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[ifxmips] cleanup sources and prepare for 2.6.27

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13660 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
thl 2008-12-16 14:07:55 +00:00
parent 84938fc03d
commit 6ad1668c37
35 changed files with 1931 additions and 1543 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
target/linux/ifxmips/Makefile
View File

@ -12,6 +12,7 @@ BOARDNAME:=Infineon Mips
FEATURES:=squashfs jffs2
SUBTARGETS:=generic nfs
LINUX_VERSION:=2.6.26.8
#LINUX_VERSION:=2.6.27.9
include $(INCLUDE_DIR)/target.mk
DEFAULT_PACKAGES+=uboot-ifxmips

11
target/linux/ifxmips/config-2.6.26
View File

@ -22,11 +22,11 @@ CONFIG_CPU_HAS_SYNC=y
# CONFIG_CPU_LITTLE_ENDIAN is not set
# CONFIG_CPU_LOONGSON2 is not set
CONFIG_CPU_MIPS32=y
CONFIG_CPU_MIPS32_R1=y
# CONFIG_CPU_MIPS32_R2 is not set
# CONFIG_CPU_MIPS32_R1 is not set
CONFIG_CPU_MIPS32_R2=y
# CONFIG_CPU_MIPS64_R1 is not set
# CONFIG_CPU_MIPS64_R2 is not set
CONFIG_CPU_MIPSR1=y
CONFIG_CPU_MIPSR2=y
# CONFIG_CPU_NEVADA is not set
# CONFIG_CPU_R10000 is not set
# CONFIG_CPU_R3000 is not set
@ -113,6 +113,7 @@ CONFIG_MIPS_MT_DISABLED=y
# CONFIG_MIPS_MT_SMTC is not set
# CONFIG_MIPS_SEAD is not set
# CONFIG_MIPS_SIM is not set
# CONFIG_MIPS_VPE_LOADER is not set
CONFIG_MTD=y
# CONFIG_MTD_ABSENT is not set
CONFIG_MTD_BLKDEVS=y
@ -166,7 +167,6 @@ CONFIG_MTD_PARTITIONS=y
# CONFIG_NE2K_PCI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NO_IOPORT is not set
# CONFIG_OCF_OCF is not set
CONFIG_PAGEFLAGS_EXTENDED=y
# CONFIG_PAGE_SIZE_16KB is not set
CONFIG_PAGE_SIZE_4KB=y
@ -180,6 +180,7 @@ CONFIG_PCI_DOMAINS=y
# CONFIG_PMC_YOSEMITE is not set
# CONFIG_PNX8550_JBS is not set
# CONFIG_PNX8550_STB810 is not set
# CONFIG_PROM_EMU is not set
# CONFIG_R6040 is not set
CONFIG_RFKILL_LEDS=y
CONFIG_RTC_LIB=y
@ -208,10 +209,12 @@ CONFIG_SSB_POSSIBLE=y
CONFIG_SWAP_IO_SPACE=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_SYS_HAS_CPU_MIPS32_R1=y
CONFIG_SYS_HAS_CPU_MIPS32_R2=y
CONFIG_SYS_HAS_EARLY_PRINTK=y
CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
CONFIG_SYS_SUPPORTS_MULTITHREADING=y
# CONFIG_TC35815 is not set
# CONFIG_TICK_ONESHOT is not set
# CONFIG_TOSHIBA_JMR3927 is not set

257
target/linux/ifxmips/config-2.6.27 Normal file
View File

@ -0,0 +1,257 @@
CONFIG_32BIT=y
# CONFIG_64BIT is not set
# CONFIG_8139TOO is not set
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_ARCH_POPULATES_NODE_MAP=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_ARCH_SUPPORTS_OPROFILE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
# CONFIG_ATM is not set
CONFIG_BASE_SMALL=0
# CONFIG_BCM47XX is not set
CONFIG_BITREVERSE=y
# CONFIG_BT is not set
CONFIG_CEVT_R4K=y
CONFIG_CLASSIC_RCU=y
CONFIG_CMDLINE="console=ttyS0,9600 rootfstype=squashfs,jffs2 init=/etc/preinit"
CONFIG_CPU_BIG_ENDIAN=y
CONFIG_CPU_HAS_LLSC=y
CONFIG_CPU_HAS_PREFETCH=y
CONFIG_CPU_HAS_SYNC=y
# CONFIG_CPU_LITTLE_ENDIAN is not set
# CONFIG_CPU_LOONGSON2 is not set
CONFIG_CPU_MIPS32=y
# CONFIG_CPU_MIPS32_R1 is not set
CONFIG_CPU_MIPS32_R2=y
# CONFIG_CPU_MIPS64_R1 is not set
# CONFIG_CPU_MIPS64_R2 is not set
CONFIG_CPU_MIPSR2=y
# CONFIG_CPU_NEVADA is not set
# CONFIG_CPU_R10000 is not set
# CONFIG_CPU_R3000 is not set
# CONFIG_CPU_R4300 is not set
# CONFIG_CPU_R4X00 is not set
# CONFIG_CPU_R5000 is not set
# CONFIG_CPU_R5432 is not set
# CONFIG_CPU_R6000 is not set
# CONFIG_CPU_R8000 is not set
# CONFIG_CPU_RM7000 is not set
# CONFIG_CPU_RM9000 is not set
# CONFIG_CPU_SB1 is not set
CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
CONFIG_CPU_SUPPORTS_HIGHMEM=y
# CONFIG_CPU_TX39XX is not set
# CONFIG_CPU_TX49XX is not set
# CONFIG_CPU_VR41XX is not set
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CSRC_R4K=y
CONFIG_DEVPORT=y
# CONFIG_DM9000 is not set
CONFIG_DMA_NEED_PCI_MAP_STATE=y
CONFIG_DMA_NONCOHERENT=y
CONFIG_EARLY_PRINTK=y
CONFIG_FS_POSIX_ACL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_CMOS_UPDATE=y
# CONFIG_GENERIC_FIND_FIRST_BIT is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_GPIO=y
# CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ is not set
CONFIG_GPIO_DEVICE=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_HAVE_ARCH_TRACEHOOK is not set
# CONFIG_HAVE_CLK is not set
# CONFIG_HAVE_DMA_ATTRS is not set
# CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_HAVE_IDE=y
# CONFIG_HAVE_IOREMAP_PROT is not set
# CONFIG_HAVE_KPROBES is not set
# CONFIG_HAVE_KRETPROBES is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_STD_PC_SERIAL_PORT=y
# CONFIG_HIGH_RES_TIMERS is not set
CONFIG_HW_HAS_PCI=y
CONFIG_HW_RANDOM=y
# CONFIG_I2C is not set
# CONFIG_IDE is not set
CONFIG_IFXMIPS=y
CONFIG_IFXMIPS_EEPROM=y
CONFIG_IFXMIPS_GPIO_RST_BTN=y
# CONFIG_IFXMIPS_MEI is not set
CONFIG_IFXMIPS_MII0=y
# CONFIG_IFXMIPS_PROM_ASC0 is not set
CONFIG_IFXMIPS_PROM_ASC1=y
CONFIG_IFXMIPS_SSC=y
CONFIG_IFXMIPS_WDT=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_IRQ_CPU=y
CONFIG_KALLSYMS=y
CONFIG_KMOD=y
# CONFIG_LEDS_ALIX is not set
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_IFXMIPS=y
# CONFIG_LEMOTE_FULONG is not set
# CONFIG_MACH_ALCHEMY is not set
# CONFIG_MACH_DECSTATION is not set
# CONFIG_MACH_JAZZ is not set
# CONFIG_MACH_TX39XX is not set
# CONFIG_MACH_TX49XX is not set
# CONFIG_MACH_VR41XX is not set
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MIKROTIK_RB532 is not set
CONFIG_MIPS=y
# CONFIG_MIPS_COBALT is not set
CONFIG_MIPS_L1_CACHE_SHIFT=5
# CONFIG_MIPS_MACHINE is not set
# CONFIG_MIPS_MALTA is not set
CONFIG_MIPS_MT_DISABLED=y
# CONFIG_MIPS_MT_SMP is not set
# CONFIG_MIPS_MT_SMTC is not set
# CONFIG_MIPS_SIM is not set
# CONFIG_MIPS_VPE_LOADER is not set
CONFIG_MTD=y
# CONFIG_MTD_ABSENT is not set
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y
# CONFIG_MTD_BLOCK2MTD is not set
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
CONFIG_MTD_CFI_AMDSTD=y
# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set
CONFIG_MTD_CFI_GEOMETRY=y
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_CFI_INTELEXT is not set
# CONFIG_MTD_CFI_LE_BYTE_SWAP is not set
CONFIG_MTD_CFI_NOSWAP=y
# CONFIG_MTD_CFI_STAA is not set
CONFIG_MTD_CFI_UTIL=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_COMPLEX_MAPPINGS=y
# CONFIG_MTD_CONCAT is not set
CONFIG_MTD_GEN_PROBE=y
CONFIG_MTD_IFXMIPS=y
# CONFIG_MTD_JEDECPROBE is not set
# CONFIG_MTD_MAP_BANK_WIDTH_1 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
CONFIG_MTD_MAP_BANK_WIDTH_2=y
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_4 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_ONENAND is not set
# CONFIG_MTD_OTP is not set
CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_PCI is not set
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_PHYSMAP is not set
# CONFIG_MTD_PLATRAM is not set
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_NATSEMI is not set
CONFIG_NF_CT_ACCT=y
# CONFIG_NO_IOPORT is not set
CONFIG_PAGEFLAGS_EXTENDED=y
# CONFIG_PAGE_SIZE_16KB is not set
CONFIG_PAGE_SIZE_4KB=y
# CONFIG_PAGE_SIZE_64KB is not set
# CONFIG_PAGE_SIZE_8KB is not set
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
# CONFIG_PCSPKR_PLATFORM is not set
# CONFIG_PMC_MSP is not set
# CONFIG_PMC_YOSEMITE is not set
# CONFIG_PNX8550_JBS is not set
# CONFIG_PNX8550_STB810 is not set
# CONFIG_PROBE_INITRD_HEADER is not set
# CONFIG_PROM_EMU is not set
# CONFIG_R6040 is not set
CONFIG_RFKILL_LEDS=y
CONFIG_RTC_LIB=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
CONFIG_SCSI_WAIT_SCAN=m
# CONFIG_SERIAL_8250 is not set
CONFIG_SERIAL_IFXMIPS=y
# CONFIG_SGI_IP22 is not set
# CONFIG_SGI_IP27 is not set
# CONFIG_SGI_IP28 is not set
# CONFIG_SGI_IP32 is not set
# CONFIG_SIBYTE_BIGSUR is not set
# CONFIG_SIBYTE_CARMEL is not set
# CONFIG_SIBYTE_CRHINE is not set
# CONFIG_SIBYTE_CRHONE is not set
# CONFIG_SIBYTE_LITTLESUR is not set
# CONFIG_SIBYTE_RHONE is not set
# CONFIG_SIBYTE_SENTOSA is not set
# CONFIG_SIBYTE_SWARM is not set
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_SPARSEMEM_STATIC is not set
# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SWAP is not set
CONFIG_SWAP_IO_SPACE=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_SYS_HAS_CPU_MIPS32_R1=y
CONFIG_SYS_HAS_CPU_MIPS32_R2=y
CONFIG_SYS_HAS_EARLY_PRINTK=y
CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
CONFIG_SYS_SUPPORTS_MULTITHREADING=y
# CONFIG_TC35815 is not set
# CONFIG_TICK_ONESHOT is not set
CONFIG_TRAD_SIGNALS=y
CONFIG_USB=m
CONFIG_USB_AMD5536UDC=y
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_DWC_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
CONFIG_USB_ETH=y
CONFIG_USB_ETH_RNDIS=y
# CONFIG_USB_FILE_STORAGE is not set
CONFIG_USB_GADGET=y
# CONFIG_USB_GADGETFS is not set
CONFIG_USB_GADGET_AMD5536UDC=y
# CONFIG_USB_GADGET_AT91 is not set
# CONFIG_USB_GADGET_ATMEL_USBA is not set
CONFIG_USB_GADGET_DEBUG_FILES=y
CONFIG_USB_GADGET_DEBUG_FS=y
CONFIG_USB_GADGET_DUALSPEED=y
# CONFIG_USB_GADGET_DUMMY_HCD is not set
# CONFIG_USB_GADGET_FSL_USB2 is not set
# CONFIG_USB_GADGET_GOKU is not set
# CONFIG_USB_GADGET_LH7A40X is not set
# CONFIG_USB_GADGET_M66592 is not set
# CONFIG_USB_GADGET_MUSB_HDRC is not set
# CONFIG_USB_GADGET_NET2280 is not set
# CONFIG_USB_GADGET_OMAP is not set
# CONFIG_USB_GADGET_PXA25X is not set
# CONFIG_USB_GADGET_PXA27X is not set
# CONFIG_USB_GADGET_S3C2410 is not set
CONFIG_USB_GADGET_SELECTED=y
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
CONFIG_USB_SUPPORT=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_ZERO is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIA_RHINE is not set
CONFIG_VIDEO_MEDIA=m
CONFIG_VIDEO_V4L2=m
CONFIG_VIDEO_V4L2_COMMON=m
CONFIG_ZONE_DMA_FLAG=0

6
target/linux/ifxmips/files/arch/mips/ifxmips/board.c
View File

@ -70,7 +70,7 @@ struct ifxmips_board {
int num_devs;
};
spinlock_t ebu_lock = SPIN_LOCK_UNLOCKED;
DEFINE_SPINLOCK(ebu_lock);
EXPORT_SYMBOL_GPL(ebu_lock);
static unsigned char ifxmips_ethaddr[6];
@ -354,8 +354,8 @@ int __init ifxmips_init_devices(void)
#endif
ifxmips_led_data.leds = board->ifxmips_leds;
printk(KERN_INFO "%s:%s[%d]adding %d devs\n",
__FILE__, __func__, __LINE__, board->num_devs);
printk(KERN_INFO "%s: adding %d devs\n",
__func__, board->num_devs);
ifxmips_gpio.resource = &board->reset_resource;
ifxmips_gpio_dev.resource = &board->gpiodev_resource;

4
target/linux/ifxmips/files/arch/mips/ifxmips/clock.c
View File

@ -24,8 +24,8 @@
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include <linux/uaccess.h>
#include <linux/unistd.h>
#include <asm/irq.h>
#include <asm/div64.h>
#include <linux/errno.h>

272
target/linux/ifxmips/files/arch/mips/ifxmips/dma-core.c
View File

@ -15,9 +15,9 @@
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <asm/uaccess.h>
#include <linux/uaccess.h>
#include <linux/errno.h>
#include <asm/io.h>
#include <linux/io.h>
#include <asm/ifxmips/ifxmips.h>
#include <asm/ifxmips/ifxmips_irq.h>
@ -40,8 +40,8 @@ u64 *g_desc_list;
_dma_device_info dma_devs[MAX_DMA_DEVICE_NUM];
_dma_channel_info dma_chan[MAX_DMA_CHANNEL_NUM];
char global_device_name[MAX_DMA_DEVICE_NUM][20] =
{ {"PPE"}, {"DEU"}, {"SPI"}, {"SDIO"}, {"MCTRL0"}, {"MCTRL1"} };
static const char *global_device_name[MAX_DMA_DEVICE_NUM] =
{ "PPE", "DEU", "SPI", "SDIO", "MCTRL0", "MCTRL1" };
_dma_chan_map default_dma_map[MAX_DMA_CHANNEL_NUM] = {
{"PPE", IFXMIPS_DMA_RX, 0, IFXMIPS_DMA_CH0_INT, 0},
@ -67,34 +67,30 @@ _dma_chan_map default_dma_map[MAX_DMA_CHANNEL_NUM] = {
};
_dma_chan_map *chan_map = default_dma_map;
volatile u32 g_ifxmips_dma_int_status = 0;
volatile int g_ifxmips_dma_in_process = 0;/*0=not in process,1=in process*/
volatile u32 g_ifxmips_dma_int_status;
volatile int g_ifxmips_dma_in_process; /* 0=not in process, 1=in process */
void do_dma_tasklet(unsigned long);
DECLARE_TASKLET(dma_tasklet, do_dma_tasklet, 0);
u8*
common_buffer_alloc (int len, int *byte_offset, void **opt)
u8 *common_buffer_alloc(int len, int *byte_offset, void **opt)
{
u8 *buffer = (u8 *) kmalloc (len * sizeof (u8), GFP_KERNEL);
u8 *buffer = kmalloc(len * sizeof(u8), GFP_KERNEL);
*byte_offset = 0;
return buffer;
}
void
common_buffer_free (u8 *dataptr, void *opt)
void common_buffer_free(u8 *dataptr, void *opt)
{
if (dataptr)
kfree(dataptr);
}
void
enable_ch_irq (_dma_channel_info *pCh)
void enable_ch_irq(_dma_channel_info *pCh)
{
int chan_no = (int)(pCh - dma_chan);
int flag;
unsigned long flag;
local_irq_save(flag);
ifxmips_w32(chan_no, IFXMIPS_DMA_CS);
@ -104,10 +100,9 @@ enable_ch_irq (_dma_channel_info *pCh)
ifxmips_enable_irq(pCh->irq);
}
void
disable_ch_irq (_dma_channel_info *pCh)
void disable_ch_irq(_dma_channel_info *pCh)
{
int flag;
unsigned long flag;
int chan_no = (int) (pCh - dma_chan);
local_irq_save(flag);
@ -119,10 +114,9 @@ disable_ch_irq (_dma_channel_info *pCh)
ifxmips_mask_and_ack_irq(pCh->irq);
}
void
open_chan (_dma_channel_info *pCh)
void open_chan(_dma_channel_info *pCh)
{
int flag;
unsigned long flag;
int chan_no = (int)(pCh - dma_chan);
local_irq_save(flag);
@ -133,10 +127,9 @@ open_chan (_dma_channel_info *pCh)
local_irq_restore(flag);
}
void
close_chan(_dma_channel_info *pCh)
void close_chan(_dma_channel_info *pCh)
{
int flag;
unsigned long flag;
int chan_no = (int) (pCh - dma_chan);
local_irq_save(flag);
@ -146,8 +139,7 @@ close_chan(_dma_channel_info *pCh)
local_irq_restore(flag);
}
void
reset_chan (_dma_channel_info *pCh)
void reset_chan(_dma_channel_info *pCh)
{
int chan_no = (int) (pCh - dma_chan);
@ -155,14 +147,13 @@ reset_chan (_dma_channel_info *pCh)
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_CCTRL) | 2, IFXMIPS_DMA_CCTRL);
}
void
rx_chan_intr_handler (int chan_no)
void rx_chan_intr_handler(int chan_no)
{
_dma_device_info *pDev = (_dma_device_info *)dma_chan[chan_no].dma_dev;
_dma_channel_info *pCh = &dma_chan[chan_no];
struct rx_desc *rx_desc_p;
int tmp;
int flag;
unsigned long flag;
/*handle command complete interrupt */
rx_desc_p = (struct rx_desc *)pCh->desc_base + pCh->curr_desc;
@ -186,13 +177,12 @@ rx_chan_intr_handler (int chan_no)
}
}
inline void
tx_chan_intr_handler (int chan_no)
inline void tx_chan_intr_handler(int chan_no)
{
_dma_device_info *pDev = (_dma_device_info *)dma_chan[chan_no].dma_dev;
_dma_channel_info *pCh = &dma_chan[chan_no];
int tmp;
int flag;
unsigned long flag;
local_irq_save(flag);
tmp = ifxmips_r32(IFXMIPS_DMA_CS);
@ -206,62 +196,51 @@ tx_chan_intr_handler (int chan_no)
pDev->intr_handler(pDev, TRANSMIT_CPT_INT);
}
void
do_dma_tasklet (unsigned long unused)
void do_dma_tasklet(unsigned long unused)
{
int i;
int chan_no = 0;
int budget = DMA_INT_BUDGET;
int weight = 0;
int flag;
unsigned long flag;
while (g_ifxmips_dma_int_status)
{
if (budget-- < 0)
{
while (g_ifxmips_dma_int_status) {
if (budget-- < 0) {
tasklet_schedule(&dma_tasklet);
return;
}
chan_no = -1;
weight = 0;
for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++)
{
if ((g_ifxmips_dma_int_status & (1 << i)) && dma_chan[i].weight > 0)
{
if (dma_chan[i].weight > weight)
{
for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++) {
if ((g_ifxmips_dma_int_status & (1 << i)) && dma_chan[i].weight > 0) {
if (dma_chan[i].weight > weight) {
chan_no = i;
weight = dma_chan[chan_no].weight;
}
}
}
if (chan_no >= 0)
{
if (chan_no >= 0) {
if (chan_map[chan_no].dir == IFXMIPS_DMA_RX)
rx_chan_intr_handler(chan_no);
else
tx_chan_intr_handler(chan_no);
} else {
for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++)
{
dma_chan[i].weight = dma_chan[i].default_weight;
}
}
}
local_irq_save(flag);
g_ifxmips_dma_in_process = 0;
if (g_ifxmips_dma_int_status)
{
if (g_ifxmips_dma_int_status) {
g_ifxmips_dma_in_process = 1;
tasklet_schedule(&dma_tasklet);
}
local_irq_restore(flag);
}
irqreturn_t
dma_interrupt (int irq, void *dev_id)
irqreturn_t dma_interrupt(int irq, void *dev_id)
{
_dma_channel_info *pCh;
int chan_no = 0;
@ -278,8 +257,7 @@ dma_interrupt (int irq, void *dev_id)
ifxmips_w32(tmp, IFXMIPS_DMA_IRNEN);
ifxmips_mask_and_ack_irq(irq);
if (!g_ifxmips_dma_in_process)
{
if (!g_ifxmips_dma_in_process) {
g_ifxmips_dma_in_process = 1;
tasklet_schedule(&dma_tasklet);
}
@ -287,15 +265,12 @@ dma_interrupt (int irq, void *dev_id)
return IRQ_HANDLED;
}
_dma_device_info*
dma_device_reserve (char *dev_name)
_dma_device_info *dma_device_reserve(char *dev_name)
{
int i;
for (i = 0; i < MAX_DMA_DEVICE_NUM; i++)
{
if (strcmp(dev_name, dma_devs[i].device_name) == 0)
{
for (i = 0; i < MAX_DMA_DEVICE_NUM; i++) {
if (strcmp(dev_name, dma_devs[i].device_name) == 0) {
if (dma_devs[i].reserved)
return NULL;
dma_devs[i].reserved = 1;
@ -305,34 +280,31 @@ dma_device_reserve (char *dev_name)
return &dma_devs[i];
}
EXPORT_SYMBOL(dma_device_reserve);
void
dma_device_release (_dma_device_info *dev)
void dma_device_release(_dma_device_info *dev)
{
dev->reserved = 0;
}
EXPORT_SYMBOL(dma_device_release);
void
dma_device_register(_dma_device_info *dev)
void dma_device_register(_dma_device_info *dev)
{
int i, j;
int chan_no = 0;
u8 *buffer;
int byte_offset;
int flag;
unsigned long flag;
_dma_device_info *pDev;
_dma_channel_info *pCh;
struct rx_desc *rx_desc_p;
struct tx_desc *tx_desc_p;
for (i = 0; i < dev->max_tx_chan_num; i++)
{
for (i = 0; i < dev->max_tx_chan_num; i++) {
pCh = dev->tx_chan[i];
if (pCh->control == IFXMIPS_DMA_CH_ON)
{
if (pCh->control == IFXMIPS_DMA_CH_ON) {
chan_no = (int)(pCh - dma_chan);
for (j = 0; j < pCh->desc_len; j++)
{
for (j = 0; j < pCh->desc_len; j++) {
tx_desc_p = (struct tx_desc *)pCh->desc_base + j;
memset(tx_desc_p, 0, sizeof(struct tx_desc));
}
@ -344,22 +316,20 @@ dma_device_register(_dma_device_info *dev)
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_CCTRL) & ~1, IFXMIPS_DMA_CCTRL);
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_CCTRL) | 2, IFXMIPS_DMA_CCTRL);
while (ifxmips_r32(IFXMIPS_DMA_CCTRL) & 2){};
while (ifxmips_r32(IFXMIPS_DMA_CCTRL) & 2)
;
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_IRNEN) | (1 << chan_no), IFXMIPS_DMA_IRNEN);
ifxmips_w32(0x30100, IFXMIPS_DMA_CCTRL); /* reset and enable channel,enable channel later */
local_irq_restore(flag);
}
}
for (i = 0; i < dev->max_rx_chan_num; i++)
{
for (i = 0; i < dev->max_rx_chan_num; i++) {
pCh = dev->rx_chan[i];
if (pCh->control == IFXMIPS_DMA_CH_ON)
{
if (pCh->control == IFXMIPS_DMA_CH_ON) {
chan_no = (int)(pCh - dma_chan);
for (j = 0; j < pCh->desc_len; j++)
{
for (j = 0; j < pCh->desc_len; j++) {
rx_desc_p = (struct rx_desc *)pCh->desc_base + j;
pDev = (_dma_device_info *)(pCh->dma_dev);
buffer = pDev->buffer_alloc(pCh->packet_size, &byte_offset, (void *)&(pCh->opt[j]));
@ -382,7 +352,8 @@ dma_device_register(_dma_device_info *dev)
ifxmips_w32(pCh->desc_len, IFXMIPS_DMA_CDLEN);
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_CCTRL) & ~1, IFXMIPS_DMA_CCTRL);
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_CCTRL) | 2, IFXMIPS_DMA_CCTRL);
while (ifxmips_r32(IFXMIPS_DMA_CCTRL) & 2){};
while (ifxmips_r32(IFXMIPS_DMA_CCTRL) & 2)
;
ifxmips_w32(0x0a, IFXMIPS_DMA_CIE); /* fix me, should enable all the interrupts here? */
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_IRNEN) | (1 << chan_no), IFXMIPS_DMA_IRNEN);
ifxmips_w32(0x30000, IFXMIPS_DMA_CCTRL);
@ -391,22 +362,20 @@ dma_device_register(_dma_device_info *dev)
}
}
}
EXPORT_SYMBOL(dma_device_register);
void
dma_device_unregister (_dma_device_info *dev)
void dma_device_unregister(_dma_device_info *dev)
{
int i, j;
int chan_no;
_dma_channel_info *pCh;
struct rx_desc *rx_desc_p;
struct tx_desc *tx_desc_p;
int flag;
unsigned long flag;
for (i = 0; i < dev->max_tx_chan_num; i++)
{
for (i = 0; i < dev->max_tx_chan_num; i++) {
pCh = dev->tx_chan[i];
if (pCh->control == IFXMIPS_DMA_CH_ON)
{
if (pCh->control == IFXMIPS_DMA_CH_ON) {
chan_no = (int)(dev->tx_chan[i] - dma_chan);
local_irq_save(flag);
ifxmips_w32(chan_no, IFXMIPS_DMA_CS);
@ -416,26 +385,24 @@ dma_device_unregister (_dma_device_info *dev)
ifxmips_w32(0, IFXMIPS_DMA_CIE); /* fix me, should disable all the interrupts here? */
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_IRNEN) & ~(1 << chan_no), IFXMIPS_DMA_IRNEN); /* disable interrupts */
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_CCTRL) & ~1, IFXMIPS_DMA_CCTRL);
while (ifxmips_r32(IFXMIPS_DMA_CCTRL) & 1) {};
while (ifxmips_r32(IFXMIPS_DMA_CCTRL) & 1)
;
local_irq_restore(flag);
for (j = 0; j < pCh->desc_len; j++)
{
for (j = 0; j < pCh->desc_len; j++) {
tx_desc_p = (struct tx_desc *)pCh->desc_base + j;
if ((tx_desc_p->status.field.OWN == CPU_OWN && tx_desc_p->status.field.C)
|| (tx_desc_p->status.field.OWN == DMA_OWN && tx_desc_p->status.field.data_length > 0))
{
|| (tx_desc_p->status.field.OWN == DMA_OWN && tx_desc_p->status.field.data_length > 0)) {
dev->buffer_free((u8 *) __va(tx_desc_p->Data_Pointer), (void *)pCh->opt[j]);
}
tx_desc_p->status.field.OWN = CPU_OWN;
memset(tx_desc_p, 0, sizeof(struct tx_desc));
}
//TODO should free buffer that is not transferred by dma
/* TODO should free buffer that is not transferred by dma */
}
}
for (i = 0; i < dev->max_rx_chan_num; i++)
{
for (i = 0; i < dev->max_rx_chan_num; i++) {
pCh = dev->rx_chan[i];
chan_no = (int)(dev->rx_chan[i] - dma_chan);
ifxmips_disable_irq(pCh->irq);
@ -450,27 +417,26 @@ dma_device_unregister (_dma_device_info *dev)
ifxmips_w32(0, IFXMIPS_DMA_CIE); /* fix me, should disable all the interrupts here? */
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_IRNEN) & ~(1 << chan_no), IFXMIPS_DMA_IRNEN); /* disable interrupts */
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_CCTRL) & ~1, IFXMIPS_DMA_CCTRL);
while (ifxmips_r32(IFXMIPS_DMA_CCTRL) & 1) {};
while (ifxmips_r32(IFXMIPS_DMA_CCTRL) & 1)
;
local_irq_restore(flag);
for (j = 0; j < pCh->desc_len; j++)
{
for (j = 0; j < pCh->desc_len; j++) {
rx_desc_p = (struct rx_desc *) pCh->desc_base + j;
if ((rx_desc_p->status.field.OWN == CPU_OWN
&& rx_desc_p->status.field.C)
|| (rx_desc_p->status.field.OWN == DMA_OWN
&& rx_desc_p->status.field.data_length > 0)) {
dev->buffer_free((u8 *)
__va (rx_desc_p->
Data_Pointer),
__va(rx_desc_p->Data_Pointer),
(void *) pCh->opt[j]);
}
}
}
}
EXPORT_SYMBOL(dma_device_unregister);
int
dma_device_read (struct dma_device_info *dma_dev, u8 ** dataptr, void **opt)
int dma_device_read(struct dma_device_info *dma_dev, u8 **dataptr, void **opt)
{
u8 *buf;
int len;
@ -482,26 +448,20 @@ dma_device_read (struct dma_device_info *dma_dev, u8 ** dataptr, void **opt)
/* get the rx data first */
rx_desc_p = (struct rx_desc *) pCh->desc_base + pCh->curr_desc;
if (!(rx_desc_p->status.field.OWN == CPU_OWN && rx_desc_p->status.field.C))
{
return 0;
}
buf = (u8 *) __va(rx_desc_p->Data_Pointer);
*(u32 *)dataptr = (u32)buf;
len = rx_desc_p->status.field.data_length;
if (opt)
{
*(int *)opt = (int)pCh->opt[pCh->curr_desc];
}
/* replace with a new allocated buffer */
buf = dma_dev->buffer_alloc(pCh->packet_size, &byte_offset, &p);
if (buf)
{
dma_cache_inv ((unsigned long) buf,
pCh->packet_size);
if (buf) {
dma_cache_inv((unsigned long) buf, pCh->packet_size);
pCh->opt[pCh->curr_desc] = p;
wmb();
@ -522,11 +482,11 @@ dma_device_read (struct dma_device_info *dma_dev, u8 ** dataptr, void **opt)
return len;
}
EXPORT_SYMBOL(dma_device_read);
int
dma_device_write (struct dma_device_info *dma_dev, u8 * dataptr, int len, void *opt)
int dma_device_write(struct dma_device_info *dma_dev, u8 *dataptr, int len, void *opt)
{
int flag;
unsigned long flag;
u32 tmp, byte_offset;
_dma_channel_info *pCh;
int chan_no;
@ -537,8 +497,7 @@ dma_device_write (struct dma_device_info *dma_dev, u8 * dataptr, int len, void *
chan_no = (int)(pCh - (_dma_channel_info *) dma_chan);
tx_desc_p = (struct tx_desc *)pCh->desc_base + pCh->prev_desc;
while (tx_desc_p->status.field.OWN == CPU_OWN && tx_desc_p->status.field.C)
{
while (tx_desc_p->status.field.OWN == CPU_OWN && tx_desc_p->status.field.C) {
dma_dev->buffer_free((u8 *) __va(tx_desc_p->Data_Pointer), pCh->opt[pCh->prev_desc]);
memset(tx_desc_p, 0, sizeof(struct tx_desc));
pCh->prev_desc = (pCh->prev_desc + 1) % (pCh->desc_len);
@ -546,8 +505,7 @@ dma_device_write (struct dma_device_info *dma_dev, u8 * dataptr, int len, void *
}
tx_desc_p = (struct tx_desc *)pCh->desc_base + pCh->curr_desc;
/* Check whether this descriptor is available */
if (tx_desc_p->status.field.OWN == DMA_OWN || tx_desc_p->status.field.C)
{
if (tx_desc_p->status.field.OWN == DMA_OWN || tx_desc_p->status.field.C) {
/* if not, the tell the upper layer device */
dma_dev->intr_handler (dma_dev, TX_BUF_FULL_INT);
local_irq_restore(flag);
@ -571,8 +529,7 @@ dma_device_write (struct dma_device_info *dma_dev, u8 * dataptr, int len, void *
/*Check whether this descriptor is available */
tx_desc_p = (struct tx_desc *) pCh->desc_base + pCh->curr_desc;
if (tx_desc_p->status.field.OWN == DMA_OWN)
{
if (tx_desc_p->status.field.OWN == DMA_OWN) {
/*if not , the tell the upper layer device */
dma_dev->intr_handler (dma_dev, TX_BUF_FULL_INT);
}
@ -587,33 +544,28 @@ dma_device_write (struct dma_device_info *dma_dev, u8 * dataptr, int len, void *
return len;
}
EXPORT_SYMBOL(dma_device_write);
int
map_dma_chan(_dma_chan_map *map)
int map_dma_chan(_dma_chan_map *map)
{
int i, j;
int result;
for (i = 0; i < MAX_DMA_DEVICE_NUM; i++)
{
strcpy(dma_devs[i].device_name, global_device_name[i]);
}
for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++)
{
for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++) {
dma_chan[i].irq = map[i].irq;
result = request_irq(dma_chan[i].irq, dma_interrupt, IRQF_DISABLED, "dma-core", (void*)&dma_chan[i]);
if (result)
{
printk("error, cannot get dma_irq!\n");
result = request_irq(dma_chan[i].irq, dma_interrupt, IRQF_DISABLED, map[i].dev_name, (void *)&dma_chan[i]);
if (result) {
printk(KERN_WARNING "error, cannot get dma_irq!\n");
free_irq(dma_chan[i].irq, (void *) &dma_interrupt);
return -EFAULT;
}
}
for (i = 0; i < MAX_DMA_DEVICE_NUM; i++)
{
for (i = 0; i < MAX_DMA_DEVICE_NUM; i++) {
dma_devs[i].num_tx_chan = 0; /*set default tx channel number to be one */
dma_devs[i].num_rx_chan = 0; /*set default rx channel number to be one */
dma_devs[i].max_rx_chan_num = 0;
@ -623,20 +575,17 @@ map_dma_chan(_dma_chan_map *map)
dma_devs[i].intr_handler = NULL;
dma_devs[i].tx_burst_len = 4;
dma_devs[i].rx_burst_len = 4;
if (i == 0)
{
if (i == 0) {
ifxmips_w32(0, IFXMIPS_DMA_PS);
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_PCTRL) | ((0xf << 8) | (1 << 6)), IFXMIPS_DMA_PCTRL); /*enable dma drop */
}
if (i == 1)
{
if (i == 1) {
ifxmips_w32(1, IFXMIPS_DMA_PS);
ifxmips_w32(0x14, IFXMIPS_DMA_PCTRL); /*deu port setting */
}
for (j = 0; j < MAX_DMA_CHANNEL_NUM; j++)
{
for (j = 0; j < MAX_DMA_CHANNEL_NUM; j++) {
dma_chan[j].byte_offset = 0;
dma_chan[j].open = &open_chan;
dma_chan[j].close = &close_chan;
@ -651,26 +600,23 @@ map_dma_chan(_dma_chan_map *map)
dma_chan[j].prev_desc = 0;
}
for (j = 0; j < MAX_DMA_CHANNEL_NUM; j++)
{
if (strcmp(dma_devs[i].device_name, map[j].dev_name) == 0)
{
if (map[j].dir == IFXMIPS_DMA_RX)
{
for (j = 0; j < MAX_DMA_CHANNEL_NUM; j++) {
if (strcmp(dma_devs[i].device_name, map[j].dev_name) == 0) {
if (map[j].dir == IFXMIPS_DMA_RX) {
dma_chan[j].dir = IFXMIPS_DMA_RX;
dma_devs[i].max_rx_chan_num++;
dma_devs[i].rx_chan[dma_devs[i].max_rx_chan_num - 1] = &dma_chan[j];
dma_devs[i].rx_chan[dma_devs[i].max_rx_chan_num - 1]->pri = map[j].pri;
dma_chan[j].dma_dev = (void *)&dma_devs[i];
} else if(map[j].dir == IFXMIPS_DMA_TX)
{ /*TX direction */
} else if (map[j].dir == IFXMIPS_DMA_TX) {
/*TX direction */
dma_chan[j].dir = IFXMIPS_DMA_TX;
dma_devs[i].max_tx_chan_num++;
dma_devs[i].tx_chan[dma_devs[i].max_tx_chan_num - 1] = &dma_chan[j];
dma_devs[i].tx_chan[dma_devs[i].max_tx_chan_num - 1]->pri = map[j].pri;
dma_chan[j].dma_dev = (void *)&dma_devs[i];
} else {
printk ("WRONG DMA MAP!\n");
printk(KERN_WARNING "WRONG DMA MAP!\n");
}
}
}
@ -679,32 +625,28 @@ map_dma_chan(_dma_chan_map *map)
return 0;
}
void
dma_chip_init(void)
void dma_chip_init(void)
{
int i;
// enable DMA from PMU
/* enable DMA from PMU */
ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_DMA);
// reset DMA
/* reset DMA */
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_CTRL) | 1, IFXMIPS_DMA_CTRL);
// diable all interrupts
/* disable all interrupts */
ifxmips_w32(0, IFXMIPS_DMA_IRNEN);
for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++)
{
for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++) {
ifxmips_w32(i, IFXMIPS_DMA_CS);
ifxmips_w32(0x2, IFXMIPS_DMA_CCTRL);
ifxmips_w32(0x80000040, IFXMIPS_DMA_CPOLL);
ifxmips_w32(ifxmips_r32(IFXMIPS_DMA_CCTRL) & ~0x1, IFXMIPS_DMA_CCTRL);
}
}
int
ifxmips_dma_init (void)
int ifxmips_dma_init(void)
{
int i;
@ -714,16 +656,14 @@ ifxmips_dma_init (void)
g_desc_list = (u64 *)KSEG1ADDR(__get_free_page(GFP_DMA));
if (g_desc_list == NULL)
{
printk("no memory for desriptor\n");
if (g_desc_list == NULL) {
printk(KERN_WARNING "no memory for desriptor\n");
return -ENOMEM;
}
memset(g_desc_list, 0, PAGE_SIZE);
for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++)
{
for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++) {
dma_chan[i].desc_base = (u32)g_desc_list + i * IFXMIPS_DMA_DESCRIPTOR_OFFSET * 8;
dma_chan[i].curr_desc = 0;
dma_chan[i].desc_len = IFXMIPS_DMA_DESCRIPTOR_OFFSET;
@ -738,8 +678,7 @@ ifxmips_dma_init (void)
arch_initcall(ifxmips_dma_init);
void
dma_cleanup(void)
void dma_cleanup(void)
{
int i;
@ -748,11 +687,4 @@ dma_cleanup(void)
free_irq(dma_chan[i].irq, (void *)&dma_interrupt);
}
EXPORT_SYMBOL (dma_device_reserve);
EXPORT_SYMBOL (dma_device_release);
EXPORT_SYMBOL (dma_device_register);
EXPORT_SYMBOL (dma_device_unregister);
EXPORT_SYMBOL (dma_device_read);
EXPORT_SYMBOL (dma_device_write);
MODULE_LICENSE("GPL");

5
target/linux/ifxmips/files/arch/mips/ifxmips/gpio.c
View File

@ -35,9 +35,8 @@
#include <linux/netlink.h>
#include <linux/platform_device.h>
#include <net/sock.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include <linux/uaccess.h>
#include <linux/semaphore.h>
#include <asm/ifxmips/ifxmips.h>
#define MAX_PORTS 2

127
target/linux/ifxmips/files/arch/mips/ifxmips/interrupt.c
View File

@ -30,17 +30,16 @@
#include <asm/ifxmips/ifxmips_irq.h>
#include <asm/irq_cpu.h>
void
ifxmips_disable_irq(unsigned int irq_nr)
void ifxmips_disable_irq(unsigned int irq_nr)
{
int i;
u32 *ifxmips_ier = IFXMIPS_ICU_IM0_IER;
irq_nr -= INT_NUM_IRQ0;
for(i = 0; i <= 4; i++)
{
for (i = 0; i <= 4; i++) {
if (irq_nr < INT_NUM_IM_OFFSET) {
ifxmips_w32(ifxmips_r32(ifxmips_ier) & ~(1 << irq_nr ), ifxmips_ier);
ifxmips_w32(ifxmips_r32(ifxmips_ier) & ~(1 << irq_nr),
ifxmips_ier);
return;
}
ifxmips_ier += IFXMIPS_ICU_OFFSET;
@ -49,19 +48,17 @@ ifxmips_disable_irq(unsigned int irq_nr)
}
EXPORT_SYMBOL(ifxmips_disable_irq);
void
ifxmips_mask_and_ack_irq(unsigned int irq_nr)
void ifxmips_mask_and_ack_irq(unsigned int irq_nr)
{
int i;
u32 *ifxmips_ier = IFXMIPS_ICU_IM0_IER;
u32 *ifxmips_isr = IFXMIPS_ICU_IM0_ISR;
irq_nr -= INT_NUM_IRQ0;
for(i = 0; i <= 4; i++)
{
if(irq_nr < INT_NUM_IM_OFFSET)
{
ifxmips_w32(ifxmips_r32(ifxmips_ier) & ~(1 << irq_nr ), ifxmips_ier);
for (i = 0; i <= 4; i++) {
if (irq_nr < INT_NUM_IM_OFFSET) {
ifxmips_w32(ifxmips_r32(ifxmips_ier) & ~(1 << irq_nr),
ifxmips_ier);
ifxmips_w32((1 << irq_nr), ifxmips_isr);
return;
}
@ -72,18 +69,16 @@ ifxmips_mask_and_ack_irq(unsigned int irq_nr)
}
EXPORT_SYMBOL(ifxmips_mask_and_ack_irq);
void
ifxmips_enable_irq(unsigned int irq_nr)
void ifxmips_enable_irq(unsigned int irq_nr)
{
int i;
u32 *ifxmips_ier = IFXMIPS_ICU_IM0_IER;
irq_nr -= INT_NUM_IRQ0;
for(i = 0; i <= 4; i++)
{
if(irq_nr < INT_NUM_IM_OFFSET)
{
ifxmips_w32(ifxmips_r32(ifxmips_ier) | (1 << irq_nr ), ifxmips_ier);
for (i = 0; i <= 4; i++) {
if (irq_nr < INT_NUM_IM_OFFSET) {
ifxmips_w32(ifxmips_r32(ifxmips_ier) | (1 << irq_nr),
ifxmips_ier);
return;
}
ifxmips_ier += IFXMIPS_ICU_OFFSET;
@ -92,22 +87,19 @@ ifxmips_enable_irq(unsigned int irq_nr)
}
EXPORT_SYMBOL(ifxmips_enable_irq);
static unsigned int
ifxmips_startup_irq(unsigned int irq)
static unsigned int ifxmips_startup_irq(unsigned int irq)
{
ifxmips_enable_irq(irq);
return 0;
}
static void
ifxmips_end_irq(unsigned int irq)
static void ifxmips_end_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
ifxmips_enable_irq(irq);
}
static struct hw_interrupt_type
ifxmips_irq_type = {
static struct hw_interrupt_type ifxmips_irq_type = {
"IFXMIPS",
.startup = ifxmips_startup_irq,
.enable = ifxmips_enable_irq,
@ -119,8 +111,7 @@ ifxmips_irq_type = {
.end = ifxmips_end_irq,
};
static inline int
ls1bit32(unsigned long x)
static inline int ls1bit32(unsigned long x)
{
__asm__ (
".set push \n"
@ -132,8 +123,7 @@ ls1bit32(unsigned long x)
return 31 - x;
}
void
ifxmips_hw_irqdispatch(int module)
void ifxmips_hw_irqdispatch(int module)
{
u32 irq;
@ -145,46 +135,58 @@ ifxmips_hw_irqdispatch(int module)
irq = ls1bit32(irq);
do_IRQ((int)irq + INT_NUM_IM0_IRL0 + (INT_NUM_IM_OFFSET * module));
if((irq == 22) && (module == 0)){
ifxmips_w32(ifxmips_r32(IFXMIPS_EBU_PCC_ISTAT) | 0x10, IFXMIPS_EBU_PCC_ISTAT);
}
if ((irq == 22) && (module == 0))
ifxmips_w32(ifxmips_r32(IFXMIPS_EBU_PCC_ISTAT) | 0x10,
IFXMIPS_EBU_PCC_ISTAT);
}
asmlinkage void
plat_irq_dispatch(void)
#ifdef CONFIG_CPU_MIPSR2_IRQ_VI
#define DEFINE_HWx_IRQDISPATCH(x) \
static void ifxmips_hw ## x ## _irqdispatch(void)\
{\
ifxmips_hw_irqdispatch(x); \
}
static void ifxmips_hw5_irqdispatch(void)
{
do_IRQ(MIPS_CPU_TIMER_IRQ);
}
DEFINE_HWx_IRQDISPATCH(0)
DEFINE_HWx_IRQDISPATCH(1)
DEFINE_HWx_IRQDISPATCH(2)
DEFINE_HWx_IRQDISPATCH(3)
DEFINE_HWx_IRQDISPATCH(4)
/*DEFINE_HWx_IRQDISPATCH(5)*/
#endif /* #ifdef CONFIG_CPU_MIPSR2_IRQ_VI */
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
unsigned int i;
if(pending & CAUSEF_IP7)
{
if (pending & CAUSEF_IP7) {
do_IRQ(MIPS_CPU_TIMER_IRQ);
goto out;
} else {
for(i = 0; i < 5; i++)
{
if(pending & (CAUSEF_IP2 << i))
{
for (i = 0; i < 5; i++) {
if (pending & (CAUSEF_IP2 << i)) {
ifxmips_hw_irqdispatch(i);
goto out;
}
}
}
printk("Spurious IRQ: CAUSE=0x%08x\n", read_c0_status());
printk(KERN_ALERT "Spurious IRQ: CAUSE=0x%08x\n", read_c0_status());
out:
return;
}
static struct irqaction
cascade = {
static struct irqaction cascade = {
.handler = no_action,
.flags = IRQF_DISABLED,
.name = "cascade",
};
void __init
arch_init_irq(void)
void __init arch_init_irq(void)
{
int i;
@ -196,8 +198,35 @@ arch_init_irq(void)
for (i = 2; i <= 6; i++)
setup_irq(i, &cascade);
for(i = INT_NUM_IRQ0; i <= (INT_NUM_IRQ0 + (5 * INT_NUM_IM_OFFSET)); i++)
set_irq_chip_and_handler(i, &ifxmips_irq_type, handle_level_irq);
set_c0_status(IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5);
#ifdef CONFIG_CPU_MIPSR2_IRQ_VI
if (cpu_has_vint) {
printk(KERN_INFO "Setting up vectored interrupts\n");
set_vi_handler(2, ifxmips_hw0_irqdispatch);
set_vi_handler(3, ifxmips_hw1_irqdispatch);
set_vi_handler(4, ifxmips_hw2_irqdispatch);
set_vi_handler(5, ifxmips_hw3_irqdispatch);
set_vi_handler(6, ifxmips_hw4_irqdispatch);
set_vi_handler(7, ifxmips_hw5_irqdispatch);
}
#endif /* CONFIG_CPU_MIPSR2_IRQ_VI */
for (i = INT_NUM_IRQ0; i <= (INT_NUM_IRQ0 + (5 * INT_NUM_IM_OFFSET));
i++)
set_irq_chip_and_handler(i, &ifxmips_irq_type,
handle_level_irq);
#if !defined(CONFIG_MIPS_MT_SMP) && !defined(CONFIG_MIPS_MT_SMTC)
set_c0_status(IE_IRQ0 | IE_IRQ1 | IE_IRQ2 |
IE_IRQ3 | IE_IRQ4 | IE_IRQ5);
#else
set_c0_status(IE_SW0 | IE_SW1 | IE_IRQ0 | IE_IRQ1 |
IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5);
#endif
}
void __cpuinit arch_fixup_c0_irqs(void)
{
/* FIXME: check for CPUID and only do fix for specific chips/versions */
cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;
cp0_perfcount_irq = CP0_LEGACY_PERFCNT_IRQ;
}

64
target/linux/ifxmips/files/arch/mips/ifxmips/prom.c
View File

@ -23,35 +23,36 @@
#include <asm/bootinfo.h>
#include <asm/ifxmips/ifxmips.h>
static char buf[1024];
static char buf[1024]; /* for prom_printf() */
/* for voice cpu (MIPS24K) */
unsigned int *prom_cp1_base = NULL;
unsigned int prom_cp1_size = 0;
/* for Multithreading (APRP) on MIPS34K */
unsigned long physical_memsize = 0L;
#ifdef IFXMIPS_PROM_ASC0
#define IFXMIPS_ASC_DIFF 0
#else
#define IFXMIPS_ASC_DIFF IFXMIPS_ASC_BASE_DIFF
#endif
static inline u32
asc_r32(unsigned long r)
static inline u32 asc_r32(unsigned long r)
{
return ifxmips_r32((u32 *)(IFXMIPS_ASC_BASE_ADDR + IFXMIPS_ASC_DIFF + r));
}
static inline void
asc_w32(u32 v, unsigned long r)
static inline void asc_w32(u32 v, unsigned long r)
{
ifxmips_w32(v, (u32 *)(IFXMIPS_ASC_BASE_ADDR + IFXMIPS_ASC_DIFF + r));
}
void
prom_free_prom_memory(void)
void prom_free_prom_memory(void)
{
}
void
prom_putchar(char c)
void prom_putchar(char c)
{
unsigned long flags;
@ -64,8 +65,7 @@ prom_putchar(char c)
local_irq_restore(flags);
}
void
prom_printf(const char * fmt, ...)
void prom_printf(const char *fmt, ...)
{
va_list args;
int l;
@ -88,35 +88,47 @@ EXPORT_SYMBOL(prom_get_cp1_base);
unsigned int prom_get_cp1_size(void)
{
return prom_cp1_size;
/* return size im MB */
return prom_cp1_size>>20;
}
EXPORT_SYMBOL(prom_get_cp1_size);
void __init
prom_init(void)
void __init prom_init(void)
{
int argc = fw_arg0;
char **argv = (char **) fw_arg1;
char **envp = (char **) fw_arg2;
int memsize = 16;
int memsize = 16; /* assume 16M as default */
int i;
mips_machtype = MACH_INFINEON_IFXMIPS;
if (argc) {
argv = (char**)KSEG1ADDR((unsigned long)argv);
arcs_cmdline[0] = '\0';
for (i = 1; i < argc; i++)
{
char *a = (char *)KSEG1ADDR(argv[i]);
if(!a)
if (!argv[i])
continue;
if(strlen(arcs_cmdline) + strlen(a + 1) >= sizeof(arcs_cmdline))
/* for voice cpu on Twinpass/Danube */
if (cpu_data[0].cputype == CPU_24K)
if (!strncmp(a, "cp1_size=", 9)) {
prom_cp1_size = memparse(a + 9, &a);
continue;
}
if (strlen(arcs_cmdline) + strlen(a + 1) >= sizeof(arcs_cmdline)) {
prom_printf("cmdline overflow, skipping: %s\n", a);
break;
}
strcat(arcs_cmdline, a);
strcat(arcs_cmdline, " ");
}
if (!*arcs_cmdline)
strcpy(&(arcs_cmdline[0]),
"console=ttyS0,115200 rootfstype=squashfs,jffs2 init=/etc/preinit");
}
envp = (char**)KSEG1ADDR((unsigned long)envp);
while(*envp)
{
@ -130,16 +142,16 @@ prom_init(void)
envp++;
}
prom_cp1_size = 2;
memsize -= prom_cp1_size;
prom_cp1_base = (unsigned int*)(0xA0000000 + (memsize * 1024 * 1024));
prom_printf("Using %dMB Ram and reserving %dMB for cp1\n", memsize, prom_cp1_size);
memsize *= 1024 * 1024;
if(!*arcs_cmdline)
strcpy(&(arcs_cmdline[0]),
"console=ttyS0,115200 rootfstype=squashfs,jffs2 init=/etc/preinit");
/* only on Twinpass/Danube a second CPU is used for Voice */
if ((cpu_data[0].cputype == CPU_24K) && (prom_cp1_size)) {
memsize -= prom_cp1_size;
prom_cp1_base = (unsigned int*)KSEG1ADDR(memsize);
prom_printf("Using %dMB Ram and reserving %dMB for cp1\n",
memsize>>20, prom_cp1_size>>20);
}
add_memory_region(0x00000000, memsize, BOOT_MEM_RAM);
}

12
target/linux/ifxmips/files/arch/mips/ifxmips/reset.c
View File

@ -23,8 +23,7 @@
#include <asm/io.h>
#include <asm/ifxmips/ifxmips.h>
static void
ifxmips_machine_restart(char *command)
static void ifxmips_machine_restart(char *command)
{
printk(KERN_NOTICE "System restart\n");
local_irq_disable();
@ -33,24 +32,21 @@ ifxmips_machine_restart(char *command)
for(;;);
}
static void
ifxmips_machine_halt(void)
static void ifxmips_machine_halt(void)
{
printk(KERN_NOTICE "System halted.\n");
local_irq_disable();
for(;;);
}
static void
ifxmips_machine_power_off(void)
static void ifxmips_machine_power_off(void)
{
printk (KERN_NOTICE "Please turn off the power now.\n");
local_irq_disable();
for(;;);
}
void
ifxmips_reboot_setup(void)
void ifxmips_reboot_setup(void)
{
_machine_restart = ifxmips_machine_restart;
_machine_halt = ifxmips_machine_halt;

23
target/linux/ifxmips/files/arch/mips/ifxmips/setup.c
View File

@ -21,7 +21,7 @@
#include <asm/time.h>
#include <asm/traps.h>
#include <asm/cpu.h>
#include <linux/cpu.h>
#include <asm/irq.h>
#include <asm/bootinfo.h>
#include <asm/ifxmips/ifxmips.h>
@ -33,17 +33,18 @@
static unsigned int r4k_offset;
static unsigned int r4k_cur;
/* required in arch/mips/kernel/kspd.c */
unsigned long cpu_khz;
extern void ifxmips_reboot_setup(void);
unsigned int
ifxmips_get_cpu_ver(void)
unsigned int ifxmips_get_cpu_ver(void)
{
return (ifxmips_r32(IFXMIPS_MPS_CHIPID) & 0xF0000000) >> 28;
}
EXPORT_SYMBOL(ifxmips_get_cpu_ver);
static __inline__ u32
ifxmips_get_counter_resolution(void)
static inline u32 ifxmips_get_counter_resolution(void)
{
u32 res;
__asm__ __volatile__(
@ -60,23 +61,23 @@ ifxmips_get_counter_resolution(void)
return res;
}
void __init
plat_time_init(void)
void __init plat_time_init(void)
{
mips_hpt_frequency = ifxmips_get_cpu_hz() / ifxmips_get_counter_resolution();
r4k_cur = (read_c0_count() + r4k_offset);
write_c0_compare(r4k_cur);
ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_GPT | IFXMIPS_PMU_PWDCR_FPI);
ifxmips_w32(0x100, IFXMIPS_GPTU_GPT_CLC); // set clock divider to 1
ifxmips_w32(0x100, IFXMIPS_GPTU_GPT_CLC); /* set clock divider to 1 */
cpu_khz = ifxmips_get_cpu_hz();
}
void __init
plat_mem_setup(void)
void __init plat_mem_setup(void)
{
u32 status;
prom_printf("This %s has a cpu rev of 0x%X\n", get_system_type(), ifxmips_get_cpu_ver());
prom_printf("This %s system has a cpu rev of %d\n", get_system_type(), ifxmips_get_cpu_ver());
/* make sure to have no "reverse endian" for user mode! */
status = read_c0_status();
status &= (~(1<<25));
write_c0_status(status);

2
target/linux/ifxmips/files/arch/mips/ifxmips/timer.c
View File

@ -369,7 +369,7 @@ ifxmips_request_timer(unsigned int timer, unsigned int flag, unsigned long value
if (TIMER_FLAG_MASK_HANDLE (flag) != TIMER_FLAG_NO_HANDLE) {
if (TIMER_FLAG_MASK_HANDLE (flag) == TIMER_FLAG_SIGNAL)
timer_dev.timer[timer - FIRST_TIMER].arg1 =
(unsigned long) find_task_by_pid ((int) arg1);
(unsigned long) find_task_by_vpid ((int) arg1);
irnen_reg = 1 << (timer - FIRST_TIMER);

184
target/linux/ifxmips/files/drivers/char/ifxmips_eeprom.c
View File

@ -43,23 +43,23 @@
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <asm/bitops.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/uaccess.h>
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <asm/system.h>
#include <asm/ifxmips/ifxmips.h>
#include <asm/ifxmips/ifxmips_irq.h>
#include <asm/ifxmips/ifx_ssc_defines.h>
#include <asm/ifxmips/ifx_ssc.h>
/* allow the user to set the major device number */
static int ifxmips_eeprom_maj = 0;
static int ifxmips_eeprom_maj;
extern int ifx_ssc_init(void);
extern int ifx_ssc_open(struct inode *inode, struct file *filp);
@ -88,8 +88,7 @@ extern int ifx_ssc_rx (char *rx_buf, unsigned int rx_len);
#define EEPROM_PAGE_SIZE 4
#define EEPROM_SIZE 512
static int
eeprom_rdsr (void)
static int eeprom_rdsr(void)
{
int ret = 0;
unsigned char cmd = EEPROM_RDSR;
@ -108,15 +107,13 @@ eeprom_rdsr (void)
return ret;
}
void
eeprom_wip_over (void)
void eeprom_wip_over(void)
{
while (eeprom_rdsr())
printk("waiting for eeprom\n");
printk(KERN_INFO "waiting for eeprom\n");
}
static int
eeprom_wren (void)
static int eeprom_wren(void)
{
unsigned char cmd = EEPROM_WREN;
int ret = 0;
@ -136,8 +133,7 @@ eeprom_wren (void)
return ret;
}
static int
eeprom_wrsr (void)
static int eeprom_wrsr(void)
{
int ret = 0;
unsigned char cmd[2];
@ -146,9 +142,8 @@ eeprom_wrsr (void)
cmd[0] = EEPROM_WRSR;
cmd[1] = 0;
if ((ret = eeprom_wren()))
{
printk ("eeprom_wren fails\n");
if ((ret = eeprom_wren())) {
printk(KERN_ERR "eeprom_wren fails\n");
goto out1;
}
@ -178,16 +173,14 @@ out1:
return ret;
}
static int
eeprom_read (unsigned int addr, unsigned char *buf, unsigned int len)
static int eeprom_read(unsigned int addr, unsigned char *buf, unsigned int len)
{
int ret = 0;
unsigned char write_buf[2];
unsigned int eff = 0;
unsigned long flag;
while (1)
{
while (1) {
eeprom_wip_over();
eff = EEPROM_PAGE_SIZE - (addr % EEPROM_PAGE_SIZE);
eff = (eff < len) ? eff : len;
@ -199,9 +192,9 @@ eeprom_read (unsigned int addr, unsigned char *buf, unsigned int len)
write_buf[0] = EEPROM_READ | ((unsigned char)((addr & 0x100) >> 5));
write_buf[1] = (addr & 0xff);
if ((ret = ifx_ssc_txrx (write_buf, 2, buf, eff)) != eff)
{
printk("ssc_txrx fails %d\n", ret);
ret = ifx_ssc_txrx(write_buf, 2, buf, eff);
if (ret != eff) {
printk(KERN_ERR "ssc_txrx fails %d\n", ret);
ifx_ssc_cs_high(EEPROM_CS);
goto out;
}
@ -210,7 +203,8 @@ eeprom_read (unsigned int addr, unsigned char *buf, unsigned int len)
len -= ret;
addr += ret;
if ((ret = ifx_ssc_cs_high(EEPROM_CS)))
ret = ifx_ssc_cs_high(EEPROM_CS);
if (ret)
goto out;
local_irq_restore(flag);
@ -225,8 +219,7 @@ out2:
return ret;
}
static int
eeprom_write (unsigned int addr, unsigned char *buf, unsigned int len)
static int eeprom_write(unsigned int addr, unsigned char *buf, unsigned int len)
{
int ret = 0;
unsigned int eff = 0;
@ -234,13 +227,11 @@ eeprom_write (unsigned int addr, unsigned char *buf, unsigned int len)
int i;
unsigned char rx_buf[EEPROM_PAGE_SIZE];
while (1)
{
while (1) {
eeprom_wip_over();
if ((ret = eeprom_wren()))
{
printk("eeprom_wren fails\n");
if ((ret = eeprom_wren())) {
printk(KERN_ERR "eeprom_wren fails\n");
goto out;
}
@ -250,7 +241,7 @@ eeprom_write (unsigned int addr, unsigned char *buf, unsigned int len)
eff = EEPROM_PAGE_SIZE - (addr % EEPROM_PAGE_SIZE);
eff = (eff < len) ? eff : len;
printk("EEPROM Write:\n");
printk(KERN_INFO "EEPROM Write:\n");
for (i = 0; i < eff; i++) {
printk("%2x ", buf[i]);
if ((i % 16) == 15)
@ -261,16 +252,14 @@ eeprom_write (unsigned int addr, unsigned char *buf, unsigned int len)
if ((ret = ifx_ssc_cs_low(EEPROM_CS)))
goto out;
if ((ret = ifx_ssc_tx (write_buf, 2)) < 0)
{
printk("ssc_tx fails %d\n", ret);
if ((ret = ifx_ssc_tx(write_buf, 2)) < 0) {
printk(KERN_ERR "ssc_tx fails %d\n", ret);
ifx_ssc_cs_high(EEPROM_CS);
goto out;
}
if ((ret = ifx_ssc_tx (buf, eff)) != eff)
{
printk("ssc_tx fails %d\n", ret);
if ((ret = ifx_ssc_tx(buf, eff)) != eff) {
printk(KERN_ERR "ssc_tx fails %d\n", ret);
ifx_ssc_cs_high(EEPROM_CS);
goto out;
}
@ -282,12 +271,10 @@ eeprom_write (unsigned int addr, unsigned char *buf, unsigned int len)
if ((ret = ifx_ssc_cs_high(EEPROM_CS)))
goto out;
printk ("<==");
printk(KERN_INFO "<==");
eeprom_read((addr - eff), rx_buf, eff);
for (i = 0; i < eff; i++)
{
printk("[%x]", rx_buf[i]);
}
printk("\n");
if (len <= 0)
@ -298,81 +285,71 @@ out:
return ret;
}
int
ifxmips_eeprom_open (struct inode *inode, struct file *filp)
int ifxmips_eeprom_open(struct inode *inode, struct file *filp)
{
filp->f_pos = 0;
return 0;
}
int
ifxmips_eeprom_close (struct inode *inode, struct file *filp)
int ifxmips_eeprom_close(struct inode *inode, struct file *filp)
{
return 0;
}
int
ifxmips_eeprom_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigned long data)
int ifxmips_eeprom_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long data)
{
return 0;
}
ssize_t
ifxmips_eeprom_read (char *buf, size_t len, unsigned int addr)
ssize_t ifxmips_eeprom_read(char *buf, size_t len, unsigned int addr)
{
int ret = 0;
unsigned int data;
printk("addr:=%d\n", addr);
printk("len:=%d\n", len);
printk(KERN_INFO "addr:=%d\n", addr);
printk(KERN_INFO "len:=%d\n", len);
if ((addr + len) > EEPROM_SIZE)
{
printk("invalid len\n");
if ((addr + len) > EEPROM_SIZE) {
printk(KERN_ERR "invalid len\n");
addr = 0;
len = EEPROM_SIZE / 2;
}
if ((ret = ifx_ssc_open((struct inode *) 0, NULL)))
{
printk("ifxmips_eeprom_open fails\n");
if ((ret = ifx_ssc_open((struct inode *)0, NULL))) {
printk(KERN_ERR "ifxmips_ssc_open fails\n");
goto out;
}
data = (unsigned int)IFX_SSC_MODE_RXTX;
if ((ret = ifx_ssc_ioctl((struct inode *) 0, NULL, IFX_SSC_RXTX_MODE_SET, (unsigned long) &data)))
{
printk("set RXTX mode fails\n");
if ((ret = ifx_ssc_ioctl((struct inode *)0, NULL, IFX_SSC_RXTX_MODE_SET, (unsigned long) &data))) {
printk(KERN_ERR "set RXTX mode fails\n");
goto out;
}
if ((ret = eeprom_wrsr()))
{
printk("EEPROM reset fails\n");
if ((ret = eeprom_wrsr())) {
printk(KERN_ERR "EEPROM reset fails\n");
goto out;
}
if ((ret = eeprom_read(addr, buf, len)))
{
printk("eeprom read fails\n");
if ((ret = eeprom_read(addr, buf, len))) {
printk(KERN_ERR "eeprom read fails\n");
goto out;
}
out:
if (ifx_ssc_close((struct inode *)0, NULL))
printk("ifxmips_eeprom_close fails\n");
printk(KERN_ERR "ifxmips_ssc_close fails\n");
return len;
}
EXPORT_SYMBOL(ifxmips_eeprom_read);
static ssize_t
ifxmips_eeprom_fops_read (struct file *filp, char *ubuf, size_t len, loff_t * off)
static ssize_t ifxmips_eeprom_fops_read(struct file *filp, char *ubuf, size_t len, loff_t *off)
{
int ret = 0;
unsigned char ssc_rx_buf[EEPROM_SIZE];
long flag;
unsigned long flag;
if (*off >= EEPROM_SIZE)
return 0;
@ -385,15 +362,13 @@ ifxmips_eeprom_fops_read (struct file *filp, char *ubuf, size_t len, loff_t * of
local_irq_save(flag);
if ((ret = ifxmips_eeprom_read(ssc_rx_buf, len, *off)) < 0)
{
printk("read fails, err=%x\n", ret);
if ((ret = ifxmips_eeprom_read(ssc_rx_buf, len, *off)) < 0) {
printk(KERN_ERR "read fails, err=%x\n", ret);
local_irq_restore(flag);
return ret;
}
if (copy_to_user((void*)ubuf, ssc_rx_buf, ret) != 0)
{
if (copy_to_user((void *)ubuf, ssc_rx_buf, ret) != 0) {
local_irq_restore(flag);
ret = -EFAULT;
}
@ -404,46 +379,42 @@ ifxmips_eeprom_fops_read (struct file *filp, char *ubuf, size_t len, loff_t * of
return len;
}
ssize_t
ifxmips_eeprom_write (char *buf, size_t len, unsigned int addr)
ssize_t ifxmips_eeprom_write(char *buf, size_t len, unsigned int addr)
{
int ret = 0;
unsigned int data;
if ((ret = ifx_ssc_open ((struct inode *) 0, NULL)))
{
printk ("ifxmips_eeprom_open fails\n");
if ((ret = ifx_ssc_open((struct inode *)0, NULL))) {
printk(KERN_ERR "ifxmips_ssc_open fails\n");
goto out;
}
data = (unsigned int) IFX_SSC_MODE_RXTX;
if ((ret = ifx_ssc_ioctl ((struct inode *) 0, NULL, IFX_SSC_RXTX_MODE_SET, (unsigned long) &data)))
{
printk ("set RXTX mode fails\n");
if ((ret = ifx_ssc_ioctl((struct inode *)0, NULL, IFX_SSC_RXTX_MODE_SET, (unsigned long) &data))) {
printk(KERN_ERR "set RXTX mode fails\n");
goto out;
}
if ((ret = eeprom_wrsr())) {
printk ("EEPROM reset fails\n");
printk(KERN_ERR "EEPROM reset fails\n");
goto out;
}
if ((ret = eeprom_write(addr, buf, len))) {
printk ("eeprom write fails\n");
printk(KERN_ERR "eeprom write fails\n");
goto out;
}
out:
if (ifx_ssc_close((struct inode *)0, NULL))
printk ("ifxmips_eeprom_close fails\n");
printk(KERN_ERR "ifxmips_ssc_close fails\n");
return ret;
}
EXPORT_SYMBOL(ifxmips_eeprom_write);
static ssize_t
ifxmips_eeprom_fops_write (struct file *filp, const char *ubuf, size_t len, loff_t * off)
static ssize_t ifxmips_eeprom_fops_write(struct file *filp, const char *ubuf, size_t len, loff_t *off)
{
int ret = 0;
unsigned char ssc_tx_buf[EEPROM_SIZE];
@ -465,8 +436,7 @@ ifxmips_eeprom_fops_write (struct file *filp, const char *ubuf, size_t len, loff
return ret;
}
loff_t
ifxmips_eeprom_llseek (struct file * filp, loff_t off, int whence)
loff_t ifxmips_eeprom_llseek(struct file *filp, loff_t off, int whence)
{
loff_t newpos;
switch (whence) {
@ -491,41 +461,38 @@ ifxmips_eeprom_llseek (struct file * filp, loff_t off, int whence)
}
static struct file_operations ifxmips_eeprom_fops = {
owner:THIS_MODULE,
llseek:ifxmips_eeprom_llseek,
read:ifxmips_eeprom_fops_read,
write:ifxmips_eeprom_fops_write,
ioctl:ifxmips_eeprom_ioctl,
open:ifxmips_eeprom_open,
release:ifxmips_eeprom_close,
.owner = THIS_MODULE,
.llseek = ifxmips_eeprom_llseek,
.read = ifxmips_eeprom_fops_read,
.write = ifxmips_eeprom_fops_write,
.ioctl = ifxmips_eeprom_ioctl,
.open = ifxmips_eeprom_open,
.release = ifxmips_eeprom_close,
};
int __init
ifxmips_eeprom_init (void)
int __init ifxmips_eeprom_init(void)
{
int ret = 0;
ifxmips_eeprom_maj = register_chrdev(0, "eeprom", &ifxmips_eeprom_fops);
if (ifxmips_eeprom_maj < 0)
{
printk("failed to register eeprom device\n");
if (ifxmips_eeprom_maj < 0) {
printk(KERN_ERR "failed to register eeprom device\n");
ret = -EINVAL;
goto out;
}
printk("ifxmips_eeprom : /dev/eeprom mayor %d\n", ifxmips_eeprom_maj);
printk(KERN_INFO "ifxmips_eeprom : /dev/eeprom mayor %d\n", ifxmips_eeprom_maj);
out:
return ret;
}
void __exit
ifxmips_eeprom_cleanup_module (void)
void __exit ifxmips_eeprom_cleanup_module(void)
{
/*if (unregister_chrdev(ifxmips_eeprom_maj, "eeprom")) {
printk ("Unable to unregister major %d for the EEPROM\n",
printk(KERN_ERR "Unable to unregister major %d for the EEPROM\n",
maj);
}*/
}
@ -538,4 +505,3 @@ MODULE_AUTHOR ("Peng Liu");
MODULE_DESCRIPTION("IFAP EEPROM driver");
MODULE_SUPPORTED_DEVICE("ifxmips_eeprom");

381
target/linux/ifxmips/files/drivers/char/ifxmips_ssc.c
View File

@ -18,12 +18,14 @@
*
*/
// ### TO DO: general issues:
// - power management
// - interrupt handling (direct/indirect)
// - pin/mux-handling (just overall concept due to project dependency)
// - multiple instances capability
// - slave functionality
/*
### TO DO: general issues:
- power management
- interrupt handling (direct/indirect)
- pin/mux-handling (just overall concept due to project dependency)
- multiple instances capability
- slave functionality
*/
#include <linux/module.h>
#include <linux/errno.h>
@ -42,24 +44,23 @@
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <asm/bitops.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/uaccess.h>
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <asm/system.h>
#include <asm/ifxmips/ifxmips.h>
#include <asm/ifxmips/ifxmips_irq.h>
#include <asm/ifxmips/ifx_ssc_defines.h>
#include <asm/ifxmips/ifx_ssc.h>
/* allow the user to set the major device number */
static int maj = 0;
static int maj;
/*
* This is the per-channel data structure containing pointers, flags
@ -75,22 +76,19 @@ static void tx_int (struct ifx_ssc_port *);
extern unsigned int ifxmips_get_fpi_hz(void);
extern void ifxmips_mask_and_ack_irq(unsigned int irq_nr);
static inline unsigned int
ifx_ssc_get_kernel_clk (struct ifx_ssc_port *info)
static inline unsigned int ifx_ssc_get_kernel_clk(struct ifx_ssc_port *info)
{
unsigned int rmc;
rmc = (ifxmips_r32(IFXMIPS_SSC_CLC) & IFX_CLC_RUN_DIVIDER_MASK) >> IFX_CLC_RUN_DIVIDER_OFFSET;
if (rmc == 0)
{
if (rmc == 0) {
printk("ifx_ssc_get_kernel_clk rmc==0 \n");
return 0;
}
return ifxmips_get_fpi_hz() / rmc;
}
inline static void
rx_int (struct ifx_ssc_port *info)
static inline void rx_int(struct ifx_ssc_port *info)
{
int fifo_fill_lev, bytes_in_buf, i;
unsigned long tmp_val;
@ -99,7 +97,7 @@ rx_int (struct ifx_ssc_port *info)
/* number of words waiting in the RX FIFO */
fifo_fill_lev = (ifxmips_r32(IFXMIPS_SSC_FSTAT) & IFX_SSC_FSTAT_RECEIVED_WORDS_MASK) >> IFX_SSC_FSTAT_RECEIVED_WORDS_OFFSET;
bytes_in_buf = info->rxbuf_end - info->rxbuf_ptr;
// transfer with 32 bits per entry
/* transfer with 32 bits per entry */
while ((bytes_in_buf >= 4) && (fifo_fill_lev > 0)) {
tmp_ptr = (unsigned long *)info->rxbuf_ptr;
*tmp_ptr = ifxmips_r32(IFXMIPS_SSC_RB);
@ -109,7 +107,7 @@ rx_int (struct ifx_ssc_port *info)
bytes_in_buf -= 4;
}
// now do the rest as mentioned in STATE.RXBV
/* now do the rest as mentioned in STATE.RXBV */
while ((bytes_in_buf > 0) && (fifo_fill_lev > 0)) {
rx_valid_cnt = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_RX_BYTE_VALID_MASK) >> IFX_SSC_STATE_RX_BYTE_VALID_OFFSET;
if (rx_valid_cnt == 0)
@ -120,8 +118,7 @@ rx_int (struct ifx_ssc_port *info)
tmp_val = ifxmips_r32(IFXMIPS_SSC_RB);
for (i = 0; i < rx_valid_cnt; i++)
{
for (i = 0; i < rx_valid_cnt; i++) {
*info->rxbuf_ptr = (tmp_val >> (8 * (rx_valid_cnt - i - 1))) & 0xff;
bytes_in_buf--;
info->rxbuf_ptr++;
@ -129,13 +126,11 @@ rx_int (struct ifx_ssc_port *info)
info->stats.rxBytes += rx_valid_cnt;
}
// check if transfer is complete
if (info->rxbuf_ptr >= info->rxbuf_end)
{
/* check if transfer is complete */
if (info->rxbuf_ptr >= info->rxbuf_end) {
disable_irq(IFXMIPS_SSC_RIR);
wake_up_interruptible(&info->rwait);
} else if ((info->opts.modeRxTx == IFX_SSC_MODE_RX) && (ifxmips_r32(IFXMIPS_SSC_RXCNT) == 0))
{
} else if ((info->opts.modeRxTx == IFX_SSC_MODE_RX) && (ifxmips_r32(IFXMIPS_SSC_RXCNT) == 0)) {
if (info->rxbuf_end - info->rxbuf_ptr < IFX_SSC_RXREQ_BLOCK_SIZE)
ifxmips_w32((info->rxbuf_end - info->rxbuf_ptr) << IFX_SSC_RXREQ_RXCOUNT_OFFSET, IFXMIPS_SSC_RXREQ);
else
@ -143,8 +138,7 @@ rx_int (struct ifx_ssc_port *info)
}
}
inline static void
tx_int (struct ifx_ssc_port *info)
static inline void tx_int(struct ifx_ssc_port *info)
{
int fifo_space, fill, i;
@ -159,9 +153,8 @@ tx_int (struct ifx_ssc_port *info)
if (fill > fifo_space * 4)
fill = fifo_space * 4;
for (i = 0; i < fill / 4; i++)
{
// at first 32 bit access
for (i = 0; i < fill / 4; i++) {
/* at first 32 bit access */
ifxmips_w32(*(UINT32 *)info->txbuf_ptr, IFXMIPS_SSC_TB);
info->txbuf_ptr += 4;
}
@ -169,9 +162,8 @@ tx_int (struct ifx_ssc_port *info)
fifo_space -= fill / 4;
info->stats.txBytes += fill & ~0x3;
fill &= 0x3;
if ((fifo_space > 0) & (fill > 1))
{
// trailing 16 bit access
if ((fifo_space > 0) & (fill > 1)) {
/* trailing 16 bit access */
WRITE_PERIPHERAL_REGISTER_16(*(UINT16 *)info->txbuf_ptr, info->mapbase + IFX_SSC_TB);
info->txbuf_ptr += 2;
info->stats.txBytes += 2;
@ -179,17 +171,15 @@ tx_int (struct ifx_ssc_port *info)
fill -= 2;
}
if ((fifo_space > 0) & (fill > 0))
{
// trailing 8 bit access
if ((fifo_space > 0) & (fill > 0)) {
/* trailing 8 bit access */
WRITE_PERIPHERAL_REGISTER_8(*(UINT8 *)info->txbuf_ptr, info->mapbase + IFX_SSC_TB);
info->txbuf_ptr++;
info->stats.txBytes++;
}
// check if transmission complete
if (info->txbuf_ptr >= info->txbuf_end)
{
/* check if transmission complete */
if (info->txbuf_ptr >= info->txbuf_end) {
disable_irq(IFXMIPS_SSC_TIR);
kfree(info->txbuf);
info->txbuf = NULL;
@ -197,8 +187,7 @@ tx_int (struct ifx_ssc_port *info)
}
irqreturn_t
ifx_ssc_rx_int (int irq, void *dev_id)
irqreturn_t ifx_ssc_rx_int(int irq, void *dev_id)
{
struct ifx_ssc_port *info = (struct ifx_ssc_port *)dev_id;
rx_int(info);
@ -206,8 +195,7 @@ ifx_ssc_rx_int (int irq, void *dev_id)
return IRQ_HANDLED;
}
irqreturn_t
ifx_ssc_tx_int (int irq, void *dev_id)
irqreturn_t ifx_ssc_tx_int(int irq, void *dev_id)
{
struct ifx_ssc_port *info = (struct ifx_ssc_port *)dev_id;
tx_int(info);
@ -215,8 +203,7 @@ ifx_ssc_tx_int (int irq, void *dev_id)
return IRQ_HANDLED;
}
irqreturn_t
ifx_ssc_err_int (int irq, void *dev_id)
irqreturn_t ifx_ssc_err_int(int irq, void *dev_id)
{
struct ifx_ssc_port *info = (struct ifx_ssc_port *)dev_id;
unsigned int state;
@ -259,8 +246,7 @@ ifx_ssc_err_int (int irq, void *dev_id)
return IRQ_HANDLED;
}
static void
ifx_ssc_abort (struct ifx_ssc_port *info)
static void ifx_ssc_abort(struct ifx_ssc_port *info)
{
unsigned long flags;
bool enabled;
@ -273,35 +259,35 @@ ifx_ssc_abort (struct ifx_ssc_port *info)
local_irq_restore(flags);
// disable SSC (also aborts a receive request!)
// ### TO DO: Perhaps it's better to abort after the receiption of a
// complete word. The disable cuts the transmission immediatly and
// releases the chip selects. This could result in unpredictable
// behavior of connected external devices!
/* disable SSC(also aborts a receive request!) */
/* ### TO DO: Perhaps it's better to abort after the receiption of a
complete word. The disable cuts the transmission immediatly and
releases the chip selects. This could result in unpredictable
behavior of connected external devices!
*/
enabled = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED) != 0;
ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
// flush fifos
/* flush fifos */
ifxmips_w32(IFX_SSC_XFCON_FIFO_FLUSH, IFXMIPS_SSC_TXFCON);
ifxmips_w32(IFX_SSC_XFCON_FIFO_FLUSH, IFXMIPS_SSC_RXFCON);
// free txbuf
if (info->txbuf != NULL)
{
/* free txbuf */
if (info->txbuf != NULL) {
kfree(info->txbuf);
info->txbuf = NULL;
}
// wakeup read process
/* wakeup read process */
if (info->rxbuf != NULL)
wake_up_interruptible(&info->rwait);
// clear pending int's
/* clear pending int's */
ifxmips_mask_and_ack_irq(IFXMIPS_SSC_RIR);
ifxmips_mask_and_ack_irq(IFXMIPS_SSC_TIR);
ifxmips_mask_and_ack_irq(IFXMIPS_SSC_EIR);
// clear error flags
/* clear error flags */
ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ALL_ERROR, IFXMIPS_SSC_WHBSTATE);
if (enabled)
@ -313,8 +299,7 @@ ifx_ssc_abort (struct ifx_ssc_port *info)
* This routine is called whenever a port is opened. It enforces
* exclusive opening of a port and enables interrupts, etc.
*/
int
ifx_ssc_open (struct inode *inode, struct file *filp)
int ifx_ssc_open(struct inode *inode, struct file *filp)
{
struct ifx_ssc_port *info;
int line;
@ -323,9 +308,8 @@ ifx_ssc_open (struct inode *inode, struct file *filp)
if ((inode == (struct inode *)0) || (inode == (struct inode *)1)) {
from_kernel = 1;
line = (int) inode;
} else {
} else
line = MINOR(filp->f_dentry->d_inode->i_rdev);
}
/* don't open more minor devices than we can support */
if (line < 0 || line >= PORT_CNT)
@ -353,7 +337,7 @@ ifx_ssc_open (struct inode *inode, struct file *filp)
/* clear all error bits */
ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ALL_ERROR, IFXMIPS_SSC_WHBSTATE);
// clear pending interrupts
/* clear pending interrupts */
ifxmips_mask_and_ack_irq(IFXMIPS_SSC_RIR);
ifxmips_mask_and_ack_irq(IFXMIPS_SSC_TIR);
ifxmips_mask_and_ack_irq(IFXMIPS_SSC_EIR);
@ -364,8 +348,7 @@ ifx_ssc_open (struct inode *inode, struct file *filp)
}
EXPORT_SYMBOL(ifx_ssc_open);
int
ifx_ssc_close (struct inode *inode, struct file *filp)
int ifx_ssc_close(struct inode *inode, struct file *filp)
{
struct ifx_ssc_port *info;
int idx;
@ -392,8 +375,8 @@ ifx_ssc_close (struct inode *inode, struct file *filp)
}
EXPORT_SYMBOL(ifx_ssc_close);
static ssize_t
ifx_ssc_read_helper_poll (struct ifx_ssc_port *info, char *buf, size_t len, int from_kernel)
static ssize_t ifx_ssc_read_helper_poll(struct ifx_ssc_port *info, char *buf,
size_t len, int from_kernel)
{
ssize_t ret_val;
unsigned long flags;
@ -406,8 +389,7 @@ ifx_ssc_read_helper_poll (struct ifx_ssc_port *info, char *buf, size_t len, int
local_irq_restore(flags);
/* Vinetic driver always works in IFX_SSC_MODE_RXTX */
/* TXRX in poll mode */
while (info->rxbuf_ptr < info->rxbuf_end)
{
while (info->rxbuf_ptr < info->rxbuf_end) {
if (info->txbuf_ptr < info->txbuf_end)
tx_int(info);
@ -419,8 +401,8 @@ ifx_ssc_read_helper_poll (struct ifx_ssc_port *info, char *buf, size_t len, int
return ret_val;
}
static ssize_t
ifx_ssc_read_helper (struct ifx_ssc_port *info, char *buf, size_t len, int from_kernel)
static ssize_t ifx_ssc_read_helper(struct ifx_ssc_port *info, char *buf,
size_t len, int from_kernel)
{
ssize_t ret_val;
unsigned long flags;
@ -433,10 +415,8 @@ ifx_ssc_read_helper (struct ifx_ssc_port *info, char *buf, size_t len, int from_
info->rxbuf_ptr = info->rxbuf;
info->rxbuf_end = info->rxbuf + len;
if (info->opts.modeRxTx == IFX_SSC_MODE_RXTX)
{
if ((info->txbuf == NULL) || (info->txbuf != info->txbuf_ptr) || (info->txbuf_end != len + info->txbuf))
{
if (info->opts.modeRxTx == IFX_SSC_MODE_RXTX) {
if ((info->txbuf == NULL) || (info->txbuf != info->txbuf_ptr) || (info->txbuf_end != len + info->txbuf)) {
local_irq_restore(flags);
printk("IFX SSC - %s: write must be called before calling " "read in combined RX/TX!\n", __func__);
return -EFAULT;
@ -470,8 +450,7 @@ ifx_ssc_read_helper (struct ifx_ssc_port *info, char *buf, size_t len, int from_
local_irq_restore(flags);
if (signal_pending (current))
{
if (signal_pending(current)) {
ret_val = -ERESTARTSYS;
goto out;
}
@ -485,11 +464,10 @@ out:
current->state = TASK_RUNNING;
__remove_wait_queue(&info->rwait, &wait);
return (ret_val);
return ret_val;
}
static ssize_t
ifx_ssc_write_helper (struct ifx_ssc_port *info, const char *buf,
static ssize_t ifx_ssc_write_helper(struct ifx_ssc_port *info, const char *buf,
size_t len, int from_kernel)
{
if (info->opts.modeRxTx == IFX_SSC_MODE_RX)
@ -497,20 +475,16 @@ ifx_ssc_write_helper (struct ifx_ssc_port *info, const char *buf,
info->txbuf_ptr = info->txbuf;
info->txbuf_end = len + info->txbuf;
if (info->opts.modeRxTx == IFX_SSC_MODE_TX)
{
if (info->opts.modeRxTx == IFX_SSC_MODE_TX) {
tx_int(info);
if (info->txbuf_ptr < info->txbuf_end)
{
enable_irq(IFXMIPS_SSC_TIR);
}
}
return len;
}
ssize_t
ifx_ssc_kread (int port, char *kbuf, size_t len)
ssize_t ifx_ssc_kread(int port, char *kbuf, size_t len)
{
struct ifx_ssc_port *info;
ssize_t ret_val;
@ -523,15 +497,13 @@ ifx_ssc_kread (int port, char *kbuf, size_t len)
info = &isp[port];
if (info->rxbuf != NULL)
{
if (info->rxbuf != NULL) {
printk("SSC device busy\n");
return -EBUSY;
}
info->rxbuf = kbuf;
if (info->rxbuf == NULL)
{
if (info->rxbuf == NULL) {
printk("SSC device error\n");
return -EINVAL;
}
@ -545,8 +517,7 @@ ifx_ssc_kread (int port, char *kbuf, size_t len)
}
EXPORT_SYMBOL(ifx_ssc_kread);
ssize_t
ifx_ssc_kwrite (int port, const char *kbuf, size_t len)
ssize_t ifx_ssc_kwrite(int port, const char *kbuf, size_t len)
{
struct ifx_ssc_port *info;
ssize_t ret_val;
@ -559,7 +530,7 @@ ifx_ssc_kwrite (int port, const char *kbuf, size_t len)
info = &isp[port];
// check if transmission in progress
/* check if transmission in progress */
if (info->txbuf != NULL)
return -EBUSY;
@ -574,8 +545,7 @@ ifx_ssc_kwrite (int port, const char *kbuf, size_t len)
}
EXPORT_SYMBOL(ifx_ssc_kwrite);
static ssize_t
ifx_ssc_read (struct file *filp, char *ubuf, size_t len, loff_t * off)
static ssize_t ifx_ssc_read(struct file *filp, char *ubuf, size_t len, loff_t *off)
{
ssize_t ret_val;
int idx;
@ -600,18 +570,17 @@ ifx_ssc_read (struct file *filp, char *ubuf, size_t len, loff_t * off)
kfree(info->rxbuf);
info->rxbuf = NULL;
return (ret_val);
return ret_val;
}
static ssize_t
ifx_ssc_write (struct file *filp, const char *ubuf, size_t len, loff_t * off)
static ssize_t ifx_ssc_write(struct file *filp, const char *ubuf, size_t len, loff_t *off)
{
int idx;
struct ifx_ssc_port *info;
int ret_val;
if (len == 0)
return (0);
return 0;
idx = MINOR(filp->f_dentry->d_inode->i_rdev);
info = &isp[idx];
@ -629,17 +598,15 @@ ifx_ssc_write (struct file *filp, const char *ubuf, size_t len, loff_t * off)
else
ret_val = -EFAULT;
if (ret_val < 0)
{
if (ret_val < 0) {
kfree(info->txbuf);
info->txbuf = NULL;
}
return (ret_val);
return ret_val;
}
static struct ifx_ssc_frm_status *
ifx_ssc_frm_status_get (struct ifx_ssc_port *info)
static struct ifx_ssc_frm_status *ifx_ssc_frm_status_get(struct ifx_ssc_port *info)
{
unsigned long tmp;
@ -655,9 +622,7 @@ ifx_ssc_frm_status_get (struct ifx_ssc_port *info)
return &info->frm_status;
}
static struct ifx_ssc_frm_opts *
ifx_ssc_frm_control_get (struct ifx_ssc_port *info)
static struct ifx_ssc_frm_opts *ifx_ssc_frm_control_get(struct ifx_ssc_port *info)
{
unsigned long tmp;
@ -672,8 +637,7 @@ ifx_ssc_frm_control_get (struct ifx_ssc_port *info)
return &info->frm_opts;
}
static int
ifx_ssc_frm_control_set (struct ifx_ssc_port *info)
static int ifx_ssc_frm_control_set(struct ifx_ssc_port *info)
{
unsigned long tmp;
@ -685,12 +649,12 @@ ifx_ssc_frm_control_set (struct ifx_ssc_port *info)
|| (info->frm_opts.IdleClock & ~(IFX_SSC_SFCON_PAUSE_CLOCK_MASK >> IFX_SSC_SFCON_PAUSE_CLOCK_OFFSET)))
return -EINVAL;
// read interrupt bits (they're not changed here)
/* read interrupt bits(they're not changed here) */
tmp = ifxmips_r32(IFXMIPS_SSC_SFCON) &
(IFX_SSC_SFCON_FIR_ENABLE_BEFORE_PAUSE | IFX_SSC_SFCON_FIR_ENABLE_AFTER_PAUSE);
// set all values with respect to it's bit position (for data and pause
// length set N-1)
/* set all values with respect to it's bit position(for data and pause
length set N-1) */
tmp = (info->frm_opts.DataLength - 1) << IFX_SSC_SFCON_DATA_LENGTH_OFFSET;
tmp |= (info->frm_opts.PauseLength - 1) << IFX_SSC_SFCON_PAUSE_LENGTH_OFFSET;
tmp |= info->frm_opts.IdleData << IFX_SSC_SFCON_PAUSE_DATA_OFFSET;
@ -703,8 +667,7 @@ ifx_ssc_frm_control_set (struct ifx_ssc_port *info)
return 0;
}
static int
ifx_ssc_rxtx_mode_set (struct ifx_ssc_port *info, unsigned int val)
static int ifx_ssc_rxtx_mode_set(struct ifx_ssc_port *info, unsigned int val)
{
unsigned long tmp;
@ -722,8 +685,7 @@ ifx_ssc_rxtx_mode_set (struct ifx_ssc_port *info, unsigned int val)
return 0;
}
static int
ifx_ssc_sethwopts (struct ifx_ssc_port *info)
static int ifx_ssc_sethwopts(struct ifx_ssc_port *info)
{
unsigned long flags, bits;
struct ifx_ssc_hwopts *opts = &info->opts;
@ -754,8 +716,7 @@ ifx_ssc_sethwopts (struct ifx_ssc_port *info)
if (opts->clockPolarity)
bits |= IFX_SSC_CON_CLOCK_FALL;
switch (opts->modeRxTx)
{
switch (opts->modeRxTx) {
case IFX_SSC_MODE_TX:
bits |= IFX_SSC_CON_RX_OFF;
break;
@ -772,16 +733,16 @@ ifx_ssc_sethwopts (struct ifx_ssc_port *info)
ifxmips_w32(info->opts.gpoCs << IFX_SSC_WHBGPOSTAT_SETOUT0_POS, IFXMIPS_SSC_WHBGPOSTAT);
//master mode
/* master mode */
if (opts->masterSelect)
ifxmips_w32(IFX_SSC_WHBSTATE_SET_MASTER_SELECT, IFXMIPS_SSC_WHBSTATE);
else
ifxmips_w32(IFX_SSC_WHBSTATE_CLR_MASTER_SELECT, IFXMIPS_SSC_WHBSTATE);
// init serial framing
/* init serial framing */
ifxmips_w32(0, IFXMIPS_SSC_SFCON);
/* set up the port pins */
//check for general requirements to switch (external) pad/pin characteristics
/* check for general requirements to switch(external) pad/pin characteristics */
/* TODO: P0.9 SPI_CS4, P0.10 SPI_CS5, P 0.11 SPI_CS6, because of ASC0 */
/* p0.15 SPI_CS1(EEPROM), P0.13 SPI_CS3, */
/* Set p0.15 to alternative 01, others to 00(In/OUT) */
@ -805,8 +766,7 @@ ifx_ssc_sethwopts (struct ifx_ssc_port *info)
return 0;
}
static int
ifx_ssc_set_baud (struct ifx_ssc_port *info, unsigned int baud)
static int ifx_ssc_set_baud(struct ifx_ssc_port *info, unsigned int baud)
{
unsigned int ifx_ssc_clock;
unsigned int br;
@ -815,8 +775,7 @@ ifx_ssc_set_baud (struct ifx_ssc_port *info, unsigned int baud)
int retval = 0;
ifx_ssc_clock = ifx_ssc_get_kernel_clk(info);
if (ifx_ssc_clock == 0)
{
if (ifx_ssc_clock == 0) {
retval = -EINVAL;
goto out;
}
@ -847,8 +806,7 @@ out:
return retval;
}
static int
ifx_ssc_hwinit (struct ifx_ssc_port *info)
static int ifx_ssc_hwinit(struct ifx_ssc_port *info)
{
unsigned long flags;
bool enabled;
@ -856,14 +814,12 @@ ifx_ssc_hwinit (struct ifx_ssc_port *info)
enabled = (ifxmips_r32(IFXMIPS_SSC_STATE) & IFX_SSC_STATE_IS_ENABLED);
ifxmips_w32(IFX_SSC_WHBSTATE_CLR_ENABLE, IFXMIPS_SSC_WHBSTATE);
if (ifx_ssc_sethwopts (info) < 0)
{
if (ifx_ssc_sethwopts(info) < 0) {
printk("%s: setting the hardware options failed\n", __func__);
return -EINVAL;
}
if (ifx_ssc_set_baud (info, info->baud) < 0)
{
if (ifx_ssc_set_baud(info, info->baud) < 0) {
printk("%s: setting the baud rate failed\n", __func__);
return -EINVAL;
}
@ -883,8 +839,8 @@ ifx_ssc_hwinit (struct ifx_ssc_port *info)
return 0;
}
int
ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigned long data)
int ifx_ssc_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long data)
{
struct ifx_ssc_port *info;
int line, ret_val = 0;
@ -892,21 +848,18 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne
unsigned long tmp;
int from_kernel = 0;
if ((inode == (struct inode *) 0) || (inode == (struct inode *) 1))
{
if ((inode == (struct inode *)0) || (inode == (struct inode *)1)) {
from_kernel = 1;
line = (int) inode;
} else {
} else
line = MINOR(filp->f_dentry->d_inode->i_rdev);
}
if (line < 0 || line >= PORT_CNT)
return -ENXIO;
info = &isp[line];
switch (cmd)
{
switch (cmd) {
case IFX_SSC_STATS_READ:
/* data must be a pointer to a struct ifx_ssc_statistics */
if (from_kernel)
@ -1003,10 +956,9 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne
}
if (tmp > IFX_SSC_MAX_GPO_OUT)
ret_val = -EINVAL;
else {
else
ifxmips_w32(1 << (tmp + IFX_SSC_WHBGPOSTAT_CLROUT0_POS),
IFXMIPS_SSC_WHBGPOSTAT);
}
break;
case IFX_SSC_GPO_OUT_GET:
tmp = ifxmips_r32(IFXMIPS_SSC_GPOSTAT);
@ -1066,9 +1018,8 @@ ifx_ssc_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigne
ret_val = -EFAULT;
break;
}
if (ifx_ssc_hwinit (info) < 0) {
if (ifx_ssc_hwinit(info) < 0)
ret_val = -EIO;
}
break;
case IFX_SSC_HWOPTS_GET:
/* data must be a pointer to a struct ifx_ssc_hwopts */
@ -1097,8 +1048,7 @@ static struct file_operations ifx_ssc_fops = {
.release = ifx_ssc_close,
};
int __init
ifx_ssc_init (void)
int __init ifx_ssc_init(void)
{
struct ifx_ssc_port *info;
int i, nbytes;
@ -1107,26 +1057,24 @@ ifx_ssc_init (void)
ret_val = -ENOMEM;
nbytes = PORT_CNT * sizeof(struct ifx_ssc_port);
isp = (struct ifx_ssc_port*)kmalloc(nbytes, GFP_KERNEL);
isp = kmalloc(nbytes, GFP_KERNEL);
if (isp == NULL)
{
if (isp == NULL) {
printk("%s: no memory for isp\n", __func__);
return (ret_val);
return ret_val;
}
memset(isp, 0, nbytes);
ret_val = -ENXIO;
if ((i = register_chrdev (maj, "ssc", &ifx_ssc_fops)) < 0)
{
i = register_chrdev(maj, "ssc", &ifx_ssc_fops);
if (i < 0) {
printk("Unable to register major %d for the Infineon SSC\n", maj);
if (maj == 0)
{
if (maj == 0) {
goto errout;
} else {
maj = 0;
if ((i = register_chrdev (maj, "ssc", &ifx_ssc_fops)) < 0)
{
i = register_chrdev(maj, "ssc", &ifx_ssc_fops);
if (i < 0) {
printk("Unable to register major %d for the Infineon SSC\n", maj);
goto errout;
}
@ -1161,9 +1109,8 @@ ifx_ssc_init (void)
info->rxbuf = NULL;
info->txbuf = NULL;
/* values specific to SSC1 */
if (i == 0) {
if (i == 0)
info->mapbase = IFXMIPS_SSC_BASE_ADDR;
}
ifxmips_w32(IFX_SSC_DEF_RMC << IFX_CLC_RUN_DIVIDER_OFFSET, IFXMIPS_SSC_CLC);
@ -1171,45 +1118,43 @@ ifx_ssc_init (void)
local_irq_save(flags);
// init serial framing register
/* init serial framing register */
ifxmips_w32(IFX_SSC_DEF_SFCON, IFXMIPS_SSC_SFCON);
ret_val = request_irq(IFXMIPS_SSC_TIR, ifx_ssc_tx_int, IRQF_DISABLED, "ifx_ssc_tx", info);
if (ret_val)
{
if (ret_val) {
printk("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_TIR);
local_irq_restore(flags);
goto errout;
}
ret_val = request_irq(IFXMIPS_SSC_RIR, ifx_ssc_rx_int, IRQF_DISABLED, "ifx_ssc_rx", info);
if (ret_val)
{
if (ret_val) {
printk("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_RIR);
local_irq_restore(flags);
goto irqerr;
}
ret_val = request_irq(IFXMIPS_SSC_EIR, ifx_ssc_err_int, IRQF_DISABLED, "ifx_ssc_err", info);
if (ret_val)
{
if (ret_val) {
printk("%s: unable to get irq %d\n", __func__, IFXMIPS_SSC_EIR);
local_irq_restore(flags);
goto irqerr;
}
ifxmips_w32(IFX_SSC_DEF_IRNEN, IFXMIPS_SSC_IRN);
//enable_irq(IFXMIPS_SSC_TIR);
//enable_irq(IFXMIPS_SSC_RIR);
//enable_irq(IFXMIPS_SSC_EIR);
#if 0
enable_irq(IFXMIPS_SSC_TIR);
enable_irq(IFXMIPS_SSC_RIR);
enable_irq(IFXMIPS_SSC_EIR);
#endif
local_irq_restore(flags);
}
for (i = 0; i < PORT_CNT; i++) {
info = &isp[i];
if (ifx_ssc_hwinit (info) < 0)
{
if (ifx_ssc_hwinit(info) < 0) {
printk("%s: hardware init failed for port %d\n", __func__, i);
goto irqerr;
}
@ -1224,11 +1169,10 @@ irqerr:
free_irq(IFXMIPS_SSC_EIR, &isp[0]);
errout:
kfree(isp);
return (ret_val);
return ret_val;
}
void
ifx_ssc_cleanup_module (void)
void __exit ifx_ssc_cleanup_module(void)
{
int i;
@ -1244,12 +1188,11 @@ ifx_ssc_cleanup_module (void)
module_init(ifx_ssc_init);
module_exit(ifx_ssc_cleanup_module);
inline int
ifx_ssc_cs_low (u32 pin)
inline int ifx_ssc_cs_low(u32 pin)
{
int ret = 0;
if ((ret = ifx_ssc_ioctl ((struct inode *) 0, NULL, IFX_SSC_GPO_OUT_CLR, (unsigned long) &pin)))
ret = ifx_ssc_ioctl((struct inode *)0, NULL, IFX_SSC_GPO_OUT_CLR, (unsigned long) &pin);
if (ret)
printk("clear CS %d fails\n", pin);
wmb();
@ -1257,11 +1200,11 @@ ifx_ssc_cs_low (u32 pin)
}
EXPORT_SYMBOL(ifx_ssc_cs_low);
inline int
ifx_ssc_cs_high (u32 pin)
inline int ifx_ssc_cs_high(u32 pin)
{
int ret = 0;
if ((ret = ifx_ssc_ioctl((struct inode *) 0, NULL, IFX_SSC_GPO_OUT_SET, (unsigned long) &pin)))
ret = ifx_ssc_ioctl((struct inode *)0, NULL, IFX_SSC_GPO_OUT_SET, (unsigned long) &pin);
if (ret)
printk("set CS %d fails\n", pin);
wmb();
@ -1269,8 +1212,7 @@ ifx_ssc_cs_high (u32 pin)
}
EXPORT_SYMBOL(ifx_ssc_cs_high);
static int
ssc_session (char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len)
static int ssc_session(char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len)
{
int ret = 0;
@ -1283,61 +1225,47 @@ ssc_session (char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len)
printk("invalid parameters\n");
ret = -EINVAL;
goto ssc_session_exit;
}
else if (tx_buf == NULL || tx_len == 0) {
} else if (tx_buf == NULL || tx_len == 0) {
if (rx_buf != NULL && rx_len != 0) {
mode = IFX_SSC_MODE_RX;
}
else {
} else {
printk("invalid parameters\n");
ret = -EINVAL;
goto ssc_session_exit;
}
}
else if (rx_buf == NULL || rx_len == 0) {
if (tx_buf != NULL && tx_len != 0) {
} else if (rx_buf == NULL || rx_len == 0) {
if (tx_buf != NULL && tx_len != 0)
mode = IFX_SSC_MODE_TX;
}
else {
printk("invalid parameters\n");
ret = -EINVAL;
goto ssc_session_exit;
}
}
else {
} else
mode = IFX_SSC_MODE_RXTX;
}
if (mode == IFX_SSC_MODE_RXTX) {
if (mode == IFX_SSC_MODE_RXTX)
eff_size = tx_len + rx_len;
}
else if (mode == IFX_SSC_MODE_RX) {
else if (mode == IFX_SSC_MODE_RX)
eff_size = rx_len;
}
else {
else
eff_size = tx_len;
}
//4 bytes alignment, required by driver
/* change by TaiCheng */
//if (in_irq()){
if (1) {
ssc_tx_buf =
(char *) kmalloc (sizeof (char) *
ssc_tx_buf = kmalloc(sizeof(char) *
((eff_size + 3) & (~3)),
GFP_ATOMIC);
ssc_rx_buf =
(char *) kmalloc (sizeof (char) *
ssc_rx_buf = kmalloc(sizeof(char) *
((eff_size + 3) & (~3)),
GFP_ATOMIC);
}
else {
ssc_tx_buf =
(char *) kmalloc (sizeof (char) *
} else {
ssc_tx_buf = kmalloc(sizeof(char) *
((eff_size + 3) & (~3)),
GFP_KERNEL);
ssc_rx_buf =
(char *) kmalloc (sizeof (char) *
ssc_rx_buf = kmalloc(sizeof(char) *
((eff_size + 3) & (~3)),
GFP_KERNEL);
}
@ -1349,15 +1277,13 @@ ssc_session (char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len)
memset((void *)ssc_tx_buf, 0, eff_size);
memset((void *)ssc_rx_buf, 0, eff_size);
if (tx_len > 0) {
if (tx_len > 0)
memcpy(ssc_tx_buf, tx_buf, tx_len);
}
ret = ifx_ssc_kwrite(0, ssc_tx_buf, eff_size);
if (ret > 0) {
ssc_tx_buf = NULL; //should be freed by ifx_ssc_kwrite
}
if (ret > 0)
ssc_tx_buf = NULL; /* should be freed by ifx_ssc_kwrite */
if (ret != eff_size) {
printk("ifx_ssc_write return %d\n", ret);
@ -1371,41 +1297,36 @@ ssc_session (char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len)
memcpy(rx_buf, ssc_rx_buf + tx_len, rx_len);
if (mode == IFX_SSC_MODE_TX) {
if (mode == IFX_SSC_MODE_TX)
ret = tx_len;
}
else {
else
ret = rx_len;
}
ssc_session_exit:
ssc_session_exit:
if (ssc_tx_buf != NULL)
kfree(ssc_tx_buf);
if (ssc_rx_buf != NULL)
kfree(ssc_rx_buf);
if (ret < 0) {
if (ret < 0)
printk("ssc session fails\n");
}
return ret;
}
int
ifx_ssc_txrx (char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len)
int ifx_ssc_txrx(char *tx_buf, u32 tx_len, char *rx_buf, u32 rx_len)
{
return ssc_session(tx_buf, tx_len, rx_buf, rx_len);
}
EXPORT_SYMBOL(ifx_ssc_txrx);
int
ifx_ssc_tx (char *tx_buf, u32 tx_len)
int ifx_ssc_tx(char *tx_buf, u32 tx_len)
{
return ssc_session(tx_buf, tx_len, NULL, 0);
}
EXPORT_SYMBOL(ifx_ssc_tx);
int
ifx_ssc_rx (char *rx_buf, u32 rx_len)
int ifx_ssc_rx(char *rx_buf, u32 rx_len)
{
return ssc_session(NULL, 0, rx_buf, rx_len);
}

48
target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c
View File

@ -25,14 +25,15 @@
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include <linux/uaccess.h>
#include <linux/unistd.h>
#include <linux/errno.h>
#include <linux/leds.h>
#include <linux/delay.h>
#include <asm/ifxmips/ifxmips.h>
#include <asm/ifxmips/ifxmips_gpio.h>
#include <asm/ifxmips/ifxmips_pmu.h>
#include <linux/leds.h>
#include <linux/delay.h>
#define DRVNAME "ifxmips_led"
@ -50,40 +51,35 @@ struct ifxmips_led {
u8 bit;
};
void
ifxmips_led_set (unsigned int led)
void ifxmips_led_set (unsigned int led)
{
led &= 0xffffff;
ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) | led, IFXMIPS_LED_CPU0);
}
EXPORT_SYMBOL(ifxmips_led_set);
void
ifxmips_led_clear (unsigned int led)
void ifxmips_led_clear (unsigned int led)
{
led = ~(led & 0xffffff);
ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CPU0) & led, IFXMIPS_LED_CPU0);
}
EXPORT_SYMBOL(ifxmips_led_clear);
void
ifxmips_led_blink_set (unsigned int led)
void ifxmips_led_blink_set (unsigned int led)
{
led &= 0xffffff;
ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) | led, IFXMIPS_LED_CON0);
}
EXPORT_SYMBOL(ifxmips_led_blink_set);
void
ifxmips_led_blink_clear (unsigned int led)
void ifxmips_led_blink_clear (unsigned int led)
{
led = ~(led & 0xffffff);
ifxmips_w32(ifxmips_r32(IFXMIPS_LED_CON0) & led, IFXMIPS_LED_CON0);
}
EXPORT_SYMBOL(ifxmips_led_blink_clear);
void
ifxmips_ledapi_set(struct led_classdev *led_cdev, enum led_brightness value)
void ifxmips_ledapi_set(struct led_classdev *led_cdev, enum led_brightness value)
{
struct ifxmips_led *led_dev = container_of(led_cdev, struct ifxmips_led, cdev);
@ -93,14 +89,12 @@ ifxmips_ledapi_set(struct led_classdev *led_cdev, enum led_brightness value)
ifxmips_led_clear(1 << led_dev->bit);
}
void
ifxmips_led_setup_gpio (void)
void ifxmips_led_setup_gpio (void)
{
int i = 0;
/* we need to setup pins SH,D,ST (4,5,6) */
for (i = 4; i < 7; i++)
{
for (i = 4; i < 7; i++) {
ifxmips_port_set_altsel0(IFXMIPS_LED_GPIO_PORT, i);
ifxmips_port_clear_altsel1(IFXMIPS_LED_GPIO_PORT, i);
ifxmips_port_set_dir_out(IFXMIPS_LED_GPIO_PORT, i);
@ -108,8 +102,7 @@ ifxmips_led_setup_gpio (void)
}
}
static int
ifxmips_led_probe(struct platform_device *dev)
static int ifxmips_led_probe(struct platform_device *dev)
{
int i = 0;
@ -142,8 +135,7 @@ ifxmips_led_probe(struct platform_device *dev)
/* per default, the leds are turned on */
ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_LED);
for(i = 0; i < IFXMIPS_MAX_LED; i++)
{
for (i = 0; i < IFXMIPS_MAX_LED; i++) {
struct ifxmips_led *tmp = kzalloc(sizeof(struct ifxmips_led), GFP_KERNEL);
tmp->cdev.brightness_set = ifxmips_ledapi_set;
tmp->cdev.name = kmalloc(sizeof("ifxmips:led:00"), GFP_KERNEL);
@ -156,14 +148,12 @@ ifxmips_led_probe(struct platform_device *dev)
return 0;
}
static int
ifxmips_led_remove(struct platform_device *pdev)
static int ifxmips_led_remove(struct platform_device *pdev)
{
return 0;
}
static struct
platform_driver ifxmips_led_driver = {
static struct platform_driver ifxmips_led_driver = {
.probe = ifxmips_led_probe,
.remove = ifxmips_led_remove,
.driver = {
@ -172,8 +162,7 @@ platform_driver ifxmips_led_driver = {
},
};
int __init
ifxmips_led_init (void)
int __init ifxmips_led_init (void)
{
int ret = platform_driver_register(&ifxmips_led_driver);
if (ret)
@ -182,8 +171,7 @@ ifxmips_led_init (void)
return ret;
}
void __exit
ifxmips_led_exit (void)
void __exit ifxmips_led_exit (void)
{
platform_driver_unregister(&ifxmips_led_driver);
}

5
target/linux/ifxmips/files/drivers/mtd/maps/ifxmips.c
View File

@ -26,11 +26,12 @@
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/cfi.h>
#include <linux/magic.h>
#include <linux/platform_device.h>
#include <asm/ifxmips/ifxmips.h>
#include <asm/ifxmips/ifxmips_prom.h>
#include <asm/ifxmips/ifxmips_ebu.h>
#include <linux/magic.h>
#include <linux/platform_device.h>
#ifndef CONFIG_MTD_PARTITIONS
#error Please enable CONFIG_MTD_PARTITIONS

101
target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c
View File

@ -48,8 +48,7 @@ struct ifxmips_mii_priv {
static struct net_device *ifxmips_mii0_dev;
static unsigned char mac_addr[MAX_ADDR_LEN];
void
ifxmips_write_mdio(u32 phy_addr, u32 phy_reg, u16 phy_data)
void ifxmips_write_mdio(u32 phy_addr, u32 phy_reg, u16 phy_data)
{
u32 val = MDIO_ACC_REQUEST |
((phy_addr & MDIO_ACC_ADDR_MASK) << MDIO_ACC_ADDR_OFFSET) |
@ -61,8 +60,7 @@ ifxmips_write_mdio(u32 phy_addr, u32 phy_reg, u16 phy_data)
}
EXPORT_SYMBOL(ifxmips_write_mdio);
unsigned short
ifxmips_read_mdio(u32 phy_addr, u32 phy_reg)
unsigned short ifxmips_read_mdio(u32 phy_addr, u32 phy_reg)
{
u32 val = MDIO_ACC_REQUEST | MDIO_ACC_READ |
((phy_addr & MDIO_ACC_ADDR_MASK) << MDIO_ACC_ADDR_OFFSET) |
@ -70,21 +68,19 @@ ifxmips_read_mdio(u32 phy_addr, u32 phy_reg)
while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST) ;
ifxmips_w32(val, IFXMIPS_PPE32_MDIO_ACC);
while(ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST){};
while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST) ;
val = ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_VAL_MASK;
return val;
}
EXPORT_SYMBOL(ifxmips_read_mdio);
int
ifxmips_ifxmips_mii_open(struct net_device *dev)
int ifxmips_ifxmips_mii_open(struct net_device *dev)
{
struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv;
struct dma_device_info *dma_dev = priv->dma_device;
int i;
for (i = 0; i < dma_dev->max_rx_chan_num; i++)
{
for (i = 0; i < dma_dev->max_rx_chan_num; i++) {
if ((dma_dev->rx_chan[i])->control == IFXMIPS_DMA_CH_ON)
(dma_dev->rx_chan[i])->open(dma_dev->rx_chan[i]);
}
@ -92,8 +88,8 @@ ifxmips_ifxmips_mii_open(struct net_device *dev)
return 0;
}
int
ifxmips_mii_release(struct net_device *dev){
int ifxmips_mii_release(struct net_device *dev)
{
struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv;
struct dma_device_info *dma_dev = priv->dma_device;
int i;
@ -104,8 +100,7 @@ ifxmips_mii_release(struct net_device *dev){
return 0;
}
int
ifxmips_mii_hw_receive(struct net_device* dev,struct dma_device_info* dma_dev)
int ifxmips_mii_hw_receive(struct net_device *dev, struct dma_device_info *dma_dev)
{
struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv;
unsigned char *buf = NULL;
@ -114,22 +109,19 @@ ifxmips_mii_hw_receive(struct net_device* dev,struct dma_device_info* dma_dev)
len = dma_device_read(dma_dev, &buf, (void **)&skb);
if (len >= ETHERNET_PACKET_DMA_BUFFER_SIZE)
{
if (len >= ETHERNET_PACKET_DMA_BUFFER_SIZE) {
printk(KERN_INFO "ifxmips_mii0: packet too large %d\n", len);
goto ifxmips_mii_hw_receive_err_exit;
}
/* remove CRC */
len -= 4;
if (skb == NULL)
{
if (skb == NULL) {
printk(KERN_INFO "ifxmips_mii0: cannot restore pointer\n");
goto ifxmips_mii_hw_receive_err_exit;
}
if (len > (skb->end - skb->tail))
{
if (len > (skb->end - skb->tail)) {
printk(KERN_INFO "ifxmips_mii0: BUG, len:%d end:%p tail:%p\n",
(len+4), skb->end, skb->tail);
goto ifxmips_mii_hw_receive_err_exit;
@ -145,8 +137,7 @@ ifxmips_mii_hw_receive(struct net_device* dev,struct dma_device_info* dma_dev)
return 0;
ifxmips_mii_hw_receive_err_exit:
if (len == 0)
{
if (len == 0) {
if (skb)
dev_kfree_skb_any(skb);
priv->stats.rx_errors++;
@ -157,8 +148,7 @@ ifxmips_mii_hw_receive_err_exit:
}
}
int
ifxmips_mii_hw_tx(char *buf, int len, struct net_device *dev)
int ifxmips_mii_hw_tx(char *buf, int len, struct net_device *dev)
{
int ret = 0;
struct ifxmips_mii_priv *priv = dev->priv;
@ -167,8 +157,7 @@ ifxmips_mii_hw_tx(char *buf, int len, struct net_device *dev)
return ret;
}
int
ifxmips_mii_tx(struct sk_buff *skb, struct net_device *dev)
int ifxmips_mii_tx(struct sk_buff *skb, struct net_device *dev)
{
int len;
char *data;
@ -179,14 +168,13 @@ ifxmips_mii_tx(struct sk_buff *skb, struct net_device *dev)
data = skb->data;
priv->skb = skb;
dev->trans_start = jiffies;
// TODO we got more than 1 dma channel, so we should do something intelligent
// here to select one
/* TODO: we got more than 1 dma channel,
so we should do something intelligent here to select one */
dma_dev->current_tx_chan = 0;
wmb();
if (ifxmips_mii_hw_tx(data, len, dev) != len)
{
if (ifxmips_mii_hw_tx(data, len, dev) != len) {
dev_kfree_skb_any(skb);
priv->stats.tx_errors++;
priv->stats.tx_dropped++;
@ -198,8 +186,7 @@ ifxmips_mii_tx(struct sk_buff *skb, struct net_device *dev)
return 0;
}
void
ifxmips_mii_tx_timeout(struct net_device *dev)
void ifxmips_mii_tx_timeout(struct net_device *dev)
{
int i;
struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv;
@ -211,13 +198,11 @@ ifxmips_mii_tx_timeout(struct net_device *dev)
return;
}
int
dma_intr_handler(struct dma_device_info* dma_dev, int status)
int dma_intr_handler(struct dma_device_info *dma_dev, int status)
{
int i;
switch(status)
{
switch (status) {
case RCV_INT:
ifxmips_mii_hw_receive(ifxmips_mii0_dev, dma_dev);
break;
@ -225,8 +210,7 @@ dma_intr_handler(struct dma_device_info* dma_dev, int status)
case TX_BUF_FULL_INT:
printk(KERN_INFO "ifxmips_mii0: tx buffer full\n");
netif_stop_queue(ifxmips_mii0_dev);
for (i = 0; i < dma_dev->max_tx_chan_num; i++)
{
for (i = 0; i < dma_dev->max_tx_chan_num; i++) {
if ((dma_dev->tx_chan[i])->control == IFXMIPS_DMA_CH_ON)
dma_dev->tx_chan[i]->enable_irq(dma_dev->tx_chan[i]);
}
@ -243,8 +227,7 @@ dma_intr_handler(struct dma_device_info* dma_dev, int status)
return 0;
}
unsigned char*
ifxmips_etop_dma_buffer_alloc(int len, int *byte_offset, void **opt)
unsigned char *ifxmips_etop_dma_buffer_alloc(int len, int *byte_offset, void **opt)
{
unsigned char *buffer = NULL;
struct sk_buff *skb = NULL;
@ -261,13 +244,11 @@ ifxmips_etop_dma_buffer_alloc(int len, int *byte_offset, void **opt)
return buffer;
}
void
ifxmips_etop_dma_buffer_free(unsigned char *dataptr, void *opt)
void ifxmips_etop_dma_buffer_free(unsigned char *dataptr, void *opt)
{
struct sk_buff *skb = NULL;
if (opt == NULL)
{
if (opt == NULL) {
kfree(dataptr);
} else {
skb = (struct sk_buff *)opt;
@ -275,14 +256,12 @@ ifxmips_etop_dma_buffer_free(unsigned char *dataptr, void *opt)
}
}
static struct net_device_stats*
ifxmips_get_stats(struct net_device *dev)
static struct net_device_stats *ifxmips_get_stats(struct net_device *dev)
{
return (struct net_device_stats *)dev->priv;
}
static int
ifxmips_mii_dev_init(struct net_device *dev)
static int ifxmips_mii_dev_init(struct net_device *dev)
{
int i;
struct ifxmips_mii_priv *priv;
@ -307,8 +286,7 @@ ifxmips_mii_dev_init(struct net_device *dev)
priv->dma_device->intr_handler = &dma_intr_handler;
priv->dma_device->max_rx_chan_num = 4;
for (i = 0; i < priv->dma_device->max_rx_chan_num; i++)
{
for (i = 0; i < priv->dma_device->max_rx_chan_num; i++) {
priv->dma_device->rx_chan[i]->packet_size = ETHERNET_PACKET_DMA_BUFFER_SIZE;
priv->dma_device->rx_chan[i]->control = IFXMIPS_DMA_CH_ON;
}
@ -322,16 +300,14 @@ ifxmips_mii_dev_init(struct net_device *dev)
dma_device_register(priv->dma_device);
printk(KERN_INFO "ifxmips_mii0: using mac=");
for (i = 0; i < 6; i++)
{
for (i = 0; i < 6; i++) {
dev->dev_addr[i] = mac_addr[i];
printk("%02X%c", dev->dev_addr[i], (i == 5)?('\n'):(':'));
}
return 0;
}
static void
ifxmips_mii_chip_init(int mode)
static void ifxmips_mii_chip_init(int mode)
{
ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_DMA);
ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_PPE);
@ -345,8 +321,7 @@ ifxmips_mii_chip_init(int mode)
wmb();
}
static int
ifxmips_mii_probe(struct platform_device *dev)
static int ifxmips_mii_probe(struct platform_device *dev)
{
int result = 0;
unsigned char *mac = (unsigned char *)dev->dev.platform_data;
@ -356,8 +331,7 @@ ifxmips_mii_probe(struct platform_device *dev)
strcpy(ifxmips_mii0_dev->name, "eth%d");
ifxmips_mii_chip_init(REV_MII_MODE);
result = register_netdev(ifxmips_mii0_dev);
if (result)
{
if (result) {
printk(KERN_INFO "ifxmips_mii0: error %i registering device \"%s\"\n", result, ifxmips_mii0_dev->name);
goto out;
}
@ -368,8 +342,7 @@ out:
return result;
}
static int
ifxmips_mii_remove(struct platform_device *dev)
static int ifxmips_mii_remove(struct platform_device *dev)
{
struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)ifxmips_mii0_dev->priv;
@ -383,8 +356,7 @@ ifxmips_mii_remove(struct platform_device *dev)
return 0;
}
static struct
platform_driver ifxmips_mii_driver = {
static struct platform_driver ifxmips_mii_driver = {
.probe = ifxmips_mii_probe,
.remove = ifxmips_mii_remove,
.driver = {
@ -393,8 +365,7 @@ platform_driver ifxmips_mii_driver = {
},
};
int __init
ifxmips_mii_init(void)
int __init ifxmips_mii_init(void)
{
int ret = platform_driver_register(&ifxmips_mii_driver);
if (ret)
@ -402,8 +373,7 @@ ifxmips_mii_init(void)
return ret;
}
static void __exit
ifxmips_mii_cleanup(void)
static void __exit ifxmips_mii_cleanup(void)
{
platform_driver_unregister(&ifxmips_mii_driver);
}
@ -414,3 +384,4 @@ module_exit(ifxmips_mii_cleanup);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
MODULE_DESCRIPTION("ethernet map driver for IFXMIPS boards");

226
target/linux/ifxmips/files/drivers/serial/ifxmips_asc.c
View File

@ -42,10 +42,12 @@
#include <linux/sysrq.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/uaccess.h>
#include <linux/bitops.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/bitops.h>
#include <asm/ifxmips/ifxmips.h>
#include <asm/ifxmips/ifxmips_irq.h>
@ -61,14 +63,12 @@ static struct uart_port ifxmipsasc_port[2];
static struct uart_driver ifxmipsasc_reg;
extern unsigned int ifxmips_get_fpi_hz(void);
static void
ifxmipsasc_stop_tx(struct uart_port *port)
static void ifxmipsasc_stop_tx(struct uart_port *port)
{
return;
}
static void
ifxmipsasc_start_tx(struct uart_port *port)
static void ifxmipsasc_start_tx(struct uart_port *port)
{
unsigned long flags;
local_irq_save(flags);
@ -77,26 +77,28 @@ ifxmipsasc_start_tx(struct uart_port *port)
return;
}
static void
ifxmipsasc_stop_rx(struct uart_port *port)
static void ifxmipsasc_stop_rx(struct uart_port *port)
{
ifxmips_w32(ASCWHBSTATE_CLRREN, port->membase + IFXMIPS_ASC_WHBSTATE);
}
static void
ifxmipsasc_enable_ms(struct uart_port *port)
static void ifxmipsasc_enable_ms(struct uart_port *port)
{
}
static void
ifxmipsasc_rx_chars(struct uart_port *port)
#include <linux/version.h>
static void ifxmipsasc_rx_chars(struct uart_port *port)
{
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 26))
struct tty_struct *tty = port->info->port.tty;
#else
struct tty_struct *tty = port->info->tty;
#endif
unsigned int ch = 0, rsr = 0, fifocnt;
fifocnt = ifxmips_r32(port->membase + IFXMIPS_ASC_FSTAT) & ASCFSTAT_RXFFLMASK;
while(fifocnt--)
{
while (fifocnt--) {
u8 flag = TTY_NORMAL;
ch = ifxmips_r32(port->membase + IFXMIPS_ASC_RBUF);
rsr = (ifxmips_r32(port->membase + IFXMIPS_ASC_STATE) & ASCSTATE_ANY) | UART_DUMMY_UER_RX;
@ -107,19 +109,15 @@ ifxmipsasc_rx_chars(struct uart_port *port)
* Note that the error handling code is
* out of the main execution path
*/
if(rsr & ASCSTATE_ANY)
{
if(rsr & ASCSTATE_PE)
{
if (rsr & ASCSTATE_ANY) {
if (rsr & ASCSTATE_PE) {
port->icount.parity++;
ifxmips_w32(ifxmips_r32(port->membase + IFXMIPS_ASC_WHBSTATE) | ASCWHBSTATE_CLRPE, port->membase + IFXMIPS_ASC_WHBSTATE);
} else if(rsr & ASCSTATE_FE)
{
} else if (rsr & ASCSTATE_FE) {
port->icount.frame++;
ifxmips_w32(ifxmips_r32(port->membase + IFXMIPS_ASC_WHBSTATE) | ASCWHBSTATE_CLRFE, port->membase + IFXMIPS_ASC_WHBSTATE);
}
if(rsr & ASCSTATE_ROE)
{
if (rsr & ASCSTATE_ROE) {
port->icount.overrun++;
ifxmips_w32(ifxmips_r32(port->membase + IFXMIPS_ASC_WHBSTATE) | ASCWHBSTATE_CLRROE, port->membase + IFXMIPS_ASC_WHBSTATE);
}
@ -149,21 +147,17 @@ ifxmipsasc_rx_chars(struct uart_port *port)
}
static void
ifxmipsasc_tx_chars(struct uart_port *port)
static void ifxmipsasc_tx_chars(struct uart_port *port)
{
struct circ_buf *xmit = &port->info->xmit;
if(uart_tx_stopped(port))
{
if (uart_tx_stopped(port)) {
ifxmipsasc_stop_tx(port);
return;
}
while (((ifxmips_r32(port->membase + IFXMIPS_ASC_FSTAT) & ASCFSTAT_TXFFLMASK)
>> ASCFSTAT_TXFFLOFF) != TXFIFO_FULL)
{
if(port->x_char)
{
>> ASCFSTAT_TXFFLOFF) != TXFIFO_FULL) {
if (port->x_char) {
ifxmips_w32(port->x_char, port->membase + IFXMIPS_ASC_TBUF);
port->icount.tx++;
port->x_char = 0;
@ -182,8 +176,7 @@ ifxmipsasc_tx_chars(struct uart_port *port)
uart_write_wakeup(port);
}
static irqreturn_t
ifxmipsasc_tx_int(int irq, void *_port)
static irqreturn_t ifxmipsasc_tx_int(int irq, void *_port)
{
struct uart_port *port = (struct uart_port *)_port;
ifxmips_w32(ASC_IRNCR_TIR, port->membase + IFXMIPS_ASC_IRNCR);
@ -192,8 +185,7 @@ ifxmipsasc_tx_int(int irq, void *_port)
return IRQ_HANDLED;
}
static irqreturn_t
ifxmipsasc_er_int(int irq, void *_port)
static irqreturn_t ifxmipsasc_er_int(int irq, void *_port)
{
struct uart_port *port = (struct uart_port *)_port;
/* clear any pending interrupts */
@ -202,8 +194,7 @@ ifxmipsasc_er_int(int irq, void *_port)
return IRQ_HANDLED;
}
static irqreturn_t
ifxmipsasc_rx_int(int irq, void *_port)
static irqreturn_t ifxmipsasc_rx_int(int irq, void *_port)
{
struct uart_port *port = (struct uart_port *)_port;
ifxmips_w32(ASC_IRNCR_RIR, port->membase + IFXMIPS_ASC_IRNCR);
@ -212,32 +203,27 @@ ifxmipsasc_rx_int(int irq, void *_port)
return IRQ_HANDLED;
}
static unsigned int
ifxmipsasc_tx_empty(struct uart_port *port)
static unsigned int ifxmipsasc_tx_empty(struct uart_port *port)
{
int status;
status = ifxmips_r32(port->membase + IFXMIPS_ASC_FSTAT) & ASCFSTAT_TXFFLMASK;
return status ? 0 : TIOCSER_TEMT;
}
static unsigned int
ifxmipsasc_get_mctrl(struct uart_port *port)
static unsigned int ifxmipsasc_get_mctrl(struct uart_port *port)
{
return TIOCM_CTS | TIOCM_CAR | TIOCM_DSR;
}
static void
ifxmipsasc_set_mctrl(struct uart_port *port, u_int mctrl)
static void ifxmipsasc_set_mctrl(struct uart_port *port, u_int mctrl)
{
}
static void
ifxmipsasc_break_ctl(struct uart_port *port, int break_state)
static void ifxmipsasc_break_ctl(struct uart_port *port, int break_state)
{
}
static int
ifxmipsasc_startup(struct uart_port *port)
static int ifxmipsasc_startup(struct uart_port *port)
{
unsigned long flags;
int retval;
@ -255,23 +241,20 @@ ifxmipsasc_startup(struct uart_port *port)
local_irq_save(flags);
retval = request_irq(port->irq, ifxmipsasc_tx_int, IRQF_DISABLED, "asc_tx", port);
if(retval)
{
printk("failed to request ifxmipsasc_tx_int\n");
if (retval) {
printk(KERN_ERR "failed to request ifxmipsasc_tx_int\n");
return retval;
}
retval = request_irq(port->irq + 2, ifxmipsasc_rx_int, IRQF_DISABLED, "asc_rx", port);
if(retval)
{
printk("failed to request ifxmipsasc_rx_int\n");
if (retval) {
printk(KERN_ERR "failed to request ifxmipsasc_rx_int\n");
goto err1;
}
retval = request_irq(port->irq + 3, ifxmipsasc_er_int, IRQF_DISABLED, "asc_er", port);
if(retval)
{
printk("failed to request ifxmipsasc_er_int\n");
if (retval) {
printk(KERN_ERR "failed to request ifxmipsasc_er_int\n");
goto err2;
}
@ -288,8 +271,7 @@ err1:
return retval;
}
static void
ifxmipsasc_shutdown(struct uart_port *port)
static void ifxmipsasc_shutdown(struct uart_port *port)
{
free_irq(port->irq, port);
free_irq(port->irq + 2, port);
@ -314,8 +296,7 @@ static void ifxmipsasc_set_termios(struct uart_port *port, struct ktermios *new,
cflag = new->c_cflag;
iflag = new->c_iflag;
switch(cflag & CSIZE)
{
switch (cflag & CSIZE) {
case CS7:
con = ASCCON_M_7ASYNC;
break;
@ -330,8 +311,7 @@ static void ifxmipsasc_set_termios(struct uart_port *port, struct ktermios *new,
if (cflag & CSTOPB)
con |= ASCCON_STP;
if(cflag & PARENB)
{
if (cflag & PARENB) {
if (!(cflag & PARODD))
con &= ~ASCCON_ODD;
else
@ -346,8 +326,7 @@ static void ifxmipsasc_set_termios(struct uart_port *port, struct ktermios *new,
if (iflag & IGNPAR)
port->ignore_status_mask |= ASCSTATE_FE | ASCSTATE_PE;
if(iflag & IGNBRK)
{
if (iflag & IGNBRK) {
/*
* If we're ignoring parity and break indicators,
* ignore overruns too (for real raw support).
@ -393,11 +372,9 @@ static void ifxmipsasc_set_termios(struct uart_port *port, struct ktermios *new,
local_irq_restore(flags);
}
static const char*
ifxmipsasc_type(struct uart_port *port)
{
if(port->type == PORT_IFXMIPSASC)
static const char *ifxmipsasc_type(struct uart_port *port)
{
if (port->type == PORT_IFXMIPSASC) {
if (port->membase == (void *)IFXMIPS_ASC_BASE_ADDR)
return "asc0";
else
@ -407,29 +384,24 @@ ifxmipsasc_type(struct uart_port *port)
}
}
static void
ifxmipsasc_release_port(struct uart_port *port)
static void ifxmipsasc_release_port(struct uart_port *port)
{
}
static int
ifxmipsasc_request_port(struct uart_port *port)
static int ifxmipsasc_request_port(struct uart_port *port)
{
return 0;
}
static void
ifxmipsasc_config_port(struct uart_port *port, int flags)
{
if(flags & UART_CONFIG_TYPE)
static void ifxmipsasc_config_port(struct uart_port *port, int flags)
{
if (flags & UART_CONFIG_TYPE) {
port->type = PORT_IFXMIPSASC;
ifxmipsasc_request_port(port);
}
}
static int
ifxmipsasc_verify_port(struct uart_port *port, struct serial_struct *ser)
static int ifxmipsasc_verify_port(struct uart_port *port, struct serial_struct *ser)
{
int ret = 0;
if (ser->type != PORT_UNKNOWN && ser->type != PORT_IFXMIPSASC)
@ -441,8 +413,7 @@ ifxmipsasc_verify_port(struct uart_port *port, struct serial_struct *ser)
return ret;
}
static struct uart_ops ifxmipsasc_pops =
{
static struct uart_ops ifxmipsasc_pops = {
.tx_empty = ifxmipsasc_tx_empty,
.set_mctrl = ifxmipsasc_set_mctrl,
.get_mctrl = ifxmipsasc_get_mctrl,
@ -461,42 +432,39 @@ static struct uart_ops ifxmipsasc_pops =
.verify_port = ifxmipsasc_verify_port,
};
static struct uart_port ifxmipsasc_port[2] =
static struct uart_port ifxmipsasc_port[2] = {
{
{
membase: (void *)IFXMIPS_ASC_BASE_ADDR,
mapbase: IFXMIPS_ASC_BASE_ADDR,
iotype: SERIAL_IO_MEM,
irq: IFXMIPSASC_TIR(0),
uartclk: 0,
fifosize: 16,
type: PORT_IFXMIPSASC,
ops: &ifxmipsasc_pops,
flags: ASYNC_BOOT_AUTOCONF,
line: 0
.membase = (void *)IFXMIPS_ASC_BASE_ADDR,
.mapbase = IFXMIPS_ASC_BASE_ADDR,
.iotype = SERIAL_IO_MEM,
.irq = IFXMIPSASC_TIR(0),
.uartclk = 0,
.fifosize = 16,
.type = PORT_IFXMIPSASC,
.ops = &ifxmipsasc_pops,
.flags = ASYNC_BOOT_AUTOCONF,
.line = 0
}, {
membase: (void *)(IFXMIPS_ASC_BASE_ADDR + IFXMIPS_ASC_BASE_DIFF),
mapbase: IFXMIPS_ASC_BASE_ADDR + IFXMIPS_ASC_BASE_DIFF,
iotype: SERIAL_IO_MEM,
irq: IFXMIPSASC_TIR(1),
uartclk: 0,
fifosize: 16,
type: PORT_IFXMIPSASC,
ops: &ifxmipsasc_pops,
flags: ASYNC_BOOT_AUTOCONF,
line: 1
.membase = (void *)(IFXMIPS_ASC_BASE_ADDR + IFXMIPS_ASC_BASE_DIFF),
.mapbase = IFXMIPS_ASC_BASE_ADDR + IFXMIPS_ASC_BASE_DIFF,
.iotype = SERIAL_IO_MEM,
.irq = IFXMIPSASC_TIR(1),
.uartclk = 0,
.fifosize = 16,
.type = PORT_IFXMIPSASC,
.ops = &ifxmipsasc_pops,
.flags = ASYNC_BOOT_AUTOCONF,
.line = 1
}
};
static void
ifxmipsasc_console_write(struct console *co, const char *s, u_int count)
static void ifxmipsasc_console_write(struct console *co, const char *s, u_int count)
{
int port = co->index;
int i, fifocnt;
unsigned long flags;
local_irq_save(flags);
for(i = 0; i < count; i++)
{
for (i = 0; i < count; i++) {
do {
fifocnt = (ifxmips_r32((u32 *)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_FSTAT)) & ASCFSTAT_TXFFLMASK)
>> ASCFSTAT_TXFFLOFF;
@ -505,8 +473,7 @@ ifxmipsasc_console_write(struct console *co, const char *s, u_int count)
if (s[i] == '\0')
break;
if(s[i] == '\n')
{
if (s[i] == '\n') {
ifxmips_w32('\r', (u32 *)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_TBUF));
do {
fifocnt = (ifxmips_r32((u32 *)(IFXMIPS_ASC_BASE_ADDR + (port * IFXMIPS_ASC_BASE_DIFF) + IFXMIPS_ASC_FSTAT)) & ASCFSTAT_TXFFLMASK)
@ -519,8 +486,7 @@ ifxmipsasc_console_write(struct console *co, const char *s, u_int count)
local_irq_restore(flags);
}
static int __init
ifxmipsasc_console_setup(struct console *co, char *options)
static int __init ifxmipsasc_console_setup(struct console *co, char *options)
{
int port = co->index;
int baud = 115200;
@ -537,26 +503,25 @@ ifxmipsasc_console_setup(struct console *co, char *options)
static struct console ifxmipsasc_console[2] =
{
{
name: "ttyS",
write: ifxmipsasc_console_write,
device: uart_console_device,
setup: ifxmipsasc_console_setup,
flags: CON_PRINTBUFFER,
index: 0,
data: &ifxmipsasc_reg,
.name = "ttyS",
.write = ifxmipsasc_console_write,
.device = uart_console_device,
.setup = ifxmipsasc_console_setup,
.flags = CON_PRINTBUFFER,
.index = 0,
.data = &ifxmipsasc_reg,
}, {
name: "ttyS",
write: ifxmipsasc_console_write,
device: uart_console_device,
setup: ifxmipsasc_console_setup,
flags: CON_PRINTBUFFER,
index: 1,
data: &ifxmipsasc_reg,
.name = "ttyS",
.write = ifxmipsasc_console_write,
.device = uart_console_device,
.setup = ifxmipsasc_console_setup,
.flags = CON_PRINTBUFFER,
.index = 1,
.data = &ifxmipsasc_reg,
}
};
static int __init
ifxmipsasc_console_init(void)
static int __init ifxmipsasc_console_init(void)
{
register_console(&ifxmipsasc_console[0]);
register_console(&ifxmipsasc_console[1]);
@ -564,8 +529,7 @@ ifxmipsasc_console_init(void)
}
console_initcall(ifxmipsasc_console_init);
static struct uart_driver ifxmipsasc_reg =
{
static struct uart_driver ifxmipsasc_reg = {
.owner = THIS_MODULE,
.driver_name = "serial",
.dev_name = "ttyS",
@ -575,8 +539,7 @@ static struct uart_driver ifxmipsasc_reg =
.cons = &ifxmipsasc_console[1],
};
int __init
ifxmipsasc_init(void)
int __init ifxmipsasc_init(void)
{
int ret;
uart_register_driver(&ifxmipsasc_reg);
@ -585,8 +548,7 @@ ifxmipsasc_init(void)
return 0;
}
void __exit
ifxmipsasc_exit(void)
void __exit ifxmipsasc_exit(void)
{
uart_unregister_driver(&ifxmipsasc_reg);
}

9
target/linux/ifxmips/files/include/asm-mips/ifxmips/ifxmips.h
View File

@ -33,10 +33,9 @@
#define IOMEM_RESOURCE_END 0xffffffff
#define IFXMIPS_FLASH_START 0x10000000
#define IFXMIPS_FLASH_MAX 0x2000000
#define IFXMIPS_FLASH_MAX 0x02000000
/*------------ ASC1 */
/*------------ ASC0/1 */
#define IFXMIPS_ASC_BASE_ADDR (KSEG1 + 0x1E100400)
#define IFXMIPS_ASC_BASE_DIFF (0x1E100C00 - 0x1E100400)
@ -197,6 +196,8 @@
#define IFXMIPS_ICU_IM1_ISR ((u32*)(IFXMIPS_ICU_BASE_ADDR + 0x0028))
#define IFXMIPS_ICU_IM2_IER ((u32*)(IFXMIPS_ICU_BASE_ADDR + 0x0058))
#define IFXMIPS_ICU_IM3_IER ((u32*)(IFXMIPS_ICU_BASE_ADDR + 0x0080))
#define IFXMIPS_ICU_IM4_IER ((u32*)(IFXMIPS_ICU_BASE_ADDR + 0x00A8))
#define IFXMIPS_ICU_IM5_IER ((u32*)(IFXMIPS_ICU_BASE_ADDR + 0x00D0))
#define IFXMIPS_ICU_OFFSET (IFXMIPS_ICU_IM1_ISR - IFXMIPS_ICU_IM0_ISR)
@ -387,7 +388,7 @@
/*------------ MEI */
#define IFXMIPS_MEI_BASE_ADDR (0xBE116000)
#define IFXMIPS_MEI_BASE_ADDR (KSEG1 + 0x1E116000)
#define MEI_DATA_XFR ((u32*)(IFXMIPS_MEI_BASE_ADDR + 0x0000))
#define MEI_VERSION ((u32*)(IFXMIPS_MEI_BASE_ADDR + 0x0004))

9
target/linux/ifxmips/files/include/asm-mips/ifxmips/ifxmips_dma.h
View File

@ -57,7 +57,7 @@ enum attr_t{
#define IFXMIPS_DMA_TX 1
typedef struct dma_chan_map {
char dev_name[15];
const char *dev_name;
enum attr_t dir;
int pri;
int irq;
@ -75,7 +75,7 @@ typedef struct rx_desc{
volatile u32 C:1;
volatile u32 OWN:1;
volatile u32 Data_Pointer;
/*fix me:should be 28 bits here, 32 bits just for host simulatiuon purpose*/
/* fix me:should be 28 bits here, 32 bits just for host simulation purpose */
}_rx_desc;
typedef struct tx_desc{
@ -86,9 +86,9 @@ typedef struct tx_desc{
volatile u32 SoP:1;
volatile u32 C:1;
volatile u32 OWN:1;
volatile u32 Data_Pointer;//fix me:should be 28 bits here
volatile u32 Data_Pointer;/* fix me:should be 28 bits here */
}_tx_desc;
#else //BIG
#else /* BIG */
typedef struct rx_desc{
union
{
@ -200,3 +200,4 @@ int dma_device_read(struct dma_device_info* info, u8** dataptr, void** opt);
int dma_device_write(struct dma_device_info* info, u8* dataptr, int len, void* opt);
#endif

1
target/linux/ifxmips/files/include/asm-mips/mach-ifxmips/gpio.h
View File

@ -19,7 +19,6 @@
*
*/
#ifndef _IFXMIPS_GPIO_H_
#define _IFXMIPS_GPIO_H_

2
target/linux/ifxmips/nfs/base-files/etc/preinit.arch
View File

@ -1,3 +1,5 @@
grep "/dev/root" /proc/mounts |grep -q nfs && {
echo "- init nfs -"
exec /sbin/init
}

16
target/linux/ifxmips/nfs/config-2.6.27 Normal file
View File

@ -0,0 +1,16 @@
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MD5=y
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_DHCP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_LOCKD=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_RPCSEC_GSS_KRB5=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y

34
target/linux/ifxmips/patches-2.6.27/000-mips-bad-intctl.patch Normal file
View File

@ -0,0 +1,34 @@
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1484,7 +1484,16 @@ void __cpuinit per_cpu_trap_init(void)
*/
if (cpu_has_mips_r2) {
cp0_compare_irq = (read_c0_intctl() >> 29) & 7;
+ if (!cp0_compare_irq)
+ cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;
+
cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7;
+ if (!cp0_perfcount_irq)
+ cp0_perfcount_irq = CP0_LEGACY_PERFCNT_IRQ;
+
+ if (arch_fixup_c0_irqs)
+ arch_fixup_c0_irqs();
+
if (cp0_perfcount_irq == cp0_compare_irq)
cp0_perfcount_irq = -1;
} else {
--- a/include/asm-mips/irq.h
+++ b/include/asm-mips/irq.h
@@ -156,8 +156,12 @@ extern void free_irqno(unsigned int irq)
* IE7. Since R2 their number has to be read from the c0_intctl register.
*/
#define CP0_LEGACY_COMPARE_IRQ 7
+#define CP0_LEGACY_PERFCNT_IRQ 7
extern int cp0_compare_irq;
extern int cp0_perfcount_irq;
+extern void __weak arch_fixup_c0_irqs(void);
+
+
#endif /* _ASM_IRQ_H */

33
target/linux/ifxmips/patches-2.6.27/010-mips_clocksource_init_war.patch Normal file
View File

@ -0,0 +1,33 @@
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -21,6 +21,22 @@
#ifndef CONFIG_MIPS_MT_SMTC
+/*
+ * Compare interrupt can be routed and latched outside the core,
+ * so a single execution hazard barrier may not be enough to give
+ * it time to clear as seen in the Cause register. 4 time the
+ * pipeline depth seems reasonably conservative, and empirically
+ * works better in configurations with high CPU/bus clock ratios.
+ */
+
+#define compare_change_hazard() \
+ do { \
+ irq_disable_hazard(); \
+ irq_disable_hazard(); \
+ irq_disable_hazard(); \
+ irq_disable_hazard(); \
+ } while (0)
+
static int mips_next_event(unsigned long delta,
struct clock_event_device *evt)
{
@@ -30,6 +46,7 @@ static int mips_next_event(unsigned long
cnt = read_c0_count();
cnt += delta;
write_c0_compare(cnt);
+ compare_change_hazard();
res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0;
return res;
}

72
target/linux/ifxmips/patches-2.6.27/100-board.patch Normal file
View File

@ -0,0 +1,72 @@
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -78,6 +78,23 @@ config MIPS_COBALT
select SYS_SUPPORTS_LITTLE_ENDIAN
select GENERIC_HARDIRQS_NO__DO_IRQ
+config IFXMIPS
+ bool "Infineon Twinpass, Danube, Amazon-SE"
+ select DMA_NONCOHERENT
+ select IRQ_CPU
+ select CEVT_R4K
+ select CSRC_R4K
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_HAS_CPU_MIPS32_R2
+ select HAVE_STD_PC_SERIAL_PORT
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_MULTITHREADING
+ select SYS_HAS_EARLY_PRINTK
+ select HW_HAS_PCI
+ select GENERIC_GPIO
+ select SWAP_IO_SPACE
+
config MACH_DECSTATION
bool "DECstations"
select BOOT_ELF32
@@ -607,6 +624,7 @@ source "arch/mips/sgi-ip27/Kconfig"
source "arch/mips/sibyte/Kconfig"
source "arch/mips/txx9/Kconfig"
source "arch/mips/vr41xx/Kconfig"
+source "arch/mips/ifxmips/Kconfig"
endmenu
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -283,6 +283,13 @@ cflags-$(CONFIG_MIPS_COBALT) += -Iinclud
load-$(CONFIG_MIPS_COBALT) += 0xffffffff80080000
#
+# Infineon IFXMIPS
+#
+core-$(CONFIG_IFXMIPS) += arch/mips/ifxmips/
+cflags-$(CONFIG_IFXMIPS) += -Iinclude/asm-mips/mach-ifxmips
+load-$(CONFIG_IFXMIPS) += 0xffffffff80002000
+
+#
# DECstation family
#
core-$(CONFIG_MACH_DECSTATION) += arch/mips/dec/
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -57,6 +57,12 @@
#define MACH_MIKROTIK_RB532 0 /* Mikrotik RouterBoard 532 */
#define MACH_MIKROTIK_RB532A 1 /* Mikrotik RouterBoard 532A */
+/*
+ * Valid machtype for group IFXMIPS
+ */
+#define MACH_GROUP_IFXMIPS 29
+#define MACH_INFINEON_IFXMIPS 0
+
#define CL_SIZE COMMAND_LINE_SIZE
extern char *system_type;
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -51,3 +51,4 @@ obj-$(CONFIG_VICTOR_MPC30X) += fixup-mpc
obj-$(CONFIG_ZAO_CAPCELLA) += fixup-capcella.o
obj-$(CONFIG_WR_PPMC) += fixup-wrppmc.o
obj-$(CONFIG_MIKROTIK_RB532) += pci-rc32434.o ops-rc32434.o fixup-rc32434.o
+obj-$(CONFIG_IFXMIPS) += pci-ifxmips.o ops-ifxmips.o

152
target/linux/ifxmips/patches-2.6.27/110-drivers.patch Normal file
View File

@ -0,0 +1,152 @@
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -112,6 +112,10 @@ obj-$(CONFIG_PS3_FLASH) += ps3flash.o
obj-$(CONFIG_JS_RTC) += js-rtc.o
js-rtc-y = rtc.o
+obj-$(CONFIG_IFXMIPS_SSC) += ifxmips_ssc.o
+obj-$(CONFIG_IFXMIPS_EEPROM) += ifxmips_eeprom.o
+obj-$(CONFIG_IFXMIPS_MEI) += ifxmips_mei_core.o
+
# Files generated that shall be removed upon make clean
clean-files := consolemap_deftbl.c defkeymap.c
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_MTD_WALNUT) += walnu
obj-$(CONFIG_MTD_H720X) += h720x-flash.o
obj-$(CONFIG_MTD_SBC8240) += sbc8240.o
obj-$(CONFIG_MTD_NOR_TOTO) += omap-toto-flash.o
+obj-$(CONFIG_MTD_IFXMIPS) += ifxmips.o
obj-$(CONFIG_MTD_IXP4XX) += ixp4xx.o
obj-$(CONFIG_MTD_IXP2000) += ixp2000.o
obj-$(CONFIG_MTD_WRSBC8260) += wr_sbc82xx_flash.o
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -343,6 +343,12 @@ config MACB
source "drivers/net/arm/Kconfig"
+config IFXMIPS_MII0
+ tristate "Infineon IFXMips eth0 driver"
+ depends on IFXMIPS
+ help
+ Support for the MII0 inside the IFXMips SOC
+
config AX88796
tristate "ASIX AX88796 NE2000 clone support"
depends on ARM || MIPS || SUPERH
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -1353,6 +1353,14 @@ config SERIAL_OF_PLATFORM
Currently, only 8250 compatible ports are supported, but
others can easily be added.
+config SERIAL_IFXMIPS
+ bool "IFXMips serial driver"
+ depends on IFXMIPS
+ select SERIAL_CORE
+ select SERIAL_CORE_CONSOLE
+ help
+ Driver for the ifxmipss built in ASC hardware
+
config SERIAL_QE
tristate "Freescale QUICC Engine serial port support"
depends on QUICC_ENGINE
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -69,3 +69,4 @@ obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_s
obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o
obj-$(CONFIG_SERIAL_QE) += ucc_uart.o
+obj-$(CONFIG_SERIAL_IFXMIPS) += ifxmips_asc.o
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -102,6 +102,7 @@ obj-$(CONFIG_WDT_RM9K_GPI) += rm9k_wdt.o
obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
+obj-$(CONFIG_IFXMIPS_WDT) += ifxmips_wdt.o
# PARISC Architecture
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -256,4 +256,4 @@ obj-$(CONFIG_NETXEN_NIC) += netxen/
obj-$(CONFIG_NIU) += niu.o
obj-$(CONFIG_VIRTIO_NET) += virtio_net.o
obj-$(CONFIG_SFC) += sfc/
-
+obj-$(CONFIG_IFXMIPS_MII0) += ifxmips_mii0.o
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -9,6 +9,9 @@ menuconfig CRYPTO_HW
If you say N, all options in this submenu will be skipped and disabled.
if CRYPTO_HW
+config CRYPTO_DEV_IFXMIPS
+ tristate "Support for IFXMIPS Data Encryption Unit"
+ depends on IFXMIPS
config CRYPTO_DEV_PADLOCK
tristate "Support for VIA PadLock ACE"
--- a/drivers/crypto/Makefile
+++ b/drivers/crypto/Makefile
@@ -4,3 +4,4 @@ obj-$(CONFIG_CRYPTO_DEV_GEODE) += geode-
obj-$(CONFIG_CRYPTO_DEV_HIFN_795X) += hifn_795x.o
obj-$(CONFIG_CRYPTO_DEV_TALITOS) += talitos.o
obj-$(CONFIG_CRYPTO_DEV_IXP4XX) += ixp4xx_crypto.o
+obj-$(CONFIG_CRYPTO_DEV_IFXMIPS) += ifxdeu-aes.o ifxdeu-des.o ifxdeu-dma.o ifxdeu-generic.o ifxdeu-md5.o ifxdeu-sha1.o
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -305,3 +305,10 @@ config SUPERH_ON_CHIP_R8A66597
help
This driver enables support for the on-chip R8A66597 in the
SH7366 and SH7723 processors.
+
+config USB_DWC_HCD
+ tristate "IFXMIPS USB Host Controller Driver"
+ depends on USB && IFXMIPS
+ default y
+ help
+ Danube USB Host Controller
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -169,6 +169,12 @@ config LEDS_PCA955X
LED driver chips accessed via the I2C bus. Supported
devices include PCA9550, PCA9551, PCA9552, and PCA9553.
+config LEDS_IFXMIPS
+ tristate "LED Support for IFXMIPS LEDs"
+ depends on LEDS_CLASS && IFXMIPS
+ help
+ This option enables support for the CM-X270 LEDs.
+
comment "LED Triggers"
config LEDS_TRIGGERS
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-c
obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
obj-$(CONFIG_LEDS_FSG) += leds-fsg.o
obj-$(CONFIG_LEDS_PCA955X) += leds-pca955x.o
+obj-$(CONFIG_LEDS_IFXMIPS) += leds-ifxmips.o
# LED Triggers
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -704,6 +704,12 @@ config TXX9_WDT
help
Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
+config IFXMIPS_WDT
+ bool "IFXMips watchdog"
+ depends on IFXMIPS
+ help
+ Hardware driver for the IFXMIPS Watchdog Timer.
+
# PARISC Architecture
# POWERPC Architecture

13
target/linux/ifxmips/patches-2.6.27/160-cfi-swap.patch Normal file
View File

@ -0,0 +1,13 @@
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1025,7 +1025,9 @@ static int __xipram do_write_oneword(str
int retry_cnt = 0;
adr += chip->start;
-
+#ifdef CONFIG_IFXMIPS
+ adr ^= 2;
+#endif
spin_lock(chip->mutex);
ret = get_chip(map, chip, adr, FL_WRITING);
if (ret) {

11
target/linux/ifxmips/patches-2.6.27/170-dma_hack.patch Normal file
View File

@ -0,0 +1,11 @@
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -51,6 +51,8 @@ void (*_dma_cache_wback)(unsigned long s
void (*_dma_cache_inv)(unsigned long start, unsigned long size);
EXPORT_SYMBOL(_dma_cache_wback_inv);
+EXPORT_SYMBOL(_dma_cache_wback);
+EXPORT_SYMBOL(_dma_cache_inv);
#endif /* CONFIG_DMA_NONCOHERENT */

12
target/linux/ifxmips/patches-2.6.27/200-genirq_fix.patch Normal file
View File

@ -0,0 +1,12 @@
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -526,6 +526,9 @@ handle_percpu_irq(unsigned int irq, stru
kstat_this_cpu.irqs[irq]++;
+ if (unlikely(!desc->action || (desc->status & IRQ_DISABLED)))
+ return;
+
if (desc->chip->ack)
desc->chip->ack(irq);

34
target/linux/ifxmips/patches/000-mips-bad-intctl.patch Normal file
View File

@ -0,0 +1,34 @@
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1464,7 +1464,16 @@ void __cpuinit per_cpu_trap_init(void)
*/
if (cpu_has_mips_r2) {
cp0_compare_irq = (read_c0_intctl() >> 29) & 7;
+ if (!cp0_compare_irq)
+ cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;
+
cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7;
+ if (!cp0_perfcount_irq)
+ cp0_perfcount_irq = CP0_LEGACY_PERFCNT_IRQ;
+
+ if (arch_fixup_c0_irqs)
+ arch_fixup_c0_irqs();
+
if (cp0_perfcount_irq == cp0_compare_irq)
cp0_perfcount_irq = -1;
} else {
--- a/include/asm-mips/irq.h
+++ b/include/asm-mips/irq.h
@@ -156,8 +156,12 @@ extern void free_irqno(unsigned int irq)
* IE7. Since R2 their number has to be read from the c0_intctl register.
*/
#define CP0_LEGACY_COMPARE_IRQ 7
+#define CP0_LEGACY_PERFCNT_IRQ 7
extern int cp0_compare_irq;
extern int cp0_perfcount_irq;
+extern void __weak arch_fixup_c0_irqs(void);
+
+
#endif /* _ASM_IRQ_H */

65
target/linux/ifxmips/patches/010-mips_clocksource_init_war.patch Normal file
View File

@ -0,0 +1,65 @@
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -13,6 +13,22 @@
#include <asm/smtc_ipi.h>
#include <asm/time.h>
+/*
+ * Compare interrupt can be routed and latched outside the core,
+ * so a single execution hazard barrier may not be enough to give
+ * it time to clear as seen in the Cause register. 4 time the
+ * pipeline depth seems reasonably conservative, and empirically
+ * works better in configurations with high CPU/bus clock ratios.
+ */
+
+#define compare_change_hazard() \
+ do { \
+ irq_disable_hazard(); \
+ irq_disable_hazard(); \
+ irq_disable_hazard(); \
+ irq_disable_hazard(); \
+ } while (0)
+
static int mips_next_event(unsigned long delta,
struct clock_event_device *evt)
{
@@ -28,6 +44,7 @@ static int mips_next_event(unsigned long
cnt = read_c0_count();
cnt += delta;
write_c0_compare(cnt);
+ compare_change_hazard();
res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0;
#ifdef CONFIG_MIPS_MT_SMTC
evpe(vpflags);
@@ -187,7 +204,7 @@ static int c0_compare_int_usable(void)
*/
if (c0_compare_int_pending()) {
write_c0_compare(read_c0_count());
- irq_disable_hazard();
+ compare_change_hazard();
if (c0_compare_int_pending())
return 0;
}
@@ -196,7 +213,7 @@ static int c0_compare_int_usable(void)
cnt = read_c0_count();
cnt += delta;
write_c0_compare(cnt);
- irq_disable_hazard();
+ compare_change_hazard();
if ((int)(read_c0_count() - cnt) < 0)
break;
/* increase delta if the timer was already expired */
@@ -205,11 +222,12 @@ static int c0_compare_int_usable(void)
while ((int)(read_c0_count() - cnt) <= 0)
; /* Wait for expiry */
+ compare_change_hazard();
if (!c0_compare_int_pending())
return 0;
write_c0_compare(read_c0_count());
- irq_disable_hazard();
+ compare_change_hazard();
if (c0_compare_int_pending())
return 0;

16
target/linux/ifxmips/patches/100-board.patch
View File

@ -1,6 +1,6 @@
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -78,6 +78,21 @@ config MIPS_COBALT
@@ -78,6 +78,23 @@ config MIPS_COBALT
select SYS_SUPPORTS_LITTLE_ENDIAN
select GENERIC_HARDIRQS_NO__DO_IRQ
@ -11,9 +11,11 @@
+ select CEVT_R4K
+ select CSRC_R4K
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_HAS_CPU_MIPS32_R2
+ select HAVE_STD_PC_SERIAL_PORT
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_MULTITHREADING
+ select SYS_HAS_EARLY_PRINTK
+ select HW_HAS_PCI
+ select GENERIC_GPIO
@ -22,7 +24,7 @@
config MACH_DECSTATION
bool "DECstations"
select BOOT_ELF32
@@ -697,6 +712,7 @@ source "arch/mips/sibyte/Kconfig"
@@ -697,6 +714,7 @@ source "arch/mips/sibyte/Kconfig"
source "arch/mips/tx4927/Kconfig"
source "arch/mips/tx4938/Kconfig"
source "arch/mips/vr41xx/Kconfig"
@ -61,16 +63,6 @@
#define CL_SIZE COMMAND_LINE_SIZE
extern char *system_type;
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1464,6 +1464,7 @@ void __cpuinit per_cpu_trap_init(void)
*/
if (cpu_has_mips_r2) {
cp0_compare_irq = (read_c0_intctl() >> 29) & 7;
+ cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;
cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7;
if (cp0_perfcount_irq == cp0_compare_irq)
cp0_perfcount_irq = -1;
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -48,3 +48,4 @@ obj-$(CONFIG_TOSHIBA_RBTX4938) += fixup-

88
target/linux/ifxmips/series
View File

@ -1,88 +0,0 @@
Makefile
base-files/etc/config/network
config-2.6.23
files/arch/mips/danube/Kconfig
files/arch/mips/danube/Makefile
files/arch/mips/danube/built-in.o
files/arch/mips/danube/dma-core.c
files/arch/mips/danube/dma-core.h
files/arch/mips/danube/dma-core.o
files/arch/mips/danube/interrupt.c
files/arch/mips/danube/interrupt.o
files/arch/mips/danube/kgdb_serial.c
files/arch/mips/danube/pci.c
files/arch/mips/danube/prom.c
files/arch/mips/danube/prom.o
files/arch/mips/danube/reset.c
files/arch/mips/danube/reset.o
files/arch/mips/danube/setup.c
files/arch/mips/danube/setup.o
files/drivers/mtd/maps/danube.c
files/drivers/serial/danube_asc.c
files/drivers/serial/danube_asc.c~
files/drivers/serial/danube_asc.o
files/include/asm-mips/danube/adm6996.h
files/include/asm-mips/danube/atm_mib.h
files/include/asm-mips/danube/danube.h
files/include/asm-mips/danube/danube_bcu.h
files/include/asm-mips/danube/danube_cgu.h
files/include/asm-mips/danube/danube_deu.h
files/include/asm-mips/danube/danube_deu_structs.h
files/include/asm-mips/danube/danube_dma.h
files/include/asm-mips/danube/danube_eth2.h
files/include/asm-mips/danube/danube_eth2_fw.h
files/include/asm-mips/danube/danube_eth2_fw_with_dplus.h
files/include/asm-mips/danube/danube_eth2_fw_with_dplus_sb.h
files/include/asm-mips/danube/danube_eth_d2.h
files/include/asm-mips/danube/danube_eth_fw_d2.h
files/include/asm-mips/danube/danube_gpio.h
files/include/asm-mips/danube/danube_gptu.h
files/include/asm-mips/danube/danube_icu.h
files/include/asm-mips/danube/danube_led.h
files/include/asm-mips/danube/danube_mei.h
files/include/asm-mips/danube/danube_mei_app.h
files/include/asm-mips/danube/danube_mei_app_ioctl.h
files/include/asm-mips/danube/danube_mei_bsp.h
files/include/asm-mips/danube/danube_mei_ioctl.h
files/include/asm-mips/danube/danube_mei_linux.h
files/include/asm-mips/danube/danube_misc.h
files/include/asm-mips/danube/danube_pmu.h
files/include/asm-mips/danube/danube_ppa_api.h
files/include/asm-mips/danube/danube_ppa_eth_fw_d2.h
files/include/asm-mips/danube/danube_ppa_eth_fw_d3.h
files/include/asm-mips/danube/danube_ppa_hook.h
files/include/asm-mips/danube/danube_ppa_ppe_d3_hal.h
files/include/asm-mips/danube/danube_ppa_ppe_hal.h
files/include/asm-mips/danube/danube_ppa_stack_al.h
files/include/asm-mips/danube/danube_ppe.h
files/include/asm-mips/danube/danube_ppe_fw.h
files/include/asm-mips/danube/danube_ppe_fw_fix_for_pci.h
files/include/asm-mips/danube/danube_rcu.h
files/include/asm-mips/danube/danube_sdio_controller.h
files/include/asm-mips/danube/danube_sdio_controller_registers.h
files/include/asm-mips/danube/danube_ssc.h
files/include/asm-mips/danube/danube_sw.h
files/include/asm-mips/danube/danube_wdt.h
files/include/asm-mips/danube/danube_ws.h
files/include/asm-mips/danube/emulation.h
files/include/asm-mips/danube/ifx_mps.h
files/include/asm-mips/danube/ifx_peripheral_definitions.h
files/include/asm-mips/danube/ifx_sd_card.h
files/include/asm-mips/danube/ifx_serial.h
files/include/asm-mips/danube/ifx_ssc.h
files/include/asm-mips/danube/ifx_ssc_defines.h
files/include/asm-mips/danube/ifx_types.h
files/include/asm-mips/danube/infineon_sdio.h
files/include/asm-mips/danube/infineon_sdio_card.h
files/include/asm-mips/danube/infineon_sdio_cmds.h
files/include/asm-mips/danube/infineon_sdio_controller.h
files/include/asm-mips/danube/irq.h
files/include/asm-mips/danube/memcopy.h
files/include/asm-mips/danube/mps.h
files/include/asm-mips/danube/port.h
files/include/asm-mips/danube/ppe.h
files/include/asm-mips/danube/serial.h
files/include/asm-mips/mach-danube/irq.h
image/Makefile
patches/100-board.patch
patches/110-drivers.patch