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mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2025-04-21 12:27:27 +03:00

[atheros] experimental support for 2.6.27

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12932 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2008-10-09 08:08:13 +00:00
parent e57a3cb7f2
commit eecd8cc2a3
11 changed files with 595 additions and 0 deletions

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@@ -0,0 +1,66 @@
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -59,6 +59,18 @@
help
Support for BCM47XX based boards
+config ATHEROS
+ bool "Atheros SoC support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ select DMA_NONCOHERENT
+ select CEVT_R4K
+ select CSRC_R4K
+ select IRQ_CPU
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select GENERIC_GPIO
+
config MIPS_COBALT
bool "Cobalt Server"
select CEVT_R4K
@@ -598,6 +610,7 @@
endchoice
+source "arch/mips/atheros/Kconfig"
source "arch/mips/au1000/Kconfig"
source "arch/mips/basler/excite/Kconfig"
source "arch/mips/jazz/Kconfig"
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -276,6 +276,13 @@
load-$(CONFIG_MIPS_XXS1500) += 0xffffffff80100000
#
+# Atheros AR5312/AR2312 WiSoC
+#
+core-$(CONFIG_ATHEROS) += arch/mips/atheros/
+cflags-$(CONFIG_ATHEROS) += -Iinclude/asm-mips/mach-atheros
+load-$(CONFIG_ATHEROS) += 0xffffffff80041000
+
+#
# Cobalt Server
#
core-$(CONFIG_MIPS_COBALT) += arch/mips/cobalt/
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -57,6 +57,18 @@
#define MACH_MIKROTIK_RB532 0 /* Mikrotik RouterBoard 532 */
#define MACH_MIKROTIK_RB532A 1 /* Mikrotik RouterBoard 532A */
+/*
+ * Valid machtype for group ATHEROS
+ */
+#define MACH_GROUP_ATHEROS 26
+#define MACH_ATHEROS_AR5312 0
+#define MACH_ATHEROS_AR2312 1
+#define MACH_ATHEROS_AR2313 2
+#define MACH_ATHEROS_AR2315 3
+#define MACH_ATHEROS_AR2316 4
+#define MACH_ATHEROS_AR2317 5
+#define MACH_ATHEROS_AR2318 6
+
#define CL_SIZE COMMAND_LINE_SIZE
extern char *system_type;

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@@ -0,0 +1,20 @@
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -83,6 +83,10 @@
help
This option enables FAST_READ access supported by ST M25Pxx.
+config MTD_SPIFLASH
+ tristate "Atheros AR2315/6/7 SPI Flash support"
+ depends on ATHEROS_AR5315
+
config MTD_SLRAM
tristate "Uncached system RAM"
help
--- a/drivers/mtd/devices/Makefile
+++ b/drivers/mtd/devices/Makefile
@@ -16,3 +16,4 @@
obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o
obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o
obj-$(CONFIG_MTD_M25P80) += m25p80.o
+obj-$(CONFIG_MTD_SPIFLASH) += spiflash.o

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@@ -0,0 +1,25 @@
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -704,6 +704,12 @@
help
Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
+config ATHEROS_WDT
+ tristate "Atheros wisoc Watchdog Timer"
+ depends on ATHEROS
+ help
+ Hardware driver for the Atheros wisoc Watchdog Timer.
+
# PARISC Architecture
# POWERPC Architecture
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -102,6 +102,7 @@
obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
+obj-$(CONFIG_ATHEROS_WDT) += ar2315-wtd.o
# PARISC Architecture

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@@ -0,0 +1,25 @@
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -359,6 +359,12 @@
help
Select this if your platform comes with an external 93CX6 eeprom.
+config AR2313
+ tristate "AR2313 Ethernet support"
+ depends on NET_ETHERNET && ATHEROS
+ help
+ Support for the AR231x/531x ethernet controller
+
config MACE
tristate "MACE (Power Mac ethernet) support"
depends on PPC_PMAC && PPC32
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -195,6 +195,7 @@
obj-$(CONFIG_KORINA) += korina.o
obj-$(CONFIG_MIPS_JAZZ_SONIC) += jazzsonic.o
obj-$(CONFIG_MIPS_AU1X00_ENET) += au1000_eth.o
+obj-$(CONFIG_AR2313) += ar2313/
obj-$(CONFIG_MIPS_SIM_NET) += mipsnet.o
obj-$(CONFIG_SGI_IOC3_ETH) += ioc3-eth.o
obj-$(CONFIG_DECLANCE) += declance.o

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@@ -0,0 +1,11 @@
--- a/drivers/net/ar2313/ar2313.c
+++ b/drivers/net/ar2313/ar2313.c
@@ -291,7 +291,7 @@
sp->mii_bus.write = mdiobus_write;
sp->mii_bus.reset = mdiobus_reset;
sp->mii_bus.name = "ar2313_eth_mii";
- sp->mii_bus.id = 0;
+ snprintf(sp->mii_bus.id, MII_BUS_ID_SIZE, "0");
sp->mii_bus.irq = kmalloc(sizeof(int), GFP_KERNEL);
*sp->mii_bus.irq = PHY_POLL;

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@@ -0,0 +1,54 @@
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -60,31 +60,32 @@
static char nullstring[] = "unallocated";
#endif
+ buf = vmalloc(master->erasesize);
+ if (!buf)
+ return -ENOMEM;
+
+ restart:
if ( directory < 0 ) {
offset = master->size + directory * master->erasesize;
- while (master->block_isbad &&
+ while (master->block_isbad &&
master->block_isbad(master, offset)) {
if (!offset) {
nogood:
printk(KERN_NOTICE "Failed to find a non-bad block to check for RedBoot partition table\n");
+ vfree(buf);
return -EIO;
}
offset -= master->erasesize;
}
} else {
offset = directory * master->erasesize;
- while (master->block_isbad &&
+ while (master->block_isbad &&
master->block_isbad(master, offset)) {
offset += master->erasesize;
if (offset == master->size)
goto nogood;
}
}
- buf = vmalloc(master->erasesize);
-
- if (!buf)
- return -ENOMEM;
-
printk(KERN_NOTICE "Searching for RedBoot partition table in %s at offset 0x%lx\n",
master->name, offset);
@@ -156,6 +157,11 @@
}
if (i == numslots) {
/* Didn't find it */
+ if (offset + master->erasesize < master->size) {
+ /* not at the end of the flash yet, maybe next block :) */
+ directory++;
+ goto restart;
+ }
printk(KERN_NOTICE "No RedBoot partition table detected in %s\n",
master->name);
ret = 0;

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@@ -0,0 +1,26 @@
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3983,8 +3983,8 @@
/* Fix illegal SG+CSUM combinations. */
if ((dev->features & NETIF_F_SG) &&
!(dev->features & NETIF_F_ALL_CSUM)) {
- printk(KERN_NOTICE "%s: Dropping NETIF_F_SG since no checksum feature.\n",
- dev->name);
+ //printk(KERN_NOTICE "%s: Dropping NETIF_F_SG since no checksum feature.\n",
+ // dev->name);
dev->features &= ~NETIF_F_SG;
}
@@ -3997,9 +3997,9 @@
}
if (dev->features & NETIF_F_UFO) {
if (!(dev->features & NETIF_F_HW_CSUM)) {
- printk(KERN_ERR "%s: Dropping NETIF_F_UFO since no "
- "NETIF_F_HW_CSUM feature.\n",
- dev->name);
+ //printk(KERN_ERR "%s: Dropping NETIF_F_UFO since no "
+ // "NETIF_F_HW_CSUM feature.\n",
+ // dev->name);
dev->features &= ~NETIF_F_UFO;
}
if (!(dev->features & NETIF_F_SG)) {

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@@ -0,0 +1,34 @@
--- a/drivers/net/ar2313/ar2313.c
+++ b/drivers/net/ar2313/ar2313.c
@@ -953,9 +953,9 @@
((status >> DMA_RX_LEN_SHIFT) & 0x3fff) - CRC_LEN);
dev->stats.rx_bytes += skb->len;
- skb->protocol = eth_type_trans(skb, dev);
+
/* pass the packet to upper layers */
- netif_rx(skb);
+ sp->rx(skb);
skb_new->dev = dev;
/* 16 bit align */
@@ -1370,6 +1370,8 @@
return PTR_ERR(phydev);
}
+ sp->rx = phydev->netif_rx;
+
/* mask with MAC supported features */
phydev->supported &= (SUPPORTED_10baseT_Half
| SUPPORTED_10baseT_Full
--- a/drivers/net/ar2313/ar2313.h
+++ b/drivers/net/ar2313/ar2313.h
@@ -107,6 +107,8 @@
*/
struct ar2313_private {
struct net_device *dev;
+ int (*rx)(struct sk_buff *skb);
+
int version;
u32 mb[2];

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@@ -0,0 +1,43 @@
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -45,6 +45,7 @@
#include <asm/mmu_context.h>
#include <asm/types.h>
#include <asm/stacktrace.h>
+#include <asm/time.h>
extern void check_wait(void);
extern asmlinkage void r4k_wait(void);
@@ -1484,6 +1485,8 @@
*/
if (cpu_has_mips_r2) {
cp0_compare_irq = (read_c0_intctl() >> 29) & 7;
+ if (get_c0_compare_irq)
+ cp0_compare_irq = get_c0_compare_irq();
cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7;
if (cp0_perfcount_irq == cp0_compare_irq)
cp0_perfcount_irq = -1;
--- a/include/asm-mips/time.h
+++ b/include/asm-mips/time.h
@@ -53,6 +53,7 @@
#ifdef CONFIG_CEVT_R4K
extern int mips_clockevent_init(void);
extern unsigned int __weak get_c0_compare_int(void);
+extern unsigned int __weak get_c0_compare_irq(void);
#else
static inline int mips_clockevent_init(void)
{
--- a/arch/mips/atheros/board.c
+++ b/arch/mips/atheros/board.c
@@ -205,6 +205,11 @@
void __init plat_time_init(void) {
board_time_init();
}
+
+unsigned int __cpuinit get_c0_compare_irq(void)
+{
+ return CP0_LEGACY_COMPARE_IRQ;
+}
#endif
void __init arch_init_irq(void)

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@@ -0,0 +1,56 @@
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -15,6 +15,22 @@
#include <asm/cevt-r4k.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)
+
+/*
* The SMTC Kernel for the 34K, 1004K, et. al. replaces several
* of these routines with SMTC-specific variants.
*/
@@ -30,6 +46,7 @@
cnt = read_c0_count();
cnt += delta;
write_c0_compare(cnt);
+ compare_change_hazard();
res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0;
return res;
}
@@ -99,22 +116,6 @@
return (read_c0_cause() >> cp0_compare_irq) & 0x100;
}
-/*
- * 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)
-
int c0_compare_int_usable(void)
{
unsigned int delta;