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

amazon: Upgrade amazon target to kernel 2.6.37

This was just a little bit tested on an SAMSUNG SMT-G3020 and pci and usb do not work like before.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26576 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
hauke
2011-04-10 15:08:28 +00:00
parent b722ce28af
commit 126a87196c
19 changed files with 380 additions and 27 deletions

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@@ -0,0 +1,33 @@
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1578,7 +1578,16 @@ void __cpuinit per_cpu_trap_init(void)
if (cpu_has_mips_r2) {
cp0_compare_irq_shift = CAUSEB_TI - CAUSEB_IP;
cp0_compare_irq = (read_c0_intctl() >> INTCTLB_IPTI) & 7;
+ if (!cp0_compare_irq)
+ cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;
+
cp0_perfcount_irq = (read_c0_intctl() >> INTCTLB_IPPCI) & 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/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -138,9 +138,11 @@ 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_compare_irq_shift;
extern int cp0_perfcount_irq;
+extern void __weak arch_fixup_c0_irqs(void);
#endif /* _ASM_IRQ_H */

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@@ -0,0 +1,33 @@
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -23,6 +23,22 @@
#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)
{
@@ -32,6 +48,7 @@ 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;
}

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@@ -0,0 +1,10 @@
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -119,6 +119,7 @@ obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o
octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o
+obj-$(CONFIG_AMAZON_WDT) += amazon_wdt.o
# PARISC Architecture

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@@ -0,0 +1,53 @@
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -102,6 +102,22 @@ config BCM63XX
help
Support for BCM63XX based boards
+config AMAZON
+ bool "Amazon support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ 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_HAS_EARLY_PRINTK
+ select HW_HAS_PCI
+ select SWAP_IO_SPACE
+
config MIPS_COBALT
bool "Cobalt Server"
select CEVT_R4K
@@ -716,6 +732,7 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
endchoice
+source "arch/mips/amazon/Kconfig"
source "arch/mips/alchemy/Kconfig"
source "arch/mips/bcm63xx/Kconfig"
source "arch/mips/jazz/Kconfig"
--- a/arch/mips/Kbuild.platforms
+++ b/arch/mips/Kbuild.platforms
@@ -5,6 +5,7 @@ platforms += ar7
platforms += bcm47xx
platforms += bcm63xx
platforms += cavium-octeon
+platforms += amazon
platforms += cobalt
platforms += dec
platforms += emma
--- /dev/null
+++ b/arch/mips/amazon/Platform
@@ -0,0 +1,7 @@
+#
+# Infineon AMAZON boards
+#
+platform-$(CONFIG_AMAZON) += amazon/
+cflags-$(CONFIG_AMAZON) += \
+ -I$(srctree)/arch/mips/include/asm/mach-amazon
+load-$(CONFIG_AMAZON) := 0xffffffff80002000

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@@ -0,0 +1,7 @@
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -59,3 +59,4 @@ obj-$(CONFIG_MTD_RBTX4939) += rbtx4939-f
obj-$(CONFIG_MTD_VMU) += vmu-flash.o
obj-$(CONFIG_MTD_GPIO_ADDR) += gpio-addr-flash.o
obj-$(CONFIG_MTD_BCM963XX) += bcm963xx-flash.o
+obj-$(CONFIG_AMAZON_MTD) += amazon.o

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@@ -0,0 +1,9 @@
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -302,3 +302,6 @@ obj-$(CONFIG_CAIF) += caif/
obj-$(CONFIG_OCTEON_MGMT_ETHERNET) += octeon/
obj-$(CONFIG_PCH_GBE) += pch_gbe/
obj-$(CONFIG_TILE_NET) += tile/
+
+obj-$(CONFIG_AMAZON_NET_SW) += amazon_sw.o
+obj-$(CONFIG_ADM6996_SUPPORT) += admmod.o

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@@ -0,0 +1,10 @@
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -3,6 +3,7 @@
#
obj-$(CONFIG_SERIAL_CORE) += serial_core.o
+obj-$(CONFIG_AMAZON_ASC_UART) += amazon_asc.o
obj-$(CONFIG_SERIAL_21285) += 21285.o
# These Sparc drivers have to appear before others such as 8250

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@@ -0,0 +1,56 @@
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1166,6 +1166,9 @@ static int __xipram do_write_oneword(str
int retry_cnt = 0;
adr += chip->start;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
mutex_lock(&chip->mutex);
ret = get_chip(map, chip, adr, FL_WRITING);
@@ -1433,7 +1436,11 @@ static int __xipram do_write_buffer(stru
z = 0;
while(z < words * map_bankwidth(map)) {
datum = map_word_load(map, buf);
+#ifdef CONFIG_AMAZON
+ map_write(map, datum, (adr + z) ^ 0x2);
+#else
map_write(map, datum, adr + z);
+#endif
z += map_bankwidth(map);
buf += map_bankwidth(map);
@@ -1678,6 +1685,9 @@ static int __xipram do_erase_oneblock(st
int ret = 0;
adr += chip->start;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
mutex_lock(&chip->mutex);
ret = get_chip(map, chip, adr, FL_ERASING);
@@ -1806,6 +1816,10 @@ static int do_atmel_lock(struct map_info
struct cfi_private *cfi = map->fldrv_priv;
int ret;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
+
mutex_lock(&chip->mutex);
ret = get_chip(map, chip, adr + chip->start, FL_LOCKING);
if (ret)
@@ -1842,6 +1856,10 @@ static int do_atmel_unlock(struct map_in
struct cfi_private *cfi = map->fldrv_priv;
int ret;
+#ifdef CONFIG_AMAZON
+ adr ^= 2;
+#endif
+
mutex_lock(&chip->mutex);
ret = get_chip(map, chip, adr + chip->start, FL_UNLOCKING);
if (ret)