brcm47xx: add initial support for kernel 3.8

This contains the following new bigger changes:
 * new partition parser which still could lake some features or have bugs
 * new nand flash driver
 * using physmap-flash flash driver for parallel flash
 * some changes to the serial flash driver

With these changes OpenWrt starts using more of the mainline flash drivers.

SVN-Revision: 35632

1 files changed, 177 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-3.8/400-arch-bcm47xx.patch b/target/linux/brcm47xx/patches-3.8/400-arch-bcm47xx.patch
new file mode 100644
index 0000000000..3f8b14dba4
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.8/400-arch-bcm47xx.patch
@@ -0,0 +1,177 @@
+--- a/arch/mips/bcm47xx/nvram.c
++++ b/arch/mips/bcm47xx/nvram.c
+@@ -198,3 +198,30 @@ int bcm47xx_nvram_getenv(char *name, cha
+ 	return -ENOENT;
+ }
+ EXPORT_SYMBOL(bcm47xx_nvram_getenv);
++
++char *nvram_get(const char *name)
++{
++	char *var, *value, *end, *eq;
++
++	if (!name)
++		return NULL;
++
++	if (!nvram_buf[0])
++		nvram_init();
++
++	/* Look for name=value and return value */
++	var = &nvram_buf[sizeof(struct nvram_header)];
++	end = nvram_buf + sizeof(nvram_buf) - 2;
++	end[0] = end[1] = '\0';
++	for (; *var; var = value + strlen(value) + 1) {
++		eq = strchr(var, '=');
++		if (!eq)
++			break;
++		value = eq + 1;
++		if ((eq - var) == strlen(name) && strncmp(var, name, (eq - var)) == 0)
++			return value;
++	}
++
++	return NULL;
++}
++EXPORT_SYMBOL(nvram_get);
+--- a/arch/mips/bcm47xx/Makefile
++++ b/arch/mips/bcm47xx/Makefile
+@@ -5,4 +5,5 @@
+ 
+ obj-y 				+= irq.o nvram.o prom.o serial.o setup.o time.o sprom.o
+ obj-y				+= board.o
++obj-y 				+= gpio.o
+ obj-$(CONFIG_BCM47XX_SSB)	+= wgt634u.o
+--- /dev/null
++++ b/arch/mips/bcm47xx/gpio.c
+@@ -0,0 +1,119 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
++ * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
++ *
++ * Parts of this file are based on Atheros AR71XX/AR724X/AR913X GPIO
++ */
++
++#include <linux/export.h>
++#include <linux/gpio.h>
++#include <linux/ssb/ssb_embedded.h>
++#include <linux/bcma/bcma.h>
++
++#include <bcm47xx.h>
++
++/* low level BCM47xx gpio api */
++u32 bcm47xx_gpio_in(u32 mask)
++{
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		return ssb_gpio_in(&bcm47xx_bus.ssb, mask);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc, mask);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_in);
++
++u32 bcm47xx_gpio_out(u32 mask, u32 value)
++{
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		return ssb_gpio_out(&bcm47xx_bus.ssb, mask, value);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, mask,
++					    value);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_out);
++
++u32 bcm47xx_gpio_outen(u32 mask, u32 value)
++{
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		return ssb_gpio_outen(&bcm47xx_bus.ssb, mask, value);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc,
++					      mask, value);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_outen);
++
++u32 bcm47xx_gpio_control(u32 mask, u32 value)
++{
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		return ssb_gpio_control(&bcm47xx_bus.ssb, mask, value);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_chipco_gpio_control(&bcm47xx_bus.bcma.bus.drv_cc,
++						mask, value);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_control);
++
++u32 bcm47xx_gpio_intmask(u32 mask, u32 value)
++{
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		return ssb_gpio_intmask(&bcm47xx_bus.ssb, mask, value);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_chipco_gpio_intmask(&bcm47xx_bus.bcma.bus.drv_cc,
++						mask, value);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_intmask);
++
++u32 bcm47xx_gpio_polarity(u32 mask, u32 value)
++{
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		return ssb_gpio_polarity(&bcm47xx_bus.ssb, mask, value);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_chipco_gpio_polarity(&bcm47xx_bus.bcma.bus.drv_cc,
++						 mask, value);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_polarity);
+--- a/arch/mips/include/asm/mach-bcm47xx/gpio.h
++++ b/arch/mips/include/asm/mach-bcm47xx/gpio.h
+@@ -14,4 +14,11 @@ static inline int irq_to_gpio(unsigned i
+ 	return -EINVAL;
+ }
+ 
++u32 bcm47xx_gpio_in(u32 mask);
++u32 bcm47xx_gpio_out(u32 mask, u32 value);
++u32 bcm47xx_gpio_outen(u32 mask, u32 value);
++u32 bcm47xx_gpio_control(u32 mask, u32 value);
++u32 bcm47xx_gpio_intmask(u32 mask, u32 value);
++u32 bcm47xx_gpio_polarity(u32 mask, u32 value);
++
+ #endif