brcm63xx: fix spi flash setup on (at least) some reference boards

CFE seems to leave the SPI flash mapping in an invalid state after
loading the kernel on some reference boards, so fix it up on boot.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 39273

1 files changed, 74 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-3.10/344-MIPS-BCM63XX-detect-flash-type-early-and-store-the-r.patch b/target/linux/brcm63xx/patches-3.10/344-MIPS-BCM63XX-detect-flash-type-early-and-store-the-r.patch
new file mode 100644
index 0000000000..a91a29b16c
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.10/344-MIPS-BCM63XX-detect-flash-type-early-and-store-the-r.patch
@@ -0,0 +1,74 @@
+From 9a97177b907330971aa7bf41855fafc2602e1c18 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Sun, 22 Dec 2013 12:26:57 +0100
+Subject: [PATCH 51/56] MIPS: BCM63XX: detect flash type early and store the
+ result
+
+Signed-off-by: Jonas Gorski <jogo@openwrt.org>
+---
+ arch/mips/bcm63xx/dev-flash.c                          | 10 +++++++---
+ arch/mips/bcm63xx/prom.c                               |  4 ++++
+ arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h |  2 ++
+ 3 files changed, 13 insertions(+), 3 deletions(-)
+
+--- a/arch/mips/bcm63xx/dev-flash.c
++++ b/arch/mips/bcm63xx/dev-flash.c
+@@ -22,6 +22,8 @@
+ #include <bcm63xx_regs.h>
+ #include <bcm63xx_io.h>
+ 
++static int flash_type;
++
+ static struct mtd_partition mtd_partitions[] = {
+ 	{
+ 		.name		= "cfe",
+@@ -108,13 +110,15 @@ static int __init bcm63xx_detect_flash_t
+ 	}
+ }
+ 
++void __init bcm63xx_flash_detect(void)
++{
++	flash_type = bcm63xx_detect_flash_type();
++}
++
+ int __init bcm63xx_flash_register(void)
+ {
+-	int flash_type;
+ 	u32 val;
+ 
+-	flash_type = bcm63xx_detect_flash_type();
+-
+ 	switch (flash_type) {
+ 	case BCM63XX_FLASH_TYPE_PARALLEL:
+ 		/* read base address of boot chip select (0) */
+--- a/arch/mips/bcm63xx/prom.c
++++ b/arch/mips/bcm63xx/prom.c
+@@ -18,6 +18,7 @@
+ #include <bcm63xx_io.h>
+ #include <bcm63xx_regs.h>
+ #include <bcm63xx_gpio.h>
++#include <bcm63xx_dev_flash.h>
+ 
+ void __init prom_init(void)
+ {
+@@ -56,6 +57,9 @@ void __init prom_init(void)
+ 	/* register gpiochip */
+ 	bcm63xx_gpio_init();
+ 
++	/* detect and setup flash access */
++	bcm63xx_flash_detect();
++
+ 	/* do low level board init */
+ 	board_prom_init();
+ 
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
+@@ -7,6 +7,8 @@ enum {
+ 	BCM63XX_FLASH_TYPE_NAND,
+ };
+ 
++void bcm63xx_flash_detect(void);
++
+ int __init bcm63xx_flash_register(void);
+ 
+ #endif /* __BCM63XX_FLASH_H */