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-rw-r--r--target/linux/brcm63xx/patches-3.9/031-MIPS-BCM63XX-export-PSI-size-from-nvram.patch58
1 files changed, 58 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.9/031-MIPS-BCM63XX-export-PSI-size-from-nvram.patch b/target/linux/brcm63xx/patches-3.9/031-MIPS-BCM63XX-export-PSI-size-from-nvram.patch
new file mode 100644
index 000000000..8ff9659b5
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.9/031-MIPS-BCM63XX-export-PSI-size-from-nvram.patch
@@ -0,0 +1,58 @@
+From bda508f975d1372568a4fc9862be501a6176fd46 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Sat, 12 May 2012 23:04:17 +0200
+Subject: [PATCH v2 2/3] MIPS: BCM63XX: export PSI size from nvram
+
+Signed-off-by: Jonas Gorski <jogo@openwrt.org>
+---
+ arch/mips/bcm63xx/nvram.c | 13 +++++++++++++
+ arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h | 7 +++++++
+ 2 files changed, 20 insertions(+)
+
+--- a/arch/mips/bcm63xx/nvram.c
++++ b/arch/mips/bcm63xx/nvram.c
+@@ -15,6 +15,7 @@
+ #include <linux/export.h>
+ #include <linux/kernel.h>
+ #include <linux/if_ether.h>
++#include <linux/sizes.h>
+
+ #include <bcm63xx_nvram.h>
+
+@@ -35,6 +36,8 @@ struct bcm963xx_nvram {
+ u32 checksum_high;
+ };
+
++#define BCM63XX_DEFAULT_PSI_SIZE SZ_64K
++
+ static struct bcm963xx_nvram nvram;
+ static int mac_addr_used;
+
+@@ -104,3 +107,13 @@ int bcm63xx_nvram_get_mac_address(u8 *ma
+ return 0;
+ }
+ EXPORT_SYMBOL(bcm63xx_nvram_get_mac_address);
++
++unsigned int bcm63xx_nvram_get_psi_size(void)
++{
++ /* max is 64k, but some vendors use higher values */
++ if (nvram.psi_size > 0 && nvram.psi_size <= 512)
++ return nvram.psi_size * SZ_1K;
++
++ return BCM63XX_DEFAULT_PSI_SIZE;
++}
++EXPORT_SYMBOL(bcm63xx_nvram_get_psi_size);
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h
+@@ -30,4 +30,11 @@ u8 *bcm63xx_nvram_get_name(void);
+ */
+ int bcm63xx_nvram_get_mac_address(u8 *mac);
+
++/**
++ * bcm63xx_nvram_get_psi_size() - returns the size of the PSI area
++ *
++ * Returns the size of the Persitent Storage Information area in bytes.
++ */
++unsigned int bcm63xx_nvram_get_psi_size(void);
++
+ #endif /* BCM63XX_NVRAM_H */