uboot-lantiq: upgrade to 2013.01

[openwrt.git] / package / boot / uboot-lantiq / patches / 0008-sf-eon-add-support-for-4-byte-address-mode.patch

diff --git a/package/boot/uboot-lantiq/patches/0008-sf-eon-add-support-for-4-byte-address-mode.patch b/package/boot/uboot-lantiq/patches/0008-sf-eon-add-support-for-4-byte-address-mode.patch
new file mode 100644 (file)
index 0000000..c037a86
--- /dev/null
+++ b/package/boot/uboot-lantiq/patches/0008-sf-eon-add-support-for-4-byte-address-mode.patch
@@ -0,0 +1,43 @@
+From 37254e3284f61ea495f73a78b7c8efae983781e2 Mon Sep 17 00:00:00 2001
+From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
+Date: Wed, 7 Nov 2012 14:10:07 +0100
+Subject: sf: eon: add support for 4-byte address mode
+
+Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
+
+--- a/drivers/mtd/spi/eon.c
++++ b/drivers/mtd/spi/eon.c
+@@ -10,6 +10,8 @@
+ 
+ #include "spi_flash_internal.h"
+ 
++#define EN25XX_EN4B           0xb7    /* Enter 4-byte mode */
++
+ struct eon_spi_flash_params {
+       u16 idcode;
+       u16 nr_sectors;
+@@ -29,6 +31,13 @@ static const struct eon_spi_flash_params
+       },
+ };
+ 
++static __maybe_unused int eon_set_4byte_mode(struct spi_flash *flash)
++{
++      struct spi_slave *spi = flash->spi;
++
++      return spi_flash_cmd(spi, EN25XX_EN4B, NULL, 0);
++}
++
+ int spi_flash_probe_eon(struct spi_flash *flash, u8 *idcode)
+ {
+       const struct eon_spi_flash_params *params;
+@@ -57,5 +66,10 @@ int spi_flash_probe_eon(struct spi_flash
+       flash->size = 256 * 16
+           * params->nr_sectors;
+ 
++#ifdef CONFIG_SPI_FLASH_4BYTE_MODE
++      if (flash->size > (1 << 24))
++              flash->set_4byte_mode = eon_set_4byte_mode;
++#endif
++
+       return 1;
+ }