1 files changed, 55 insertions, 0 deletions
diff --git a/package/boot/uboot-lantiq/patches/.svn/text-base/0011-sf-spansion-add-support-for-4-byte-address-mode.patch.svn-base b/package/boot/uboot-lantiq/patches/.svn/text-base/0011-sf-spansion-add-support-for-4-byte-address-mode.patch.svn-base
new file mode 100644
index 0000000..9471d47
--- /dev/null
+++ b/package/boot/uboot-lantiq/patches/.svn/text-base/0011-sf-spansion-add-support-for-4-byte-address-mode.patch.svn-base
@@ -0,0 +1,55 @@
+From 0add8e5c60961d2b99174610df8d3d9d6d192b74 Mon Sep 17 00:00:00 2001
+From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
+Date: Wed, 7 Nov 2012 14:16:11 +0100
+Subject: sf: spansion: add support for 4-byte address mode
+
+Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
+
+--- a/drivers/mtd/spi/spansion.c
++++ b/drivers/mtd/spi/spansion.c
+@@ -31,6 +31,10 @@
+ 
+ #include "spi_flash_internal.h"
+ 
++#define S25FLXX_BRRD		0x16		/* Read Bank Register */
++#define S25FLXX_BRWR		0x17		/* Write Bank Register */
++#define S25FLXX_BAR_EXTADD	(1 << 7)	/* Extended address enable */
++
+ struct spansion_spi_flash_params {
+ 	u16 idcode1;
+ 	u16 idcode2;
+@@ -112,6 +116,23 @@ static const struct spansion_spi_flash_p
+ 	},
+ };
+ 
++static __maybe_unused int spansion_set_4byte_mode(struct spi_flash *flash)
++{
++	struct spi_slave *spi = flash->spi;
++	u8 bar, cmd;
++	int err;
++
++	cmd = S25FLXX_BRRD;
++	err = spi_flash_cmd(spi, cmd, &bar, 1);
++	if (err)
++		return err;
++
++	bar |= S25FLXX_BAR_EXTADD;
++	cmd = S25FLXX_BRWR;
++
++	return spi_flash_cmd_write(spi, &cmd, 1, &bar, 1);
++}
++
+ int spi_flash_probe_spansion(struct spi_flash *flash, u8 *idcode)
+ {
+ 	const struct spansion_spi_flash_params *params;
+@@ -144,5 +165,10 @@ int spi_flash_probe_spansion(struct spi_
+ 	flash->sector_size = 256 * params->pages_per_sector;
+ 	flash->size = flash->sector_size * params->nr_sectors;
+ 
++#ifdef CONFIG_SPI_FLASH_4BYTE_MODE
++	if (flash->size > (1 << 24))
++		flash->set_4byte_mode = spansion_set_4byte_mode;
++#endif
++
+ 	return 1;
+ }