diff options
Diffstat (limited to 'package/boot/uboot-lantiq/patches/.svn/text-base/0006-sf-add-generic-support-for-4-byte-address-mode.patch.svn-base')
| -rw-r--r-- | package/boot/uboot-lantiq/patches/.svn/text-base/0006-sf-add-generic-support-for-4-byte-address-mode.patch.svn-base | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/package/boot/uboot-lantiq/patches/.svn/text-base/0006-sf-add-generic-support-for-4-byte-address-mode.patch.svn-base b/package/boot/uboot-lantiq/patches/.svn/text-base/0006-sf-add-generic-support-for-4-byte-address-mode.patch.svn-base new file mode 100644 index 0000000..1623b15 --- /dev/null +++ b/package/boot/uboot-lantiq/patches/.svn/text-base/0006-sf-add-generic-support-for-4-byte-address-mode.patch.svn-base @@ -0,0 +1,161 @@ +From fb9ed0ef6f0ba6b6535c64dcfcf45c161723e56f Mon Sep 17 00:00:00 2001 +From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> +Date: Tue, 6 Nov 2012 19:31:38 +0100 +Subject: sf: add generic support for 4-byte address mode + +Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> + +--- a/drivers/mtd/spi/spi_flash.c ++++ b/drivers/mtd/spi/spi_flash.c +@@ -18,19 +18,35 @@ + static void spi_flash_addr(struct spi_flash *flash, u32 addr, u8 *cmd, u8 *cmd_len) + { + /* cmd[0] is actual command */ +- cmd[1] = addr >> 16; +- cmd[2] = addr >> 8; +- cmd[3] = addr >> 0; +- *cmd_len = 4; ++ if (spi_flash_use_4byte_mode(flash)) { ++ cmd[1] = addr >> 24; ++ cmd[2] = addr >> 16; ++ cmd[3] = addr >> 8; ++ cmd[4] = addr >> 0; ++ *cmd_len = 5; ++ } else { ++ cmd[1] = addr >> 16; ++ cmd[2] = addr >> 8; ++ cmd[3] = addr >> 0; ++ *cmd_len = 4; ++ } + } + + static void spi_flash_page_addr(struct spi_flash *flash, u32 page_addr, u32 byte_addr, u8 *cmd, u8 *cmd_len) + { + /* cmd[0] is actual command */ +- cmd[1] = page_addr >> 8; +- cmd[2] = page_addr >> 0; +- cmd[3] = byte_addr; +- *cmd_len = 4; ++ if (spi_flash_use_4byte_mode(flash)) { ++ cmd[1] = page_addr >> 16; ++ cmd[2] = page_addr >> 8; ++ cmd[3] = page_addr >> 0; ++ cmd[4] = byte_addr; ++ *cmd_len = 5; ++ } else { ++ cmd[1] = page_addr >> 8; ++ cmd[2] = page_addr >> 0; ++ cmd[3] = byte_addr; ++ *cmd_len = 4; ++ } + } + + static int spi_flash_read_write(struct spi_slave *spi, +@@ -81,7 +97,7 @@ int spi_flash_cmd_write_multi(struct spi + unsigned long page_addr, byte_addr, page_size; + size_t chunk_len, actual; + int ret; +- u8 cmd[4], cmd_len; ++ u8 cmd[5], cmd_len; + + page_size = flash->page_size; + page_addr = offset / page_size; +@@ -99,8 +115,8 @@ int spi_flash_cmd_write_multi(struct spi + + spi_flash_page_addr(flash, page_addr, byte_addr, cmd, &cmd_len); + +- debug("PP: 0x%p => cmd = { 0x%02x 0x%02x%02x%02x } chunk_len = %zu\n", +- buf + actual, cmd[0], cmd[1], cmd[2], cmd[3], chunk_len); ++ debug("PP: 0x%p => cmd = { 0x%02x 0x%02x%02x%02x%02x } chunk_len = %zu\n", ++ buf + actual, cmd[0], cmd[1], cmd[2], cmd[3], cmd[4], chunk_len); + + ret = spi_flash_cmd_write_enable(flash); + if (ret < 0) { +@@ -146,7 +162,7 @@ int spi_flash_read_common(struct spi_fla + int spi_flash_cmd_read_fast(struct spi_flash *flash, u32 offset, + size_t len, void *data) + { +- u8 cmd[5], cmd_len; ++ u8 cmd[6], cmd_len; + + cmd[0] = CMD_READ_ARRAY_FAST; + spi_flash_addr(flash, offset, cmd, &cmd_len); +@@ -202,7 +218,7 @@ int spi_flash_cmd_erase(struct spi_flash + { + u32 start, end, erase_size; + int ret; +- u8 cmd[4], cmd_len; ++ u8 cmd[5], cmd_len; + + erase_size = flash->sector_size; + if (offset % erase_size || len % erase_size) { +@@ -227,8 +243,8 @@ int spi_flash_cmd_erase(struct spi_flash + spi_flash_addr(flash, offset, cmd, &cmd_len); + offset += erase_size; + +- debug("SF: erase %2x %2x %2x %2x (%x)\n", cmd[0], cmd[1], +- cmd[2], cmd[3], offset); ++ debug("SF: erase %2x %2x %2x %2x %2x (%x)\n", cmd[0], cmd[1], ++ cmd[2], cmd[3], cmd[4], offset); + + ret = spi_flash_cmd_write_enable(flash); + if (ret) +@@ -409,6 +425,12 @@ int spi_flash_probe_spl(struct spi_flash + goto err_manufacturer_probe; + } + ++ ret = spi_flash_set_4byte_mode(flash); ++ if (ret) { ++ debug("SF: Failed to enable 4 byte mode: %d\n", ret); ++ goto err_manufacturer_probe; ++ } ++ + spi_release_bus(spi); + + return 0; +--- a/drivers/mtd/spi/spi_flash_internal.h ++++ b/drivers/mtd/spi/spi_flash_internal.h +@@ -97,6 +97,31 @@ int spi_flash_cmd_wait_ready(struct spi_ + /* Erase sectors. */ + int spi_flash_cmd_erase(struct spi_flash *flash, u32 offset, size_t len); + ++#ifdef CONFIG_SPI_FLASH_4BYTE_MODE ++static inline int spi_flash_use_4byte_mode(struct spi_flash *flash) ++{ ++ return NULL != flash->set_4byte_mode; ++} ++ ++static inline int spi_flash_set_4byte_mode(struct spi_flash *flash) ++{ ++ if (spi_flash_use_4byte_mode(flash)) ++ return flash->set_4byte_mode(flash); ++ ++ return 0; ++} ++#else ++static inline int spi_flash_use_4byte_mode(struct spi_flash *flash) ++{ ++ return 0; ++} ++ ++static inline int spi_flash_set_4byte_mode(struct spi_flash *flash) ++{ ++ return 0; ++} ++#endif ++ + /* Manufacturer-specific probe functions */ + int spi_flash_probe_spansion(struct spi_flash *flash, u8 *idcode); + int spi_flash_probe_atmel(struct spi_flash *flash, u8 *idcode); +--- a/include/spi_flash.h ++++ b/include/spi_flash.h +@@ -46,6 +46,9 @@ struct spi_flash { + size_t len, const void *buf); + int (*erase)(struct spi_flash *flash, u32 offset, + size_t len); ++#ifdef CONFIG_SPI_FLASH_4BYTE_MODE ++ int (*set_4byte_mode)(struct spi_flash *flash); ++#endif + }; + + struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, |