diff options
Diffstat (limited to 'package/boot/uboot-lantiq/patches/0013-sf-macronix-add-support-for-4-byte-address-mode.patch')
| -rw-r--r-- | package/boot/uboot-lantiq/patches/0013-sf-macronix-add-support-for-4-byte-address-mode.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/package/boot/uboot-lantiq/patches/0013-sf-macronix-add-support-for-4-byte-address-mode.patch b/package/boot/uboot-lantiq/patches/0013-sf-macronix-add-support-for-4-byte-address-mode.patch new file mode 100644 index 0000000..70015c9 --- /dev/null +++ b/package/boot/uboot-lantiq/patches/0013-sf-macronix-add-support-for-4-byte-address-mode.patch @@ -0,0 +1,44 @@ +From 207662a9270cc542709fbab0d25fbc361b39748c Mon Sep 17 00:00:00 2001 +From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> +Date: Wed, 7 Nov 2012 15:13:49 +0100 +Subject: sf: macronix: add support for 4-byte address mode + +Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> + +--- a/drivers/mtd/spi/macronix.c ++++ b/drivers/mtd/spi/macronix.c +@@ -35,6 +35,8 @@ + + #include "spi_flash_internal.h" + ++#define MX25XX_EN4B 0xb7 /* Enter 4-byte mode */ ++ + struct macronix_spi_flash_params { + u16 idcode; + u16 nr_blocks; +@@ -79,6 +81,13 @@ static const struct macronix_spi_flash_p + }, + }; + ++static __maybe_unused int macronix_set_4byte_mode(struct spi_flash *flash) ++{ ++ struct spi_slave *spi = flash->spi; ++ ++ return spi_flash_cmd(spi, MX25XX_EN4B, NULL, 0); ++} ++ + int spi_flash_probe_macronix(struct spi_flash *flash, u8 *idcode) + { + const struct macronix_spi_flash_params *params; +@@ -106,6 +115,11 @@ int spi_flash_probe_macronix(struct spi_ + flash->sector_size = 256 * 16 * 16; + flash->size = flash->sector_size * params->nr_blocks; + ++#ifdef CONFIG_SPI_FLASH_4BYTE_MODE ++ if (flash->size > (1 << 24)) ++ flash->set_4byte_mode = macronix_set_4byte_mode; ++#endif ++ + /* Clear BP# bits for read-only flash */ + spi_flash_cmd_write_status(flash, 0); + |