From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Wed, 26 Mar 2014 16:39:20 +0000 Subject: [PATCH 06/15] mtd: st_spi_fsm: Add support for Macronix MX25L3255E In-Reply-To: <1395851969-13520-1-git-send-email-lee.jones@linaro.org> References: <1395851969-13520-1-git-send-email-lee.jones@linaro.org> Message-ID: <1395851969-13520-7-git-send-email-lee.jones@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Angus Clark This patch adds support for the Macronix MX25L3255E device. Unlike the other Macronix devices we have seen, this device supports WRITE_1_4_4 at reasonable frequencies. Rather than masking out WRITE_1_4_4 support altogether, we now rely on the table parameters to indicate whether or not WRITE_1_4_4 should be used. Signed-off-by: Angus Clark Signed-off-by: Lee Jones --- drivers/mtd/devices/st_spi_fsm.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c index 148c86f..8c56b94 100644 --- a/drivers/mtd/devices/st_spi_fsm.c +++ b/drivers/mtd/devices/st_spi_fsm.c @@ -372,14 +372,20 @@ static struct flash_info flash_types[] = { { "m25px32", 0x207116, 0, 64 * 1024, 64, M25PX_FLAG, 75, NULL }, { "m25px64", 0x207117, 0, 64 * 1024, 128, M25PX_FLAG, 75, NULL }, + /* Macronix MX25xxx + * - Support for 'FLASH_FLAG_WRITE_1_4_4' is omitted for devices + * where operating frequency must be reduced. + */ #define MX25_FLAG (FLASH_FLAG_READ_WRITE | \ FLASH_FLAG_READ_FAST | \ FLASH_FLAG_READ_1_1_2 | \ FLASH_FLAG_READ_1_2_2 | \ FLASH_FLAG_READ_1_1_4 | \ - FLASH_FLAG_READ_1_4_4 | \ FLASH_FLAG_SE_4K | \ FLASH_FLAG_SE_32K) + { "mx25l3255e", 0xc29e16, 0, 64 * 1024, 64, + (MX25_FLAG | FLASH_FLAG_WRITE_1_4_4), 86, + stfsm_mx25_config}, { "mx25l25635e", 0xc22019, 0, 64*1024, 512, (MX25_FLAG | FLASH_FLAG_32BIT_ADDR | FLASH_FLAG_RESET), 70, stfsm_mx25_config }, -- 1.8.3.2