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mtd: st_spi_fsm: Add support for Macronix MX25L3255E 

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 <angus.clark@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
hifive-unleashed-5.1
Angus Clark 2014-03-26 16:39:20 +00:00 committed by Brian Norris
parent 85bdcf6b25
commit 6b6d37377c
1 changed files with 7 additions and 1 deletions
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8
drivers/mtd/devices/st_spi_fsm.c
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@ -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 },