Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6b6d3737 authored by Angus Clark's avatar Angus Clark Committed by Brian Norris
Browse files

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: default avatarAngus Clark <angus.clark@st.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent 85bdcf6b

drivers/mtd/devices/st_spi_fsm.c

+7 −1
Original line number Diff line number Diff line
@@ -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 },