u-boot/drivers/mtd
Cyrille Pitchen 9bcb018870 Revert "sf: Fix quad bit set for micron devices"
This reverts commit c56ae7519f.

Once the 'Quad Enable' bit is cleared in their Enhanced Volatile
Configuration Register (EVCR), Micron memories expect ALL commands to use
the SPI 4-4-4 protocol. Commands using SPI 1-y-z protocols are no longer
accepted.

Within the reverted commit, the write_evcr() function is implemented using
the spi_flash_write_common(), which is a shortcut for the
[ spi_flash_cmd_write_enable(), spi_flash_cmd_write(),
spi_flash_cmd_wait_ready() ] sequence.

Since the internal state of the Micron memory has been changed when the
spi_flash_cmd_write() function completes, the later call of the
spi_flash_cmd_wait_ready() function fails.

Indeed the SPI controller driver is not aware of the SPI protocol switch.

Further patches will fix the support of Micron QSPI memories.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
[Rebase on master, use JEDEC_MFR(info) in place of idcode0]
Signed-off-by: Jagan Teki <jagan@openedev.com>
2016-12-15 18:33:16 +01:00
..
nand NAND: davinci: add support for NAND chips with 16 bits bus 2016-12-03 13:21:15 -05:00
onenand treewide: replace #include <asm/errno.h> with <linux/errno.h> 2016-09-23 17:55:42 -04:00
spi Revert "sf: Fix quad bit set for micron devices" 2016-12-15 18:33:16 +01:00
ubi kconfig: introduce kconfig for UBI 2016-09-26 13:24:43 -04:00
ubispl spl: Lightweight UBI and UBI fastmap support 2016-07-22 09:53:00 -04:00
altera_qspi.c altera_qspi: allow ctrl-c to abort the erase ops 2015-12-28 09:32:43 +08:00
at45.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
cfi_flash.c mtd: cfi_flash: fix indentation 2016-12-04 13:55:01 -05:00
cfi_mtd.c treewide: replace #include <asm/errno.h> with <linux/errno.h> 2016-09-23 17:55:42 -04:00
dataflash.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
ftsmc020.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
jedec_flash.c mtd: Handle 29LV800BT 2014-11-19 08:48:41 +01:00
Kconfig kconfig: introduce kconfig for UBI 2016-09-26 13:24:43 -04:00
Makefile drivers: mtd: add Microchip PIC32 internal non-CFI flash driver. 2016-05-21 01:25:50 +02:00
mtd-uclass.c dm: implement a MTD uclass 2015-11-12 08:26:58 +08:00
mtd_uboot.c mtd: uboot: Add meaningful error message 2015-11-12 13:17:28 -05:00
mtdconcat.c kbuild: force to define __UBOOT__ in all the C sources 2014-09-16 12:23:56 -04:00
mtdcore.c compat: Remove is_power_of_2() definition 2015-11-05 16:46:59 -05:00
mtdcore.h mtd, ubi, ubifs: resync with Linux-3.14 2014-08-25 19:25:55 -04:00
mtdpart.c treewide: replace #include <asm/errno.h> with <linux/errno.h> 2016-09-23 17:55:42 -04:00
mw_eeprom.c Update i386 code (sc520_cdp) 2008-09-09 11:48:53 +02:00
pic32_flash.c drivers: mtd: add Microchip PIC32 internal non-CFI flash driver. 2016-05-21 01:25:50 +02:00
st_smi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
stm32_flash.c stm32: stm32_flash: add memory barrier during flash write 2016-04-11 20:48:23 -04:00
stm32_flash.h stm32: stm32f4: move flash driver to mtd driver location 2016-03-26 18:49:28 -04:00