| Message ID | 20171206025342.7266-1-Zhiqiang.Hou@nxp.com |
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mtd: m25p80: restore the addressing mode when exiting
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From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Restore the status to be compatible with legacy devices. Take Freescale eSPI boot for example, it copies (in 3 Byte addressing mode) the RCW and bootloader images from SPI flash without firing a reset signal previously, so the reboot command will fail without reseting the addressing mode of SPI flash. Hou Zhiqiang (2): mtd: spi-nor: add an API to restore the status of SPI flash chip mtd: m25p80: restore the status of SPI flash when exiting Documentation/mtd/spi-nor.txt | 3 +++ drivers/mtd/devices/m25p80.c | 9 +++++++++ drivers/mtd/spi-nor/spi-nor.c | 10 ++++++++++ include/linux/mtd/spi-nor.h | 6 ++++++ 4 files changed, 28 insertions(+)