On Tue, Jun 11, 2013 at 12:23 PM, Jagannadha Sutradharudu Teki < jagannadha.sutradharudu-t...@xilinx.com> wrote:
> This patch provides support to read a flash extended address > register for winbond and stmicro SPI flashes. > > Signed-off-by: Jagannadha Sutradharudu Teki <jaga...@xilinx.com> > Reviewed-by: Simon Glass <s...@chromium.org> Same comment as previous patch. > --- > Changes for v3: > - none > Changes for v2: > - none > > drivers/mtd/spi/spi_flash.c | 2 ++ > drivers/mtd/spi/spi_flash_internal.h | 1 + > 2 files changed, 3 insertions(+) > > diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c > index 05d1792..66b6b14 100644 > --- a/drivers/mtd/spi/spi_flash.c > +++ b/drivers/mtd/spi/spi_flash.c > @@ -321,6 +321,8 @@ int spi_flash_cmd_bankaddr_read(struct spi_flash > *flash, void *data) > > if (idcode0 == 0x01) { > cmd = CMD_BANKADDR_BRRD; > + } else if ((idcode0 == 0xef) || (idcode0 == 0x20)) { > + cmd = CMD_EXTNADDR_RDEAR; > } else { > printf("SF: Unsupported bank addr read %02x\n", idcode0); > return -1; > diff --git a/drivers/mtd/spi/spi_flash_internal.h > b/drivers/mtd/spi/spi_flash_internal.h > index de1a0df..1b29e2d 100644 > --- a/drivers/mtd/spi/spi_flash_internal.h > +++ b/drivers/mtd/spi/spi_flash_internal.h > @@ -32,6 +32,7 @@ > #define CMD_BANKADDR_BRWR 0x17 > #define CMD_BANKADDR_BRRD 0x16 > #define CMD_EXTNADDR_WREAR 0xC5 > +#define CMD_EXTNADDR_RDEAR 0xC8 > > /* Common status */ > #define STATUS_WIP 0x01 > -- > 1.8.3 > > >
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