| Message ID | 5a08be5f-dbf5-4aaf-a76c-2d973e571788@CO1EHSMHS003.ehs.local |
|---|---|
| State | Superseded |
| Delegated to: | Jagannadha Sutradharudu Teki |
| Headers | show |
On Tue, Jun 11, 2013 at 12:23 PM, Jagannadha Sutradharudu Teki < jagannadha.sutradharudu-teki@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 <jaganna@xilinx.com> > Reviewed-by: Simon Glass <sjg@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 > > >
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
This patch provides support to read a flash extended address register for winbond and stmicro SPI flashes. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> --- 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(+)