[U-Boot] [PATCH RFT v2 1/3] spi-nor: spi-nor-ids: Disable SPI_NOR_4B_OPCODES for n25q512* and n25q256*

Tudor.Ambarus at microchip.com Tudor.Ambarus at microchip.com
Tue Oct 1 04:58:50 UTC 2019



On 09/27/2019 07:43 AM, Vignesh Raghavendra wrote:
> External E-Mail
> 
> 
> Older variants of n25q256* and n25q512* do not support 4 Byte stateless

nit: drop "older variants of". Looks like the latest datasheet still require
ENTER and EXIT 4-byte address mode commands.

> addressing opcodes. Therefore drop SPI_NOR_4B_OPCODES flag from these
> entries.
> 
> Signed-off-by: Vignesh Raghavendra <vigneshr at ti.com>

Reviewed-by: Tudor Ambarus <tudor.ambarus at microchip.com>

> ---
>  drivers/mtd/spi/spi-nor-ids.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
> index df0643ed1d47..bb67661b40d2 100644
> --- a/drivers/mtd/spi/spi-nor-ids.c
> +++ b/drivers/mtd/spi/spi-nor-ids.c
> @@ -161,12 +161,12 @@ const struct flash_info spi_nor_ids[] = {
>  	{ INFO("n25q064a",    0x20bb17, 0, 64 * 1024,  128, SECT_4K | SPI_NOR_QUAD_READ) },
>  	{ INFO("n25q128a11",  0x20bb18, 0, 64 * 1024,  256, SECT_4K | SPI_NOR_QUAD_READ) },
>  	{ INFO("n25q128a13",  0x20ba18, 0, 64 * 1024,  256, SECT_4K | SPI_NOR_QUAD_READ) },
> -	{ INFO("n25q256a",    0x20ba19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
> -	{ INFO("n25q256ax1",  0x20bb19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
> +	{ INFO("n25q256a",    0x20ba19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
> +	{ INFO("n25q256ax1",  0x20bb19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_QUAD_READ) },
>  	{ INFO6("mt25qu512a",  0x20bb20, 0x104400, 64 * 1024, 1024,
>  		 SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
> -	{ INFO("n25q512a",    0x20bb20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
> -	{ INFO("n25q512ax3",  0x20ba20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
> +	{ INFO("n25q512a",    0x20bb20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },
> +	{ INFO("n25q512ax3",  0x20ba20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },
>  	{ INFO("n25q00",      0x20ba21, 0, 64 * 1024, 2048, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ | NO_CHIP_ERASE) },
>  	{ INFO("n25q00a",     0x20bb21, 0, 64 * 1024, 2048, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ | NO_CHIP_ERASE) },
>  	{ INFO("mt25qu02g",   0x20bb22, 0, 64 * 1024, 4096, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ | NO_CHIP_ERASE) },
> 


More information about the U-Boot mailing list