[U-Boot] [PATCH 2/2] spi-nor: spi-nor-ids: Disable SPI_NOR_4B_OPCODES for n25q512* and n25q256*

[Simon Goldschmidt]

Vignesh Raghavendra <vigneshr at ti.com> schrieb am Di., 10. Sep. 2019, 19:07:

> Not all variants of n25q256* and n25q512* support 4 Byte stateless
> addressing opcodes and there is no easy way to discover at runtime
> whether the flash supports this feature or not.
> Therefore don't set SPI_NOR_4B_OPCODES for these flashes.
>

I have one of those that supports 4 Byte opposes and would be glad if I
could use them. Is there any chance of flagging the devicetree or something
that enables them?

Regards,
Simon


> Signed-off-by: Vignesh Raghavendra <vigneshr at ti.com>
> For n25q512ax3:
> Tested-by: Eugeniy Paltsev <paltsev at synopsys.com>
> ---
>  drivers/mtd/spi/spi-nor-ids.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
> index f32a6c7d464b..5a7fe07c8309 100644
> --- a/drivers/mtd/spi/spi-nor-ids.c
> +++ b/drivers/mtd/spi/spi-nor-ids.c
> @@ -161,10 +161,10 @@ 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("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 | SPI_NOR_4B_OPCODES) },
> -       { INFO("mt25qu512a (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("mt25qu512a (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) },
> --
> 2.23.0
>
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