[PATCH 01/10] mtd: spi-nor: aspeed: fix the AST2400 SMC window size

Marek Vasut marek.vasut at gmail.com
Thu Apr 6 12:17:30 PDT 2017


On 04/06/2017 06:56 PM, Cédric Le Goater wrote:
> The window of the Aspeed AST2400 SMC Controller to map chips on the
> AHB Bus has a 256MB size. 64MB is the default size for the first chip
> select and not the full window range: [ 0x20000000 - 0x2FFFFFFF ].
> 
> Signed-off-by: Cédric Le Goater <clg at kaod.org>
> ---
>  drivers/mtd/spi-nor/aspeed-smc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/spi-nor/aspeed-smc.c b/drivers/mtd/spi-nor/aspeed-smc.c
> index 56051d30f000..aa2c647c8507 100644
> --- a/drivers/mtd/spi-nor/aspeed-smc.c
> +++ b/drivers/mtd/spi-nor/aspeed-smc.c
> @@ -48,7 +48,7 @@ static void aspeed_smc_chip_set_4b_spi_2400(struct aspeed_smc_chip *chip);
>  static void aspeed_smc_chip_set_4b(struct aspeed_smc_chip *chip);
>  
>  static const struct aspeed_smc_info fmc_2400_info = {
> -	.maxsize = 64 * 1024 * 1024,
> +	.maxsize = 256 * 1024 * 1024,

How does the second part of reg property in DT relate to this ?
DT binding example has it set to 0x02000000 = 32 MiB ...

>  	.nce = 5,
>  	.hastype = true,
>  	.we0 = 16,
> 


-- 
Best regards,
Marek Vasut



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