Hi,
On Wed, Mar 26, 2014 at 07:04:50PM -0500, Felipe Balbi wrote:
> @@ -1867,6 +1879,37 @@ static inline struct omap_mmc_platform_data
> }
> #endif
>
> +static void omap_hsmmc_set_max_blk_size(struct omap_hsmmc_host *host)
> +{
> + struct mmc_host *mmc = host->mmc;
> +
> + if (of_device_is_compatible(host->dev->of_node, "ti,omap4-hsmmc")) {
> + u32 mem;
> + u32 reg;
> +
> + reg = omap_hsmmc_read_no_offset(host, OMAP_HSMMC_HL_HWINFO);
> + mem = OMAP_HSMMC_HL_HWINFO_MEM_SIZE(reg);
> +
> + switch (mem) {
> + case 1:
> + mmc->max_blk_size = 512;
> + break;
> + case 2:
> + mmc->max_blk_size = 1024;
> + break;
> + case 4:
> + /* FALLTHROUGH */
> + case 8:
> + /* FALLTHROUGH */
> + default:
> + mmc->max_blk_size = 2048;
> + break;
> + }
> + } else {
> + mmc->max_blk_size = 512; /* Block Length at max can be 1024 */
looks like here, we could read CAPA register to figure out if older
devices support bigger block sizes. According to TRM, omap3 should
support 1024 just fine.
--
balbi
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