Commit f583da40 authored by Wolfram Sang's avatar Wolfram Sang Committed by Ulf Hansson
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mmc: renesas_sdhi: handle M3-W ES1.2 and 1.3 revisions 



For ES1.2, add a comment explaining the situation. For ES1.3 (and
later, although unlikely), add a new entry defining it as 4tap.

Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20200423130432.9990-2-wsa+renesas@sang-engineering.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 5671ad66

drivers/mmc/host/renesas_sdhi_core.c

+6 −0
Original line number Diff line number Diff line
@@ -711,11 +711,17 @@ static const struct renesas_sdhi_quirks sdhi_quirks_nohs400 = { 
	.hs400_disabled = true,

};



/*

 * Note for r8a7796 / r8a774a1: we can't distinguish ES1.1 and 1.2 as of now.

 * So, we want to treat them equally and only have a match for ES1.2 to enforce

 * this if there ever will be a way to distinguish ES1.2.

 */

static const struct soc_device_attribute sdhi_quirks_match[]  = {

	{ .soc_id = "r8a774a1", .revision = "ES1.[012]", .data = &sdhi_quirks_4tap_nohs400 },

	{ .soc_id = "r8a7795", .revision = "ES1.*", .data = &sdhi_quirks_4tap_nohs400 },

	{ .soc_id = "r8a7795", .revision = "ES2.0", .data = &sdhi_quirks_4tap },

	{ .soc_id = "r8a7796", .revision = "ES1.[012]", .data = &sdhi_quirks_4tap_nohs400 },

	{ .soc_id = "r8a7796", .revision = "ES1.*", .data = &sdhi_quirks_4tap },

	{ .soc_id = "r8a77980", .data = &sdhi_quirks_nohs400 },

	{ /* Sentinel. */ },

};