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From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-mmc@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
	"Yoshihiro Shimoda" <yoshihiro.shimoda.uh@renesas.com>,
	"Niklas Söderlund" <niklas.soderlund@ragnatech.se>,
	"Wolfram Sang" <wsa+renesas@sang-engineering.com>
Subject: [PATCH 1/3] mmc: sdhi: disallow HS400 for M3-W ES1.2 and V3H
Date: Tue,  4 Jun 2019 17:15:28 +0200	[thread overview]
Message-ID: <20190604151530.7023-2-wsa+renesas@sang-engineering.com> (raw)
In-Reply-To: <20190604151530.7023-1-wsa+renesas@sang-engineering.com>

Our HW engineers informed us that HS400 is not working on these SoC
revisions.

Fixes: 0f4e2054c971 ("mmc: renesas_sdhi: disable HS400 on H3 ES1.x and M3-W ES1.[012]")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---

This one should go back to stable.

 drivers/mmc/host/renesas_sdhi_core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index db73f9f1b186..e98ba6cf6c13 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -620,11 +620,17 @@ static const struct renesas_sdhi_quirks sdhi_quirks_h3_es2 = {
 	.hs400_4taps = true,
 };
 
+static const struct renesas_sdhi_quirks sdhi_quirks_nohs400 = {
+	.hs400_disabled = true,
+};
+
 static const struct soc_device_attribute sdhi_quirks_match[]  = {
 	{ .soc_id = "r8a7795", .revision = "ES1.*", .data = &sdhi_quirks_h3_m3w_es1 },
 	{ .soc_id = "r8a7795", .revision = "ES2.0", .data = &sdhi_quirks_h3_es2 },
 	{ .soc_id = "r8a7796", .revision = "ES1.0", .data = &sdhi_quirks_h3_m3w_es1 },
 	{ .soc_id = "r8a7796", .revision = "ES1.1", .data = &sdhi_quirks_h3_m3w_es1 },
+	{ .soc_id = "r8a7796", .revision = "ES1.2", .data = &sdhi_quirks_h3_m3w_es1 },
+	{ .soc_id = "r8a77980", .data = &sdhi_quirks_nohs400 },
 	{ /* Sentinel. */ },
 };
 
-- 
2.11.0


  reply	other threads:[~2019-06-04 15:15 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-04 15:15 [PATCH 0/3] mmc: sdhi: improve HS400 quirk handling Wolfram Sang
2019-06-04 15:15 ` Wolfram Sang [this message]
2019-06-04 15:28   ` [PATCH 1/3] mmc: sdhi: disallow HS400 for M3-W ES1.2 and V3H Geert Uytterhoeven
2019-06-04 15:41     ` Wolfram Sang
2019-06-05  8:31   ` Fabrizio Castro
2019-06-05  8:39     ` Geert Uytterhoeven
2019-06-04 15:15 ` [PATCH 2/3] mmc: sdhi: improve quirk descriptions Wolfram Sang
2019-06-04 15:15 ` [PATCH 3/3] mmc: sdhi: remove unneeded initialization Wolfram Sang
2019-06-10 12:41 ` [PATCH 0/3] mmc: sdhi: improve HS400 quirk handling Niklas Söderlund

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