Re: [PATCH v8 6/6] mmc: sh_mobile_sdhi: Add tuning support

[Wolfram Sang <wsa@the-dreams.de>]

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> Oddly enough the error are only printed when I insert the SD card in the 
> mmc0 slot. I can insert/eject the card multiple times in mmc1 and no 
> error but the first insertion in mmc0 and boom. Only difference I can 
> see are the clock speed between mmc0 and mmc1.

Can you try this patch?

From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Sun, 13 Nov 2016 11:10:09 +0100
Subject: [PATCH] pinctrl: pfc: r8a7795: WIP: hardcode TDSEL value

Otherwise, AC-180M won't get probed with SDR50 and EMMY-W1 has more
tuning errors with SDR104.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/pinctrl/sh-pfc/pfc-r8a7795.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
index 3f58bfd676ce94..3e3f7585efe8b3 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
@@ -5416,6 +5416,9 @@ static int r8a7795_pinmux_init(struct sh_pfc *pfc)
 		pr_info("%s: R-Car H3 >= ES2.0\n", __func__);
 		// FIXME Fixup r8a7795_pinmux_info for ES2.0
 	}
+
+#define TDSEL 0xe60603c0
+	sh_pfc_write_reg(pfc, TDSEL, 32, 0xc3);
 	return 0;
 }
 
-- 
2.10.2



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