From: Marek Vasut Date: Tue, 5 Sep 2017 13:11:14 +0000 (+0200) Subject: ARM: rmobile: Fix SD divider settings on Gen3 X-Git-Tag: v2017.09~18 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=183f5fd3caec9266432a7cbd50f59cec8bbddc6a;p=u-boot ARM: rmobile: Fix SD divider settings on Gen3 On RCar M3 and on RCar H3 newer than and not including ES1.0, the SD clock must be divided by 4 rather than 2 because a hardware workaround present only in the H3 ES1.0 has been removed from these chips. U-Boot currently only supports M3 and H3 ES 2.0 and newer, so configure the SD pre-divider to 4 to prevent SD instability. Signed-off-by: Marek Vasut Cc: Nobuhiro Iwamatsu --- diff --git a/board/renesas/salvator-x/salvator-x.c b/board/renesas/salvator-x/salvator-x.c index 2695de5dbf..e260117802 100644 --- a/board/renesas/salvator-x/salvator-x.c +++ b/board/renesas/salvator-x/salvator-x.c @@ -74,10 +74,10 @@ int board_early_init_f(void) /* SDHI0, 3 */ mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SD0_MSTP314 | SD3_MSTP311); - writel(0, SD0CKCR); - writel(0, SD1CKCR); - writel(0, SD2CKCR); - writel(0, SD3CKCR); + writel(1, SD0CKCR); + writel(1, SD1CKCR); + writel(1, SD2CKCR); + writel(1, SD3CKCR); #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH) /* DVFS for reset */ diff --git a/board/renesas/ulcb/ulcb.c b/board/renesas/ulcb/ulcb.c index 2b6cc612c8..dc23228f4f 100644 --- a/board/renesas/ulcb/ulcb.c +++ b/board/renesas/ulcb/ulcb.c @@ -72,10 +72,10 @@ int board_early_init_f(void) /* SDHI0 */ mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SD0_MSTP314); - writel(0, SD0CKCR); - writel(0, SD1CKCR); - writel(0, SD2CKCR); - writel(0, SD3CKCR); + writel(1, SD0CKCR); + writel(1, SD1CKCR); + writel(1, SD2CKCR); + writel(1, SD3CKCR); #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH) /* DVFS for reset */