diff options
| author | Marek Vasut <marek.vasut@gmail.com> | 2017-09-05 13:11:14 (GMT) |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-09-08 00:04:40 (GMT) |
| commit | 183f5fd3caec9266432a7cbd50f59cec8bbddc6a (patch) | |
| tree | 3778e664ad6d12a7900bd185e2dbe9043c617b5a /board/renesas/ulcb | |
| parent | ec6bc928bbe852a5dae242d24cfd28f868f6286c (diff) | |
| download | u-boot-183f5fd3caec9266432a7cbd50f59cec8bbddc6a.tar.xz | |
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 <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Diffstat (limited to 'board/renesas/ulcb')
| -rw-r--r-- | board/renesas/ulcb/ulcb.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/board/renesas/ulcb/ulcb.c b/board/renesas/ulcb/ulcb.c index 2b6cc61..dc23228 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 */ |