On 2024/7/24 14:55, Jonas Karlman wrote:
Hosts capable of 8-bit can also do 4 bits, fix use of 4-bit mode when 8-bit mode is supported. This fixes use of 1-bit mode with SD NAND on ROCK Pi S using the DT in v6.11-rc1 that chage to use 8-bit bus to also support eMMC. With this 4-bit mode is used with SD NAND and 8-bit mode with eMMC, same as in Linux kernel. Signed-off-by: Jonas Karlman <jo...@kwiboo.se>
Reviewed-by: Kever Yang <kever.y...@rock-chips.com> Thanks, - Kever
--- drivers/mmc/rockchip_dw_mmc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mmc/rockchip_dw_mmc.c b/drivers/mmc/rockchip_dw_mmc.c index 1a10b7057a47..549fb80f1988 100644 --- a/drivers/mmc/rockchip_dw_mmc.c +++ b/drivers/mmc/rockchip_dw_mmc.c @@ -159,6 +159,10 @@ static int rockchip_dwmmc_probe(struct udevice *dev) host->mmc->dev = dev; upriv->mmc = host->mmc;+ /* Hosts capable of 8-bit can also do 4 bits */+ if (host->buswidth == 8) + plat->cfg.host_caps |= MMC_MODE_4BIT; + return dwmci_probe(dev); }
