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openwrt-R7800-nss/target/linux/ramips/patches-6.12/831-03-mmc-mtk-sd-use-default-PATCH_BIT1-2-values-for-mt762.patch
2025-07-12 16:47:58 +02:00

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From: Shiji Yang <yangshiji66@outlook.com>
Date: Sat, 24 May 2025 15:53:26 +0800
Subject: [PATCH 3/3] mmc: mtk-sd: use default PATCH_BIT1/2 values for mt7620
The definitions of these two registers seem to be slightly different
from other variants. Use their default values to follow the vendor
SDK driver behaviors.
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
---
drivers/mmc/host/mtk-sd.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -1804,9 +1804,11 @@ static void msdc_init_hw(struct msdc_hos
}
writel(0, host->base + MSDC_IOCON);
sdr_set_field(host->base + MSDC_IOCON, MSDC_IOCON_DDLSEL, 0);
- writel(0x403c0046, host->base + MSDC_PATCH_BIT);
- sdr_set_field(host->base + MSDC_PATCH_BIT, MSDC_CKGEN_MSDC_DLY_SEL, 1);
- writel(0xffff4089, host->base + MSDC_PATCH_BIT1);
+ if (!host->dev_comp->mips_mt762x) {
+ writel(0x403c0046, host->base + MSDC_PATCH_BIT);
+ sdr_set_field(host->base + MSDC_PATCH_BIT, MSDC_CKGEN_MSDC_DLY_SEL, 1);
+ writel(0xffff4089, host->base + MSDC_PATCH_BIT1);
+ }
sdr_set_bits(host->base + EMMC50_CFG0, EMMC50_CFG_CFCSTS_SEL);
if (host->dev_comp->stop_clk_fix) {