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From 3831266fedf14ef415791a93dd03a9e637eb8b5e Mon Sep 17 00:00:00 2001
From: Weijie Gao <weijie.gao@mediatek.com>
Date: Tue, 26 Jul 2022 09:24:13 +0800
Subject: [PATCH 05/31] mmc: mediatek: add support for MediaTek MT7891/MT7986
SoCs
Add eMMC and SDXC support for MediaTek MT7981/MT7986 SoCs
Both chips support SDXC and eMMC 4.5. MT7986A supports eMMC 5.1.
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
---
drivers/mmc/mtk-sd.c | 68 ++++++++++++++++++++++++++++++++++----------
1 file changed, 53 insertions(+), 15 deletions(-)
--- a/drivers/mmc/mtk-sd.c
+++ b/drivers/mmc/mtk-sd.c
@@ -1496,7 +1496,12 @@ static void msdc_init_hw(struct msdc_hos
/* Enable data & cmd interrupts */
writel(DATA_INTS_MASK | CMD_INTS_MASK, &host->base->msdc_inten);
- writel(0, tune_reg);
+ if (host->top_base) {
+ writel(0, &host->top_base->emmc_top_control);
+ writel(0, &host->top_base->emmc_top_cmd);
+ } else {
+ writel(0, tune_reg);
+ }
writel(0, &host->base->msdc_iocon);
if (host->r_smpl)
@@ -1507,9 +1512,14 @@ static void msdc_init_hw(struct msdc_hos
writel(0x403c0046, &host->base->patch_bit0);
writel(0xffff4089, &host->base->patch_bit1);
- if (host->dev_comp->stop_clk_fix)
+ if (host->dev_comp->stop_clk_fix) {
clrsetbits_le32(&host->base->patch_bit1, MSDC_PB1_STOP_DLY_M,
3 << MSDC_PB1_STOP_DLY_S);
+ clrbits_le32(&host->base->sdc_fifo_cfg,
+ SDC_FIFO_CFG_WRVALIDSEL);
+ clrbits_le32(&host->base->sdc_fifo_cfg,
+ SDC_FIFO_CFG_RDVALIDSEL);
+ }
if (host->dev_comp->busy_check)
clrbits_le32(&host->base->patch_bit1, (1 << 7));
@@ -1544,15 +1554,28 @@ static void msdc_init_hw(struct msdc_hos
}
if (host->dev_comp->data_tune) {
- setbits_le32(tune_reg,
- MSDC_PAD_TUNE_RD_SEL | MSDC_PAD_TUNE_CMD_SEL);
- clrsetbits_le32(&host->base->patch_bit0,
- MSDC_INT_DAT_LATCH_CK_SEL_M,
- host->latch_ck <<
- MSDC_INT_DAT_LATCH_CK_SEL_S);
+ if (host->top_base) {
+ setbits_le32(&host->top_base->emmc_top_control,
+ PAD_DAT_RD_RXDLY_SEL);
+ clrbits_le32(&host->top_base->emmc_top_control,
+ DATA_K_VALUE_SEL);
+ setbits_le32(&host->top_base->emmc_top_cmd,
+ PAD_CMD_RD_RXDLY_SEL);
+ } else {
+ setbits_le32(tune_reg,
+ MSDC_PAD_TUNE_RD_SEL | MSDC_PAD_TUNE_CMD_SEL);
+ clrsetbits_le32(&host->base->patch_bit0,
+ MSDC_INT_DAT_LATCH_CK_SEL_M,
+ host->latch_ck <<
+ MSDC_INT_DAT_LATCH_CK_SEL_S);
+ }
} else {
/* choose clock tune */
- setbits_le32(tune_reg, MSDC_PAD_TUNE_RXDLYSEL);
+ if (host->top_base)
+ setbits_le32(&host->top_base->emmc_top_control,
+ PAD_RXDLY_SEL);
+ else
+ setbits_le32(tune_reg, MSDC_PAD_TUNE_RXDLYSEL);
}
if (host->dev_comp->builtin_pad_ctrl) {
@@ -1604,12 +1627,6 @@ static void msdc_init_hw(struct msdc_hos
clrsetbits_le32(&host->base->sdc_cfg, SDC_CFG_DTOC_M,
3 << SDC_CFG_DTOC_S);
- if (host->dev_comp->stop_clk_fix) {
- clrbits_le32(&host->base->sdc_fifo_cfg,
- SDC_FIFO_CFG_WRVALIDSEL);
- clrbits_le32(&host->base->sdc_fifo_cfg,
- SDC_FIFO_CFG_RDVALIDSEL);
- }
host->def_tune_para.iocon = readl(&host->base->msdc_iocon);
host->def_tune_para.pad_tune = readl(&host->base->pad_tune);
@@ -1792,6 +1809,25 @@ static const struct msdc_compatible mt76
.enhance_rx = false
};
+static const struct msdc_compatible mt7986_compat = {
+ .clk_div_bits = 12,
+ .pad_tune0 = true,
+ .async_fifo = true,
+ .data_tune = true,
+ .busy_check = true,
+ .stop_clk_fix = true,
+ .enhance_rx = true,
+};
+
+static const struct msdc_compatible mt7981_compat = {
+ .clk_div_bits = 12,
+ .pad_tune0 = true,
+ .async_fifo = true,
+ .data_tune = true,
+ .busy_check = true,
+ .stop_clk_fix = true,
+};
+
static const struct msdc_compatible mt8512_compat = {
.clk_div_bits = 12,
.pad_tune0 = true,
@@ -1824,6 +1860,8 @@ static const struct udevice_id msdc_ids[
{ .compatible = "mediatek,mt7621-mmc", .data = (ulong)&mt7621_compat },
{ .compatible = "mediatek,mt7622-mmc", .data = (ulong)&mt7622_compat },
{ .compatible = "mediatek,mt7623-mmc", .data = (ulong)&mt7623_compat },
+ { .compatible = "mediatek,mt7986-mmc", .data = (ulong)&mt7986_compat },
+ { .compatible = "mediatek,mt7981-mmc", .data = (ulong)&mt7981_compat },
{ .compatible = "mediatek,mt8512-mmc", .data = (ulong)&mt8512_compat },
{ .compatible = "mediatek,mt8516-mmc", .data = (ulong)&mt8516_compat },
{ .compatible = "mediatek,mt8183-mmc", .data = (ulong)&mt8183_compat },
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