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 --- v2 changes: none --- drivers/mmc/mtk-sd.c | 68 ++++++++++++++++++++++++++++++++++---------- 1 file changed, 53 insertions(+), 15 deletions(-)
diff --git a/drivers/mmc/mtk-sd.c b/drivers/mmc/mtk-sd.c index e61e8cf4b9..b206b0a085 100644 --- a/drivers/mmc/mtk-sd.c +++ b/drivers/mmc/mtk-sd.c @@ -1496,7 +1496,12 @@ static void msdc_init_hw(struct msdc_host *host) /* 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_host *host) 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_host *host) }
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_host *host) 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 mt7623_compat = { .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 },