This patch adds mmc support for MediaTek MT7620/MT7628 SoCs.
Signed-off-by: Weijie Gao weijie.gao@mediatek.com --- v2: Removed unnecessary braces in Kconfig --- drivers/mmc/Kconfig | 2 +- drivers/mmc/mtk-sd.c | 23 ++++++++++++++++++++--- 2 files changed, 21 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 7361bcaf8e..a05c6fc736 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -681,7 +681,7 @@ config FTSDC010_SDIO
config MMC_MTK bool "MediaTek SD/MMC Card Interface support" - depends on ARCH_MEDIATEK + depends on ARCH_MEDIATEK || ARCH_MTMIPS depends on BLK && DM_MMC depends on OF_CONTROL help diff --git a/drivers/mmc/mtk-sd.c b/drivers/mmc/mtk-sd.c index f555357af2..7069fe8948 100644 --- a/drivers/mmc/mtk-sd.c +++ b/drivers/mmc/mtk-sd.c @@ -217,6 +217,7 @@ struct mtk_sd_regs {
struct msdc_compatible { u8 clk_div_bits; + u8 sclk_cycle_shift; bool pad_tune0; bool async_fifo; bool data_tune; @@ -664,7 +665,7 @@ static int msdc_ops_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
static void msdc_set_timeout(struct msdc_host *host, u32 ns, u32 clks) { - u32 timeout, clk_ns; + u32 timeout, clk_ns, shift; u32 mode = 0;
host->timeout_ns = ns; @@ -673,10 +674,11 @@ static void msdc_set_timeout(struct msdc_host *host, u32 ns, u32 clks) if (host->sclk == 0) { timeout = 0; } else { + shift = host->dev_comp->sclk_cycle_shift; clk_ns = 1000000000UL / host->sclk; timeout = (ns + clk_ns - 1) / clk_ns + clks; /* unit is 1048576 sclk cycles */ - timeout = (timeout + (0x1 << 20) - 1) >> 20; + timeout = (timeout + (0x1 << shift) - 1) >> shift; if (host->dev_comp->clk_div_bits == 8) mode = (readl(&host->base->msdc_cfg) & MSDC_CFG_CKMOD_M) >> MSDC_CFG_CKMOD_S; @@ -1301,7 +1303,7 @@ static int msdc_drv_probe(struct udevice *dev)
host->mmc = &plat->mmc; host->timeout_ns = 100000000; - host->timeout_clks = 3 * 1048576; + host->timeout_clks = 3 * (1 << host->dev_comp->sclk_cycle_shift);
#ifdef CONFIG_PINCTRL pinctrl_select_state(dev, "default"); @@ -1374,8 +1376,20 @@ static const struct dm_mmc_ops msdc_ops = { #endif };
+static const struct msdc_compatible mt7620_compat = { + .clk_div_bits = 8, + .sclk_cycle_shift = 16, + .pad_tune0 = false, + .async_fifo = false, + .data_tune = false, + .busy_check = false, + .stop_clk_fix = false, + .enhance_rx = false +}; + static const struct msdc_compatible mt7623_compat = { .clk_div_bits = 12, + .sclk_cycle_shift = 20, .pad_tune0 = true, .async_fifo = true, .data_tune = true, @@ -1386,6 +1400,7 @@ static const struct msdc_compatible mt7623_compat = {
static const struct msdc_compatible mt8516_compat = { .clk_div_bits = 12, + .sclk_cycle_shift = 20, .pad_tune0 = true, .async_fifo = true, .data_tune = true, @@ -1395,6 +1410,7 @@ static const struct msdc_compatible mt8516_compat = {
static const struct msdc_compatible mt8183_compat = { .clk_div_bits = 12, + .sclk_cycle_shift = 20, .pad_tune0 = true, .async_fifo = true, .data_tune = true, @@ -1403,6 +1419,7 @@ static const struct msdc_compatible mt8183_compat = { };
static const struct udevice_id msdc_ids[] = { + { .compatible = "mediatek,mt7620-mmc", .data = (ulong)&mt7620_compat }, { .compatible = "mediatek,mt7623-mmc", .data = (ulong)&mt7623_compat }, { .compatible = "mediatek,mt8516-mmc", .data = (ulong)&mt8516_compat }, { .compatible = "mediatek,mt8183-mmc", .data = (ulong)&mt8183_compat },