+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2007-2011
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
* Aaron <leafy.myeh@allwinnertech.com>
*
* MMC driver for allwinner sunxi platform.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
priv->reg = (struct sunxi_mmc *)SUNXI_MMC2_BASE;
priv->mclkreg = &ccm->sd2_clk_cfg;
break;
+#ifdef SUNXI_MMC3_BASE
case 3:
priv->reg = (struct sunxi_mmc *)SUNXI_MMC3_BASE;
priv->mclkreg = &ccm->sd3_clk_cfg;
break;
+#endif
default:
printf("Wrong mmc number %d\n", sdc_no);
return -1;
static int mmc_set_mod_clk(struct sunxi_mmc_priv *priv, unsigned int hz)
{
unsigned int pll, pll_hz, div, n, oclk_dly, sclk_dly;
- bool new_mode = false;
+ bool new_mode = true;
+ bool calibrate = false;
u32 val = 0;
- if (IS_ENABLED(CONFIG_MMC_SUNXI_HAS_NEW_MODE) && (priv->mmc_no == 2))
- new_mode = true;
+ if (!IS_ENABLED(CONFIG_MMC_SUNXI_HAS_NEW_MODE))
+ new_mode = false;
- /*
- * The MMC clock has an extra /2 post-divider when operating in the new
- * mode.
- */
- if (new_mode)
- hz = hz * 2;
+ /* A83T support new mode only on eMMC */
+ if (IS_ENABLED(CONFIG_MACH_SUN8I_A83T) && priv->mmc_no != 2)
+ new_mode = false;
+
+#if defined(CONFIG_MACH_SUN50I) || defined(CONFIG_MACH_SUN50I_H6)
+ calibrate = true;
+#endif
if (hz <= 24000000) {
pll = CCM_MMC_CTRL_OSCM24;
#ifdef CONFIG_MACH_SUN9I
pll = CCM_MMC_CTRL_PLL_PERIPH0;
pll_hz = clock_get_pll4_periph0();
+#elif defined(CONFIG_MACH_SUN50I_H6)
+ pll = CCM_MMC_CTRL_PLL6X2;
+ pll_hz = clock_get_pll6() * 2;
#else
pll = CCM_MMC_CTRL_PLL6;
pll_hz = clock_get_pll6();
if (new_mode) {
#ifdef CONFIG_MMC_SUNXI_HAS_NEW_MODE
+#ifdef CONFIG_MMC_SUNXI_HAS_MODE_SWITCH
val = CCM_MMC_CTRL_MODE_SEL_NEW;
+#endif
setbits_le32(&priv->reg->ntsr, SUNXI_MMC_NTSR_MODE_SEL_NEW);
#endif
- } else {
+ } else if (!calibrate) {
+ /*
+ * Use hardcoded delay values if controller doesn't support
+ * calibration
+ */
val = CCM_MMC_CTRL_OCLK_DLY(oclk_dly) |
CCM_MMC_CTRL_SCLK_DLY(sclk_dly);
}
rval &= ~SUNXI_MMC_CLK_DIVIDER_MASK;
writel(rval, &priv->reg->clkcr);
+#if defined(CONFIG_MACH_SUN50I) || defined(CONFIG_MACH_SUN50I_H6)
+ /* A64 supports calibration of delays on MMC controller and we
+ * have to set delay of zero before starting calibration.
+ * Allwinner BSP driver sets a delay only in the case of
+ * using HS400 which is not supported by mainline U-Boot or
+ * Linux at the moment
+ */
+ writel(SUNXI_MMC_CAL_DL_SW_EN, &priv->reg->samp_dl);
+#endif
+
/* Re-enable Clock */
rval |= SUNXI_MMC_CLK_ENABLE;
writel(rval, &priv->reg->clkcr);
cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
cfg->host_caps = MMC_MODE_4BIT;
-#if defined(CONFIG_MACH_SUN50I) || defined(CONFIG_MACH_SUN8I)
+#if defined(CONFIG_MACH_SUN50I) || defined(CONFIG_MACH_SUN8I) || defined(CONFIG_MACH_SUN50I_H6)
if (sdc_no == 2)
cfg->host_caps = MMC_MODE_8BIT;
#endif
/* config ahb clock */
debug("init mmc %d clock and io\n", sdc_no);
+#if !defined(CONFIG_MACH_SUN50I_H6)
setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MMC(sdc_no));
#ifdef CONFIG_SUNXI_GEN_SUN6I
/* sun9i has a mmc-common module, also set the gate and reset there */
writel(SUNXI_MMC_COMMON_CLK_GATE | SUNXI_MMC_COMMON_RESET,
SUNXI_MMC_COMMON_BASE + 4 * sdc_no);
+#endif
+#else /* CONFIG_MACH_SUN50I_H6 */
+ setbits_le32(&ccm->sd_gate_reset, 1 << sdc_no);
+ /* unassert reset */
+ setbits_le32(&ccm->sd_gate_reset, 1 << (RESET_SHIFT + sdc_no));
#endif
ret = mmc_set_mod_clk(priv, 24000000);
if (ret)
}
static const struct udevice_id sunxi_mmc_ids[] = {
+ { .compatible = "allwinner,sun4i-a10-mmc" },
{ .compatible = "allwinner,sun5i-a13-mmc" },
+ { .compatible = "allwinner,sun7i-a20-mmc" },
{ }
};