[PATCH v2] mmc: sdhci-cadence: Add support for Cadence sdmmc v6
Kuan Lim Lee
kuanlim.lee at starfivetech.com
Tue Nov 28 07:38:30 CET 2023
Cadence SDMMC v6 controller has a lot of changes on initialize
compared to v4 controller. PHY is needed by v6 controller.
Signed-off-by: Kuan Lim Lee <kuanlim.lee at starfivetech.com>
Co-developed-by: Alex Soo <yuklin.soo at starfivetech.com>
Signed-off-by: Wei Liang Lim <weiliang.lim at starfivetech.com>
---
Changes in v2
- Rename file sdhci-cadence6-phy.c to sdhci-cadence6.c
- Remove CONFIG_MMC_SDHCI_CADENCE_V6
- Rewrite code of v6 configuration part
- Add sdhci_cdns6_phy_init() function
---
drivers/mmc/Makefile | 1 +
drivers/mmc/sdhci-cadence.c | 63 ++------
drivers/mmc/sdhci-cadence.h | 69 ++++++++
drivers/mmc/sdhci-cadence6.c | 294 +++++++++++++++++++++++++++++++++++
4 files changed, 376 insertions(+), 51 deletions(-)
create mode 100644 drivers/mmc/sdhci-cadence.h
create mode 100644 drivers/mmc/sdhci-cadence6.c
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 2c65c4765a..136f06600a 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -61,6 +61,7 @@ obj-$(CONFIG_MMC_SDHCI_ATMEL) += atmel_sdhci.o
obj-$(CONFIG_MMC_SDHCI_BCM2835) += bcm2835_sdhci.o
obj-$(CONFIG_MMC_SDHCI_BCMSTB) += bcmstb_sdhci.o
obj-$(CONFIG_MMC_SDHCI_CADENCE) += sdhci-cadence.o
+obj-$(CONFIG_MMC_SDHCI_CADENCE) += sdhci-cadence6.o
obj-$(CONFIG_MMC_SDHCI_AM654) += am654_sdhci.o
obj-$(CONFIG_MMC_SDHCI_IPROC) += iproc_sdhci.o
obj-$(CONFIG_MMC_SDHCI_KONA) += kona_sdhci.o
diff --git a/drivers/mmc/sdhci-cadence.c b/drivers/mmc/sdhci-cadence.c
index 327a05ad11..a5533af045 100644
--- a/drivers/mmc/sdhci-cadence.c
+++ b/drivers/mmc/sdhci-cadence.c
@@ -17,56 +17,7 @@
#include <linux/libfdt.h>
#include <mmc.h>
#include <sdhci.h>
-
-/* HRS - Host Register Set (specific to Cadence) */
-#define SDHCI_CDNS_HRS04 0x10 /* PHY access port */
-#define SDHCI_CDNS_HRS04_ACK BIT(26)
-#define SDHCI_CDNS_HRS04_RD BIT(25)
-#define SDHCI_CDNS_HRS04_WR BIT(24)
-#define SDHCI_CDNS_HRS04_RDATA GENMASK(23, 16)
-#define SDHCI_CDNS_HRS04_WDATA GENMASK(15, 8)
-#define SDHCI_CDNS_HRS04_ADDR GENMASK(5, 0)
-
-#define SDHCI_CDNS_HRS06 0x18 /* eMMC control */
-#define SDHCI_CDNS_HRS06_TUNE_UP BIT(15)
-#define SDHCI_CDNS_HRS06_TUNE GENMASK(13, 8)
-#define SDHCI_CDNS_HRS06_MODE GENMASK(2, 0)
-#define SDHCI_CDNS_HRS06_MODE_SD 0x0
-#define SDHCI_CDNS_HRS06_MODE_MMC_SDR 0x2
-#define SDHCI_CDNS_HRS06_MODE_MMC_DDR 0x3
-#define SDHCI_CDNS_HRS06_MODE_MMC_HS200 0x4
-#define SDHCI_CDNS_HRS06_MODE_MMC_HS400 0x5
-#define SDHCI_CDNS_HRS06_MODE_MMC_HS400ES 0x6
-
-/* SRS - Slot Register Set (SDHCI-compatible) */
-#define SDHCI_CDNS_SRS_BASE 0x200
-
-/* PHY */
-#define SDHCI_CDNS_PHY_DLY_SD_HS 0x00
-#define SDHCI_CDNS_PHY_DLY_SD_DEFAULT 0x01
-#define SDHCI_CDNS_PHY_DLY_UHS_SDR12 0x02
-#define SDHCI_CDNS_PHY_DLY_UHS_SDR25 0x03
-#define SDHCI_CDNS_PHY_DLY_UHS_SDR50 0x04
-#define SDHCI_CDNS_PHY_DLY_UHS_DDR50 0x05
-#define SDHCI_CDNS_PHY_DLY_EMMC_LEGACY 0x06
-#define SDHCI_CDNS_PHY_DLY_EMMC_SDR 0x07
-#define SDHCI_CDNS_PHY_DLY_EMMC_DDR 0x08
-#define SDHCI_CDNS_PHY_DLY_SDCLK 0x0b
-#define SDHCI_CDNS_PHY_DLY_HSMMC 0x0c
-#define SDHCI_CDNS_PHY_DLY_STROBE 0x0d
-
-/*
- * The tuned val register is 6 bit-wide, but not the whole of the range is
- * available. The range 0-42 seems to be available (then 43 wraps around to 0)
- * but I am not quite sure if it is official. Use only 0 to 39 for safety.
- */
-#define SDHCI_CDNS_MAX_TUNING_LOOP 40
-
-struct sdhci_cdns_plat {
- struct mmc_config cfg;
- struct mmc mmc;
- void __iomem *hrs_addr;
-};
+#include "sdhci-cadence.h"
struct sdhci_cdns_phy_cfg {
const char *property;
@@ -163,6 +114,9 @@ static void sdhci_cdns_set_control_reg(struct sdhci_host *host)
tmp &= ~SDHCI_CDNS_HRS06_MODE;
tmp |= FIELD_PREP(SDHCI_CDNS_HRS06_MODE, mode);
writel(tmp, plat->hrs_addr + SDHCI_CDNS_HRS06);
+
+ if (device_is_compatible(mmc->dev, "cdns,sd6hc"))
+ sdhci_cdns6_phy_adj(mmc->dev, plat, mode);
}
static const struct sdhci_ops sdhci_cdns_ops = {
@@ -176,6 +130,9 @@ static int sdhci_cdns_set_tune_val(struct sdhci_cdns_plat *plat,
u32 tmp;
int i, ret;
+ if (device_is_compatible(plat->mmc.dev, "cdns,sd6hc"))
+ return sdhci_cdns6_set_tune_val(plat, val);
+
if (WARN_ON(!FIELD_FIT(SDHCI_CDNS_HRS06_TUNE, val)))
return -EINVAL;
@@ -282,7 +239,10 @@ static int sdhci_cdns_probe(struct udevice *dev)
if (ret)
return ret;
- ret = sdhci_cdns_phy_init(plat, gd->fdt_blob, dev_of_offset(dev));
+ if (device_is_compatible(dev, "cdns,sd6hc"))
+ ret = sdhci_cdns6_phy_init(dev, plat);
+ else
+ ret = sdhci_cdns_phy_init(plat, gd->fdt_blob, dev_of_offset(dev));
if (ret)
return ret;
@@ -301,6 +261,7 @@ static int sdhci_cdns_probe(struct udevice *dev)
static const struct udevice_id sdhci_cdns_match[] = {
{ .compatible = "socionext,uniphier-sd4hc" },
{ .compatible = "cdns,sd4hc" },
+ { .compatible = "cdns,sd6hc" },
{ /* sentinel */ }
};
diff --git a/drivers/mmc/sdhci-cadence.h b/drivers/mmc/sdhci-cadence.h
new file mode 100644
index 0000000000..c20efd899a
--- /dev/null
+++ b/drivers/mmc/sdhci-cadence.h
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro at socionext.com>
+ */
+
+#ifndef SDHCI_CADENCE_H_
+#define SDHCI_CADENCE_H_
+
+/* HRS - Host Register Set (specific to Cadence) */
+/* PHY access port */
+#define SDHCI_CDNS_HRS04 0x10
+/* Cadence V4 HRS04 Description*/
+#define SDHCI_CDNS_HRS04_ACK BIT(26)
+#define SDHCI_CDNS_HRS04_RD BIT(25)
+#define SDHCI_CDNS_HRS04_WR BIT(24)
+#define SDHCI_CDNS_HRS04_RDATA GENMASK(23, 16)
+#define SDHCI_CDNS_HRS04_WDATA GENMASK(15, 8)
+#define SDHCI_CDNS_HRS04_ADDR GENMASK(5, 0)
+
+#define SDHCI_CDNS_HRS05 0x14
+
+/* eMMC control */
+#define SDHCI_CDNS_HRS06 0x18
+#define SDHCI_CDNS_HRS06_TUNE_UP BIT(15)
+#define SDHCI_CDNS_HRS06_TUNE GENMASK(13, 8)
+#define SDHCI_CDNS_HRS06_MODE GENMASK(2, 0)
+#define SDHCI_CDNS_HRS06_MODE_SD 0x0
+#define SDHCI_CDNS_HRS06_MODE_MMC_SDR 0x2
+#define SDHCI_CDNS_HRS06_MODE_MMC_DDR 0x3
+#define SDHCI_CDNS_HRS06_MODE_MMC_HS200 0x4
+#define SDHCI_CDNS_HRS06_MODE_MMC_HS400 0x5
+#define SDHCI_CDNS_HRS06_MODE_MMC_HS400ES 0x6
+
+/* SRS - Slot Register Set (SDHCI-compatible) */
+#define SDHCI_CDNS_SRS_BASE 0x200
+
+/* Cadence V4 PHY Setting*/
+#define SDHCI_CDNS_PHY_DLY_SD_HS 0x00
+#define SDHCI_CDNS_PHY_DLY_SD_DEFAULT 0x01
+#define SDHCI_CDNS_PHY_DLY_UHS_SDR12 0x02
+#define SDHCI_CDNS_PHY_DLY_UHS_SDR25 0x03
+#define SDHCI_CDNS_PHY_DLY_UHS_SDR50 0x04
+#define SDHCI_CDNS_PHY_DLY_UHS_DDR50 0x05
+#define SDHCI_CDNS_PHY_DLY_EMMC_LEGACY 0x06
+#define SDHCI_CDNS_PHY_DLY_EMMC_SDR 0x07
+#define SDHCI_CDNS_PHY_DLY_EMMC_DDR 0x08
+#define SDHCI_CDNS_PHY_DLY_SDCLK 0x0b
+#define SDHCI_CDNS_PHY_DLY_HSMMC 0x0c
+#define SDHCI_CDNS_PHY_DLY_STROBE 0x0d
+
+/*
+ * The tuned val register is 6 bit-wide, but not the whole of the range is
+ * available. The range 0-42 seems to be available (then 43 wraps around to 0)
+ * but I am not quite sure if it is official. Use only 0 to 39 for safety.
+ */
+#define SDHCI_CDNS_MAX_TUNING_LOOP 40
+
+struct sdhci_cdns_plat {
+ struct mmc_config cfg;
+ struct mmc mmc;
+ void __iomem *hrs_addr;
+};
+
+int sdhci_cdns6_phy_adj(struct udevice *dev, struct sdhci_cdns_plat *plat, u32 mode);
+int sdhci_cdns6_phy_init(struct udevice *dev, struct sdhci_cdns_plat *plat);
+int sdhci_cdns6_set_tune_val(struct sdhci_cdns_plat *plat, unsigned int val);
+
+#endif
diff --git a/drivers/mmc/sdhci-cadence6.c b/drivers/mmc/sdhci-cadence6.c
new file mode 100644
index 0000000000..ea0857e655
--- /dev/null
+++ b/drivers/mmc/sdhci-cadence6.c
@@ -0,0 +1,294 @@
+// SPDX-License-Identifier: GPL-2.0-or-platform_driver
+/*
+ * Copyright (C) 2023 Starfive.
+ * Author: Kuan Lim Lee <kuanlim.lee at starfivetech.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/global_data.h>
+#include <dm/device_compat.h>
+#include <linux/bitfield.h>
+#include <linux/bitops.h>
+#include <linux/bug.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/sizes.h>
+#include <linux/libfdt.h>
+#include <mmc.h>
+#include <sdhci.h>
+#include "sdhci-cadence.h"
+
+/* IO Delay Information */
+#define SDHCI_CDNS_HRS07 0X1C
+#define SDHCI_CDNS_HRS07_RW_COMPENSATE GENMASK(20, 16)
+#define SDHCI_CDNS_HRS07_IDELAY_VAL GENMASK(4, 0)
+
+/* PHY Control and Status */
+#define SDHCI_CDNS_HRS09 0x24
+#define SDHCI_CDNS_HRS09_RDDATA_EN BIT(16)
+#define SDHCI_CDNS_HRS09_RDCMD_EN BIT(15)
+#define SDHCI_CDNS_HRS09_EXTENDED_WR_MODE BIT(3)
+#define SDHCI_CDNS_HRS09_EXTENDED_RD_MODE BIT(2)
+#define SDHCI_CDNS_HRS09_PHY_INIT_COMPLETE BIT(1)
+#define SDHCI_CDNS_HRS09_PHY_SW_RESET BIT(0)
+
+/* SDCLK adjustment */
+#define SDHCI_CDNS_HRS10 0x28
+#define SDHCI_CDNS_HRS10_HCSDCLKADJ GENMASK(19, 16)
+
+/* CMD/DAT output delay */
+#define SDHCI_CDNS_HRS16 0x40
+
+/* PHY Special Function Registers */
+/* register to control the DQ related timing */
+#define PHY_DQ_TIMING_REG_ADDR 0x2000
+
+/* register to control the DQS related timing */
+#define PHY_DQS_TIMING_REG_ADDR 0x2004
+
+/* register to control the gate and loopback control related timing */
+#define PHY_GATE_LPBK_CTRL_REG_ADDR 0x2008
+
+/* register to control the Master DLL logic */
+#define PHY_DLL_MASTER_CTRL_REG_ADDR 0x200C
+
+/* register to control the Slave DLL logic */
+#define PHY_DLL_SLAVE_CTRL_REG_ADDR 0x2010
+#define PHY_DLL_SLAVE_CTRL_REG_READ_DQS_CMD_DELAY GENMASK(31, 24)
+#define PHY_DLL_SLAVE_CTRL_REG_READ_DQS_DELAY GENMASK(7, 0)
+
+#define SDHCI_CDNS6_PHY_CFG_NUM 4
+#define SDHCI_CDNS6_CTRL_CFG_NUM 4
+
+struct sdhci_cdns6_phy_cfg {
+ const char *property;
+ u32 val;
+};
+
+struct sdhci_cdns6_ctrl_cfg {
+ const char *property;
+ u32 val;
+};
+
+static struct sdhci_cdns6_phy_cfg sd_ds_phy_cfgs[] = {
+ { "cdns,phy-dqs-timing-delay-sd-ds", 0x00380004, },
+ { "cdns,phy-gate-lpbk_ctrl-delay-sd-ds", 0x01A00040, },
+ { "cdns,phy-dll-slave-ctrl-sd-ds", 0x00000000, },
+ { "cdns,phy-dq-timing-delay-sd-ds", 0x00000001, },
+};
+
+static struct sdhci_cdns6_phy_cfg emmc_sdr_phy_cfgs[] = {
+ { "cdns,phy-dqs-timing-delay-semmc-sdr", 0x00380004, },
+ { "cdns,phy-gate-lpbk_ctrl-delay-emmc-sdr", 0x01A00040, },
+ { "cdns,phy-dll-slave-ctrl-emmc-sdr", 0x00000000, },
+ { "cdns,phy-dq-timing-delay-emmc-sdr", 0x00000001, },
+};
+
+static struct sdhci_cdns6_phy_cfg emmc_ddr_phy_cfgs[] = {
+ { "cdns,phy-dqs-timing-delay-emmc-ddr", 0x00380004, },
+ { "cdns,phy-gate-lpbk_ctrl-delay-emmc-ddr", 0x01A00040, },
+ { "cdns,phy-dll-slave-ctrl-emmc-ddr", 0x00000000, },
+ { "cdns,phy-dq-timing-delay-emmc-ddr", 0x10000001, },
+};
+
+static struct sdhci_cdns6_phy_cfg emmc_hs200_phy_cfgs[] = {
+ { "cdns,phy-dqs-timing-delay-emmc-hs200", 0x00380004, },
+ { "cdns,phy-gate-lpbk_ctrl-delay-emmc-hs200", 0x01A00040, },
+ { "cdns,phy-dll-slave-ctrl-emmc-hs200", 0x00DADA00, },
+ { "cdns,phy-dq-timing-delay-emmc-hs200", 0x00000001, },
+};
+
+static struct sdhci_cdns6_phy_cfg emmc_hs400_phy_cfgs[] = {
+ { "cdns,phy-dqs-timing-delay-emmc-hs400", 0x00280004, },
+ { "cdns,phy-gate-lpbk_ctrl-delay-emmc-hs400", 0x01A00040, },
+ { "cdns,phy-dll-slave-ctrl-emmc-hs400", 0x00DAD800, },
+ { "cdns,phy-dq-timing-delay-emmc-hs400", 0x00000001, },
+};
+
+static struct sdhci_cdns6_ctrl_cfg sd_ds_ctrl_cfgs[] = {
+ { "cdns,ctrl-hrs09-timing-delay-sd-ds", 0x0001800C, },
+ { "cdns,ctrl-hrs10-lpbk_ctrl-delay-sd-ds", 0x00020000, },
+ { "cdns,ctrl-hrs16-slave-ctrl-sd-ds", 0x00000000, },
+ { "cdns,ctrl-hrs07-timing-delay-sd-ds", 0x00080000, },
+};
+
+static struct sdhci_cdns6_ctrl_cfg emmc_sdr_ctrl_cfgs[] = {
+ { "cdns,ctrl-hrs09-timing-delay-emmc-sdr", 0x0001800C, },
+ { "cdns,ctrl-hrs10-lpbk_ctrl-delay-emmc-sdr", 0x00030000, },
+ { "cdns,ctrl-hrs16-slave-ctrl-emmc-sdr", 0x00000000, },
+ { "cdns,ctrl-hrs07-timing-delay-emmc-sdr", 0x00080000, },
+};
+
+static struct sdhci_cdns6_ctrl_cfg emmc_ddr_ctrl_cfgs[] = {
+ { "cdns,ctrl-hrs09-timing-delay-emmc-ddr", 0x0001800C, },
+ { "cdns,ctrl-hrs10-lpbk_ctrl-delay-emmc-ddr", 0x00020000, },
+ { "cdns,ctrl-hrs16-slave-ctrl-emmc-ddr", 0x11000001, },
+ { "cdns,ctrl-hrs07-timing-delay-emmc-ddr", 0x00090001, },
+};
+
+static struct sdhci_cdns6_ctrl_cfg emmc_hs200_ctrl_cfgs[] = {
+ { "cdns,ctrl-hrs09-timing-delay-emmc-hs200", 0x00018000, },
+ { "cdns,ctrl-hrs10-lpbk_ctrl-delay-emmc-hs200", 0x00080000, },
+ { "cdns,ctrl-hrs16-slave-ctrl-emmc-hs200", 0x00000000, },
+ { "cdns,ctrl-hrs07-timing-delay-emmc-hs200", 0x00090000, },
+};
+
+static struct sdhci_cdns6_ctrl_cfg emmc_hs400_ctrl_cfgs[] = {
+ { "cdns,ctrl-hrs09-timing-delay-emmc-hs400", 0x00018000, },
+ { "cdns,ctrl-hrs10-lpbk_ctrl-delay-emmc-hs400", 0x00080000, },
+ { "cdns,ctrl-hrs16-slave-ctrl-emmc-hs400", 0x11000000, },
+ { "cdns,ctrl-hrs07-timing-delay-emmc-hs400", 0x00080000, },
+};
+
+static u32 sdhci_cdns6_read_phy_reg(struct sdhci_cdns_plat *plat, u32 addr)
+{
+ writel(addr, plat->hrs_addr + SDHCI_CDNS_HRS04);
+ return readl(plat->hrs_addr + SDHCI_CDNS_HRS05);
+}
+
+static void sdhci_cdns6_write_phy_reg(struct sdhci_cdns_plat *plat, u32 addr, u32 val)
+{
+ writel(addr, plat->hrs_addr + SDHCI_CDNS_HRS04);
+ writel(val, plat->hrs_addr + SDHCI_CDNS_HRS05);
+}
+
+static int sdhci_cdns6_reset_phy_dll(struct sdhci_cdns_plat *plat, bool reset)
+{
+ void __iomem *reg = plat->hrs_addr + SDHCI_CDNS_HRS09;
+ u32 tmp;
+ int ret;
+
+ tmp = readl(reg);
+ tmp &= ~SDHCI_CDNS_HRS09_PHY_SW_RESET;
+
+ /* Switch On DLL Reset */
+ if (reset)
+ tmp |= FIELD_PREP(SDHCI_CDNS_HRS09_PHY_SW_RESET, 0);
+ else
+ tmp |= FIELD_PREP(SDHCI_CDNS_HRS09_PHY_SW_RESET, 1);
+
+ writel(tmp, reg);
+
+ /* After reset, wait until HRS09.PHY_INIT_COMPLETE is set to 1 within 3000us*/
+ if (!reset) {
+ ret = readl_poll_timeout(reg, tmp, (tmp & SDHCI_CDNS_HRS09_PHY_INIT_COMPLETE),
+ 3000);
+ }
+
+ return ret;
+}
+
+int sdhci_cdns6_phy_adj(struct udevice *dev, struct sdhci_cdns_plat *plat, u32 mode)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+ struct sdhci_cdns6_phy_cfg *sdhci_cdns6_phy_cfgs;
+ struct sdhci_cdns6_ctrl_cfg *sdhci_cdns6_ctrl_cfgs;
+ const fdt32_t *prop;
+ u32 tmp;
+ int i, ret;
+
+ switch (mode) {
+ case SDHCI_CDNS_HRS06_MODE_SD:
+ sdhci_cdns6_phy_cfgs = sd_ds_phy_cfgs;
+ sdhci_cdns6_ctrl_cfgs = sd_ds_ctrl_cfgs;
+ break;
+
+ case SDHCI_CDNS_HRS06_MODE_MMC_SDR:
+ sdhci_cdns6_phy_cfgs = emmc_sdr_phy_cfgs;
+ sdhci_cdns6_ctrl_cfgs = emmc_sdr_ctrl_cfgs;
+ break;
+
+ case SDHCI_CDNS_HRS06_MODE_MMC_DDR:
+ sdhci_cdns6_phy_cfgs = emmc_ddr_phy_cfgs;
+ sdhci_cdns6_ctrl_cfgs = emmc_ddr_ctrl_cfgs;
+ break;
+
+ case SDHCI_CDNS_HRS06_MODE_MMC_HS200:
+ sdhci_cdns6_phy_cfgs = emmc_hs200_phy_cfgs;
+ sdhci_cdns6_ctrl_cfgs = emmc_hs200_ctrl_cfgs;
+ break;
+
+ case SDHCI_CDNS_HRS06_MODE_MMC_HS400:
+ sdhci_cdns6_phy_cfgs = emmc_hs400_phy_cfgs;
+ sdhci_cdns6_ctrl_cfgs = emmc_hs400_ctrl_cfgs;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ for (i = 0; i < SDHCI_CDNS6_PHY_CFG_NUM; i++) {
+ prop = fdt_getprop(gd->fdt_blob, dev_of_offset(dev),
+ sdhci_cdns6_phy_cfgs[i].property, NULL);
+ if (prop)
+ sdhci_cdns6_phy_cfgs[i].val = *prop;
+ }
+
+ for (i = 0; i < SDHCI_CDNS6_CTRL_CFG_NUM; i++) {
+ prop = fdt_getprop(gd->fdt_blob, dev_of_offset(dev),
+ sdhci_cdns6_ctrl_cfgs[i].property, NULL);
+ if (prop)
+ sdhci_cdns6_ctrl_cfgs[i].val = *prop;
+ }
+
+ /* Switch On the DLL Reset */
+ sdhci_cdns6_reset_phy_dll(plat, true);
+
+ sdhci_cdns6_write_phy_reg(plat, PHY_DQS_TIMING_REG_ADDR, sdhci_cdns6_phy_cfgs[0].val);
+ sdhci_cdns6_write_phy_reg(plat, PHY_GATE_LPBK_CTRL_REG_ADDR, sdhci_cdns6_phy_cfgs[1].val);
+ sdhci_cdns6_write_phy_reg(plat, PHY_DLL_SLAVE_CTRL_REG_ADDR, sdhci_cdns6_phy_cfgs[2].val);
+
+ /* Switch Off the DLL Reset */
+ ret = sdhci_cdns6_reset_phy_dll(plat, false);
+ if (ret) {
+ printf("sdhci_cdns6_reset_phy is not completed\n");
+ return ret;
+ }
+
+ /* Set PHY DQ TIMING control register */
+ sdhci_cdns6_write_phy_reg(plat, PHY_DQ_TIMING_REG_ADDR, sdhci_cdns6_phy_cfgs[3].val);
+
+ /* Set HRS09 register */
+ tmp = readl(plat->hrs_addr + SDHCI_CDNS_HRS09);
+ tmp &= ~(SDHCI_CDNS_HRS09_EXTENDED_WR_MODE |
+ SDHCI_CDNS_HRS09_EXTENDED_RD_MODE |
+ SDHCI_CDNS_HRS09_RDDATA_EN |
+ SDHCI_CDNS_HRS09_RDCMD_EN);
+ tmp |= sdhci_cdns6_ctrl_cfgs[0].val;
+ writel(tmp, plat->hrs_addr + SDHCI_CDNS_HRS09);
+
+ /* Set HRS10 register */
+ tmp = readl(plat->hrs_addr + SDHCI_CDNS_HRS10);
+ tmp &= ~SDHCI_CDNS_HRS10_HCSDCLKADJ;
+ tmp |= sdhci_cdns6_ctrl_cfgs[1].val;
+ writel(tmp, plat->hrs_addr + SDHCI_CDNS_HRS10);
+
+ /* Set HRS16 register */
+ writel(sdhci_cdns6_ctrl_cfgs[2].val, plat->hrs_addr + SDHCI_CDNS_HRS16);
+
+ /* Set HRS07 register */
+ writel(sdhci_cdns6_ctrl_cfgs[3].val, plat->hrs_addr + SDHCI_CDNS_HRS07);
+
+ return 0;
+}
+
+int sdhci_cdns6_phy_init(struct udevice *dev, struct sdhci_cdns_plat *plat)
+{
+ return sdhci_cdns6_phy_adj(dev, plat, SDHCI_CDNS_HRS06_MODE_SD);
+}
+
+int sdhci_cdns6_set_tune_val(struct sdhci_cdns_plat *plat, unsigned int val)
+{
+ u32 tmp, tuneval;
+
+ tuneval = (val * 256) / SDHCI_CDNS_MAX_TUNING_LOOP;
+
+ tmp = sdhci_cdns6_read_phy_reg(plat, PHY_DLL_SLAVE_CTRL_REG_ADDR);
+ tmp &= ~(PHY_DLL_SLAVE_CTRL_REG_READ_DQS_CMD_DELAY |
+ PHY_DLL_SLAVE_CTRL_REG_READ_DQS_DELAY);
+ tmp |= FIELD_PREP(PHY_DLL_SLAVE_CTRL_REG_READ_DQS_CMD_DELAY, tuneval) |
+ FIELD_PREP(PHY_DLL_SLAVE_CTRL_REG_READ_DQS_DELAY, tuneval);
+ sdhci_cdns6_write_phy_reg(plat, PHY_DLL_SLAVE_CTRL_REG_ADDR, tmp);
+
+ return 0;
+}
--
2.34.1
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