diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/mmc/mmc.c | 87 | ||||
| -rw-r--r-- | drivers/mmc/msm_sdhci.c | 11 | ||||
| -rw-r--r-- | drivers/mmc/sdhci-cadence.c | 63 | ||||
| -rw-r--r-- | drivers/mmc/sdhci-cadence.h | 69 | ||||
| -rw-r--r-- | drivers/mmc/sdhci-cadence6.c | 293 | ||||
| -rw-r--r-- | drivers/mmc/sdhci.c | 52 | ||||
| -rw-r--r-- | drivers/mmc/snps_dw_mmc.c | 9 |
8 files changed, 478 insertions, 107 deletions
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 72c3fb66ce0..235c477c2e0 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -60,6 +60,7 @@ 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_CV1800B) += cv1800b_sdhci.o obj-$(CONFIG_MMC_SDHCI_AM654) += am654_sdhci.o obj-$(CONFIG_MMC_SDHCI_IPROC) += iproc_sdhci.o diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index cf8277cbed8..7e702c3ae85 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -30,6 +30,41 @@ #define DEFAULT_CMD6_TIMEOUT_MS 500 +/** + * names of emmc BOOT_PARTITION_ENABLE values + * + * Boot Area Partitions - name consistent with Linux + */ +const char *emmc_boot_part_names[] = { + "default", /* EMMC_BOOT_PART_DEFAULT */ + "boot0", /* EMMC_BOOT_PART_BOOT1 */ + "boot1", /* EMMC_BOOT_PART_BOOT2 */ + "", + "", + "", + "", + "user", /* EMMC_BOOT_PART_USER */ +}; + +/** + * names of emmc 'hardware partitions' consistent with: + * - value used in mmc_switch() + * - value used by PARTITION_CONFIG PARTITION_ACCESS field + * + * Boot Area Partitions - name consistent with Linux + * General Perpose Partitions - name consistent with 'mmc hwpartition' usage + */ +const char *emmc_hwpart_names[] = { + "user", /* EMMC_HWPART_DEFAULT */ + "boot0", /* EMMC_HWPART_BOOT1 */ + "boot1", /* EMMC_HWPART_BOOT2 */ + "rpmb", /* EMMC_HWPART_RPMB */ + "gp1", /* EMMC_HWPART_GP1 */ + "gp2", /* EMMC_HWPART_GP2 */ + "gp3", /* EMMC_HWPART_GP3 */ + "gp4", /* EMMC_HWPART_GP4 */ +}; + static int mmc_set_signal_voltage(struct mmc *mmc, uint signal_voltage); #if !CONFIG_IS_ENABLED(DM_MMC) @@ -294,7 +329,7 @@ int mmc_poll_for_busy(struct mmc *mmc, int timeout_ms) if (status & MMC_STATUS_MASK) { #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) - pr_err("Status Error: 0x%08x\n", status); + log_err("Status Error: %#08x\n", status); #endif return -ECOMM; } @@ -307,7 +342,7 @@ int mmc_poll_for_busy(struct mmc *mmc, int timeout_ms) if (timeout_ms <= 0) { #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) - pr_err("Timeout waiting card ready\n"); + log_err("Timeout waiting card ready\n"); #endif return -ETIMEDOUT; } @@ -449,7 +484,7 @@ static int mmc_read_blocks(struct mmc *mmc, void *dst, lbaint_t start, if (blkcnt > 1) { if (mmc_send_stop_transmission(mmc, false)) { #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) - pr_err("mmc fail to send stop cmd\n"); + log_err("mmc fail to send stop cmd\n"); #endif return 0; } @@ -500,8 +535,8 @@ ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt, if ((start + blkcnt) > block_dev->lba) { #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) - pr_err("MMC: block number 0x" LBAF " exceeds max(0x" LBAF ")\n", - start + blkcnt, block_dev->lba); + log_err("MMC: block number 0x" LBAF " exceeds max(0x" LBAF ")\n", + start + blkcnt, block_dev->lba); #endif return 0; } @@ -962,8 +997,8 @@ static int mmc_set_card_speed(struct mmc *mmc, enum bus_mode mode, * Extended CSD. Reconfigure the controller to run at HS mode. */ if (hsdowngrade) { - mmc_select_mode(mmc, MMC_HS); - mmc_set_clock(mmc, mmc_mode2freq(mmc, MMC_HS), false); + mmc_select_mode(mmc, MMC_HS_52); + mmc_set_clock(mmc, mmc_mode2freq(mmc, MMC_HS_52), false); } #endif @@ -996,7 +1031,7 @@ static int mmc_get_capabilities(struct mmc *mmc) return 0; if (!ext_csd) { - pr_err("No ext_csd found!\n"); /* this should enver happen */ + log_err("No ext_csd found!\n"); /* this should never happen */ return -ENOTSUPP; } @@ -1108,17 +1143,17 @@ int mmc_hwpart_config(struct mmc *mmc, return -EINVAL; if (IS_SD(mmc) || (mmc->version < MMC_VERSION_4_41)) { - pr_err("eMMC >= 4.4 required for enhanced user data area\n"); + log_err("eMMC >= 4.4 required for enhanced user data area\n"); return -EMEDIUMTYPE; } if (!(mmc->part_support & PART_SUPPORT)) { - pr_err("Card does not support partitioning\n"); + log_err("Card does not support partitioning\n"); return -EMEDIUMTYPE; } if (!mmc->hc_wp_grp_size) { - pr_err("Card does not define HC WP group size\n"); + log_err("Card does not define HC WP group size\n"); return -EMEDIUMTYPE; } @@ -1126,8 +1161,7 @@ int mmc_hwpart_config(struct mmc *mmc, if (conf->user.enh_size) { if (conf->user.enh_size % mmc->hc_wp_grp_size || conf->user.enh_start % mmc->hc_wp_grp_size) { - pr_err("User data enhanced area not HC WP group " - "size aligned\n"); + log_err("User data enhanced area not HC WP group size aligned\n"); return -EINVAL; } part_attrs |= EXT_CSD_ENH_USR; @@ -1145,8 +1179,8 @@ int mmc_hwpart_config(struct mmc *mmc, for (pidx = 0; pidx < 4; pidx++) { if (conf->gp_part[pidx].size % mmc->hc_wp_grp_size) { - pr_err("GP%i partition not HC WP group size " - "aligned\n", pidx+1); + log_err("GP%i partition not HC WP group-size aligned\n", + pidx + 1); return -EINVAL; } gp_size_mult[pidx] = conf->gp_part[pidx].size / mmc->hc_wp_grp_size; @@ -1157,7 +1191,7 @@ int mmc_hwpart_config(struct mmc *mmc, } if (part_attrs && ! (mmc->part_support & ENHNCD_SUPPORT)) { - pr_err("Card does not support enhanced attribute\n"); + log_err("Card does not support enhanced attribute\n"); return -EMEDIUMTYPE; } @@ -1170,8 +1204,8 @@ int mmc_hwpart_config(struct mmc *mmc, (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT+1] << 8) + ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT]; if (tot_enh_size_mult > max_enh_size_mult) { - pr_err("Total enhanced size exceeds maximum (%u > %u)\n", - tot_enh_size_mult, max_enh_size_mult); + log_err("Total enhanced size exceeds maximum (%#x > %#x)\n", + tot_enh_size_mult, max_enh_size_mult); return -EMEDIUMTYPE; } @@ -1204,7 +1238,7 @@ int mmc_hwpart_config(struct mmc *mmc, if (ext_csd[EXT_CSD_PARTITION_SETTING] & EXT_CSD_PARTITION_SETTING_COMPLETED) { - pr_err("Card already partitioned\n"); + log_err("Card already partitioned\n"); return -EPERM; } @@ -1875,7 +1909,7 @@ error: } } - pr_err("unable to select a mode\n"); + log_err("unable to select a mode\n"); return -ENOTSUPP; } @@ -2043,7 +2077,7 @@ static int mmc_select_hs400(struct mmc *mmc) } /* Set back to HS */ - mmc_set_card_speed(mmc, MMC_HS, true); + mmc_set_card_speed(mmc, MMC_HS_52, true); err = mmc_hs400_prepare_ddr(mmc); if (err) @@ -2253,7 +2287,7 @@ error: } } - pr_err("unable to select a mode : %d\n", err); + log_err("unable to select a mode: %d\n", err); return -ENOTSUPP; } @@ -2921,7 +2955,8 @@ retry: if (err) { #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) if (!quiet) - pr_err("Card did not respond to voltage select! : %d\n", err); + log_err("Card did not respond to voltage select! : %d\n", + err); #endif return -EOPNOTSUPP; } @@ -2954,7 +2989,7 @@ int mmc_start_init(struct mmc *mmc) | MMC_CAP(MMC_LEGACY) | MMC_MODE_1BIT); } else { - pr_err("bus_mode requested is not supported\n"); + log_err("bus_mode requested is not supported\n"); return -EINVAL; } } @@ -2974,7 +3009,7 @@ int mmc_start_init(struct mmc *mmc) if (no_card) { mmc->has_init = 0; #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) - pr_err("MMC: no card present\n"); + log_err("MMC: no card present\n"); #endif return -ENOMEDIUM; } @@ -3103,7 +3138,7 @@ static int mmc_probe(struct bd_info *bis) uclass_foreach_dev(dev, uc) { ret = device_probe(dev); if (ret) - pr_err("%s - probe failed: %d\n", dev->name, ret); + log_err("%s - probe failed: %d\n", dev->name, ret); } return 0; diff --git a/drivers/mmc/msm_sdhci.c b/drivers/mmc/msm_sdhci.c index f5e9930c799..4e5c932c071 100644 --- a/drivers/mmc/msm_sdhci.c +++ b/drivers/mmc/msm_sdhci.c @@ -32,6 +32,8 @@ #define SDCC_MCI_STATUS2_MCI_ACT 0x1 #define SDCC_MCI_HC_MODE 0x78 +#define CORE_VENDOR_SPEC_POR_VAL 0xa9c + struct msm_sdhc_plat { struct mmc_config cfg; struct mmc mmc; @@ -46,6 +48,7 @@ struct msm_sdhc { struct msm_sdhc_variant_info { bool mci_removed; + u32 core_vendor_spec; u32 core_vendor_spec_capabilities0; }; @@ -54,11 +57,14 @@ DECLARE_GLOBAL_DATA_PTR; static int msm_sdc_clk_init(struct udevice *dev) { struct msm_sdhc *prv = dev_get_priv(dev); + const struct msm_sdhc_variant_info *var_info; ofnode node = dev_ofnode(dev); ulong clk_rate; int ret, i = 0, n_clks; const char *clk_name; + var_info = (void *)dev_get_driver_data(dev); + ret = ofnode_read_u32(node, "clock-frequency", (uint *)(&clk_rate)); if (ret) clk_rate = 201500000; @@ -105,6 +111,9 @@ static int msm_sdc_clk_init(struct udevice *dev) return -EINVAL; } + writel_relaxed(CORE_VENDOR_SPEC_POR_VAL, + prv->host.ioaddr + var_info->core_vendor_spec); + return 0; } @@ -254,12 +263,14 @@ static int msm_sdc_bind(struct udevice *dev) static const struct msm_sdhc_variant_info msm_sdhc_mci_var = { .mci_removed = false, + .core_vendor_spec = 0x10c, .core_vendor_spec_capabilities0 = 0x11c, }; static const struct msm_sdhc_variant_info msm_sdhc_v5_var = { .mci_removed = true, + .core_vendor_spec = 0x20c, .core_vendor_spec_capabilities0 = 0x21c, }; diff --git a/drivers/mmc/sdhci-cadence.c b/drivers/mmc/sdhci-cadence.c index 07ec35a0463..7d169efa476 100644 --- a/drivers/mmc/sdhci-cadence.c +++ b/drivers/mmc/sdhci-cadence.c @@ -16,56 +16,7 @@ #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; @@ -162,6 +113,9 @@ 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 = { @@ -175,6 +129,9 @@ 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; @@ -281,7 +238,10 @@ 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; @@ -300,6 +260,7 @@ 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 00000000000..7101f00b75b --- /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@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 00000000000..a5ed87321ab --- /dev/null +++ b/drivers/mmc/sdhci-cadence6.c @@ -0,0 +1,293 @@ +// SPDX-License-Identifier: GPL-2.0-or-platform_driver +/* + * Copyright (C) 2023 Starfive. + * Author: Kuan Lim Lee <kuanlim.lee@starfivetech.com> + */ + +#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; +} diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 560b7e889c7..4833b5158c7 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -32,8 +32,7 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask) sdhci_writeb(host, mask, SDHCI_SOFTWARE_RESET); while (sdhci_readb(host, SDHCI_SOFTWARE_RESET) & mask) { if (timeout == 0) { - printf("%s: Reset 0x%x never completed.\n", - __func__, (int)mask); + log_warning("Reset %#x never completed\n", mask); return; } timeout--; @@ -139,8 +138,7 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data) do { stat = sdhci_readl(host, SDHCI_INT_STATUS); if (stat & SDHCI_INT_ERROR) { - pr_debug("%s: Error detected in status(0x%X)!\n", - __func__, stat); + log_debug("Error detected in status(%#x)!\n", stat); return -EIO; } if (!transfer_done && (stat & rdy)) { @@ -173,7 +171,7 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data) if (timeout-- > 0) udelay(10); else { - printf("%s: Transfer data timeout\n", __func__); + log_err("Transfer data timeout\n"); return -ETIMEDOUT; } } while (!(stat & SDHCI_INT_DATA_END)); @@ -232,13 +230,13 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) { if (time >= cmd_timeout) { - printf("%s: MMC: %d busy ", __func__, mmc_dev); + log_warning("mmc%d busy ", mmc_dev); if (2 * cmd_timeout <= SDHCI_CMD_MAX_TIMEOUT) { cmd_timeout += cmd_timeout; - printf("timeout increasing to: %u ms.\n", - cmd_timeout); + log_warning("timeout increasing to: %u ms\n", + cmd_timeout); } else { - puts("timeout.\n"); + log_warning("timeout\n"); return -ECOMM; } } @@ -316,8 +314,8 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, } if (get_timer(start) >= SDHCI_READ_STATUS_TIMEOUT) { - printf("%s: Timeout for status update: %08x %08x\n", - __func__, stat, mask); + log_warning("Timeout for status update: %08x %08x\n", + stat, mask); return -ETIMEDOUT; } } while ((stat & mask) != mask); @@ -358,7 +356,7 @@ static int sdhci_execute_tuning(struct udevice *dev, uint opcode) struct mmc *mmc = mmc_get_mmc_dev(dev); struct sdhci_host *host = mmc->priv; - debug("%s\n", __func__); + log_debug("sdhci tuning\n"); if (host->ops && host->ops->platform_execute_tuning) { err = host->ops->platform_execute_tuning(mmc, opcode); @@ -380,8 +378,7 @@ int sdhci_set_clock(struct mmc *mmc, unsigned int clock) while (sdhci_readl(host, SDHCI_PRESENT_STATE) & (SDHCI_CMD_INHIBIT | SDHCI_DATA_INHIBIT)) { if (timeout == 0) { - printf("%s: Timeout to wait cmd & data inhibit\n", - __func__); + log_err("Timeout waiting for cmd & data inhibit\n"); return -EBUSY; } @@ -397,7 +394,7 @@ int sdhci_set_clock(struct mmc *mmc, unsigned int clock) if (host->ops && host->ops->set_delay) { ret = host->ops->set_delay(host); if (ret) { - printf("%s: Error while setting tap delay\n", __func__); + log_err("Error while setting tap delay\n"); return ret; } } @@ -405,7 +402,7 @@ int sdhci_set_clock(struct mmc *mmc, unsigned int clock) if (host->ops && host->ops->config_dll) { ret = host->ops->config_dll(host, clock, false); if (ret) { - printf("%s: Error while configuring dll\n", __func__); + log_err("Error configuring dll\n"); return ret; } } @@ -456,7 +453,7 @@ int sdhci_set_clock(struct mmc *mmc, unsigned int clock) if (host->ops && host->ops->config_dll) { ret = host->ops->config_dll(host, clock, true); if (ret) { - printf("%s: Error while configuring dll\n", __func__); + log_err("Error while configuring dll\n"); return ret; } } @@ -472,8 +469,7 @@ int sdhci_set_clock(struct mmc *mmc, unsigned int clock) while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL)) & SDHCI_CLOCK_INT_STABLE)) { if (timeout == 0) { - printf("%s: Internal clock never stabilised.\n", - __func__); + log_err("Internal clock never stabilised.\n"); return -EBUSY; } timeout--; @@ -738,8 +734,7 @@ static int sdhci_init(struct mmc *mmc) if (host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) { host->align_buffer = memalign(8, 512 * 1024); if (!host->align_buffer) { - printf("%s: Aligned buffer alloc failed!!!\n", - __func__); + log_err("Aligned buffer alloc failed\n"); return -ENOMEM; } } @@ -881,20 +876,18 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, #else caps = sdhci_readl(host, SDHCI_CAPABILITIES); #endif - debug("%s, caps: 0x%x\n", __func__, caps); + log_debug("caps: %#x\n", caps); #if CONFIG_IS_ENABLED(MMC_SDHCI_SDMA) if ((caps & SDHCI_CAN_DO_SDMA)) { host->flags |= USE_SDMA; } else { - debug("%s: Your controller doesn't support SDMA!!\n", - __func__); + log_debug("Controller doesn't support SDMA\n"); } #endif #if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA) if (!(caps & SDHCI_CAN_DO_ADMA2)) { - printf("%s: Your controller doesn't support ADMA!!\n", - __func__); + log_err("Controller doesn't support ADMA\n"); return -EINVAL; } if (!host->adma_desc_table) { @@ -927,7 +920,7 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, #else caps_1 = sdhci_readl(host, SDHCI_CAPABILITIES_1); #endif - debug("%s, caps_1: 0x%x\n", __func__, caps_1); + log_debug("caps_1: %#x\n", caps_1); host->clk_mul = (caps_1 & SDHCI_CLOCK_MUL_MASK) >> SDHCI_CLOCK_MUL_SHIFT; @@ -953,8 +946,7 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, host->max_clk *= host->clk_mul; } if (host->max_clk == 0) { - printf("%s: Hardware doesn't specify base clock frequency\n", - __func__); + log_err("Hardware doesn't specify base clock frequency\n"); return -EINVAL; } if (f_max && (f_max < host->max_clk)) @@ -1047,7 +1039,7 @@ int add_sdhci(struct sdhci_host *host, u32 f_max, u32 f_min) host->mmc = mmc_create(&host->cfg, host); if (host->mmc == NULL) { - printf("%s: mmc create fail!\n", __func__); + log_err("mmc create fail\n"); return -ENOMEM; } diff --git a/drivers/mmc/snps_dw_mmc.c b/drivers/mmc/snps_dw_mmc.c index f30331e51f7..47ab5654bd6 100644 --- a/drivers/mmc/snps_dw_mmc.c +++ b/drivers/mmc/snps_dw_mmc.c @@ -12,6 +12,7 @@ #include <dwmmc.h> #include <errno.h> #include <fdtdec.h> +#include <asm/gpio.h> #include <dm/device_compat.h> #include <linux/libfdt.h> #include <linux/err.h> @@ -29,6 +30,7 @@ struct snps_dwmci_plat { struct snps_dwmci_priv_data { struct dwmci_host host; u32 f_max; + struct gpio_desc cd_gpio; }; static int snps_dwmmc_clk_setup(struct udevice *dev) @@ -104,6 +106,10 @@ static int snps_dwmmc_of_to_plat(struct udevice *dev) if (!ret && priv->f_max < CLOCK_MIN) return -EINVAL; + if (CONFIG_IS_ENABLED(DM_GPIO)) + gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio, + GPIOD_IS_IN); + host->fifo_mode = dev_read_bool(dev, "fifo-mode"); host->name = dev->name; host->dev_index = 0; @@ -117,6 +123,9 @@ int snps_dwmmc_getcd(struct udevice *dev) struct snps_dwmci_priv_data *priv = dev_get_priv(dev); struct dwmci_host *host = &priv->host; + if (CONFIG_IS_ENABLED(DM_GPIO) && dm_gpio_is_valid(&priv->cd_gpio)) + return dm_gpio_get_value(&priv->cd_gpio); + return !(dwmci_readl(host, DWMCI_CDETECT) & 1); } |