--- /dev/null
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/* Define a simple and generic interface to access eMMC and SD-card devices. */
+
+#include <arch_helpers.h>
+#include <assert.h>
+#include <debug.h>
+#include <errno.h>
+#include <mmc.h>
+#include <stdbool.h>
+#include <string.h>
+#include <utils.h>
+
+#define MMC_DEFAULT_MAX_RETRIES 5
+#define SEND_OP_COND_MAX_RETRIES 100
+
+#define MULT_BY_512K_SHIFT 19
+
+static const struct mmc_ops *ops;
+static unsigned int mmc_ocr_value;
+static struct mmc_csd_emmc mmc_csd;
+static unsigned char mmc_ext_csd[512] __aligned(4);
+static unsigned int mmc_flags;
+static struct mmc_device_info *mmc_dev_info;
+static unsigned int rca;
+
+static const unsigned char tran_speed_base[16] = {
+ 0, 10, 12, 13, 15, 20, 26, 30, 35, 40, 45, 52, 55, 60, 70, 80
+};
+
+static const unsigned char sd_tran_speed_base[16] = {
+ 0, 10, 12, 13, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80
+};
+
+static bool is_cmd23_enabled(void)
+{
+ return ((mmc_flags & MMC_FLAG_CMD23) != 0U);
+}
+
+static int mmc_send_cmd(unsigned int idx, unsigned int arg,
+ unsigned int r_type, unsigned int *r_data)
+{
+ struct mmc_cmd cmd;
+ int ret;
+
+ zeromem(&cmd, sizeof(struct mmc_cmd));
+
+ cmd.cmd_idx = idx;
+ cmd.cmd_arg = arg;
+ cmd.resp_type = r_type;
+
+ ret = ops->send_cmd(&cmd);
+
+ if ((ret == 0) && (r_data != NULL)) {
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ *r_data = cmd.resp_data[i];
+ r_data++;
+ }
+ }
+
+ if (ret != 0) {
+ VERBOSE("Send command %u error: %d\n", idx, ret);
+ }
+
+ return ret;
+}
+
+static int mmc_device_state(void)
+{
+ int retries = MMC_DEFAULT_MAX_RETRIES;
+ unsigned int resp_data[4];
+
+ do {
+ int ret;
+
+ if (retries == 0) {
+ ERROR("CMD13 failed after %d retries\n",
+ MMC_DEFAULT_MAX_RETRIES);
+ return -EIO;
+ }
+
+ ret = mmc_send_cmd(MMC_CMD(13), rca << RCA_SHIFT_OFFSET,
+ MMC_RESPONSE_R(1), &resp_data[0]);
+ if (ret != 0) {
+ return ret;
+ }
+
+ if ((resp_data[0] & STATUS_SWITCH_ERROR) != 0U) {
+ return -EIO;
+ }
+
+ retries--;
+ } while ((resp_data[0] & STATUS_READY_FOR_DATA) == 0U);
+
+ return MMC_GET_STATE(resp_data[0]);
+}
+
+static int mmc_set_ext_csd(unsigned int ext_cmd, unsigned int value)
+{
+ int ret;
+
+ ret = mmc_send_cmd(MMC_CMD(6),
+ EXTCSD_WRITE_BYTES | EXTCSD_CMD(ext_cmd) |
+ EXTCSD_VALUE(value) | EXTCSD_CMD_SET_NORMAL,
+ 0, NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
+ do {
+ ret = mmc_device_state();
+ if (ret < 0) {
+ return ret;
+ }
+ } while (ret == MMC_STATE_PRG);
+
+ return 0;
+}
+
+static int mmc_sd_switch(unsigned int bus_width)
+{
+ int ret;
+ int retries = MMC_DEFAULT_MAX_RETRIES;
+ unsigned int scr[2] = { 0 };
+ unsigned int bus_width_arg = 0;
+
+ ret = ops->prepare(0, (uintptr_t)&scr, sizeof(scr));
+ if (ret != 0) {
+ return ret;
+ }
+
+ /* CMD55: Application Specific Command */
+ ret = mmc_send_cmd(MMC_CMD(55), rca << RCA_SHIFT_OFFSET,
+ MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
+ /* ACMD51: SEND_SCR */
+ do {
+ ret = mmc_send_cmd(MMC_ACMD(51), 0, MMC_RESPONSE_R(1), NULL);
+ if ((ret != 0) && (retries == 0)) {
+ ERROR("ACMD51 failed after %d retries (ret=%d)\n",
+ MMC_DEFAULT_MAX_RETRIES, ret);
+ return ret;
+ }
+
+ retries--;
+ } while (ret != 0);
+
+ ret = ops->read(0, (uintptr_t)&scr, sizeof(scr));
+ if (ret != 0) {
+ return ret;
+ }
+
+ if (((scr[0] & SD_SCR_BUS_WIDTH_4) != 0U) &&
+ (bus_width == MMC_BUS_WIDTH_4)) {
+ bus_width_arg = 2;
+ }
+
+ /* CMD55: Application Specific Command */
+ ret = mmc_send_cmd(MMC_CMD(55), rca << RCA_SHIFT_OFFSET,
+ MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
+ /* ACMD6: SET_BUS_WIDTH */
+ ret = mmc_send_cmd(MMC_ACMD(6), bus_width_arg, MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
+ do {
+ ret = mmc_device_state();
+ if (ret < 0) {
+ return ret;
+ }
+ } while (ret == MMC_STATE_PRG);
+
+ return 0;
+}
+
+static int mmc_set_ios(unsigned int clk, unsigned int bus_width)
+{
+ int ret;
+ unsigned int width = bus_width;
+
+ if (mmc_dev_info->mmc_dev_type != MMC_IS_EMMC) {
+ if (width == MMC_BUS_WIDTH_8) {
+ WARN("Wrong bus config for SD-card, force to 4\n");
+ width = MMC_BUS_WIDTH_4;
+ }
+ ret = mmc_sd_switch(width);
+ if (ret != 0) {
+ return ret;
+ }
+ } else if (mmc_csd.spec_vers == 4U) {
+ ret = mmc_set_ext_csd(CMD_EXTCSD_BUS_WIDTH,
+ (unsigned int)width);
+ if (ret != 0) {
+ return ret;
+ }
+ } else {
+ VERBOSE("Wrong MMC type or spec version\n");
+ }
+
+ return ops->set_ios(clk, width);
+}
+
+static int mmc_fill_device_info(void)
+{
+ unsigned long long c_size;
+ unsigned int speed_idx;
+ unsigned int nb_blocks;
+ unsigned int freq_unit;
+ int ret;
+ struct mmc_csd_sd_v2 *csd_sd_v2;
+
+ switch (mmc_dev_info->mmc_dev_type) {
+ case MMC_IS_EMMC:
+ mmc_dev_info->block_size = MMC_BLOCK_SIZE;
+
+ ret = ops->prepare(0, (uintptr_t)&mmc_ext_csd,
+ sizeof(mmc_ext_csd));
+ if (ret != 0) {
+ return ret;
+ }
+
+ /* MMC CMD8: SEND_EXT_CSD */
+ ret = mmc_send_cmd(MMC_CMD(8), 0, MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
+ ret = ops->read(0, (uintptr_t)&mmc_ext_csd,
+ sizeof(mmc_ext_csd));
+ if (ret != 0) {
+ return ret;
+ }
+
+ nb_blocks = (mmc_ext_csd[CMD_EXTCSD_SEC_CNT] << 0) |
+ (mmc_ext_csd[CMD_EXTCSD_SEC_CNT + 1] << 8) |
+ (mmc_ext_csd[CMD_EXTCSD_SEC_CNT + 2] << 16) |
+ (mmc_ext_csd[CMD_EXTCSD_SEC_CNT + 3] << 24);
+
+ mmc_dev_info->device_size = (unsigned long long)nb_blocks *
+ mmc_dev_info->block_size;
+
+ break;
+
+ case MMC_IS_SD:
+ /*
+ * Use the same mmc_csd struct, as required fields here
+ * (READ_BL_LEN, C_SIZE, CSIZE_MULT) are common with eMMC.
+ */
+ mmc_dev_info->block_size = BIT_32(mmc_csd.read_bl_len);
+
+ c_size = ((unsigned long long)mmc_csd.c_size_high << 2U) |
+ (unsigned long long)mmc_csd.c_size_low;
+ assert(c_size != 0xFFFU);
+
+ mmc_dev_info->device_size = (c_size + 1U) *
+ BIT_64(mmc_csd.c_size_mult + 2U) *
+ mmc_dev_info->block_size;
+
+ break;
+
+ case MMC_IS_SD_HC:
+ assert(mmc_csd.csd_structure == 1U);
+
+ mmc_dev_info->block_size = MMC_BLOCK_SIZE;
+
+ /* Need to use mmc_csd_sd_v2 struct */
+ csd_sd_v2 = (struct mmc_csd_sd_v2 *)&mmc_csd;
+ c_size = ((unsigned long long)csd_sd_v2->c_size_high << 16) |
+ (unsigned long long)csd_sd_v2->c_size_low;
+
+ mmc_dev_info->device_size = (c_size + 1U) << MULT_BY_512K_SHIFT;
+
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ if (ret != 0) {
+ return ret;
+ }
+
+ speed_idx = (mmc_csd.tran_speed & CSD_TRAN_SPEED_MULT_MASK) >>
+ CSD_TRAN_SPEED_MULT_SHIFT;
+
+ assert(speed_idx > 0U);
+
+ if (mmc_dev_info->mmc_dev_type == MMC_IS_EMMC) {
+ mmc_dev_info->max_bus_freq = tran_speed_base[speed_idx];
+ } else {
+ mmc_dev_info->max_bus_freq = sd_tran_speed_base[speed_idx];
+ }
+
+ freq_unit = mmc_csd.tran_speed & CSD_TRAN_SPEED_UNIT_MASK;
+ while (freq_unit != 0U) {
+ mmc_dev_info->max_bus_freq *= 10U;
+ --freq_unit;
+ }
+
+ mmc_dev_info->max_bus_freq *= 10000U;
+
+ return 0;
+}
+
+static int sd_send_op_cond(void)
+{
+ int retries = SEND_OP_COND_MAX_RETRIES;
+ unsigned int resp_data[4];
+
+ do {
+ int ret;
+
+ if (retries == 0) {
+ ERROR("ACMD41 failed after %d retries\n",
+ SEND_OP_COND_MAX_RETRIES);
+ return -EIO;
+ }
+
+ /* CMD55: Application Specific Command */
+ ret = mmc_send_cmd(MMC_CMD(55), 0, MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
+ /* ACMD41: SD_SEND_OP_COND */
+ ret = mmc_send_cmd(MMC_ACMD(41), OCR_HCS, MMC_RESPONSE_R(3),
+ &resp_data[0]);
+ if (ret != 0) {
+ return ret;
+ }
+
+ retries--;
+ } while ((resp_data[0] & OCR_POWERUP) == 0U);
+
+ mmc_ocr_value = resp_data[0];
+
+ if ((mmc_ocr_value & OCR_HCS) != 0U) {
+ mmc_dev_info->mmc_dev_type = MMC_IS_SD_HC;
+ } else {
+ mmc_dev_info->mmc_dev_type = MMC_IS_SD;
+ }
+
+ return 0;
+}
+
+static int mmc_send_op_cond(void)
+{
+ int ret;
+ int retries = SEND_OP_COND_MAX_RETRIES;
+ unsigned int resp_data[4];
+
+ /* CMD0: reset to IDLE */
+ ret = mmc_send_cmd(MMC_CMD(0), 0, 0, NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
+ do {
+ if (retries == 0) {
+ ERROR("CMD1 failed after %d retries\n",
+ SEND_OP_COND_MAX_RETRIES);
+ return -EIO;
+ }
+
+ /* CMD1: get OCR register (SEND_OP_COND) */
+ ret = mmc_send_cmd(MMC_CMD(1), OCR_SECTOR_MODE |
+ OCR_VDD_MIN_2V7 | OCR_VDD_MIN_1V7,
+ MMC_RESPONSE_R(3), &resp_data[0]);
+ if (ret != 0) {
+ return ret;
+ }
+
+ retries--;
+ } while ((resp_data[0] & OCR_POWERUP) == 0U);
+
+ mmc_ocr_value = resp_data[0];
+
+ return 0;
+}
+
+static int mmc_enumerate(unsigned int clk, unsigned int bus_width)
+{
+ int ret;
+ unsigned int resp_data[4];
+
+ ops->init();
+
+ /* CMD0: reset to IDLE */
+ ret = mmc_send_cmd(MMC_CMD(0), 0, 0, NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
+ /* CMD8: Send Interface Condition Command */
+ ret = mmc_send_cmd(MMC_CMD(8), VHS_2_7_3_6_V | CMD8_CHECK_PATTERN,
+ MMC_RESPONSE_R(7), &resp_data[0]);
+
+ if ((ret == 0) && ((resp_data[0] & 0xffU) == CMD8_CHECK_PATTERN)) {
+ ret = sd_send_op_cond();
+ } else {
+ ret = mmc_send_op_cond();
+ }
+ if (ret != 0) {
+ return ret;
+ }
+
+ /* CMD2: Card Identification */
+ ret = mmc_send_cmd(MMC_CMD(2), 0, MMC_RESPONSE_R(2), NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
+ /* CMD3: Set Relative Address */
+ if (mmc_dev_info->mmc_dev_type == MMC_IS_EMMC) {
+ rca = MMC_FIX_RCA;
+ ret = mmc_send_cmd(MMC_CMD(3), rca << RCA_SHIFT_OFFSET,
+ MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return ret;
+ }
+ } else {
+ ret = mmc_send_cmd(MMC_CMD(3), 0,
+ MMC_RESPONSE_R(6), &resp_data[0]);
+ if (ret != 0) {
+ return ret;
+ }
+
+ rca = (resp_data[0] & 0xFFFF0000U) >> 16;
+ }
+
+ /* CMD9: CSD Register */
+ ret = mmc_send_cmd(MMC_CMD(9), rca << RCA_SHIFT_OFFSET,
+ MMC_RESPONSE_R(2), &resp_data[0]);
+ if (ret != 0) {
+ return ret;
+ }
+
+ memcpy(&mmc_csd, &resp_data, sizeof(resp_data));
+
+ /* CMD7: Select Card */
+ ret = mmc_send_cmd(MMC_CMD(7), rca << RCA_SHIFT_OFFSET,
+ MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
+ do {
+ ret = mmc_device_state();
+ if (ret < 0) {
+ return ret;
+ }
+ } while (ret != MMC_STATE_TRAN);
+
+ ret = mmc_fill_device_info();
+ if (ret != 0) {
+ return ret;
+ }
+
+ return mmc_set_ios(clk, bus_width);
+}
+
+size_t mmc_read_blocks(unsigned int lba, uintptr_t buf, size_t size)
+{
+ int ret;
+ unsigned int cmd_idx, cmd_arg;
+
+ assert((ops != NULL) &&
+ (ops->read != NULL) &&
+ (size != 0U) &&
+ ((size & MMC_BLOCK_MASK) == 0U));
+
+ ret = ops->prepare(lba, buf, size);
+ if (ret != 0) {
+ return 0;
+ }
+
+ if (is_cmd23_enabled()) {
+ /* Set block count */
+ ret = mmc_send_cmd(MMC_CMD(23), size / MMC_BLOCK_SIZE,
+ MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return 0;
+ }
+
+ cmd_idx = MMC_CMD(18);
+ } else {
+ if (size > MMC_BLOCK_SIZE) {
+ cmd_idx = MMC_CMD(18);
+ } else {
+ cmd_idx = MMC_CMD(17);
+ }
+ }
+
+ if (((mmc_ocr_value & OCR_ACCESS_MODE_MASK) == OCR_BYTE_MODE) &&
+ (mmc_dev_info->mmc_dev_type != MMC_IS_SD_HC)) {
+ cmd_arg = lba * MMC_BLOCK_SIZE;
+ } else {
+ cmd_arg = lba;
+ }
+
+ ret = mmc_send_cmd(cmd_idx, cmd_arg, MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return 0;
+ }
+
+ ret = ops->read(lba, buf, size);
+ if (ret != 0) {
+ return 0;
+ }
+
+ /* Wait buffer empty */
+ do {
+ ret = mmc_device_state();
+ if (ret < 0) {
+ return 0;
+ }
+ } while ((ret != MMC_STATE_TRAN) && (ret != MMC_STATE_DATA));
+
+ if (!is_cmd23_enabled() && (size > MMC_BLOCK_SIZE)) {
+ ret = mmc_send_cmd(MMC_CMD(12), 0, 0, NULL);
+ if (ret != 0) {
+ return 0;
+ }
+ }
+
+ return size;
+}
+
+size_t mmc_write_blocks(unsigned int lba, const uintptr_t buf, size_t size)
+{
+ int ret;
+ unsigned int cmd_idx, cmd_arg;
+
+ assert((ops != NULL) &&
+ (ops->write != NULL) &&
+ (size != 0U) &&
+ ((buf & MMC_BLOCK_MASK) == 0U) &&
+ ((size & MMC_BLOCK_MASK) == 0U));
+
+ ret = ops->prepare(lba, buf, size);
+ if (ret != 0) {
+ return 0;
+ }
+
+ if (is_cmd23_enabled()) {
+ /* Set block count */
+ ret = mmc_send_cmd(MMC_CMD(23), size / MMC_BLOCK_SIZE,
+ MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return 0;
+ }
+
+ cmd_idx = MMC_CMD(25);
+ } else {
+ if (size > MMC_BLOCK_SIZE) {
+ cmd_idx = MMC_CMD(25);
+ } else {
+ cmd_idx = MMC_CMD(24);
+ }
+ }
+
+ if ((mmc_ocr_value & OCR_ACCESS_MODE_MASK) == OCR_BYTE_MODE) {
+ cmd_arg = lba * MMC_BLOCK_SIZE;
+ } else {
+ cmd_arg = lba;
+ }
+
+ ret = mmc_send_cmd(cmd_idx, cmd_arg, MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return 0;
+ }
+
+ ret = ops->write(lba, buf, size);
+ if (ret != 0) {
+ return 0;
+ }
+
+ /* Wait buffer empty */
+ do {
+ ret = mmc_device_state();
+ if (ret < 0) {
+ return 0;
+ }
+ } while ((ret != MMC_STATE_TRAN) && (ret != MMC_STATE_RCV));
+
+ if (!is_cmd23_enabled() && (size > MMC_BLOCK_SIZE)) {
+ ret = mmc_send_cmd(MMC_CMD(12), 0, 0, NULL);
+ if (ret != 0) {
+ return 0;
+ }
+ }
+
+ return size;
+}
+
+size_t mmc_erase_blocks(unsigned int lba, size_t size)
+{
+ int ret;
+
+ assert(ops != NULL);
+ assert((size != 0U) && ((size & MMC_BLOCK_MASK) == 0U));
+
+ ret = mmc_send_cmd(MMC_CMD(35), lba, MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return 0;
+ }
+
+ ret = mmc_send_cmd(MMC_CMD(36), lba + (size / MMC_BLOCK_SIZE) - 1U,
+ MMC_RESPONSE_R(1), NULL);
+ if (ret != 0) {
+ return 0;
+ }
+
+ ret = mmc_send_cmd(MMC_CMD(38), lba, MMC_RESPONSE_R(0x1B), NULL);
+ if (ret != 0) {
+ return 0;
+ }
+
+ do {
+ ret = mmc_device_state();
+ if (ret < 0) {
+ return 0;
+ }
+ } while (ret != MMC_STATE_TRAN);
+
+ return size;
+}
+
+static inline void mmc_rpmb_enable(void)
+{
+ mmc_set_ext_csd(CMD_EXTCSD_PARTITION_CONFIG,
+ PART_CFG_BOOT_PARTITION1_ENABLE |
+ PART_CFG_PARTITION1_ACCESS);
+}
+
+static inline void mmc_rpmb_disable(void)
+{
+ mmc_set_ext_csd(CMD_EXTCSD_PARTITION_CONFIG,
+ PART_CFG_BOOT_PARTITION1_ENABLE);
+}
+
+size_t mmc_rpmb_read_blocks(unsigned int lba, uintptr_t buf, size_t size)
+{
+ size_t size_read;
+
+ mmc_rpmb_enable();
+ size_read = mmc_read_blocks(lba, buf, size);
+ mmc_rpmb_disable();
+
+ return size_read;
+}
+
+size_t mmc_rpmb_write_blocks(unsigned int lba, const uintptr_t buf, size_t size)
+{
+ size_t size_written;
+
+ mmc_rpmb_enable();
+ size_written = mmc_write_blocks(lba, buf, size);
+ mmc_rpmb_disable();
+
+ return size_written;
+}
+
+size_t mmc_rpmb_erase_blocks(unsigned int lba, size_t size)
+{
+ size_t size_erased;
+
+ mmc_rpmb_enable();
+ size_erased = mmc_erase_blocks(lba, size);
+ mmc_rpmb_disable();
+
+ return size_erased;
+}
+
+int mmc_init(const struct mmc_ops *ops_ptr, unsigned int clk,
+ unsigned int width, unsigned int flags,
+ struct mmc_device_info *device_info)
+{
+ assert((ops_ptr != NULL) &&
+ (ops_ptr->init != NULL) &&
+ (ops_ptr->send_cmd != NULL) &&
+ (ops_ptr->set_ios != NULL) &&
+ (ops_ptr->prepare != NULL) &&
+ (ops_ptr->read != NULL) &&
+ (ops_ptr->write != NULL) &&
+ (device_info != NULL) &&
+ (clk != 0) &&
+ ((width == MMC_BUS_WIDTH_1) ||
+ (width == MMC_BUS_WIDTH_4) ||
+ (width == MMC_BUS_WIDTH_8) ||
+ (width == MMC_BUS_WIDTH_DDR_4) ||
+ (width == MMC_BUS_WIDTH_DDR_8)));
+
+ ops = ops_ptr;
+ mmc_flags = flags;
+ mmc_dev_info = device_info;
+
+ return mmc_enumerate(clk, width);
+}
--- /dev/null
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __MMC_H__
+#define __MMC_H__
+
+#include <stdint.h>
+#include <utils_def.h>
+
+#define MMC_BLOCK_SIZE U(512)
+#define MMC_BLOCK_MASK (MMC_BLOCK_SIZE - U(1))
+#define MMC_BOOT_CLK_RATE (400 * 1000)
+
+#define MMC_CMD(_x) U(_x)
+
+#define MMC_ACMD(_x) U(_x)
+
+#define OCR_POWERUP BIT(31)
+#define OCR_HCS BIT(30)
+#define OCR_BYTE_MODE (U(0) << 29)
+#define OCR_SECTOR_MODE (U(2) << 29)
+#define OCR_ACCESS_MODE_MASK (U(3) << 29)
+#define OCR_3_5_3_6 BIT(23)
+#define OCR_3_4_3_5 BIT(22)
+#define OCR_3_3_3_4 BIT(21)
+#define OCR_3_2_3_3 BIT(20)
+#define OCR_3_1_3_2 BIT(19)
+#define OCR_3_0_3_1 BIT(18)
+#define OCR_2_9_3_0 BIT(17)
+#define OCR_2_8_2_9 BIT(16)
+#define OCR_2_7_2_8 BIT(15)
+#define OCR_VDD_MIN_2V7 GENMASK(23, 15)
+#define OCR_VDD_MIN_2V0 GENMASK(14, 8)
+#define OCR_VDD_MIN_1V7 BIT(7)
+
+#define MMC_RESPONSE_R(_x) U(_x)
+
+/* Value randomly chosen for eMMC RCA, it should be > 1 */
+#define MMC_FIX_RCA 6
+#define RCA_SHIFT_OFFSET 16
+
+#define CMD_EXTCSD_PARTITION_CONFIG 179
+#define CMD_EXTCSD_BUS_WIDTH 183
+#define CMD_EXTCSD_HS_TIMING 185
+#define CMD_EXTCSD_SEC_CNT 212
+
+#define PART_CFG_BOOT_PARTITION1_ENABLE (U(1) << 3)
+#define PART_CFG_PARTITION1_ACCESS (U(1) << 0)
+
+/* Values in EXT CSD register */
+#define MMC_BUS_WIDTH_1 U(0)
+#define MMC_BUS_WIDTH_4 U(1)
+#define MMC_BUS_WIDTH_8 U(2)
+#define MMC_BUS_WIDTH_DDR_4 U(5)
+#define MMC_BUS_WIDTH_DDR_8 U(6)
+#define MMC_BOOT_MODE_BACKWARD (U(0) << 3)
+#define MMC_BOOT_MODE_HS_TIMING (U(1) << 3)
+#define MMC_BOOT_MODE_DDR (U(2) << 3)
+
+#define EXTCSD_SET_CMD (U(0) << 24)
+#define EXTCSD_SET_BITS (U(1) << 24)
+#define EXTCSD_CLR_BITS (U(2) << 24)
+#define EXTCSD_WRITE_BYTES (U(3) << 24)
+#define EXTCSD_CMD(x) (((x) & 0xff) << 16)
+#define EXTCSD_VALUE(x) (((x) & 0xff) << 8)
+#define EXTCSD_CMD_SET_NORMAL U(1)
+
+#define CSD_TRAN_SPEED_UNIT_MASK GENMASK(2, 0)
+#define CSD_TRAN_SPEED_MULT_MASK GENMASK(6, 3)
+#define CSD_TRAN_SPEED_MULT_SHIFT 3
+
+#define STATUS_CURRENT_STATE(x) (((x) & 0xf) << 9)
+#define STATUS_READY_FOR_DATA BIT(8)
+#define STATUS_SWITCH_ERROR BIT(7)
+#define MMC_GET_STATE(x) (((x) >> 9) & 0xf)
+#define MMC_STATE_IDLE 0
+#define MMC_STATE_READY 1
+#define MMC_STATE_IDENT 2
+#define MMC_STATE_STBY 3
+#define MMC_STATE_TRAN 4
+#define MMC_STATE_DATA 5
+#define MMC_STATE_RCV 6
+#define MMC_STATE_PRG 7
+#define MMC_STATE_DIS 8
+#define MMC_STATE_BTST 9
+#define MMC_STATE_SLP 10
+
+#define MMC_FLAG_CMD23 (U(1) << 0)
+
+#define CMD8_CHECK_PATTERN U(0xAA)
+#define VHS_2_7_3_6_V BIT(8)
+
+#define SD_SCR_BUS_WIDTH_1 BIT(8)
+#define SD_SCR_BUS_WIDTH_4 BIT(10)
+
+struct mmc_cmd {
+ unsigned int cmd_idx;
+ unsigned int cmd_arg;
+ unsigned int resp_type;
+ unsigned int resp_data[4];
+};
+
+struct mmc_ops {
+ void (*init)(void);
+ int (*send_cmd)(struct mmc_cmd *cmd);
+ int (*set_ios)(unsigned int clk, unsigned int width);
+ int (*prepare)(int lba, uintptr_t buf, size_t size);
+ int (*read)(int lba, uintptr_t buf, size_t size);
+ int (*write)(int lba, const uintptr_t buf, size_t size);
+};
+
+struct mmc_csd_emmc {
+ unsigned int not_used: 1;
+ unsigned int crc: 7;
+ unsigned int ecc: 2;
+ unsigned int file_format: 2;
+ unsigned int tmp_write_protect: 1;
+ unsigned int perm_write_protect: 1;
+ unsigned int copy: 1;
+ unsigned int file_format_grp: 1;
+
+ unsigned int reserved_1: 5;
+ unsigned int write_bl_partial: 1;
+ unsigned int write_bl_len: 4;
+ unsigned int r2w_factor: 3;
+ unsigned int default_ecc: 2;
+ unsigned int wp_grp_enable: 1;
+
+ unsigned int wp_grp_size: 5;
+ unsigned int erase_grp_mult: 5;
+ unsigned int erase_grp_size: 5;
+ unsigned int c_size_mult: 3;
+ unsigned int vdd_w_curr_max: 3;
+ unsigned int vdd_w_curr_min: 3;
+ unsigned int vdd_r_curr_max: 3;
+ unsigned int vdd_r_curr_min: 3;
+ unsigned int c_size_low: 2;
+
+ unsigned int c_size_high: 10;
+ unsigned int reserved_2: 2;
+ unsigned int dsr_imp: 1;
+ unsigned int read_blk_misalign: 1;
+ unsigned int write_blk_misalign: 1;
+ unsigned int read_bl_partial: 1;
+ unsigned int read_bl_len: 4;
+ unsigned int ccc: 12;
+
+ unsigned int tran_speed: 8;
+ unsigned int nsac: 8;
+ unsigned int taac: 8;
+ unsigned int reserved_3: 2;
+ unsigned int spec_vers: 4;
+ unsigned int csd_structure: 2;
+};
+
+struct mmc_csd_sd_v2 {
+ unsigned int not_used: 1;
+ unsigned int crc: 7;
+ unsigned int reserved_1: 2;
+ unsigned int file_format: 2;
+ unsigned int tmp_write_protect: 1;
+ unsigned int perm_write_protect: 1;
+ unsigned int copy: 1;
+ unsigned int file_format_grp: 1;
+
+ unsigned int reserved_2: 5;
+ unsigned int write_bl_partial: 1;
+ unsigned int write_bl_len: 4;
+ unsigned int r2w_factor: 3;
+ unsigned int reserved_3: 2;
+ unsigned int wp_grp_enable: 1;
+
+ unsigned int wp_grp_size: 7;
+ unsigned int sector_size: 7;
+ unsigned int erase_block_en: 1;
+ unsigned int reserved_4: 1;
+ unsigned int c_size_low: 16;
+
+ unsigned int c_size_high: 6;
+ unsigned int reserved_5: 6;
+ unsigned int dsr_imp: 1;
+ unsigned int read_blk_misalign: 1;
+ unsigned int write_blk_misalign: 1;
+ unsigned int read_bl_partial: 1;
+ unsigned int read_bl_len: 4;
+ unsigned int ccc: 12;
+
+ unsigned int tran_speed: 8;
+ unsigned int nsac: 8;
+ unsigned int taac: 8;
+ unsigned int reserved_6: 6;
+ unsigned int csd_structure: 2;
+};
+
+enum mmc_device_type {
+ MMC_IS_EMMC,
+ MMC_IS_SD,
+ MMC_IS_SD_HC,
+};
+
+struct mmc_device_info {
+ unsigned long long device_size; /* Size of device in bytes */
+ unsigned int block_size; /* Block size in bytes */
+ unsigned int max_bus_freq; /* Max bus freq in Hz */
+ enum mmc_device_type mmc_dev_type; /* Type of MMC */
+};
+
+size_t mmc_read_blocks(unsigned int lba, uintptr_t buf, size_t size);
+size_t mmc_write_blocks(unsigned int lba, const uintptr_t buf, size_t size);
+size_t mmc_erase_blocks(unsigned int lba, size_t size);
+size_t mmc_rpmb_read_blocks(unsigned int lba, uintptr_t buf, size_t size);
+size_t mmc_rpmb_write_blocks(unsigned int lba, const uintptr_t buf,
+ size_t size);
+size_t mmc_rpmb_erase_blocks(unsigned int lba, size_t size);
+int mmc_init(const struct mmc_ops *ops_ptr, unsigned int clk,
+ unsigned int width, unsigned int flags,
+ struct mmc_device_info *device_info);
+
+#endif /* __MMC_H__ */
projects / project / bcm63xx / atf.git / commitdiff