Merge pull request #1480 from sandrine-bailleux-arm/topics/sb/debug-macros
Always compile debug macros
diff --git a/docs/plat/rpi3.rst b/docs/plat/rpi3.rst
index 5ac9085..0ba564d 100644
--- a/docs/plat/rpi3.rst
+++ b/docs/plat/rpi3.rst
@@ -196,29 +196,19 @@
CROSS_COMPILE=aarch64-linux-gnu- make PLAT=rpi3 \
RPI3_BL33_IN_AARCH32=1 \
- BL33=../rpi3-arm-tf-bootstrap/aarch32/el2-bootstrap.bin \
- all fip
+ BL33=../rpi3-arm-tf-bootstrap/aarch32/el2-bootstrap.bin
For a AArch64 kernel, use this other command line:
.. code:: shell
CROSS_COMPILE=aarch64-linux-gnu- make PLAT=rpi3 \
- BL33=../rpi3-arm-tf-bootstrap/aarch64/el2-bootstrap.bin \
- all fip
-
-Then, join BL1 and the FIP with the following instructions (replace ``release``
-by ``debug`` if you set the build option ``DEBUG=1``):
-
-.. code:: shell
-
- cp build/rpi3/release/bl1.bin bl1.pad.bin
- truncate --size=131072 bl1.pad.bin
- cat bl1.pad.bin build/rpi3/release/fip.bin > armstub8.bin
+ BL33=../rpi3-arm-tf-bootstrap/aarch64/el2-bootstrap.bin
-The resulting file, ``armstub8.bin``, contains BL1 and the FIP in the place they
-need to be for TF-A to boot correctly. Now, follow the instructions in
-`Setup SD card`_.
+The build system concatenates BL1 and the FIP so that the addresses match the
+ones in the memory map. The resulting file is ``armstub8.bin``, located in the
+build folder (e.g. ``build/rpi3/debug/armstub8.bin``). Now, follow the
+instructions in `Setup SD card`_.
The following build options are supported:
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
new file mode 100644
index 0000000..8fe3239
--- /dev/null
+++ b/drivers/mmc/mmc.c
@@ -0,0 +1,714 @@
+/*
+ * 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);
+}
diff --git a/include/drivers/mmc.h b/include/drivers/mmc.h
new file mode 100644
index 0000000..65f4bbd
--- /dev/null
+++ b/include/drivers/mmc.h
@@ -0,0 +1,222 @@
+/*
+ * 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__ */
diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h
index 2d40630..42bbf38 100644
--- a/include/plat/arm/common/plat_arm.h
+++ b/include/plat/arm/common/plat_arm.h
@@ -171,7 +171,6 @@
int arm_validate_ns_entrypoint(uintptr_t entrypoint);
void arm_system_pwr_domain_save(void);
void arm_system_pwr_domain_resume(void);
-void arm_program_trusted_mailbox(uintptr_t address);
int arm_psci_read_mem_protect(int *enabled);
int arm_nor_psci_write_mem_protect(int val);
void arm_nor_psci_do_static_mem_protect(void);
@@ -250,6 +249,7 @@
void plat_arm_interconnect_init(void);
void plat_arm_interconnect_enter_coherency(void);
void plat_arm_interconnect_exit_coherency(void);
+void plat_arm_program_trusted_mailbox(uintptr_t address);
#if ARM_PLAT_MT
unsigned int plat_arm_get_cpu_pe_count(u_register_t mpidr);
diff --git a/plat/arm/common/arm_bl1_setup.c b/plat/arm/common/arm_bl1_setup.c
index 1c900b7..c9b1a68 100644
--- a/plat/arm/common/arm_bl1_setup.c
+++ b/plat/arm/common/arm_bl1_setup.c
@@ -144,7 +144,7 @@
* in order to release secondary CPUs from their holding pen and make
* them jump there.
*/
- arm_program_trusted_mailbox(ep_info->pc);
+ plat_arm_program_trusted_mailbox(ep_info->pc);
dsbsy();
sev();
#endif
diff --git a/plat/arm/common/arm_common.mk b/plat/arm/common/arm_common.mk
index 5330847..67b574d 100644
--- a/plat/arm/common/arm_common.mk
+++ b/plat/arm/common/arm_common.mk
@@ -166,7 +166,7 @@
plat/arm/common/arm_err.c \
plat/arm/common/arm_io_storage.c
ifdef EL3_PAYLOAD_BASE
-# Need the arm_program_trusted_mailbox() function to release secondary CPUs from
+# Need the plat_arm_program_trusted_mailbox() function to release secondary CPUs from
# their holding pen
BL1_SOURCES += plat/arm/common/arm_pm.c
endif
diff --git a/plat/arm/common/arm_pm.c b/plat/arm/common/arm_pm.c
index 4fdb10a..d0350d6 100644
--- a/plat/arm/common/arm_pm.c
+++ b/plat/arm/common/arm_pm.c
@@ -14,8 +14,9 @@
#include <platform_def.h>
#include <psci.h>
-/* Allow ARM Standard platforms to override this function */
+/* Allow ARM Standard platforms to override these functions */
#pragma weak plat_arm_psci_override_pm_ops
+#pragma weak plat_arm_program_trusted_mailbox
#if ARM_RECOM_STATE_ID_ENC
extern unsigned int arm_pm_idle_states[];
@@ -189,11 +190,11 @@
}
/*******************************************************************************
- * Private function to program the mailbox for a cpu before it is released
+ * ARM platform function to program the mailbox for a cpu before it is released
* from reset. This function assumes that the Trusted mail box base is within
* the ARM_SHARED_RAM region
******************************************************************************/
-void arm_program_trusted_mailbox(uintptr_t address)
+void plat_arm_program_trusted_mailbox(uintptr_t address)
{
uintptr_t *mailbox = (void *) PLAT_ARM_TRUSTED_MAILBOX_BASE;
@@ -218,6 +219,6 @@
*psci_ops = plat_arm_psci_override_pm_ops(&plat_arm_psci_pm_ops);
/* Setup mailbox with entry point. */
- arm_program_trusted_mailbox(sec_entrypoint);
+ plat_arm_program_trusted_mailbox(sec_entrypoint);
return 0;
}
diff --git a/plat/arm/css/common/css_common.mk b/plat/arm/css/common/css_common.mk
index 72d5527..29dd01d 100644
--- a/plat/arm/css/common/css_common.mk
+++ b/plat/arm/css/common/css_common.mk
@@ -32,6 +32,7 @@
plat/arm/css/drivers/scpi/css_scpi.c
else
BL31_SOURCES += plat/arm/css/drivers/scp/css_pm_scmi.c \
+ plat/arm/css/drivers/scmi/scmi_ap_core_proto.c \
plat/arm/css/drivers/scmi/scmi_common.c \
plat/arm/css/drivers/scmi/scmi_pwr_dmn_proto.c \
plat/arm/css/drivers/scmi/scmi_sys_pwr_proto.c \
diff --git a/plat/arm/css/drivers/scmi/scmi.h b/plat/arm/css/drivers/scmi/scmi.h
index cf9ef5e..723fd06 100644
--- a/plat/arm/css/drivers/scmi/scmi.h
+++ b/plat/arm/css/drivers/scmi/scmi.h
@@ -12,6 +12,7 @@
#include <stdint.h>
/* Supported SCMI Protocol Versions */
+#define SCMI_AP_CORE_PROTO_VER MAKE_SCMI_VERSION(1, 0)
#define SCMI_PWR_DMN_PROTO_VER MAKE_SCMI_VERSION(1, 0)
#define SCMI_SYS_PWR_PROTO_VER MAKE_SCMI_VERSION(1, 0)
@@ -29,6 +30,8 @@
/* SCMI Protocol identifiers */
#define SCMI_PWR_DMN_PROTO_ID 0x11
#define SCMI_SYS_PWR_PROTO_ID 0x12
+/* The AP core protocol is a CSS platform-specific extension */
+#define SCMI_AP_CORE_PROTO_ID 0x90
/* Mandatory messages IDs for all SCMI protocols */
#define SCMI_PROTO_VERSION_MSG 0x0
@@ -43,6 +46,10 @@
#define SCMI_SYS_PWR_STATE_SET_MSG 0x3
#define SCMI_SYS_PWR_STATE_GET_MSG 0x4
+/* SCMI AP core protocol message IDs */
+#define SCMI_AP_CORE_RESET_ADDR_SET_MSG 0x3
+#define SCMI_AP_CORE_RESET_ADDR_GET_MSG 0x4
+
/* Helper macros for system power management protocol commands */
/*
@@ -73,6 +80,13 @@
#define SCMI_SYS_PWR_POWER_UP 0x3
#define SCMI_SYS_PWR_SUSPEND 0x4
+/*
+ * Macros to describe the bit-fields of the `attribute` of AP core protocol
+ * AP_CORE_RESET_ADDR set/get messages.
+ */
+#define SCMI_AP_CORE_LOCK_ATTR_SHIFT 0x0
+#define SCMI_AP_CORE_LOCK_ATTR (1U << SCMI_AP_CORE_LOCK_ATTR_SHIFT)
+
/* SCMI Error code definitions */
#define SCMI_E_QUEUED 1
#define SCMI_E_SUCCESS 0
@@ -133,4 +147,8 @@
int scmi_sys_pwr_state_set(void *p, uint32_t flags, uint32_t system_state);
int scmi_sys_pwr_state_get(void *p, uint32_t *system_state);
+/* SCMI AP core configuration protocol commands. */
+int scmi_ap_core_set_reset_addr(void *p, uint64_t reset_addr, uint32_t attr);
+int scmi_ap_core_get_reset_addr(void *p, uint64_t *reset_addr, uint32_t *attr);
+
#endif /* __CSS_SCMI_H__ */
diff --git a/plat/arm/css/drivers/scmi/scmi_ap_core_proto.c b/plat/arm/css/drivers/scmi/scmi_ap_core_proto.c
new file mode 100644
index 0000000..1438cba
--- /dev/null
+++ b/plat/arm/css/drivers/scmi/scmi_ap_core_proto.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <assert.h>
+#include <debug.h>
+#include "scmi.h"
+#include "scmi_private.h"
+
+/*
+ * API to set the SCMI AP core reset address and attributes
+ */
+int scmi_ap_core_set_reset_addr(void *p, uint64_t reset_addr, uint32_t attr)
+{
+ mailbox_mem_t *mbx_mem;
+ int token = 0, ret;
+ scmi_channel_t *ch = (scmi_channel_t *)p;
+
+ validate_scmi_channel(ch);
+
+ scmi_get_channel(ch);
+
+ mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
+ mbx_mem->msg_header = SCMI_MSG_CREATE(SCMI_AP_CORE_PROTO_ID,
+ SCMI_AP_CORE_RESET_ADDR_SET_MSG, token);
+ mbx_mem->len = SCMI_AP_CORE_RESET_ADDR_SET_MSG_LEN;
+ mbx_mem->flags = SCMI_FLAG_RESP_POLL;
+ SCMI_PAYLOAD_ARG3(mbx_mem->payload, reset_addr & 0xffffffff,
+ reset_addr >> 32, attr);
+
+ scmi_send_sync_command(ch);
+
+ /* Get the return values */
+ SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
+ assert(mbx_mem->len == SCMI_AP_CORE_RESET_ADDR_SET_RESP_LEN);
+ assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));
+
+ scmi_put_channel(ch);
+
+ return ret;
+}
+
+/*
+ * API to get the SCMI AP core reset address and attributes
+ */
+int scmi_ap_core_get_reset_addr(void *p, uint64_t *reset_addr, uint32_t *attr)
+{
+ mailbox_mem_t *mbx_mem;
+ int token = 0, ret;
+ scmi_channel_t *ch = (scmi_channel_t *)p;
+ uint32_t lo_addr, hi_addr;
+
+ validate_scmi_channel(ch);
+
+ scmi_get_channel(ch);
+
+ mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
+ mbx_mem->msg_header = SCMI_MSG_CREATE(SCMI_AP_CORE_PROTO_ID,
+ SCMI_AP_CORE_RESET_ADDR_GET_MSG, token);
+ mbx_mem->len = SCMI_AP_CORE_RESET_ADDR_GET_MSG_LEN;
+ mbx_mem->flags = SCMI_FLAG_RESP_POLL;
+
+ scmi_send_sync_command(ch);
+
+ /* Get the return values */
+ SCMI_PAYLOAD_RET_VAL4(mbx_mem->payload, ret, lo_addr, hi_addr, *attr);
+ *reset_addr = lo_addr | (uint64_t)hi_addr << 32;
+ assert(mbx_mem->len == SCMI_AP_CORE_RESET_ADDR_GET_RESP_LEN);
+ assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));
+
+ scmi_put_channel(ch);
+
+ return ret;
+}
diff --git a/plat/arm/css/drivers/scmi/scmi_private.h b/plat/arm/css/drivers/scmi/scmi_private.h
index 67fe748..39bc8cc 100644
--- a/plat/arm/css/drivers/scmi/scmi_private.h
+++ b/plat/arm/css/drivers/scmi/scmi_private.h
@@ -18,6 +18,12 @@
#define SCMI_PROTO_MSG_ATTR_MSG_LEN 8
#define SCMI_PROTO_MSG_ATTR_RESP_LEN 12
+#define SCMI_AP_CORE_RESET_ADDR_SET_MSG_LEN 16
+#define SCMI_AP_CORE_RESET_ADDR_SET_RESP_LEN 8
+
+#define SCMI_AP_CORE_RESET_ADDR_GET_MSG_LEN 4
+#define SCMI_AP_CORE_RESET_ADDR_GET_RESP_LEN 20
+
#define SCMI_PWR_STATE_SET_MSG_LEN 16
#define SCMI_PWR_STATE_SET_RESP_LEN 8
@@ -113,6 +119,11 @@
(val3) = mmio_read_32((uintptr_t)&payld_arr[2]); \
} while (0)
+#define SCMI_PAYLOAD_RET_VAL4(payld_arr, val1, val2, val3, val4) do { \
+ SCMI_PAYLOAD_RET_VAL3(payld_arr, val1, val2, val3); \
+ (val4) = mmio_read_32((uintptr_t)&payld_arr[3]); \
+ } while (0)
+
/*
* Private data structure for representing the mailbox memory layout. Refer
* the SCMI specification for more details.
diff --git a/plat/arm/css/drivers/scp/css_pm_scmi.c b/plat/arm/css/drivers/scp/css_pm_scmi.c
index 715bf98..7032267 100644
--- a/plat/arm/css/drivers/scp/css_pm_scmi.c
+++ b/plat/arm/css/drivers/scp/css_pm_scmi.c
@@ -306,6 +306,28 @@
.ring_doorbell = &mhu_ring_doorbell,
};
+static int scmi_ap_core_init(scmi_channel_t *ch)
+{
+#if PROGRAMMABLE_RESET_ADDRESS
+ uint32_t version;
+ int ret;
+
+ ret = scmi_proto_version(ch, SCMI_AP_CORE_PROTO_ID, &version);
+ if (ret != SCMI_E_SUCCESS) {
+ WARN("SCMI AP core protocol version message failed\n");
+ return -1;
+ }
+
+ if (!is_scmi_version_compatible(SCMI_AP_CORE_PROTO_VER, version)) {
+ WARN("SCMI AP core protocol version 0x%x incompatible with driver version 0x%x\n",
+ version, SCMI_AP_CORE_PROTO_VER);
+ return -1;
+ }
+ INFO("SCMI AP core protocol version 0x%x detected\n", version);
+#endif
+ return 0;
+}
+
void plat_arm_pwrc_setup(void)
{
channel.info = &plat_css_scmi_plat_info;
@@ -315,6 +337,10 @@
ERROR("SCMI Initialization failed\n");
panic();
}
+ if (scmi_ap_core_init(&channel) < 0) {
+ ERROR("SCMI AP core protocol initialization failed\n");
+ panic();
+ }
}
/******************************************************************************
@@ -386,3 +412,18 @@
*/
return 0;
}
+
+#if PROGRAMMABLE_RESET_ADDRESS
+void plat_arm_program_trusted_mailbox(uintptr_t address)
+{
+ int ret;
+
+ assert(scmi_handle);
+ ret = scmi_ap_core_set_reset_addr(scmi_handle, address,
+ SCMI_AP_CORE_LOCK_ATTR);
+ if (ret != SCMI_E_SUCCESS) {
+ ERROR("CSS: Failed to program reset address: %d\n", ret);
+ panic();
+ }
+}
+#endif
diff --git a/plat/rpi3/platform.mk b/plat/rpi3/platform.mk
index df19705..5990f27 100644
--- a/plat/rpi3/platform.mk
+++ b/plat/rpi3/platform.mk
@@ -20,7 +20,8 @@
plat/common/aarch64/platform_mp_stack.S \
plat/rpi3/aarch64/plat_helpers.S \
plat/rpi3/rpi3_bl1_setup.c \
- plat/rpi3/rpi3_io_storage.c
+ plat/rpi3/rpi3_io_storage.c \
+ plat/rpi3/rpi3_mbox.c
BL2_SOURCES += common/desc_image_load.c \
drivers/io/io_fip.c \
@@ -54,6 +55,26 @@
TF_CFLAGS_aarch64 += -mtune=cortex-a53
endif
+# Platform Makefile target
+# ------------------------
+
+RPI3_BL1_PAD_BIN := ${BUILD_PLAT}/bl1_pad.bin
+RPI3_ARMSTUB8_BIN := ${BUILD_PLAT}/armstub8.bin
+
+# Add new default target when compiling this platform
+all: armstub
+
+# This target concatenates BL1 and the FIP so that the base addresses match the
+# ones defined in the memory map
+armstub: bl1 fip
+ @echo " CAT $@"
+ ${Q}cp ${BUILD_PLAT}/bl1.bin ${RPI3_BL1_PAD_BIN}
+ ${Q}truncate --size=131072 ${RPI3_BL1_PAD_BIN}
+ ${Q}cat ${RPI3_BL1_PAD_BIN} ${BUILD_PLAT}/fip.bin > ${RPI3_ARMSTUB8_BIN}
+ @${ECHO_BLANK_LINE}
+ @echo "Built $@ successfully"
+ @${ECHO_BLANK_LINE}
+
# Build config flags
# ------------------
diff --git a/plat/rpi3/rpi3_bl1_setup.c b/plat/rpi3/rpi3_bl1_setup.c
index c98715b..39bb332 100644
--- a/plat/rpi3/rpi3_bl1_setup.c
+++ b/plat/rpi3/rpi3_bl1_setup.c
@@ -7,6 +7,7 @@
#include <arch.h>
#include <arch_helpers.h>
#include <bl_common.h>
+#include <debug.h>
#include <platform_def.h>
#include <xlat_mmu_helpers.h>
#include <xlat_tables_defs.h>
@@ -56,6 +57,39 @@
void bl1_platform_setup(void)
{
+ uint32_t __unused rev;
+ int __unused rc;
+
+ rc = rpi3_vc_hardware_get_board_revision(&rev);
+
+ if (rc == 0) {
+ const char __unused *model, __unused *info;
+
+ switch (rev) {
+ case 0xA02082:
+ model = "Raspberry Pi 3 Model B";
+ info = "(1GB, Sony, UK)";
+ break;
+ case 0xA22082:
+ model = "Raspberry Pi 3 Model B";
+ info = "(1GB, Embest, China)";
+ break;
+ case 0xA020D3:
+ model = "Raspberry Pi 3 Model B+";
+ info = "(1GB, Sony, UK)";
+ break;
+ default:
+ model = "Unknown";
+ info = "(Unknown)";
+ ERROR("rpi3: Unknown board revision 0x%08x\n", rev);
+ break;
+ }
+
+ NOTICE("rpi3: Detected: %s %s [0x%08x]\n", model, info, rev);
+ } else {
+ ERROR("rpi3: Unable to detect board revision\n");
+ }
+
/* Initialise the IO layer and register platform IO devices */
plat_rpi3_io_setup();
}
diff --git a/plat/rpi3/rpi3_hw.h b/plat/rpi3/rpi3_hw.h
index 70272e0..a83a0ad 100644
--- a/plat/rpi3/rpi3_hw.h
+++ b/plat/rpi3/rpi3_hw.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -17,11 +17,25 @@
#define RPI3_IO_SIZE ULL(0x01000000)
/*
- * Serial port (called 'Mini UART' in the BCM docucmentation).
+ * ARM <-> VideoCore mailboxes
*/
-#define RPI3_IO_MINI_UART_OFFSET ULL(0x00215040)
-#define RPI3_MINI_UART_BASE (RPI3_IO_BASE + RPI3_IO_MINI_UART_OFFSET)
-#define RPI3_MINI_UART_CLK_IN_HZ ULL(500000000)
+#define RPI3_MBOX_OFFSET ULL(0x0000B880)
+#define RPI3_MBOX_BASE (RPI3_IO_BASE + RPI3_MBOX_OFFSET)
+/* VideoCore -> ARM */
+#define RPI3_MBOX0_READ_OFFSET ULL(0x00000000)
+#define RPI3_MBOX0_PEEK_OFFSET ULL(0x00000010)
+#define RPI3_MBOX0_SENDER_OFFSET ULL(0x00000014)
+#define RPI3_MBOX0_STATUS_OFFSET ULL(0x00000018)
+#define RPI3_MBOX0_CONFIG_OFFSET ULL(0x0000001C)
+/* ARM -> VideoCore */
+#define RPI3_MBOX1_WRITE_OFFSET ULL(0x00000020)
+#define RPI3_MBOX1_PEEK_OFFSET ULL(0x00000030)
+#define RPI3_MBOX1_SENDER_OFFSET ULL(0x00000034)
+#define RPI3_MBOX1_STATUS_OFFSET ULL(0x00000038)
+#define RPI3_MBOX1_CONFIG_OFFSET ULL(0x0000003C)
+/* Mailbox status constants */
+#define RPI3_MBOX_STATUS_FULL_MASK U(0x80000000) /* Set if full */
+#define RPI3_MBOX_STATUS_EMPTY_MASK U(0x40000000) /* Set if empty */
/*
* Power management, reset controller, watchdog.
@@ -30,11 +44,26 @@
#define RPI3_PM_BASE (RPI3_IO_BASE + RPI3_IO_PM_OFFSET)
/* Registers on top of RPI3_PM_BASE. */
#define RPI3_PM_RSTC_OFFSET ULL(0x0000001C)
+#define RPI3_PM_RSTS_OFFSET ULL(0x00000020)
#define RPI3_PM_WDOG_OFFSET ULL(0x00000024)
/* Watchdog constants */
-#define RPI3_PM_PASSWORD ULL(0x5A000000)
-#define RPI3_PM_RSTC_WRCFG_MASK ULL(0x00000030)
-#define RPI3_PM_RSTC_WRCFG_FULL_RESET ULL(0x00000020)
+#define RPI3_PM_PASSWORD U(0x5A000000)
+#define RPI3_PM_RSTC_WRCFG_MASK U(0x00000030)
+#define RPI3_PM_RSTC_WRCFG_FULL_RESET U(0x00000020)
+/*
+ * The RSTS register is used by the VideoCore firmware when booting the
+ * Raspberry Pi to know which partition to boot from. The partition value is
+ * formed by bits 0, 2, 4, 6, 8 and 10. Partition 63 is used by said firmware
+ * to indicate halt.
+ */
+#define RPI3_PM_RSTS_WRCFG_HALT U(0x00000555)
+
+/*
+ * Serial port (called 'Mini UART' in the BCM docucmentation).
+ */
+#define RPI3_IO_MINI_UART_OFFSET ULL(0x00215040)
+#define RPI3_MINI_UART_BASE (RPI3_IO_BASE + RPI3_IO_MINI_UART_OFFSET)
+#define RPI3_MINI_UART_CLK_IN_HZ ULL(500000000)
/*
* Local interrupt controller
diff --git a/plat/rpi3/rpi3_mbox.c b/plat/rpi3/rpi3_mbox.c
new file mode 100644
index 0000000..77e17af
--- /dev/null
+++ b/plat/rpi3/rpi3_mbox.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <arch_helpers.h>
+#include <debug.h>
+#include <mmio.h>
+#include <platform_def.h>
+
+#include "rpi3_hw.h"
+
+/* This struct must be aligned to 16 bytes */
+typedef struct __packed __aligned(16) rpi3_mbox_request {
+ uint32_t size; /* Buffer size in bytes */
+ uint32_t code; /* Request/response code */
+ uint32_t tags[0];
+} rpi3_mbox_request_t;
+
+#define RPI3_MBOX_BUFFER_SIZE U(256)
+static uint8_t __aligned(16) rpi3_mbox_buffer[RPI3_MBOX_BUFFER_SIZE];
+
+/* Constants to perform a request/check the status of a request. */
+#define RPI3_MBOX_PROCESS_REQUEST U(0x00000000)
+#define RPI3_MBOX_REQUEST_SUCCESSFUL U(0x80000000)
+#define RPI3_MBOX_REQUEST_ERROR U(0x80000001)
+
+/* Command constants */
+#define RPI3_TAG_HARDWARE_GET_BOARD_REVISION U(0x00010002)
+#define RPI3_TAG_END U(0x00000000)
+
+#define RPI3_TAG_REQUEST U(0x00000000)
+#define RPI3_TAG_IS_RESPONSE U(0x80000000) /* Set if response */
+#define RPI3_TAG_RESPONSE_LENGTH_MASK U(0x7FFFFFFF)
+
+#define RPI3_CHANNEL_ARM_TO_VC U(0x8)
+#define RPI3_CHANNEL_MASK U(0xF)
+
+#define RPI3_MAILBOX_MAX_RETRIES U(1000000)
+
+/*******************************************************************************
+ * Helpers to send requests to the VideoCore using the mailboxes.
+ ******************************************************************************/
+static void rpi3_vc_mailbox_request_send(void)
+{
+ uint32_t st, data;
+ uintptr_t resp_addr, addr;
+ unsigned int retries;
+
+ /* This is the location of the request buffer */
+ addr = (uintptr_t) &rpi3_mbox_buffer;
+
+ /* Make sure that the changes are seen by the VideoCore */
+ flush_dcache_range(addr, RPI3_MBOX_BUFFER_SIZE);
+
+ /* Wait until the outbound mailbox is empty */
+ retries = 0U;
+
+ do {
+ st = mmio_read_32(RPI3_MBOX_BASE + RPI3_MBOX1_STATUS_OFFSET);
+
+ retries++;
+ if (retries == RPI3_MAILBOX_MAX_RETRIES) {
+ ERROR("rpi3: mbox: Send request timeout\n");
+ return;
+ }
+
+ } while ((st & RPI3_MBOX_STATUS_EMPTY_MASK) == 0U);
+
+ /* Send base address of this message to start request */
+ mmio_write_32(RPI3_MBOX_BASE + RPI3_MBOX1_WRITE_OFFSET,
+ RPI3_CHANNEL_ARM_TO_VC | (uint32_t) addr);
+
+ /* Wait until the inbound mailbox isn't empty */
+ retries = 0U;
+
+ do {
+ st = mmio_read_32(RPI3_MBOX_BASE + RPI3_MBOX0_STATUS_OFFSET);
+
+ retries++;
+ if (retries == RPI3_MAILBOX_MAX_RETRIES) {
+ ERROR("rpi3: mbox: Receive response timeout\n");
+ return;
+ }
+
+ } while ((st & RPI3_MBOX_STATUS_EMPTY_MASK) != 0U);
+
+ /* Get location and channel */
+ data = mmio_read_32(RPI3_MBOX_BASE + RPI3_MBOX0_READ_OFFSET);
+
+ if ((data & RPI3_CHANNEL_MASK) != RPI3_CHANNEL_ARM_TO_VC) {
+ ERROR("rpi3: mbox: Wrong channel: 0x%08x\n", data);
+ panic();
+ }
+
+ resp_addr = (uintptr_t)(data & ~RPI3_CHANNEL_MASK);
+ if (addr != resp_addr) {
+ ERROR("rpi3: mbox: Unexpected address: 0x%08x\n", data);
+ panic();
+ }
+
+ /* Make sure that the data seen by the CPU is up to date */
+ inv_dcache_range(addr, RPI3_MBOX_BUFFER_SIZE);
+}
+
+/*******************************************************************************
+ * Request board revision. Returns the revision and 0 on success, -1 on error.
+ ******************************************************************************/
+int rpi3_vc_hardware_get_board_revision(uint32_t *revision)
+{
+ uint32_t tag_request_size = sizeof(uint32_t);
+ rpi3_mbox_request_t *req = (rpi3_mbox_request_t *) rpi3_mbox_buffer;
+
+ assert(revision != NULL);
+
+ VERBOSE("rpi3: mbox: Sending request at %p\n", (void *)req);
+
+ req->size = sizeof(rpi3_mbox_buffer);
+ req->code = RPI3_MBOX_PROCESS_REQUEST;
+
+ req->tags[0] = RPI3_TAG_HARDWARE_GET_BOARD_REVISION;
+ req->tags[1] = tag_request_size; /* Space available for the response */
+ req->tags[2] = RPI3_TAG_REQUEST;
+ req->tags[3] = 0; /* Placeholder for the response */
+
+ req->tags[4] = RPI3_TAG_END;
+
+ rpi3_vc_mailbox_request_send();
+
+ if (req->code != RPI3_MBOX_REQUEST_SUCCESSFUL) {
+ ERROR("rpi3: mbox: Code = 0x%08x\n", req->code);
+ return -1;
+ }
+
+ if (req->tags[2] != (RPI3_TAG_IS_RESPONSE | tag_request_size)) {
+ ERROR("rpi3: mbox: get board revision failed (0x%08x)\n",
+ req->tags[2]);
+ return -1;
+ }
+
+ *revision = req->tags[3];
+
+ return 0;
+}
diff --git a/plat/rpi3/rpi3_pm.c b/plat/rpi3/rpi3_pm.c
index 1d067fb..9694858 100644
--- a/plat/rpi3/rpi3_pm.c
+++ b/plat/rpi3/rpi3_pm.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -150,41 +150,61 @@
}
/*******************************************************************************
- * Platform handler to reboot the system
+ * Platform handlers for system reset and system off.
******************************************************************************/
-#define RESET_TIMEOUT 10
-static void __dead2 rpi3_system_reset(void)
-{
- /* Setup watchdog for reset */
+/* 10 ticks (Watchdog timer = Timer clock / 16) */
+#define RESET_TIMEOUT U(10)
- static const uintptr_t base = RPI3_PM_BASE;
+static void __dead2 rpi3_watchdog_reset(void)
+{
uint32_t rstc;
- INFO("rpi3: PSCI System Reset: invoking watchdog reset\n");
-
console_flush();
- rstc = mmio_read_32(base + RPI3_PM_RSTC_OFFSET);
- rstc &= ~RPI3_PM_RSTC_WRCFG_MASK;
- rstc |= RPI3_PM_RSTC_WRCFG_FULL_RESET;
-
- dmbst();
+ dsbsy();
+ isb();
- /*
- * Watchdog timer = Timer clock / 16
- * Password (31:16) | Value (11:0)
- */
- mmio_write_32(base + RPI3_PM_WDOG_OFFSET,
+ mmio_write_32(RPI3_PM_BASE + RPI3_PM_WDOG_OFFSET,
RPI3_PM_PASSWORD | RESET_TIMEOUT);
- mmio_write_32(base + RPI3_PM_RSTC_OFFSET,
- RPI3_PM_PASSWORD | rstc);
+
+ rstc = mmio_read_32(RPI3_PM_BASE + RPI3_PM_RSTC_OFFSET);
+ rstc &= ~RPI3_PM_RSTC_WRCFG_MASK;
+ rstc |= RPI3_PM_PASSWORD | RPI3_PM_RSTC_WRCFG_FULL_RESET;
+ mmio_write_32(RPI3_PM_BASE + RPI3_PM_RSTC_OFFSET, rstc);
for (;;) {
wfi();
}
}
+static void __dead2 rpi3_system_reset(void)
+{
+ INFO("rpi3: PSCI_SYSTEM_RESET: Invoking watchdog reset\n");
+
+ rpi3_watchdog_reset();
+}
+
+static void __dead2 rpi3_system_off(void)
+{
+ uint32_t rsts;
+
+ INFO("rpi3: PSCI_SYSTEM_OFF: Invoking watchdog reset\n");
+
+ /*
+ * This function doesn't actually make the Raspberry Pi turn itself off,
+ * the hardware doesn't allow it. It simply reboots it and the RSTS
+ * value tells the bootcode.bin firmware not to continue the regular
+ * bootflow and to stay in a low power mode.
+ */
+
+ rsts = mmio_read_32(RPI3_PM_BASE + RPI3_PM_RSTS_OFFSET);
+ rsts |= RPI3_PM_PASSWORD | RPI3_PM_RSTS_WRCFG_HALT;
+ mmio_write_32(RPI3_PM_BASE + RPI3_PM_RSTS_OFFSET, rsts);
+
+ rpi3_watchdog_reset();
+}
+
/*******************************************************************************
* Platform handlers and setup function.
******************************************************************************/
@@ -192,6 +212,7 @@
.cpu_standby = rpi3_cpu_standby,
.pwr_domain_on = rpi3_pwr_domain_on,
.pwr_domain_on_finish = rpi3_pwr_domain_on_finish,
+ .system_off = rpi3_system_off,
.system_reset = rpi3_system_reset,
.validate_power_state = rpi3_validate_power_state,
};
diff --git a/plat/rpi3/rpi3_private.h b/plat/rpi3/rpi3_private.h
index a9fbfe4..9d1744e 100644
--- a/plat/rpi3/rpi3_private.h
+++ b/plat/rpi3/rpi3_private.h
@@ -33,4 +33,7 @@
/* IO storage utility functions */
void plat_rpi3_io_setup(void);
+/* VideoCore firmware commands */
+int rpi3_vc_hardware_get_board_revision(uint32_t *revision);
+
#endif /*__RPI3_PRIVATE_H__ */