stm32mp1: update platform files to use MMC devices
Signed-off-by: Yann Gautier <yann.gautier@st.com>
diff --git a/plat/st/stm32mp1/bl2_io_storage.c b/plat/st/stm32mp1/bl2_io_storage.c
index 7346c0c..9a02312 100644
--- a/plat/st/stm32mp1/bl2_io_storage.c
+++ b/plat/st/stm32mp1/bl2_io_storage.c
@@ -8,12 +8,18 @@
#include <assert.h>
#include <boot_api.h>
#include <debug.h>
+#include <io_block.h>
#include <io_driver.h>
#include <io_dummy.h>
+#include <io_mmc.h>
+#include <io_stm32image.h>
#include <io_storage.h>
+#include <mmc.h>
#include <mmio.h>
+#include <partition.h>
#include <platform.h>
#include <platform_def.h>
+#include <stm32_sdmmc2.h>
#include <stm32mp1_private.h>
#include <stm32mp1_rcc.h>
#include <string.h>
@@ -24,6 +30,50 @@
static uintptr_t dummy_dev_handle;
static uintptr_t dummy_dev_spec;
+static uintptr_t image_dev_handle;
+
+static io_block_spec_t gpt_block_spec = {
+ .offset = 0,
+ .length = 34 * MMC_BLOCK_SIZE, /* Size of GPT table */
+};
+
+uint32_t block_buffer[MMC_BLOCK_SIZE] __aligned(MMC_BLOCK_SIZE);
+
+static const io_block_dev_spec_t mmc_block_dev_spec = {
+ /* It's used as temp buffer in block driver */
+ .buffer = {
+ .offset = (size_t)&block_buffer,
+ .length = MMC_BLOCK_SIZE,
+ },
+ .ops = {
+ .read = mmc_read_blocks,
+ .write = NULL,
+ },
+ .block_size = MMC_BLOCK_SIZE,
+};
+
+static uintptr_t storage_dev_handle;
+static const io_dev_connector_t *mmc_dev_con;
+
+#define IMG_IDX_BL33 0
+
+static const struct stm32image_part_info bl33_partition_spec = {
+ .name = BL33_IMAGE_NAME,
+ .binary_type = BL33_BINARY_TYPE,
+};
+
+static struct stm32image_device_info stm32image_dev_info_spec = {
+ .lba_size = MMC_BLOCK_SIZE,
+ .part_info[IMG_IDX_BL33] = {
+ .name = BL33_IMAGE_NAME,
+ .binary_type = BL33_BINARY_TYPE,
+ },
+};
+
+static io_block_spec_t stm32image_block_spec;
+
+static const io_dev_connector_t *stm32image_dev_con;
+
static const io_block_spec_t bl32_block_spec = {
.offset = BL32_BASE,
.length = STM32MP1_BL32_SIZE
@@ -35,6 +85,8 @@
};
static int open_dummy(const uintptr_t spec);
+static int open_image(const uintptr_t spec);
+static int open_storage(const uintptr_t spec);
struct plat_io_policy {
uintptr_t *dev_handle;
@@ -53,6 +105,21 @@
.image_spec = (uintptr_t)&bl32_block_spec,
.check = open_dummy
},
+ [BL33_IMAGE_ID] = {
+ .dev_handle = &image_dev_handle,
+ .image_spec = (uintptr_t)&bl33_partition_spec,
+ .check = open_image
+ },
+ [GPT_IMAGE_ID] = {
+ .dev_handle = &storage_dev_handle,
+ .image_spec = (uintptr_t)&gpt_block_spec,
+ .check = open_storage
+ },
+ [STM32_IMAGE_ID] = {
+ .dev_handle = &storage_dev_handle,
+ .image_spec = (uintptr_t)&stm32image_block_spec,
+ .check = open_storage
+ }
};
static int open_dummy(const uintptr_t spec)
@@ -60,6 +127,16 @@
return io_dev_init(dummy_dev_handle, 0);
}
+static int open_image(const uintptr_t spec)
+{
+ return io_dev_init(image_dev_handle, 0);
+}
+
+static int open_storage(const uintptr_t spec)
+{
+ return io_dev_init(storage_dev_handle, 0);
+}
+
static void print_boot_device(boot_api_context_t *boot_context)
{
switch (boot_context->boot_interface_selected) {
@@ -149,6 +226,9 @@
void stm32mp1_io_setup(void)
{
int io_result __unused;
+ struct stm32_sdmmc2_params params;
+ struct mmc_device_info device_info;
+ uintptr_t mmc_default_instance;
boot_api_context_t *boot_context =
(boot_api_context_t *)stm32mp1_get_boot_ctx_address();
@@ -168,6 +248,93 @@
io_result = io_dev_open(dummy_dev_con, dummy_dev_spec,
&dummy_dev_handle);
assert(io_result == 0);
+
+ switch (boot_context->boot_interface_selected) {
+ case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_SD:
+ case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_EMMC:
+ dmb();
+
+ memset(¶ms, 0, sizeof(struct stm32_sdmmc2_params));
+
+ if (boot_context->boot_interface_selected ==
+ BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_EMMC) {
+ device_info.mmc_dev_type = MMC_IS_EMMC;
+ mmc_default_instance = STM32MP1_SDMMC2_BASE;
+ } else {
+ device_info.mmc_dev_type = MMC_IS_SD;
+ mmc_default_instance = STM32MP1_SDMMC1_BASE;
+ }
+
+ switch (boot_context->boot_interface_instance) {
+ case 1:
+ params.reg_base = STM32MP1_SDMMC1_BASE;
+ break;
+ case 2:
+ params.reg_base = STM32MP1_SDMMC2_BASE;
+ break;
+ case 3:
+ params.reg_base = STM32MP1_SDMMC3_BASE;
+ break;
+ default:
+ WARN("SDMMC instance not found, using default\n");
+ params.reg_base = mmc_default_instance;
+ break;
+ }
+
+ params.device_info = &device_info;
+ stm32_sdmmc2_mmc_init(¶ms);
+
+ /* Open MMC as a block device to read GPT table */
+ io_result = register_io_dev_block(&mmc_dev_con);
+ if (io_result != 0) {
+ panic();
+ }
+
+ io_result = io_dev_open(mmc_dev_con,
+ (uintptr_t)&mmc_block_dev_spec,
+ &storage_dev_handle);
+ assert(io_result == 0);
+
+ partition_init(GPT_IMAGE_ID);
+
+ io_result = io_dev_close(storage_dev_handle);
+ assert(io_result == 0);
+
+ stm32image_dev_info_spec.device_size =
+ stm32_sdmmc2_mmc_get_device_size();
+ stm32image_dev_info_spec.part_info[IMG_IDX_BL33].part_offset =
+ get_partition_entry(BL33_IMAGE_NAME)->start;
+ stm32image_dev_info_spec.part_info[IMG_IDX_BL33].bkp_offset =
+ get_partition_entry(BL33_IMAGE_NAME)->length;
+
+ stm32image_block_spec.offset = 0;
+ stm32image_block_spec.length =
+ get_partition_entry(BL33_IMAGE_NAME)->length;
+
+ /*
+ * Re-open MMC with io_mmc, for better perfs compared to
+ * io_block.
+ */
+ io_result = register_io_dev_mmc(&mmc_dev_con);
+ assert(io_result == 0);
+
+ io_result = io_dev_open(mmc_dev_con, 0, &storage_dev_handle);
+ assert(io_result == 0);
+
+ io_result = register_io_dev_stm32image(&stm32image_dev_con);
+ assert(io_result == 0);
+
+ io_result = io_dev_open(stm32image_dev_con,
+ (uintptr_t)&stm32image_dev_info_spec,
+ &image_dev_handle);
+ assert(io_result == 0);
+ break;
+
+ default:
+ ERROR("Boot interface %d not supported\n",
+ boot_context->boot_interface_selected);
+ break;
+ }
}
/*