[U-Boot] [PATCH 1/2] ARM: uniphier: support eMMC boot for PH1-LD11 and PH1-LD20
Masahiro Yamada
yamada.masahiro at socionext.com
Sat Jun 4 15:39:08 CEST 2016
The Boot ROM on PH1-LD11/LD20 exports built-in APIs to load images
from an eMMC device. They are useful to reduce the memory footprint
of SPL, rather than compiling the whole MMC framework.
Signed-off-by: Masahiro Yamada <yamada.masahiro at socionext.com>
---
arch/arm/mach-uniphier/boot-mode/Makefile | 4 +
arch/arm/mach-uniphier/boot-mode/boot-mode.c | 25 +++++-
arch/arm/mach-uniphier/boot-mode/spl_board.c | 128 +++++++++++++++++++++++++++
include/configs/uniphier.h | 4 +-
4 files changed, 157 insertions(+), 4 deletions(-)
create mode 100644 arch/arm/mach-uniphier/boot-mode/spl_board.c
diff --git a/arch/arm/mach-uniphier/boot-mode/Makefile b/arch/arm/mach-uniphier/boot-mode/Makefile
index d7fefc5..a898021 100644
--- a/arch/arm/mach-uniphier/boot-mode/Makefile
+++ b/arch/arm/mach-uniphier/boot-mode/Makefile
@@ -14,4 +14,8 @@ obj-$(CONFIG_ARCH_UNIPHIER_LD6B) += boot-mode-pxs2.o
obj-$(CONFIG_ARCH_UNIPHIER_LD11) += boot-mode-ld20.o
obj-$(CONFIG_ARCH_UNIPHIER_LD20) += boot-mode-ld20.o
+ifdef CONFIG_SPL_BUILD
+obj-$(CONFIG_SPL_BOARD_LOAD_IMAGE) += spl_board.o
+else
obj-$(CONFIG_CMD_PINMON) += cmd_pinmon.o
+endif
diff --git a/arch/arm/mach-uniphier/boot-mode/boot-mode.c b/arch/arm/mach-uniphier/boot-mode/boot-mode.c
index 4b744da..d34b9af 100644
--- a/arch/arm/mach-uniphier/boot-mode/boot-mode.c
+++ b/arch/arm/mach-uniphier/boot-mode/boot-mode.c
@@ -51,11 +51,30 @@ u32 spl_boot_device_raw(void)
u32 spl_boot_device(void)
{
- u32 ret;
+ u32 mode;
- ret = spl_boot_device_raw();
+ mode = spl_boot_device_raw();
- return ret == BOOT_DEVICE_USB ? BOOT_DEVICE_NOR : ret;
+ switch (uniphier_get_soc_type()) {
+#if defined(CONFIG_ARCH_UNIPHIER_PXS2) || defined(CONFIG_ARCH_UNIPHIER_LD6B)
+ case SOC_UNIPHIER_PXS2:
+ case SOC_UNIPHIER_LD6B:
+ if (mode == BOOT_DEVICE_USB)
+ mode = BOOT_DEVICE_NOR;
+ break;
+#endif
+#if defined(CONFIG_ARCH_UNIPHIER_LD11) || defined(CONFIG_ARCH_UNIPHIER_LD20)
+ case SOC_UNIPHIER_LD11:
+ case SOC_UNIPHIER_LD20:
+ if (mode == BOOT_DEVICE_MMC1 || mode == BOOT_DEVICE_USB)
+ mode = BOOT_DEVICE_BOARD;
+ break;
+#endif
+ default:
+ break;
+ }
+
+ return mode;
}
u32 spl_boot_mode(void)
diff --git a/arch/arm/mach-uniphier/boot-mode/spl_board.c b/arch/arm/mach-uniphier/boot-mode/spl_board.c
new file mode 100644
index 0000000..86292b6
--- /dev/null
+++ b/arch/arm/mach-uniphier/boot-mode/spl_board.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2016 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro at socionext.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <spl.h>
+#include <linux/io.h>
+#include <asm/processor.h>
+
+#include "../soc-info.h"
+
+void spl_board_announce_boot_device(void)
+{
+ printf("eMMC");
+}
+
+struct uniphier_romfunc_table {
+ void *mmc_send_cmd;
+ void *mmc_card_blockaddr;
+ void *mmc_switch_part;
+ void *mmc_load_image;
+};
+
+static const struct uniphier_romfunc_table uniphier_ld11_romfunc_table = {
+ .mmc_send_cmd = (void *)0x20d8,
+ .mmc_card_blockaddr = (void *)0x1b68,
+ .mmc_switch_part = (void *)0x1c38,
+ .mmc_load_image = (void *)0x2e48,
+};
+
+static const struct uniphier_romfunc_table uniphier_ld20_romfunc_table = {
+ .mmc_send_cmd = (void *)0x2130,
+ .mmc_card_blockaddr = (void *)0x1ba0,
+ .mmc_switch_part = (void *)0x1c70,
+ .mmc_load_image = (void *)0x2ef0,
+};
+
+int uniphier_rom_get_mmc_funcptr(int (**send_cmd)(u32, u32),
+ int (**card_blockaddr)(u32),
+ int (**switch_part)(int),
+ int (**load_image)(u32, uintptr_t, u32))
+{
+ const struct uniphier_romfunc_table *table;
+
+ switch (uniphier_get_soc_type()) {
+ case SOC_UNIPHIER_LD11:
+ table = &uniphier_ld11_romfunc_table;
+ break;
+ case SOC_UNIPHIER_LD20:
+ table = &uniphier_ld20_romfunc_table;
+ break;
+ default:
+ printf("unsupported SoC\n");
+ return -EINVAL;
+ }
+
+ *send_cmd = table->mmc_send_cmd;
+ *card_blockaddr = table->mmc_card_blockaddr;
+ *switch_part = table->mmc_switch_part;
+ *load_image = table->mmc_load_image;
+
+ return 0;
+}
+
+int spl_board_load_image(void)
+{
+ int (*send_cmd)(u32 cmd, u32 arg);
+ int (*card_blockaddr)(u32 rca);
+ int (*switch_part)(int part);
+ int (*load_image)(u32 dev_addr, uintptr_t load_addr, u32 block_cnt);
+ u32 dev_addr = CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR;
+ const u32 rca = 0x1000; /* RCA assigned by Boot ROM */
+ int ret;
+
+ ret = uniphier_rom_get_mmc_funcptr(&send_cmd, &card_blockaddr,
+ &switch_part, &load_image);
+ if (ret)
+ return ret;
+
+ /*
+ * deselect card before SEND_CSD command.
+ * Do not check the return code. It fails, but it is OK.
+ */
+ (*send_cmd)(0x071a0000, 0); /* CMD7 (arg=0) */
+
+ /* reset CMD Line */
+ writeb(0x6, 0x5a00022f);
+ while (readb(0x5a00022f))
+ cpu_relax();
+
+ ret = (*card_blockaddr)(rca);
+ if (ret) {
+ debug("card is block addressing\n");
+ } else {
+ debug("card is byte addressing\n");
+ dev_addr *= 512;
+ }
+
+ ret = (*send_cmd)(0x071a0000, rca << 16); /* CMD7: select card again */
+ if (ret)
+ printf("failed to select card\n");
+
+ ret = (*switch_part)(1); /* Switch to Boot Partition 1 */
+ if (ret)
+ printf("failed to switch partition\n");
+
+ ret = (*load_image)(dev_addr, CONFIG_SYS_TEXT_BASE, 1);
+ if (ret) {
+ printf("failed to load image\n");
+ return ret;
+ }
+
+ ret = spl_parse_image_header((void *)CONFIG_SYS_TEXT_BASE);
+ if (ret)
+ return ret;
+
+ ret = (*load_image)(dev_addr, spl_image.load_addr,
+ spl_image.size / 512);
+ if (ret) {
+ printf("failed to load image\n");
+ return ret;
+ }
+
+ return 0;
+}
diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h
index 10fd8c2..058ccd8 100644
--- a/include/configs/uniphier.h
+++ b/include/configs/uniphier.h
@@ -288,7 +288,9 @@
#define CONFIG_SPL_FRAMEWORK
#define CONFIG_SPL_SERIAL_SUPPORT
#define CONFIG_SPL_NOR_SUPPORT
-#ifndef CONFIG_ARM64
+#ifdef CONFIG_ARM64
+#define CONFIG_SPL_BOARD_LOAD_IMAGE
+#else
#define CONFIG_SPL_NAND_SUPPORT
#define CONFIG_SPL_MMC_SUPPORT
#endif
--
1.9.1
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