mirror of
https://github.com/AsahiLinux/u-boot
synced 2025-03-03 06:47:17 +00:00
e27d6c7d32
Currently, uniphier_get_soc_type() converts the SoC ID (this is read from the revision register) to an enum symbol to use it for SoC identification. Come to think of it, there is no need for the conversion in the first place. Using the SoC ID from the register as-is a straightforward way. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
125 lines
3 KiB
C
125 lines
3 KiB
C
/*
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* Copyright (C) 2016 Socionext Inc.
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* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <spl.h>
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#include <linux/io.h>
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#include <asm/processor.h>
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#include "../soc-info.h"
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struct uniphier_romfunc_table {
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void *mmc_send_cmd;
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void *mmc_card_blockaddr;
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void *mmc_switch_part;
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void *mmc_load_image;
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};
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static const struct uniphier_romfunc_table uniphier_ld11_romfunc_table = {
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.mmc_send_cmd = (void *)0x20d8,
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.mmc_card_blockaddr = (void *)0x1b68,
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.mmc_switch_part = (void *)0x1c38,
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.mmc_load_image = (void *)0x2e48,
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};
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static const struct uniphier_romfunc_table uniphier_ld20_romfunc_table = {
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.mmc_send_cmd = (void *)0x2130,
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.mmc_card_blockaddr = (void *)0x1ba0,
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.mmc_switch_part = (void *)0x1c70,
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.mmc_load_image = (void *)0x2ef0,
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};
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int uniphier_rom_get_mmc_funcptr(int (**send_cmd)(u32, u32),
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int (**card_blockaddr)(u32),
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int (**switch_part)(int),
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int (**load_image)(u32, uintptr_t, u32))
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{
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const struct uniphier_romfunc_table *table;
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switch (uniphier_get_soc_id()) {
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case UNIPHIER_LD11_ID:
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table = &uniphier_ld11_romfunc_table;
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break;
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case UNIPHIER_LD20_ID:
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table = &uniphier_ld20_romfunc_table;
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break;
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default:
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printf("unsupported SoC\n");
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return -EINVAL;
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}
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*send_cmd = table->mmc_send_cmd;
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*card_blockaddr = table->mmc_card_blockaddr;
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*switch_part = table->mmc_switch_part;
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*load_image = table->mmc_load_image;
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return 0;
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}
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static int spl_board_load_image(struct spl_image_info *spl_image,
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struct spl_boot_device *bootdev)
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{
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int (*send_cmd)(u32 cmd, u32 arg);
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int (*card_blockaddr)(u32 rca);
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int (*switch_part)(int part);
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int (*load_image)(u32 dev_addr, uintptr_t load_addr, u32 block_cnt);
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u32 dev_addr = CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR;
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const u32 rca = 0x1000; /* RCA assigned by Boot ROM */
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int ret;
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ret = uniphier_rom_get_mmc_funcptr(&send_cmd, &card_blockaddr,
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&switch_part, &load_image);
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if (ret)
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return ret;
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/*
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* deselect card before SEND_CSD command.
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* Do not check the return code. It fails, but it is OK.
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*/
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(*send_cmd)(0x071a0000, 0); /* CMD7 (arg=0) */
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/* reset CMD Line */
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writeb(0x6, 0x5a00022f);
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while (readb(0x5a00022f))
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cpu_relax();
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ret = (*card_blockaddr)(rca);
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if (ret) {
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debug("card is block addressing\n");
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} else {
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debug("card is byte addressing\n");
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dev_addr *= 512;
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}
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ret = (*send_cmd)(0x071a0000, rca << 16); /* CMD7: select card again */
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if (ret)
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printf("failed to select card\n");
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ret = (*switch_part)(1); /* Switch to Boot Partition 1 */
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if (ret)
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printf("failed to switch partition\n");
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ret = (*load_image)(dev_addr, CONFIG_SYS_TEXT_BASE, 1);
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if (ret) {
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printf("failed to load image\n");
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return ret;
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}
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ret = spl_parse_image_header(spl_image, (void *)CONFIG_SYS_TEXT_BASE);
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if (ret)
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return ret;
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ret = (*load_image)(dev_addr, spl_image->load_addr,
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spl_image->size / 512);
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if (ret) {
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printf("failed to load image\n");
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return ret;
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}
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return 0;
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}
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SPL_LOAD_IMAGE_METHOD("eMMC", 0, BOOT_DEVICE_BOARD, spl_board_load_image);
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