14c425570SMasahiro Yamada /* 2f6e7f07cSMasahiro Yamada * Copyright (C) 2014-2015 Masahiro Yamada <yamada.masahiro@socionext.com> 34c425570SMasahiro Yamada * 44c425570SMasahiro Yamada * SPDX-License-Identifier: GPL-2.0+ 54c425570SMasahiro Yamada */ 64c425570SMasahiro Yamada 74c425570SMasahiro Yamada #include <common.h> 84c425570SMasahiro Yamada #include <spl.h> 98ea4f49aSMasahiro Yamada #include <libfdt.h> 104c425570SMasahiro Yamada #include <nand.h> 11f6e7f07cSMasahiro Yamada #include <linux/io.h> 124c425570SMasahiro Yamada #include <../drivers/mtd/nand/denali.h> 134c425570SMasahiro Yamada 14fec48163SMasahiro Yamada #include "boot-mode/boot-device.h" 15fec48163SMasahiro Yamada 164c425570SMasahiro Yamada static void nand_denali_wp_disable(void) 174c425570SMasahiro Yamada { 184c425570SMasahiro Yamada #ifdef CONFIG_NAND_DENALI 194c425570SMasahiro Yamada /* 204c425570SMasahiro Yamada * Since the boot rom enables the write protection for NAND boot mode, 214c425570SMasahiro Yamada * it must be disabled somewhere for "nand write", "nand erase", etc. 224c425570SMasahiro Yamada * The workaround is here to not disturb the Denali NAND controller 234c425570SMasahiro Yamada * driver just for a really SoC-specific thing. 244c425570SMasahiro Yamada */ 254c425570SMasahiro Yamada void __iomem *denali_reg = (void __iomem *)CONFIG_SYS_NAND_REGS_BASE; 264c425570SMasahiro Yamada 274c425570SMasahiro Yamada writel(WRITE_PROTECT__FLAG, denali_reg + WRITE_PROTECT); 284c425570SMasahiro Yamada #endif 294c425570SMasahiro Yamada } 304c425570SMasahiro Yamada 31881aa5a7SMasahiro Yamada #define VENDOR_PREFIX "socionext," 32881aa5a7SMasahiro Yamada #define DTB_FILE_PREFIX "uniphier-" 338ea4f49aSMasahiro Yamada 34881aa5a7SMasahiro Yamada static int uniphier_set_fdt_file(void) 358ea4f49aSMasahiro Yamada { 368ea4f49aSMasahiro Yamada DECLARE_GLOBAL_DATA_PTR; 37881aa5a7SMasahiro Yamada const char *compat; 38881aa5a7SMasahiro Yamada char dtb_name[256]; 39881aa5a7SMasahiro Yamada int buf_len = 256; 408ea4f49aSMasahiro Yamada 414565a74dSMasahiro Yamada if (getenv("fdt_file")) 424565a74dSMasahiro Yamada return 0; /* do nothing if it is already set */ 434565a74dSMasahiro Yamada 44*b02e4044SSimon Glass compat = fdt_stringlist_get(gd->fdt_blob, 0, "compatible", 0, NULL); 45*b02e4044SSimon Glass if (!compat) 46881aa5a7SMasahiro Yamada return -EINVAL; 47881aa5a7SMasahiro Yamada 48881aa5a7SMasahiro Yamada if (strncmp(compat, VENDOR_PREFIX, strlen(VENDOR_PREFIX))) 49881aa5a7SMasahiro Yamada return -EINVAL; 50881aa5a7SMasahiro Yamada 51881aa5a7SMasahiro Yamada compat += strlen(VENDOR_PREFIX); 52881aa5a7SMasahiro Yamada 53881aa5a7SMasahiro Yamada strncat(dtb_name, DTB_FILE_PREFIX, buf_len); 54881aa5a7SMasahiro Yamada buf_len -= strlen(DTB_FILE_PREFIX); 55881aa5a7SMasahiro Yamada 56881aa5a7SMasahiro Yamada strncat(dtb_name, compat, buf_len); 57881aa5a7SMasahiro Yamada buf_len -= strlen(compat); 58881aa5a7SMasahiro Yamada 59881aa5a7SMasahiro Yamada strncat(dtb_name, ".dtb", buf_len); 60881aa5a7SMasahiro Yamada 6180630dadSMasahiro Yamada return setenv("fdt_file", dtb_name); 628ea4f49aSMasahiro Yamada } 638ea4f49aSMasahiro Yamada 644c425570SMasahiro Yamada int board_late_init(void) 654c425570SMasahiro Yamada { 664c425570SMasahiro Yamada puts("MODE: "); 674c425570SMasahiro Yamada 68fec48163SMasahiro Yamada switch (spl_boot_device_raw()) { 694c425570SMasahiro Yamada case BOOT_DEVICE_MMC1: 704c425570SMasahiro Yamada printf("eMMC Boot\n"); 714c425570SMasahiro Yamada setenv("bootmode", "emmcboot"); 724c425570SMasahiro Yamada break; 734c425570SMasahiro Yamada case BOOT_DEVICE_NAND: 744c425570SMasahiro Yamada printf("NAND Boot\n"); 754c425570SMasahiro Yamada setenv("bootmode", "nandboot"); 764c425570SMasahiro Yamada nand_denali_wp_disable(); 774c425570SMasahiro Yamada break; 784c425570SMasahiro Yamada case BOOT_DEVICE_NOR: 794c425570SMasahiro Yamada printf("NOR Boot\n"); 804c425570SMasahiro Yamada setenv("bootmode", "norboot"); 814c425570SMasahiro Yamada break; 82fec48163SMasahiro Yamada case BOOT_DEVICE_USB: 83fec48163SMasahiro Yamada printf("USB Boot\n"); 84fec48163SMasahiro Yamada setenv("bootmode", "usbboot"); 85fec48163SMasahiro Yamada break; 864c425570SMasahiro Yamada default: 87d90b9745SMasahiro Yamada printf("Unknown\n"); 88d90b9745SMasahiro Yamada break; 894c425570SMasahiro Yamada } 904c425570SMasahiro Yamada 91881aa5a7SMasahiro Yamada if (uniphier_set_fdt_file()) 92881aa5a7SMasahiro Yamada printf("fdt_file environment was not set correctly\n"); 938ea4f49aSMasahiro Yamada 944c425570SMasahiro Yamada return 0; 954c425570SMasahiro Yamada } 96