Add configuration file with parameters that are very likely to be shared by all ast2500-based boards. Add ast2500-board.c file with the init code that is very likely to be shared by all ast2500-based boards. Reviewed-by: Simon Glass <sjg@chromium.org>master
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/*
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* Copyright (c) 2016 Google, Inc |
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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 <dm.h> |
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#include <ram.h> |
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#include <timer.h> |
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#include <asm/io.h> |
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#include <asm/arch/timer.h> |
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#include <asm/arch/wdt.h> |
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#include <linux/err.h> |
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#include <dm/uclass.h> |
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/*
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* Second Watchdog Timer by default is configured |
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* to trigger secondary boot source. |
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*/ |
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#define AST_2ND_BOOT_WDT 1 |
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/*
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* Third Watchdog Timer by default is configured |
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* to toggle Flash address mode switch before reset. |
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*/ |
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#define AST_FLASH_ADDR_DETECT_WDT 2 |
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DECLARE_GLOBAL_DATA_PTR; |
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void lowlevel_init(void) |
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{ |
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/*
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* These two watchdogs need to be stopped as soon as possible, |
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* otherwise the board might hang. By default they are set to |
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* a very short timeout and even simple debug write to serial |
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* console early in the init process might cause them to fire. |
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*/ |
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struct ast_wdt *flash_addr_wdt = |
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(struct ast_wdt *)(WDT_BASE + |
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sizeof(struct ast_wdt) * |
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AST_FLASH_ADDR_DETECT_WDT); |
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clrbits_le32(&flash_addr_wdt->ctrl, WDT_CTRL_EN); |
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#ifndef CONFIG_FIRMWARE_2ND_BOOT |
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struct ast_wdt *sec_boot_wdt = |
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(struct ast_wdt *)(WDT_BASE + |
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sizeof(struct ast_wdt) * |
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AST_2ND_BOOT_WDT); |
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clrbits_le32(&sec_boot_wdt->ctrl, WDT_CTRL_EN); |
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#endif |
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} |
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int board_init(void) |
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{ |
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gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; |
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return 0; |
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} |
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int dram_init(void) |
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{ |
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struct udevice *dev; |
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struct ram_info ram; |
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int ret; |
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ret = uclass_get_device(UCLASS_RAM, 0, &dev); |
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if (ret) { |
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debug("DRAM FAIL1\r\n"); |
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return ret; |
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} |
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ret = ram_get_info(dev, &ram); |
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if (ret) { |
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debug("DRAM FAIL2\r\n"); |
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return ret; |
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} |
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gd->ram_size = ram.size; |
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return 0; |
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} |
@ -0,0 +1,81 @@ |
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/*
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* Copyright (C) 2012-2020 ASPEED Technology Inc. |
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* Ryan Chen <ryan_chen@aspeedtech.com> |
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* |
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* Copyright 2016 IBM Corporation |
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* (C) Copyright 2016 Google, Inc |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#ifndef __AST_COMMON_CONFIG_H |
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#define __AST_COMMON_CONFIG_H |
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/* Misc CPU related */ |
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#define CONFIG_CMDLINE_TAG |
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#define CONFIG_SETUP_MEMORY_TAGS |
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#define CONFIG_INITRD_TAG |
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#define CONFIG_CMDLINE_EDITING |
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/* Enable cache controller */ |
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#define CONFIG_SYS_DCACHE_OFF |
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#define CONFIG_SYS_SDRAM_BASE 0x80000000 |
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#ifdef CONFIG_PRE_CON_BUF_SZ |
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#define CONFIG_SYS_INIT_RAM_ADDR (0x1e720000 + CONFIG_PRE_CON_BUF_SZ) |
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#define CONFIG_SYS_INIT_RAM_SIZE (36*1024 - CONFIG_PRE_CON_BUF_SZ) |
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#else |
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#define CONFIG_SYS_INIT_RAM_ADDR (0x1e720000) |
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#define CONFIG_SYS_INIT_RAM_SIZE (36*1024) |
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#endif |
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#define SYS_INIT_RAM_END (CONFIG_SYS_INIT_RAM_ADDR \ |
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+ CONFIG_SYS_INIT_RAM_SIZE) |
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#define CONFIG_SYS_INIT_SP_ADDR (SYS_INIT_RAM_END \ |
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- GENERATED_GBL_DATA_SIZE) |
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#define CONFIG_NR_DRAM_BANKS 1 |
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#define CONFIG_SYS_MALLOC_LEN (32 << 20) |
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/*
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* NS16550 Configuration |
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*/ |
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#define CONFIG_BAUDRATE 115200 |
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/*
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* BOOTP options |
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*/ |
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#define CONFIG_BOOTP_BOOTFILESIZE |
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#define CONFIG_BOOTP_BOOTPATH |
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#define CONFIG_BOOTP_GATEWAY |
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#define CONFIG_BOOTP_HOSTNAME |
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#define CONFIG_BOOTP_SUBNETMASK |
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/*
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* Miscellaneous configurable options |
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*/ |
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#define CONFIG_SYS_LONGHELP |
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#define CONFIG_SYS_CBSIZE 256 |
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/* Print Buffer Size */ |
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#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ |
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+ sizeof(CONFIG_SYS_PROMPT) + 16) |
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#define CONFIG_SYS_MAXARGS 16 |
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#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE |
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#define CONFIG_BOOTARGS \ |
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"console=ttyS4,115200n8" \
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" root=/dev/ram rw" |
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#define CONFIG_BOOTCOMMAND "bootm 20080000 20300000" |
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#define CONFIG_ENV_OVERWRITE |
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#define CONFIG_EXTRA_ENV_SETTINGS \ |
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"verify=yes\0" \
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"spi_dma=yes\0" \
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"" |
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#endif /* __AST_COMMON_CONFIG_H */ |
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