86 lines
1.6 KiB
C
86 lines
1.6 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* JZ4780 common routines
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*
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* Copyright (c) 2013 Imagination Technologies
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* Author: Paul Burton <paul.burton@imgtec.com>
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*/
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#include <config.h>
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#include <common.h>
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#include <cpu_func.h>
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#include <init.h>
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#include <asm/io.h>
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#include <asm/sections.h>
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#include <mach/jz4780.h>
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#include <mach/jz4780_dram.h>
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#include <mmc.h>
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#include <spl.h>
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#ifdef CONFIG_SPL_BUILD
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/* Pointer to the global data structure for SPL */
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DECLARE_GLOBAL_DATA_PTR;
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gd_t gdata __attribute__ ((section(".bss")));
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void board_init_f(ulong dummy)
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{
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typedef void __noreturn (*image_entry_noargs_t)(void);
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struct mmc *mmc;
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unsigned long count;
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struct image_header *header;
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int ret;
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/* Set global data pointer */
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gd = &gdata;
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timer_init();
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pll_init();
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sdram_init();
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enable_caches();
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/* Clear the BSS */
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memset(__bss_start, 0, (char *)&__bss_end - __bss_start);
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gd->flags |= GD_FLG_SPL_INIT;
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ret = mmc_initialize(NULL);
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if (ret)
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hang();
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mmc = find_mmc_device(BOOT_DEVICE_MMC1);
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if (ret)
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hang();
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ret = mmc_init(mmc);
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if (ret)
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hang();
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header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
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sizeof(struct image_header));
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count = blk_dread(mmc_get_blk_desc(mmc),
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR,
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0x800, header);
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if (count == 0)
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hang();
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image_entry_noargs_t image_entry =
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(image_entry_noargs_t)CONFIG_SYS_TEXT_BASE;
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image_entry();
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hang();
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}
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#endif /* CONFIG_SPL_BUILD */
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ulong board_get_usable_ram_top(ulong total_size)
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{
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return CONFIG_SYS_SDRAM_BASE + (256 * 1024 * 1024);
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}
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int print_cpuinfo(void)
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{
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printf("CPU: Ingenic JZ4780\n");
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return 0;
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}
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