73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/*
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* (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
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*
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* Authors: Igor Grinberg <grinberg@compulab.co.il>
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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 <nand.h>
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#include <bmp_layout.h>
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DECLARE_GLOBAL_DATA_PTR;
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#ifdef CONFIG_CMD_NAND
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static int splash_load_from_nand(u32 bmp_load_addr, int nand_offset)
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{
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struct bmp_header *bmp_hdr;
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int res;
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size_t bmp_size, bmp_header_size = sizeof(struct bmp_header);
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if (bmp_load_addr + bmp_header_size >= gd->start_addr_sp)
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goto splash_address_too_high;
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res = nand_read_skip_bad(&nand_info[nand_curr_device],
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nand_offset, &bmp_header_size,
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NULL, nand_info[nand_curr_device].size,
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(u_char *)bmp_load_addr);
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if (res < 0)
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return res;
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bmp_hdr = (struct bmp_header *)bmp_load_addr;
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bmp_size = le32_to_cpu(bmp_hdr->file_size);
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if (bmp_load_addr + bmp_size >= gd->start_addr_sp)
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goto splash_address_too_high;
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return nand_read_skip_bad(&nand_info[nand_curr_device],
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nand_offset, &bmp_size,
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NULL, nand_info[nand_curr_device].size,
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(u_char *)bmp_load_addr);
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splash_address_too_high:
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printf("Error: splashimage address too high. Data overwrites U-Boot "
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"and/or placed beyond DRAM boundaries.\n");
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return -1;
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}
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#else
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static inline int splash_load_from_nand(u32 bmp_load_addr, int nand_offset)
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{
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return -1;
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}
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#endif /* CONFIG_CMD_NAND */
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int cl_splash_screen_prepare(int nand_offset)
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{
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char *env_splashimage_value;
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u32 bmp_load_addr;
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env_splashimage_value = getenv("splashimage");
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if (env_splashimage_value == NULL)
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return -1;
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bmp_load_addr = simple_strtoul(env_splashimage_value, 0, 16);
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if (bmp_load_addr == 0) {
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printf("Error: bad splashimage address specified\n");
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return -1;
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}
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return splash_load_from_nand(bmp_load_addr, nand_offset);
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}
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