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https://github.com/brain-hackers/u-boot-brain
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cm-t35: add support for loading splash image from NAND
Add support for loading splash image from NAND Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
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131a1e603b
commit
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@ -34,7 +34,9 @@
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#include <i2c.h>
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#include <i2c.h>
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#include <usb.h>
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#include <usb.h>
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#include <mmc.h>
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#include <mmc.h>
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#include <nand.h>
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#include <twl4030.h>
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#include <twl4030.h>
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#include <bmp_layout.h>
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#include <linux/compiler.h>
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#include <linux/compiler.h>
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#include <asm/io.h>
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#include <asm/io.h>
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@ -76,6 +78,65 @@ static u32 gpmc_nand_config[GPMC_MAX_REG] = {
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0,
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0,
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};
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};
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#ifdef CONFIG_LCD
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#ifdef CONFIG_CMD_NAND
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static int splash_load_from_nand(u32 bmp_load_addr)
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{
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struct bmp_header *bmp_hdr;
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int res, splash_screen_nand_offset = 0x100000;
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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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splash_screen_nand_offset, &bmp_header_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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splash_screen_nand_offset, &bmp_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(void)
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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 board_splash_screen_prepare(void)
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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);
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}
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#endif /* CONFIG_LCD */
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/*
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/*
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* Routine: board_init
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* Routine: board_init
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* Description: hardware init.
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* Description: hardware init.
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@ -344,5 +344,9 @@
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#define LCD_BPP LCD_COLOR16
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#define LCD_BPP LCD_COLOR16
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#define CONFIG_LCD
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#define CONFIG_LCD
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#define CONFIG_SPLASH_SCREEN
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#define CONFIG_CMD_BMP
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#define CONFIG_BMP_16BPP
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#define CONFIG_SPLASH_SCREEN_PREPARE
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#endif /* __CONFIG_H */
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#endif /* __CONFIG_H */
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