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bios/boot: add specific flash_boot for linux with vexriscv

This commit is contained in:
Florent Kermarrec 2019-05-04 11:27:01 +02:00
parent 1ba1ad9a00
commit fcd518b5d0
1 changed files with 24 additions and 0 deletions
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24
litex/soc/software/bios/boot.c
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@ -304,6 +304,28 @@ void netboot(void)
#endif
#ifdef FLASHBOOT_LINUX_VEXRISCV
/* TODO: add configurable flash mapping, improve integration */
void flashboot(void)
{
printf("Loading Image from flash...\n");
memcpy((void *)MAIN_RAM_BASE + 0x00000000, (void *)0x50400000, 0x400000);
printf("Loading rootfs.cpio from flash...\n");
memcpy((void *)MAIN_RAM_BASE + 0x02000000, (void *)0x50800000, 0x700000);
printf("Loading rv32.dtb from flash...\n");
memcpy((void *)MAIN_RAM_BASE + 0x03000000, (void *)0x50f00000, 0x001000);
printf("Loading emulator.bin from flash...\n");
memcpy((void *)EMULATOR_RAM_BASE + 0x00000000, (void *)0x50f80000, 0x004000);
boot(0, 0, 0, EMULATOR_RAM_BASE);
}
#else
#ifdef FLASH_BOOT_ADDRESS
/* On systems with exernal SDRAM we copy out of the SPI flash into the SDRAM
@ -346,6 +368,8 @@ void flashboot(void)
}
#endif
#endif
#ifdef ROM_BOOT_ADDRESS
/* When firmware is small enough, it can be interesting to run code from an
embedded blockram memory (faster and not impacted by memory controller