From 7ee37d0e0c06730f99926bdb05781bc0111c0161 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Fri, 16 Feb 2018 01:33:27 +0100 Subject: ARM: rmobile: Convert Porter to SPL Due to size limitations of the MERAM, switch U-Boot to SPL. The SPL is loaded by the SPI_LOADER into MERAM and then loads U-Boot proper into DRAM. This way U-Boot can freely grow in size in DRAM, as there is plenty of it. Signed-off-by: Marek Vasut Cc: Nobuhiro Iwamatsu --- NOTE: To update U-Boot, first install u-boot.img to 0x140000 in SPI NOR, then use the Minimon to flash u-boot-spl.srec using ls,2,e6304000. To generate u-boot-spl.srec, use objcopy: arm-linux-gnueabi-objcopy -O srec spl/u-boot-spl u-boot-spl.srec --- board/renesas/porter/porter.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'board') diff --git a/board/renesas/porter/porter.c b/board/renesas/porter/porter.c index 86dea8bfa7..bd0080d210 100644 --- a/board/renesas/porter/porter.c +++ b/board/renesas/porter/porter.c @@ -115,3 +115,25 @@ void reset_cpu(ulong addr) val |= 0x02; i2c_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1); } + +#ifdef CONFIG_SPL_BUILD +#include +void board_init_f(ulong dummy) +{ + board_early_init_f(); +} + +void spl_board_init(void) +{ + /* UART clocks enabled and gd valid - init serial console */ + preloader_console_init(); +} + +void board_boot_order(u32 *spl_boot_list) +{ + /* Boot from SPI NOR with YMODEM UART fallback. */ + spl_boot_list[0] = BOOT_DEVICE_SPI; + spl_boot_list[1] = BOOT_DEVICE_UART; + spl_boot_list[2] = BOOT_DEVICE_NONE; +} +#endif -- cgit