With the attached patch, plus (only) the DTSI and defconfig patch from armbian [1], mainline uboot gets at least as far as the TPL on the Rock Pi 4B booting from the soldered-down SPI flash.
[1] https://raw.githubusercontent.com/armbian/build/master/patch/u-boot/u-boot-rockchip64/board-rock-pi-4-enable-spi-flash.patch
>From ca3cc8fefb201bf33a6a6d319d9801b9d892ef21 Mon Sep 17 00:00:00 2001 From: Adam Joseph <[email protected]> Date: Fri, 11 Nov 2022 03:54:18 -0800 Subject: [PATCH] drivers/mtd/spi/spi-nor-ids.c: add xt25f32b This chip is soldered to the Rock Pi 4B. Values are adapted from this kernel patch: https://lore.kernel.org/lkml/[email protected]/T/ --- drivers/mtd/spi/spi-nor-ids.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c index 5f8f3ec9..5d270bef 100644 --- a/drivers/mtd/spi/spi-nor-ids.c +++ b/drivers/mtd/spi/spi-nor-ids.c @@ -459,6 +459,7 @@ const struct flash_info spi_nor_ids[] = { #endif #ifdef CONFIG_SPI_FLASH_XTX /* XTX Technology (Shenzhen) Limited */ + { INFO("xt25f32b", 0x0b4016, 0, 64 * 1024, 64, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, { INFO("xt25f128b", 0x0b4018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, #endif { }, -- 2.38.1
