rockchip: rk3399-pinebook-pro: Fix SPL max size and SPI flash payload offset
TPL max size is limited to 184 KB, SPL is loaded to 0x0 and TF-A is
loaded to 0x40000, this limit SPL max size to 256 KB. With BootRom only
reading first 2 KB per 4 KB page of SPI flash, 880 KB may be needed for
TPL+SPL in a worst-case scenario. (184 KB + 256 KB) x 2 = 880 KB
Use 0xE0000 (896 KB) as the payload offset in SPI flash, this allows
for a payload of 3168 KB before env offset start to overlap.
Also add CONFIG_ROCKCHIP_SPI_IMAGE=y to build a bootable SPI flash
image, u-boot-rockchip-spi.bin.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Quentin Schulz <foss+u-boot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/configs/pinebook-pro-rk3399_defconfig b/configs/pinebook-pro-rk3399_defconfig
index 5d493c9..ae3211b 100644
--- a/configs/pinebook-pro-rk3399_defconfig
+++ b/configs/pinebook-pro-rk3399_defconfig
@@ -12,6 +12,7 @@
CONFIG_DEFAULT_DEVICE_TREE="rk3399-pinebook-pro"
CONFIG_DM_RESET=y
CONFIG_ROCKCHIP_RK3399=y
+CONFIG_ROCKCHIP_SPI_IMAGE=y
CONFIG_TARGET_PINEBOOK_PRO_RK3399=y
CONFIG_SPL_STACK=0x400000
CONFIG_DEBUG_UART_BASE=0xFF1A0000
@@ -26,7 +27,7 @@
CONFIG_DEFAULT_FDT_FILE="rockchip/rk3399-pinebook-pro.dtb"
CONFIG_DISPLAY_BOARDINFO_LATE=y
CONFIG_MISC_INIT_R=y
-CONFIG_SPL_MAX_SIZE=0x2e000
+CONFIG_SPL_MAX_SIZE=0x40000
CONFIG_SPL_PAD_TO=0x7f8000
CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
CONFIG_SPL_BSS_START_ADDR=0x400000
@@ -36,6 +37,7 @@
CONFIG_SPL_STACK_R=y
CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x10000
CONFIG_SPL_SPI_LOAD=y
+CONFIG_SYS_SPI_U_BOOT_OFFS=0xE0000
CONFIG_SPL_ATF_NO_PLATFORM_PARAM=y
CONFIG_TPL=y
CONFIG_CMD_BOOTZ=y