[PATCH v2 5/5] rockchip: rockpro64: Build u-boot-rockchip-spi.bin

[Jonas Karlman]

Enable CONFIG_ROCKCHIP_SPI_IMAGE to build u-boot-rockchip-spi.bin.
Define CONFIG_SYS_SPI_U_BOOT_OFFS to write u-boot.itb at the expected
offset. Enable CONFIG_LTO to reduce size of SPL so that the mkimage
output fit before the 0x60000 offset in u-boot-rockchip-spi.bin.

  => sf probe
  SF: Detected gd25q128 with page size 256 Bytes, erase size 4 KiB, total 16 MiB
  => load mmc 1:1 10000000 u-boot-rockchip-spi.bin
  1442304 bytes read in 27 ms (50.9 MiB/s)
  => sf update $fileaddr 0 $filesize
  device 0 offset 0x0, size 0x160200
  1421824 bytes written, 20480 bytes skipped in 9.501s, speed 155432 B/s

Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>
---
v2:
- Collect r-b tag

 configs/rockpro64-rk3399_defconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configs/rockpro64-rk3399_defconfig b/configs/rockpro64-rk3399_defconfig
index 0ca2cecade25..f41c03067903 100644
--- a/configs/rockpro64-rk3399_defconfig
+++ b/configs/rockpro64-rk3399_defconfig
@@ -11,6 +11,7 @@ CONFIG_ENV_OFFSET=0x3F8000
 CONFIG_DEFAULT_DEVICE_TREE="rk3399-rockpro64"
 CONFIG_DM_RESET=y
 CONFIG_ROCKCHIP_RK3399=y
+CONFIG_ROCKCHIP_SPI_IMAGE=y
 CONFIG_TARGET_ROCKPRO64_RK3399=y
 CONFIG_SPL_STACK=0x400000
 CONFIG_DEBUG_UART_BASE=0xFF1A0000
@@ -20,6 +21,7 @@ CONFIG_SPL_SPI=y
 CONFIG_SYS_LOAD_ADDR=0x800800
 CONFIG_PCI=y
 CONFIG_DEBUG_UART=y
+CONFIG_LTO=y
 CONFIG_SPL_FIT_SIGNATURE=y
 CONFIG_BOOTSTAGE=y
 CONFIG_BOOTSTAGE_REPORT=y
@@ -37,6 +39,7 @@ CONFIG_SPL_BSS_MAX_SIZE=0x2000
 CONFIG_SPL_STACK_R=y
 CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x10000
 CONFIG_SPL_SPI_LOAD=y
+CONFIG_SYS_SPI_U_BOOT_OFFS=0x60000
 CONFIG_TPL=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_GPT=y
-- 
2.40.1