Falcon mode boots the kernel directly from SPL, without loading
the full U-Boot.
As pico-imx6ul does not have a GPIO for selecting Falcon versus normal
mode, enter in Falcon mode when the customer selects the
CONFIG_SPL_OS_BOOT option in menuconfig.
Signed-off-by: Otavio Salvador <ota...@ossystems.com.br>
---
Changes in v3:
- new patch
Changes in v2: None
board/technexion/pico-imx6ul/spl.c | 8 ++++++++
configs/pico-imx6ul_defconfig | 2 ++
include/configs/pico-imx6ul.h | 12 ++++++++++++
3 files changed, 22 insertions(+)
diff --git a/board/technexion/pico-imx6ul/spl.c
b/board/technexion/pico-imx6ul/spl.c
index 1819722024..6464a32d3b 100644
--- a/board/technexion/pico-imx6ul/spl.c
+++ b/board/technexion/pico-imx6ul/spl.c
@@ -14,6 +14,14 @@
#include <spl.h>
#if defined(CONFIG_SPL_BUILD)
+
+#ifdef CONFIG_SPL_OS_BOOT
+int spl_start_uboot(void)
+{
+ return 0;
+}
+#endif
+
#include <asm/arch/mx6-ddr.h>
static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = {
diff --git a/configs/pico-imx6ul_defconfig b/configs/pico-imx6ul_defconfig
index 3d4063b136..c8d58cbe71 100644
--- a/configs/pico-imx6ul_defconfig
+++ b/configs/pico-imx6ul_defconfig
@@ -21,6 +21,8 @@ CONFIG_SPL_USB_HOST_SUPPORT=y
CONFIG_SPL_USB_GADGET_SUPPORT=y
CONFIG_SPL_USB_SDP_SUPPORT=y
CONFIG_CMD_BOOTMENU=y
+CONFIG_CMD_SPL=y
+CONFIG_CMD_SPL_WRITE_SIZE=0x20000
CONFIG_CMD_MEMTEST=y
CONFIG_CMD_DFU=y
# CONFIG_CMD_FLASH is not set
diff --git a/include/configs/pico-imx6ul.h b/include/configs/pico-imx6ul.h
index 94c14a7a43..8855be107d 100644
--- a/include/configs/pico-imx6ul.h
+++ b/include/configs/pico-imx6ul.h
@@ -14,6 +14,18 @@
#include <asm/mach-imx/gpio.h>
#include "imx6_spl.h"
+#ifdef CONFIG_SPL_OS_BOOT
+/* Falcon Mode */
+#define CONFIG_SPL_FS_LOAD_ARGS_NAME "args"
+#define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage"
+#define CONFIG_SYS_SPL_ARGS_ADDR 0x88000000
+
+/* Falcon Mode - MMC support: args@1MB kernel@2MB */
+#define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x800 /* 1MB */
+#define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS (CONFIG_CMD_SPL_WRITE_SIZE /
512)
+#define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x1000 /* 2MB */
+#endif
+
/* Network support */
#define CONFIG_FEC_MXC
--
2.19.0
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
