From: Fabio Estevam <feste...@gmail.com>
Falcon mode boots the kernel directly from SPL, without loading
the full U-Boot.
As pico-imx7d 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: Fabio Estevam <feste...@gmail.com>
Signed-off-by: Otavio Salvador <ota...@ossystems.com.br>
---
board/technexion/pico-imx7d/spl.c | 8 ++++++++
configs/pico-imx7d_defconfig | 2 ++
include/configs/pico-imx7d.h | 12 ++++++++++++
3 files changed, 22 insertions(+)
diff --git a/board/technexion/pico-imx7d/spl.c
b/board/technexion/pico-imx7d/spl.c
index 14d96cb0c5..a5463ee68b 100644
--- a/board/technexion/pico-imx7d/spl.c
+++ b/board/technexion/pico-imx7d/spl.c
@@ -13,6 +13,14 @@
#include <spl.h>
#if defined(CONFIG_SPL_BUILD)
+
+#ifdef CONFIG_SPL_OS_BOOT
+int spl_start_uboot(void)
+{
+ return 0;
+}
+#endif
+
static struct ddrc ddrc_regs_val = {
.mstr = 0x01040001,
.rfshtmg = 0x00400046,
diff --git a/configs/pico-imx7d_defconfig b/configs/pico-imx7d_defconfig
index 3eb26c75d6..6ea49fdee2 100644
--- a/configs/pico-imx7d_defconfig
+++ b/configs/pico-imx7d_defconfig
@@ -21,6 +21,8 @@ CONFIG_SPL_USB_SDP_SUPPORT=y
CONFIG_CMD_BOOTMENU=y
# CONFIG_CMD_IMI is not set
# CONFIG_CMD_XIMG is not set
+CONFIG_CMD_SPL=y
+CONFIG_CMD_SPL_WRITE_SIZE=0x20000
CONFIG_CMD_DFU=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_GPT=y
diff --git a/include/configs/pico-imx7d.h b/include/configs/pico-imx7d.h
index 94c846a395..8f1876c8b2 100644
--- a/include/configs/pico-imx7d.h
+++ b/include/configs/pico-imx7d.h
@@ -12,6 +12,18 @@
#include "imx7_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
+
/* Size of malloc() pool */
#define CONFIG_SYS_MALLOC_LEN (32 * SZ_1M)
--
2.18.0
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