Add Falcon mode support to boot Linux directly after SPL.
Signed-off-by: Jagan Teki jagan@amarulasolutions.com --- board/bticino/mamoj/README | 27 +++++++++++++++++++++++++++ board/bticino/mamoj/spl.c | 11 +++++++++++ configs/imx6dl_mamoj_defconfig | 1 + include/configs/imx6dl-mamoj.h | 12 ++++++++++++ 4 files changed, 51 insertions(+)
diff --git a/board/bticino/mamoj/README b/board/bticino/mamoj/README index 8b0e9c3e0c..5333c72537 100644 --- a/board/bticino/mamoj/README +++ b/board/bticino/mamoj/README @@ -15,6 +15,8 @@ The following methods can be used for booting Mamoj boards:
2. eMMC boot (via DFU)
+3. Falcon mode + 1. USB SDP boot: ---------------
@@ -92,6 +94,31 @@ The following methods can be used for booting Mamoj boards:
Poweroff and Poweron the board and see U-Boot booting from eMMC.
+3. Falcon mode: +-------------- + + - Skip 10M space and create dual partitions for eMMC, start sector is 20480 + + Partition Map for MMC device 2 -- Partition Type: DOS + + Part Start Sector Num Sectors UUID Type + 1 20480 131072 c52e78be-01 83 + 2 151552 7581696 c52e78be-02 83 + + - Write uImage + + => fatload mmc 2:1 $kernel_addr_r uImage + => mmc write $kernel_addr_r 0x1000 0x4000 + + - Write dtb and args + + => setenv bootargs console=ttymxc2,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait rw quiet + => fatload mmc 2:1 $fdt_addr_r imx6dl-mamoj.dtb + => spl export fdt $kernel_addr_r - $fdt_addr_r + => mmc write 0x13000000 0x800 0x800 + + Poweroff and Poweron the board and see Linux booting directly after SPL. + -- Jagan Teki jagan@amarulasolutions.com 03/12/18 diff --git a/board/bticino/mamoj/spl.c b/board/bticino/mamoj/spl.c index 4274cc8712..c52183749f 100644 --- a/board/bticino/mamoj/spl.c +++ b/board/bticino/mamoj/spl.c @@ -30,6 +30,17 @@ static iomux_v3_cfg_t const uart3_pads[] = { IOMUX_PADS(PAD_EIM_D25__UART3_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), };
+#ifdef CONFIG_SPL_OS_BOOT +int spl_start_uboot(void) +{ + /* break into full u-boot on 'c' */ + if (serial_tstc() && serial_getc() == 'c') + return 1; + + return 0; +} +#endif + struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = { .dram_sdclk_0 = IMX6SDL_DRIVE_STRENGTH, .dram_sdclk_1 = IMX6SDL_DRIVE_STRENGTH, diff --git a/configs/imx6dl_mamoj_defconfig b/configs/imx6dl_mamoj_defconfig index e34c2d9be3..d789496dff 100644 --- a/configs/imx6dl_mamoj_defconfig +++ b/configs/imx6dl_mamoj_defconfig @@ -3,6 +3,7 @@ CONFIG_ARCH_MX6=y CONFIG_SYS_TEXT_BASE=0x17800000 CONFIG_SYS_MALLOC_F_LEN=0x2000 CONFIG_TARGET_MX6DL_MAMOJ=y +CONFIG_SPL_OS_BOOT=y # CONFIG_CMD_BMODE is not set CONFIG_DEFAULT_DEVICE_TREE="imx6dl-mamoj" CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg" diff --git a/include/configs/imx6dl-mamoj.h b/include/configs/imx6dl-mamoj.h index 0ac238b82d..2f5e212b88 100644 --- a/include/configs/imx6dl-mamoj.h +++ b/include/configs/imx6dl-mamoj.h @@ -64,6 +64,18 @@ #define CONFIG_MXC_USB_FLAGS 0 #define CONFIG_USB_MAX_CONTROLLER_COUNT 2
+/* Falcon */ +#define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" +#define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" +#define CONFIG_CMD_SPL +#define CONFIG_SYS_SPL_ARGS_ADDR 0x13000000 +#define CONFIG_CMD_SPL_WRITE_SIZE (128 * SZ_1K) + +/* 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 */ + /* Miscellaneous configurable options */ #define CONFIG_SYS_MEMTEST_START 0x80000000 #define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_MEMTEST_START + 0x8000000)