Allow i.MX6Q Sabre SD to load the kernel and dtb via SPL in Falcon mode.
Based on the Falcon mode code for MX6 Gateworks Ventana board.
Signed-off-by: Diego Dorta diego.dorta@nxp.com --- board/freescale/mx6sabresd/mx6sabresd.c | 12 ++++++++++++ include/configs/mx6sabresd.h | 12 ++++++++++++ 2 files changed, 24 insertions(+)
diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c index e58c03c..2b6d7be 100644 --- a/board/freescale/mx6sabresd/mx6sabresd.c +++ b/board/freescale/mx6sabresd/mx6sabresd.c @@ -57,6 +57,8 @@ DECLARE_GLOBAL_DATA_PTR;
#define DISP0_PWR_EN IMX_GPIO_NR(1, 21)
+#define KEY_VOL_UP IMX_GPIO_NR(1, 4) + int dram_init(void) { gd->ram_size = imx_ddr_size(); @@ -682,6 +684,16 @@ int checkboard(void) #include <spl.h> #include <libfdt.h>
+#ifdef CONFIG_SPL_OS_BOOT +int spl_start_uboot(void) +{ + gpio_direction_input(KEY_VOL_UP); + + /* Only enter in Falcon mode if KEY_VOL_UP is pressed */ + return gpio_get_value(KEY_VOL_UP); +} +#endif + static void ccgr_init(void) { struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; diff --git a/include/configs/mx6sabresd.h b/include/configs/mx6sabresd.h index 5c2734d..6a7a0d3 100644 --- a/include/configs/mx6sabresd.h +++ b/include/configs/mx6sabresd.h @@ -11,6 +11,7 @@
#ifdef CONFIG_SPL #include "imx6_spl.h" +#undef CONFIG_SPL_EXT_SUPPORT #endif
#define CONFIG_MACH_TYPE 3980 @@ -22,6 +23,17 @@
#include "mx6sabre_common.h"
+/* Falcon Mode */ +#define CONFIG_CMD_SPL +#define CONFIG_SPL_OS_BOOT +#define CONFIG_SYS_SPL_ARGS_ADDR 0x18000000 +#define CONFIG_CMD_SPL_WRITE_SIZE (128 * SZ_1K) + +/* 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 */ + #define CONFIG_SYS_FSL_USDHC_NUM 3 #if defined(CONFIG_ENV_IS_IN_MMC) #define CONFIG_SYS_MMC_ENV_DEV 1 /* SDHC3 */