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Commit d96796ca authored by Diego Dorta's avatar Diego Dorta Committed by Stefano Babic
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mx6sabresd: Add Falcon mode support


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: default avatarDiego Dorta <diego.dorta@nxp.com>
parent 940afa4e
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......@@ -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;
......
......@@ -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 */
......
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