ENGR00315499-10 ARM:imx6:sabresd/sabreauto Add android fastboot supporting

Support android features:
fastboot, booti command and recovery for sabresd SD, sabresd eMMC,
sabreauto SD, sabreauto NAND.

For all booting media (SD, eMMC, NAND), inherits the partitions layout
from v2009.08. Fastboot will detect the booting media to replace
hardcoding fastboot device. SATA is not supported.

FDT is supported to use the "unused" fields in bootimg header which
requires the FDT to be combined into the boot.img.
For non-FDT boot.img, the "unused" fields should left to NULL and is
compatible to boot.

Signed-off-by: Ye.Li <B37916@freescale.com>
Signed-off-by: Nitin Garg <nitin.garg@freescale.com>

1 files changed, 123 insertions, 0 deletions

diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c
index 26859ee..bdb6b13 100644
--- a/board/freescale/mx6sabresd/mx6sabresd.c
+++ b/board/freescale/mx6sabresd/mx6sabresd.c
@@ -33,6 +33,13 @@
 #include <i2c.h>
 #include <asm/imx-common/mxc_i2c.h>
 #endif
+#ifdef CONFIG_FASTBOOT
+#include <fastboot.h>
+#ifdef CONFIG_ANDROID_RECOVERY
+#include <recovery.h>
+#endif
+#endif /*CONFIG_FASTBOOT*/
+
 DECLARE_GLOBAL_DATA_PTR;
 
 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
@@ -909,6 +916,122 @@ void epdc_power_off(void)
 }
 #endif
 
+
+#ifdef CONFIG_FASTBOOT
+
+void board_fastboot_setup(void)
+{
+	switch (get_boot_device()) {
+#if defined(CONFIG_FASTBOOT_STORAGE_SATA)
+	case SATA_BOOT:
+		if (!getenv("fastboot_dev"))
+			setenv("fastboot_dev", "sata");
+		if (!getenv("bootcmd"))
+			setenv("bootcmd", "booti sata");
+		break;
+#endif /*CONFIG_FASTBOOT_STORAGE_SATA*/
+#if defined(CONFIG_FASTBOOT_STORAGE_MMC)
+	case SD2_BOOT:
+	case MMC2_BOOT:
+	    if (!getenv("fastboot_dev"))
+			setenv("fastboot_dev", "mmc0");
+	    if (!getenv("bootcmd"))
+			setenv("bootcmd", "booti mmc0");
+	    break;
+	case SD3_BOOT:
+	case MMC3_BOOT:
+	    if (!getenv("fastboot_dev"))
+			setenv("fastboot_dev", "mmc1");
+	    if (!getenv("bootcmd"))
+			setenv("bootcmd", "booti mmc1");
+	    break;
+	case MMC4_BOOT:
+	    if (!getenv("fastboot_dev"))
+			setenv("fastboot_dev", "mmc2");
+	    if (!getenv("bootcmd"))
+			setenv("bootcmd", "booti mmc2");
+	    break;
+#endif /*CONFIG_FASTBOOT_STORAGE_MMC*/
+	default:
+		printf("unsupported boot devices\n");
+		break;
+	}
+
+}
+
+#ifdef CONFIG_ANDROID_RECOVERY
+
+#define GPIO_VOL_DN_KEY IMX_GPIO_NR(1, 5)
+iomux_v3_cfg_t const recovery_key_pads[] = {
+	(MX6_PAD_GPIO_5__GPIO1_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL)),
+};
+
+int check_recovery_cmd_file(void)
+{
+    int button_pressed = 0;
+    int recovery_mode = 0;
+
+    recovery_mode = recovery_check_and_clean_flag();
+
+    /* Check Recovery Combo Button press or not. */
+	imx_iomux_v3_setup_multiple_pads(recovery_key_pads,
+			ARRAY_SIZE(recovery_key_pads));
+
+    gpio_direction_input(GPIO_VOL_DN_KEY);
+
+    if (gpio_get_value(GPIO_VOL_DN_KEY) == 0) { /* VOL_DN key is low assert */
+		button_pressed = 1;
+		printf("Recovery key pressed\n");
+    }
+
+    return recovery_mode || button_pressed;
+}
+
+void board_recovery_setup(void)
+{
+	int bootdev = get_boot_device();
+
+	switch (bootdev) {
+#if defined(CONFIG_FASTBOOT_STORAGE_SATA)
+	case SATA_BOOT:
+		if (!getenv("bootcmd_android_recovery"))
+			setenv("bootcmd_android_recovery",
+				"booti sata recovery");
+		break;
+#endif /*CONFIG_FASTBOOT_STORAGE_SATA*/
+#if defined(CONFIG_FASTBOOT_STORAGE_MMC)
+	case SD2_BOOT:
+	case MMC2_BOOT:
+		if (!getenv("bootcmd_android_recovery"))
+			setenv("bootcmd_android_recovery",
+				"booti mmc0 recovery");
+		break;
+	case SD3_BOOT:
+	case MMC3_BOOT:
+		if (!getenv("bootcmd_android_recovery"))
+			setenv("bootcmd_android_recovery",
+				"booti mmc1 recovery");
+		break;
+	case MMC4_BOOT:
+		if (!getenv("bootcmd_android_recovery"))
+			setenv("bootcmd_android_recovery",
+				"booti mmc2 recovery");
+		break;
+#endif /*CONFIG_FASTBOOT_STORAGE_MMC*/
+	default:
+		printf("Unsupported bootup device for recovery: dev: %d\n",
+			bootdev);
+		return;
+	}
+
+	printf("setup env for recovery..\n");
+	setenv("bootcmd", "run bootcmd_android_recovery");
+}
+
+#endif /*CONFIG_ANDROID_RECOVERY*/
+
+#endif /*CONFIG_FASTBOOT*/
+
 #ifdef CONFIG_IMX_UDC
 iomux_v3_cfg_t const otg_udc_pads[] = {
 	(MX6_PAD_ENET_RX_ER__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL)),