We have made Android running with SabreAI board. The formal support bout SabreAI board will be added into future Android release. If you just want to bring SabreAI board simply, you can refer to SabreSD to add minor changes to enable it.
For bootloader change with recovery and fastboot support, you can copy fastboot and recovery code from SabreSD board file and create SabreAI android configure file. For example:
diff --git a/board/freescale/mx6q_sabreauto/mx6q_sabreauto.c b/board/freescale/mx6q_sabreauto/mx6q_sabreauto.c
index d97647f..d6c2dda 100644
--- a/board/freescale/mx6q_sabreauto/mx6q_sabreauto.c
+++ b/board/freescale/mx6q_sabreauto/mx6q_sabreauto.c
@@ -1219,3 +1219,54 @@ int checkboard(void)
}
return 0;
}
+
+#ifdef CONFIG_IMX_UDC
+#define SABREAUTO_MAX7310_1_BASE_ADDR IMX_GPIO_NR(8, 0)
+#define SABREAUTO_MAX7310_2_BASE_ADDR IMX_GPIO_NR(8, 8)
+#define SABREAUTO_MAX7310_3_BASE_ADDR IMX_GPIO_NR(8, 16)
+
+#define SABREAUTO_IO_EXP_GPIO1(x) (SABREAUTO_MAX7310_1_BASE_ADDR + (x))
+#define SABREAUTO_IO_EXP_GPIO2(x) (SABREAUTO_MAX7310_2_BASE_ADDR + (x))
+#define SABREAUTO_IO_EXP_GPIO3(x) (SABREAUTO_MAX7310_3_BASE_ADDR + (x))
+
+#define SABREAUTO_USB_HOST1_PWR SABREAUTO_IO_EXP_GPIO2(7)
+#define SABREAUTO_USB_OTG_PWR SABREAUTO_IO_EXP_GPIO3(1)
+
+void udc_pins_setting(void)
+{
+ mxc_iomux_v3_setup_pad(MX6X_IOMUX(PAD_ENET_RX_ER__ANATOP_USBOTG_ID));
+
+ /* USB_OTG_PWR = 0 */
+ gpio_direction_output(SABREAUTO_USB_OTG_PWR, 0);
+ /* USB_H1_POWER = 1 */
+ gpio_direction_output(SABREAUTO_USB_HOST1_PWR, 1);
+
+ mxc_iomux_set_gpr_register(1, 13, 1, 0);
+
+}
+#endif
+
+#ifdef CONFIG_ANDROID_RECOVERY
+
+#define GPIO_VOL_DN_KEY IMX_GPIO_NR(5, 14)
+
+int check_recovery_cmd_file(void)
+{
+ int button_pressed = 0;
+ int recovery_mode = 0;
+
+ recovery_mode = check_and_clean_recovery_flag();
+
+ /* Check Recovery Combo Button press or not. */
+ mxc_iomux_v3_setup_pad(MX6X_IOMUX(PAD_DISP0_DAT20__GPIO_5_14));
+
+ 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;
+}
