ENGR00294905 ARM:imx6:sabreauto Add USB HOST BSP support

Sabreauto board has pin conflict (pin EIM_D18) between NOR flash
and i2c3. To enable the USB host, the i2c3 must be used to operate
the max7310 IO expander to output the VBUS power.

As SPINOR is enabled at default, it is impossible to use USB host
at same time. Thus, remove the SYS_USE_SPINOR from sabreauto
configurations to disable SPINOR.

Signed-off-by: Ye.Li <B37916@freescale.com>

3 files changed, 144 insertions, 15 deletions

diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
index cb627d7..de59829 100644
--- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c
+++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012-2013 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012-2014 Freescale Semiconductor, Inc.
  *
  * Author: Fabio Estevam <fabio.estevam@freescale.com>
  * Author: Jason Liu <r64343@freescale.com>
@@ -49,6 +49,10 @@
 #endif
 #endif /*CONFIG_FASTBOOT*/
 
+#ifdef CONFIG_MAX7310_IOEXP
+#include <gpio_exp.h>
+#endif
+
 DECLARE_GLOBAL_DATA_PTR;
 
 #define I2C_EXP_RST IMX_GPIO_NR(1, 15)
@@ -100,8 +104,30 @@ struct i2c_pads_info i2c_pad_info1 = {
 		.gp = IMX_GPIO_NR(4, 13)
 	}
 };
+
+struct i2c_pads_info i2c_pad_info2 = {
+	.scl = {
+		.i2c_mode = MX6_PAD_GPIO_3__I2C3_SCL | PC,
+		.gpio_mode = MX6_PAD_GPIO_3__GPIO_1_3 | PC,
+		.gp = IMX_GPIO_NR(1, 3)
+	},
+	.sda = {
+		.i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,
+		.gpio_mode = MX6_PAD_EIM_D18__GPIO_3_18 | PC,
+		.gp = IMX_GPIO_NR(3, 18)
+	}
+};
+
+iomux_v3_cfg_t const i2c_info2_steer_pads[] = {
+	/* Steer logic */
+	MX6_PAD_EIM_A24__GPIO_5_4    | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
 #endif
 
+iomux_v3_cfg_t const ioexp_max7310_reset_pads[] = {
+	MX6_PAD_SD2_DAT0__GPIO_1_15    | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
 int dram_init(void)
 {
 	gd->ram_size = ((ulong)CONFIG_DDR_MB * 1024 * 1024);
@@ -446,6 +472,39 @@ int setup_sata(void)
 }
 #endif
 
+#ifdef CONFIG_MAX7310_IOEXP
+void reset_max7310(void)
+{
+	imx_iomux_v3_setup_multiple_pads(ioexp_max7310_reset_pads,
+					ARRAY_SIZE(ioexp_max7310_reset_pads));
+	gpio_direction_output(I2C_EXP_RST, 1);
+}
+
+int setup_max7310(void)
+{
+#ifdef CONFIG_I2C_MXC
+	/* set steering config to i2c,
+	  * note: this causes pin conflicts with eimnor and spinor
+	  */
+	imx_iomux_v3_setup_multiple_pads(i2c_info2_steer_pads,
+					ARRAY_SIZE(i2c_info2_steer_pads));
+	gpio_direction_output(IMX_GPIO_NR(5, 4), 1);
+
+	/*setup i2c info 2*/
+	setup_i2c(2, CONFIG_SYS_I2C_SPEED,
+					CONFIG_SYS_I2C_SLAVE + 1, &i2c_pad_info2);
+
+	gpio_exp_setup_port(1, 1, 0x30);
+	gpio_exp_setup_port(2, 1, 0x32);
+	gpio_exp_setup_port(3, 1, 0x34);
+
+	return 0;
+#else
+	return -EPERM;
+#endif
+}
+#endif
+
 int mx6_rgmii_rework(struct phy_device *phydev)
 {
 	unsigned short val;
@@ -726,6 +785,11 @@ int board_early_init_f(void)
 {
 	setup_iomux_uart();
 
+#ifdef CONFIG_MAX7310_IOEXP
+	/*Reset gpio expander at early stage*/
+	reset_max7310();
+#endif
+
 #if defined(CONFIG_VIDEO_IPUV3)
 	setup_display();
 #endif
@@ -779,6 +843,10 @@ int board_late_init(void)
 		return -1;
 #endif
 
+#ifdef CONFIG_MAX7310_IOEXP
+	setup_max7310();
+#endif
+
 	return 0;
 }
 
@@ -924,3 +992,53 @@ void udc_pins_setting(void)
 }
 
 #endif /*CONFIG_IMX_UDC*/
+
+#ifdef CONFIG_USB_EHCI_MX6
+#define USB_HOST1_PWR     IOEXP_GPIO_NR(2, 7)
+#define USB_OTG_PWR       IOEXP_GPIO_NR(3, 1)
+
+iomux_v3_cfg_t const usb_otg_pads[] = {
+	MX6_PAD_ENET_RX_ER__ANATOP_USBOTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+int board_ehci_hcd_init(int port)
+{
+	switch (port) {
+	case 0:
+		imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
+			ARRAY_SIZE(usb_otg_pads));
+
+		/*set daisy chain for otg_pin_id on 6q. for 6dl, this bit is reserved*/
+		mxc_iomux_set_gpr_register(1, 13, 1, 0);
+		break;
+	case 1:
+		break;
+	default:
+		printf("MXC USB port %d not yet supported\n", port);
+		return 1;
+	}
+	return 0;
+}
+
+int board_ehci_power(int port, int on)
+{
+	switch (port) {
+	case 0:
+		if (on)
+			gpio_exp_direction_output(USB_OTG_PWR, 1);
+		else
+			gpio_exp_direction_output(USB_OTG_PWR, 0);
+		break;
+	case 1:
+		if (on)
+			gpio_exp_direction_output(USB_HOST1_PWR, 1);
+		else
+			gpio_exp_direction_output(USB_HOST1_PWR, 0);
+		break;
+	default:
+		printf("MXC USB port %d not yet supported\n", port);
+		return 1;
+	}
+	return 0;
+}
+#endif
diff --git a/boards.cfg b/boards.cfg
index 1b0146d..1062af5 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -256,22 +256,22 @@ mx53smd                      arm         armv7       mx53smd             freesca
 ima3-mx53                    arm         armv7       ima3-mx53           esg            mx5		ima3-mx53:IMX_CONFIG=board/esg/ima3-mx53/imximage.cfg
 vision2                      arm         armv7       vision2             ttcontrol      mx5		vision2:IMX_CONFIG=board/ttcontrol/vision2/imximage_hynix.cfg
 mx6dlarm2                    arm         armv7       mx6qarm2            freescale      mx6		mx6qarm2:IMX_CONFIG=board/freescale/mx6qarm2/imximage_mx6dl.cfg,MX6DL
-mx6dlsabreauto               arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6dl.cfg,MX6DL,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=2048,SYS_USE_SPINOR
+mx6dlsabreauto               arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6dl.cfg,MX6DL,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=2048
 mx6dlsabreauto_spinor        arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6dl.cfg,MX6DL,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=2048,SYS_BOOT_SPINOR
 mx6dlsabreauto_eimnor        arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6dl.cfg,MX6DL,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=2048,SYS_BOOT_EIMNOR
 mx6dlsabreauto_nand          arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6dl.cfg,MX6DL,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=2048,SYS_BOOT_NAND
-mx6dlsabreautoandroid        arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6dl.cfg,MX6DL,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=2048,SYS_USE_SPINOR,ANDROID_SUPPORT
+mx6dlsabreautoandroid        arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6dl.cfg,MX6DL,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=2048,ANDROID_SUPPORT
 mx6dlsabreautoandroid_nand    arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6dl.cfg,MX6DL,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=2048,SYS_BOOT_NAND,ANDROID_SUPPORT
 mx6dlsabresd                 arm         armv7       mx6qsabresd         freescale      mx6		mx6qsabresd:IMX_CONFIG=board/freescale/mx6qsabresd/mx6dl_4x_mt41j128.cfg,MX6DL,DEFAULT_FDT_FILE="imx6dl-sabresd.dtb",DDR_MB=1024,SYS_USE_SPINOR
 mx6dlsabresdandroid          arm         armv7       mx6qsabresd         freescale      mx6		mx6qsabresd:IMX_CONFIG=board/freescale/mx6qsabresd/mx6dl_4x_mt41j128.cfg,MX6DL,DEFAULT_FDT_FILE="imx6dl-sabresd.dtb",DDR_MB=1024,SYS_USE_SPINOR,ANDROID_SUPPORT
 mx6qsabresd_mfg              arm         armv7       mx6qsabresd         freescale      mx6		mx6qsabresd_mfg:IMX_CONFIG=board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabresd.dtb",DDR_MB=1024,SYS_USE_SPINOR
 mx6qarm2                     arm         armv7       mx6qarm2            freescale      mx6		mx6qarm2:IMX_CONFIG=board/freescale/mx6qarm2/imximage.cfg,MX6Q
-mx6qsabreauto                arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6q.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabreauto.dtb",DDR_MB=2048,SYS_USE_SPINOR
+mx6qsabreauto                arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6q.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabreauto.dtb",DDR_MB=2048
 mx6qsabreauto_spinor         arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6q.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabreauto.dtb",DDR_MB=2048,SYS_BOOT_SPINOR
 mx6qsabreauto_eimnor         arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6q.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabreauto.dtb",DDR_MB=2048,SYS_BOOT_EIMNOR
 mx6qsabreauto_nand           arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6q.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabreauto.dtb",DDR_MB=2048,SYS_BOOT_NAND
 mx6qsabreauto_sata           arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6q.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabreauto.dtb",DDR_MB=2048,SYS_BOOT_SATA
-mx6qsabreautoandroid         arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6q.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabreauto.dtb",DDR_MB=2048,SYS_USE_SPINOR,ANDROID_SUPPORT
+mx6qsabreautoandroid         arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6q.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabreauto.dtb",DDR_MB=2048,ANDROID_SUPPORT
 mx6qsabreautoandroid_nand    arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6q.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabreauto.dtb",DDR_MB=2048,SYS_BOOT_NAND,ANDROID_SUPPORT
 mx6qsabrelite                arm         armv7       mx6qsabrelite       freescale      mx6		mx6qsabrelite:IMX_CONFIG=board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg
 mx6qsabresd                  arm         armv7       mx6qsabresd         freescale      mx6		mx6qsabresd:IMX_CONFIG=board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabresd.dtb",DDR_MB=1024,SYS_USE_SPINOR
@@ -279,11 +279,11 @@ mx6qsabresd_sata             arm         armv7       mx6qsabresd         freesca
 mx6qsabresdandroid       arm         armv7       mx6qsabresd         freescale      mx6		mx6qsabresd:IMX_CONFIG=board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg,MX6Q,DEFAULT_FDT_FILE="imx6q-sabresd.dtb",DDR_MB=1024,SYS_USE_SPINOR,ANDROID_SUPPORT
 mx6solosabresd               arm         armv7       mx6qsabresd         freescale      mx6             mx6qsabresd:IMX_CONFIG=board/freescale/mx6qsabresd/mx6solo_4x_mt41j128.cfg,MX6SOLO,DEFAULT_FDT_FILE="imx6dl-sabresd.dtb",DDR_MB=512,SYS_USE_SPINOR,SYS_NOSMP="nosmp"
 mx6solosabresdandroid               arm         armv7       mx6qsabresd         freescale      mx6             mx6qsabresd:IMX_CONFIG=board/freescale/mx6qsabresd/mx6solo_4x_mt41j128.cfg,MX6SOLO,DEFAULT_FDT_FILE="imx6dl-sabresd.dtb",DDR_MB=512,SYS_USE_SPINOR,SYS_NOSMP="nosmp",ANDROID_SUPPORT
-mx6solosabreauto             arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6solo.cfg,MX6SOLO,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=1024,SYS_USE_SPINOR,SYS_NOSMP="nosmp"
+mx6solosabreauto             arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6solo.cfg,MX6SOLO,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=1024,SYS_NOSMP="nosmp"
 mx6solosabreauto_spinor      arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6solo.cfg,MX6SOLO,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=1024,SYS_BOOT_SPINOR,SYS_NOSMP="nosmp"
 mx6solosabreauto_eimnor      arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6solo.cfg,MX6SOLO,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=1024,SYS_BOOT_EIMNOR,SYS_NOSMP="nosmp"
 mx6solosabreauto_nand        arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6solo.cfg,MX6SOLO,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=1024,SYS_BOOT_NAND,SYS_NOSMP="nosmp"
-mx6solosabreautoandroid            arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6solo.cfg,MX6SOLO,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=1024,SYS_USE_SPINOR,SYS_NOSMP="nosmp",ANDROID_SUPPORT
+mx6solosabreautoandroid            arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6solo.cfg,MX6SOLO,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=1024,SYS_NOSMP="nosmp",ANDROID_SUPPORT
 mx6solosabreautoandroid_nand   arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/mx6solo.cfg,MX6SOLO,DEFAULT_FDT_FILE="imx6dl-sabreauto.dtb",DDR_MB=1024,SYS_BOOT_NAND,SYS_NOSMP="nosmp",ANDROID_SUPPORT
 mx6slevk                     arm         armv7       mx6slevk            freescale      mx6		mx6slevk:IMX_CONFIG=board/freescale/mx6slevk/imximage.cfg,MX6SL
 mx6slevkandroid          arm         armv7       mx6slevk            freescale      mx6		mx6slevk:IMX_CONFIG=board/freescale/mx6slevk/imximage.cfg,MX6SL,ANDROID_SUPPORT
diff --git a/include/configs/mx6qsabreauto.h b/include/configs/mx6qsabreauto.h
index b56f93e..3a078af 100644
--- a/include/configs/mx6qsabreauto.h
+++ b/include/configs/mx6qsabreauto.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012-2013 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012-2014 Freescale Semiconductor, Inc.
  *
  * Configuration settings for the Freescale i.MX6Q SabreAuto board.
  *
@@ -17,22 +17,33 @@
 #define CONFIG_CONSOLE_DEV		"ttymxc3"
 #define CONFIG_MMCROOT			"/dev/mmcblk0p2"
 
+#define CONFIG_SYS_USE_NAND
+
+#include "mx6qsabre_common.h"
+#include <asm/imx-common/gpio.h>
+
+/*Since the pin conflicts on EIM D18, disable the USB host if the NOR flash is enabled */
+#if !defined(CONFIG_SYS_USE_SPINOR) && !defined(CONFIG_SYS_USE_EIMNOR)
 /* USB Configs */
 #define CONFIG_CMD_USB
 #define CONFIG_USB_EHCI
 #define CONFIG_USB_EHCI_MX6
 #define CONFIG_USB_STORAGE
+#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
 #define CONFIG_USB_HOST_ETHER
 #define CONFIG_USB_ETHER_ASIX
-#define CONFIG_USB_MAX_CONTROLLER_COUNT 2
-#define CONFIG_EHCI_HCD_INIT_AFTER_RESET	/* For OTG port */
-#define CONFIG_MXC_USB_PORTSC	(PORT_PTS_UTMI | PORT_PTS_PTW)
-#define CONFIG_MXC_USB_FLAGS	0
+#define CONFIG_MXC_USB_PORTSC  (PORT_PTS_UTMI | PORT_PTS_PTW)
+#define CONFIG_MXC_USB_FLAGS   0
+#define CONFIG_USB_MAX_CONTROLLER_COUNT 2 /* Enabled USB controller number */
 
-#define CONFIG_SYS_USE_NAND
+/* Enable multiple I2C bus support*/
+#define CONFIG_I2C_MULTI_BUS
 
-#include "mx6qsabre_common.h"
-#include <asm/imx-common/gpio.h>
+/* MAX7310 configs*/
+#define CONFIG_MAX7310_IOEXP
+#define CONFIG_IOEXP_DEVICES_NUM 3
+#define CONFIG_IOEXP_DEV_PINS_NUM 8
+#endif
 
 #define CONFIG_SYS_FSL_USDHC_NUM	2
 #define CONFIG_SYS_MMC_ENV_DEV		0