[U-Boot] [PATCH 2/2] exynos5: arndale: Add network support

[Inderpal Singh]

From: Chander Kashyap <chander.kashyap at linaro.org>

Arndale board has AX88760, which is USB 2.0 Hub & USB 2.0 Ethernet Combo
controller, connected to HSIC Phy of USB host controller via USB3503 hub.

This patch implements a board specific board_usb_init function in ehci driver
to perform reset sequence for USB3503 hub and enables the relevant config
options for network to work.

Signed-off-by: Inderpal Singh <inderpal.singh at linaro.org>
Signed-off-by: Chander Kashyap <chander.kashyap at linaro.org>
---
 board/samsung/arndale/arndale.c |   23 +++++++++++++++++++++++
 drivers/usb/host/ehci-exynos.c  |    9 +++++++++
 include/configs/arndale.h       |    6 ++++++
 3 files changed, 38 insertions(+)

diff --git a/board/samsung/arndale/arndale.c b/board/samsung/arndale/arndale.c
index 052fecd..44f20b9 100644
--- a/board/samsung/arndale/arndale.c
+++ b/board/samsung/arndale/arndale.c
@@ -7,10 +7,23 @@
 #include <common.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/dwmmc.h>
+#include <asm/arch/gpio.h>
 #include <asm/arch/power.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#ifdef CONFIG_USB_EHCI_EXYNOS
+void board_usb_init(int value)
+{
+	struct exynos5_gpio_part1 *gpio = (struct exynos5_gpio_part1 *)
+						samsung_get_base_gpio_part1();
+
+	/* Configure gpios for usb 3503 hub's reset and connect */
+	s5p_gpio_direction_output(&gpio->x3, 5, value);
+	s5p_gpio_direction_output(&gpio->d1, 7, value);
+}
+#endif
+
 int board_init(void)
 {
 	gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
@@ -91,6 +104,16 @@ int board_early_init_f(void)
 }
 #endif
 
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+#ifdef CONFIG_PREBOOT
+	setenv("preboot", CONFIG_PREBOOT);
+	setenv("usbethaddr", "00:40:5c:26:0a:5b");
+#endif
+}
+#endif
+
 #ifdef CONFIG_DISPLAY_BOARDINFO
 int checkboard(void)
 {
diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
index 50fbf36..cba450e 100644
--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -170,6 +170,11 @@ static void reset_usb_phy(struct exynos_usb_phy *usb)
 	set_usbhost_phy_ctrl(POWER_USB_HOST_PHY_CTRL_DISABLE);
 }
 
+inline void __board_usb_init(int value)
+{
+}
+void board_usb_init(int) __attribute__((weak, alias("__board_usb_init")));
+
 /*
  * EHCI-initialization
  * Create the appropriate control structures to manage
@@ -189,8 +194,12 @@ int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 	ctx->hcd = (struct ehci_hccr *)samsung_get_base_usb_ehci();
 #endif
 
+	board_usb_init(0);
+
 	setup_usb_phy(ctx->usb);
 
+	board_usb_init(1);
+
 	*hccr = ctx->hcd;
 	*hcor = (struct ehci_hcor *)((uint32_t) *hccr
 				+ HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
diff --git a/include/configs/arndale.h b/include/configs/arndale.h
index ed44a04..ea24661 100644
--- a/include/configs/arndale.h
+++ b/include/configs/arndale.h
@@ -116,6 +116,10 @@
 #define CONFIG_USB_EHCI_EXYNOS
 #define CONFIG_USB_STORAGE
 
+#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS	3
+#define CONFIG_USB_HOST_ETHER
+#define CONFIG_USB_ETHER_ASIX
+#define CONFIG_PREBOOT                 "usb start"
 /* MMC SPL */
 #define CONFIG_SPL
 #define COPY_BL2_FNPTR_ADDR	0x02020030
@@ -179,6 +183,8 @@
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_SECURE_BL1_ONLY
 
+#define CONFIG_BOARD_LATE_INIT
+
 /* Secure FW size configuration */
 #ifdef	CONFIG_SECURE_BL1_ONLY
 #define	CONFIG_SEC_FW_SIZE		(8 << 10)	/* 8KB */
-- 
1.7.9.5