[U-Boot] [PATCH v1 2/2] odroid: usb: add support for usb host including ethernet
Suriyan Ramasami
suriyan.r at gmail.com
Thu Oct 2 15:45:59 CEST 2014
This change adds support for enabling the USB host features of the board.
This includes the USB3503A hub and the SMC LAN9730 ethernet controller
as well.
Credit goes to Tushar Behera (Linaro) for the function set_usb_ethaddr().
Signed-off-by: Suriyan Ramasami <suriyan.r at gmail.com>
---
arch/arm/cpu/armv7/exynos/power.c | 26 +++++++++++++++
arch/arm/dts/exynos4412-odroid.dts | 11 +++++++
arch/arm/include/asm/arch-exynos/cpu.h | 2 ++
arch/arm/include/asm/arch-exynos/ehci.h | 13 ++++++++
arch/arm/include/asm/arch-exynos/power.h | 7 ++++
board/samsung/odroid/odroid.c | 55 ++++++++++++++++++++++++++++++++
drivers/usb/host/ehci-exynos.c | 52 +++++++++++++++++++++++++-----
include/configs/odroid.h | 13 ++++++++
8 files changed, 171 insertions(+), 8 deletions(-)
diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c
index e1ab3d6..6578a07 100644
--- a/arch/arm/cpu/armv7/exynos/power.c
+++ b/arch/arm/cpu/armv7/exynos/power.c
@@ -53,10 +53,36 @@ void exynos5_set_usbhost_phy_ctrl(unsigned int enable)
}
}
+void exynos4412_set_usbhost_phy_ctrl(unsigned int enable)
+{
+ struct exynos4412_power *power =
+ (struct exynos4412_power *)samsung_get_base_power();
+
+ if (enable) {
+ /* Enabling USBHOST_PHY */
+ setbits_le32(&power->usbhost_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ setbits_le32(&power->hsic1_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ setbits_le32(&power->hsic2_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ } else {
+ /* Disabling USBHOST_PHY */
+ clrbits_le32(&power->usbhost_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ clrbits_le32(&power->hsic1_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ clrbits_le32(&power->hsic2_phy_control,
+ POWER_USB_HOST_PHY_CTRL_EN);
+ }
+}
+
void set_usbhost_phy_ctrl(unsigned int enable)
{
if (cpu_is_exynos5())
exynos5_set_usbhost_phy_ctrl(enable);
+ else if (proid_is_exynos4412())
+ exynos4412_set_usbhost_phy_ctrl(enable);
}
static void exynos5_set_usbdrd_phy_ctrl(unsigned int enable)
diff --git a/arch/arm/dts/exynos4412-odroid.dts b/arch/arm/dts/exynos4412-odroid.dts
index 24d0bf1..8da8568 100644
--- a/arch/arm/dts/exynos4412-odroid.dts
+++ b/arch/arm/dts/exynos4412-odroid.dts
@@ -67,4 +67,15 @@
div = <0x3>;
index = <4>;
};
+
+ ehci at 12580000 {
+ compatible = "samsung,exynos-ehci";
+ reg = <0x12580000 0x100>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ phy {
+ compatible = "samsung,exynos-usb-phy";
+ reg = <0x125B0000 0x100>;
+ };
+ };
};
diff --git a/arch/arm/include/asm/arch-exynos/cpu.h b/arch/arm/include/asm/arch-exynos/cpu.h
index ba71714..fda21fb 100644
--- a/arch/arm/include/asm/arch-exynos/cpu.h
+++ b/arch/arm/include/asm/arch-exynos/cpu.h
@@ -18,6 +18,8 @@
#define EXYNOS4_GPIO_PART3_BASE 0x03860000
#define EXYNOS4_PRO_ID 0x10000000
+#define EXYNOS4_GUID_LOW 0x10000014
+#define EXYNOS4_GUID_HIGH 0x10000018
#define EXYNOS4_SYSREG_BASE 0x10010000
#define EXYNOS4_POWER_BASE 0x10020000
#define EXYNOS4_SWRESET 0x10020400
diff --git a/arch/arm/include/asm/arch-exynos/ehci.h b/arch/arm/include/asm/arch-exynos/ehci.h
index d2d70bd..3800fa9 100644
--- a/arch/arm/include/asm/arch-exynos/ehci.h
+++ b/arch/arm/include/asm/arch-exynos/ehci.h
@@ -12,6 +12,13 @@
#define CLK_24MHZ 5
+#define PHYPWR_NORMAL_MASK_PHY0 (0x39 << 0)
+#define PHYPWR_NORMAL_MASK_PHY1 (0x7 << 6)
+#define PHYPWR_NORMAL_MASK_HSIC0 (0x7 << 9)
+#define PHYPWR_NORMAL_MASK_HSIC1 (0x7 << 12)
+#define RSTCON_HOSTPHY_SWRST (0xf << 3)
+#define RSTCON_SWRST (0x1 << 0)
+
#define HOST_CTRL0_PHYSWRSTALL (1 << 31)
#define HOST_CTRL0_COMMONON_N (1 << 9)
#define HOST_CTRL0_SIDDQ (1 << 6)
@@ -61,6 +68,12 @@ struct exynos_usb_phy {
unsigned int usbotgtune;
};
+struct exynos4412_usb_phy {
+ unsigned int usbphyctrl;
+ unsigned int usbphyclk;
+ unsigned int usbphyrstcon;
+};
+
/* Switch on the VBUS power. */
int board_usb_vbus_init(void);
diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h
index e8a98a5..3f97b31 100644
--- a/arch/arm/include/asm/arch-exynos/power.h
+++ b/arch/arm/include/asm/arch-exynos/power.h
@@ -210,6 +210,13 @@ struct exynos4_power {
unsigned int gps_alive_option;
};
+struct exynos4412_power {
+ unsigned char res1[0x0704];
+ unsigned int usbhost_phy_control;
+ unsigned int hsic1_phy_control;
+ unsigned int hsic2_phy_control;
+};
+
struct exynos5_power {
unsigned int om_stat;
unsigned char res1[0x18];
diff --git a/board/samsung/odroid/odroid.c b/board/samsung/odroid/odroid.c
index fd5d2d2..4764a71 100644
--- a/board/samsung/odroid/odroid.c
+++ b/board/samsung/odroid/odroid.c
@@ -453,9 +453,64 @@ struct s3c_plat_otg_data s5pc210_otg_data = {
.usb_phy_ctrl = EXYNOS4X12_USBPHY_CONTROL,
.usb_flags = PHY0_SLEEP,
};
+#endif
+
+#if defined(CONFIG_USB_GADGET) || defined(CONFIG_CMD_USB)
+
+#ifdef CONFIG_CMD_USB
+static void set_usb_ethaddr(void)
+{
+ int i;
+ uchar mac[6];
+ unsigned int guid_high = readl(EXYNOS4_GUID_HIGH);
+ unsigned int guid_low = readl(EXYNOS4_GUID_LOW);
+
+ for (i = 0; i < 2; i++)
+ mac[i] = (guid_high >> (8 * (1 - i))) & 0xFF;
+
+ for (i = 0; i < 4; i++)
+ mac[i+2] = (guid_low >> (8 * (3 - i))) & 0xFF;
+
+ /* mark it as not multicast and outside official 80211 MAC namespace */
+ mac[0] = (mac[0] & ~0x1) | 0x2;
+
+ eth_setenv_enetaddr("ethaddr", mac);
+ eth_setenv_enetaddr("usbethaddr", mac);
+}
+#endif
int board_usb_init(int index, enum usb_init_type init)
{
+#ifdef CONFIG_CMD_USB
+ struct pmic *p_pmic;
+
+ /* Set Ref freq 0 => 24MHz, 1 => 26MHz*/
+ /* Odroid Us have it at 24MHz, Odroid Xs at 26MHz */
+ if (gd->board_type == ODROID_TYPE_U3)
+ gpio_direction_output(EXYNOS4X12_GPIO_X30, 0);
+ else
+ gpio_direction_output(EXYNOS4X12_GPIO_X30, 1);
+
+ /* Disconnect, Reset, Connect */
+ gpio_direction_output(EXYNOS4X12_GPIO_X34, 0);
+ gpio_direction_output(EXYNOS4X12_GPIO_X35, 0);
+ gpio_direction_output(EXYNOS4X12_GPIO_X35, 1);
+ gpio_direction_output(EXYNOS4X12_GPIO_X34, 1);
+
+ /* Power off and on BUCK8 for LAN9730 */
+ debug("LAN9730 - Turning power buck 8 OFF and ON.\n");
+
+ p_pmic = pmic_get("MAX77686_PMIC");
+ if (p_pmic && !pmic_probe(p_pmic)) {
+ max77686_set_buck_mode(p_pmic, 8, OPMODE_OFF);
+ max77686_set_buck_voltage(p_pmic, 8, 750000);
+ max77686_set_buck_voltage(p_pmic, 8, 3300000);
+ max77686_set_buck_mode(p_pmic, 8, OPMODE_ON);
+ }
+
+ set_usb_ethaddr();
+#endif
+
debug("USB_udc_probe\n");
return s3c_udc_probe(&s5pc210_otg_data);
}
diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
index edd91a8..91f3c72 100644
--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -19,6 +19,7 @@
#include <asm/gpio.h>
#include <asm-generic/errno.h>
#include <linux/compat.h>
+#include <power/max77686_pmic.h>
#include "ehci.h"
/* Declare global data pointer */
@@ -85,15 +86,10 @@ static int exynos_usb_parse_dt(const void *blob, struct exynos_ehci *exynos)
}
#endif
-/* Setup the EHCI host controller. */
-static void setup_usb_phy(struct exynos_usb_phy *usb)
+static void exynos5_setup_usb_phy(struct exynos_usb_phy *usb)
{
u32 hsic_ctrl;
- set_usbhost_mode(USB20_PHY_CFG_HOST_LINK_EN);
-
- set_usbhost_phy_ctrl(POWER_USB_HOST_PHY_CTRL_EN);
-
clrbits_le32(&usb->usbphyctrl0,
HOST_CTRL0_FSEL_MASK |
HOST_CTRL0_COMMONON_N |
@@ -150,8 +146,32 @@ static void setup_usb_phy(struct exynos_usb_phy *usb)
EHCICTRL_ENAINCR16);
}
-/* Reset the EHCI host controller. */
-static void reset_usb_phy(struct exynos_usb_phy *usb)
+static void exynos4412_setup_usb_phy(struct exynos4412_usb_phy *usb)
+{
+ writel(CLK_24MHZ, &usb->usbphyclk);
+
+ clrbits_le32(&usb->usbphyctrl, (PHYPWR_NORMAL_MASK_HSIC0 |
+ PHYPWR_NORMAL_MASK_HSIC1 | PHYPWR_NORMAL_MASK_PHY1 |
+ PHYPWR_NORMAL_MASK_PHY0));
+
+ setbits_le32(&usb->usbphyrstcon, (RSTCON_HOSTPHY_SWRST | RSTCON_SWRST));
+ udelay(10);
+ clrbits_le32(&usb->usbphyrstcon, (RSTCON_HOSTPHY_SWRST | RSTCON_SWRST));
+}
+
+static void setup_usb_phy(struct exynos_usb_phy *usb)
+{
+ set_usbhost_mode(USB20_PHY_CFG_HOST_LINK_EN);
+
+ set_usbhost_phy_ctrl(POWER_USB_HOST_PHY_CTRL_EN);
+
+ if (cpu_is_exynos5())
+ exynos5_setup_usb_phy(usb);
+ else if (proid_is_exynos4412())
+ exynos4412_setup_usb_phy((struct exynos4412_usb_phy *)usb);
+}
+
+static void exynos5_reset_usb_phy(struct exynos_usb_phy *usb)
{
u32 hsic_ctrl;
@@ -171,6 +191,22 @@ static void reset_usb_phy(struct exynos_usb_phy *usb)
setbits_le32(&usb->hsicphyctrl1, hsic_ctrl);
setbits_le32(&usb->hsicphyctrl2, hsic_ctrl);
+}
+
+static void exynos4412_reset_usb_phy(struct exynos4412_usb_phy *usb)
+{
+ setbits_le32(&usb->usbphyctrl, (PHYPWR_NORMAL_MASK_HSIC0 |
+ PHYPWR_NORMAL_MASK_HSIC1 | PHYPWR_NORMAL_MASK_PHY1 |
+ PHYPWR_NORMAL_MASK_PHY0));
+}
+
+/* Reset the EHCI host controller. */
+static void reset_usb_phy(struct exynos_usb_phy *usb)
+{
+ if (cpu_is_exynos5())
+ exynos5_reset_usb_phy(usb);
+ else if (proid_is_exynos4412())
+ exynos4412_reset_usb_phy((struct exynos4412_usb_phy *)usb);
set_usbhost_phy_ctrl(POWER_USB_HOST_PHY_CTRL_DISABLE);
}
diff --git a/include/configs/odroid.h b/include/configs/odroid.h
index b616ac2..3fc0508 100644
--- a/include/configs/odroid.h
+++ b/include/configs/odroid.h
@@ -200,6 +200,19 @@
#define CONFIG_CMD_GPIO
+/* USB */
+#define CONFIG_CMD_USB
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_EXYNOS
+#define CONFIG_USB_STORAGE
+
+#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS 3
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_DHCP
+#define CONFIG_USB_HOST_ETHER
+#define CONFIG_USB_ETHER_SMSC95XX
+
/*
* Supported Odroid boards: X3, U3
* TODO: Add Odroid X support
--
1.9.1
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