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Message-ID: <1359372631-8180-19-git-send-email-rogerq@ti.com>
Date: Mon, 28 Jan 2013 13:30:19 +0200
From: Roger Quadros <rogerq@...com>
To: <tony@...mide.com>
CC: <linux@....linux.org.uk>, <sameo@...ux.intel.com>, <balbi@...com>,
<stern@...land.harvard.edu>, <gregkh@...uxfoundation.org>,
<eballetbo@...il.com>, <javier@...hile0.org>,
<sshtylyov@...sta.com>, <linux-usb@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 18/30] ARM: OMAP: AM3517crane: Adapt to ehci-omap changes
Add platform device for 'nop-usb-xceiv'. This will be used as a
PHY for HS USB Port 1, so provide binding information for it.
Model RESET and Power for HS USB Port 1 as GPIO fixed regulators
and link them to the 'nop-usb-xceiv' PHY.
Signed-off-by: Roger Quadros <rogerq@...com>
---
arch/arm/mach-omap2/board-am3517crane.c | 95 +++++++++++++++++++++++++++----
1 files changed, 83 insertions(+), 12 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c
index 26f1916..1d25af6 100644
--- a/arch/arm/mach-omap2/board-am3517crane.c
+++ b/arch/arm/mach-omap2/board-am3517crane.c
@@ -20,6 +20,9 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/gpio.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
+#include <linux/usb/phy.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -40,15 +43,84 @@ static struct omap_board_mux board_mux[] __initdata = {
};
#endif
+/* PHY device on HS USB Port 1 i.e. nop_usb_xceiv.1 */
+static struct platform_device hsusb1_phy_device = {
+ .name = "nop_usb_xceiv",
+ .id = 1,
+};
+
+/* Regulator for HS USB Port 1 PHY reset */
+static struct regulator_consumer_supply hsusb1_reset_supplies[] = {
+ /* Link PHY device to reset supply so it gets used in the PHY driver */
+ REGULATOR_SUPPLY("reset", "nop_usb_xceiv.1"),
+};
+
+static struct regulator_init_data hsusb1_reset_data = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .consumer_supplies = hsusb1_reset_supplies,
+ .num_consumer_supplies = ARRAY_SIZE(hsusb1_reset_supplies),
+};
+
+static struct fixed_voltage_config hsusb1_reset_config = {
+ .supply_name = "hsusb1_reset",
+ .microvolts = 3300000,
+ .gpio = GPIO_USB_NRESET,
+ .startup_delay = 70000, /* 70msec */
+ .enable_high = 1,
+ .enabled_at_boot = 0, /* keep in RESET */
+ .init_data = &hsusb1_reset_data,
+};
+
+static struct platform_device hsusb1_reset_device = {
+ .name = "reg-fixed-voltage",
+ .id = PLATFORM_DEVID_AUTO,
+ .dev = {
+ .platform_data = &hsusb1_reset_config,
+ },
+};
+
+/* Regulator for HS USB Port 1 supply */
+static struct regulator_consumer_supply hsusb1_power_supplies[] = {
+/* Link PHY device to power supply so it gets enabled in the PHY driver */
+ REGULATOR_SUPPLY("vcc", "nop_usb_xceiv.1"),
+};
+
+static struct regulator_init_data hsusb1_power_data = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .consumer_supplies = hsusb1_power_supplies,
+ .num_consumer_supplies = ARRAY_SIZE(hsusb1_power_supplies),
+};
+
+static struct fixed_voltage_config hsusb1_power_config = {
+ .supply_name = "hsusb1_vbus",
+ .microvolts = 5000000,
+ .gpio = GPIO_USB_POWER,
+ .startup_delay = 70000, /* 70msec */
+ .enable_high = 1,
+ .enabled_at_boot = 0,
+ .init_data = &hsusb1_power_data,
+};
+
+static struct platform_device hsusb1_power_device = {
+ .name = "reg-fixed-voltage",
+ .id = PLATFORM_DEVID_AUTO,
+ .dev = {
+ .platform_data = &hsusb1_power_config,
+ },
+};
+
static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
- .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
- .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
+};
- .phy_reset = true,
- .reset_gpio_port[0] = GPIO_USB_NRESET,
- .reset_gpio_port[1] = -EINVAL,
- .reset_gpio_port[2] = -EINVAL
+static struct platform_device *am3517_crane_devices[] __initdata = {
+ &hsusb1_phy_device,
+ &hsusb1_reset_device,
+ &hsusb1_power_device,
};
static void __init am3517_crane_init(void)
@@ -72,12 +144,11 @@ static void __init am3517_crane_init(void)
return;
}
- ret = gpio_request_one(GPIO_USB_POWER, GPIOF_OUT_INIT_HIGH,
- "usb_ehci_enable");
- if (ret < 0) {
- pr_err("Can not request GPIO %d\n", GPIO_USB_POWER);
- return;
- }
+ platform_add_devices(am3517_crane_devices,
+ ARRAY_SIZE(am3517_crane_devices));
+
+ /* PHY on HSUSB Port 1 i.e. index 0 */
+ usb_bind_phy("ehci-omap.0", 0, "nop_usb_xceiv.1");
usbhs_init(&usbhs_bdata);
am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
--
1.7.4.1
--
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