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Message-ID: <1363088606-2692-5-git-send-email-rogerq@ti.com>
Date: Tue, 12 Mar 2013 13:43:06 +0200
From: Roger Quadros <rogerq@...com>
To: <tony@...mide.com>
CC: <balbi@...com>, <b-cousson@...com>, <linux-kernel@...r.kernel.org>,
<linux-usb@...r.kernel.org>, <linux-omap@...r.kernel.org>,
<devicetree-discuss@...ts.ozlabs.org>, <rogerq@...com>
Subject: [PATCH 04/24] ARM: OMAP3: Beagle: Adapt to ehci-omap changes
Add platform device for 'nop-usb-xceiv'. This will be used as a
PHY for HS USB Port 2, so provide binding information for it.
Model RESET and Power for HS USB Port 2 as GPIO fixed regulators
and link them to the 'nop-usb-xceiv' PHY.
NOTE: Register the PHY device only after the power regulator has
been registered else power won't be enabled for the Host port.
Signed-off-by: Roger Quadros <rogerq@...com>
Acked-by: Felipe Balbi <balbi@...com>
---
arch/arm/mach-omap2/board-omap3beagle.c | 93 +++++++++++++++++++++++++++---
1 files changed, 83 insertions(+), 10 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index c3558f9..a3d5e13 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -35,7 +35,9 @@
#include <linux/usb/phy.h>
#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
#include <linux/i2c/twl.h>
+#include <linux/usb/phy.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -277,6 +279,76 @@ static struct regulator_consumer_supply beagle_vsim_supply[] = {
static struct gpio_led gpio_leds[];
+/* PHY device on HS USB Port 2 i.e. nop_usb_xceiv.2 */
+static struct platform_device hsusb2_phy_device = {
+ .name = "nop_usb_xceiv",
+ .id = 2,
+};
+
+/* Regulator for HS USB Port 2 PHY reset */
+static struct regulator_consumer_supply hsusb2_reset_supplies[] = {
+ /* Link PHY device to reset supply so it gets used in the PHY driver */
+ REGULATOR_SUPPLY("reset", "nop_usb_xceiv.2"),
+};
+
+static struct regulator_init_data hsusb2_reset_data = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .consumer_supplies = hsusb2_reset_supplies,
+ .num_consumer_supplies = ARRAY_SIZE(hsusb2_reset_supplies),
+};
+
+static struct fixed_voltage_config hsusb2_reset_config = {
+ .supply_name = "hsusb2_reset",
+ .microvolts = 3300000,
+ .gpio = 147,
+ .startup_delay = 70000, /* 70msec */
+ .enable_high = 1,
+ .enabled_at_boot = 0, /* keep in RESET */
+ .init_data = &hsusb2_reset_data,
+};
+
+static struct platform_device hsusb2_reset_device = {
+ .name = "reg-fixed-voltage",
+ .id = PLATFORM_DEVID_AUTO,
+ .dev = {
+ .platform_data = &hsusb2_reset_config,
+ },
+};
+
+/* Regulator for HS USB Port 2 supply */
+static struct regulator_consumer_supply hsusb2_power_supplies[] = {
+/* Link PHY device to power supply so it gets enabled in the PHY driver */
+ REGULATOR_SUPPLY("vcc", "nop_usb_xceiv.2"),
+};
+
+static struct regulator_init_data hsusb2_power_data = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .consumer_supplies = hsusb2_power_supplies,
+ .num_consumer_supplies = ARRAY_SIZE(hsusb2_power_supplies),
+};
+
+static struct fixed_voltage_config hsusb2_power_config = {
+ .supply_name = "hsusb2_vbus",
+ .microvolts = 5000000,
+ .gpio = -1, /* set at runtime in beagle_twl_gpio_setup */
+ .startup_delay = 70000, /* 70msec */
+ .enable_high = 0, /* updated in omap3_beagle_init_rev() */
+ .enabled_at_boot = 0,
+ .init_data = &hsusb2_power_data,
+};
+
+static struct platform_device hsusb2_power_device = {
+ .name = "reg-fixed-voltage",
+ .id = PLATFORM_DEVID_AUTO,
+ .dev = {
+ .platform_data = &hsusb2_power_config,
+ },
+};
+
static int beagle_twl_gpio_setup(struct device *dev,
unsigned gpio, unsigned ngpio)
{
@@ -318,8 +390,12 @@ static int beagle_twl_gpio_setup(struct device *dev,
}
dvi_panel.power_down_gpio = beagle_config.dvi_pd_gpio;
- gpio_request_one(gpio + TWL4030_GPIO_MAX, beagle_config.usb_pwr_level,
- "nEN_USB_PWR");
+ /* TWL4030_GPIO_MAX controls HS USB Port 2 power */
+ hsusb2_power_config.gpio = gpio + TWL4030_GPIO_MAX;
+ hsusb2_power_config.enable_high = beagle_config.usb_pwr_level;
+
+ platform_device_register(&hsusb2_power_device);
+ platform_device_register(&hsusb2_phy_device);
return 0;
}
@@ -450,18 +526,11 @@ static struct platform_device *omap3_beagle_devices[] __initdata = {
&keys_gpio,
&madc_hwmon,
&leds_pwm,
+ &hsusb2_reset_device,
};
static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
-
- .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
- .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
-
- .phy_reset = true,
- .reset_gpio_port[0] = -EINVAL,
- .reset_gpio_port[1] = 147,
- .reset_gpio_port[2] = -EINVAL
};
#ifdef CONFIG_OMAP_MUX
@@ -543,7 +612,11 @@ static void __init omap3_beagle_init(void)
usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
usb_musb_init(NULL);
+
+ /* PHY on HSUSB Port 2 i.e. index 1 */
+ usb_bind_phy("ehci-omap.0", 1, "nop_usb_xceiv.2");
usbhs_init(&usbhs_bdata);
+
board_nand_init(omap3beagle_nand_partitions,
ARRAY_SIZE(omap3beagle_nand_partitions), NAND_CS,
NAND_BUSWIDTH_16, NULL);
--
1.7.4.1
--
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