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Commit bc24ed4f authored by Stephen Warren's avatar Stephen Warren Committed by Olof Johansson
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ARM: Tegra: Seaboard: Add USB devices 



Seaboard has a couple of external USB ports. Add the platform devices and
GPIO infra-structure to enable these.

I tested both ports with a mouse on Seaboard non-clamshell.

This change is extracted from code in the ChromeOS 2.6.38 kernel.

Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parent a697e694

arch/arm/mach-tegra/board-seaboard-pinmux.c

+1 −0
Original line number Diff line number Diff line
@@ -168,6 +168,7 @@ static struct tegra_gpio_table gpio_table[] = { 
	{ .gpio = TEGRA_GPIO_POWERKEY,		.enable = true },

	{ .gpio = TEGRA_GPIO_ISL29018_IRQ,	.enable = true },

	{ .gpio = TEGRA_GPIO_CDC_IRQ,		.enable = true },

	{ .gpio = TEGRA_GPIO_USB1,		.enable = true },

};



void __init seaboard_pinmux_init(void)

arch/arm/mach-tegra/board-seaboard.c

+27 −0
Original line number Diff line number Diff line
@@ -69,6 +69,8 @@ static __initdata struct tegra_clk_init_table seaboard_clk_init_table[] = { 
	{ "pll_a_out0",	"pll_a",	11289600,	true },

	{ "cdev1",	NULL,		0,		true },

	{ "i2s1",	"pll_a_out0",	11289600,	false},

	{ "usbd",	"clk_m",	12000000,	true},

	{ "usb3",	"clk_m",	12000000,	true},

	{ NULL,		NULL,		0,		0},

};
@@ -182,6 +184,29 @@ static struct i2c_board_info __initdata wm8903_device = { 
	.irq = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_CDC_IRQ),

};



static int seaboard_ehci_init(void)

{

	int gpio_status;



	gpio_status = gpio_request(TEGRA_GPIO_USB1, "VBUS_USB1");

	if (gpio_status < 0) {

		pr_err("VBUS_USB1 request GPIO FAILED\n");

		WARN_ON(1);

	}



	gpio_status = gpio_direction_output(TEGRA_GPIO_USB1, 1);

	if (gpio_status < 0) {

		pr_err("VBUS_USB1 request GPIO DIRECTION FAILED\n");

		WARN_ON(1);

	}

	gpio_set_value(TEGRA_GPIO_USB1, 1);



	platform_device_register(&tegra_ehci1_device);

	platform_device_register(&tegra_ehci3_device);



	return 0;

}



static void __init seaboard_i2c_init(void)

{

	gpio_request(TEGRA_GPIO_ISL29018_IRQ, "isl29018");
@@ -209,6 +234,8 @@ static void __init seaboard_common_init(void) 
	tegra_sdhci_device4.dev.platform_data = &sdhci_pdata4;



	platform_add_devices(seaboard_devices, ARRAY_SIZE(seaboard_devices));



	seaboard_ehci_init();

}



static void __init tegra_seaboard_init(void)