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Based on
From 0d4941a59648e16d99624cf16812d5ae83986187 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Fri, 6 Feb 2009 15:42:26 +0100
Subject: [PATCH 026/101] [ARM] MX35: Add PCM043 board support
add USB support
Signed-off-by: Jan Weitzel <J.Weitzel@phytec.de>
---
Index: linux-2.6.31.6/arch/arm/mach-mx3/pcm043.c
===================================================================
--- linux-2.6.31.6.orig/arch/arm/mach-mx3/pcm043.c 2009-12-10 11:59:35.364772725 +0100
+++ linux-2.6.31.6/arch/arm/mach-mx3/pcm043.c 2009-12-10 13:45:21.484650731 +0100
@@ -28,6 +28,7 @@
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
+#include <linux/fsl_devices.h>
#include <linux/delay.h>
#include <asm/mach-types.h>
@@ -44,6 +45,7 @@
#include <mach/iomux-mx35.h>
#include <mach/ipu.h>
#include <mach/mx3fb.h>
+#include <mach/mxc_ehci.h>
#include <mach/audmux.h>
#include <mach/ssi.h>
@@ -207,6 +209,9 @@
MX35_PAD_D3_REV__IPU_DISPB_D3_REV,
MX35_PAD_D3_CLS__IPU_DISPB_D3_CLS,
MX35_PAD_D3_SPL__IPU_DISPB_D3_SPL,
+ /* USB host */
+ MX35_PAD_I2C2_CLK__USB_TOP_USBH2_PWR,
+ MX35_PAD_I2C2_DAT__USB_TOP_USBH2_OC,
/* SSI */
MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS,
MX35_PAD_STXD4__AUDMUX_AUD4_TXD,
@@ -214,6 +219,66 @@
MX35_PAD_SCK4__AUDMUX_AUD4_TXC,
};
+static int pcm043_usbh1_init(struct platform_device *pdev)
+{
+ unsigned int tmp;
+
+ tmp = readl(IO_ADDRESS(MX35_OTG_BASE_ADDR) + 0x600);
+ tmp &= ~((3 << 21) | (1 << 2) | (1 << 16));
+ tmp |= (1 << 4) | (2 << 21) | (1 << 19) | (1 << 12) | (1 << 6) | (1 << 5);
+ writel(tmp, IO_ADDRESS(MX35_OTG_BASE_ADDR) + 0x600);
+
+ tmp = readl(IO_ADDRESS(MX35_OTG_BASE_ADDR) + 0x584);
+ tmp |= (3 << 30);
+ writel(tmp, IO_ADDRESS(MX35_OTG_BASE_ADDR) + 0x584);
+
+ return 0;
+}
+
+static struct mxc_usbh_platform_data usbh1_pdata = {
+ .init = pcm043_usbh1_init,
+};
+
+static int pcm043_otg_init(struct platform_device *pdev)
+{
+ unsigned int tmp;
+
+ tmp = readl(IO_ADDRESS(MX35_OTG_BASE_ADDR) + 0x600);
+ tmp &= ~(3 << 29);
+ tmp |= (2 << 29);
+ writel(tmp, IO_ADDRESS(MX35_OTG_BASE_ADDR) + 0x600);
+
+ tmp = readl(IO_ADDRESS(MX35_OTG_BASE_ADDR) + 0x184);
+ tmp &= ~(3 << 30);
+ writel(tmp, IO_ADDRESS(MX35_OTG_BASE_ADDR) + 0x184);
+
+ return 0;
+}
+
+static struct mxc_usbh_platform_data otg_pdata = {
+ .init = pcm043_otg_init,
+};
+
+static struct fsl_usb2_platform_data usb_data = {
+ .operating_mode = FSL_USB2_DR_DEVICE,
+ .phy_mode = FSL_USB2_PHY_UTMI,
+};
+
+static int otg_mode_host;
+
+static int __init pcm043_otg_mode(char *options)
+{
+ if (!strcmp(options, "host"))
+ otg_mode_host = 1;
+ else if (!strcmp(options, "device"))
+ otg_mode_host = 0;
+ else
+ pr_info("pcm043_otg_mode neither \"host\" nor \"device\". "
+ "Defaulting to device\n");
+ return 0;
+}
+__setup("pcm043_otg_mode=", pcm043_otg_mode);
+
#define AC97_GPIO_TXFS (1 * 32 + 31)
#define AC97_GPIO_TXD (1 * 32 + 28)
#define AC97_GPIO_RESET (1 * 32 + 0)
@@ -299,6 +364,8 @@
*/
static void __init mxc_board_init(void)
{
+ unsigned int tmp;
+
mxc_iomux_v3_setup_multiple_pads(pcm043_pads, ARRAY_SIZE(pcm043_pads));
mxc_audmux_v2_configure_port(3,
@@ -329,6 +396,17 @@
mxc_register_device(&mx3_ipu, &mx3_ipu_data);
mxc_register_device(&mx3_fb, &mx3fb_pdata);
+
+ tmp = readl(IO_ADDRESS(MX35_OTG_BASE_ADDR) + 0x600);
+ tmp &= ~(3 << 29);
+ tmp |= (2 << 29);
+ writel(tmp, IO_ADDRESS(MX35_OTG_BASE_ADDR) + 0x600);
+
+ mxc_register_device(&mxc_usbh1, &usbh1_pdata);
+ if (otg_mode_host)
+ mxc_register_device(&mxc_otg, &otg_pdata);
+ else
+ mxc_register_device(&mxc_otg_udc_device, &usb_data);
}
static void __init pcm043_timer_init(void)
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