ARM: pxa: add U2D controller and ULPI driver for pxa3xx

USB2.0 Device Controller (U2DC) which is found in Marvell PXA3xx. U2DC supports both High and Full speed modes. PXA320 and PXA300 U2DC supports only UTMI interface. PXA310 U2DC supports only ULPI interface and has the OTG capability. U2D Controller ULPI driver introduced in this patch supports only the PXA310 USB Host via the ULPI. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
git-mirror · Oct 8, 2010 · 69f22be · 69f22be
1 parent cb655d0
commit 69f22be
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Showing 7 changed files with 462 additions and 2 deletions.
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
@@ -643,6 +643,7 @@ config CPU_PXA300
 config CPU_PXA310
 	bool
 	select CPU_PXA300
+	select PXA310_ULPI if USB_ULPI
 	help
 	  PXA310 (codename Monahans-LV)
 
@@ -698,4 +699,7 @@ config PXA_HAVE_BOARD_IRQS
 config PXA_HAVE_ISA_IRQS
 	bool
 
+config PXA310_ULPI
+	bool
+
 endif
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
@@ -18,7 +18,7 @@ endif
 # SoC-specific code
 obj-$(CONFIG_PXA25x)		+= mfp-pxa2xx.o pxa2xx.o pxa25x.o
 obj-$(CONFIG_PXA27x)		+= mfp-pxa2xx.o pxa2xx.o pxa27x.o
-obj-$(CONFIG_PXA3xx)		+= mfp-pxa3xx.o pxa3xx.o smemc.o
+obj-$(CONFIG_PXA3xx)		+= mfp-pxa3xx.o pxa3xx.o smemc.o pxa3xx-ulpi.o
 obj-$(CONFIG_CPU_PXA300)	+= pxa300.o
 obj-$(CONFIG_CPU_PXA320)	+= pxa320.o
 obj-$(CONFIG_CPU_PXA930)	+= pxa930.o

diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
@@ -6,6 +6,7 @@
 
 #include <asm/pmu.h>
 #include <mach/udc.h>
+#include <mach/pxa3xx-u2d.h>
 #include <mach/pxafb.h>
 #include <mach/mmc.h>
 #include <mach/irda.h>
@@ -134,6 +135,33 @@ struct platform_device pxa27x_device_udc = {
 	}
 };
 
+#ifdef CONFIG_PXA3xx
+static struct resource pxa3xx_u2d_resources[] = {
+	[0] = {
+		.start	= 0x54100000,
+		.end	= 0x54100fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_USB2,
+		.end	= IRQ_USB2,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device pxa3xx_device_u2d = {
+	.name		= "pxa3xx-u2d",
+	.id		= -1,
+	.resource	= pxa3xx_u2d_resources,
+	.num_resources	= ARRAY_SIZE(pxa3xx_u2d_resources),
+};
+
+void __init pxa3xx_set_u2d_info(struct pxa3xx_u2d_platform_data *info)
+{
+	pxa_register_device(&pxa3xx_device_u2d, info);
+}
+#endif /* CONFIG_PXA3xx */
+
 static struct resource pxafb_resources[] = {
 	[0] = {
 		.start	= 0x44000000,

diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h
@@ -4,6 +4,7 @@ extern struct platform_device pxa3xx_device_mci2;
 extern struct platform_device pxa3xx_device_mci3;
 extern struct platform_device pxa25x_device_udc;
 extern struct platform_device pxa27x_device_udc;
+extern struct platform_device pxa3xx_device_u2d;
 extern struct platform_device pxa_device_fb;
 extern struct platform_device pxa_device_ffuart;
 extern struct platform_device pxa_device_btuart;

diff --git a/arch/arm/mach-pxa/include/mach/pxa3xx-u2d.h b/arch/arm/mach-pxa/include/mach/pxa3xx-u2d.h
@@ -0,0 +1,35 @@
+/*
+ * PXA3xx U2D header
+ *
+ * Copyright (C) 2010 CompuLab Ltd.
+ *
+ * Igor Grinberg <grinberg@compulab.co.il>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __PXA310_U2D__
+#define __PXA310_U2D__
+
+#include <linux/usb/ulpi.h>
+
+struct pxa3xx_u2d_platform_data {
+
+#define ULPI_SER_6PIN	(1 << 0)
+#define ULPI_SER_3PIN	(1 << 1)
+	unsigned int ulpi_mode;
+
+	int (*init)(struct device *);
+	void (*exit)(struct device *);
+};
+
+
+/* Start PXA3xx U2D host */
+int pxa3xx_u2d_start_hc(struct usb_bus *host);
+/* Stop PXA3xx U2D host */
+void pxa3xx_u2d_stop_hc(struct usb_bus *host);
+
+extern void pxa3xx_set_u2d_info(struct pxa3xx_u2d_platform_data *info);
+
+#endif /* __PXA310_U2D__ */