ARM: mx25: dynamically allocate mxc-ehci devices

According to the reference manual of the i.MX25 the host controller uses an
offset of 0x200 not 0x400 as was specified in the resources for mxc_usbh2.

Needs-Testing: yes
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

arch/arm/mach-mx25/Kconfig

@@ -5,16 +5,18 @@ comment "MX25 platforms:"
 config MACH_MX25_3DS
 	bool "Support MX25PDK (3DS) Platform"
 	select IMX_HAVE_PLATFORM_IMX_UART
+	select IMX_HAVE_PLATFORM_MXC_EHCI
 	select IMX_HAVE_PLATFORM_MXC_NAND
 	select IMX_HAVE_PLATFORM_ESDHC
 
 config MACH_EUKREA_CPUIMX25
 	bool "Support Eukrea CPUIMX25 Platform"
+	select IMX_HAVE_PLATFORM_ESDHC
+	select IMX_HAVE_PLATFORM_FLEXCAN
 	select IMX_HAVE_PLATFORM_IMX_I2C
 	select IMX_HAVE_PLATFORM_IMX_UART
+	select IMX_HAVE_PLATFORM_MXC_EHCI
 	select IMX_HAVE_PLATFORM_MXC_NAND
-	select IMX_HAVE_PLATFORM_FLEXCAN
-	select IMX_HAVE_PLATFORM_ESDHC
 	select MXC_ULPI if USB_ULPI
 
 choice

arch/arm/mach-mx25/devices-imx25.h

@@ -39,6 +39,13 @@ extern const struct imx_imx_uart_1irq_data imx25_imx_uart_data[] __initconst;
 #define imx25_add_imx_uart3(pdata)	imx25_add_imx_uart(3, pdata)
 #define imx25_add_imx_uart4(pdata)	imx25_add_imx_uart(4, pdata)
 
+extern const struct imx_mxc_ehci_data imx25_mxc_ehci_otg_data __initconst;
+#define imx25_add_mxc_ehci_otg(pdata)	\
+	imx_add_mxc_ehci(&imx25_mxc_ehci_otg_data, pdata)
+extern const struct imx_mxc_ehci_data imx25_mxc_ehci_hs_data __initconst;
+#define imx25_add_mxc_ehci_hs(pdata)	\
+	imx_add_mxc_ehci(&imx25_mxc_ehci_hs_data, pdata)
+
 extern const struct imx_mxc_nand_data imx25_mxc_nand_data __initconst;
 #define imx25_add_mxc_nand(pdata)	\
 	imx_add_mxc_nand(&imx25_mxc_nand_data, pdata)

arch/arm/mach-mx25/devices.c

@@ -26,27 +26,16 @@ static u64 otg_dmamask = DMA_BIT_MASK(32);
 
 static struct resource mxc_otg_resources[] = {
 	{
-		.start = MX25_OTG_BASE_ADDR,
+		.start = MX25_USB_OTG_BASE_ADDR,
-		.end = MX25_OTG_BASE_ADDR + 0x1ff,
+		.end = MX25_USB_OTG_BASE_ADDR + 0x1ff,
 		.flags = IORESOURCE_MEM,
 	}, {
-		.start = 37,
+		.start = MX25_INT_USB_OTG,
-		.end = 37,
+		.end = MX25_INT_USB_OTG,
 		.flags = IORESOURCE_IRQ,
 	},
 };
 
-struct platform_device mxc_otg = {
-	.name = "mxc-ehci",
-	.id = 0,
-	.dev = {
-		.coherent_dma_mask = 0xffffffff,
-		.dma_mask = &otg_dmamask,
-	},
-	.resource = mxc_otg_resources,
-	.num_resources = ARRAY_SIZE(mxc_otg_resources),
-};
-
 /* OTG gadget device */
 struct platform_device otg_udc_device = {
 	.name = "fsl-usb2-udc",
@@ -59,31 +48,6 @@ struct platform_device otg_udc_device = {
 	.num_resources = ARRAY_SIZE(mxc_otg_resources),
 };
 
-static u64 usbh2_dmamask = DMA_BIT_MASK(32);
-
-static struct resource mxc_usbh2_resources[] = {
-	{
-		.start = MX25_OTG_BASE_ADDR + 0x400,
-		.end = MX25_OTG_BASE_ADDR + 0x5ff,
-		.flags = IORESOURCE_MEM,
-	}, {
-		.start = 35,
-		.end = 35,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device mxc_usbh2 = {
-	.name = "mxc-ehci",
-	.id = 1,
-	.dev = {
-		.coherent_dma_mask = 0xffffffff,
-		.dma_mask = &usbh2_dmamask,
-	},
-	.resource = mxc_usbh2_resources,
-	.num_resources = ARRAY_SIZE(mxc_usbh2_resources),
-};
-
 static struct resource mxc_pwm_resources0[] = {
 	{
 		.start	= 0x53fe0000,

arch/arm/mach-mx25/devices.h

@@ -1,6 +1,4 @@
-extern struct platform_device mxc_otg;
 extern struct platform_device otg_udc_device;
-extern struct platform_device mxc_usbh2;
 extern struct platform_device mxc_pwm_device0;
 extern struct platform_device mxc_pwm_device1;
 extern struct platform_device mxc_pwm_device2;

arch/arm/mach-mx25/mach-cpuimx25.c

@@ -39,7 +39,6 @@
 #include <mach/mx25.h>
 #include <mach/mxc_nand.h>
 #include <mach/imxfb.h>
-#include <mach/mxc_ehci.h>
 #include <mach/iomux-mx25.h>
 
 #include "devices-imx25.h"
@@ -87,12 +86,12 @@ static struct i2c_board_info eukrea_cpuimx25_i2c_devices[] = {
 	},
 };
 
-static struct mxc_usbh_platform_data otg_pdata = {
+static const struct mxc_usbh_platform_data otg_pdata __initconst = {
 	.portsc	= MXC_EHCI_MODE_UTMI,
 	.flags	= MXC_EHCI_INTERFACE_DIFF_UNI,
 };
 
-static struct mxc_usbh_platform_data usbh2_pdata = {
+static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
 	.portsc	= MXC_EHCI_MODE_SERIAL,
 	.flags	= MXC_EHCI_INTERFACE_SINGLE_UNI | MXC_EHCI_INTERNAL_PHY |
 		  MXC_EHCI_IPPUE_DOWN,
@@ -134,11 +133,11 @@ static void __init eukrea_cpuimx25_init(void)
 	imx25_add_imx_i2c0(&eukrea_cpuimx25_i2c0_data);
 
 	if (otg_mode_host)
-		mxc_register_device(&mxc_otg, &otg_pdata);
+		imx25_add_mxc_ehci_otg(&otg_pdata);
 	else
 		mxc_register_device(&otg_udc_device, &otg_device_pdata);
 
-	mxc_register_device(&mxc_usbh2, &usbh2_pdata);
+	imx25_add_mxc_ehci_hs(&usbh2_pdata);
 
 #ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
 	eukrea_mbimxsd25_baseboard_init();

arch/arm/mach-mx25/mach-mx25_3ds.c

@@ -192,7 +192,7 @@ static void __init mx25pdk_init(void)
 			ARRAY_SIZE(mx25pdk_pads));
 
 	imx25_add_imx_uart0(&uart_pdata);
-	mxc_register_device(&mxc_usbh2, NULL);
+	imx25_add_mxc_ehci_hs(NULL);
 	imx25_add_mxc_nand(&mx25pdk_nand_board_info);
 	mxc_register_device(&mx25_rtc_device, NULL);
 	mxc_register_device(&mx25_fb_device, &mx25pdk_fb_pdata);

arch/arm/plat-mxc/devices/platform-mxc-ehci.c

@@ -16,6 +16,13 @@
 		.irq = soc ## _INT_USB_ ## hs,				\
 	}
 
+#ifdef CONFIG_ARCH_MX25
+const struct imx_mxc_ehci_data imx25_mxc_ehci_otg_data __initconst =
+	imx_mxc_ehci_data_entry_single(MX25, 0, OTG);
+const struct imx_mxc_ehci_data imx25_mxc_ehci_hs_data __initconst =
+	imx_mxc_ehci_data_entry_single(MX25, 1, HS);
+#endif /* ifdef CONFIG_ARCH_MX25 */
+
 #ifdef CONFIG_SOC_IMX27
 const struct imx_mxc_ehci_data imx27_mxc_ehci_otg_data __initconst =
 	imx_mxc_ehci_data_entry_single(MX27, 0, OTG);

arch/arm/plat-mxc/ehci.c

@@ -71,7 +71,7 @@ int mxc_initialize_usb_hw(int port, unsigned int flags)
 	unsigned int v;
 #if defined(CONFIG_ARCH_MX25)
 	if (cpu_is_mx25()) {
-		v = readl(MX25_IO_ADDRESS(MX25_OTG_BASE_ADDR +
+		v = readl(MX25_IO_ADDRESS(MX25_USB_BASE_ADDR +
 				     USBCTRL_OTGBASE_OFFSET));
 
 		switch (port) {
@@ -108,7 +108,7 @@ int mxc_initialize_usb_hw(int port, unsigned int flags)
 			return -EINVAL;
 		}
 
-		writel(v, MX25_IO_ADDRESS(MX25_OTG_BASE_ADDR +
+		writel(v, MX25_IO_ADDRESS(MX25_USB_BASE_ADDR +
 				     USBCTRL_OTGBASE_OFFSET));
 		return 0;
 	}

arch/arm/plat-mxc/include/mach/mx25.h

@@ -43,7 +43,9 @@
 #define MX25_LCDC_BASE_ADDR		0x53fbc000
 #define MX25_KPP_BASE_ADDR		0x43fa8000
 #define MX25_SDMA_BASE_ADDR		0x53fd4000
-#define MX25_OTG_BASE_ADDR		0x53ff4000
+#define MX25_USB_BASE_ADDR		0x53ff4000
+#define MX25_USB_OTG_BASE_ADDR			(MX25_USB_BASE_ADDR + 0x0000)
+#define MX25_USB_HS_BASE_ADDR			(MX25_USB_BASE_ADDR + 0x0200)
 #define MX25_CSI_BASE_ADDR		0x53ff8000
 
 #define MX25_IO_P2V(x)			IMX_IO_P2V(x)
@@ -67,6 +69,8 @@
 #define MX25_INT_UART2		32
 #define MX25_INT_NFC		33
 #define MX25_INT_SDMA		34
+#define MX25_INT_USB_HS		35
+#define MX25_INT_USB_OTG	37
 #define MX25_INT_LCDC		39
 #define MX25_INT_UART5		40
 #define MX25_INT_CAN1		43