ARM: vt8500: Add support for UHCI companion controller

Add support for a generic non-pci UHCI companion controller.
Existing board files for arch-vt8500 updated to include UHCI
support.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

6 files changed, 23 insertions, 0 deletions

diff --git a/arch/arm/mach-vt8500/bv07.c b/arch/arm/mach-vt8500/bv07.c
index f9fbeb2d10e9..6fd9d609ebaa 100644
--- a/arch/arm/mach-vt8500/bv07.c
+++ b/arch/arm/mach-vt8500/bv07.c
@@ -33,6 +33,7 @@ static struct platform_device *devices[] __initdata = {
 	&vt8500_device_uart0,
 	&vt8500_device_lcdc,
 	&vt8500_device_ehci,
+	&vt8500_device_uhci,
 	&vt8500_device_ge_rops,
 	&vt8500_device_pwm,
 	&vt8500_device_pwmbl,
diff --git a/arch/arm/mach-vt8500/devices-vt8500.c b/arch/arm/mach-vt8500/devices-vt8500.c
index 19519aeecf37..def7fe393a2c 100644
--- a/arch/arm/mach-vt8500/devices-vt8500.c
+++ b/arch/arm/mach-vt8500/devices-vt8500.c
@@ -48,6 +48,11 @@ void __init vt8500_set_resources(void)
 	tmp[1] = wmt_irq_res(IRQ_EHCI);
 	wmt_res_add(&vt8500_device_ehci, tmp, 2);
 
+	/* vt8500 uses a single IRQ for both EHCI and UHCI controllers */
+	tmp[0] = wmt_mmio_res(VT8500_UHCI_BASE, SZ_512);
+	tmp[1] = wmt_irq_res(IRQ_EHCI);
+	wmt_res_add(&vt8500_device_uhci, tmp, 2);
+
 	tmp[0] = wmt_mmio_res(VT8500_GEGEA_BASE, SZ_256);
 	wmt_res_add(&vt8500_device_ge_rops, tmp, 1);
 
diff --git a/arch/arm/mach-vt8500/devices-wm8505.c b/arch/arm/mach-vt8500/devices-wm8505.c
index db4594e029f4..c810454178dc 100644
--- a/arch/arm/mach-vt8500/devices-wm8505.c
+++ b/arch/arm/mach-vt8500/devices-wm8505.c
@@ -55,6 +55,10 @@ void __init wm8505_set_resources(void)
 	tmp[1] = wmt_irq_res(IRQ_EHCI);
 	wmt_res_add(&vt8500_device_ehci, tmp, 2);
 
+	tmp[0] = wmt_mmio_res(WM8505_UHCI_BASE, SZ_512);
+	tmp[1] = wmt_irq_res(IRQ_UHCI);
+	wmt_res_add(&vt8500_device_uhci, tmp, 2);
+
 	tmp[0] = wmt_mmio_res(WM8505_GEGEA_BASE, SZ_256);
 	wmt_res_add(&vt8500_device_ge_rops, tmp, 1);
 
diff --git a/arch/arm/mach-vt8500/devices.c b/arch/arm/mach-vt8500/devices.c
index 1fcdc36b358d..46ff82dad544 100644
--- a/arch/arm/mach-vt8500/devices.c
+++ b/arch/arm/mach-vt8500/devices.c
@@ -204,6 +204,17 @@ struct platform_device vt8500_device_ehci = {
 	},
 };
 
+static u64 uhci_dma_mask = DMA_BIT_MASK(32);
+
+struct platform_device vt8500_device_uhci = {
+	.name		= "platform-uhci",
+	.id		= 0,
+	.dev		= {
+		.dma_mask	= &uhci_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+};
+
 struct platform_device vt8500_device_ge_rops = {
 	.name		= "wmt_ge_rops",
 	.id		= -1,
diff --git a/arch/arm/mach-vt8500/devices.h b/arch/arm/mach-vt8500/devices.h
index 188d4e17f35c..0e6d9f904c77 100644
--- a/arch/arm/mach-vt8500/devices.h
+++ b/arch/arm/mach-vt8500/devices.h
@@ -81,6 +81,7 @@ extern struct platform_device vt8500_device_uart5;
 extern struct platform_device vt8500_device_lcdc;
 extern struct platform_device vt8500_device_wm8505_fb;
 extern struct platform_device vt8500_device_ehci;
+extern struct platform_device vt8500_device_uhci;
 extern struct platform_device vt8500_device_ge_rops;
 extern struct platform_device vt8500_device_pwm;
 extern struct platform_device vt8500_device_pwmbl;
diff --git a/arch/arm/mach-vt8500/wm8505_7in.c b/arch/arm/mach-vt8500/wm8505_7in.c
index db19886caf7c..4804e2a45574 100644
--- a/arch/arm/mach-vt8500/wm8505_7in.c
+++ b/arch/arm/mach-vt8500/wm8505_7in.c
@@ -32,6 +32,7 @@ static void __iomem *pmc_hiber;
 static struct platform_device *devices[] __initdata = {
 	&vt8500_device_uart0,
 	&vt8500_device_ehci,
+	&vt8500_device_uhci,
 	&vt8500_device_wm8505_fb,
 	&vt8500_device_ge_rops,
 	&vt8500_device_pwm,