The DT fragment will select the ohci-platform driver, since that can
handle the JZ4740 OHCI just fine. While I don't have a JZ4740-based
board with anything connected to the USB host controller, I did test
the generic OHCI driver successfully on a JZ4770-based board.
The device is disabled by default; boards that want to use it can
override the "status" property. The mass-production Qi LB60 boards
don't use the USB host controller.
Signed-off-by: Maarten ter Huurne <maar...@treewalker.org>
---
arch/mips/boot/dts/ingenic/jz4740.dtsi | 14 ++++++++++++++
arch/mips/include/asm/mach-jz4740/platform.h | 1 -
arch/mips/jz4740/platform.c | 25 -------------------------
3 files changed, 14 insertions(+), 26 deletions(-)
diff --git a/arch/mips/boot/dts/ingenic/jz4740.dtsi
b/arch/mips/boot/dts/ingenic/jz4740.dtsi
index 8b2437c..4a9c8f2 100644
--- a/arch/mips/boot/dts/ingenic/jz4740.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4740.dtsi
@@ -65,4 +65,18 @@
clocks = <&ext>, <&cgu JZ4740_CLK_UART1>;
clock-names = "baud", "module";
};
+
+ uhc: uhc@13030000 {
+ compatible = "ingenic,jz4740-ohci", "generic-ohci";
+ reg = <0x13030000 0x1000>;
+
+ clocks = <&cgu JZ4740_CLK_UHC>;
+ assigned-clocks = <&cgu JZ4740_CLK_UHC>;
+ assigned-clock-rates = <48000000>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <3>;
+
+ status = "disabled";
+ };
};
diff --git a/arch/mips/include/asm/mach-jz4740/platform.h
b/arch/mips/include/asm/mach-jz4740/platform.h
index 32cfbe6..073b8bf 100644
--- a/arch/mips/include/asm/mach-jz4740/platform.h
+++ b/arch/mips/include/asm/mach-jz4740/platform.h
@@ -19,7 +19,6 @@
#include <linux/platform_device.h>
-extern struct platform_device jz4740_usb_ohci_device;
extern struct platform_device jz4740_udc_device;
extern struct platform_device jz4740_udc_xceiv_device;
extern struct platform_device jz4740_mmc_device;
diff --git a/arch/mips/jz4740/platform.c b/arch/mips/jz4740/platform.c
index e8a463b..2f1dab3 100644
--- a/arch/mips/jz4740/platform.c
+++ b/arch/mips/jz4740/platform.c
@@ -32,31 +32,6 @@
#include "clock.h"
-/* OHCI controller */
-static struct resource jz4740_usb_ohci_resources[] = {
- {
- .start = JZ4740_UHC_BASE_ADDR,
- .end = JZ4740_UHC_BASE_ADDR + 0x1000 - 1,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = JZ4740_IRQ_UHC,
- .end = JZ4740_IRQ_UHC,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-struct platform_device jz4740_usb_ohci_device = {
- .name = "jz4740-ohci",
- .id = -1,
- .dev = {
- .dma_mask = &jz4740_usb_ohci_device.dev.coherent_dma_mask,
- .coherent_dma_mask = DMA_BIT_MASK(32),
- },
- .num_resources = ARRAY_SIZE(jz4740_usb_ohci_resources),
- .resource = jz4740_usb_ohci_resources,
-};
-
/* USB Device Controller */
struct platform_device jz4740_udc_xceiv_device = {
.name = "usb_phy_generic",
--
2.6.6
