From 9d1e7875fafc45dbcbe3d816b022aa1f17219f32 Mon Sep 17 00:00:00 2001 From: Maarten ter Huurne Date: Mon, 18 Apr 2016 20:58:52 +0200 Subject: [PATCH] MIPS: JZ4740: Probe OHCI platform device via DT 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 Cc: Lars-Peter Clausen Cc: Paul Cercueil Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13104/ Signed-off-by: Ralf Baechle --- 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 8b2437cd019f..4a9c8f2a72d6 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 32cfbe6a191b..073b8bfbb3b3 100644 --- a/arch/mips/include/asm/mach-jz4740/platform.h +++ b/arch/mips/include/asm/mach-jz4740/platform.h @@ -19,7 +19,6 @@ #include -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 e8a463b9b663..2f1dab35c061 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",