From patchwork Tue Apr 16 21:33:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergei Shtylyov X-Patchwork-Id: 2451091 Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id ABBB8DF230 for ; Tue, 16 Apr 2013 21:34:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965421Ab3DPVeq (ORCPT ); Tue, 16 Apr 2013 17:34:46 -0400 Received: from mail-la0-f43.google.com ([209.85.215.43]:40968 "EHLO mail-la0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965417Ab3DPVep (ORCPT ); Tue, 16 Apr 2013 17:34:45 -0400 Received: by mail-la0-f43.google.com with SMTP id eg20so887061lab.2 for ; Tue, 16 Apr 2013 14:34:43 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:to:subject:cc:from:organization:date:mime-version :content-type:content-transfer-encoding:message-id :x-gm-message-state; bh=1FOClUgyItiGKRpfwUTRAlP0Uhg0XORHIIPde/Om/SM=; b=REi0CuA5rifJ90lXTZHUbjNZZRVVhCy1Hvcg7Rw3G0lHJnMihc9yse4L0xBj0flpsW sX0KvLkvJzlAo8WfckjDHg2tDeRHnNMWVl1z17zPe00IS/IKAzo+gk+J9jJRWbRGKdlM ODkQpngd2qjdqhf33b5MnygInBkPB3aoxywYUoBU63d+/1hPFP6Y2wNf2Nm+To9AcCbj p0zjXa9JXdOZ28aWyQMTYccxT40xMs1oVg9Tv0Xf2zdHJNkMI0dD86EOlBTHDWbCZuFR wnHicFB8CfmL4b5G/zFgmi7XjFR6vtdhvfENNtaXE2dFdNkipwkjhHwTcZcQ2CAzPMO5 Nenw== X-Received: by 10.152.104.80 with SMTP id gc16mr2071242lab.49.1366148083405; Tue, 16 Apr 2013 14:34:43 -0700 (PDT) Received: from wasted.dev.rtsoft.ru (ppp91-79-82-36.pppoe.mtu-net.ru. [91.79.82.36]) by mx.google.com with ESMTPS id w6sm1501896law.8.2013.04.16.14.34.41 (version=TLSv1 cipher=RC4-SHA bits=128/128); Tue, 16 Apr 2013 14:34:42 -0700 (PDT) To: horms@verge.net.au, magnus.damm@gmail.com, linux@arm.linux.org.uk, linux-sh@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 2/4] ARM: shmobile: r8a7778: add USB support Cc: linux-usb@vger.kernel.org From: Sergei Shtylyov Organization: Cogent Embedded Date: Wed, 17 Apr 2013 01:33:52 +0400 MIME-Version: 1.0 Message-Id: <201304170133.52854.sergei.shtylyov@cogentembedded.com> X-Gm-Message-State: ALoCoQnSy5qA1PjLEowbGWKA+8Ph7R5OvMNyRM8jEfe0zjUdIhHMfqcVRhqX0jyM7cD9kbyUY37r Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Add USB clock and EHCI, OHCI, and USB PHY platform devices for R8A7778 SoC; add a function to register PHY device with board-specific platform data and register EHCI and OHCI platfrom devices from the init_late() board method. Also, don't forget to enable CONFIG_ARCH_HAS_[EO]HCI options for R8A7778 SoC in Kconfig... The patch has been tested on the BOCK-W board. Signed-off-by: Sergei Shtylyov --- Changes since version 2: - refreshed the patch. Changes since the original posting: - resolved rejects in the 'clock-r8a7778.c' file; - lowercased the SoC name in the subject. arch/arm/mach-shmobile/Kconfig | 2 arch/arm/mach-shmobile/clock-r8a7778.c | 4 arch/arm/mach-shmobile/include/mach/r8a7778.h | 3 arch/arm/mach-shmobile/setup-r8a7778.c | 108 ++++++++++++++++++++++++++ 4 files changed, 117 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-sh" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Index: renesas/arch/arm/mach-shmobile/Kconfig =================================================================== --- renesas.orig/arch/arm/mach-shmobile/Kconfig +++ renesas/arch/arm/mach-shmobile/Kconfig @@ -41,6 +41,8 @@ config ARCH_R8A7778 select CPU_V7 select SH_CLK_CPG select ARM_GIC + select USB_ARCH_HAS_EHCI + select USB_ARCH_HAS_OHCI config ARCH_R8A7779 bool "R-Car H1 (R8A77790)" Index: renesas/arch/arm/mach-shmobile/clock-r8a7778.c =================================================================== --- renesas.orig/arch/arm/mach-shmobile/clock-r8a7778.c +++ renesas/arch/arm/mach-shmobile/clock-r8a7778.c @@ -104,12 +104,14 @@ static struct clk *main_clks[] = { enum { MSTP114, + MSTP100, MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021, MSTP016, MSTP015, MSTP_NR }; static struct clk mstp_clks[MSTP_NR] = { [MSTP114] = SH_CLK_MSTP32(&p_clk, MSTPCR1, 14, 0), /* Ether */ + [MSTP100] = SH_CLK_MSTP32(&p_clk, MSTPCR1, 0, 0), /* USB0/1 */ [MSTP026] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 26, 0), /* SCIF0 */ [MSTP025] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 25, 0), /* SCIF1 */ [MSTP024] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 24, 0), /* SCIF2 */ @@ -123,6 +125,8 @@ static struct clk mstp_clks[MSTP_NR] = { static struct clk_lookup lookups[] = { /* MSTP32 clocks */ CLKDEV_DEV_ID("sh-eth", &mstp_clks[MSTP114]), /* Ether */ + CLKDEV_DEV_ID("ehci-platform", &mstp_clks[MSTP100]), /* USB EHCI port0/1 */ + CLKDEV_DEV_ID("ohci-platform", &mstp_clks[MSTP100]), /* USB OHCI port0/1 */ CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP026]), /* SCIF0 */ CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP025]), /* SCIF1 */ CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP024]), /* SCIF2 */ Index: renesas/arch/arm/mach-shmobile/include/mach/r8a7778.h =================================================================== --- renesas.orig/arch/arm/mach-shmobile/include/mach/r8a7778.h +++ renesas/arch/arm/mach-shmobile/include/mach/r8a7778.h @@ -19,10 +19,13 @@ #define __ASM_R8A7778_H__ #include +#include extern void r8a7778_add_standard_devices(void); extern void r8a7778_add_standard_devices_dt(void); extern void r8a7778_add_ether_device(struct sh_eth_plat_data *pdata); +extern void r8a7778_add_usb_phy_device(struct rcar_phy_platform_data *pdata); +extern void r8a7778_init_late(void); extern void r8a7778_init_delay(void); extern void r8a7778_init_irq(void); extern void r8a7778_init_irq_dt(void); Index: renesas/arch/arm/mach-shmobile/setup-r8a7778.c =================================================================== --- renesas.orig/arch/arm/mach-shmobile/setup-r8a7778.c +++ renesas/arch/arm/mach-shmobile/setup-r8a7778.c @@ -29,6 +29,12 @@ #include #include #include +#include +#include +#include +#include +#include +#include #include #include #include @@ -88,6 +94,99 @@ static struct sh_timer_config sh_tmu1_pl &sh_tmu##idx##_platform_data, \ sizeof(sh_tmu##idx##_platform_data)) +/* USB PHY */ +static struct resource usb_phy_resources[] = { + DEFINE_RES_MEM(0xffe70800, 0x100), + DEFINE_RES_MEM(0xffe76000, 0x100), +}; + +void __init r8a7778_add_usb_phy_device(struct rcar_phy_platform_data *pdata) +{ + platform_device_register_resndata(&platform_bus, "rcar_usb_phy", -1, + usb_phy_resources, + ARRAY_SIZE(usb_phy_resources), + pdata, sizeof(*pdata)); +} + +/* USB */ +static struct usb_phy *phy; + +static int usb_power_on(struct platform_device *pdev) +{ + if (!phy) + return -EIO; + + pm_runtime_enable(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); + + usb_phy_init(phy); + + return 0; +} + +static void usb_power_off(struct platform_device *pdev) +{ + if (!phy) + return; + + usb_phy_shutdown(phy); + + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); +} + +static int ehci_init_internal_buffer(struct usb_hcd *hcd) +{ + /* + * Below are recommended values from the datasheet; + * see [USB :: Setting of EHCI Internal Buffer]. + */ + /* EHCI IP internal buffer setting */ + iowrite32(0x00ff0040, hcd->regs + 0x0094); + /* EHCI IP internal buffer enable */ + iowrite32(0x00000001, hcd->regs + 0x009C); + + return 0; +} + +static struct usb_ehci_pdata ehci_pdata = { + .power_on = usb_power_on, + .power_off = usb_power_off, + .power_suspend = usb_power_off, + .pre_setup = ehci_init_internal_buffer, +}; + +static struct resource ehci_resources[] = { + DEFINE_RES_MEM(0xffe70000, 0x400), + DEFINE_RES_IRQ(gic_iid(0x4c)), +}; + +static struct usb_ohci_pdata ohci_pdata = { + .power_on = usb_power_on, + .power_off = usb_power_off, + .power_suspend = usb_power_off, +}; + +static struct resource ohci_resources[] = { + DEFINE_RES_MEM(0xffe70400, 0x400), + DEFINE_RES_IRQ(gic_iid(0x4c)), +}; + +#define USB_PLATFORM_INFO(hci) \ +static struct platform_device_info hci##_info = { \ + .parent = &platform_bus, \ + .name = #hci "-platform", \ + .id = -1, \ + .res = hci##_resources, \ + .num_res = ARRAY_SIZE(hci##_resources), \ + .data = &hci##_pdata, \ + .size_data = sizeof(hci##_pdata), \ + .dma_mask = DMA_BIT_MASK(32), \ +} + +USB_PLATFORM_INFO(ehci); +USB_PLATFORM_INFO(ohci); + /* Ether */ static struct resource ether_resources[] = { DEFINE_RES_MEM(0xfde00000, 0x400), @@ -139,6 +238,14 @@ void __init r8a7778_add_standard_devices r8a7778_register_tmu(1); } +void __init r8a7778_init_late(void) +{ + phy = usb_get_phy(USB_PHY_TYPE_USB2); + + platform_device_register_full(&ehci_info); + platform_device_register_full(&ohci_info); +} + static struct renesas_intc_irqpin_config irqpin_platform_data = { .irq_base = irq_pin(0), /* IRQ0 -> IRQ3 */ .sense_bitfield_width = 2, @@ -252,6 +359,7 @@ DT_MACHINE_START(R8A7778_DT, "Generic R8 .init_machine = r8a7778_add_standard_devices_dt, .init_time = shmobile_timer_init, .dt_compat = r8a7778_compat_dt, + .init_late = r8a7778_init_late, MACHINE_END #endif /* CONFIG_USE_OF */