From patchwork Tue Dec 30 19:28:38 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Herring X-Patchwork-Id: 5552971 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id C5C50BF6C3 for ; Tue, 30 Dec 2014 19:34:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 14CC9200FE for ; Tue, 30 Dec 2014 19:34:52 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 56A7A200DC for ; Tue, 30 Dec 2014 19:34:50 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Y62WJ-0007Mi-9f; Tue, 30 Dec 2014 19:31:55 +0000 Received: from mail-oi0-x232.google.com ([2607:f8b0:4003:c06::232]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Y62U0-0005C7-Vw for linux-arm-kernel@lists.infradead.org; Tue, 30 Dec 2014 19:29:37 +0000 Received: by mail-oi0-f50.google.com with SMTP id x69so33499082oia.9 for ; Tue, 30 Dec 2014 11:29:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=Dkpq3dJLYQOcqhk/WbWZrk9BZurBVgSpsfgUeHKYl5o=; b=Q0LAM0nQzTkvKroGpCUPCOWnVsaPRvqx5H2nc3zGrVMMfKv3YbrRcI2sHHnG/hjca4 /Q4mZ+NNLFFdc99+Dz66H2oTD7NK21l62bv0PXX2SvEByCGRqlajus/05UyiM11i0lyU 2RKk+QMPrXG4rFDUIxbtA4oFP1eEb8b8B6ftW9VYrAiLVvNKP+fpj/PacVdc4o8aGtvq 9BUiTyivquRJ0hu78qmhdKtWokXOXKcOqLouGosVMGO4MXO0UKL4OaHEcDsvHXIei9Qt aLEAQ971Jr0PJbSpjy+opwul3dBbzwsWbQlVtWl7b6hUZLdFd79TsPOaKCTTwoRuZNEu 3xnA== X-Received: by 10.182.165.9 with SMTP id yu9mr5588075obb.34.1419967751899; Tue, 30 Dec 2014 11:29:11 -0800 (PST) Received: from rob-laptop.herring.priv (72-48-98-129.dyn.grandenetworks.net. [72.48.98.129]) by mx.google.com with ESMTPSA id e3sm20469216oib.27.2014.12.30.11.29.10 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 30 Dec 2014 11:29:10 -0800 (PST) From: Rob Herring To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Subject: [PATCH 9/9] ARM: versatile: consolidate code to single file Date: Tue, 30 Dec 2014 13:28:38 -0600 Message-Id: <1419967718-26909-10-git-send-email-robherring2@gmail.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1419967718-26909-1-git-send-email-robherring2@gmail.com> References: <1419967718-26909-1-git-send-email-robherring2@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141230_112933_192011_FD123E9D X-CRM114-Status: GOOD ( 19.76 ) X-Spam-Score: -0.6 (/) Cc: Peter Maydell , Russell King , Rob Herring , Linus Walleij , arm@kernel.org, Bjorn Helgaas X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Rob Herring The split of core.c and versatile_dt.c now makes little sense, so move all of core.c into versatile_dt.c. Signed-off-by: Rob Herring Cc: Russell King Cc: Linus Walleij --- arch/arm/mach-versatile/Makefile | 2 +- arch/arm/mach-versatile/core.c | 324 --------------------------------- arch/arm/mach-versatile/core.h | 41 ----- arch/arm/mach-versatile/versatile_dt.c | 291 ++++++++++++++++++++++++++++- 4 files changed, 291 insertions(+), 367 deletions(-) delete mode 100644 arch/arm/mach-versatile/core.c delete mode 100644 arch/arm/mach-versatile/core.h diff --git a/arch/arm/mach-versatile/Makefile b/arch/arm/mach-versatile/Makefile index ccef512..41b124b 100644 --- a/arch/arm/mach-versatile/Makefile +++ b/arch/arm/mach-versatile/Makefile @@ -2,4 +2,4 @@ # Makefile for the linux kernel. # -obj-y := core.o versatile_dt.o +obj-y := versatile_dt.o diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c deleted file mode 100644 index f6b122b..0000000 --- a/arch/arm/mach-versatile/core.c +++ /dev/null @@ -1,324 +0,0 @@ -/* - * linux/arch/arm/mach-versatile/core.c - * - * Copyright (C) 1999 - 2003 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions Ltd - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include "platform.h" - -#include "core.h" - -static struct map_desc versatile_io_desc[] __initdata __maybe_unused = { - { - .virtual = IO_ADDRESS(VERSATILE_SYS_BASE), - .pfn = __phys_to_pfn(VERSATILE_SYS_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(VERSATILE_SCTL_BASE), - .pfn = __phys_to_pfn(VERSATILE_SCTL_BASE), - .length = SZ_4K * 9, - .type = MT_DEVICE - }, -}; - -void __init versatile_map_io(void) -{ - debug_ll_io_init(); - iotable_init(versatile_io_desc, ARRAY_SIZE(versatile_io_desc)); -} - - -#define VERSATILE_FLASHCTRL (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_FLASH_OFFSET) - -static void versatile_flash_set_vpp(struct platform_device *pdev, int on) -{ - u32 val; - - val = __raw_readl(VERSATILE_FLASHCTRL); - if (on) - val |= VERSATILE_FLASHPROG_FLVPPEN; - else - val &= ~VERSATILE_FLASHPROG_FLVPPEN; - __raw_writel(val, VERSATILE_FLASHCTRL); -} - -static struct physmap_flash_data versatile_flash_data = { - .width = 4, - .set_vpp = versatile_flash_set_vpp, -}; - -static struct resource versatile_flash_resource = { - .start = VERSATILE_FLASH_BASE, - .end = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE - 1, - .flags = IORESOURCE_MEM, -}; - -struct platform_device versatile_flash_device = { - .name = "physmap-flash", - .id = 0, - .dev = { - .platform_data = &versatile_flash_data, - }, - .num_resources = 1, - .resource = &versatile_flash_resource, -}; - -#define VERSATILE_SYSMCI (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET) - -unsigned int mmc_status(struct device *dev) -{ - struct amba_device *adev = container_of(dev, struct amba_device, dev); - u32 mask; - - if (adev->res.start == VERSATILE_MMCI0_BASE) - mask = 1; - else - mask = 2; - - return readl(VERSATILE_SYSMCI) & mask; -} - -static struct mmci_platform_data mmc0_plat_data = { - .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, - .status = mmc_status, - .gpio_wp = -1, - .gpio_cd = -1, -}; - -static struct mmci_platform_data mmc1_plat_data = { - .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, - .status = mmc_status, - .gpio_wp = -1, - .gpio_cd = -1, -}; - -/* - * CLCD support. - */ -#define SYS_CLCD_MODE_MASK (3 << 0) -#define SYS_CLCD_MODE_888 (0 << 0) -#define SYS_CLCD_MODE_5551 (1 << 0) -#define SYS_CLCD_MODE_565_RLSB (2 << 0) -#define SYS_CLCD_MODE_565_BLSB (3 << 0) -#define SYS_CLCD_NLCDIOON (1 << 2) -#define SYS_CLCD_VDDPOSSWITCH (1 << 3) -#define SYS_CLCD_PWR3V5SWITCH (1 << 4) -#define SYS_CLCD_ID_MASK (0x1f << 8) -#define SYS_CLCD_ID_SANYO_3_8 (0x00 << 8) -#define SYS_CLCD_ID_UNKNOWN_8_4 (0x01 << 8) -#define SYS_CLCD_ID_EPSON_2_2 (0x02 << 8) -#define SYS_CLCD_ID_SANYO_2_5 (0x07 << 8) -#define SYS_CLCD_ID_VGA (0x1f << 8) - -static bool is_sanyo_2_5_lcd; - -/* - * Disable all display connectors on the interface module. - */ -static void versatile_clcd_disable(struct clcd_fb *fb) -{ - void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; - u32 val; - - val = readl(sys_clcd); - val &= ~SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH; - writel(val, sys_clcd); - - /* - * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light off - */ - if (of_machine_is_compatible("arm,versatile-ab") && is_sanyo_2_5_lcd) { - void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL); - unsigned long ctrl; - - ctrl = readl(versatile_ib2_ctrl); - ctrl &= ~0x01; - writel(ctrl, versatile_ib2_ctrl); - } -} - -/* - * Enable the relevant connector on the interface module. - */ -static void versatile_clcd_enable(struct clcd_fb *fb) -{ - struct fb_var_screeninfo *var = &fb->fb.var; - void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; - u32 val; - - val = readl(sys_clcd); - val &= ~SYS_CLCD_MODE_MASK; - - switch (var->green.length) { - case 5: - val |= SYS_CLCD_MODE_5551; - break; - case 6: - if (var->red.offset == 0) - val |= SYS_CLCD_MODE_565_RLSB; - else - val |= SYS_CLCD_MODE_565_BLSB; - break; - case 8: - val |= SYS_CLCD_MODE_888; - break; - } - - /* - * Set the MUX - */ - writel(val, sys_clcd); - - /* - * And now enable the PSUs - */ - val |= SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH; - writel(val, sys_clcd); - - /* - * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light on - */ - if (of_machine_is_compatible("arm,versatile-ab") && is_sanyo_2_5_lcd) { - void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL); - unsigned long ctrl; - - ctrl = readl(versatile_ib2_ctrl); - ctrl |= 0x01; - writel(ctrl, versatile_ib2_ctrl); - } -} - -/* - * Detect which LCD panel is connected, and return the appropriate - * clcd_panel structure. Note: we do not have any information on - * the required timings for the 8.4in panel, so we presently assume - * VGA timings. - */ -static int versatile_clcd_setup(struct clcd_fb *fb) -{ - void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; - const char *panel_name; - u32 val; - - is_sanyo_2_5_lcd = false; - - val = readl(sys_clcd) & SYS_CLCD_ID_MASK; - if (val == SYS_CLCD_ID_SANYO_3_8) - panel_name = "Sanyo TM38QV67A02A"; - else if (val == SYS_CLCD_ID_SANYO_2_5) { - panel_name = "Sanyo QVGA Portrait"; - is_sanyo_2_5_lcd = true; - } else if (val == SYS_CLCD_ID_EPSON_2_2) - panel_name = "Epson L2F50113T00"; - else if (val == SYS_CLCD_ID_VGA) - panel_name = "VGA"; - else { - printk(KERN_ERR "CLCD: unknown LCD panel ID 0x%08x, using VGA\n", - val); - panel_name = "VGA"; - } - - fb->panel = versatile_clcd_get_panel(panel_name); - if (!fb->panel) - return -EINVAL; - - return versatile_clcd_setup_dma(fb, SZ_1M); -} - -static void versatile_clcd_decode(struct clcd_fb *fb, struct clcd_regs *regs) -{ - clcdfb_decode(fb, regs); - - /* Always clear BGR for RGB565: we do the routing externally */ - if (fb->fb.var.green.length == 6) - regs->cntl &= ~CNTL_BGR; -} - -static struct clcd_board clcd_plat_data = { - .name = "Versatile", - .caps = CLCD_CAP_5551 | CLCD_CAP_565 | CLCD_CAP_888, - .check = clcdfb_check, - .decode = versatile_clcd_decode, - .disable = versatile_clcd_disable, - .enable = versatile_clcd_enable, - .setup = versatile_clcd_setup, - .mmap = versatile_clcd_mmap_dma, - .remove = versatile_clcd_remove_dma, -}; - -/* - * Lookup table for attaching a specific name and platform_data pointer to - * devices as they get created by of_platform_populate(). Ideally this table - * would not exist, but the current clock implementation depends on some devices - * having a specific name. - */ -struct of_dev_auxdata versatile_auxdata_lookup[] __initdata = { - OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI0_BASE, "fpga:05", &mmc0_plat_data), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI1_BASE, "fpga:0b", &mmc1_plat_data), - - OF_DEV_AUXDATA("arm,primecell", VERSATILE_CLCD_BASE, "dev:20", &clcd_plat_data), - - {} -}; - -void versatile_restart(enum reboot_mode mode, const char *cmd) -{ - void __iomem *sys = __io_address(VERSATILE_SYS_BASE); - u32 val; - - val = __raw_readl(sys + VERSATILE_SYS_RESETCTL_OFFSET); - val |= 0x105; - - __raw_writel(0xa05f, sys + VERSATILE_SYS_LOCK_OFFSET); - __raw_writel(val, sys + VERSATILE_SYS_RESETCTL_OFFSET); - __raw_writel(0, sys + VERSATILE_SYS_LOCK_OFFSET); -} - -/* Early initializations */ -void __init versatile_init_early(void) -{ - u32 val; - - /* - * set clock frequency: - * VERSATILE_REFCLK is 32KHz - * VERSATILE_TIMCLK is 1MHz - */ - val = readl(__io_address(VERSATILE_SCTL_BASE)); - writel((VERSATILE_TIMCLK << VERSATILE_TIMER1_EnSel) | - (VERSATILE_TIMCLK << VERSATILE_TIMER2_EnSel) | - (VERSATILE_TIMCLK << VERSATILE_TIMER3_EnSel) | - (VERSATILE_TIMCLK << VERSATILE_TIMER4_EnSel) | val, - __io_address(VERSATILE_SCTL_BASE)); -} diff --git a/arch/arm/mach-versatile/core.h b/arch/arm/mach-versatile/core.h deleted file mode 100644 index c3d7157..0000000 --- a/arch/arm/mach-versatile/core.h +++ /dev/null @@ -1,41 +0,0 @@ -/* - * linux/arch/arm/mach-versatile/core.h - * - * Copyright (C) 2004 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions Ltd - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef __ASM_ARCH_VERSATILE_H -#define __ASM_ARCH_VERSATILE_H - -#include -#include -#include - -extern struct platform_device versatile_flash_device; - -extern void __init versatile_init_early(void); -extern void __init versatile_init_irq(void); -extern void __init versatile_map_io(void); -extern void versatile_timer_init(void); -extern void versatile_restart(enum reboot_mode, const char *); -extern unsigned int mmc_status(struct device *dev); -#ifdef CONFIG_OF -extern struct of_dev_auxdata versatile_auxdata_lookup[]; -#endif - -#endif diff --git a/arch/arm/mach-versatile/versatile_dt.c b/arch/arm/mach-versatile/versatile_dt.c index 1bb21d1..9b0d392 100644 --- a/arch/arm/mach-versatile/versatile_dt.c +++ b/arch/arm/mach-versatile/versatile_dt.c @@ -28,13 +28,302 @@ #include #include #include +#include +#include +#include +#include +#include #include #include +#include -#include "core.h" +#include "platform.h" #define VERSATILE_SYS_PCICTL_OFFSET 0x44 +#define VERSATILE_FLASHCTRL (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_FLASH_OFFSET) + +static void versatile_flash_set_vpp(struct platform_device *pdev, int on) +{ + u32 val; + + val = __raw_readl(VERSATILE_FLASHCTRL); + if (on) + val |= VERSATILE_FLASHPROG_FLVPPEN; + else + val &= ~VERSATILE_FLASHPROG_FLVPPEN; + __raw_writel(val, VERSATILE_FLASHCTRL); +} + +static struct physmap_flash_data versatile_flash_data = { + .width = 4, + .set_vpp = versatile_flash_set_vpp, +}; + +static struct resource versatile_flash_resource = { + .start = VERSATILE_FLASH_BASE, + .end = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +struct platform_device versatile_flash_device = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &versatile_flash_data, + }, + .num_resources = 1, + .resource = &versatile_flash_resource, +}; + +#define VERSATILE_SYSMCI (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET) + +unsigned int mmc_status(struct device *dev) +{ + struct amba_device *adev = container_of(dev, struct amba_device, dev); + u32 mask; + + if (adev->res.start == VERSATILE_MMCI0_BASE) + mask = 1; + else + mask = 2; + + return readl(VERSATILE_SYSMCI) & mask; +} + +static struct mmci_platform_data mmc0_plat_data = { + .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, + .status = mmc_status, + .gpio_wp = -1, + .gpio_cd = -1, +}; + +static struct mmci_platform_data mmc1_plat_data = { + .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, + .status = mmc_status, + .gpio_wp = -1, + .gpio_cd = -1, +}; + +/* + * CLCD support. + */ +#define SYS_CLCD_MODE_MASK (3 << 0) +#define SYS_CLCD_MODE_888 (0 << 0) +#define SYS_CLCD_MODE_5551 (1 << 0) +#define SYS_CLCD_MODE_565_RLSB (2 << 0) +#define SYS_CLCD_MODE_565_BLSB (3 << 0) +#define SYS_CLCD_NLCDIOON (1 << 2) +#define SYS_CLCD_VDDPOSSWITCH (1 << 3) +#define SYS_CLCD_PWR3V5SWITCH (1 << 4) +#define SYS_CLCD_ID_MASK (0x1f << 8) +#define SYS_CLCD_ID_SANYO_3_8 (0x00 << 8) +#define SYS_CLCD_ID_UNKNOWN_8_4 (0x01 << 8) +#define SYS_CLCD_ID_EPSON_2_2 (0x02 << 8) +#define SYS_CLCD_ID_SANYO_2_5 (0x07 << 8) +#define SYS_CLCD_ID_VGA (0x1f << 8) + +static bool is_sanyo_2_5_lcd; + +/* + * Disable all display connectors on the interface module. + */ +static void versatile_clcd_disable(struct clcd_fb *fb) +{ + void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; + u32 val; + + val = readl(sys_clcd); + val &= ~SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH; + writel(val, sys_clcd); + + /* + * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light off + */ + if (of_machine_is_compatible("arm,versatile-ab") && is_sanyo_2_5_lcd) { + void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL); + unsigned long ctrl; + + ctrl = readl(versatile_ib2_ctrl); + ctrl &= ~0x01; + writel(ctrl, versatile_ib2_ctrl); + } +} + +/* + * Enable the relevant connector on the interface module. + */ +static void versatile_clcd_enable(struct clcd_fb *fb) +{ + struct fb_var_screeninfo *var = &fb->fb.var; + void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; + u32 val; + + val = readl(sys_clcd); + val &= ~SYS_CLCD_MODE_MASK; + + switch (var->green.length) { + case 5: + val |= SYS_CLCD_MODE_5551; + break; + case 6: + if (var->red.offset == 0) + val |= SYS_CLCD_MODE_565_RLSB; + else + val |= SYS_CLCD_MODE_565_BLSB; + break; + case 8: + val |= SYS_CLCD_MODE_888; + break; + } + + /* + * Set the MUX + */ + writel(val, sys_clcd); + + /* + * And now enable the PSUs + */ + val |= SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH; + writel(val, sys_clcd); + + /* + * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light on + */ + if (of_machine_is_compatible("arm,versatile-ab") && is_sanyo_2_5_lcd) { + void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL); + unsigned long ctrl; + + ctrl = readl(versatile_ib2_ctrl); + ctrl |= 0x01; + writel(ctrl, versatile_ib2_ctrl); + } +} + +/* + * Detect which LCD panel is connected, and return the appropriate + * clcd_panel structure. Note: we do not have any information on + * the required timings for the 8.4in panel, so we presently assume + * VGA timings. + */ +static int versatile_clcd_setup(struct clcd_fb *fb) +{ + void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; + const char *panel_name; + u32 val; + + is_sanyo_2_5_lcd = false; + + val = readl(sys_clcd) & SYS_CLCD_ID_MASK; + if (val == SYS_CLCD_ID_SANYO_3_8) + panel_name = "Sanyo TM38QV67A02A"; + else if (val == SYS_CLCD_ID_SANYO_2_5) { + panel_name = "Sanyo QVGA Portrait"; + is_sanyo_2_5_lcd = true; + } else if (val == SYS_CLCD_ID_EPSON_2_2) + panel_name = "Epson L2F50113T00"; + else if (val == SYS_CLCD_ID_VGA) + panel_name = "VGA"; + else { + printk(KERN_ERR "CLCD: unknown LCD panel ID 0x%08x, using VGA\n", + val); + panel_name = "VGA"; + } + + fb->panel = versatile_clcd_get_panel(panel_name); + if (!fb->panel) + return -EINVAL; + + return versatile_clcd_setup_dma(fb, SZ_1M); +} + +static void versatile_clcd_decode(struct clcd_fb *fb, struct clcd_regs *regs) +{ + clcdfb_decode(fb, regs); + + /* Always clear BGR for RGB565: we do the routing externally */ + if (fb->fb.var.green.length == 6) + regs->cntl &= ~CNTL_BGR; +} + +static struct clcd_board clcd_plat_data = { + .name = "Versatile", + .caps = CLCD_CAP_5551 | CLCD_CAP_565 | CLCD_CAP_888, + .check = clcdfb_check, + .decode = versatile_clcd_decode, + .disable = versatile_clcd_disable, + .enable = versatile_clcd_enable, + .setup = versatile_clcd_setup, + .mmap = versatile_clcd_mmap_dma, + .remove = versatile_clcd_remove_dma, +}; + +/* + * Lookup table for attaching a specific name and platform_data pointer to + * devices as they get created by of_platform_populate(). Ideally this table + * would not exist, but the current clock implementation depends on some devices + * having a specific name. + */ +struct of_dev_auxdata versatile_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI0_BASE, "fpga:05", &mmc0_plat_data), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI1_BASE, "fpga:0b", &mmc1_plat_data), + + OF_DEV_AUXDATA("arm,primecell", VERSATILE_CLCD_BASE, "dev:20", &clcd_plat_data), + + {} +}; + +static struct map_desc versatile_io_desc[] __initdata __maybe_unused = { + { + .virtual = IO_ADDRESS(VERSATILE_SYS_BASE), + .pfn = __phys_to_pfn(VERSATILE_SYS_BASE), + .length = SZ_4K, + .type = MT_DEVICE + }, { + .virtual = IO_ADDRESS(VERSATILE_SCTL_BASE), + .pfn = __phys_to_pfn(VERSATILE_SCTL_BASE), + .length = SZ_4K * 9, + .type = MT_DEVICE + }, +}; + +static void __init versatile_map_io(void) +{ + debug_ll_io_init(); + iotable_init(versatile_io_desc, ARRAY_SIZE(versatile_io_desc)); +} + +static void __init versatile_init_early(void) +{ + u32 val; + + /* + * set clock frequency: + * VERSATILE_REFCLK is 32KHz + * VERSATILE_TIMCLK is 1MHz + */ + val = readl(__io_address(VERSATILE_SCTL_BASE)); + writel((VERSATILE_TIMCLK << VERSATILE_TIMER1_EnSel) | + (VERSATILE_TIMCLK << VERSATILE_TIMER2_EnSel) | + (VERSATILE_TIMCLK << VERSATILE_TIMER3_EnSel) | + (VERSATILE_TIMCLK << VERSATILE_TIMER4_EnSel) | val, + __io_address(VERSATILE_SCTL_BASE)); +} + +static void versatile_restart(enum reboot_mode mode, const char *cmd) +{ + void __iomem *sys = __io_address(VERSATILE_SYS_BASE); + u32 val; + + val = __raw_readl(sys + VERSATILE_SYS_RESETCTL_OFFSET); + val |= 0x105; + + __raw_writel(0xa05f, sys + VERSATILE_SYS_LOCK_OFFSET); + __raw_writel(val, sys + VERSATILE_SYS_RESETCTL_OFFSET); + __raw_writel(0, sys + VERSATILE_SYS_LOCK_OFFSET); +} + static void __init versatile_dt_pci_init(void) { u32 val;