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authorRob Herring <robh@kernel.org>2015-12-08 14:44:17 -0600
committerArnd Bergmann <arnd@arndb.de>2015-12-15 23:54:43 +0100
commita70967892111934e292485ce84f1bab38cc55380 (patch)
tree2ac943af60c7e85f3ebf48009918e213781c71ec /arch/arm/mach-versatile/core.c
parent16956fed35fecde2201e23458cda193526b19559 (diff)
ARM: versatile: merge mach code into a single file
With DT-only support now in place and most of the legacy code removed, the separation of core.c and versatile_dt.c makes little sense. The headers in mach include directory also have to move for multi-platform support, but with a single .c file the remaining definitions needed can also be moved into the versatile_dt.c. In the move, the system registers and IB2 registers are converted to run-time mappings and all register accesses converted to use readl/writel. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-versatile/core.c')
-rw-r--r--arch/arm/mach-versatile/core.c331
1 files changed, 0 insertions, 331 deletions
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
deleted file mode 100644
index 072ae192421c..000000000000
--- a/arch/arm/mach-versatile/core.c
+++ /dev/null
@@ -1,331 +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 <linux/init.h>
-#include <linux/device.h>
-#include <linux/dma-mapping.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/of_platform.h>
-#include <linux/amba/bus.h>
-#include <linux/amba/clcd.h>
-#include <linux/platform_data/video-clcd-versatile.h>
-#include <linux/amba/mmci.h>
-#include <linux/io.h>
-#include <linux/mtd/physmap.h>
-#include <linux/reboot.h>
-
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-#include <mach/hardware.h>
-#include <mach/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
- },
- {
- .virtual = IO_ADDRESS(VERSATILE_IB2_BASE),
- .pfn = __phys_to_pfn(VERSATILE_IB2_BASE),
- .length = SZ_64M,
- .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));
-}