diff options
Diffstat (limited to 'arch/arm/mach-versatile/core.c')
| -rw-r--r-- | arch/arm/mach-versatile/core.c | 808 |
1 files changed, 0 insertions, 808 deletions
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c deleted file mode 100644 index 23a04fe5d2ad..000000000000 --- a/arch/arm/mach-versatile/core.c +++ /dev/null @@ -1,808 +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/irqdomain.h> -#include <linux/of_address.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/pl061.h> -#include <linux/amba/mmci.h> -#include <linux/amba/pl022.h> -#include <linux/io.h> -#include <linux/irqchip/arm-vic.h> -#include <linux/irqchip/versatile-fpga.h> -#include <linux/gfp.h> -#include <linux/clkdev.h> -#include <linux/mtd/physmap.h> -#include <linux/bitops.h> -#include <linux/reboot.h> - -#include <clocksource/timer-sp804.h> - -#include <asm/irq.h> -#include <asm/hardware/icst.h> -#include <asm/mach-types.h> - -#include <asm/mach/arch.h> -#include <asm/mach/irq.h> -#include <asm/mach/time.h> -#include <asm/mach/map.h> -#include <mach/hardware.h> -#include <mach/platform.h> - -#include <plat/sched_clock.h> - -#include "core.h" - -/* - * All IO addresses are mapped onto VA 0xFFFx.xxxx, where x.xxxx - * is the (PA >> 12). - * - * Setup a VA for the Versatile Vectored Interrupt Controller. - */ -#define VA_VIC_BASE __io_address(VERSATILE_VIC_BASE) -#define VA_SIC_BASE __io_address(VERSATILE_SIC_BASE) - -/* These PIC IRQs are valid in each configuration */ -#define PIC_VALID_ALL BIT(SIC_INT_KMI0) | BIT(SIC_INT_KMI1) | \ - BIT(SIC_INT_SCI3) | BIT(SIC_INT_UART3) | \ - BIT(SIC_INT_CLCD) | BIT(SIC_INT_TOUCH) | \ - BIT(SIC_INT_KEYPAD) | BIT(SIC_INT_DoC) | \ - BIT(SIC_INT_USB) | BIT(SIC_INT_PCI0) | \ - BIT(SIC_INT_PCI1) | BIT(SIC_INT_PCI2) | \ - BIT(SIC_INT_PCI3) -#if 1 -#define IRQ_MMCI0A IRQ_VICSOURCE22 -#define IRQ_AACI IRQ_VICSOURCE24 -#define IRQ_ETH IRQ_VICSOURCE25 -#define PIC_MASK 0xFFD00000 -#define PIC_VALID PIC_VALID_ALL -#else -#define IRQ_MMCI0A IRQ_SIC_MMCI0A -#define IRQ_AACI IRQ_SIC_AACI -#define IRQ_ETH IRQ_SIC_ETH -#define PIC_MASK 0 -#define PIC_VALID PIC_VALID_ALL | BIT(SIC_INT_MMCI0A) | \ - BIT(SIC_INT_MMCI1A) | BIT(SIC_INT_AACI) | \ - BIT(SIC_INT_ETH) -#endif - -/* Lookup table for finding a DT node that represents the vic instance */ -static const struct of_device_id vic_of_match[] __initconst = { - { .compatible = "arm,versatile-vic", }, - {} -}; - -static const struct of_device_id sic_of_match[] __initconst = { - { .compatible = "arm,versatile-sic", }, - {} -}; - -void __init versatile_init_irq(void) -{ - struct device_node *np; - - np = of_find_matching_node_by_address(NULL, vic_of_match, - VERSATILE_VIC_BASE); - __vic_init(VA_VIC_BASE, 0, IRQ_VIC_START, ~0, 0, np); - - writel(~0, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR); - - np = of_find_matching_node_by_address(NULL, sic_of_match, - VERSATILE_SIC_BASE); - - fpga_irq_init(VA_SIC_BASE, "SIC", IRQ_SIC_START, - IRQ_VICSOURCE31, PIC_VALID, np); - - /* - * Interrupts on secondary controller from 0 to 8 are routed to - * source 31 on PIC. - * Interrupts from 21 to 31 are routed directly to the VIC on - * the corresponding number on primary controller. This is controlled - * by setting PIC_ENABLEx. - */ - writel(PIC_MASK, VA_SIC_BASE + SIC_INT_PIC_ENABLE); -} - -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_SIC_BASE), - .pfn = __phys_to_pfn(VERSATILE_SIC_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(VERSATILE_VIC_BASE), - .pfn = __phys_to_pfn(VERSATILE_VIC_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 - }, -#ifdef CONFIG_MACH_VERSATILE_AB - { - .virtual = IO_ADDRESS(VERSATILE_IB2_BASE), - .pfn = __phys_to_pfn(VERSATILE_IB2_BASE), - .length = SZ_64M, - .type = MT_DEVICE - }, -#endif -#ifdef CONFIG_DEBUG_LL - { - .virtual = IO_ADDRESS(VERSATILE_UART0_BASE), - .pfn = __phys_to_pfn(VERSATILE_UART0_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, -#endif -#ifdef CONFIG_PCI - { - .virtual = IO_ADDRESS(VERSATILE_PCI_CORE_BASE), - .pfn = __phys_to_pfn(VERSATILE_PCI_CORE_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = (unsigned long)VERSATILE_PCI_VIRT_BASE, - .pfn = __phys_to_pfn(VERSATILE_PCI_BASE), - .length = VERSATILE_PCI_BASE_SIZE, - .type = MT_DEVICE - }, { - .virtual = (unsigned long)VERSATILE_PCI_CFG_VIRT_BASE, - .pfn = __phys_to_pfn(VERSATILE_PCI_CFG_BASE), - .length = VERSATILE_PCI_CFG_BASE_SIZE, - .type = MT_DEVICE - }, -#endif -}; - -void __init versatile_map_io(void) -{ - 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, -}; - -static struct platform_device versatile_flash_device = { - .name = "physmap-flash", - .id = 0, - .dev = { - .platform_data = &versatile_flash_data, - }, - .num_resources = 1, - .resource = &versatile_flash_resource, -}; - -static struct resource smc91x_resources[] = { - [0] = { - .start = VERSATILE_ETH_BASE, - .end = VERSATILE_ETH_BASE + SZ_64K - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_ETH, - .end = IRQ_ETH, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device smc91x_device = { - .name = "smc91x", - .id = 0, - .num_resources = ARRAY_SIZE(smc91x_resources), - .resource = smc91x_resources, -}; - -static struct resource versatile_i2c_resource = { - .start = VERSATILE_I2C_BASE, - .end = VERSATILE_I2C_BASE + SZ_4K - 1, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device versatile_i2c_device = { - .name = "versatile-i2c", - .id = 0, - .num_resources = 1, - .resource = &versatile_i2c_resource, -}; - -static struct i2c_board_info versatile_i2c_board_info[] = { - { - I2C_BOARD_INFO("ds1338", 0xd0 >> 1), - }, -}; - -static int __init versatile_i2c_init(void) -{ - return i2c_register_board_info(0, versatile_i2c_board_info, - ARRAY_SIZE(versatile_i2c_board_info)); -} -arch_initcall(versatile_i2c_init); - -#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 resource char_lcd_resources[] = { - { - .start = VERSATILE_CHAR_LCD_BASE, - .end = (VERSATILE_CHAR_LCD_BASE + SZ_4K - 1), - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device char_lcd_device = { - .name = "arm-charlcd", - .id = -1, - .num_resources = ARRAY_SIZE(char_lcd_resources), - .resource = char_lcd_resources, -}; - -static struct resource leds_resources[] = { - { - .start = VERSATILE_SYS_BASE + VERSATILE_SYS_LED_OFFSET, - .end = VERSATILE_SYS_BASE + VERSATILE_SYS_LED_OFFSET + 4, - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device leds_device = { - .name = "versatile-leds", - .id = -1, - .num_resources = ARRAY_SIZE(leds_resources), - .resource = leds_resources, -}; - -/* - * Clock handling - */ -static const struct icst_params versatile_oscvco_params = { - .ref = 24000000, - .vco_max = ICST307_VCO_MAX, - .vco_min = ICST307_VCO_MIN, - .vd_min = 4 + 8, - .vd_max = 511 + 8, - .rd_min = 1 + 2, - .rd_max = 127 + 2, - .s2div = icst307_s2div, - .idx2s = icst307_idx2s, -}; - -static void versatile_oscvco_set(struct clk *clk, struct icst_vco vco) -{ - void __iomem *sys_lock = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LOCK_OFFSET; - u32 val; - - val = readl(clk->vcoreg) & ~0x7ffff; - val |= vco.v | (vco.r << 9) | (vco.s << 16); - - writel(0xa05f, sys_lock); - writel(val, clk->vcoreg); - writel(0, sys_lock); -} - -static const struct clk_ops osc4_clk_ops = { - .round = icst_clk_round, - .set = icst_clk_set, - .setvco = versatile_oscvco_set, -}; - -static struct clk osc4_clk = { - .ops = &osc4_clk_ops, - .params = &versatile_oscvco_params, -}; - -/* - * These are fixed clocks. - */ -static struct clk ref24_clk = { - .rate = 24000000, -}; - -static struct clk sp804_clk = { - .rate = 1000000, -}; - -static struct clk dummy_apb_pclk; - -static struct clk_lookup lookups[] = { - { /* AMBA bus clock */ - .con_id = "apb_pclk", - .clk = &dummy_apb_pclk, - }, { /* UART0 */ - .dev_id = "dev:f1", - .clk = &ref24_clk, - }, { /* UART1 */ - .dev_id = "dev:f2", - .clk = &ref24_clk, - }, { /* UART2 */ - .dev_id = "dev:f3", - .clk = &ref24_clk, - }, { /* UART3 */ - .dev_id = "fpga:09", - .clk = &ref24_clk, - }, { /* KMI0 */ - .dev_id = "fpga:06", - .clk = &ref24_clk, - }, { /* KMI1 */ - .dev_id = "fpga:07", - .clk = &ref24_clk, - }, { /* MMC0 */ - .dev_id = "fpga:05", - .clk = &ref24_clk, - }, { /* MMC1 */ - .dev_id = "fpga:0b", - .clk = &ref24_clk, - }, { /* SSP */ - .dev_id = "dev:f4", - .clk = &ref24_clk, - }, { /* CLCD */ - .dev_id = "dev:20", - .clk = &osc4_clk, - }, { /* SP804 timers */ - .dev_id = "sp804", - .clk = &sp804_clk, - }, -}; - -/* - * 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); - -#ifdef CONFIG_MACH_VERSATILE_AB - /* - * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light off - */ - if (machine_is_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); - } -#endif -} - -/* - * 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); - -#ifdef CONFIG_MACH_VERSATILE_AB - /* - * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light on - */ - if (machine_is_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); - } -#endif -} - -/* - * 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, -}; - -static struct pl061_platform_data gpio0_plat_data = { - .gpio_base = 0, - .irq_base = IRQ_GPIO0_START, -}; - -static struct pl061_platform_data gpio1_plat_data = { - .gpio_base = 8, - .irq_base = IRQ_GPIO1_START, -}; - -static struct pl061_platform_data gpio2_plat_data = { - .gpio_base = 16, - .irq_base = IRQ_GPIO2_START, -}; - -static struct pl061_platform_data gpio3_plat_data = { - .gpio_base = 24, - .irq_base = IRQ_GPIO3_START, -}; - -static struct pl022_ssp_controller ssp0_plat_data = { - .bus_id = 0, - .enable_dma = 0, - .num_chipselect = 1, -}; - -#define AACI_IRQ { IRQ_AACI } -#define MMCI0_IRQ { IRQ_MMCI0A,IRQ_SIC_MMCI0B } -#define KMI0_IRQ { IRQ_SIC_KMI0 } -#define KMI1_IRQ { IRQ_SIC_KMI1 } - -/* - * These devices are connected directly to the multi-layer AHB switch - */ -#define SMC_IRQ { } -#define MPMC_IRQ { } -#define CLCD_IRQ { IRQ_CLCDINT } -#define DMAC_IRQ { IRQ_DMAINT } - -/* - * These devices are connected via the core APB bridge - */ -#define SCTL_IRQ { } -#define WATCHDOG_IRQ { IRQ_WDOGINT } -#define GPIO0_IRQ { IRQ_GPIOINT0 } -#define GPIO1_IRQ { IRQ_GPIOINT1 } -#define GPIO2_IRQ { IRQ_GPIOINT2 } -#define GPIO3_IRQ { IRQ_GPIOINT3 } -#define RTC_IRQ { IRQ_RTCINT } - -/* - * These devices are connected via the DMA APB bridge - */ -#define SCI_IRQ { IRQ_SCIINT } -#define UART0_IRQ { IRQ_UARTINT0 } -#define UART1_IRQ { IRQ_UARTINT1 } -#define UART2_IRQ { IRQ_UARTINT2 } -#define SSP_IRQ { IRQ_SSPINT } - -/* FPGA Primecells */ -APB_DEVICE(aaci, "fpga:04", AACI, NULL); -APB_DEVICE(mmc0, "fpga:05", MMCI0, &mmc0_plat_data); -APB_DEVICE(kmi0, "fpga:06", KMI0, NULL); -APB_DEVICE(kmi1, "fpga:07", KMI1, NULL); - -/* DevChip Primecells */ -AHB_DEVICE(smc, "dev:00", SMC, NULL); -AHB_DEVICE(mpmc, "dev:10", MPMC, NULL); -AHB_DEVICE(clcd, "dev:20", CLCD, &clcd_plat_data); -AHB_DEVICE(dmac, "dev:30", DMAC, NULL); -APB_DEVICE(sctl, "dev:e0", SCTL, NULL); -APB_DEVICE(wdog, "dev:e1", WATCHDOG, NULL); -APB_DEVICE(gpio0, "dev:e4", GPIO0, &gpio0_plat_data); -APB_DEVICE(gpio1, "dev:e5", GPIO1, &gpio1_plat_data); -APB_DEVICE(gpio2, "dev:e6", GPIO2, &gpio2_plat_data); -APB_DEVICE(gpio3, "dev:e7", GPIO3, &gpio3_plat_data); -APB_DEVICE(rtc, "dev:e8", RTC, NULL); -APB_DEVICE(sci0, "dev:f0", SCI, NULL); -APB_DEVICE(uart0, "dev:f1", UART0, NULL); -APB_DEVICE(uart1, "dev:f2", UART1, NULL); -APB_DEVICE(uart2, "dev:f3", UART2, NULL); -APB_DEVICE(ssp0, "dev:f4", SSP, &ssp0_plat_data); - -static struct amba_device *amba_devs[] __initdata = { - &dmac_device, - &uart0_device, - &uart1_device, - &uart2_device, - &smc_device, - &mpmc_device, - &clcd_device, - &sctl_device, - &wdog_device, - &gpio0_device, - &gpio1_device, - &gpio2_device, - &gpio3_device, - &rtc_device, - &sci0_device, - &ssp0_device, - &aaci_device, - &mmc0_device, - &kmi0_device, - &kmi1_device, -}; - -#ifdef CONFIG_OF -/* - * 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_KMI0_BASE, "fpga:06", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_KMI1_BASE, "fpga:07", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART3_BASE, "fpga:09", NULL), - /* FIXME: this is buggy, the platform data is needed for this MMC instance too */ - OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI1_BASE, "fpga:0b", NULL), - - OF_DEV_AUXDATA("arm,primecell", VERSATILE_CLCD_BASE, "dev:20", &clcd_plat_data), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART0_BASE, "dev:f1", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART1_BASE, "dev:f2", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART2_BASE, "dev:f3", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_SSP_BASE, "dev:f4", &ssp0_plat_data), - -#if 0 - /* - * These entries are unnecessary because no clocks referencing - * them. I've left them in for now as place holders in case - * any of them need to be added back, but they should be - * removed before actually committing this patch. --gcl - */ - OF_DEV_AUXDATA("arm,primecell", VERSATILE_AACI_BASE, "fpga:04", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCI1_BASE, "fpga:0a", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_SMC_BASE, "dev:00", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_MPMC_BASE, "dev:10", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_DMAC_BASE, "dev:30", NULL), - - OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCTL_BASE, "dev:e0", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_WATCHDOG_BASE, "dev:e1", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO0_BASE, "dev:e4", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO1_BASE, "dev:e5", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO2_BASE, "dev:e6", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO3_BASE, "dev:e7", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_RTC_BASE, "dev:e8", NULL), - OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCI_BASE, "dev:f0", NULL), -#endif - {} -}; -#endif - -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; - void __iomem *sys = __io_address(VERSATILE_SYS_BASE); - - osc4_clk.vcoreg = sys + VERSATILE_SYS_OSCCLCD_OFFSET; - clkdev_add_table(lookups, ARRAY_SIZE(lookups)); - - versatile_sched_clock_init(sys + VERSATILE_SYS_24MHz_OFFSET, 24000000); - - /* - * 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)); -} - -void __init versatile_init(void) -{ - int i; - - platform_device_register(&versatile_flash_device); - platform_device_register(&versatile_i2c_device); - platform_device_register(&smc91x_device); - platform_device_register(&char_lcd_device); - platform_device_register(&leds_device); - - for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { - struct amba_device *d = amba_devs[i]; - amba_device_register(d, &iomem_resource); - } -} - -/* - * Where is the timer (VA)? - */ -#define TIMER0_VA_BASE __io_address(VERSATILE_TIMER0_1_BASE) -#define TIMER1_VA_BASE (__io_address(VERSATILE_TIMER0_1_BASE) + 0x20) -#define TIMER2_VA_BASE __io_address(VERSATILE_TIMER2_3_BASE) -#define TIMER3_VA_BASE (__io_address(VERSATILE_TIMER2_3_BASE) + 0x20) - -/* - * Set up timer interrupt, and return the current time in seconds. - */ -void __init versatile_timer_init(void) -{ - - /* - * Initialise to a known state (all timers off) - */ - sp804_timer_disable(TIMER0_VA_BASE); - sp804_timer_disable(TIMER1_VA_BASE); - sp804_timer_disable(TIMER2_VA_BASE); - sp804_timer_disable(TIMER3_VA_BASE); - - sp804_clocksource_init(TIMER3_VA_BASE, "timer3"); - sp804_clockevents_init(TIMER0_VA_BASE, IRQ_TIMERINT0_1, "timer0"); -} |