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- /*
- * 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/amba/pl061.h>
- #include <linux/amba/mmci.h>
- #include <linux/amba/pl022.h>
- #include <linux/io.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 <asm/irq.h>
- #include <asm/hardware/arm_timer.h>
- #include <asm/hardware/icst.h>
- #include <asm/hardware/vic.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 <asm/hardware/timer-sp.h>
- #include <plat/clcd.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, 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 = {
- {
- .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),
|