diff options
Diffstat (limited to 'arch/arm/mach-integrator/integrator_cp.c')
| -rw-r--r-- | arch/arm/mach-integrator/integrator_cp.c | 528 |
1 files changed, 0 insertions, 528 deletions
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c deleted file mode 100644 index 8c60fcb08a98..000000000000 --- a/arch/arm/mach-integrator/integrator_cp.c +++ /dev/null @@ -1,528 +0,0 @@ -/* - * linux/arch/arm/mach-integrator/integrator_cp.c - * - * Copyright (C) 2003 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. - */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/list.h> -#include <linux/platform_device.h> -#include <linux/dma-mapping.h> -#include <linux/string.h> -#include <linux/device.h> -#include <linux/amba/bus.h> -#include <linux/amba/kmi.h> -#include <linux/amba/clcd.h> -#include <linux/amba/mmci.h> -#include <linux/io.h> -#include <linux/irqchip/versatile-fpga.h> -#include <linux/gfp.h> -#include <linux/mtd/physmap.h> -#include <linux/platform_data/clk-integrator.h> -#include <linux/of_irq.h> -#include <linux/of_address.h> -#include <linux/of_platform.h> -#include <linux/sys_soc.h> - -#include <mach/hardware.h> -#include <mach/platform.h> -#include <asm/setup.h> -#include <asm/mach-types.h> -#include <asm/hardware/arm_timer.h> -#include <asm/hardware/icst.h> - -#include <mach/cm.h> -#include <mach/lm.h> -#include <mach/irqs.h> - -#include <asm/mach/arch.h> -#include <asm/mach/irq.h> -#include <asm/mach/map.h> -#include <asm/mach/time.h> - -#include <asm/hardware/timer-sp.h> - -#include <plat/clcd.h> -#include <plat/sched_clock.h> - -#include "common.h" - -/* Base address to the CP controller */ -static void __iomem *intcp_con_base; - -#define INTCP_PA_FLASH_BASE 0x24000000 - -#define INTCP_PA_CLCD_BASE 0xc0000000 - -#define INTCP_FLASHPROG 0x04 -#define CINTEGRATOR_FLASHPROG_FLVPPEN (1 << 0) -#define CINTEGRATOR_FLASHPROG_FLWREN (1 << 1) - -/* - * Logical Physical - * f1000000 10000000 Core module registers - * f1100000 11000000 System controller registers - * f1200000 12000000 EBI registers - * f1300000 13000000 Counter/Timer - * f1400000 14000000 Interrupt controller - * f1600000 16000000 UART 0 - * f1700000 17000000 UART 1 - * f1a00000 1a000000 Debug LEDs - * fc900000 c9000000 GPIO - * fca00000 ca000000 SIC - * fcb00000 cb000000 CP system control - */ - -static struct map_desc intcp_io_desc[] __initdata __maybe_unused = { - { - .virtual = IO_ADDRESS(INTEGRATOR_HDR_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_HDR_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_EBI_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_EBI_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_CT_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_CT_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_IC_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_IC_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_UART0_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_UART0_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_DBG_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_DBG_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_CP_GPIO_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_CP_GPIO_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_CP_SIC_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_CP_SIC_BASE), - .length = SZ_4K, - .type = MT_DEVICE - } -}; - -static void __init intcp_map_io(void) -{ - iotable_init(intcp_io_desc, ARRAY_SIZE(intcp_io_desc)); -} - -/* - * Flash handling. - */ -static int intcp_flash_init(struct platform_device *dev) -{ - u32 val; - - val = readl(intcp_con_base + INTCP_FLASHPROG); - val |= CINTEGRATOR_FLASHPROG_FLWREN; - writel(val, intcp_con_base + INTCP_FLASHPROG); - - return 0; -} - -static void intcp_flash_exit(struct platform_device *dev) -{ - u32 val; - - val = readl(intcp_con_base + INTCP_FLASHPROG); - val &= ~(CINTEGRATOR_FLASHPROG_FLVPPEN|CINTEGRATOR_FLASHPROG_FLWREN); - writel(val, intcp_con_base + INTCP_FLASHPROG); -} - -static void intcp_flash_set_vpp(struct platform_device *pdev, int on) -{ - u32 val; - - val = readl(intcp_con_base + INTCP_FLASHPROG); - if (on) - val |= CINTEGRATOR_FLASHPROG_FLVPPEN; - else - val &= ~CINTEGRATOR_FLASHPROG_FLVPPEN; - writel(val, intcp_con_base + INTCP_FLASHPROG); -} - -static struct physmap_flash_data intcp_flash_data = { - .width = 4, - .init = intcp_flash_init, - .exit = intcp_flash_exit, - .set_vpp = intcp_flash_set_vpp, -}; - -/* - * It seems that the card insertion interrupt remains active after - * we've acknowledged it. We therefore ignore the interrupt, and - * rely on reading it from the SIC. This also means that we must - * clear the latched interrupt. - */ -static unsigned int mmc_status(struct device *dev) -{ - unsigned int status = readl(__io_address(0xca000000 + 4)); - writel(8, intcp_con_base + 8); - - return status & 8; -} - -static struct mmci_platform_data mmc_data = { - .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, - .status = mmc_status, - .gpio_wp = -1, - .gpio_cd = -1, -}; - -/* - * CLCD support - */ -/* - * Ensure VGA is selected. - */ -static void cp_clcd_enable(struct clcd_fb *fb) -{ - struct fb_var_screeninfo *var = &fb->fb.var; - u32 val = CM_CTRL_STATIC1 | CM_CTRL_STATIC2; - - if (var->bits_per_pixel <= 8 || - (var->bits_per_pixel == 16 && var->green.length == 5)) - /* Pseudocolor, RGB555, BGR555 */ - val |= CM_CTRL_LCDMUXSEL_VGA555_TFT555; - else if (fb->fb.var.bits_per_pixel <= 16) - /* truecolor RGB565 */ - val |= CM_CTRL_LCDMUXSEL_VGA565_TFT555; - else - val = 0; /* no idea for this, don't trust the docs */ - - cm_control(CM_CTRL_LCDMUXSEL_MASK| - CM_CTRL_LCDEN0| - CM_CTRL_LCDEN1| - CM_CTRL_STATIC1| - CM_CTRL_STATIC2| - CM_CTRL_STATIC| - CM_CTRL_n24BITEN, val); -} - -static int cp_clcd_setup(struct clcd_fb *fb) -{ - fb->panel = versatile_clcd_get_panel("VGA"); - if (!fb->panel) - return -EINVAL; - - return versatile_clcd_setup_dma(fb, SZ_1M); -} - -static struct clcd_board clcd_data = { - .name = "Integrator/CP", - .caps = CLCD_CAP_5551 | CLCD_CAP_RGB565 | CLCD_CAP_888, - .check = clcdfb_check, - .decode = clcdfb_decode, - .enable = cp_clcd_enable, - .setup = cp_clcd_setup, - .mmap = versatile_clcd_mmap_dma, - .remove = versatile_clcd_remove_dma, -}; - -#define REFCOUNTER (__io_address(INTEGRATOR_HDR_BASE) + 0x28) - -static void __init intcp_init_early(void) -{ -#ifdef CONFIG_PLAT_VERSATILE_SCHED_CLOCK - versatile_sched_clock_init(REFCOUNTER, 24000000); -#endif -} - -#ifdef CONFIG_OF -static const struct of_device_id fpga_irq_of_match[] __initconst = { - { .compatible = "arm,versatile-fpga-irq", .data = fpga_irq_of_init, }, - { /* Sentinel */ } -}; - -static void __init intcp_init_irq_of(void) -{ - of_irq_init(fpga_irq_of_match); - integrator_clk_init(true); -} - -/* - * For the Device Tree, add in the UART, MMC and CLCD specifics as AUXDATA - * and enforce the bus names since these are used for clock lookups. - */ -static struct of_dev_auxdata intcp_auxdata_lookup[] __initdata = { - OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_RTC_BASE, - "rtc", NULL), - OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART0_BASE, - "uart0", NULL), - OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART1_BASE, - "uart1", NULL), - OF_DEV_AUXDATA("arm,primecell", KMI0_BASE, - "kmi0", NULL), - OF_DEV_AUXDATA("arm,primecell", KMI1_BASE, - "kmi1", NULL), - OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_CP_MMC_BASE, - "mmci", &mmc_data), - OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_CP_AACI_BASE, - "aaci", &mmc_data), - OF_DEV_AUXDATA("arm,primecell", INTCP_PA_CLCD_BASE, - "clcd", &clcd_data), - OF_DEV_AUXDATA("cfi-flash", INTCP_PA_FLASH_BASE, - "physmap-flash", &intcp_flash_data), - { /* sentinel */ }, -}; - -static void __init intcp_init_of(void) -{ - struct device_node *root; - struct device_node *cpcon; - struct device *parent; - struct soc_device *soc_dev; - struct soc_device_attribute *soc_dev_attr; - u32 intcp_sc_id; - int err; - - /* Here we create an SoC device for the root node */ - root = of_find_node_by_path("/"); - if (!root) - return; - cpcon = of_find_node_by_path("/cpcon"); - if (!cpcon) - return; - - intcp_con_base = of_iomap(cpcon, 0); - if (!intcp_con_base) - return; - - intcp_sc_id = readl(intcp_con_base); - - soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); - if (!soc_dev_attr) - return; - - err = of_property_read_string(root, "compatible", - &soc_dev_attr->soc_id); - if (err) - return; - err = of_property_read_string(root, "model", &soc_dev_attr->machine); - if (err) - return; - soc_dev_attr->family = "Integrator"; - soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%c", - 'A' + (intcp_sc_id & 0x0f)); - - soc_dev = soc_device_register(soc_dev_attr); - if (IS_ERR(soc_dev)) { - kfree(soc_dev_attr->revision); - kfree(soc_dev_attr); - return; - } - - parent = soc_device_to_device(soc_dev); - integrator_init_sysfs(parent, intcp_sc_id); - of_platform_populate(root, of_default_bus_match_table, - intcp_auxdata_lookup, parent); -} - -static const char * intcp_dt_board_compat[] = { - "arm,integrator-cp", - NULL, -}; - -DT_MACHINE_START(INTEGRATOR_CP_DT, "ARM Integrator/CP (Device Tree)") - .reserve = integrator_reserve, - .map_io = intcp_map_io, - .init_early = intcp_init_early, - .init_irq = intcp_init_irq_of, - .handle_irq = fpga_handle_irq, - .init_machine = intcp_init_of, - .restart = integrator_restart, - .dt_compat = intcp_dt_board_compat, -MACHINE_END - -#endif - -#ifdef CONFIG_ATAGS - -/* - * For the ATAG boot some static mappings are needed. This will - * go away with the ATAG support down the road. - */ - -static struct map_desc intcp_io_desc_atag[] __initdata = { - { - .virtual = IO_ADDRESS(INTEGRATOR_CP_CTL_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_CP_CTL_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, -}; - -static void __init intcp_map_io_atag(void) -{ - iotable_init(intcp_io_desc_atag, ARRAY_SIZE(intcp_io_desc_atag)); - intcp_con_base = __io_address(INTEGRATOR_CP_CTL_BASE); - intcp_map_io(); -} - - -/* - * This is where non-devicetree initialization code is collected and stashed - * for eventual deletion. - */ - -#define INTCP_FLASH_SIZE SZ_32M - -static struct resource intcp_flash_resource = { - .start = INTCP_PA_FLASH_BASE, - .end = INTCP_PA_FLASH_BASE + INTCP_FLASH_SIZE - 1, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device intcp_flash_device = { - .name = "physmap-flash", - .id = 0, - .dev = { - .platform_data = &intcp_flash_data, - }, - .num_resources = 1, - .resource = &intcp_flash_resource, -}; - -#define INTCP_ETH_SIZE 0x10 - -static struct resource smc91x_resources[] = { - [0] = { - .start = INTEGRATOR_CP_ETH_BASE, - .end = INTEGRATOR_CP_ETH_BASE + INTCP_ETH_SIZE - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_CP_ETHINT, - .end = IRQ_CP_ETHINT, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device smc91x_device = { - .name = "smc91x", - .id = 0, - .num_resources = ARRAY_SIZE(smc91x_resources), - .resource = smc91x_resources, -}; - -static struct platform_device *intcp_devs[] __initdata = { - &intcp_flash_device, - &smc91x_device, -}; - -#define INTCP_VA_CIC_BASE __io_address(INTEGRATOR_HDR_BASE + 0x40) -#define INTCP_VA_PIC_BASE __io_address(INTEGRATOR_IC_BASE) -#define INTCP_VA_SIC_BASE __io_address(INTEGRATOR_CP_SIC_BASE) - -static void __init intcp_init_irq(void) -{ - u32 pic_mask, cic_mask, sic_mask; - - /* These masks are for the HW IRQ registers */ - pic_mask = ~((~0u) << (11 - 0)); - pic_mask |= (~((~0u) << (29 - 22))) << 22; - cic_mask = ~((~0u) << (1 + IRQ_CIC_END - IRQ_CIC_START)); - sic_mask = ~((~0u) << (1 + IRQ_SIC_END - IRQ_SIC_START)); - - /* - * Disable all interrupt sources - */ - writel(0xffffffff, INTCP_VA_PIC_BASE + IRQ_ENABLE_CLEAR); - writel(0xffffffff, INTCP_VA_PIC_BASE + FIQ_ENABLE_CLEAR); - writel(0xffffffff, INTCP_VA_CIC_BASE + IRQ_ENABLE_CLEAR); - writel(0xffffffff, INTCP_VA_CIC_BASE + FIQ_ENABLE_CLEAR); - writel(sic_mask, INTCP_VA_SIC_BASE + IRQ_ENABLE_CLEAR); - writel(sic_mask, INTCP_VA_SIC_BASE + FIQ_ENABLE_CLEAR); - - fpga_irq_init(INTCP_VA_PIC_BASE, "PIC", IRQ_PIC_START, - -1, pic_mask, NULL); - - fpga_irq_init(INTCP_VA_CIC_BASE, "CIC", IRQ_CIC_START, - -1, cic_mask, NULL); - - fpga_irq_init(INTCP_VA_SIC_BASE, "SIC", IRQ_SIC_START, - IRQ_CP_CPPLDINT, sic_mask, NULL); - - integrator_clk_init(true); -} - -#define TIMER0_VA_BASE __io_address(INTEGRATOR_TIMER0_BASE) -#define TIMER1_VA_BASE __io_address(INTEGRATOR_TIMER1_BASE) -#define TIMER2_VA_BASE __io_address(INTEGRATOR_TIMER2_BASE) - -static void __init cp_timer_init(void) -{ - writel(0, TIMER0_VA_BASE + TIMER_CTRL); - writel(0, TIMER1_VA_BASE + TIMER_CTRL); - writel(0, TIMER2_VA_BASE + TIMER_CTRL); - - sp804_clocksource_init(TIMER2_VA_BASE, "timer2"); - sp804_clockevents_init(TIMER1_VA_BASE, IRQ_TIMERINT1, "timer1"); -} - -#define INTEGRATOR_CP_MMC_IRQS { IRQ_CP_MMCIINT0, IRQ_CP_MMCIINT1 } -#define INTEGRATOR_CP_AACI_IRQS { IRQ_CP_AACIINT } - -static AMBA_APB_DEVICE(mmc, "mmci", 0, INTEGRATOR_CP_MMC_BASE, - INTEGRATOR_CP_MMC_IRQS, &mmc_data); - -static AMBA_APB_DEVICE(aaci, "aaci", 0, INTEGRATOR_CP_AACI_BASE, - INTEGRATOR_CP_AACI_IRQS, NULL); - -static AMBA_AHB_DEVICE(clcd, "clcd", 0, INTCP_PA_CLCD_BASE, - { IRQ_CP_CLCDCINT }, &clcd_data); - -static struct amba_device *amba_devs[] __initdata = { - &mmc_device, - &aaci_device, - &clcd_device, -}; - -static void __init intcp_init(void) -{ - int i; - - platform_add_devices(intcp_devs, ARRAY_SIZE(intcp_devs)); - - for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { - struct amba_device *d = amba_devs[i]; - amba_device_register(d, &iomem_resource); - } - integrator_init(true); -} - -MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP") - /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ - .atag_offset = 0x100, - .reserve = integrator_reserve, - .map_io = intcp_map_io_atag, - .init_early = intcp_init_early, - .init_irq = intcp_init_irq, - .handle_irq = fpga_handle_irq, - .init_time = cp_timer_init, - .init_machine = intcp_init, - .restart = integrator_restart, -MACHINE_END - -#endif |