[net-next-2.6.git] / arch / arm / mach-integrator / integrator_cp.c

/*
 *  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/slab.h>
#include <linux/string.h>
#include <linux/sysdev.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 <asm/clkdev.h>
#include <mach/clkdev.h>
#include <mach/hardware.h>
#include <mach/platform.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/hardware/icst525.h>

#include <mach/cm.h>
#include <mach/lm.h>

#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/irq.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>

#include "common.h"

#define INTCP_PA_MMC_BASE		0x1c000000
#define INTCP_PA_AACI_BASE		0x1d000000

#define INTCP_PA_FLASH_BASE		0x24000000
#define INTCP_FLASH_SIZE		SZ_32M

#define INTCP_PA_CLCD_BASE		0xc0000000

#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(0xca000000)

#define INTCP_PA_ETH_BASE		0xc8000000
#define INTCP_ETH_SIZE			0x10

#define INTCP_VA_CTRL_BASE		IO_ADDRESS(0xcb000000)
#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
 * f1b00000	1b000000	GPIO
 */

static struct map_desc intcp_io_desc[] __initdata = {
	{
		.virtual	= IO_ADDRESS(INTEGRATOR_HDR_BASE),
		.pfn		= __phys_to_pfn(INTEGRATOR_HDR_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE
	}, {
		.virtual	= IO_ADDRESS(INTEGRATOR_SC_BASE),
		.pfn		= __phys_to_pfn(INTEGRATOR_SC_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_UART1_BASE),
		.pfn		= __phys_to_pfn(INTEGRATOR_UART1_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_GPIO_BASE),
		.pfn		= __phys_to_pfn(INTEGRATOR_GPIO_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE
	}, {
		.virtual	= IO_ADDRESS(0xca000000),
		.pfn		= __phys_to_pfn(0xca000000),
		.length		= SZ_4K,
		.type		= MT_DEVICE
	}, {
		.virtual	= IO_ADDRESS(0xcb000000),
		.pfn		= __phys_to_pfn(0xcb000000),
		.length		= SZ_4K,
		.type		= MT_DEVICE
	}
};

static void __init intcp_map_io(void)
{
	iotable_init(intcp_io_desc, ARRAY_SIZE(intcp_io_desc));
}

#define cic_writel	__raw_writel
#define cic_readl	__raw_readl
#define pic_writel	__raw_writel
#define pic_readl	__raw_readl
#define sic_writel	__raw_writel
#define sic_readl	__raw_readl

static void cic_mask_irq(unsigned int irq)
{
	irq -= IRQ_CIC_START;
	cic_writel(1 << irq, INTCP_VA_CIC_BASE + IRQ_ENABLE_CLEAR);
}

static void cic_unmask_irq(unsigned int irq)
{
	irq -= IRQ_CIC_START;
	cic_writel(1 << irq, INTCP_VA_CIC_BASE + IRQ_ENABLE_SET);
}

static struct irq_chip cic_chip = {
	.name	= "CIC",
	.ack	= cic_mask_irq,
	.mask	= cic_mask_irq,
	.unmask	= cic_unmask_irq,
};

static void pic_mask_irq(unsigned int irq)
{
	irq -= IRQ_PIC_START;
	pic_writel(1 << irq, INTCP_VA_PIC_BASE + IRQ_ENABLE_CLEAR);
}

static void pic_unmask_irq(unsigned int irq)
{
	irq -= IRQ_PIC_START;
	pic_writel(1 << irq, INTCP_VA_PIC_BASE + IRQ_ENABLE_SET);
}

static struct irq_chip pic_chip = {
	.name	= "PIC",
	.ack	= pic_mask_irq,
	.mask	= pic_mask_irq,
	.unmask = pic_unmask_irq,
};

static void sic_mask_irq(unsigned int irq)
{
	irq -= IRQ_SIC_START;
	sic_writel(1 << irq, INTCP_VA_SIC_BASE + IRQ_ENABLE_CLEAR);
}

static void sic_unmask_irq(unsigned int irq)
{
	irq -= IRQ_SIC_START;
	sic_writel(1 << irq, INTCP_VA_SIC_BASE + IRQ_ENABLE_SET);
}

static struct irq_chip sic_chip = {
	.name	= "SIC",
	.ack	= sic_mask_irq,
	.mask	= sic_mask_irq,
	.unmask	= sic_unmask_irq,
};

static void
sic_handle_irq(unsigned int irq, struct irq_desc *desc)
{
	unsigned long status = sic_readl(INTCP_VA_SIC_BASE + IRQ_STATUS);

	if (status == 0) {
		do_bad_IRQ(irq, desc);
		return;
	}

	do {
		irq = ffs(status) - 1;
		status &= ~(1 << irq);

		irq += IRQ_SIC_START;

		generic_handle_irq(irq);
	} while (status);
}

static void __init intcp_init_irq(void)
{
	unsigned int i;

	/*
	 * Disable all interrupt sources
	 */
	pic_writel(0xffffffff, INTCP_VA_PIC_BASE + IRQ_ENABLE_CLEAR);
	pic_writel(0xffffffff, INTCP_VA_PIC_BASE + FIQ_ENABLE_CLEAR);

	for (i = IRQ_PIC_START; i <= IRQ_PIC_END; i++) {
		if (i == 11)
			i = 22;
		if (i == 29)
			break;
		set_irq_chip(i, &pic_chip);
		set_irq_handler(i, handle_level_irq);
		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
	}

	cic_writel(0xffffffff, INTCP_VA_CIC_BASE + IRQ_ENABLE_CLEAR);
	cic_writel(0xffffffff, INTCP_VA_CIC_BASE + FIQ_ENABLE_CLEAR);

	for (i = IRQ_CIC_START; i <= IRQ_CIC_END; i++) {
		set_irq_chip(i, &cic_chip);
		set_irq_handler(i, handle_level_irq);
		set_irq_flags(i, IRQF_VALID);
	}

	sic_writel(0x00000fff, INTCP_VA_SIC_BASE + IRQ_ENABLE_CLEAR);
	sic_writel(0x00000fff, INTCP_VA_SIC_BASE + FIQ_ENABLE_CLEAR);

	for (i = IRQ_SIC_START; i <= IRQ_SIC_END; i++) {
		set_irq_chip(i, &sic_chip);
		set_irq_handler(i, handle_level_irq);
		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
	}

	set_irq_chained_handler(IRQ_CP_CPPLDINT, sic_handle_irq);
}

/*
 * Clock handling
 */
#define CM_LOCK (IO_ADDRESS(INTEGRATOR_HDR_BASE)+INTEGRATOR_HDR_LOCK_OFFSET)
#define CM_AUXOSC (IO_ADDRESS(INTEGRATOR_HDR_BASE)+0x1c)

static const struct icst525_params cp_auxvco_params = {
	.ref		= 24000,
	.vco_max	= 320000,
	.vd_min 	= 8,
	.vd_max 	= 263,
	.rd_min 	= 3,
	.rd_max 	= 65,
};

static void cp_auxvco_set(struct clk *clk, struct icst525_vco vco)
{
	u32 val;

	val = readl(CM_AUXOSC) & ~0x7ffff;
	val |= vco.v | (vco.r << 9) | (vco.s << 16);

	writel(0xa05f, CM_LOCK);
	writel(val, CM_AUXOSC);
	writel(0, CM_LOCK);
}

static struct clk cp_auxclk = {
	.params	= &cp_auxvco_params,
	.setvco = cp_auxvco_set,
};

static struct clk_lookup cp_lookups[] = {
	{	/* CLCD */
		.dev_id		= "mb:c0",
		.clk		= &cp_auxclk,
	},
};

/*
 * Flash handling.
 */
static int intcp_flash_init(void)
{
	u32 val;

	val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
	val |= CINTEGRATOR_FLASHPROG_FLWREN;
	writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);

	return 0;
}

static void intcp_flash_exit(void)
{
	u32 val;

	val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
	val &= ~(CINTEGRATOR_FLASHPROG_FLVPPEN|CINTEGRATOR_FLASHPROG_FLWREN);
	writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
}

static void intcp_flash_set_vpp(int on)
{
	u32 val;

	val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
	if (on)
		val |= CINTEGRATOR_FLASHPROG_FLVPPEN;
	else
		val &= ~CINTEGRATOR_FLASHPROG_FLVPPEN;
	writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
}

static struct flash_platform_data intcp_flash_data = {
	.map_name	= "cfi_probe",
	.width		= 4,
	.init		= intcp_flash_init,
	.exit		= intcp_flash_exit,
	.set_vpp	= intcp_flash_set_vpp,
};

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		= "armflash",
	.id		= 0,
	.dev		= {
		.platform_data	= &intcp_flash_data,
	},
	.num_resources	= 1,
	.resource	= &intcp_flash_resource,
};

static struct resource smc91x_resources[] = {
	[0] = {
		.start	= INTCP_PA_ETH_BASE,
		.end	= INTCP_PA_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,
};

/*
 * 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, IO_ADDRESS(0xcb000000) + 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,
};

static struct amba_device mmc_device = {
	.dev		= {
		.init_name = "mb:1c",
		.platform_data = &mmc_data,
	},
	.res		= {
		.start	= INTCP_PA_MMC_BASE,
		.end	= INTCP_PA_MMC_BASE + SZ_4K - 1,
		.flags	= IORESOURCE_MEM,
	},
	.irq		= { IRQ_CP_MMCIINT0, IRQ_CP_MMCIINT1 },
	.periphid	= 0,
};

static struct amba_device aaci_device = {
	.dev		= {
		.init_name = "mb:1d",
	},
	.res		= {
		.start	= INTCP_PA_AACI_BASE,
		.end	= INTCP_PA_AACI_BASE + SZ_4K - 1,
		.flags	= IORESOURCE_MEM,
	},
	.irq		= { IRQ_CP_AACIINT, NO_IRQ },
	.periphid	= 0,
};


/*
 * CLCD support
 */
static struct clcd_panel vga = {
	.mode		= {
		.name		= "VGA",
		.refresh	= 60,
		.xres		= 640,
		.yres		= 480,
		.pixclock	= 39721,
		.left_margin	= 40,
		.right_margin	= 24,
		.upper_margin	= 32,
		.lower_margin	= 11,
		.hsync_len	= 96,
		.vsync_len	= 2,
		.sync		= 0,
		.vmode		= FB_VMODE_NONINTERLACED,
	},
	.width		= -1,
	.height		= -1,
	.tim2		= TIM2_BCD | TIM2_IPC,
	.cntl		= CNTL_LCDTFT | CNTL_LCDVCOMP(1),
	.bpp		= 16,
	.grayscale	= 0,
};

/*
 * Ensure VGA is selected.
 */
static void cp_clcd_enable(struct clcd_fb *fb)
{
	u32 val;

	if (fb->fb.var.bits_per_pixel <= 8)
		val = CM_CTRL_LCDMUXSEL_VGA_8421BPP;
	else if (fb->fb.var.bits_per_pixel <= 16)
		val = CM_CTRL_LCDMUXSEL_VGA_16BPP
			| CM_CTRL_LCDEN0 | CM_CTRL_LCDEN1
			| CM_CTRL_STATIC1 | CM_CTRL_STATIC2;
	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 unsigned long framesize = SZ_1M;

static int cp_clcd_setup(struct clcd_fb *fb)
{
	dma_addr_t dma;

	fb->panel = &vga;

	fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize,
						    &dma, GFP_KERNEL);
	if (!fb->fb.screen_base) {
		printk(KERN_ERR "CLCD: unable to map framebuffer\n");
		return -ENOMEM;
	}

	fb->fb.fix.smem_start	= dma;
	fb->fb.fix.smem_len	= framesize;

	return 0;
}

static int cp_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
{
	return dma_mmap_writecombine(&fb->dev->dev, vma,
				     fb->fb.screen_base,
				     fb->fb.fix.smem_start,
				     fb->fb.fix.smem_len);
}

static void cp_clcd_remove(struct clcd_fb *fb)
{
	dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
			      fb->fb.screen_base, fb->fb.fix.smem_start);
}

static struct clcd_board clcd_data = {
	.name		= "Integrator/CP",
	.check		= clcdfb_check,
	.decode		= clcdfb_decode,
	.enable		= cp_clcd_enable,
	.setup		= cp_clcd_setup,
	.mmap		= cp_clcd_mmap,
	.remove		= cp_clcd_remove,
};

static struct amba_device clcd_device = {
	.dev		= {
		.init_name = "mb:c0",
		.coherent_dma_mask = ~0,
		.platform_data = &clcd_data,
	},
	.res		= {
		.start	= INTCP_PA_CLCD_BASE,
		.end	= INTCP_PA_CLCD_BASE + SZ_4K - 1,
		.flags	= IORESOURCE_MEM,
	},
	.dma_mask	= ~0,
	.irq		= { IRQ_CP_CLCDCINT, NO_IRQ },
	.periphid	= 0,
};

static struct amba_device *amba_devs[] __initdata = {
	&mmc_device,
	&aaci_device,
	&clcd_device,
};

static void __init intcp_init(void)
{
	int i;

	clkdev_add_table(cp_lookups, ARRAY_SIZE(cp_lookups));
	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);
	}
}

#define TIMER_CTRL_IE	(1 << 5)			/* Interrupt Enable */

static void __init intcp_timer_init(void)
{
	integrator_time_init(1000000 / HZ, TIMER_CTRL_IE);
}

static struct sys_timer cp_timer = {
	.init		= intcp_timer_init,
};

MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP")
	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
	.phys_io	= 0x16000000,
	.io_pg_offst	= ((0xf1600000) >> 18) & 0xfffc,
	.boot_params	= 0x00000100,
	.map_io		= intcp_map_io,
	.init_irq	= intcp_init_irq,
	.timer		= &cp_timer,
	.init_machine	= intcp_init,
MACHINE_END
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/arm/mach-integrator/integrator_cp.c
	3	*
	4	* Copyright (C) 2003 Deep Blue Solutions Ltd
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License.
	9	*/
	10	#include <linux/types.h>
	11	#include <linux/kernel.h>
	12	#include <linux/init.h>
	13	#include <linux/list.h>
d052d1be	14	#include <linux/platform_device.h>
1da177e4 LT	15	#include <linux/dma-mapping.h>
	16	#include <linux/slab.h>
	17	#include <linux/string.h>
	18	#include <linux/sysdev.h>
a62c80e5 RK	19	#include <linux/amba/bus.h>
	20	#include <linux/amba/kmi.h>
	21	#include <linux/amba/clcd.h>
6ef297f8	22	#include <linux/amba/mmci.h>
fced80c7	23	#include <linux/io.h>
1da177e4	24
d72fbdf0 RK	25	#include <asm/clkdev.h>
d72fbdf0 RK	26	#include <mach/clkdev.h>
a09e64fb	27	#include <mach/hardware.h>
a285edcf	28	#include <mach/platform.h>
1da177e4 LT	29	#include <asm/irq.h>
	30	#include <asm/setup.h>
	31	#include <asm/mach-types.h>
1da177e4 LT	32	#include <asm/hardware/icst525.h>
1da177e4 LT	33
a09e64fb RK	34	#include <mach/cm.h>
a09e64fb RK	35	#include <mach/lm.h>
1da177e4 LT	36
	37	#include <asm/mach/arch.h>
	38	#include <asm/mach/flash.h>
	39	#include <asm/mach/irq.h>
1da177e4 LT	40	#include <asm/mach/map.h>
	41	#include <asm/mach/time.h>
	42
	43	#include "common.h"
1da177e4 LT	44
	45	#define INTCP_PA_MMC_BASE 0x1c000000
	46	#define INTCP_PA_AACI_BASE 0x1d000000
	47
	48	#define INTCP_PA_FLASH_BASE 0x24000000
	49	#define INTCP_FLASH_SIZE SZ_32M
	50
	51	#define INTCP_PA_CLCD_BASE 0xc0000000
	52
365f7a43 CM	53	#define INTCP_VA_CIC_BASE IO_ADDRESS(INTEGRATOR_HDR_BASE) + 0x40
	54	#define INTCP_VA_PIC_BASE IO_ADDRESS(INTEGRATOR_IC_BASE)
	55	#define INTCP_VA_SIC_BASE IO_ADDRESS(0xca000000)
1da177e4 LT	56
	57	#define INTCP_PA_ETH_BASE 0xc8000000
	58	#define INTCP_ETH_SIZE 0x10
	59
365f7a43	60	#define INTCP_VA_CTRL_BASE IO_ADDRESS(0xcb000000)
1da177e4 LT	61	#define INTCP_FLASHPROG 0x04
	62	#define CINTEGRATOR_FLASHPROG_FLVPPEN (1 << 0)
	63	#define CINTEGRATOR_FLASHPROG_FLWREN (1 << 1)
	64
	65	/*
	66	* Logical Physical
	67	* f1000000 10000000 Core module registers
	68	* f1100000 11000000 System controller registers
	69	* f1200000 12000000 EBI registers
	70	* f1300000 13000000 Counter/Timer
	71	* f1400000 14000000 Interrupt controller
	72	* f1600000 16000000 UART 0
	73	* f1700000 17000000 UART 1
	74	* f1a00000 1a000000 Debug LEDs
	75	* f1b00000 1b000000 GPIO
	76	*/
	77
	78	static struct map_desc intcp_io_desc[] __initdata = {
c8d27298 DS	79	{
	80	.virtual = IO_ADDRESS(INTEGRATOR_HDR_BASE),
	81	.pfn = __phys_to_pfn(INTEGRATOR_HDR_BASE),
	82	.length = SZ_4K,
	83	.type = MT_DEVICE
	84	}, {
	85	.virtual = IO_ADDRESS(INTEGRATOR_SC_BASE),
	86	.pfn = __phys_to_pfn(INTEGRATOR_SC_BASE),
	87	.length = SZ_4K,
	88	.type = MT_DEVICE
	89	}, {
	90	.virtual = IO_ADDRESS(INTEGRATOR_EBI_BASE),
	91	.pfn = __phys_to_pfn(INTEGRATOR_EBI_BASE),
	92	.length = SZ_4K,
	93	.type = MT_DEVICE
	94	}, {
	95	.virtual = IO_ADDRESS(INTEGRATOR_CT_BASE),
	96	.pfn = __phys_to_pfn(INTEGRATOR_CT_BASE),
	97	.length = SZ_4K,
	98	.type = MT_DEVICE
	99	}, {
	100	.virtual = IO_ADDRESS(INTEGRATOR_IC_BASE),
	101	.pfn = __phys_to_pfn(INTEGRATOR_IC_BASE),
	102	.length = SZ_4K,
	103	.type = MT_DEVICE
	104	}, {
	105	.virtual = IO_ADDRESS(INTEGRATOR_UART0_BASE),
	106	.pfn = __phys_to_pfn(INTEGRATOR_UART0_BASE),
	107	.length = SZ_4K,
	108	.type = MT_DEVICE
	109	}, {
	110	.virtual = IO_ADDRESS(INTEGRATOR_UART1_BASE),
	111	.pfn = __phys_to_pfn(INTEGRATOR_UART1_BASE),
	112	.length = SZ_4K,
	113	.type = MT_DEVICE
	114	}, {
	115	.virtual = IO_ADDRESS(INTEGRATOR_DBG_BASE),
	116	.pfn = __phys_to_pfn(INTEGRATOR_DBG_BASE),
	117	.length = SZ_4K,
	118	.type = MT_DEVICE
	119	}, {
	120	.virtual = IO_ADDRESS(INTEGRATOR_GPIO_BASE),
	121	.pfn = __phys_to_pfn(INTEGRATOR_GPIO_BASE),
	122	.length = SZ_4K,
	123	.type = MT_DEVICE
	124	}, {
365f7a43	125	.virtual = IO_ADDRESS(0xca000000),
c8d27298 DS	126	.pfn = __phys_to_pfn(0xca000000),
	127	.length = SZ_4K,
	128	.type = MT_DEVICE
	129	}, {
365f7a43	130	.virtual = IO_ADDRESS(0xcb000000),
c8d27298 DS	131	.pfn = __phys_to_pfn(0xcb000000),
	132	.length = SZ_4K,
	133	.type = MT_DEVICE
	134	}
1da177e4 LT	135	};
	136
	137	static void __init intcp_map_io(void)
	138	{
	139	iotable_init(intcp_io_desc, ARRAY_SIZE(intcp_io_desc));
	140	}
	141
	142	#define cic_writel __raw_writel
	143	#define cic_readl __raw_readl
	144	#define pic_writel __raw_writel
	145	#define pic_readl __raw_readl
	146	#define sic_writel __raw_writel
	147	#define sic_readl __raw_readl
	148
	149	static void cic_mask_irq(unsigned int irq)
	150	{
	151	irq -= IRQ_CIC_START;
	152	cic_writel(1 << irq, INTCP_VA_CIC_BASE + IRQ_ENABLE_CLEAR);
	153	}
	154
	155	static void cic_unmask_irq(unsigned int irq)
	156	{
	157	irq -= IRQ_CIC_START;
	158	cic_writel(1 << irq, INTCP_VA_CIC_BASE + IRQ_ENABLE_SET);
	159	}
	160
38c677cb DB	161	static struct irq_chip cic_chip = {
38c677cb DB	162	.name = "CIC",
1da177e4 LT	163	.ack = cic_mask_irq,
	164	.mask = cic_mask_irq,
	165	.unmask = cic_unmask_irq,
	166	};
	167
	168	static void pic_mask_irq(unsigned int irq)
	169	{
	170	irq -= IRQ_PIC_START;
	171	pic_writel(1 << irq, INTCP_VA_PIC_BASE + IRQ_ENABLE_CLEAR);
	172	}
	173
	174	static void pic_unmask_irq(unsigned int irq)
	175	{
	176	irq -= IRQ_PIC_START;
	177	pic_writel(1 << irq, INTCP_VA_PIC_BASE + IRQ_ENABLE_SET);
	178	}
	179
38c677cb DB	180	static struct irq_chip pic_chip = {
38c677cb DB	181	.name = "PIC",
1da177e4 LT	182	.ack = pic_mask_irq,
	183	.mask = pic_mask_irq,
	184	.unmask = pic_unmask_irq,
	185	};
	186
	187	static void sic_mask_irq(unsigned int irq)
	188	{
	189	irq -= IRQ_SIC_START;
	190	sic_writel(1 << irq, INTCP_VA_SIC_BASE + IRQ_ENABLE_CLEAR);
	191	}
	192
	193	static void sic_unmask_irq(unsigned int irq)
	194	{
	195	irq -= IRQ_SIC_START;
	196	sic_writel(1 << irq, INTCP_VA_SIC_BASE + IRQ_ENABLE_SET);
	197	}
	198
38c677cb DB	199	static struct irq_chip sic_chip = {
38c677cb DB	200	.name = "SIC",
1da177e4 LT	201	.ack = sic_mask_irq,
	202	.mask = sic_mask_irq,
	203	.unmask = sic_unmask_irq,
	204	};
	205
	206	static void
10dd5ce2	207	sic_handle_irq(unsigned int irq, struct irq_desc *desc)
1da177e4 LT	208	{
	209	unsigned long status = sic_readl(INTCP_VA_SIC_BASE + IRQ_STATUS);
	210
	211	if (status == 0) {
0cd61b68	212	do_bad_IRQ(irq, desc);
1da177e4 LT	213	return;
	214	}
	215
	216	do {
	217	irq = ffs(status) - 1;
	218	status &= ~(1 << irq);
	219
	220	irq += IRQ_SIC_START;
	221
d8aa0251	222	generic_handle_irq(irq);
1da177e4 LT	223	} while (status);
	224	}
	225
	226	static void __init intcp_init_irq(void)
	227	{
	228	unsigned int i;
	229
	230	/*
	231	* Disable all interrupt sources
	232	*/
	233	pic_writel(0xffffffff, INTCP_VA_PIC_BASE + IRQ_ENABLE_CLEAR);
	234	pic_writel(0xffffffff, INTCP_VA_PIC_BASE + FIQ_ENABLE_CLEAR);
	235
	236	for (i = IRQ_PIC_START; i <= IRQ_PIC_END; i++) {
	237	if (i == 11)
	238	i = 22;
1da177e4 LT	239	if (i == 29)
	240	break;
	241	set_irq_chip(i, &pic_chip);
10dd5ce2	242	set_irq_handler(i, handle_level_irq);
1da177e4 LT	243	set_irq_flags(i, IRQF_VALID \| IRQF_PROBE);
	244	}
	245
	246	cic_writel(0xffffffff, INTCP_VA_CIC_BASE + IRQ_ENABLE_CLEAR);
	247	cic_writel(0xffffffff, INTCP_VA_CIC_BASE + FIQ_ENABLE_CLEAR);
	248
	249	for (i = IRQ_CIC_START; i <= IRQ_CIC_END; i++) {
	250	set_irq_chip(i, &cic_chip);
10dd5ce2	251	set_irq_handler(i, handle_level_irq);
1da177e4 LT	252	set_irq_flags(i, IRQF_VALID);
	253	}
	254
	255	sic_writel(0x00000fff, INTCP_VA_SIC_BASE + IRQ_ENABLE_CLEAR);
	256	sic_writel(0x00000fff, INTCP_VA_SIC_BASE + FIQ_ENABLE_CLEAR);
	257
	258	for (i = IRQ_SIC_START; i <= IRQ_SIC_END; i++) {
	259	set_irq_chip(i, &sic_chip);
10dd5ce2	260	set_irq_handler(i, handle_level_irq);
1da177e4 LT	261	set_irq_flags(i, IRQF_VALID \| IRQF_PROBE);
	262	}
	263
56f1319e	264	set_irq_chained_handler(IRQ_CP_CPPLDINT, sic_handle_irq);
1da177e4 LT	265	}
	266
	267	/*
	268	* Clock handling
	269	*/
	270	#define CM_LOCK (IO_ADDRESS(INTEGRATOR_HDR_BASE)+INTEGRATOR_HDR_LOCK_OFFSET)
	271	#define CM_AUXOSC (IO_ADDRESS(INTEGRATOR_HDR_BASE)+0x1c)
	272
	273	static const struct icst525_params cp_auxvco_params = {
	274	.ref = 24000,
	275	.vco_max = 320000,
	276	.vd_min = 8,
	277	.vd_max = 263,
	278	.rd_min = 3,
	279	.rd_max = 65,
	280	};
	281
	282	static void cp_auxvco_set(struct clk *clk, struct icst525_vco vco)
	283	{
	284	u32 val;
	285
	286	val = readl(CM_AUXOSC) & ~0x7ffff;
	287	val \|= vco.v \| (vco.r << 9) \| (vco.s << 16);
	288
	289	writel(0xa05f, CM_LOCK);
	290	writel(val, CM_AUXOSC);
	291	writel(0, CM_LOCK);
	292	}
	293
d72fbdf0	294	static struct clk cp_auxclk = {
1da177e4 LT	295	.params = &cp_auxvco_params,
	296	.setvco = cp_auxvco_set,
	297	};
	298
d72fbdf0 RK	299	static struct clk_lookup cp_lookups[] = {
	300	{ /* CLCD */
	301	.dev_id = "mb:c0",
	302	.clk = &cp_auxclk,
	303	},
1da177e4 LT	304	};
	305
	306	/*
	307	* Flash handling.
	308	*/
	309	static int intcp_flash_init(void)
	310	{
	311	u32 val;
	312
	313	val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
	314	val \|= CINTEGRATOR_FLASHPROG_FLWREN;
	315	writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
	316
	317	return 0;
	318	}
	319
	320	static void intcp_flash_exit(void)
	321	{
	322	u32 val;
	323
	324	val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
	325	val &= ~(CINTEGRATOR_FLASHPROG_FLVPPEN\|CINTEGRATOR_FLASHPROG_FLWREN);
	326	writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
	327	}
	328
	329	static void intcp_flash_set_vpp(int on)
	330	{
	331	u32 val;
	332
	333	val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
	334	if (on)
	335	val \|= CINTEGRATOR_FLASHPROG_FLVPPEN;
	336	else
	337	val &= ~CINTEGRATOR_FLASHPROG_FLVPPEN;
	338	writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
	339	}
	340
	341	static struct flash_platform_data intcp_flash_data = {
	342	.map_name = "cfi_probe",
	343	.width = 4,
	344	.init = intcp_flash_init,
	345	.exit = intcp_flash_exit,
	346	.set_vpp = intcp_flash_set_vpp,
	347	};
	348
	349	static struct resource intcp_flash_resource = {
	350	.start = INTCP_PA_FLASH_BASE,
	351	.end = INTCP_PA_FLASH_BASE + INTCP_FLASH_SIZE - 1,
	352	.flags = IORESOURCE_MEM,
	353	};
	354
	355	static struct platform_device intcp_flash_device = {
	356	.name = "armflash",
	357	.id = 0,
	358	.dev = {
	359	.platform_data = &intcp_flash_data,
	360	},
	361	.num_resources = 1,
	362	.resource = &intcp_flash_resource,
	363	};
	364
	365	static struct resource smc91x_resources[] = {
	366	[0] = {
	367	.start = INTCP_PA_ETH_BASE,
368	.end = INTCP_PA_ETH_BASE + INTCP_ETH_SIZE - 1,
369	.flags = IORESOURCE_MEM,
370	},
371	[1] = {
372	.start = IRQ_CP_ETHINT,
373	.end = IRQ_CP_ETHINT,
374	.flags = IORESOURCE_IRQ,
375	},
376	};
377
378	static struct platform_device smc91x_device = {
379	.name = "smc91x",
380	.id = 0,
381	.num_resources = ARRAY_SIZE(smc91x_resources),
382	.resource = smc91x_resources,
383	};
384
385	static struct platform_device *intcp_devs[] __initdata = {
386	&intcp_flash_device,
387	&smc91x_device,
388	};
389
390	/*
391	* It seems that the card insertion interrupt remains active after
392	* we've acknowledged it. We therefore ignore the interrupt, and
393	* rely on reading it from the SIC. This also means that we must
394	* clear the latched interrupt.
395	*/
396	static unsigned int mmc_status(struct device *dev)
397	{
365f7a43 CM	398	unsigned int status = readl(IO_ADDRESS(0xca000000) + 4);
365f7a43 CM	399	writel(8, IO_ADDRESS(0xcb000000) + 8);
1da177e4 LT	400
	401	return status & 8;
	402	}
	403
6ef297f8	404	static struct mmci_platform_data mmc_data = {
1da177e4 LT	405	.ocr_mask = MMC_VDD_32_33\|MMC_VDD_33_34,
1da177e4 LT	406	.status = mmc_status,
7fb2bbf4 RK	407	.gpio_wp = -1,
7fb2bbf4 RK	408	.gpio_cd = -1,
1da177e4 LT	409	};
	410
	411	static struct amba_device mmc_device = {
	412	.dev = {
1d559e29	413	.init_name = "mb:1c",
1da177e4 LT	414	.platform_data = &mmc_data,
	415	},
	416	.res = {
	417	.start = INTCP_PA_MMC_BASE,
	418	.end = INTCP_PA_MMC_BASE + SZ_4K - 1,
	419	.flags = IORESOURCE_MEM,
	420	},
	421	.irq = { IRQ_CP_MMCIINT0, IRQ_CP_MMCIINT1 },
	422	.periphid = 0,
	423	};
	424
	425	static struct amba_device aaci_device = {
	426	.dev = {
1d559e29	427	.init_name = "mb:1d",
1da177e4 LT	428	},
	429	.res = {
	430	.start = INTCP_PA_AACI_BASE,
	431	.end = INTCP_PA_AACI_BASE + SZ_4K - 1,
	432	.flags = IORESOURCE_MEM,
	433	},
	434	.irq = { IRQ_CP_AACIINT, NO_IRQ },
	435	.periphid = 0,
	436	};
	437
	438
	439	/*
	440	* CLCD support
	441	*/
	442	static struct clcd_panel vga = {
	443	.mode = {
	444	.name = "VGA",
	445	.refresh = 60,
	446	.xres = 640,
	447	.yres = 480,
	448	.pixclock = 39721,
	449	.left_margin = 40,
	450	.right_margin = 24,
	451	.upper_margin = 32,
	452	.lower_margin = 11,
	453	.hsync_len = 96,
	454	.vsync_len = 2,
	455	.sync = 0,
	456	.vmode = FB_VMODE_NONINTERLACED,
	457	},
	458	.width = -1,
	459	.height = -1,
	460	.tim2 = TIM2_BCD \| TIM2_IPC,
	461	.cntl = CNTL_LCDTFT \| CNTL_LCDVCOMP(1),
	462	.bpp = 16,
	463	.grayscale = 0,
	464	};
	465
	466	/*
	467	* Ensure VGA is selected.
	468	*/
	469	static void cp_clcd_enable(struct clcd_fb *fb)
	470	{
4774e226 RK	471	u32 val;
	472
	473	if (fb->fb.var.bits_per_pixel <= 8)
	474	val = CM_CTRL_LCDMUXSEL_VGA_8421BPP;
	475	else if (fb->fb.var.bits_per_pixel <= 16)
14e54cc3 CM	476	val = CM_CTRL_LCDMUXSEL_VGA_16BPP
	477	\| CM_CTRL_LCDEN0 \| CM_CTRL_LCDEN1
	478	\| CM_CTRL_STATIC1 \| CM_CTRL_STATIC2;
4774e226 RK	479	else
	480	val = 0; /* no idea for this, don't trust the docs */
	481
	482	cm_control(CM_CTRL_LCDMUXSEL_MASK\|
	483	CM_CTRL_LCDEN0\|
	484	CM_CTRL_LCDEN1\|
	485	CM_CTRL_STATIC1\|
	486	CM_CTRL_STATIC2\|
	487	CM_CTRL_STATIC\|
	488	CM_CTRL_n24BITEN, val);
1da177e4 LT	489	}
	490
	491	static unsigned long framesize = SZ_1M;
	492
	493	static int cp_clcd_setup(struct clcd_fb *fb)
	494	{
	495	dma_addr_t dma;
	496
	497	fb->panel = &vga;
	498
	499	fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize,
	500	&dma, GFP_KERNEL);
	501	if (!fb->fb.screen_base) {
	502	printk(KERN_ERR "CLCD: unable to map framebuffer\n");
	503	return -ENOMEM;
	504	}
	505
	506	fb->fb.fix.smem_start = dma;
	507	fb->fb.fix.smem_len = framesize;
	508
	509	return 0;
	510	}
	511
	512	static int cp_clcd_mmap(struct clcd_fb fb, struct vm_area_struct vma)
	513	{
	514	return dma_mmap_writecombine(&fb->dev->dev, vma,
	515	fb->fb.screen_base,
	516	fb->fb.fix.smem_start,
	517	fb->fb.fix.smem_len);
	518	}
	519
	520	static void cp_clcd_remove(struct clcd_fb *fb)
	521	{
	522	dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
	523	fb->fb.screen_base, fb->fb.fix.smem_start);
	524	}
	525
	526	static struct clcd_board clcd_data = {
	527	.name = "Integrator/CP",
	528	.check = clcdfb_check,
	529	.decode = clcdfb_decode,
	530	.enable = cp_clcd_enable,
	531	.setup = cp_clcd_setup,
	532	.mmap = cp_clcd_mmap,
	533	.remove = cp_clcd_remove,
	534	};
	535
	536	static struct amba_device clcd_device = {
	537	.dev = {
1d559e29	538	.init_name = "mb:c0",
1da177e4 LT	539	.coherent_dma_mask = ~0,
	540	.platform_data = &clcd_data,
	541	},
	542	.res = {
	543	.start = INTCP_PA_CLCD_BASE,
	544	.end = INTCP_PA_CLCD_BASE + SZ_4K - 1,
	545	.flags = IORESOURCE_MEM,
	546	},
	547	.dma_mask = ~0,
	548	.irq = { IRQ_CP_CLCDCINT, NO_IRQ },
	549	.periphid = 0,
	550	};
	551
	552	static struct amba_device *amba_devs[] __initdata = {
	553	&mmc_device,
	554	&aaci_device,
	555	&clcd_device,
	556	};
	557
	558	static void __init intcp_init(void)
	559	{
	560	int i;
	561
0a0300dc	562	clkdev_add_table(cp_lookups, ARRAY_SIZE(cp_lookups));
1da177e4 LT	563	platform_add_devices(intcp_devs, ARRAY_SIZE(intcp_devs));
	564
	565	for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
	566	struct amba_device *d = amba_devs[i];
	567	amba_device_register(d, &iomem_resource);
	568	}
	569	}
	570
	571	#define TIMER_CTRL_IE (1 << 5) /* Interrupt Enable */
	572
	573	static void __init intcp_timer_init(void)
	574	{
	575	integrator_time_init(1000000 / HZ, TIMER_CTRL_IE);
	576	}
	577
	578	static struct sys_timer cp_timer = {
	579	.init = intcp_timer_init,
1da177e4 LT	580	};
	581
	582	MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP")
e9dea0c6	583	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
e9dea0c6 RK	584	.phys_io = 0x16000000,
	585	.io_pg_offst = ((0xf1600000) >> 18) & 0xfffc,
	586	.boot_params = 0x00000100,
	587	.map_io = intcp_map_io,
	588	.init_irq = intcp_init_irq,
1da177e4	589	.timer = &cp_timer,
e9dea0c6	590	.init_machine = intcp_init,
1da177e4	591	MACHINE_END