[linux-2.6-block.git] / arch / m68knommu / platform / 520x / config.c

/***************************************************************************/

/*
 *  linux/arch/m68knommu/platform/520x/config.c
 *
 *  Copyright (C) 2005,      Freescale (www.freescale.com)
 *  Copyright (C) 2005,      Intec Automation (mike@steroidmicros.com)
 *  Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com)
 *  Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
 */

/***************************************************************************/

#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>

/***************************************************************************/

static struct mcf_platform_uart m520x_uart_platform[] = {
	{
		.mapbase	= MCF_MBAR + MCFUART_BASE1,
		.irq		= MCFINT_VECBASE + MCFINT_UART0,
	},
	{
		.mapbase 	= MCF_MBAR + MCFUART_BASE2,
		.irq		= MCFINT_VECBASE + MCFINT_UART1,
	},
	{
		.mapbase 	= MCF_MBAR + MCFUART_BASE3,
		.irq		= MCFINT_VECBASE + MCFINT_UART2,
	},
	{ },
};

static struct platform_device m520x_uart = {
	.name			= "mcfuart",
	.id			= 0,
	.dev.platform_data	= m520x_uart_platform,
};

static struct resource m520x_fec_resources[] = {
	{
		.start		= MCF_MBAR + 0x30000,
		.end		= MCF_MBAR + 0x30000 + 0x7ff,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= 64 + 36,
		.end		= 64 + 36,
		.flags		= IORESOURCE_IRQ,
	},
	{
		.start		= 64 + 40,
		.end		= 64 + 40,
		.flags		= IORESOURCE_IRQ,
	},
	{
		.start		= 64 + 42,
		.end		= 64 + 42,
		.flags		= IORESOURCE_IRQ,
	},
};

static struct platform_device m520x_fec = {
	.name			= "fec",
	.id			= 0,
	.num_resources		= ARRAY_SIZE(m520x_fec_resources),
	.resource		= m520x_fec_resources,
};

static struct platform_device *m520x_devices[] __initdata = {
	&m520x_uart,
	&m520x_fec,
};

/***************************************************************************/

#define	INTC0	(MCF_MBAR + MCFICM_INTC0)

static void __init m520x_uart_init_line(int line, int irq)
{
	u32 imr;
	u16 par;
	u8 par2;

	writeb(0x03, INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line);

	imr = readl(INTC0 + MCFINTC_IMRL);
	imr &= ~((1 << (irq - MCFINT_VECBASE)) | 1);
	writel(imr, INTC0 + MCFINTC_IMRL);

	switch (line) {
	case 0:
		par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
		par |= MCF_GPIO_PAR_UART_PAR_UTXD0 |
		       MCF_GPIO_PAR_UART_PAR_URXD0;
		writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
		break;
	case 1:
		par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
		par |= MCF_GPIO_PAR_UART_PAR_UTXD1 |
		       MCF_GPIO_PAR_UART_PAR_URXD1;
		writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
		break;
	case 2:
		par2 = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
		par2 &= ~0x0F;
		par2 |= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 |
			MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2;
		writeb(par2, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
		break;
	}
}

static void __init m520x_uarts_init(void)
{
	const int nrlines = ARRAY_SIZE(m520x_uart_platform);
	int line;

	for (line = 0; (line < nrlines); line++)
		m520x_uart_init_line(line, m520x_uart_platform[line].irq);
}

/***************************************************************************/

static void __init m520x_fec_init(void)
{
	u32 imr;
	u8 v;

	/* Unmask FEC interrupts at ColdFire interrupt controller */
	writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 36);
	writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 40);
	writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 42);

	imr = readl(MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH);
	imr &= ~0x0001FFF0;
	writel(imr, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH);

	/* Set multi-function pins to ethernet mode */
	v = readb(MCF_IPSBAR + MCF_GPIO_PAR_FEC);
	writeb(v | 0xf0, MCF_IPSBAR + MCF_GPIO_PAR_FEC);

	v = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
	writeb(v | 0x0f, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
}

/***************************************************************************/

/*
 *  Program the vector to be an auto-vectored.
 */

void mcf_autovector(unsigned int vec)
{
    /* Everything is auto-vectored on the 520x devices */
}

/***************************************************************************/

static void m520x_cpu_reset(void)
{
	local_irq_disable();
	__raw_writeb(MCF_RCR_SWRESET, MCF_RCR);
}

/***************************************************************************/

void __init config_BSP(char *commandp, int size)
{
	mach_reset = m520x_cpu_reset;
	m520x_uarts_init();
	m520x_fec_init();
}

/***************************************************************************/

static int __init init_BSP(void)
{
	platform_add_devices(m520x_devices, ARRAY_SIZE(m520x_devices));
	return 0;
}

arch_initcall(init_BSP);

/***************************************************************************/
Commit	Line	Data
88a605b0 GU	1	/***************************************************************************/
	2
	3	/*
	4	* linux/arch/m68knommu/platform/520x/config.c
	5	*
	6	* Copyright (C) 2005, Freescale (www.freescale.com)
	7	* Copyright (C) 2005, Intec Automation (mike@steroidmicros.com)
7dabb9ad	8	* Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com)
88a605b0 GU	9	* Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
	10	*/
	11
	12	/***************************************************************************/
	13
88a605b0 GU	14	#include <linux/kernel.h>
88a605b0 GU	15	#include <linux/param.h>
7dabb9ad	16	#include <linux/init.h>
7dabb9ad	17	#include <linux/io.h>
88a605b0	18	#include <asm/machdep.h>
7dabb9ad GU	19	#include <asm/coldfire.h>
	20	#include <asm/mcfsim.h>
	21	#include <asm/mcfuart.h>
88a605b0 GU	22
	23	/***************************************************************************/
	24
7dabb9ad GU	25	static struct mcf_platform_uart m520x_uart_platform[] = {
	26	{
	27	.mapbase = MCF_MBAR + MCFUART_BASE1,
	28	.irq = MCFINT_VECBASE + MCFINT_UART0,
	29	},
	30	{
	31	.mapbase = MCF_MBAR + MCFUART_BASE2,
	32	.irq = MCFINT_VECBASE + MCFINT_UART1,
	33	},
	34	{
	35	.mapbase = MCF_MBAR + MCFUART_BASE3,
	36	.irq = MCFINT_VECBASE + MCFINT_UART2,
	37	},
	38	{ },
	39	};
	40
	41	static struct platform_device m520x_uart = {
	42	.name = "mcfuart",
	43	.id = 0,
	44	.dev.platform_data = m520x_uart_platform,
	45	};
	46
ffba3f48 GU	47	static struct resource m520x_fec_resources[] = {
	48	{
	49	.start = MCF_MBAR + 0x30000,
	50	.end = MCF_MBAR + 0x30000 + 0x7ff,
	51	.flags = IORESOURCE_MEM,
	52	},
	53	{
	54	.start = 64 + 36,
	55	.end = 64 + 36,
	56	.flags = IORESOURCE_IRQ,
	57	},
	58	{
	59	.start = 64 + 40,
	60	.end = 64 + 40,
	61	.flags = IORESOURCE_IRQ,
	62	},
	63	{
	64	.start = 64 + 42,
	65	.end = 64 + 42,
	66	.flags = IORESOURCE_IRQ,
	67	},
	68	};
	69
	70	static struct platform_device m520x_fec = {
	71	.name = "fec",
	72	.id = 0,
	73	.num_resources = ARRAY_SIZE(m520x_fec_resources),
	74	.resource = m520x_fec_resources,
	75	};
	76
7dabb9ad GU	77	static struct platform_device *m520x_devices[] __initdata = {
7dabb9ad GU	78	&m520x_uart,
ffba3f48	79	&m520x_fec,
7dabb9ad GU	80	};
	81
	82	/***************************************************************************/
	83
	84	#define INTC0 (MCF_MBAR + MCFICM_INTC0)
	85
	86	static void __init m520x_uart_init_line(int line, int irq)
	87	{
	88	u32 imr;
	89	u16 par;
	90	u8 par2;
	91
	92	writeb(0x03, INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line);
	93
	94	imr = readl(INTC0 + MCFINTC_IMRL);
	95	imr &= ~((1 << (irq - MCFINT_VECBASE)) \| 1);
	96	writel(imr, INTC0 + MCFINTC_IMRL);
	97
	98	switch (line) {
	99	case 0:
	100	par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
	101	par \|= MCF_GPIO_PAR_UART_PAR_UTXD0 \|
	102	MCF_GPIO_PAR_UART_PAR_URXD0;
	103	writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
	104	break;
	105	case 1:
	106	par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
	107	par \|= MCF_GPIO_PAR_UART_PAR_UTXD1 \|
	108	MCF_GPIO_PAR_UART_PAR_URXD1;
	109	writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
	110	break;
	111	case 2:
	112	par2 = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
	113	par2 &= ~0x0F;
	114	par2 \|= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 \|
	115	MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2;
	116	writeb(par2, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
	117	break;
	118	}
	119	}
	120
	121	static void __init m520x_uarts_init(void)
	122	{
	123	const int nrlines = ARRAY_SIZE(m520x_uart_platform);
	124	int line;
	125
	126	for (line = 0; (line < nrlines); line++)
	127	m520x_uart_init_line(line, m520x_uart_platform[line].irq);
	128	}
88a605b0 GU	129
	130	/***************************************************************************/
	131
ffba3f48 GU	132	static void __init m520x_fec_init(void)
	133	{
	134	u32 imr;
	135	u8 v;
	136
	137	/* Unmask FEC interrupts at ColdFire interrupt controller */
	138	writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 36);
	139	writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 40);
	140	writeb(0x4, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_ICR0 + 42);
	141
	142	imr = readl(MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH);
	143	imr &= ~0x0001FFF0;
	144	writel(imr, MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH);
	145
	146	/* Set multi-function pins to ethernet mode */
	147	v = readb(MCF_IPSBAR + MCF_GPIO_PAR_FEC);
	148	writeb(v \| 0xf0, MCF_IPSBAR + MCF_GPIO_PAR_FEC);
	149
	150	v = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
	151	writeb(v \| 0x0f, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C);
	152	}
	153
	154	/***************************************************************************/
	155
88a605b0 GU	156	/*
	157	* Program the vector to be an auto-vectored.
	158	*/
	159
	160	void mcf_autovector(unsigned int vec)
	161	{
	162	/* Everything is auto-vectored on the 520x devices */
	163	}
	164
	165	/***************************************************************************/
	166
25ce4a90 GU	167	static void m520x_cpu_reset(void)
	168	{
	169	local_irq_disable();
	170	__raw_writeb(MCF_RCR_SWRESET, MCF_RCR);
	171	}
	172
	173	/***************************************************************************/
	174
7dabb9ad	175	void __init config_BSP(char *commandp, int size)
88a605b0	176	{
25ce4a90	177	mach_reset = m520x_cpu_reset;
7dabb9ad	178	m520x_uarts_init();
ffba3f48	179	m520x_fec_init();
88a605b0 GU	180	}
	181
	182	/***************************************************************************/
7dabb9ad GU	183
	184	static int __init init_BSP(void)
	185	{
	186	platform_add_devices(m520x_devices, ARRAY_SIZE(m520x_devices));
	187	return 0;
	188	}
	189
	190	arch_initcall(init_BSP);
	191
	192	/***************************************************************************/