[linux-block.git] / arch / powerpc / sysdev / cpm2.c

/*
 * General Purpose functions for the global management of the
 * 8260 Communication Processor Module.
 * Copyright (c) 1999-2001 Dan Malek <dan@embeddedalley.com>
 * Copyright (c) 2000 MontaVista Software, Inc (source@mvista.com)
 *	2.3.99 Updates
 *
 * 2006 (c) MontaVista Software, Inc.
 * Vitaly Bordug <vbordug@ru.mvista.com>
 * 	Merged to arch/powerpc from arch/ppc/syslib/cpm2_common.c
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2. This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */

/*
 *
 * In addition to the individual control of the communication
 * channels, there are a few functions that globally affect the
 * communication processor.
 *
 * Buffer descriptors must be allocated from the dual ported memory
 * space.  The allocator for that is here.  When the communication
 * process is reset, we reclaim the memory available.  There is
 * currently no deallocator for this memory.
 */
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/of.h>

#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mpc8260.h>
#include <asm/page.h>
#include <asm/cpm2.h>
#include <asm/rheap.h>
#include <asm/fs_pd.h>

#include <sysdev/fsl_soc.h>

cpm_cpm2_t __iomem *cpmp; /* Pointer to comm processor space */

/* We allocate this here because it is used almost exclusively for
 * the communication processor devices.
 */
cpm2_map_t __iomem *cpm2_immr;
EXPORT_SYMBOL(cpm2_immr);

#define CPM_MAP_SIZE	(0x40000)	/* 256k - the PQ3 reserve this amount
					   of space for CPM as it is larger
					   than on PQ2 */

void __init cpm2_reset(void)
{
#ifdef CONFIG_PPC_85xx
	cpm2_immr = ioremap(get_immrbase() + 0x80000, CPM_MAP_SIZE);
#else
	cpm2_immr = ioremap(get_immrbase(), CPM_MAP_SIZE);
#endif

	/* Tell everyone where the comm processor resides.
	 */
	cpmp = &cpm2_immr->im_cpm;

#ifndef CONFIG_PPC_EARLY_DEBUG_CPM
	/* Reset the CPM.
	 */
	cpm_command(CPM_CR_RST, 0);
#endif
}

static DEFINE_SPINLOCK(cmd_lock);

#define MAX_CR_CMD_LOOPS        10000

int cpm_command(u32 command, u8 opcode)
{
	int i, ret;
	unsigned long flags;

	spin_lock_irqsave(&cmd_lock, flags);

	ret = 0;
	out_be32(&cpmp->cp_cpcr, command | opcode | CPM_CR_FLG);
	for (i = 0; i < MAX_CR_CMD_LOOPS; i++)
		if ((in_be32(&cpmp->cp_cpcr) & CPM_CR_FLG) == 0)
			goto out;

	printk(KERN_ERR "%s(): Not able to issue CPM command\n", __func__);
	ret = -EIO;
out:
	spin_unlock_irqrestore(&cmd_lock, flags);
	return ret;
}
EXPORT_SYMBOL(cpm_command);

/* Set a baud rate generator.  This needs lots of work.  There are
 * eight BRGs, which can be connected to the CPM channels or output
 * as clocks.  The BRGs are in two different block of internal
 * memory mapped space.
 * The baud rate clock is the system clock divided by something.
 * It was set up long ago during the initial boot phase and is
 * given to us.
 * Baud rate clocks are zero-based in the driver code (as that maps
 * to port numbers).  Documentation uses 1-based numbering.
 */
void __cpm2_setbrg(uint brg, uint rate, uint clk, int div16, int src)
{
	u32 __iomem *bp;
	u32 val;

	/* This is good enough to get SMCs running.....
	*/
	if (brg < 4) {
		bp = cpm2_map_size(im_brgc1, 16);
	} else {
		bp = cpm2_map_size(im_brgc5, 16);
		brg -= 4;
	}
	bp += brg;
	/* Round the clock divider to the nearest integer. */
	val = (((clk * 2 / rate) - 1) & ~1) | CPM_BRG_EN | src;
	if (div16)
		val |= CPM_BRG_DIV16;

	out_be32(bp, val);
	cpm2_unmap(bp);
}
EXPORT_SYMBOL(__cpm2_setbrg);

int __init cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
{
	int ret = 0;
	int shift;
	int i, bits = 0;
	cpmux_t __iomem *im_cpmux;
	u32 __iomem *reg;
	u32 mask = 7;

	u8 clk_map[][3] = {
		{CPM_CLK_FCC1, CPM_BRG5, 0},
		{CPM_CLK_FCC1, CPM_BRG6, 1},
		{CPM_CLK_FCC1, CPM_BRG7, 2},
		{CPM_CLK_FCC1, CPM_BRG8, 3},
		{CPM_CLK_FCC1, CPM_CLK9, 4},
		{CPM_CLK_FCC1, CPM_CLK10, 5},
		{CPM_CLK_FCC1, CPM_CLK11, 6},
		{CPM_CLK_FCC1, CPM_CLK12, 7},
		{CPM_CLK_FCC2, CPM_BRG5, 0},
		{CPM_CLK_FCC2, CPM_BRG6, 1},
		{CPM_CLK_FCC2, CPM_BRG7, 2},
		{CPM_CLK_FCC2, CPM_BRG8, 3},
		{CPM_CLK_FCC2, CPM_CLK13, 4},
		{CPM_CLK_FCC2, CPM_CLK14, 5},
		{CPM_CLK_FCC2, CPM_CLK15, 6},
		{CPM_CLK_FCC2, CPM_CLK16, 7},
		{CPM_CLK_FCC3, CPM_BRG5, 0},
		{CPM_CLK_FCC3, CPM_BRG6, 1},
		{CPM_CLK_FCC3, CPM_BRG7, 2},
		{CPM_CLK_FCC3, CPM_BRG8, 3},
		{CPM_CLK_FCC3, CPM_CLK13, 4},
		{CPM_CLK_FCC3, CPM_CLK14, 5},
		{CPM_CLK_FCC3, CPM_CLK15, 6},
		{CPM_CLK_FCC3, CPM_CLK16, 7},
		{CPM_CLK_SCC1, CPM_BRG1, 0},
		{CPM_CLK_SCC1, CPM_BRG2, 1},
		{CPM_CLK_SCC1, CPM_BRG3, 2},
		{CPM_CLK_SCC1, CPM_BRG4, 3},
		{CPM_CLK_SCC1, CPM_CLK11, 4},
		{CPM_CLK_SCC1, CPM_CLK12, 5},
		{CPM_CLK_SCC1, CPM_CLK3, 6},
		{CPM_CLK_SCC1, CPM_CLK4, 7},
		{CPM_CLK_SCC2, CPM_BRG1, 0},
		{CPM_CLK_SCC2, CPM_BRG2, 1},
		{CPM_CLK_SCC2, CPM_BRG3, 2},
		{CPM_CLK_SCC2, CPM_BRG4, 3},
		{CPM_CLK_SCC2, CPM_CLK11, 4},
		{CPM_CLK_SCC2, CPM_CLK12, 5},
		{CPM_CLK_SCC2, CPM_CLK3, 6},
		{CPM_CLK_SCC2, CPM_CLK4, 7},
		{CPM_CLK_SCC3, CPM_BRG1, 0},
		{CPM_CLK_SCC3, CPM_BRG2, 1},
		{CPM_CLK_SCC3, CPM_BRG3, 2},
		{CPM_CLK_SCC3, CPM_BRG4, 3},
		{CPM_CLK_SCC3, CPM_CLK5, 4},
		{CPM_CLK_SCC3, CPM_CLK6, 5},
		{CPM_CLK_SCC3, CPM_CLK7, 6},
		{CPM_CLK_SCC3, CPM_CLK8, 7},
		{CPM_CLK_SCC4, CPM_BRG1, 0},
		{CPM_CLK_SCC4, CPM_BRG2, 1},
		{CPM_CLK_SCC4, CPM_BRG3, 2},
		{CPM_CLK_SCC4, CPM_BRG4, 3},
		{CPM_CLK_SCC4, CPM_CLK5, 4},
		{CPM_CLK_SCC4, CPM_CLK6, 5},
		{CPM_CLK_SCC4, CPM_CLK7, 6},
		{CPM_CLK_SCC4, CPM_CLK8, 7},
	};

	im_cpmux = cpm2_map(im_cpmux);

	switch (target) {
	case CPM_CLK_SCC1:
		reg = &im_cpmux->cmx_scr;
		shift = 24;
		break;
	case CPM_CLK_SCC2:
		reg = &im_cpmux->cmx_scr;
		shift = 16;
		break;
	case CPM_CLK_SCC3:
		reg = &im_cpmux->cmx_scr;
		shift = 8;
		break;
	case CPM_CLK_SCC4:
		reg = &im_cpmux->cmx_scr;
		shift = 0;
		break;
	case CPM_CLK_FCC1:
		reg = &im_cpmux->cmx_fcr;
		shift = 24;
		break;
	case CPM_CLK_FCC2:
		reg = &im_cpmux->cmx_fcr;
		shift = 16;
		break;
	case CPM_CLK_FCC3:
		reg = &im_cpmux->cmx_fcr;
		shift = 8;
		break;
	default:
		printk(KERN_ERR "cpm2_clock_setup: invalid clock target\n");
		return -EINVAL;
	}

	for (i = 0; i < ARRAY_SIZE(clk_map); i++) {
		if (clk_map[i][0] == target && clk_map[i][1] == clock) {
			bits = clk_map[i][2];
			break;
		}
	}
	if (i == ARRAY_SIZE(clk_map))
	    ret = -EINVAL;

	bits <<= shift;
	mask <<= shift;

	if (mode == CPM_CLK_RTX) {
		bits |= bits << 3;
		mask |= mask << 3;
	} else if (mode == CPM_CLK_RX) {
		bits <<= 3;
		mask <<= 3;
	}

	out_be32(reg, (in_be32(reg) & ~mask) | bits);

	cpm2_unmap(im_cpmux);
	return ret;
}

int __init cpm2_smc_clk_setup(enum cpm_clk_target target, int clock)
{
	int ret = 0;
	int shift;
	int i, bits = 0;
	cpmux_t __iomem *im_cpmux;
	u8 __iomem *reg;
	u8 mask = 3;

	u8 clk_map[][3] = {
		{CPM_CLK_SMC1, CPM_BRG1, 0},
		{CPM_CLK_SMC1, CPM_BRG7, 1},
		{CPM_CLK_SMC1, CPM_CLK7, 2},
		{CPM_CLK_SMC1, CPM_CLK9, 3},
		{CPM_CLK_SMC2, CPM_BRG2, 0},
		{CPM_CLK_SMC2, CPM_BRG8, 1},
		{CPM_CLK_SMC2, CPM_CLK4, 2},
		{CPM_CLK_SMC2, CPM_CLK15, 3},
	};

	im_cpmux = cpm2_map(im_cpmux);

	switch (target) {
	case CPM_CLK_SMC1:
		reg = &im_cpmux->cmx_smr;
		mask = 3;
		shift = 4;
		break;
	case CPM_CLK_SMC2:
		reg = &im_cpmux->cmx_smr;
		mask = 3;
		shift = 0;
		break;
	default:
		printk(KERN_ERR "cpm2_smc_clock_setup: invalid clock target\n");
		return -EINVAL;
	}

	for (i = 0; i < ARRAY_SIZE(clk_map); i++) {
		if (clk_map[i][0] == target && clk_map[i][1] == clock) {
			bits = clk_map[i][2];
			break;
		}
	}
	if (i == ARRAY_SIZE(clk_map))
	    ret = -EINVAL;

	bits <<= shift;
	mask <<= shift;

	out_8(reg, (in_8(reg) & ~mask) | bits);

	cpm2_unmap(im_cpmux);
	return ret;
}

struct cpm2_ioports {
	u32 dir, par, sor, odr, dat;
	u32 res[3];
};

void __init cpm2_set_pin(int port, int pin, int flags)
{
	struct cpm2_ioports __iomem *iop =
		(struct cpm2_ioports __iomem *)&cpm2_immr->im_ioport;

	pin = 1 << (31 - pin);

	if (flags & CPM_PIN_OUTPUT)
		setbits32(&iop[port].dir, pin);
	else
		clrbits32(&iop[port].dir, pin);

	if (!(flags & CPM_PIN_GPIO))
		setbits32(&iop[port].par, pin);
	else
		clrbits32(&iop[port].par, pin);

	if (flags & CPM_PIN_SECONDARY)
		setbits32(&iop[port].sor, pin);
	else
		clrbits32(&iop[port].sor, pin);

	if (flags & CPM_PIN_OPENDRAIN)
		setbits32(&iop[port].odr, pin);
	else
		clrbits32(&iop[port].odr, pin);
}
Commit	Line	Data
b0c110b4 VB	1	/*
	2	* General Purpose functions for the global management of the
	3	* 8260 Communication Processor Module.
	4	* Copyright (c) 1999-2001 Dan Malek <dan@embeddedalley.com>
	5	* Copyright (c) 2000 MontaVista Software, Inc (source@mvista.com)
	6	* 2.3.99 Updates
	7	*
	8	* 2006 (c) MontaVista Software, Inc.
	9	* Vitaly Bordug <vbordug@ru.mvista.com>
	10	* Merged to arch/powerpc from arch/ppc/syslib/cpm2_common.c
	11	*
	12	* This file is licensed under the terms of the GNU General Public License
	13	* version 2. This program is licensed "as is" without any warranty of any
	14	* kind, whether express or implied.
	15	*/
	16
	17	/*
	18	*
	19	* In addition to the individual control of the communication
	20	* channels, there are a few functions that globally affect the
	21	* communication processor.
	22	*
	23	* Buffer descriptors must be allocated from the dual ported memory
	24	* space. The allocator for that is here. When the communication
	25	* process is reset, we reclaim the memory available. There is
	26	* currently no deallocator for this memory.
	27	*/
	28	#include <linux/errno.h>
	29	#include <linux/sched.h>
	30	#include <linux/kernel.h>
	31	#include <linux/param.h>
	32	#include <linux/string.h>
	33	#include <linux/mm.h>
	34	#include <linux/interrupt.h>
	35	#include <linux/module.h>
449012da SW	36	#include <linux/of.h>
449012da SW	37
b0c110b4 VB	38	#include <asm/io.h>
	39	#include <asm/irq.h>
	40	#include <asm/mpc8260.h>
	41	#include <asm/page.h>
b0c110b4 VB	42	#include <asm/cpm2.h>
	43	#include <asm/rheap.h>
	44	#include <asm/fs_pd.h>
	45
	46	#include <sysdev/fsl_soc.h>
	47
449012da	48	cpm_cpm2_t __iomem cpmp; / Pointer to comm processor space */
b0c110b4 VB	49
	50	/* We allocate this here because it is used almost exclusively for
	51	* the communication processor devices.
	52	*/
449012da	53	cpm2_map_t __iomem *cpm2_immr;
6e27cca9	54	EXPORT_SYMBOL(cpm2_immr);
b0c110b4 VB	55
	56	#define CPM_MAP_SIZE (0x40000) /* 256k - the PQ3 reserve this amount
	57	of space for CPM as it is larger
	58	than on PQ2 */
	59
cd2150bc	60	void __init cpm2_reset(void)
b0c110b4	61	{
449012da	62	#ifdef CONFIG_PPC_85xx
ca851c78	63	cpm2_immr = ioremap(get_immrbase() + 0x80000, CPM_MAP_SIZE);
449012da SW	64	#else
	65	cpm2_immr = ioremap(get_immrbase(), CPM_MAP_SIZE);
	66	#endif
b0c110b4	67
b0c110b4 VB	68	/* Tell everyone where the comm processor resides.
	69	*/
	70	cpmp = &cpm2_immr->im_cpm;
872a15de LP	71
	72	#ifndef CONFIG_PPC_EARLY_DEBUG_CPM
	73	/* Reset the CPM.
	74	*/
	75	cpm_command(CPM_CR_RST, 0);
	76	#endif
b0c110b4 VB	77	}
b0c110b4 VB	78
362f9b6f JF	79	static DEFINE_SPINLOCK(cmd_lock);
	80
	81	#define MAX_CR_CMD_LOOPS 10000
	82
	83	int cpm_command(u32 command, u8 opcode)
	84	{
	85	int i, ret;
	86	unsigned long flags;
	87
	88	spin_lock_irqsave(&cmd_lock, flags);
	89
	90	ret = 0;
	91	out_be32(&cpmp->cp_cpcr, command \| opcode \| CPM_CR_FLG);
	92	for (i = 0; i < MAX_CR_CMD_LOOPS; i++)
	93	if ((in_be32(&cpmp->cp_cpcr) & CPM_CR_FLG) == 0)
	94	goto out;
	95
e48b1b45	96	printk(KERN_ERR "%s(): Not able to issue CPM command\n", __func__);
362f9b6f JF	97	ret = -EIO;
	98	out:
	99	spin_unlock_irqrestore(&cmd_lock, flags);
	100	return ret;
	101	}
	102	EXPORT_SYMBOL(cpm_command);
	103
b0c110b4 VB	104	/* Set a baud rate generator. This needs lots of work. There are
	105	* eight BRGs, which can be connected to the CPM channels or output
	106	* as clocks. The BRGs are in two different block of internal
	107	* memory mapped space.
	108	* The baud rate clock is the system clock divided by something.
	109	* It was set up long ago during the initial boot phase and is
738f9dca	110	* given to us.
b0c110b4 VB	111	* Baud rate clocks are zero-based in the driver code (as that maps
	112	* to port numbers). Documentation uses 1-based numbering.
	113	*/
dddb8d31	114	void __cpm2_setbrg(uint brg, uint rate, uint clk, int div16, int src)
b0c110b4	115	{
449012da	116	u32 __iomem *bp;
dddb8d31	117	u32 val;
b0c110b4 VB	118
	119	/* This is good enough to get SMCs running.....
	120	*/
	121	if (brg < 4) {
fc8e50e3	122	bp = cpm2_map_size(im_brgc1, 16);
b0c110b4	123	} else {
fc8e50e3	124	bp = cpm2_map_size(im_brgc5, 16);
b0c110b4 VB	125	brg -= 4;
	126	}
	127	bp += brg;
7b890994 LP	128	/* Round the clock divider to the nearest integer. */
7b890994 LP	129	val = (((clk * 2 / rate) - 1) & ~1) \| CPM_BRG_EN \| src;
b0c110b4	130	if (div16)
449012da	131	val \|= CPM_BRG_DIV16;
fc8e50e3	132
449012da	133	out_be32(bp, val);
fc8e50e3	134	cpm2_unmap(bp);
b0c110b4	135	}
dddb8d31	136	EXPORT_SYMBOL(__cpm2_setbrg);
b0c110b4	137
6c552983	138	int __init cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode)
d3465c92 VB	139	{
	140	int ret = 0;
	141	int shift;
	142	int i, bits = 0;
449012da SW	143	cpmux_t __iomem *im_cpmux;
449012da SW	144	u32 __iomem *reg;
d3465c92	145	u32 mask = 7;
2652d4ec SW	146
2652d4ec SW	147	u8 clk_map[][3] = {
d3465c92 VB	148	{CPM_CLK_FCC1, CPM_BRG5, 0},
	149	{CPM_CLK_FCC1, CPM_BRG6, 1},
	150	{CPM_CLK_FCC1, CPM_BRG7, 2},
	151	{CPM_CLK_FCC1, CPM_BRG8, 3},
	152	{CPM_CLK_FCC1, CPM_CLK9, 4},
	153	{CPM_CLK_FCC1, CPM_CLK10, 5},
	154	{CPM_CLK_FCC1, CPM_CLK11, 6},
	155	{CPM_CLK_FCC1, CPM_CLK12, 7},
	156	{CPM_CLK_FCC2, CPM_BRG5, 0},
	157	{CPM_CLK_FCC2, CPM_BRG6, 1},
	158	{CPM_CLK_FCC2, CPM_BRG7, 2},
	159	{CPM_CLK_FCC2, CPM_BRG8, 3},
	160	{CPM_CLK_FCC2, CPM_CLK13, 4},
	161	{CPM_CLK_FCC2, CPM_CLK14, 5},
	162	{CPM_CLK_FCC2, CPM_CLK15, 6},
	163	{CPM_CLK_FCC2, CPM_CLK16, 7},
	164	{CPM_CLK_FCC3, CPM_BRG5, 0},
	165	{CPM_CLK_FCC3, CPM_BRG6, 1},
	166	{CPM_CLK_FCC3, CPM_BRG7, 2},
	167	{CPM_CLK_FCC3, CPM_BRG8, 3},
	168	{CPM_CLK_FCC3, CPM_CLK13, 4},
	169	{CPM_CLK_FCC3, CPM_CLK14, 5},
	170	{CPM_CLK_FCC3, CPM_CLK15, 6},
2652d4ec SW	171	{CPM_CLK_FCC3, CPM_CLK16, 7},
	172	{CPM_CLK_SCC1, CPM_BRG1, 0},
	173	{CPM_CLK_SCC1, CPM_BRG2, 1},
	174	{CPM_CLK_SCC1, CPM_BRG3, 2},
	175	{CPM_CLK_SCC1, CPM_BRG4, 3},
	176	{CPM_CLK_SCC1, CPM_CLK11, 4},
	177	{CPM_CLK_SCC1, CPM_CLK12, 5},
	178	{CPM_CLK_SCC1, CPM_CLK3, 6},
	179	{CPM_CLK_SCC1, CPM_CLK4, 7},
	180	{CPM_CLK_SCC2, CPM_BRG1, 0},
	181	{CPM_CLK_SCC2, CPM_BRG2, 1},
	182	{CPM_CLK_SCC2, CPM_BRG3, 2},
	183	{CPM_CLK_SCC2, CPM_BRG4, 3},
	184	{CPM_CLK_SCC2, CPM_CLK11, 4},
	185	{CPM_CLK_SCC2, CPM_CLK12, 5},
	186	{CPM_CLK_SCC2, CPM_CLK3, 6},
	187	{CPM_CLK_SCC2, CPM_CLK4, 7},
	188	{CPM_CLK_SCC3, CPM_BRG1, 0},
	189	{CPM_CLK_SCC3, CPM_BRG2, 1},
	190	{CPM_CLK_SCC3, CPM_BRG3, 2},
	191	{CPM_CLK_SCC3, CPM_BRG4, 3},
	192	{CPM_CLK_SCC3, CPM_CLK5, 4},
	193	{CPM_CLK_SCC3, CPM_CLK6, 5},
	194	{CPM_CLK_SCC3, CPM_CLK7, 6},
	195	{CPM_CLK_SCC3, CPM_CLK8, 7},
	196	{CPM_CLK_SCC4, CPM_BRG1, 0},
	197	{CPM_CLK_SCC4, CPM_BRG2, 1},
	198	{CPM_CLK_SCC4, CPM_BRG3, 2},
	199	{CPM_CLK_SCC4, CPM_BRG4, 3},
	200	{CPM_CLK_SCC4, CPM_CLK5, 4},
	201	{CPM_CLK_SCC4, CPM_CLK6, 5},
	202	{CPM_CLK_SCC4, CPM_CLK7, 6},
	203	{CPM_CLK_SCC4, CPM_CLK8, 7},
	204	};
d3465c92 VB	205
	206	im_cpmux = cpm2_map(im_cpmux);
	207
	208	switch (target) {
	209	case CPM_CLK_SCC1:
	210	reg = &im_cpmux->cmx_scr;
	211	shift = 24;
025306f3	212	break;
d3465c92 VB	213	case CPM_CLK_SCC2:
	214	reg = &im_cpmux->cmx_scr;
	215	shift = 16;
	216	break;
	217	case CPM_CLK_SCC3:
	218	reg = &im_cpmux->cmx_scr;
	219	shift = 8;
	220	break;
	221	case CPM_CLK_SCC4:
	222	reg = &im_cpmux->cmx_scr;
	223	shift = 0;
	224	break;
	225	case CPM_CLK_FCC1:
	226	reg = &im_cpmux->cmx_fcr;
	227	shift = 24;
	228	break;
	229	case CPM_CLK_FCC2:
	230	reg = &im_cpmux->cmx_fcr;
	231	shift = 16;
	232	break;
	233	case CPM_CLK_FCC3:
	234	reg = &im_cpmux->cmx_fcr;
	235	shift = 8;
	236	break;
	237	default:
	238	printk(KERN_ERR "cpm2_clock_setup: invalid clock target\n");
	239	return -EINVAL;
	240	}
	241
2652d4ec	242	for (i = 0; i < ARRAY_SIZE(clk_map); i++) {
d3465c92 VB	243	if (clk_map[i][0] == target && clk_map[i][1] == clock) {
	244	bits = clk_map[i][2];
	245	break;
	246	}
	247	}
2652d4ec	248	if (i == ARRAY_SIZE(clk_map))
d3465c92 VB	249	ret = -EINVAL;
	250
	251	bits <<= shift;
	252	mask <<= shift;
2652d4ec	253
1cca2d2b WO	254	if (mode == CPM_CLK_RTX) {
	255	bits \|= bits << 3;
	256	mask \|= mask << 3;
	257	} else if (mode == CPM_CLK_RX) {
	258	bits <<= 3;
	259	mask <<= 3;
	260	}
	261
d3465c92 VB	262	out_be32(reg, (in_be32(reg) & ~mask) \| bits);
	263
	264	cpm2_unmap(im_cpmux);
	265	return ret;
	266	}
	267
6c552983	268	int __init cpm2_smc_clk_setup(enum cpm_clk_target target, int clock)
2652d4ec SW	269	{
	270	int ret = 0;
	271	int shift;
	272	int i, bits = 0;
	273	cpmux_t __iomem *im_cpmux;
	274	u8 __iomem *reg;
	275	u8 mask = 3;
	276
	277	u8 clk_map[][3] = {
	278	{CPM_CLK_SMC1, CPM_BRG1, 0},
	279	{CPM_CLK_SMC1, CPM_BRG7, 1},
	280	{CPM_CLK_SMC1, CPM_CLK7, 2},
	281	{CPM_CLK_SMC1, CPM_CLK9, 3},
	282	{CPM_CLK_SMC2, CPM_BRG2, 0},
	283	{CPM_CLK_SMC2, CPM_BRG8, 1},
	284	{CPM_CLK_SMC2, CPM_CLK4, 2},
	285	{CPM_CLK_SMC2, CPM_CLK15, 3},
	286	};
	287
	288	im_cpmux = cpm2_map(im_cpmux);
	289
	290	switch (target) {
	291	case CPM_CLK_SMC1:
	292	reg = &im_cpmux->cmx_smr;
	293	mask = 3;
	294	shift = 4;
	295	break;
	296	case CPM_CLK_SMC2:
	297	reg = &im_cpmux->cmx_smr;
	298	mask = 3;
	299	shift = 0;
	300	break;
	301	default:
	302	printk(KERN_ERR "cpm2_smc_clock_setup: invalid clock target\n");
	303	return -EINVAL;
	304	}
	305
	306	for (i = 0; i < ARRAY_SIZE(clk_map); i++) {
	307	if (clk_map[i][0] == target && clk_map[i][1] == clock) {
	308	bits = clk_map[i][2];
	309	break;
	310	}
	311	}
	312	if (i == ARRAY_SIZE(clk_map))
	313	ret = -EINVAL;
	314
	315	bits <<= shift;
	316	mask <<= shift;
	317
	318	out_8(reg, (in_8(reg) & ~mask) \| bits);
	319
	320	cpm2_unmap(im_cpmux);
	321	return ret;
	322	}
	323
7f21f529 SW	324	struct cpm2_ioports {
	325	u32 dir, par, sor, odr, dat;
	326	u32 res[3];
	327	};
	328
6c552983	329	void __init cpm2_set_pin(int port, int pin, int flags)
7f21f529 SW	330	{
	331	struct cpm2_ioports __iomem *iop =
	332	(struct cpm2_ioports __iomem *)&cpm2_immr->im_ioport;
	333
	334	pin = 1 << (31 - pin);
	335
	336	if (flags & CPM_PIN_OUTPUT)
	337	setbits32(&iop[port].dir, pin);
	338	else
	339	clrbits32(&iop[port].dir, pin);
	340
	341	if (!(flags & CPM_PIN_GPIO))
	342	setbits32(&iop[port].par, pin);
	343	else
	344	clrbits32(&iop[port].par, pin);
	345
	346	if (flags & CPM_PIN_SECONDARY)
	347	setbits32(&iop[port].sor, pin);
	348	else
	349	clrbits32(&iop[port].sor, pin);
	350
	351	if (flags & CPM_PIN_OPENDRAIN)
	352	setbits32(&iop[port].odr, pin);
	353	else
	354	clrbits32(&iop[port].odr, pin);
	355	}