CRIS: Remove obsolete pinmux.c, now machine dependent.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>

arch/cris/arch-v32/kernel/pinmux.c

-/*
- * Allocator for I/O pins. All pins are allocated to GPIO at bootup.
- * Unassigned pins and GPIO pins can be allocated to a fixed interface
- * or the I/O processor instead.
- *
- * Copyright (c) 2004 Axis Communications AB.
- */
-
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/spinlock.h>
-#include <arch/hwregs/reg_map.h>
-#include <arch/hwregs/reg_rdwr.h>
-#include <arch/pinmux.h>
-#include <arch/hwregs/pinmux_defs.h>
-
-#undef DEBUG
-
-#define PORT_PINS 18
-#define PORTS 4
-
-static char pins[PORTS][PORT_PINS];
-static DEFINE_SPINLOCK(pinmux_lock);
-
-static void crisv32_pinmux_set(int port);
-
-int
-crisv32_pinmux_init(void)
-{
-	static int initialized = 0;
-
-	if (!initialized) {
-		reg_pinmux_rw_pa pa = REG_RD(pinmux, regi_pinmux, rw_pa);
-		initialized = 1;
-		pa.pa0 = pa.pa1 = pa.pa2 = pa.pa3 =
-		pa.pa4 = pa.pa5 = pa.pa6 = pa.pa7 = regk_pinmux_yes;
-		REG_WR(pinmux, regi_pinmux, rw_pa, pa);
-		crisv32_pinmux_alloc(PORT_B, 0, PORT_PINS - 1, pinmux_gpio);
-		crisv32_pinmux_alloc(PORT_C, 0, PORT_PINS - 1, pinmux_gpio);
-		crisv32_pinmux_alloc(PORT_D, 0, PORT_PINS - 1, pinmux_gpio);
-		crisv32_pinmux_alloc(PORT_E, 0, PORT_PINS - 1, pinmux_gpio);
-	}
-
-	return 0;
-}
-
-int
-crisv32_pinmux_alloc(int port, int first_pin, int last_pin, enum pin_mode mode)
-{
-	int i;
-	unsigned long flags;
-
-	crisv32_pinmux_init();
-
-	if (port > PORTS || port < 0)
-		return -EINVAL;
-
-	spin_lock_irqsave(&pinmux_lock, flags);
-
-	for (i = first_pin; i <= last_pin; i++)
-	{
-		if ((pins[port][i] != pinmux_none) && (pins[port][i] != pinmux_gpio) &&
-		    (pins[port][i] != mode))
-		{
-			spin_unlock_irqrestore(&pinmux_lock, flags);
-#ifdef DEBUG
-			panic("Pinmux alloc failed!\n");
-#endif
-			return -EPERM;
-		}
-	}
-
-	for (i = first_pin; i <= last_pin; i++)
-		pins[port][i] = mode;
-
-	crisv32_pinmux_set(port);
-
-	spin_unlock_irqrestore(&pinmux_lock, flags);
-
-	return 0;
-}
-
-int
-crisv32_pinmux_alloc_fixed(enum fixed_function function)
-{
-	int ret = -EINVAL;
-	char saved[sizeof pins];
-	unsigned long flags;
-
-	spin_lock_irqsave(&pinmux_lock, flags);
-
-	/* Save internal data for recovery */
-	memcpy(saved, pins, sizeof pins);
-
-	reg_pinmux_rw_hwprot hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot);
-
-	switch(function)
-	{
-	case pinmux_ser1:
-		ret = crisv32_pinmux_alloc(PORT_C, 4, 7, pinmux_fixed);
-		hwprot.ser1 = regk_pinmux_yes;
-		break;
-	case pinmux_ser2:
-		ret = crisv32_pinmux_alloc(PORT_C, 8, 11, pinmux_fixed);
-		hwprot.ser2 = regk_pinmux_yes;
-		break;
-	case pinmux_ser3:
-		ret = crisv32_pinmux_alloc(PORT_C, 12, 15, pinmux_fixed);
-		hwprot.ser3 = regk_pinmux_yes;
-		break;
-	case pinmux_sser0:
-		ret = crisv32_pinmux_alloc(PORT_C, 0, 3, pinmux_fixed);
-		ret |= crisv32_pinmux_alloc(PORT_C, 16, 16, pinmux_fixed);
-		hwprot.sser0 = regk_pinmux_yes;
-		break;
-	case pinmux_sser1:
-		ret = crisv32_pinmux_alloc(PORT_D, 0, 4, pinmux_fixed);
-		hwprot.sser1 = regk_pinmux_yes;
-		break;
-	case pinmux_ata0:
-		ret = crisv32_pinmux_alloc(PORT_D, 5, 7, pinmux_fixed);
-		ret |= crisv32_pinmux_alloc(PORT_D, 15, 17, pinmux_fixed);
-		hwprot.ata0 = regk_pinmux_yes;
-		break;
-	case pinmux_ata1:
-		ret = crisv32_pinmux_alloc(PORT_D, 0, 4, pinmux_fixed);
-		ret |= crisv32_pinmux_alloc(PORT_E, 17, 17, pinmux_fixed);
-		hwprot.ata1 = regk_pinmux_yes;
-		break;
-	case pinmux_ata2:
-		ret = crisv32_pinmux_alloc(PORT_C, 11, 15, pinmux_fixed);
-		ret |= crisv32_pinmux_alloc(PORT_E, 3, 3, pinmux_fixed);
-		hwprot.ata2 = regk_pinmux_yes;
-		break;
-	case pinmux_ata3:
-		ret = crisv32_pinmux_alloc(PORT_C, 8, 10, pinmux_fixed);
-		ret |= crisv32_pinmux_alloc(PORT_C, 0, 2, pinmux_fixed);
-		hwprot.ata2 = regk_pinmux_yes;
-		break;
-	case pinmux_ata:
-		ret = crisv32_pinmux_alloc(PORT_B, 0, 15, pinmux_fixed);
-		ret |= crisv32_pinmux_alloc(PORT_D, 8, 15, pinmux_fixed);
-		hwprot.ata = regk_pinmux_yes;
-		break;
-	case pinmux_eth1:
-		ret = crisv32_pinmux_alloc(PORT_E, 0, 17, pinmux_fixed);
-		hwprot.eth1 = regk_pinmux_yes;
-		hwprot.eth1_mgm = regk_pinmux_yes;
-		break;
-	case pinmux_timer:
-		ret = crisv32_pinmux_alloc(PORT_C, 16, 16, pinmux_fixed);
-		hwprot.timer = regk_pinmux_yes;
-		spin_unlock_irqrestore(&pinmux_lock, flags);
-		return ret;
-	}
-
-	if (!ret)
-		REG_WR(pinmux, regi_pinmux, rw_hwprot, hwprot);
-	else
-		memcpy(pins, saved, sizeof pins);
-
-  spin_unlock_irqrestore(&pinmux_lock, flags);
-
-  return ret;
-}
-
-void
-crisv32_pinmux_set(int port)
-{
-	int i;
-	int gpio_val = 0;
-	int iop_val = 0;
-
-	for (i = 0; i < PORT_PINS; i++)
-	{
-		if (pins[port][i] == pinmux_gpio)
-			gpio_val |= (1 << i);
-		else if (pins[port][i] == pinmux_iop)
-			iop_val |= (1 << i);
-	}
-
-	REG_WRITE(int, regi_pinmux + REG_RD_ADDR_pinmux_rw_pb_gio + 8*port, gpio_val);
-	REG_WRITE(int, regi_pinmux + REG_RD_ADDR_pinmux_rw_pb_iop + 8*port, iop_val);
-
-#ifdef DEBUG
-       crisv32_pinmux_dump();
-#endif
-}
-
-int
-crisv32_pinmux_dealloc(int port, int first_pin, int last_pin)
-{
-	int i;
-	unsigned long flags;
-
-	crisv32_pinmux_init();
-
-	if (port > PORTS || port < 0)
-		return -EINVAL;
-
-	spin_lock_irqsave(&pinmux_lock, flags);
-
-	for (i = first_pin; i <= last_pin; i++)
-		pins[port][i] = pinmux_none;
-
-	crisv32_pinmux_set(port);
-	spin_unlock_irqrestore(&pinmux_lock, flags);
-
-	return 0;
-}
-
-void
-crisv32_pinmux_dump(void)
-{
-	int i, j;
-
-	crisv32_pinmux_init();
-
-	for (i = 0; i < PORTS; i++)
-	{
-		printk("Port %c\n", 'B'+i);
-		for (j = 0; j < PORT_PINS; j++)
-			printk("  Pin %d = %d\n", j, pins[i][j]);
-	}
-}
-
-__initcall(crisv32_pinmux_init);