ae909ea4ad
Most of the more modern ColdFire cores use the same code to reset the CPU (but it is different to most of the earlier cores). Currently that is duplicated in each of the sub-arch files. Pull out this common code and out a single copy of it with the other common reset code. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/***************************************************************************/
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/*
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* linux/arch/m68knommu/platform/528x/config.c
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*
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* Sub-architcture dependent initialization code for the Freescale
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* 5280, 5281 and 5282 CPUs.
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*
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* Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com)
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* Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
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*/
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/***************************************************************************/
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#include <linux/kernel.h>
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#include <linux/param.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <asm/machdep.h>
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#include <asm/coldfire.h>
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#include <asm/mcfsim.h>
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#include <asm/mcfuart.h>
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/***************************************************************************/
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#ifdef CONFIG_SPI_COLDFIRE_QSPI
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static void __init m528x_qspi_init(void)
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{
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/* setup Port QS for QSPI with gpio CS control */
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__raw_writeb(0x07, MCFGPIO_PQSPAR);
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}
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#endif /* CONFIG_SPI_COLDFIRE_QSPI */
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/***************************************************************************/
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static void __init m528x_uarts_init(void)
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{
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u8 port;
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/* make sure PUAPAR is set for UART0 and UART1 */
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port = readb(MCF5282_GPIO_PUAPAR);
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port |= 0x03 | (0x03 << 2);
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writeb(port, MCF5282_GPIO_PUAPAR);
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}
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/***************************************************************************/
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static void __init m528x_fec_init(void)
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{
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u16 v16;
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/* Set multi-function pins to ethernet mode for fec0 */
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v16 = readw(MCF_IPSBAR + 0x100056);
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writew(v16 | 0xf00, MCF_IPSBAR + 0x100056);
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writeb(0xc0, MCF_IPSBAR + 0x100058);
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}
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/***************************************************************************/
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#ifdef CONFIG_WILDFIRE
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void wildfire_halt(void)
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{
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writeb(0, 0x30000007);
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writeb(0x2, 0x30000007);
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}
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#endif
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#ifdef CONFIG_WILDFIREMOD
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void wildfiremod_halt(void)
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{
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printk(KERN_INFO "WildFireMod hibernating...\n");
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/* Set portE.5 to Digital IO */
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MCF5282_GPIO_PEPAR &= ~(1 << (5 * 2));
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/* Make portE.5 an output */
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MCF5282_GPIO_DDRE |= (1 << 5);
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/* Now toggle portE.5 from low to high */
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MCF5282_GPIO_PORTE &= ~(1 << 5);
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MCF5282_GPIO_PORTE |= (1 << 5);
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printk(KERN_EMERG "Failed to hibernate. Halting!\n");
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}
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#endif
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void __init config_BSP(char *commandp, int size)
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{
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#ifdef CONFIG_WILDFIRE
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mach_halt = wildfire_halt;
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#endif
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#ifdef CONFIG_WILDFIREMOD
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mach_halt = wildfiremod_halt;
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#endif
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mach_sched_init = hw_timer_init;
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m528x_uarts_init();
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m528x_fec_init();
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#ifdef CONFIG_SPI_COLDFIRE_QSPI
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m528x_qspi_init();
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#endif
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}
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/***************************************************************************/
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