4fb62ededf
The registers used to configure and set the multifunction pins on the 5272 ColdFire are defined as absolute addresses. So the use of them does not need to be offset relative to the peripheral region address. Fix two cases of incorrect usage of these addresses. Both affect UART initialization, one in the common UART pin setup code, the other in the NETtel board specific UART signal handling. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
107 lines
2.8 KiB
C
107 lines
2.8 KiB
C
/***************************************************************************/
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/*
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* linux/arch/m68knommu/platform/5272/config.c
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*
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* Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
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* Copyright (C) 2001-2002, 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/io.h>
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#include <linux/phy.h>
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#include <linux/phy_fixed.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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/*
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* Some platforms need software versions of the GPIO data registers.
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*/
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unsigned short ppdata;
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unsigned char ledbank = 0xff;
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/***************************************************************************/
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static void __init m5272_uarts_init(void)
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{
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u32 v;
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/* Enable the output lines for the serial ports */
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v = readl(MCFSIM_PBCNT);
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v = (v & ~0x000000ff) | 0x00000055;
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writel(v, MCFSIM_PBCNT);
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v = readl(MCFSIM_PDCNT);
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v = (v & ~0x000003fc) | 0x000002a8;
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writel(v, MCFSIM_PDCNT);
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}
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/***************************************************************************/
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static void m5272_cpu_reset(void)
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{
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local_irq_disable();
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/* Set watchdog to reset, and enabled */
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__raw_writew(0, MCFSIM_WIRR);
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__raw_writew(1, MCFSIM_WRRR);
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__raw_writew(0, MCFSIM_WCR);
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for (;;)
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/* wait for watchdog to timeout */;
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}
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/***************************************************************************/
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void __init config_BSP(char *commandp, int size)
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{
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#if defined (CONFIG_MOD5272)
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/* Set base of device vectors to be 64 */
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writeb(0x40, MCFSIM_PIVR);
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#endif
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#if defined(CONFIG_NETtel) || defined(CONFIG_SCALES)
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/* Copy command line from FLASH to local buffer... */
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memcpy(commandp, (char *) 0xf0004000, size);
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commandp[size-1] = 0;
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#elif defined(CONFIG_CANCam)
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/* Copy command line from FLASH to local buffer... */
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memcpy(commandp, (char *) 0xf0010000, size);
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commandp[size-1] = 0;
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#endif
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mach_reset = m5272_cpu_reset;
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mach_sched_init = hw_timer_init;
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}
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/***************************************************************************/
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/*
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* Some 5272 based boards have the FEC ethernet diectly connected to
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* an ethernet switch. In this case we need to use the fixed phy type,
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* and we need to declare it early in boot.
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*/
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static struct fixed_phy_status nettel_fixed_phy_status __initdata = {
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.link = 1,
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.speed = 100,
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.duplex = 0,
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};
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/***************************************************************************/
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static int __init init_BSP(void)
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{
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m5272_uarts_init();
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fixed_phy_add(PHY_POLL, 0, &nettel_fixed_phy_status);
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return 0;
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}
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arch_initcall(init_BSP);
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/***************************************************************************/
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