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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
101 lines
1.5 KiB
C
101 lines
1.5 KiB
C
/*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Marius Groeger <mgroeger@sysgo.de>
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*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Alex Zuepke <azu@sysgo.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* CPU specific code
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*/
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#include <common.h>
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#include <command.h>
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#include <netdev.h>
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#include <asm/arch/ixp425.h>
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#include <asm/system.h>
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static void cache_flush(void);
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#if defined(CONFIG_DISPLAY_CPUINFO)
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int print_cpuinfo (void)
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{
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unsigned long id;
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int speed = 0;
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asm ("mrc p15, 0, %0, c0, c0, 0":"=r" (id));
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puts("CPU: Intel IXP425 at ");
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switch ((id & 0x000003f0) >> 4) {
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case 0x1c:
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speed = 533;
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break;
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case 0x1d:
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speed = 400;
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break;
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case 0x1f:
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speed = 266;
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break;
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}
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if (speed)
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printf("%d MHz\n", speed);
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else
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puts("unknown revision\n");
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return 0;
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}
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#endif /* CONFIG_DISPLAY_CPUINFO */
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int cleanup_before_linux (void)
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{
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/*
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* this function is called just before we call linux
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* it prepares the processor for linux
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*
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* just disable everything that can disturb booting linux
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*/
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disable_interrupts ();
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/* turn off I-cache */
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icache_disable();
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dcache_disable();
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/* flush I-cache */
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cache_flush();
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return 0;
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}
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/* flush I/D-cache */
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static void cache_flush (void)
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{
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unsigned long i = 0;
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asm ("mcr p15, 0, %0, c7, c5, 0": :"r" (i));
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}
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/* FIXME */
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/*
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void pci_init(void)
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{
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return;
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}
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*/
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int cpu_eth_init(bd_t *bis)
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{
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#ifdef CONFIG_IXP4XX_NPE
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npe_initialize(bis);
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#endif
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return 0;
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}
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