65 lines
1.6 KiB
ArmAsm
65 lines
1.6 KiB
ArmAsm
/*
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* Low-level initialization for EP93xx
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*
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* Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
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*
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* Copyright (C) 2006 Dominic Rath <Dominic.Rath@gmx.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <sizes.h>
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#include <mach/ep93xx-regs.h>
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#include <asm/barebox-arm-head.h>
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.globl barebox_arm_reset_vector
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barebox_arm_reset_vector:
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bl arm_cpu_lowlevel_init
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/* Turn on both LEDs */
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bl red_LED_on
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bl green_LED_on
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/* Configure flash wait states before we switch to the PLL */
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bl flash_cfg
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/* Set up PLL */
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bl pll_cfg
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/* Turn off the Green LED and leave the Red LED on */
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bl green_LED_off
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/* Setup SDRAM */
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bl sdram_cfg
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/* Turn on Green LED, Turn off the Red LED */
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bl green_LED_on
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bl red_LED_off
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/* switch to async mode */
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mrc p15, 0, r0, c1, c0, 0
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orr r0, r0, #0xc0000000
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mcr p15, 0, r0, c1, c0, 0
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/*
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* FIXME: This is suitable for the edb9301, the
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* only ep93xx board we have in our defconfigs.
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* Other boards need different values here.
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*/
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mov r0, #0x05000000
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mov r1, #SZ_8M
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mov r2, #0
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b barebox_arm_entry
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