94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/*
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* Copyright (C) 2009 Juergen Beisert
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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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*/
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/**
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* @file
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* @brief a9m2410dev Baseboad specific initialization routines
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*
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*/
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#include <common.h>
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#include <driver.h>
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#include <init.h>
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#include <io.h>
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#include <mach/s3c-iomap.h>
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#include <mach/s3c-busctl.h>
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#include <mach/s3c24xx-gpio.h>
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/**
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* Initialize the CPU to be able to work with the a9m2410dev evaluation board
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*/
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int a9m2410dev_devices_init(void)
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{
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unsigned int reg;
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/* ---------- configure the GPIOs ------------- */
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writel(0x007FFFFF, S3C_GPACON);
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writel(0x00000000, S3C_GPCCON);
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writel(0x00000000, S3C_GPCUP);
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writel(0x00000000, S3C_GPDCON);
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writel(0x00000000, S3C_GPDUP);
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writel(0xAAAAAAAA, S3C_GPECON);
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writel(0x0000E03F, S3C_GPEUP);
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writel(0x00000000, S3C_GPBCON); /* all inputs */
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writel(0x00000007, S3C_GPBUP); /* pullup disabled for GPB0..3 */
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writel(0x00009000, S3C_GPFCON); /* GPF7 CLK_INT#, GPF6 Debug-LED */
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writel(0x000000FF, S3C_GPFUP);
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writel(readl(S3C_GPGDAT) | 0x1010, S3C_GPGDAT); /* switch off IDLE_SW#, switch off LCD backlight */
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writel(0x0100A93A, S3C_GPGCON); /* switch on USB device */
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writel(0x0000F000, S3C_GPGUP);
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writel(0x0029FAAA, S3C_GPHCON);
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writel((1 << 12) | (0 << 11), S3C_GPJDAT);
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writel(0x0016aaaa, S3C_GPJCON);
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writel(~((0<<12)| (1<<11)), S3C_GPJUP);
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writel((0 << 12) | (0 << 11), S3C_GPJDAT);
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writel(0x0016aaaa, S3C_GPJCON);
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writel(0x00001fff, S3C_GPJUP);
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writel(0x00000000, S3C_DSC0);
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writel(0x00000000, S3C_DSC1);
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/*
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* USB port1 normal, USB port0 normal, USB1 pads for device
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* PCLK output on CLKOUT0, UPLL CLK output on CLKOUT1,
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*/
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writel((readl(S3C_MISCCR) & ~0xFFFF) | 0x0140, S3C_MISCCR);
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/* ----------- configure the access to the outer space ---------- */
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reg = readl(S3C_BWSCON);
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/* CS#1 to access the network controller */
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reg &= ~0xf0;
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reg |= 0xe0;
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writel(0x1350, S3C_BANKCON1);
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/* CS#2 to the dual 16550 UART */
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reg &= ~0xf00;
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reg |= 0x400;
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writel(0x0d50, S3C_BANKCON2);
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writel(reg, S3C_BWSCON);
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/* release the reset signal to the network and UART device */
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reg = readl(S3C_MISCCR);
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reg |= 0x10000;
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writel(reg, S3C_MISCCR);
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return 0;
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}
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