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/*
* Copyright (C) 2012 Juergen Beisert
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <common.h>
#include <driver.h>
#include <init.h>
#include <gpio.h>
#include <generated/mach-types.h>
#include <asm/armlinux.h>
#include <mach/s3c-iomap.h>
#include <mach/s3c-generic.h>
#include <mach/iomux.h>
#include "tiny6410.h"
static const unsigned tiny6410_pin_usage[] = {
/* UART0 */
GPA2_GPIO | GPIO_IN | ENABLE_PU, /* CTS not connected */
GPA3_GPIO | GPIO_IN | ENABLE_PU, /* RTS not connected */
/* local bus' D0 ... D15 are always active */
/* local bus' A0...A5 are always active */
/* internal NAND memory */
GPO0_NCS2, /* NAND's first chip select line */
/* NAND's second chip select line, not used */
GPO1_GPIO | GPIO_OUT | GPIO_VAL(1),
GPP3_FALE,
GPP4_FCLE,
GPP5_FWE,
GPP6_FRE,
GPP7_RNB, /* external pull-up */
GPF13_GPIO | GPIO_OUT | GPIO_VAL(0), /* OTG power supply, 0 = off */
/* nowhere connected */
GPO2_GPIO | GPIO_IN | ENABLE_PU,
GPO3_GPIO | GPIO_IN | ENABLE_PU,
GPO4_GPIO | GPIO_IN | ENABLE_PU,
GPO5_GPIO | GPIO_IN | ENABLE_PU,
/* local bus address lines 6...15 are nowhere connected */
GPO6_GPIO | GPIO_IN | ENABLE_PU,
GPO7_GPIO | GPIO_IN | ENABLE_PU,
GPO8_GPIO | GPIO_IN | ENABLE_PU,
GPO9_GPIO | GPIO_IN | ENABLE_PU,
GPO10_GPIO | GPIO_IN | ENABLE_PU,
GPO11_GPIO | GPIO_IN | ENABLE_PU,
GPO12_GPIO | GPIO_IN | ENABLE_PU,
GPO13_GPIO | GPIO_IN | ENABLE_PU,
GPO14_GPIO | GPIO_IN | ENABLE_PU,
GPO15_GPIO | GPIO_IN | ENABLE_PU,
};
static int tiny6410_mem_init(void)
{
arm_add_mem_device("ram0", S3C_SDRAM_BASE, s3c6410_get_memory_size());
return 0;
}
mem_initcall(tiny6410_mem_init);
void tiny6410_init(const char *bb_name)
{
int i;
/* ----------- configure the access to the outer space ---------- */
for (i = 0; i < ARRAY_SIZE(tiny6410_pin_usage); i++)
s3c_gpio_mode(tiny6410_pin_usage[i]);
armlinux_set_architecture(MACH_TYPE_TINY6410);
}
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