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/*
* (C) Copyright 2009
* Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm/ppc4xx-gpio.h>
enum {
HWTYPE_DLVISION_CPU = 0,
HWTYPE_DLVISION_CON = 1,
};
#define HWREV_100 6
int board_early_init_f(void)
{
mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
mtdcr(UIC0ER, 0x00000000); /* disable all ints */
mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical */
mtdcr(UIC0PR, 0xFFFFFF80); /* set int polarities */
mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest prio */
mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
/*
* EBC Configuration Register: set ready timeout to 512 ebc-clks
* -> ca. 15 us
*/
mtebc(EBC0_CFG, 0xa8400000); /* ebc always driven */
/*
* setup io-latches
*/
out_le16((void *)CONFIG_SYS_LATCH_BASE, 0x00f0);
out_le16((void *)(CONFIG_SYS_LATCH_BASE + 0x100), 0x0002);
out_le16((void *)(CONFIG_SYS_LATCH_BASE + 0x200), 0x0000);
return 0;
}
int misc_init_r(void)
{
/*
* set "startup-finished"-gpios
*/
gpio_write_bit(21, 0);
gpio_write_bit(22, 1);
return 0;
}
/*
* Check Board Identity:
*/
int checkboard(void)
{
char buf[64];
int i = getenv_f("serial#", buf, sizeof(buf));
u8 channel2_msr = in_8((void *)CONFIG_UART_BASE + 0x26);
u8 channel3_msr = in_8((void *)CONFIG_UART_BASE + 0x36);
u8 channel7_msr = in_8((void *)CONFIG_UART_BASE + 0x76);
u8 unit_type;
u8 local_con;
u8 audio;
u8 hardware_version;
printf("Board: ");
unit_type = (channel2_msr & 0x80) ? 0x01 : 0x00;
local_con = (channel2_msr & 0x20) ? 0x01 : 0x00;
audio = (channel3_msr & 0x20) ? 0x01 : 0x00;
hardware_version =
((channel7_msr & 0x20) ? 0x01 : 0x00)
| ((channel7_msr & 0x80) ? 0x02 : 0x00)
| ((channel7_msr & 0x40) ? 0x04 : 0x00);
switch (unit_type) {
case HWTYPE_DLVISION_CON:
printf("DL-Vision-CON");
break;
case HWTYPE_DLVISION_CPU:
printf("DL-Vision-CPU");
break;
default:
printf("UnitType %d, unsupported", unit_type);
break;
}
if (i > 0) {
puts(", serial# ");
puts(buf);
}
puts("\n ");
switch (hardware_version) {
case HWREV_100:
printf("HW-Ver 1.00");
break;
default:
printf("HW-Ver %d, unsupported",
hardware_version);
break;
}
if (local_con)
printf(", local console");
if (audio)
printf(", audio support");
puts("\n");
return 0;
}
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