mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 22:03:15 +00:00
f0c0b3a9e6
A large number of boards incorrectly used getenv() in their board init code running before relocation. In some cases this caused U-Boot to hang when certain environment variables grew too long. Fix the code to use getenv_r(). Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Stefan Roese <sr@denx.de> Cc: The LEOX team <team@leox.org> Cc: Michael Schwingen <michael@schwingen.org> Cc: Georg Schardt <schardt@team-ctech.de> Cc: Werner Pfister <Pfister_Werner@intercontrol.de> Cc: Dirk Eibach <eibach@gdsys.de> Cc: Peter De Schrijver <p2@mind.be> Cc: John Zhan <zhanz@sinovee.com> Cc: Rishi Bhattacharya <rishi@ti.com> Cc: Peter Tyser <ptyser@xes-inc.com>
138 lines
3.2 KiB
C
138 lines
3.2 KiB
C
/*
|
|
* (C) Copyright 2009
|
|
* Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#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;
|
|
}
|