mirror of
https://github.com/AsahiLinux/u-boot
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cdb749778a
While running from flash, i. e. before relocation, we have only a limited C runtime environment without writable data segment. In this phase, some configurations (for example with environment in EEPROM) must not use the normal getenv(), but a special function. This function had been called getenv_r(), with the idea that the "_r" suffix would mean the same as in the _r_eentrant versions of some of the C library functions (for example getdate vs. getdate_r, getgrent vs. getgrent_r, etc.). Unfortunately this was a misleading name, as in U-Boot the "_r" generally means "running from RAM", i. e. _after_ relocation. To avoid confusion, rename into getenv_f() [as "running from flash"] Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de>
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/*
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* (C) Copyright 2001
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* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include "ocrtc.h"
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#include <asm/processor.h>
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#include <i2c.h>
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#include <command.h>
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extern void lxt971_no_sleep(void);
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int board_early_init_f (void)
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{
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/*
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* IRQ 0-15 405GP internally generated; active high; level sensitive
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* IRQ 16 405GP internally generated; active low; level sensitive
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* IRQ 17-24 RESERVED
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* IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
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* IRQ 26 (EXT IRQ 1) CAN1; active low; level sensitive
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* IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive
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* IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive
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* IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
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* IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive
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* IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
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*/
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mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
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mtdcr (UIC0ER, 0x00000000); /* disable all ints */
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mtdcr (UIC0CR, 0x00000000); /* set all to be non-critical */
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mtdcr (UIC0PR, 0xFFFFFF81); /* set int polarities */
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mtdcr (UIC0TR, 0x10000000); /* set int trigger levels */
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mtdcr (UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority */
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mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
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/*
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* EBC Configuration Register: clear EBTC -> high-Z ebc signals between
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* transfers, set device-paced timeout to 256 cycles
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*/
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mtebc (EBC0_CFG, 0x20400000);
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return 0;
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}
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/*
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* Check Board Identity:
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*/
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int checkboard (void)
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{
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char str[64];
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int i = getenv_f("serial#", str, sizeof (str));
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puts ("Board: ");
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if (i == -1) {
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#ifdef CONFIG_OCRTC
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puts ("### No HW ID - assuming OCRTC");
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#endif
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#ifdef CONFIG_ORSG
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puts ("### No HW ID - assuming ORSG");
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#endif
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} else {
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puts (str);
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}
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putc ('\n');
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/*
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* Disable sleep mode in LXT971
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*/
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lxt971_no_sleep();
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return (0);
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}
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