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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / c346e466e0ea31016f8bd0a38b225f75b2a20a55 / . / board / kup / common / kup.c
blob: 03ab018c8977b2fd49bea61204060c1798f6d66c [file] [log] [blame]
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]1/*
2 * (C) Copyright 2004
3 * Klaus Heydeck, Kieback & Peter GmbH & Co KG, heydeck@kieback-peter.de.
4 *
Wolfgang Denk1a459662013-07-08 09:37:19 +0200[diff] [blame]5 * SPDX-License-Identifier: GPL-2.0+
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]6 */
7
8#include <common.h>
9#include <mpc8xx.h>
10#include "kup.h"
Heiko Schochere604e402010-07-19 23:46:48 +0200[diff] [blame]11#include <asm/io.h>
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]12
Heiko Schochere604e402010-07-19 23:46:48 +0200[diff] [blame]13
14int misc_init_f(void)
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]15{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200[diff] [blame]16 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]17 volatile sysconf8xx_t *siu = &immap->im_siu_conf;
18
Heiko Schochere604e402010-07-19 23:46:48 +0200[diff] [blame]19 while (in_be32(&siu->sc_sipend) & 0x20000000) {
20 debug("waiting for 5V VCC\n");
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]21 }
22
23 /* RS232 / RS485 default is RS232 */
Heiko Schochere604e402010-07-19 23:46:48 +0200[diff] [blame]24 clrbits_be16(&immap->im_ioport.iop_padat, PA_RS485);
25 clrbits_be16(&immap->im_ioport.iop_papar, PA_RS485);
26 clrbits_be16(&immap->im_ioport.iop_paodr, PA_RS485);
27 setbits_be16(&immap->im_ioport.iop_padir, PA_RS485);
28
29 /* IO Reset min 1 msec */
30 setbits_be16(&immap->im_ioport.iop_padat,
31 (PA_RESET_IO_01 | PA_RESET_IO_02));
32 clrbits_be16(&immap->im_ioport.iop_papar,
33 (PA_RESET_IO_01 | PA_RESET_IO_02));
34 clrbits_be16(&immap->im_ioport.iop_paodr,
35 (PA_RESET_IO_01 | PA_RESET_IO_02));
36 setbits_be16(&immap->im_ioport.iop_padir,
37 (PA_RESET_IO_01 | PA_RESET_IO_02));
38 udelay(1000);
39 clrbits_be16(&immap->im_ioport.iop_padat,
40 (PA_RESET_IO_01 | PA_RESET_IO_02));
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]41 return (0);
42}
43
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]44#ifdef CONFIG_IDE_LED
Heiko Schochere604e402010-07-19 23:46:48 +0200[diff] [blame]45void ide_led(uchar led, uchar status)
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]46{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200[diff] [blame]47 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]48
49 /* We have one led for both pcmcia slots */
Heiko Schochere604e402010-07-19 23:46:48 +0200[diff] [blame]50 if (status)
51 clrbits_be16(&immap->im_ioport.iop_padat, PA_LED_YELLOW);
52 else
53 setbits_be16(&immap->im_ioport.iop_padat, PA_LED_YELLOW);
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]54}
55#endif
56
Heiko Schochere604e402010-07-19 23:46:48 +0200[diff] [blame]57void poweron_key(void)
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]58{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200[diff] [blame]59 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]60
Heiko Schochere604e402010-07-19 23:46:48 +0200[diff] [blame]61 clrbits_be16(&immap->im_ioport.iop_pcpar, PC_SWITCH1);
62 clrbits_be16(&immap->im_ioport.iop_pcdir, PC_SWITCH1);
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]63
Heiko Schochere604e402010-07-19 23:46:48 +0200[diff] [blame]64 if (in_be16(&immap->im_ioport.iop_pcdat) & (PC_SWITCH1))
65 setenv("key1", "off");
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]66 else
Heiko Schochere604e402010-07-19 23:46:48 +0200[diff] [blame]67 setenv("key1", "on");
wdenk0608e042004-03-25 19:29:38 +0000[diff] [blame]68}