blob: 8c6b0977aaeba342aebd577e0c6a0606f932da25 [file] [log] [blame]
John Otken9aa36772007-07-26 17:49:11 +02001/*
2 * (C) Copyright 2000-2005
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * (C) Copyright 2005-2007
6 * Beijing UD Technology Co., Ltd., taihusupport@amcc.com
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26#include <common.h>
27#include <command.h>
28#include <asm/processor.h>
29#include <asm/io.h>
30#include <spi.h>
Ben Warren052a5ea2008-08-31 20:37:00 -070031#include <netdev.h>
Stefan Roesede21eab2010-09-16 14:30:37 +020032#include <asm/ppc4xx-gpio.h>
John Otken9aa36772007-07-26 17:49:11 +020033
34extern int lcd_init(void);
35
36/*
37 * board_early_init_f
38 */
39int board_early_init_f(void)
40{
41 lcd_init();
42
Stefan Roese707fd362009-09-24 09:55:50 +020043 mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
44 mtdcr(UIC0ER, 0x00000000); /* disable all ints */
45 mtdcr(UIC0CR, 0x00000000);
46 mtdcr(UIC0PR, 0xFFFF7F00); /* set int polarities */
47 mtdcr(UIC0TR, 0x00000000); /* set int trigger levels */
48 mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
49 mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority */
John Otken9aa36772007-07-26 17:49:11 +020050
Stefan Roese918010a2009-09-09 16:25:29 +020051 mtebc(PB3AP, CONFIG_SYS_EBC_PB3AP); /* memory bank 3 (CPLD_LCM) initialization */
52 mtebc(PB3CR, CONFIG_SYS_EBC_PB3CR);
John Otken9aa36772007-07-26 17:49:11 +020053
Stefan Roesea5d182e2007-08-14 14:44:41 +020054 /*
55 * Configure CPC0_PCI to enable PerWE as output
56 * and enable the internal PCI arbiter
57 */
Stefan Roese918010a2009-09-09 16:25:29 +020058 mtdcr(CPC0_PCI, CPC0_PCI_SPE | CPC0_PCI_HOST_CFG_EN | CPC0_PCI_ARBIT_EN);
Stefan Roesea5d182e2007-08-14 14:44:41 +020059
John Otken9aa36772007-07-26 17:49:11 +020060 return 0;
61}
62
63/*
64 * Check Board Identity:
65 */
66int checkboard(void)
67{
Wolfgang Denk5c1cfee2011-05-04 10:32:28 +000068 char buf[64];
69 int i = getenv_f("serial#", buf, sizeof(buf));
John Otken9aa36772007-07-26 17:49:11 +020070
71 puts("Board: Taihu - AMCC PPC405EP Evaluation Board");
72
Wolfgang Denk5c1cfee2011-05-04 10:32:28 +000073 if (i > 0) {
John Otken9aa36772007-07-26 17:49:11 +020074 puts(", serial# ");
Wolfgang Denk5c1cfee2011-05-04 10:32:28 +000075 puts(buf);
John Otken9aa36772007-07-26 17:49:11 +020076 }
77 putc('\n');
78
79 return 0;
80}
81
Wolfgang Denk6262d0212010-06-28 22:00:46 +020082static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char * const argv[])
John Otken9aa36772007-07-26 17:49:11 +020083{
84 char stat;
85 int i;
86
87 stat = in_8((u8 *) CPLD_REG0_ADDR);
88 printf("SW2 status: ");
89 for (i=0; i<4; i++) /* 4-position */
90 printf("%d:%s ", i, stat & (0x08 >> i)?"on":"off");
91 printf("\n");
92 return 0;
93}
94
95U_BOOT_CMD (
96 sw2_stat, 1, 1, do_sw_stat,
Peter Tyserdfb72b82009-01-27 18:03:12 -060097 "show status of switch 2",
Wolfgang Denkc54781c2009-05-24 17:06:54 +020098 ""
99);
John Otken9aa36772007-07-26 17:49:11 +0200100
Wolfgang Denk6262d0212010-06-28 22:00:46 +0200101static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char * const argv[])
John Otken9aa36772007-07-26 17:49:11 +0200102{
103 int led_no;
104
Wolfgang Denk3b683112010-07-17 01:06:04 +0200105 if (argc != 3)
106 return cmd_usage(cmd_tp);
John Otken9aa36772007-07-26 17:49:11 +0200107
108 led_no = simple_strtoul(argv[1], NULL, 16);
Wolfgang Denk3b683112010-07-17 01:06:04 +0200109 if (led_no != 1 && led_no != 2)
110 return cmd_usage(cmd_tp);
John Otken9aa36772007-07-26 17:49:11 +0200111
112 if (strcmp(argv[2],"off") == 0x0) {
113 if (led_no == 1)
114 gpio_write_bit(30, 1);
115 else
116 gpio_write_bit(31, 1);
117 } else if (strcmp(argv[2],"on") == 0x0) {
118 if (led_no == 1)
119 gpio_write_bit(30, 0);
120 else
121 gpio_write_bit(31, 0);
122 } else {
Wolfgang Denk3b683112010-07-17 01:06:04 +0200123 return cmd_usage(cmd_tp);
John Otken9aa36772007-07-26 17:49:11 +0200124 }
125
126 return 0;
127}
128
129U_BOOT_CMD (
130 led_ctl, 3, 1, do_led_ctl,
Peter Tyserdfb72b82009-01-27 18:03:12 -0600131 "make led 1 or 2 on or off",
John Otken9aa36772007-07-26 17:49:11 +0200132 "<led_no> <on/off> - make led <led_no> on/off,\n"
Wolfgang Denkc54781c2009-05-24 17:06:54 +0200133 "\tled_no is 1 or 2"
134);
John Otken9aa36772007-07-26 17:49:11 +0200135
136#define SPI_CS_GPIO0 0
137#define SPI_SCLK_GPIO14 14
138#define SPI_DIN_GPIO15 15
139#define SPI_DOUT_GPIO16 16
140
141void spi_scl(int bit)
142{
143 gpio_write_bit(SPI_SCLK_GPIO14, bit);
144}
145
146void spi_sda(int bit)
147{
148 gpio_write_bit(SPI_DOUT_GPIO16, bit);
149}
150
151unsigned char spi_read(void)
152{
Markus Brunnerc459e392008-03-05 21:38:12 +0100153 return (unsigned char)gpio_read_in_bit(SPI_DIN_GPIO15);
John Otken9aa36772007-07-26 17:49:11 +0200154}
155
Haavard Skinnemoend74084a2008-05-16 11:10:31 +0200156int spi_cs_is_valid(unsigned int bus, unsigned int cs)
John Otken9aa36772007-07-26 17:49:11 +0200157{
Haavard Skinnemoend74084a2008-05-16 11:10:31 +0200158 return bus == 0 && cs == 0;
John Otken9aa36772007-07-26 17:49:11 +0200159}
160
Haavard Skinnemoend74084a2008-05-16 11:10:31 +0200161void spi_cs_activate(struct spi_slave *slave)
162{
163 gpio_write_bit(SPI_CS_GPIO0, 1);
164}
John Otken9aa36772007-07-26 17:49:11 +0200165
Haavard Skinnemoend74084a2008-05-16 11:10:31 +0200166void spi_cs_deactivate(struct spi_slave *slave)
167{
168 gpio_write_bit(SPI_CS_GPIO0, 0);
169}
John Otken9aa36772007-07-26 17:49:11 +0200170
171#ifdef CONFIG_PCI
172static unsigned char int_lines[32] = {
173 29, 30, 27, 28, 29, 30, 25, 27,
174 29, 30, 27, 28, 29, 30, 27, 28,
175 29, 30, 27, 28, 29, 30, 27, 28,
176 29, 30, 27, 28, 29, 30, 27, 28};
177
178static void taihu_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
179{
180 unsigned char int_line = int_lines[PCI_DEV(dev) & 31];
181
182 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
183}
184
185int pci_pre_init(struct pci_controller *hose)
186{
187 hose->fixup_irq = taihu_pci_fixup_irq;
188 return 1;
189}
190#endif /* CONFIG_PCI */
Ben Warren052a5ea2008-08-31 20:37:00 -0700191
192int board_eth_init(bd_t *bis)
193{
Stefan Roeseb33e6d72009-02-11 09:29:33 +0100194 cpu_eth_init(bis);
Ben Warren052a5ea2008-08-31 20:37:00 -0700195 return pci_eth_init(bis);
196}