blob: 87c9403e4a84286f92d26cfd591d65184e273138 [file] [log] [blame]
John Otkend4024bb2007-07-26 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 Warren10efa022008-08-31 20:37:00 -070031#include <netdev.h>
Stefan Roese09887762010-09-16 14:30:37 +020032#include <asm/ppc4xx-gpio.h>
John Otkend4024bb2007-07-26 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 Roese952e7762009-09-24 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 Otkend4024bb2007-07-26 17:49:11 +020050
Stefan Roesed1c3b272009-09-09 16:25:29 +020051 mtebc(PB3AP, CONFIG_SYS_EBC_PB3AP); /* memory bank 3 (CPLD_LCM) initialization */
52 mtebc(PB3CR, CONFIG_SYS_EBC_PB3CR);
John Otkend4024bb2007-07-26 17:49:11 +020053
Stefan Roese779e9752007-08-14 14:44:41 +020054 /*
55 * Configure CPC0_PCI to enable PerWE as output
56 * and enable the internal PCI arbiter
57 */
Stefan Roesed1c3b272009-09-09 16:25:29 +020058 mtdcr(CPC0_PCI, CPC0_PCI_SPE | CPC0_PCI_HOST_CFG_EN | CPC0_PCI_ARBIT_EN);
Stefan Roese779e9752007-08-14 14:44:41 +020059
John Otkend4024bb2007-07-26 17:49:11 +020060 return 0;
61}
62
63/*
64 * Check Board Identity:
65 */
66int checkboard(void)
67{
68 char *s = getenv("serial#");
69
70 puts("Board: Taihu - AMCC PPC405EP Evaluation Board");
71
72 if (s != NULL) {
73 puts(", serial# ");
74 puts(s);
75 }
76 putc('\n');
77
78 return 0;
79}
80
Wolfgang Denk54841ab2010-06-28 22:00:46 +020081static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char * const argv[])
John Otkend4024bb2007-07-26 17:49:11 +020082{
83 char stat;
84 int i;
85
86 stat = in_8((u8 *) CPLD_REG0_ADDR);
87 printf("SW2 status: ");
88 for (i=0; i<4; i++) /* 4-position */
89 printf("%d:%s ", i, stat & (0x08 >> i)?"on":"off");
90 printf("\n");
91 return 0;
92}
93
94U_BOOT_CMD (
95 sw2_stat, 1, 1, do_sw_stat,
Peter Tyser2fb26042009-01-27 18:03:12 -060096 "show status of switch 2",
Wolfgang Denka89c33d2009-05-24 17:06:54 +020097 ""
98);
John Otkend4024bb2007-07-26 17:49:11 +020099
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200100static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char * const argv[])
John Otkend4024bb2007-07-26 17:49:11 +0200101{
102 int led_no;
103
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200104 if (argc != 3)
105 return cmd_usage(cmd_tp);
John Otkend4024bb2007-07-26 17:49:11 +0200106
107 led_no = simple_strtoul(argv[1], NULL, 16);
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200108 if (led_no != 1 && led_no != 2)
109 return cmd_usage(cmd_tp);
John Otkend4024bb2007-07-26 17:49:11 +0200110
111 if (strcmp(argv[2],"off") == 0x0) {
112 if (led_no == 1)
113 gpio_write_bit(30, 1);
114 else
115 gpio_write_bit(31, 1);
116 } else if (strcmp(argv[2],"on") == 0x0) {
117 if (led_no == 1)
118 gpio_write_bit(30, 0);
119 else
120 gpio_write_bit(31, 0);
121 } else {
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200122 return cmd_usage(cmd_tp);
John Otkend4024bb2007-07-26 17:49:11 +0200123 }
124
125 return 0;
126}
127
128U_BOOT_CMD (
129 led_ctl, 3, 1, do_led_ctl,
Peter Tyser2fb26042009-01-27 18:03:12 -0600130 "make led 1 or 2 on or off",
John Otkend4024bb2007-07-26 17:49:11 +0200131 "<led_no> <on/off> - make led <led_no> on/off,\n"
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200132 "\tled_no is 1 or 2"
133);
John Otkend4024bb2007-07-26 17:49:11 +0200134
135#define SPI_CS_GPIO0 0
136#define SPI_SCLK_GPIO14 14
137#define SPI_DIN_GPIO15 15
138#define SPI_DOUT_GPIO16 16
139
140void spi_scl(int bit)
141{
142 gpio_write_bit(SPI_SCLK_GPIO14, bit);
143}
144
145void spi_sda(int bit)
146{
147 gpio_write_bit(SPI_DOUT_GPIO16, bit);
148}
149
150unsigned char spi_read(void)
151{
Markus Brunner772003e2008-03-05 21:38:12 +0100152 return (unsigned char)gpio_read_in_bit(SPI_DIN_GPIO15);
John Otkend4024bb2007-07-26 17:49:11 +0200153}
154
Haavard Skinnemoend255bb02008-05-16 11:10:31 +0200155int spi_cs_is_valid(unsigned int bus, unsigned int cs)
John Otkend4024bb2007-07-26 17:49:11 +0200156{
Haavard Skinnemoend255bb02008-05-16 11:10:31 +0200157 return bus == 0 && cs == 0;
John Otkend4024bb2007-07-26 17:49:11 +0200158}
159
Haavard Skinnemoend255bb02008-05-16 11:10:31 +0200160void spi_cs_activate(struct spi_slave *slave)
161{
162 gpio_write_bit(SPI_CS_GPIO0, 1);
163}
John Otkend4024bb2007-07-26 17:49:11 +0200164
Haavard Skinnemoend255bb02008-05-16 11:10:31 +0200165void spi_cs_deactivate(struct spi_slave *slave)
166{
167 gpio_write_bit(SPI_CS_GPIO0, 0);
168}
John Otkend4024bb2007-07-26 17:49:11 +0200169
170#ifdef CONFIG_PCI
171static unsigned char int_lines[32] = {
172 29, 30, 27, 28, 29, 30, 25, 27,
173 29, 30, 27, 28, 29, 30, 27, 28,
174 29, 30, 27, 28, 29, 30, 27, 28,
175 29, 30, 27, 28, 29, 30, 27, 28};
176
177static void taihu_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
178{
179 unsigned char int_line = int_lines[PCI_DEV(dev) & 31];
180
181 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
182}
183
184int pci_pre_init(struct pci_controller *hose)
185{
186 hose->fixup_irq = taihu_pci_fixup_irq;
187 return 1;
188}
189#endif /* CONFIG_PCI */
Ben Warren10efa022008-08-31 20:37:00 -0700190
191int board_eth_init(bd_t *bis)
192{
Stefan Roesecef0efa2009-02-11 09:29:33 +0100193 cpu_eth_init(bis);
Ben Warren10efa022008-08-31 20:37:00 -0700194 return pci_eth_init(bis);
195}