2 * (C) Copyright 2000-2005
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * (C) Copyright 2005-2007
6 * Beijing UD Technology Co., Ltd., taihusupport@amcc.com
8 * See file CREDITS for list of people who contributed to this
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.
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.
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,
28 #include <asm/processor.h>
34 extern int lcd_init(void);
39 int board_early_init_f(void)
43 mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
44 mtdcr(uicer, 0x00000000); /* disable all ints */
45 mtdcr(uiccr, 0x00000000);
46 mtdcr(uicpr, 0xFFFF7F00); /* set int polarities */
47 mtdcr(uictr, 0x00000000); /* set int trigger levels */
48 mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
49 mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority */
51 mtebc(PB3AP, CONFIG_SYS_EBC_PB3AP); /* memory bank 3 (CPLD_LCM) initialization */
52 mtebc(PB3CR, CONFIG_SYS_EBC_PB3CR);
55 * Configure CPC0_PCI to enable PerWE as output
56 * and enable the internal PCI arbiter
58 mtdcr(CPC0_PCI, CPC0_PCI_SPE | CPC0_PCI_HOST_CFG_EN | CPC0_PCI_ARBIT_EN);
64 * Check Board Identity:
68 char *s = getenv("serial#");
70 puts("Board: Taihu - AMCC PPC405EP Evaluation Board");
81 static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
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");
95 sw2_stat, 1, 1, do_sw_stat,
96 "show status of switch 2",
100 static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
109 led_no = simple_strtoul(argv[1], NULL, 16);
110 if (led_no != 1 && led_no != 2) {
115 if (strcmp(argv[2],"off") == 0x0) {
117 gpio_write_bit(30, 1);
119 gpio_write_bit(31, 1);
120 } else if (strcmp(argv[2],"on") == 0x0) {
122 gpio_write_bit(30, 0);
124 gpio_write_bit(31, 0);
134 led_ctl, 3, 1, do_led_ctl,
135 "make led 1 or 2 on or off",
136 "<led_no> <on/off> - make led <led_no> on/off,\n"
140 #define SPI_CS_GPIO0 0
141 #define SPI_SCLK_GPIO14 14
142 #define SPI_DIN_GPIO15 15
143 #define SPI_DOUT_GPIO16 16
145 void spi_scl(int bit)
147 gpio_write_bit(SPI_SCLK_GPIO14, bit);
150 void spi_sda(int bit)
152 gpio_write_bit(SPI_DOUT_GPIO16, bit);
155 unsigned char spi_read(void)
157 return (unsigned char)gpio_read_in_bit(SPI_DIN_GPIO15);
160 int spi_cs_is_valid(unsigned int bus, unsigned int cs)
162 return bus == 0 && cs == 0;
165 void spi_cs_activate(struct spi_slave *slave)
167 gpio_write_bit(SPI_CS_GPIO0, 1);
170 void spi_cs_deactivate(struct spi_slave *slave)
172 gpio_write_bit(SPI_CS_GPIO0, 0);
176 static unsigned char int_lines[32] = {
177 29, 30, 27, 28, 29, 30, 25, 27,
178 29, 30, 27, 28, 29, 30, 27, 28,
179 29, 30, 27, 28, 29, 30, 27, 28,
180 29, 30, 27, 28, 29, 30, 27, 28};
182 static void taihu_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
184 unsigned char int_line = int_lines[PCI_DEV(dev) & 31];
186 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
189 int pci_pre_init(struct pci_controller *hose)
191 hose->fixup_irq = taihu_pci_fixup_irq;
194 #endif /* CONFIG_PCI */
196 int board_eth_init(bd_t *bis)
199 return pci_eth_init(bis);