summaryrefslogtreecommitdiff
path: root/board/amcc/taihu/taihu.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/amcc/taihu/taihu.c')
-rw-r--r--board/amcc/taihu/taihu.c240
1 files changed, 240 insertions, 0 deletions
diff --git a/board/amcc/taihu/taihu.c b/board/amcc/taihu/taihu.c
new file mode 100644
index 0000000..ea83671
--- /dev/null
+++ b/board/amcc/taihu/taihu.c
@@ -0,0 +1,240 @@
+/*
+ * (C) Copyright 2000-2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2005-2007
+ * Beijing UD Technology Co., Ltd., taihusupport@amcc.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <spi.h>
+#include <asm/gpio.h>
+
+extern int lcd_init(void);
+
+/*
+ * board_early_init_f
+ */
+int board_early_init_f(void)
+{
+ lcd_init();
+
+ mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
+ mtdcr(uicer, 0x00000000); /* disable all ints */
+ mtdcr(uiccr, 0x00000000);
+ mtdcr(uicpr, 0xFFFF7F00); /* set int polarities */
+ mtdcr(uictr, 0x00000000); /* set int trigger levels */
+ mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
+ mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority */
+
+ mtebc(pb3ap, CFG_EBC_PB3AP); /* memory bank 3 (CPLD_LCM) initialization */
+ mtebc(pb3cr, CFG_EBC_PB3CR);
+
+ /*
+ * Configure CPC0_PCI to enable PerWE as output
+ * and enable the internal PCI arbiter
+ */
+ mtdcr(cpc0_pci, CPC0_PCI_SPE | CPC0_PCI_HOST_CFG_EN | CPC0_PCI_ARBIT_EN);
+
+ return 0;
+}
+
+/*
+ * Check Board Identity:
+ */
+int checkboard(void)
+{
+ char *s = getenv("serial#");
+
+ puts("Board: Taihu - AMCC PPC405EP Evaluation Board");
+
+ if (s != NULL) {
+ puts(", serial# ");
+ puts(s);
+ }
+ putc('\n');
+
+ return 0;
+}
+
+/*************************************************************************
+ * long int initdram
+ *
+ ************************************************************************/
+long int initdram(int board)
+{
+ return CFG_SDRAM_SIZE_PER_BANK * CFG_SDRAM_BANKS; /* 128Mbytes */
+}
+
+static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
+{
+ char stat;
+ int i;
+
+ stat = in_8((u8 *) CPLD_REG0_ADDR);
+ printf("SW2 status: ");
+ for (i=0; i<4; i++) /* 4-position */
+ printf("%d:%s ", i, stat & (0x08 >> i)?"on":"off");
+ printf("\n");
+ return 0;
+}
+
+U_BOOT_CMD (
+ sw2_stat, 1, 1, do_sw_stat,
+ "sw2_stat - show status of switch 2\n",
+ NULL
+ );
+
+static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
+{
+ int led_no;
+
+ if (argc != 3) {
+ printf("%s", cmd_tp->usage);
+ return -1;
+ }
+
+ led_no = simple_strtoul(argv[1], NULL, 16);
+ if (led_no != 1 && led_no != 2) {
+ printf("%s", cmd_tp->usage);
+ return -1;
+ }
+
+ if (strcmp(argv[2],"off") == 0x0) {
+ if (led_no == 1)
+ gpio_write_bit(30, 1);
+ else
+ gpio_write_bit(31, 1);
+ } else if (strcmp(argv[2],"on") == 0x0) {
+ if (led_no == 1)
+ gpio_write_bit(30, 0);
+ else
+ gpio_write_bit(31, 0);
+ } else {
+ printf("%s", cmd_tp->usage);
+ return -1;
+ }
+
+ return 0;
+}
+
+U_BOOT_CMD (
+ led_ctl, 3, 1, do_led_ctl,
+ "led_ctl - make led 1 or 2 on or off\n",
+ "<led_no> <on/off> - make led <led_no> on/off,\n"
+ "\tled_no is 1 or 2\t"
+ );
+
+#define SPI_CS_GPIO0 0
+#define SPI_SCLK_GPIO14 14
+#define SPI_DIN_GPIO15 15
+#define SPI_DOUT_GPIO16 16
+
+void spi_scl(int bit)
+{
+ gpio_write_bit(SPI_SCLK_GPIO14, bit);
+}
+
+void spi_sda(int bit)
+{
+ gpio_write_bit(SPI_DOUT_GPIO16, bit);
+}
+
+unsigned char spi_read(void)
+{
+ return (unsigned char)gpio_read_out_bit(SPI_DIN_GPIO15);
+}
+
+void taihu_spi_chipsel(int cs)
+{
+ gpio_write_bit(SPI_CS_GPIO0, cs);
+}
+
+spi_chipsel_type spi_chipsel[]= {
+ taihu_spi_chipsel
+};
+
+int spi_chipsel_cnt = sizeof(spi_chipsel) / sizeof(spi_chipsel[0]);
+
+#ifdef CONFIG_PCI
+static unsigned char int_lines[32] = {
+ 29, 30, 27, 28, 29, 30, 25, 27,
+ 29, 30, 27, 28, 29, 30, 27, 28,
+ 29, 30, 27, 28, 29, 30, 27, 28,
+ 29, 30, 27, 28, 29, 30, 27, 28};
+
+static void taihu_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
+{
+ unsigned char int_line = int_lines[PCI_DEV(dev) & 31];
+
+ pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
+}
+
+int pci_pre_init(struct pci_controller *hose)
+{
+ hose->fixup_irq = taihu_pci_fixup_irq;
+ return 1;
+}
+#endif /* CONFIG_PCI */
+
+#ifdef CFG_DRAM_TEST
+int testdram(void)
+{
+ unsigned long *mem = (unsigned long *)0;
+ const unsigned long kend = (1024 / sizeof(unsigned long));
+ unsigned long k, n;
+ unsigned long msr;
+ unsigned long total_kbytes = CFG_SDRAM_SIZE_PER_BANK * CFG_SDRAM_BANKS / 1024;
+
+ msr = mfmsr();
+ mtmsr(msr & ~(MSR_EE));
+
+ for (k = 0; k < total_kbytes ;
+ ++k, mem += (1024 / sizeof(unsigned long))) {
+ if ((k & 1023) == 0)
+ printf("%3d MB\r", k / 1024);
+
+ memset(mem, 0xaaaaaaaa, 1024);
+ for (n = 0; n < kend; ++n) {
+ if (mem[n] != 0xaaaaaaaa) {
+ printf("SDRAM test fails at: %08x\n",
+ (uint) & mem[n]);
+ return 1;
+ }
+ }
+
+ memset(mem, 0x55555555, 1024);
+ for (n = 0; n < kend; ++n) {
+ if (mem[n] != 0x55555555) {
+ printf("SDRAM test fails at: %08x\n",
+ (uint) & mem[n]);
+ return 1;
+ }
+ }
+ }
+ printf("SDRAM test passes\n");
+ mtmsr(msr);
+
+ return 0;
+}
+#endif /* CFG_DRAM_TEST */