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-rw-r--r--board/cpc45/cpc45.c173
1 files changed, 173 insertions, 0 deletions
diff --git a/board/cpc45/cpc45.c b/board/cpc45/cpc45.c
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+++ b/board/cpc45/cpc45.c
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+/*
+ * (C) Copyright 2001
+ * Rob Taylor, Flying Pig Systems. robt@flyingpig.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 <mpc824x.h>
+#include <asm/processor.h>
+#include <pci.h>
+
+int sysControlDisplay(int digit, uchar ascii_code);
+extern void Plx9030Init(void);
+
+ /* We have to clear the initial data area here. Couldn't have done it
+ * earlier because DRAM had not been initialized.
+ */
+int board_pre_init(void)
+{
+
+ /* enable DUAL UART Mode on CPC45 */
+ *(uchar*)DUART_DCR |= 0x1; /* set DCM bit */
+
+ return 0;
+}
+
+int checkboard(void)
+{
+/*
+ char revision = BOARD_REV;
+*/
+ ulong busfreq = get_bus_freq(0);
+ char buf[32];
+
+ printf("CPC45 ");
+/*
+ printf("Revision %d ", revision);
+*/
+ printf("Local Bus at %s MHz\n", strmhz(buf, busfreq));
+
+ return 0;
+}
+
+long int initdram(int board_type)
+{
+ int i, cnt;
+ volatile uchar * base = CFG_SDRAM_BASE;
+ volatile ulong * addr;
+ ulong save[32];
+ ulong val, ret = 0;
+
+ for (i=0, cnt=(CFG_MAX_RAM_SIZE / sizeof(long)) >> 1; cnt > 0; cnt >>= 1) {
+
+ addr = (volatile ulong *)base + cnt;
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ addr = (volatile ulong *)base;
+ save[i] = *addr;
+ *addr = 0;
+
+ if (*addr != 0) {
+ *addr = save[i];
+ goto Done;
+ }
+
+ for (cnt = 1; cnt <= CFG_MAX_RAM_SIZE / sizeof(long); cnt <<= 1) {
+ addr = (volatile ulong *)base + cnt;
+ val = *addr;
+ *addr = save[--i];
+ if (val != ~cnt) {
+ ulong new_bank0_end = cnt * sizeof(long) - 1;
+ ulong mear1 = mpc824x_mpc107_getreg(MEAR1);
+ ulong emear1 = mpc824x_mpc107_getreg(EMEAR1);
+ mear1 = (mear1 & 0xFFFFFF00) |
+ ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT);
+ emear1 = (emear1 & 0xFFFFFF00) |
+ ((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT);
+ mpc824x_mpc107_setreg(MEAR1, mear1);
+ mpc824x_mpc107_setreg(EMEAR1, emear1);
+
+ ret = cnt * sizeof(long);
+ goto Done;
+ }
+ }
+
+ ret = CFG_MAX_RAM_SIZE;
+Done:
+ return ret;
+}
+
+/*
+ * Initialize PCI Devices, report devices found.
+ */
+#ifndef CONFIG_PCI_PNP
+
+static struct pci_config_table pci_sandpoint_config_table[] = {
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID,
+ pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
+ PCI_ENET0_MEMADDR,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
+ { }
+};
+#endif
+
+
+struct pci_controller hose = {
+#ifndef CONFIG_PCI_PNP
+ config_table: pci_sandpoint_config_table,
+#endif
+};
+
+void pci_init_board(void)
+{
+ pci_mpc824x_init(&hose);
+
+ /* init PCI_to_LOCAL Bus BRIDGE */
+ Plx9030Init();
+
+ sysControlDisplay(0,' ');
+ sysControlDisplay(1,'C');
+ sysControlDisplay(2,'P');
+ sysControlDisplay(3,'C');
+ sysControlDisplay(4,' ');
+ sysControlDisplay(5,'4');
+ sysControlDisplay(6,'5');
+ sysControlDisplay(7,' ');
+
+}
+
+/**************************************************************************
+*
+* sysControlDisplay - controls one of the Alphanum. Display digits.
+*
+* This routine will write an ASCII character to the display digit requested.
+*
+* SEE ALSO:
+*
+* RETURNS: NA
+*/
+
+int sysControlDisplay
+ (
+ int digit, /* number of digit 0..7 */
+ uchar ascii_code /* ASCII code */
+ )
+{
+ if ((digit < 0) || (digit > 7))
+ return (-1);
+
+ *((volatile uchar*)(DISP_CHR_RAM + digit)) = ascii_code;
+
+ return (0);
+}
+