--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <mpc824x.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <pci.h>
+#include <i2c.h>
+#include <netdev.h>
+
+int sysControlDisplay(int digit, uchar ascii_code);
+extern void Plx9030Init(void);
+extern void SPD67290Init(void);
+
+ /* We have to clear the initial data area here. Couldn't have done it
+ * earlier because DRAM had not been initialized.
+ */
+int board_early_init_f(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];
+
+ puts ("CPC45 ");
+/*
+ printf("Revision %d ", revision);
+*/
+ printf("Local Bus at %s MHz\n", strmhz(buf, busfreq));
+
+ return 0;
+}
+
+phys_size_t initdram (int board_type)
+{
+ int m, row, col, bank, i, ref;
+ unsigned long start, end;
+ uint32_t mccr1, mccr2;
+ uint32_t mear1 = 0, emear1 = 0, msar1 = 0, emsar1 = 0;
+ uint32_t mear2 = 0, emear2 = 0, msar2 = 0, emsar2 = 0;
+ uint8_t mber = 0;
+ unsigned int tmp;
+
+ i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+
+ if (i2c_reg_read (0x50, 2) != 0x04)
+ return 0; /* Memory type */
+
+ m = i2c_reg_read (0x50, 5); /* # of physical banks */
+ row = i2c_reg_read (0x50, 3); /* # of rows */
+ col = i2c_reg_read (0x50, 4); /* # of columns */
+ bank = i2c_reg_read (0x50, 17); /* # of logical banks */
+ ref = i2c_reg_read (0x50, 12); /* refresh rate / type */
+
+ CONFIG_READ_WORD(MCCR1, mccr1);
+ mccr1 &= 0xffff0000;
+
+ CONFIG_READ_WORD(MCCR2, mccr2);
+ mccr2 &= 0xffff0000;
+
+ start = CONFIG_SYS_SDRAM_BASE;
+ end = start + (1 << (col + row + 3) ) * bank - 1;
+
+ for (i = 0; i < m; i++) {
+ mccr1 |= ((row == 13)? 2 : (bank == 4)? 0 : 3) << i * 2;
+ if (i < 4) {
+ msar1 |= ((start >> 20) & 0xff) << i * 8;
+ emsar1 |= ((start >> 28) & 0xff) << i * 8;
+ mear1 |= ((end >> 20) & 0xff) << i * 8;
+ emear1 |= ((end >> 28) & 0xff) << i * 8;
+ } else {
+ msar2 |= ((start >> 20) & 0xff) << (i-4) * 8;
+ emsar2 |= ((start >> 28) & 0xff) << (i-4) * 8;
+ mear2 |= ((end >> 20) & 0xff) << (i-4) * 8;
+ emear2 |= ((end >> 28) & 0xff) << (i-4) * 8;
+ }
+ mber |= 1 << i;
+ start += (1 << (col + row + 3) ) * bank;
+ end += (1 << (col + row + 3) ) * bank;
+ }
+ for (; i < 8; i++) {
+ if (i < 4) {
+ msar1 |= 0xff << i * 8;
+ emsar1 |= 0x30 << i * 8;
+ mear1 |= 0xff << i * 8;
+ emear1 |= 0x30 << i * 8;
+ } else {
+ msar2 |= 0xff << (i-4) * 8;
+ emsar2 |= 0x30 << (i-4) * 8;
+ mear2 |= 0xff << (i-4) * 8;
+ emear2 |= 0x30 << (i-4) * 8;
+ }
+ }
+
+ switch(ref) {
+ case 0x00:
+ case 0x80:
+ tmp = get_bus_freq(0) / 1000000 * 15625 / 1000 - 22;
+ break;
+ case 0x01:
+ case 0x81:
+ tmp = get_bus_freq(0) / 1000000 * 3900 / 1000 - 22;
+ break;
+ case 0x02:
+ case 0x82:
+ tmp = get_bus_freq(0) / 1000000 * 7800 / 1000 - 22;
+ break;
+ case 0x03:
+ case 0x83:
+ tmp = get_bus_freq(0) / 1000000 * 31300 / 1000 - 22;
+ break;
+ case 0x04:
+ case 0x84:
+ tmp = get_bus_freq(0) / 1000000 * 62500 / 1000 - 22;
+ break;
+ case 0x05:
+ case 0x85:
+ tmp = get_bus_freq(0) / 1000000 * 125000 / 1000 - 22;
+ break;
+ default:
+ tmp = 0x512;
+ break;
+ }
+
+ CONFIG_WRITE_WORD(MCCR1, mccr1);
+ CONFIG_WRITE_WORD(MCCR2, tmp << MCCR2_REFINT_SHIFT);
+ CONFIG_WRITE_WORD(MSAR1, msar1);
+ CONFIG_WRITE_WORD(EMSAR1, emsar1);
+ CONFIG_WRITE_WORD(MEAR1, mear1);
+ CONFIG_WRITE_WORD(EMEAR1, emear1);
+ CONFIG_WRITE_WORD(MSAR2, msar2);
+ CONFIG_WRITE_WORD(EMSAR2, emsar2);
+ CONFIG_WRITE_WORD(MEAR2, mear2);
+ CONFIG_WRITE_WORD(EMEAR2, emear2);
+ CONFIG_WRITE_BYTE(MBER, mber);
+
+ return (1 << (col + row + 3) ) * bank * m;
+}
+
+
+/*
+ * Initialize PCI Devices, report devices found.
+ */
+
+static struct pci_config_table pci_cpc45_config_table[] = {
+#ifndef CONFIG_PCI_PNP
+ { 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 }},
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0D, PCI_ANY_ID,
+ pci_cfgfunc_config_device, { PCI_PLX9030_IOADDR,
+ PCI_PLX9030_MEMADDR,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0E, PCI_ANY_ID,
+ pci_cfgfunc_config_device, { PCMCIA_IO_BASE,
+ PCMCIA_IO_BASE,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_IO }},
+#endif /*CONFIG_PCI_PNP*/
+ { }
+};
+
+struct pci_controller hose = {
+#ifndef CONFIG_PCI_PNP
+ config_table: pci_cpc45_config_table,
+#endif
+};
+
+void pci_init_board(void)
+{
+ pci_mpc824x_init(&hose);
+
+ /* init PCI_to_LOCAL Bus BRIDGE */
+ Plx9030Init();
+
+ /* Clear Display */
+ DISP_CWORD = 0x0;
+
+ 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);
+}
+
+#if defined(CONFIG_CMD_PCMCIA)
+
+#ifdef CONFIG_SYS_PCMCIA_MEM_ADDR
+volatile unsigned char *pcmcia_mem = (unsigned char*)CONFIG_SYS_PCMCIA_MEM_ADDR;
+#endif
+
+int pcmcia_init(void)
+{
+ u_int rc;
+
+ debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
+
+ rc = i82365_init();
+
+ return rc;
+}
+
+#endif
+
+int board_eth_init(bd_t *bis)
+{
+ return pci_eth_init(bis);
+}
Code Review / kvmfornfv.git / blobdiff