O2DNT platform specific code.
diff --git a/board/o2dnt/o2dnt.c b/board/o2dnt/o2dnt.c
new file mode 100644
index 0000000..8c6f5db
--- /dev/null
+++ b/board/o2dnt/o2dnt.c
@@ -0,0 +1,182 @@
+/*
+ * (C) Copyright 2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.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 <mpc5xxx.h>
+#include <pci.h>
+
+#define SDRAM_MODE 0x00CD0000
+#define SDRAM_CONTROL 0x504F0000
+#define SDRAM_CONFIG1 0xD2322800
+#define SDRAM_CONFIG2 0x8AD70000
+
+static void sdram_start (int hi_addr)
+{
+ long hi_addr_bit = hi_addr ? 0x01000000 : 0;
+
+ /* unlock mode register */
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
+ /* precharge all banks */
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
+ /* precharge all banks */
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
+ /* auto refresh */
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
+ /* set mode register */
+ *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE;
+ __asm__ volatile ("sync");
+
+ /* normal operation */
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit;
+ __asm__ volatile ("sync");
+}
+
+/*
+ * ATTENTION: Although partially referenced initdram does NOT make real use
+ * use of CFG_SDRAM_BASE. The code does not work if CFG_SDRAM_BASE
+ * is something else than 0x00000000.
+ */
+long int initdram (int board_type)
+{
+ ulong dramsize = 0;
+ ulong dramsize2 = 0;
+ ulong test1, test2;
+
+ /* setup SDRAM chip selects */
+ *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e;/* 2G at 0x0 */
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x80000000;/* disabled */
+ __asm__ volatile ("sync");
+
+ /* setup config registers */
+ *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
+ *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
+ __asm__ volatile ("sync");
+
+ /* find RAM size using SDRAM CS0 only */
+ sdram_start(0);
+ test1 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
+ sdram_start(1);
+ test2 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
+ if (test1 > test2) {
+ sdram_start(0);
+ dramsize = test1;
+ } else {
+ dramsize = test2;
+ }
+
+ /* memory smaller than 1MB is impossible */
+ if (dramsize < (1 << 20)) {
+ dramsize = 0;
+ }
+
+ /* set SDRAM CS0 size according to the amount of RAM found */
+ if (dramsize > 0)
+ *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 + __builtin_ffs(dramsize >> 20) - 1;
+ else
+ *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
+
+ /* let SDRAM CS1 start right after CS0 */
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */
+
+ /* find RAM size using SDRAM CS1 only */
+ if (!dramsize)
+ sdram_start(0);
+
+ test2 = test1 = get_ram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
+
+ if (!dramsize) {
+ sdram_start(1);
+ test2 = get_ram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
+ }
+
+ if (test1 > test2) {
+ sdram_start(0);
+ dramsize2 = test1;
+ } else {
+ dramsize2 = test2;
+ }
+
+ /* memory smaller than 1MB is impossible */
+ if (dramsize2 < (1 << 20))
+ dramsize2 = 0;
+
+ /* set SDRAM CS1 size according to the amount of RAM found */
+ if (dramsize2 > 0) {
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize
+ | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1);
+ } else {
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
+ }
+
+ return dramsize + dramsize2;
+}
+
+int checkboard (void)
+{
+ puts ("Board: O2DNT\n");
+ return 0;
+}
+
+void flash_preinit(void)
+{
+ /*
+ * Now, when we are in RAM, enable flash write
+ * access for detection process.
+ * Note that CS_BOOT cannot be cleared when
+ * executing in flash.
+ */
+ *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
+}
+
+void flash_afterinit(ulong size)
+{
+ if (size == 0x800000) { /* adjust mapping */
+ *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START =
+ START_REG(CFG_BOOTCS_START | size);
+
+ *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP =
+ STOP_REG(CFG_BOOTCS_START | size, size);
+ }
+}
+
+#ifdef CONFIG_PCI
+static struct pci_controller hose;
+
+extern void pci_mpc5xxx_init(struct pci_controller *);
+
+void pci_init_board(void)
+{
+ pci_mpc5xxx_init(&hose);
+}
+#endif