summaryrefslogtreecommitdiff
path: root/board/alaska/alaska.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/alaska/alaska.c')
-rw-r--r--board/alaska/alaska.c153
1 files changed, 153 insertions, 0 deletions
diff --git a/board/alaska/alaska.c b/board/alaska/alaska.c
new file mode 100644
index 0000000..93874b2
--- /dev/null
+++ b/board/alaska/alaska.c
@@ -0,0 +1,153 @@
+/*
+ * (C) Copyright 2004, Freescale Inc.
+ * TsiChung Liew, Tsi-Chung.Liew@freescale.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 <mpc8220.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+
+void setupBat (ulong size)
+{
+ ulong batu, batl;
+ int blocksize = 0;
+
+ /* Flash 0 */
+#if defined (CFG_AMD_BOOT)
+ batu = CFG_FLASH0_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+#else
+ batu = CFG_FLASH0_BASE | (BL_16M << 2) | BPP_RW | BPP_RX;
+#endif
+ batl = CFG_FLASH0_BASE | 0x22;
+ write_bat (IBAT0, batu, batl);
+ write_bat (DBAT0, batu, batl);
+
+ /* Flash 1 */
+#if defined (CFG_AMD_BOOT)
+ batu = CFG_FLASH1_BASE | (BL_16M << 2) | BPP_RW | BPP_RX;
+#else
+ batu = CFG_FLASH1_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+#endif
+ batl = CFG_FLASH1_BASE | 0x22;
+ write_bat (IBAT1, batu, batl);
+ write_bat (DBAT1, batu, batl);
+
+ /* CPLD */
+ batu = CFG_CPLD_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+ batl = CFG_CPLD_BASE | 0x22;
+ write_bat (IBAT2, 0, 0);
+ write_bat (DBAT2, batu, batl);
+
+ /* FPGA */
+ batu = CFG_FPGA_BASE | (BL_512K << 2) | BPP_RW | BPP_RX;
+ batl = CFG_FPGA_BASE | 0x22;
+ write_bat (IBAT3, 0, 0);
+ write_bat (DBAT3, batu, batl);
+
+ /* MBAR - Data only */
+ batu = CFG_MBAR | BPP_RW | BPP_RX;
+ batl = CFG_MBAR | 0x22;
+ mtspr (IBAT4L, 0);
+ mtspr (IBAT4U, 0);
+ mtspr (DBAT4L, batl);
+ mtspr (DBAT4U, batu);
+
+ /* MBAR - SRAM */
+ batu = CFG_SRAM_BASE | BPP_RW | BPP_RX;
+ batl = CFG_SRAM_BASE | 0x42;
+ mtspr (IBAT5L, batl);
+ mtspr (IBAT5U, batu);
+ mtspr (DBAT5L, batl);
+ mtspr (DBAT5U, batu);
+
+ if (size <= 0x800000) /* 8MB */
+ blocksize = BL_8M << 2;
+ else if (size <= 0x1000000) /* 16MB */
+ blocksize = BL_16M << 2;
+ else if (size <= 0x2000000) /* 32MB */
+ blocksize = BL_32M << 2;
+ else if (size <= 0x4000000) /* 64MB */
+ blocksize = BL_64M << 2;
+ else if (size <= 0x8000000) /* 128MB */
+ blocksize = BL_128M << 2;
+ else if (size <= 0x10000000) /* 256MB */
+ blocksize = BL_256M << 2;
+
+ /* Memory */
+ batu = CFG_SDRAM_BASE | blocksize | BPP_RW | BPP_RX;
+ batl = CFG_SDRAM_BASE | 0x42;
+ mtspr (IBAT6L, batl);
+ mtspr (IBAT6U, batu);
+ mtspr (DBAT6L, batl);
+ mtspr (DBAT6U, batu);
+
+ /* memory size is less than 256MB */
+ if (size <= 0x10000000) {
+ /* Nothing */
+ batu = 0;
+ batl = 0;
+ } else {
+ size -= 0x10000000;
+ if (size <= 0x800000) /* 8MB */
+ blocksize = BL_8M << 2;
+ else if (size <= 0x1000000) /* 16MB */
+ blocksize = BL_16M << 2;
+ else if (size <= 0x2000000) /* 32MB */
+ blocksize = BL_32M << 2;
+ else if (size <= 0x4000000) /* 64MB */
+ blocksize = BL_64M << 2;
+ else if (size <= 0x8000000) /* 128MB */
+ blocksize = BL_128M << 2;
+ else if (size <= 0x10000000) /* 256MB */
+ blocksize = BL_256M << 2;
+
+ batu = (CFG_SDRAM_BASE +
+ 0x10000000) | blocksize | BPP_RW | BPP_RX;
+ batl = (CFG_SDRAM_BASE + 0x10000000) | 0x42;
+ }
+
+ mtspr (IBAT7L, batl);
+ mtspr (IBAT7U, batu);
+ mtspr (DBAT7L, batl);
+ mtspr (DBAT7U, batu);
+}
+
+long int initdram (int board_type)
+{
+ ulong size;
+
+ size = dramSetup ();
+
+/* if iCache ad dCache is defined */
+#if (CONFIG_COMMANDS & CFG_CMD_CACHE)
+/* setupBat(size);*/
+#endif
+
+ return size;
+}
+
+int checkboard (void)
+{
+ puts ("Board: Alaska MPC8220 Evaluation Board\n");
+
+ return 0;
+}