Patch by TsiChung Liew, 23 Sep 2004:

- add support for MPC8220 CPU
- Add support for Alaska and Yukon boards

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;
+}