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authorMatthias Kaehlcke <matthias@kaehlcke.net>2010-02-01 21:29:48 +0100
committerTom Rix <Tom.Rix@windriver.com>2010-02-12 12:31:54 -0600
commitcf3c142ee4be0f077f8b84593f1b24b35d14039e (patch)
tree7687c04cea8b29ec69a8ef2ebc64864d46a20ab1 /board/edb93xx/edb93xx.c
parentd798e27b14543762f9f5d0561a3430c7f9e2153b (diff)
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Add support for EDB93xx boards
Added support for the following EDB93xx boards: EDB9301 EDB9302 EDB9302A EDB9307 EDB9307A EDB93012 EDB9315 EDB9315A Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Diffstat (limited to 'board/edb93xx/edb93xx.c')
-rw-r--r--board/edb93xx/edb93xx.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/board/edb93xx/edb93xx.c b/board/edb93xx/edb93xx.c
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+++ b/board/edb93xx/edb93xx.c
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+/*
+ * Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
+ *
+ * (C) Copyright 2002 2003
+ * Network Audio Technologies, Inc. <www.netaudiotech.com>
+ * Adam Bezanson <bezanson@netaudiotech.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 <netdev.h>
+#include <asm/arch/ep93xx.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define MAX_BANK_SIZE 0x04000000 /* 64 MB */
+
+static ulong const bank_addr[CONFIG_NR_DRAM_BANKS] = {
+ PHYS_SDRAM_1,
+#ifdef PHYS_SDRAM_2
+ PHYS_SDRAM_2,
+#endif
+#ifdef PHYS_SDRAM_3
+ PHYS_SDRAM_3,
+#endif
+#ifdef PHYS_SDRAM_4
+ PHYS_SDRAM_4
+#endif
+};
+
+int board_init(void)
+{
+ struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE;
+
+ icache_enable();
+
+#ifdef USE_920T_MMU
+ dcache_enable();
+#endif
+
+ /*
+ * set UARTBAUD bit to drive UARTs with 14.7456MHz instead of
+ * 14.7456/2 MHz
+ */
+ uint32_t value = readl(&syscon->pwrcnt);
+ value |= SYSCON_PWRCNT_UART_BAUD;
+ writel(value, &syscon->pwrcnt);
+
+ /* Machine number, as defined in linux/arch/arm/tools/mach-types */
+ gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
+
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
+
+ /* We have a console */
+ gd->have_console = 1;
+
+ return 0;
+}
+
+int board_eth_init(bd_t *bd)
+{
+ return ep93xx_eth_initialize(0, MAC_BASE);
+}
+
+int dram_init(void)
+{
+ unsigned int *src, *dst;
+ int i;
+
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+ const ulong bank_size = get_ram_size((long *)bank_addr[i],
+ MAX_BANK_SIZE);
+ if (bank_size) {
+ gd->bd->bi_dram[i].start = bank_addr[i];
+ gd->bd->bi_dram[i].size = bank_size;
+ }
+ }
+
+ /* copy exception vectors */
+ src = (unsigned int *)_armboot_start;
+ dst = (unsigned int *)PHYS_SDRAM_1;
+ memcpy(dst, src, 16 * sizeof(unsigned int));
+
+ return 0;
+}