1 files changed, 360 insertions, 0 deletions
diff --git a/arch/avr32/lib/board.c b/arch/avr32/lib/board.c
new file mode 100644
index 0000000..917ed6c
--- /dev/null
+++ b/arch/avr32/lib/board.c
@@ -0,0 +1,360 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * 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 <command.h>
+#include <malloc.h>
+#include <stdio_dev.h>
+#include <timestamp.h>
+#include <version.h>
+#include <net.h>
+
+#ifdef CONFIG_BITBANGMII
+#include <miiphy.h>
+#endif
+
+#include <asm/initcalls.h>
+#include <asm/sections.h>
+
+#ifndef CONFIG_IDENT_STRING
+#define CONFIG_IDENT_STRING ""
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+const char version_string[] =
+	U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME") " CONFIG_IDENT_STRING;
+
+unsigned long monitor_flash_len;
+
+/* Weak aliases for optional board functions */
+static int __do_nothing(void)
+{
+	return 0;
+}
+int board_postclk_init(void) __attribute__((weak, alias("__do_nothing")));
+int board_early_init_r(void) __attribute__((weak, alias("__do_nothing")));
+
+#ifdef CONFIG_SYS_DMA_ALLOC_LEN
+#include <asm/arch/cacheflush.h>
+#include <asm/io.h>
+
+static unsigned long dma_alloc_start;
+static unsigned long dma_alloc_end;
+static unsigned long dma_alloc_brk;
+
+static void dma_alloc_init(void)
+{
+	unsigned long monitor_addr;
+
+	monitor_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
+	dma_alloc_end = monitor_addr - CONFIG_SYS_MALLOC_LEN;
+	dma_alloc_start = dma_alloc_end - CONFIG_SYS_DMA_ALLOC_LEN;
+	dma_alloc_brk = dma_alloc_start;
+
+	printf("DMA: Using memory from 0x%08lx to 0x%08lx\n",
+	       dma_alloc_start, dma_alloc_end);
+
+	dcache_invalidate_range(cached(dma_alloc_start),
+				dma_alloc_end - dma_alloc_start);
+}
+
+void *dma_alloc_coherent(size_t len, unsigned long *handle)
+{
+	unsigned long paddr = dma_alloc_brk;
+
+	if (dma_alloc_brk + len > dma_alloc_end)
+		return NULL;
+
+	dma_alloc_brk = ((paddr + len + CONFIG_SYS_DCACHE_LINESZ - 1)
+			 & ~(CONFIG_SYS_DCACHE_LINESZ - 1));
+
+	*handle = paddr;
+	return uncached(paddr);
+}
+#else
+static inline void dma_alloc_init(void)
+{
+
+}
+#endif
+
+static int init_baudrate(void)
+{
+	char tmp[64];
+	int i;
+
+	i = getenv_r("baudrate", tmp, sizeof(tmp));
+	if (i > 0) {
+		gd->baudrate = simple_strtoul(tmp, NULL, 10);
+	} else {
+		gd->baudrate = CONFIG_BAUDRATE;
+	}
+	return 0;
+}
+
+
+static int display_banner (void)
+{
+	printf ("\n\n%s\n\n", version_string);
+	printf ("U-Boot code: %p -> %p  data: %p -> %p\n",
+		_text, _etext, _data, _end);
+	return 0;
+}
+
+void hang(void)
+{
+	for (;;) ;
+}
+
+static int display_dram_config (void)
+{
+	int i;
+
+	puts ("DRAM Configuration:\n");
+
+	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+		printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
+		print_size (gd->bd->bi_dram[i].size, "\n");
+	}
+
+	return 0;
+}
+
+static void display_flash_config (void)
+{
+	puts ("Flash: ");
+	print_size(gd->bd->bi_flashsize, " ");
+	printf("at address 0x%08lx\n", gd->bd->bi_flashstart);
+}
+
+void board_init_f(ulong board_type)
+{
+	gd_t gd_data;
+	gd_t *new_gd;
+	bd_t *bd;
+	unsigned long *new_sp;
+	unsigned long monitor_len;
+	unsigned long monitor_addr;
+	unsigned long addr;
+	long sdram_size;
+
+	/* Initialize the global data pointer */
+	memset(&gd_data, 0, sizeof(gd_data));
+	gd = &gd_data;
+
+	/* Perform initialization sequence */
+	board_early_init_f();
+	cpu_init();
+	board_postclk_init();
+	env_init();
+	init_baudrate();
+	serial_init();
+	console_init_f();
+	display_banner();
+	sdram_size = initdram(board_type);
+
+	/* If we have no SDRAM, we can't go on */
+	if (sdram_size <= 0)
+		panic("No working SDRAM available\n");
+
+	/*
+	 * Now that we have DRAM mapped and working, we can
+	 * relocate the code and continue running from DRAM.
+	 *
+	 * Reserve memory at end of RAM for (top down in that order):
+	 *  - u-boot image
+	 *  - heap for malloc()
+	 *  - board info struct
+	 *  - global data struct
+	 *  - stack
+	 */
+	addr = CONFIG_SYS_SDRAM_BASE + sdram_size;
+	monitor_len = _end - _text;
+
+	/*
+	 * Reserve memory for u-boot code, data and bss.
+	 * Round down to next 4 kB limit.
+	 */
+	addr -= monitor_len;
+	addr &= ~(4096UL - 1);
+	monitor_addr = addr;
+
+	/* Reserve memory for malloc() */
+	addr -= CONFIG_SYS_MALLOC_LEN;
+
+#ifdef CONFIG_SYS_DMA_ALLOC_LEN
+	/* Reserve DMA memory (must be cache aligned) */
+	addr &= ~(CONFIG_SYS_DCACHE_LINESZ - 1);
+	addr -= CONFIG_SYS_DMA_ALLOC_LEN;
+#endif
+
+#ifdef CONFIG_LCD
+#ifdef CONFIG_FB_ADDR
+	printf("LCD: Frame buffer allocated at preset 0x%08x\n",
+	       CONFIG_FB_ADDR);
+	gd->fb_base = (void *)CONFIG_FB_ADDR;
+#else
+	addr = lcd_setmem(addr);
+	printf("LCD: Frame buffer allocated at 0x%08lx\n", addr);
+	gd->fb_base = (void *)addr;
+#endif /* CONFIG_FB_ADDR */
+#endif /* CONFIG_LCD */
+
+	/* Allocate a Board Info struct on a word boundary */
+	addr -= sizeof(bd_t);
+	addr &= ~3UL;
+	gd->bd = bd = (bd_t *)addr;
+
+	/* Allocate a new global data copy on a 8-byte boundary. */
+	addr -= sizeof(gd_t);
+	addr &= ~7UL;
+	new_gd = (gd_t *)addr;
+
+	/* And finally, a new, bigger stack. */
+	new_sp = (unsigned long *)addr;
+	gd->stack_end = addr;
+	*(--new_sp) = 0;
+	*(--new_sp) = 0;
+
+	/*
+	 * Initialize the board information struct with the
+	 * information we have.
+	 */
+	bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+	bd->bi_dram[0].size = sdram_size;
+	bd->bi_baudrate = gd->baudrate;
+
+	memcpy(new_gd, gd, sizeof(gd_t));
+
+	relocate_code((unsigned long)new_sp, new_gd, monitor_addr);
+}
+
+void board_init_r(gd_t *new_gd, ulong dest_addr)
+{
+	extern void malloc_bin_reloc (void);
+#ifndef CONFIG_ENV_IS_NOWHERE
+	extern char * env_name_spec;
+#endif
+	char *s;
+	cmd_tbl_t *cmdtp;
+	bd_t *bd;
+
+	gd = new_gd;
+	bd = gd->bd;
+
+	gd->flags |= GD_FLG_RELOC;
+	gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
+
+	board_early_init_r();
+
+	monitor_flash_len = _edata - _text;
+
+	/*
+	 * We have to relocate the command table manually
+	 */
+	for (cmdtp = &__u_boot_cmd_start;
+	     cmdtp !=  &__u_boot_cmd_end; cmdtp++) {
+		unsigned long addr;
+
+		addr = (unsigned long)cmdtp->cmd + gd->reloc_off;
+		cmdtp->cmd = (typeof(cmdtp->cmd))addr;
+
+		addr = (unsigned long)cmdtp->name + gd->reloc_off;
+		cmdtp->name = (typeof(cmdtp->name))addr;
+
+		if (cmdtp->usage) {
+			addr = (unsigned long)cmdtp->usage + gd->reloc_off;
+			cmdtp->usage = (typeof(cmdtp->usage))addr;
+		}
+#ifdef CONFIG_SYS_LONGHELP
+		if (cmdtp->help) {
+			addr = (unsigned long)cmdtp->help + gd->reloc_off;
+			cmdtp->help = (typeof(cmdtp->help))addr;
+		}
+#endif
+	}
+
+	/* there are some other pointer constants we must deal with */
+#ifndef CONFIG_ENV_IS_NOWHERE
+	env_name_spec += gd->reloc_off;
+#endif
+
+	timer_init();
+
+	/* The malloc area is right below the monitor image in RAM */
+	mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
+			CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN);
+	malloc_bin_reloc();
+	dma_alloc_init();
+
+	enable_interrupts();
+
+	bd->bi_flashstart = 0;
+	bd->bi_flashsize = 0;
+	bd->bi_flashoffset = 0;
+
+#ifndef CONFIG_SYS_NO_FLASH
+	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
+	bd->bi_flashsize = flash_init();
+	bd->bi_flashoffset = (unsigned long)_edata - (unsigned long)_text;
+
+	if (bd->bi_flashsize)
+		display_flash_config();
+#endif
+
+	if (bd->bi_dram[0].size)
+		display_dram_config();
+
+	gd->bd->bi_boot_params = malloc(CONFIG_SYS_BOOTPARAMS_LEN);
+	if (!gd->bd->bi_boot_params)
+		puts("WARNING: Cannot allocate space for boot parameters\n");
+
+	/* initialize environment */
+	env_relocate();
+
+	bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
+
+	stdio_init();
+	jumptable_init();
+	console_init_r();
+
+	s = getenv("loadaddr");
+	if (s)
+		load_addr = simple_strtoul(s, NULL, 16);
+
+#ifdef CONFIG_BITBANGMII
+	bb_miiphy_init();
+#endif
+#if defined(CONFIG_CMD_NET)
+	s = getenv("bootfile");
+	if (s)
+		copy_filename(BootFile, s, sizeof(BootFile));
+#if defined(CONFIG_NET_MULTI)
+	puts("Net:   ");
+#endif
+	eth_initialize(gd->bd);
+#endif
+
+	for (;;) {
+		main_loop();
+	}
+}