sh: First support code of SuperH.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/lib_sh/board.c b/lib_sh/board.c
new file mode 100644
index 0000000..c3f8462
--- /dev/null
+++ b/lib_sh/board.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2007
+ * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ *
+ * 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 <devices.h>
+#include <version.h>
+#include <net.h>
+#include <environment.h>
+
+extern void malloc_bin_reloc (void);
+extern int cpu_init(void);
+extern int board_init(void);
+extern int dram_init(void);
+extern int watchdog_init(void);
+extern int timer_init(void);
+
+const char version_string[] = U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
+
+unsigned long monitor_flash_len = CFG_MONITOR_LEN;
+
+static unsigned long mem_malloc_start;
+static unsigned long mem_malloc_end;
+static unsigned long mem_malloc_brk;
+
+static void mem_malloc_init (void)
+{
+
+ mem_malloc_start = (TEXT_BASE - CFG_GBL_DATA_SIZE - CFG_MALLOC_LEN);
+ mem_malloc_end = (mem_malloc_start + CFG_MALLOC_LEN - 16);
+ mem_malloc_brk = mem_malloc_start;
+ memset ((void *) mem_malloc_start, 0,
+ (mem_malloc_end - mem_malloc_start));
+}
+
+void *sbrk (ptrdiff_t increment)
+{
+ unsigned long old = mem_malloc_brk;
+ unsigned long new = old + increment;
+
+ if ((new < mem_malloc_start) ||
+ (new > mem_malloc_end)) {
+ return NULL;
+ }
+
+ mem_malloc_brk = new;
+ return (void *) old;
+}
+
+typedef int (init_fnc_t) (void);
+
+init_fnc_t *init_sequence[] =
+{
+ cpu_init, /* basic cpu dependent setup */
+ board_init, /* basic board dependent setup */
+ interrupt_init, /* set up exceptions */
+ env_init, /* event init */
+ serial_init, /* SCIF init */
+ watchdog_init,
+ console_init_f,
+ display_options,
+ checkcpu,
+ checkboard,
+ dram_init, /* SDRAM init */
+ NULL /* Terminate this list */
+};
+
+void sh_generic_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ bd_t *bd;
+ init_fnc_t **init_fnc_ptr;
+ char *s, *e;
+ int i;
+
+ memset (gd, 0, CFG_GBL_DATA_SIZE);
+
+ gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
+
+ gd->bd = (bd_t *) (gd + 1); /* At end of global data */
+ gd->baudrate = CONFIG_BAUDRATE;
+
+ gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
+
+ bd = gd->bd;
+ bd->bi_memstart = CFG_SDRAM_BASE;
+ bd->bi_memsize = CFG_SDRAM_SIZE;
+ bd->bi_flashstart = CFG_FLASH_BASE;
+#if defined(CFG_SRAM_BASE) && defined(CFG_SRAM_SIZE)
+ bd->bi_sramstart= CFG_SRAM_BASE;
+ bd->bi_sramsize = CFG_SRAM_SIZE;
+#endif
+ bd->bi_baudrate = CONFIG_BAUDRATE;
+
+ for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+ if ((*init_fnc_ptr) () != 0) {
+ hang();
+ }
+ }
+
+ timer_init();
+
+ /* flash_init need timer_init().(TMU) */
+ bd->bi_flashsize = flash_init();
+ printf("FLASH: %dMB\n", bd->bi_flashsize / (1024*1024));
+
+ mem_malloc_init();
+ malloc_bin_reloc();
+ env_relocate();
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+ bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
+ s = getenv ("ethaddr");
+ for (i = 0; i < 6; ++i) {
+ bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
+ if (s) s = (*e) ? e + 1 : e;
+ }
+#endif
+ devices_init();
+ jumptable_init();
+ console_init_r();
+ interrupt_init();
+#ifdef BOARD_LATE_INIT
+ board_late_init ();
+#endif
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+#if defined(CONFIG_NET_MULTI)
+ puts ("Net: ");
+#endif
+ eth_initialize(gd->bd);
+#endif
+ while (1) {
+ main_loop();
+ }
+}
+
+
+/***********************************************************************/
+
+void hang (void)
+{
+ puts ("Board ERROR \n");
+ for (;;);
+}