* Add support for MIPS32 4Kc CPUs
* Add support for INCA-IP Board
diff --git a/lib_mips/board.c b/lib_mips/board.c
new file mode 100644
index 0000000..81909d3
--- /dev/null
+++ b/lib_mips/board.c
@@ -0,0 +1,403 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 <devices.h>
+#include <syscall.h>
+#include <version.h>
+#include <net.h>
+#include <environment.h>
+
+#if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
+ (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
+ defined(CFG_ENV_IS_IN_NVRAM)
+#define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
+#else
+#define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
+#endif
+
+#undef DEBUG
+
+extern int timer_init(void);
+
+const char version_string[] =
+ U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
+
+static char *failed = "*** failed ***\n";
+
+/*
+ * Begin and End of memory area for malloc(), and current "brk"
+ */
+static ulong mem_malloc_start;
+static ulong mem_malloc_end;
+static ulong mem_malloc_brk;
+
+
+/*
+ * The Malloc area is immediately below the monitor copy in DRAM
+ */
+static void mem_malloc_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
+
+ mem_malloc_end = dest_addr;
+ mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
+ mem_malloc_brk = mem_malloc_start;
+
+ memset ((void *) mem_malloc_start,
+ 0,
+ mem_malloc_end - mem_malloc_start);
+}
+
+void *sbrk (ptrdiff_t increment)
+{
+ ulong old = mem_malloc_brk;
+ ulong new = old + increment;
+
+ if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
+ return (NULL);
+ }
+ mem_malloc_brk = new;
+ return ((void *) old);
+}
+
+
+static int init_func_ram (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_BOARD_TYPES
+ int board_type = gd->board_type;
+#else
+ int board_type = 0; /* use dummy arg */
+#endif
+ puts ("DRAM: ");
+
+ if ((gd->ram_size = initdram (board_type)) > 0) {
+ print_size (gd->ram_size, "\n");
+ return (0);
+ }
+ puts (failed);
+ return (1);
+}
+
+static int display_banner(void)
+{
+
+ printf ("\n\n%s\n\n", version_string);
+ return (0);
+}
+
+static void display_flash_config(ulong size)
+{
+ puts ("Flash: ");
+ print_size (size, "\n");
+}
+
+
+static int init_baudrate (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ uchar tmp[64]; /* long enough for environment variables */
+ int i = getenv_r ("baudrate", tmp, sizeof (tmp));
+
+ gd->baudrate = (i > 0)
+ ? (int) simple_strtoul (tmp, NULL, 10)
+ : CONFIG_BAUDRATE;
+
+ return (0);
+}
+
+
+/*
+ * Breath some life into the board...
+ *
+ * The first part of initialization is running from Flash memory;
+ * its main purpose is to initialize the RAM so that we
+ * can relocate the monitor code to RAM.
+ */
+
+/*
+ * All attempts to come up with a "common" initialization sequence
+ * that works for all boards and architectures failed: some of the
+ * requirements are just _too_ different. To get rid of the resulting
+ * mess of board dependend #ifdef'ed code we now make the whole
+ * initialization sequence configurable to the user.
+ *
+ * The requirements for any new initalization function is simple: it
+ * receives a pointer to the "global data" structure as it's only
+ * argument, and returns an integer return code, where 0 means
+ * "continue" and != 0 means "fatal error, hang the system".
+ */
+typedef int (init_fnc_t) (void);
+
+init_fnc_t *init_sequence[] = {
+ timer_init,
+ env_init, /* initialize environment */
+ init_baudrate, /* initialze baudrate settings */
+ serial_init, /* serial communications setup */
+ console_init_f,
+ display_banner, /* say that we are here */
+ init_func_ram,
+ NULL,
+};
+
+
+void board_init_f(ulong bootflag)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ gd_t gd_data, *id;
+ bd_t *bd;
+ init_fnc_t **init_fnc_ptr;
+ ulong addr, addr_sp, len = CFG_MONITOR_LEN;
+
+ /* Pointer is writable since we allocated a register for it.
+ */
+ gd = &gd_data;
+ memset (gd, 0, sizeof (gd_t));
+
+ for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+ if ((*init_fnc_ptr)() != 0) {
+ hang ();
+ }
+ }
+
+ /*
+ * Now that we have DRAM mapped and working, we can
+ * relocate the code and continue running from DRAM.
+ */
+ addr = CFG_SDRAM_BASE + gd->ram_size;
+
+ /* We can reserve some RAM "on top" here.
+ */
+
+ /* round down to next 4 kB limit.
+ */
+ addr &= ~(4096 - 1);
+#ifdef DEBUG
+ printf ("Top of RAM usable for U-Boot at: %08lx\n", addr);
+#endif
+
+ /* Reserve memory for U-Boot code, data & bss
+ * round down to next 4 kB limit
+ */
+ addr -= len;
+ addr &= ~(4096 - 1);
+
+#ifdef DEBUG
+ printf ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
+#endif
+
+ /* Reserve memory for malloc() arena.
+ */
+ addr_sp = addr - TOTAL_MALLOC_LEN;
+#ifdef DEBUG
+ printf ("Reserving %dk for malloc() at: %08lx\n",
+ TOTAL_MALLOC_LEN >> 10, addr_sp);
+#endif
+
+ /*
+ * (permanently) allocate a Board Info struct
+ * and a permanent copy of the "global" data
+ */
+ addr_sp -= sizeof(bd_t);
+ bd = (bd_t *)addr_sp;
+ gd->bd = bd;
+#ifdef DEBUG
+ printf ("Reserving %d Bytes for Board Info at: %08lx\n",
+ sizeof(bd_t), addr_sp);
+#endif
+ addr_sp -= sizeof(gd_t);
+ id = (gd_t *)addr_sp;
+#ifdef DEBUG
+ printf ("Reserving %d Bytes for Global Data at: %08lx\n",
+ sizeof (gd_t), addr_sp);
+#endif
+
+ /* Reserve memory for boot params.
+ */
+ addr_sp -= CFG_BOOTPARAMS_LEN;
+ bd->bi_boot_params = addr_sp;
+#ifdef DEBUG
+ printf ("Reserving %dk for malloc() at: %08lx\n",
+ CFG_BOOTPARAMS_LEN >> 10, addr_sp);
+#endif
+
+ /*
+ * Finally, we set up a new (bigger) stack.
+ *
+ * Leave some safety gap for SP, force alignment on 16 byte boundary
+ * Clear initial stack frame
+ */
+ addr_sp -= 16;
+ addr_sp &= ~0xF;
+ *((ulong *) addr_sp)-- = 0;
+ *((ulong *) addr_sp)-- = 0;
+#ifdef DEBUG
+ printf ("Stack Pointer at: %08lx\n", addr_sp);
+#endif
+ /*
+ * Save local variables to board info struct
+ */
+ bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
+ bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
+ bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
+
+ memcpy (id, gd, sizeof (gd_t));
+ relocate_code (addr_sp, id, addr);
+
+ /* NOTREACHED - relocate_code() does not return */
+}
+/************************************************************************
+ *
+ * This is the next part if the initialization sequence: we are now
+ * running from RAM and have a "normal" C environment, i. e. global
+ * data can be written, BSS has been cleared, the stack size in not
+ * that critical any more, etc.
+ *
+ ************************************************************************
+ */
+
+void board_init_r (gd_t *id, ulong dest_addr)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ cmd_tbl_t *cmdtp;
+ ulong size;
+ extern void malloc_bin_reloc (void);
+#ifndef CFG_ENV_IS_NOWHERE
+ extern char * env_name_spec;
+#endif
+ char *s, *e;
+ bd_t *bd;
+ int i;
+
+ gd = id;
+ gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
+
+#ifdef DEBUG
+ printf ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
+#endif
+
+ gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
+
+ /*
+ * We have to relocate the command table manually
+ */
+ for (cmdtp = &cmd_tbl[0]; cmdtp->name; cmdtp++) {
+ ulong addr;
+
+ addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
+#if 0
+ printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
+ cmdtp->name, (ulong) (cmdtp->cmd), addr);
+#endif
+ cmdtp->cmd =
+ (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
+
+ addr = (ulong)(cmdtp->name) + gd->reloc_off;
+ cmdtp->name = (char *)addr;
+
+ if (cmdtp->usage) {
+ addr = (ulong)(cmdtp->usage) + gd->reloc_off;
+ cmdtp->usage = (char *)addr;
+ }
+#ifdef CFG_LONGHELP
+ if (cmdtp->help) {
+ addr = (ulong)(cmdtp->help) + gd->reloc_off;
+ cmdtp->help = (char *)addr;
+ }
+#endif
+ }
+ /* there are some other pointer constants we must deal with */
+#ifndef CFG_ENV_IS_NOWHERE
+ env_name_spec += gd->reloc_off;
+#endif
+
+ /* configure available FLASH banks */
+ size = flash_init();
+ display_flash_config (size);
+
+ bd = gd->bd;
+ bd->bi_flashstart = CFG_FLASH_BASE;
+ bd->bi_flashsize = size;
+#if CFG_MONITOR_BASE == CFG_FLASH_BASE
+ bd->bi_flashoffset = CFG_MONITOR_LEN; /* reserved area for U-Boot */
+#else
+ bd->bi_flashoffset = 0;
+#endif
+
+ /* initialize malloc() area */
+ mem_malloc_init();
+ malloc_bin_reloc();
+
+ /* relocate environment function pointers etc. */
+ env_relocate();
+
+ /* board MAC address */
+ 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;
+ }
+
+ /* IP Address */
+ bd->bi_ip_addr = getenv_IPaddr("ipaddr");
+
+/** leave this here (after malloc(), environment and PCI are working) **/
+ /* Initialize devices */
+ devices_init ();
+
+ /* allocate syscalls table (console_init_r will fill it in */
+ syscall_tbl = (void **) malloc (NR_SYSCALLS * sizeof (void *));
+
+ /* Initialize the console (after the relocation and devices init) */
+ console_init_r ();
+/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
+ puts ("Net: ");
+ eth_initialize(gd->bd);
+#endif
+
+ /* main_loop() can return to retry autoboot, if so just run it again. */
+ for (;;) {
+ main_loop ();
+ }
+
+ /* NOTREACHED - no way out of command loop except booting */
+}
+
+void hang (void)
+{
+ puts ("### ERROR ### Please RESET the board ###\n");
+ for (;;);
+}
+