* Add support for MIPS32 4Kc CPUs
* Add support for INCA-IP Board
diff --git a/lib_mips/Makefile b/lib_mips/Makefile
new file mode 100644
index 0000000..540383d
--- /dev/null
+++ b/lib_mips/Makefile
@@ -0,0 +1,44 @@
+#
+# (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 $(TOPDIR)/config.mk
+
+LIB = lib$(ARCH).a
+
+AOBJS =
+
+COBJS = board.o time.o mips_linux.o
+
+OBJS = $(AOBJS) $(COBJS)
+
+$(LIB): .depend $(OBJS)
+ $(AR) crv $@ $(OBJS)
+
+#########################################################################
+
+.depend: Makefile $(AOBJS:.o=.S) $(COBJS:.o=.c)
+ $(CC) -M $(CFLAGS) $(AOBJS:.o=.S) $(COBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
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 (;;);
+}
+
diff --git a/lib_mips/mips_linux.c b/lib_mips/mips_linux.c
new file mode 100644
index 0000000..e73d4d8
--- /dev/null
+++ b/lib_mips/mips_linux.c
@@ -0,0 +1,276 @@
+/*
+ * (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 <cmd_boot.h>
+#include <image.h>
+#include <zlib.h>
+#include <asm/byteorder.h>
+#include <asm/addrspace.h>
+
+#define LINUX_MAX_ENVS 256
+#define LINUX_MAX_ARGS 256
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+# include <status_led.h>
+# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
+#else
+# define SHOW_BOOT_PROGRESS(arg)
+#endif
+
+extern image_header_t header; /* from cmd_bootm.c */
+
+static int linux_argc;
+static char ** linux_argv;
+
+static char ** linux_env;
+static char * linux_env_p;
+static int linux_env_idx;
+
+static void linux_params_init (ulong start, char * commandline);
+static void linux_env_set (char * env_name, char * env_val);
+
+
+void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
+ ulong addr, ulong *len_ptr, int verify)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ ulong len = 0, checksum;
+ ulong initrd_start, initrd_end;
+ ulong data;
+ void (*theKernel)(int, char **, char **, int *);
+ image_header_t *hdr = &header;
+ char *commandline = getenv("bootargs");
+ char env_buf[12];
+
+ theKernel = (void (*)(int, char **, char **, int *))ntohl(hdr->ih_ep);
+
+ /*
+ * Check if there is an initrd image
+ */
+ if (argc >= 3) {
+ SHOW_BOOT_PROGRESS (9);
+
+ addr = simple_strtoul(argv[2], NULL, 16);
+
+ printf ("## Loading Ramdisk Image at %08lx ...\n", addr);
+
+ /* Copy header so we can blank CRC field for re-calculation */
+ memcpy (&header, (char *)addr, sizeof(image_header_t));
+
+ if (ntohl(hdr->ih_magic) != IH_MAGIC) {
+ printf ("Bad Magic Number\n");
+ SHOW_BOOT_PROGRESS (-10);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ data = (ulong)&header;
+ len = sizeof(image_header_t);
+
+ checksum = ntohl(hdr->ih_hcrc);
+ hdr->ih_hcrc = 0;
+
+ if (crc32 (0, (char *)data, len) != checksum) {
+ printf ("Bad Header Checksum\n");
+ SHOW_BOOT_PROGRESS (-11);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ SHOW_BOOT_PROGRESS (10);
+
+ print_image_hdr (hdr);
+
+ data = addr + sizeof(image_header_t);
+ len = ntohl(hdr->ih_size);
+
+ if (verify) {
+ ulong csum = 0;
+
+ printf (" Verifying Checksum ... ");
+ csum = crc32 (0, (char *)data, len);
+ if (csum != ntohl(hdr->ih_dcrc)) {
+ printf ("Bad Data CRC\n");
+ SHOW_BOOT_PROGRESS (-12);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+ printf ("OK\n");
+ }
+
+ SHOW_BOOT_PROGRESS (11);
+
+ if ((hdr->ih_os != IH_OS_LINUX) ||
+ (hdr->ih_arch != IH_CPU_MIPS) ||
+ (hdr->ih_type != IH_TYPE_RAMDISK) ) {
+ printf ("No Linux MIPS Ramdisk Image\n");
+ SHOW_BOOT_PROGRESS (-13);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ /*
+ * Now check if we have a multifile image
+ */
+ } else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
+ ulong tail = ntohl(len_ptr[0]) % 4;
+ int i;
+
+ SHOW_BOOT_PROGRESS (13);
+
+ /* skip kernel length and terminator */
+ data = (ulong)(&len_ptr[2]);
+ /* skip any additional image length fields */
+ for (i=1; len_ptr[i]; ++i)
+ data += 4;
+ /* add kernel length, and align */
+ data += ntohl(len_ptr[0]);
+ if (tail) {
+ data += 4 - tail;
+ }
+
+ len = ntohl(len_ptr[1]);
+
+ } else {
+ /*
+ * no initrd image
+ */
+ SHOW_BOOT_PROGRESS (14);
+
+ data = 0;
+ }
+
+#ifdef DEBUG
+ if (!data) {
+ printf ("No initrd\n");
+ }
+#endif
+
+ if (data) {
+ initrd_start = data;
+ initrd_end = initrd_start + len;
+ } else {
+ initrd_start = 0;
+ initrd_end = 0;
+ }
+
+ SHOW_BOOT_PROGRESS (15);
+
+#ifdef DEBUG
+ printf ("## Transferring control to Linux (at address %08lx) ...\n",
+ (ulong)theKernel);
+#endif
+
+ linux_params_init (PHYSADDR(gd->bd->bi_boot_params), commandline);
+
+ sprintf (env_buf, "%lu", gd->ram_size >> 20);
+ linux_env_set ("memsize", env_buf);
+
+ sprintf (env_buf, "0x%08X", (uint)PHYSADDR(initrd_start));
+ linux_env_set ("initrd_start", env_buf);
+
+ sprintf (env_buf, "0x%X", (uint)(initrd_end - initrd_start));
+ linux_env_set ("initrd_size", env_buf);
+
+ sprintf (env_buf, "0x%08X", (uint)(gd->bd->bi_flashstart));
+ linux_env_set ("flash_start", env_buf);
+
+ sprintf (env_buf, "0x%X", (uint)(gd->bd->bi_flashsize));
+ linux_env_set ("flash_size", env_buf);
+
+ /* we assume that the kernel is in place */
+ printf("\nStarting kernel ...\n\n");
+
+ theKernel(linux_argc, linux_argv, linux_env, 0);
+}
+
+static void linux_params_init (ulong start, char * line)
+{
+ char * next, * quote, * argp;
+
+ linux_argc = 1;
+ linux_argv = (char **) start;
+ linux_argv[0] = 0;
+ argp = (char *)(linux_argv + LINUX_MAX_ARGS);
+
+ next = line;
+
+ while (line && *line && linux_argc < LINUX_MAX_ARGS)
+ {
+ quote = strchr (line, '"');
+ next = strchr (line, ' ');
+
+ while (next != NULL && quote != NULL && quote < next)
+ {
+ /* we found a left quote before the next blank
+ * now we have to find the matching right quote
+ */
+ next = strchr (quote + 1, '"');
+ if (next != NULL)
+ {
+ quote = strchr (next + 1, '"');
+ next = strchr (next + 1, ' ');
+ }
+ }
+
+ if (next == NULL)
+ {
+ next = line + strlen (line);
+ }
+
+ linux_argv [linux_argc] = argp;
+ memcpy (argp, line, next - line);
+ argp [next - line] = 0;
+
+ argp += next - line + 1;
+ linux_argc ++;
+
+ if (*next) next ++;
+
+ line = next;
+ }
+
+ linux_env = (char **)(((ulong)argp + 15) & ~15);
+ linux_env [0] = 0;
+ linux_env_p = (char *)(linux_env + LINUX_MAX_ENVS);
+ linux_env_idx = 0;
+}
+
+static void linux_env_set (char * env_name, char * env_val)
+{
+ if (linux_env_idx < LINUX_MAX_ENVS - 1)
+ {
+ linux_env [linux_env_idx] = linux_env_p;
+
+ strcpy (linux_env_p, env_name);
+ linux_env_p += strlen (env_name);
+
+ strcpy (linux_env_p, "=");
+ linux_env_p += 1;
+
+ strcpy (linux_env_p, env_val);
+ linux_env_p += strlen (env_val);
+
+ linux_env_p ++;
+ linux_env [++ linux_env_idx] = 0;
+ }
+}
diff --git a/lib_mips/time.c b/lib_mips/time.c
new file mode 100644
index 0000000..9e6138d
--- /dev/null
+++ b/lib_mips/time.c
@@ -0,0 +1,103 @@
+/*
+ * (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>
+
+
+static inline void mips_compare_set(u32 v)
+{
+ asm volatile ("mtc0 %0, $11" : : "r" (v));
+}
+
+static inline void mips_count_set(u32 v)
+{
+ asm volatile ("mtc0 %0, $9" : : "r" (v));
+}
+
+
+static inline u32 mips_count_get(void)
+{
+ u32 count;
+
+ asm volatile ("mfc0 %0, $9" : "=r" (count) :);
+ return count;
+}
+
+/*
+ * timer without interrupts
+ */
+
+int timer_init(void)
+{
+ mips_compare_set(0);
+ mips_count_set(0);
+
+ return 0;
+}
+
+void reset_timer(void)
+{
+ mips_count_set(0);
+}
+
+ulong get_timer(ulong base)
+{
+ return mips_count_get() - base;
+}
+
+void set_timer(ulong t)
+{
+ mips_count_set(t);
+}
+
+void udelay (unsigned long usec)
+{
+ ulong tmo;
+ ulong start = get_timer(0);
+
+ tmo = usec * CFG_HZ / 1000;
+ tmo /= 1000;
+
+ while ((ulong)((mips_count_get() - start)) < tmo)
+ /*NOP*/;
+}
+
+/*
+ * This function is derived from PowerPC code (read timebase as long long).
+ * On MIPS it just returns the timer value.
+ */
+unsigned long long get_ticks(void)
+{
+ return mips_count_get();
+}
+
+/*
+ * This function is derived from PowerPC code (timebase clock frequency).
+ * On MIPS it returns the number of timer ticks per second.
+ */
+ulong get_tbclk(void)
+{
+ return CFG_HZ;
+}
+
+