Initial revision
diff --git a/lib_arm/board.c b/lib_arm/board.c
new file mode 100644
index 0000000..e58529f
--- /dev/null
+++ b/lib_arm/board.c
@@ -0,0 +1,382 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.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 <devices.h>
+#include <version.h>
+#include <net.h>
+
+
+const char version_string[] =
+ U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
+
+#ifdef CONFIG_DRIVER_CS8900
+extern void cs8900_get_enetaddr (uchar * addr);
+#endif
+
+/*
+ * Begin and End of memory area for malloc(), and current "brk"
+ */
+static ulong mem_malloc_start = 0;
+static ulong mem_malloc_end = 0;
+static ulong mem_malloc_brk = 0;
+
+static void mem_malloc_init (ulong dest_addr)
+{
+ mem_malloc_start = dest_addr;
+ mem_malloc_end = dest_addr + CONFIG_MALLOC_SIZE;
+ 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);
+}
+
+/************************************************************************
+ * Init Utilities *
+ ************************************************************************
+ * Some of this code should be moved into the core functions,
+ * or dropped completely,
+ * but let's get it working (again) first...
+ */
+
+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);
+}
+
+static int display_banner (void)
+{
+
+ printf ("\n\n%s\n\n", version_string);
+ printf ("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
+ _armboot_start, _armboot_end_data, _armboot_end);
+#ifdef CONFIG_MODEM_SUPPORT
+ puts ("Modem Support enabled\n");
+#endif
+#ifdef CONFIG_USE_IRQ
+ printf ("IRQ Stack: %08lx\n", IRQ_STACK_START);
+ printf ("FIQ Stack: %08lx\n", FIQ_STACK_START);
+#endif
+ return (0);
+}
+
+/*
+ * WARNING: this code looks "cleaner" than the PowerPC version, but
+ * has the disadvantage that you either get nothing, or everything.
+ * On PowerPC, you might see "DRAM: " before the system hangs - which
+ * gives a simple yet clear indication which part of the
+ * initialization if failing.
+ */
+static int display_dram_config (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+ 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 (ulong size)
+{
+ puts ("Flash: ");
+ print_size (size, "\n");
+}
+
+
+
+/*
+ * Breath some life into the board...
+ *
+ * Initialize an SMC for serial comms, and carry out some hardware
+ * tests.
+ *
+ * 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[] = {
+ cpu_init, /* basic cpu dependent setup */
+ board_init, /* basic board dependent setup */
+ interrupt_init, /* set up exceptions */
+ env_init, /* initialize environment */
+ init_baudrate, /* initialze baudrate settings */
+ serial_init, /* serial communications setup */
+ display_banner,
+ dram_init, /* configure available RAM banks */
+ display_dram_config,
+
+ NULL,
+};
+
+void start_armboot (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ ulong size;
+ gd_t gd_data;
+ bd_t bd_data;
+ init_fnc_t **init_fnc_ptr;
+#ifdef CONFIG_VFD
+ unsigned long addr;
+#endif
+
+ /* Pointer is writable since we allocated a register for it */
+ gd = &gd_data;
+ memset (gd, 0, sizeof (gd_t));
+ gd->bd = &bd_data;
+ memset (gd->bd, 0, sizeof (bd_t));
+
+ for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+ if ((*init_fnc_ptr)() != 0) {
+ hang ();
+ }
+ }
+
+ /* configure available FLASH banks */
+ size = flash_init ();
+ display_flash_config (size);
+
+#ifdef CONFIG_VFD
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#endif
+ /*
+ * reserve memory for VFD display (always full pages)
+ */
+ /* armboot_real_end is defined in the board-specific linker script */
+ addr = (_armboot_real_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
+ size = vfd_setmem (addr);
+ gd->fb_base = addr;
+ /* round to the next page boundary */
+ addr += size;
+ addr = (addr + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
+ mem_malloc_init (addr);
+#else
+ /* armboot_real_end is defined in the board-specific linker script */
+ mem_malloc_init (_armboot_real_end);
+#endif /* CONFIG_VFD */
+
+#ifdef CONFIG_VFD
+ /* must do this after the framebuffer is allocated */
+ drv_vfd_init();
+#endif
+ /* initialize environment */
+ env_relocate ();
+
+ /* IP Address */
+ bd_data.bi_ip_addr = getenv_IPaddr ("ipaddr");
+
+ /* MAC Address */
+ {
+ int i;
+ ulong reg;
+ char *s, *e;
+ uchar tmp[64];
+
+ i = getenv_r ("ethaddr", tmp, sizeof (tmp));
+ s = (i > 0) ? tmp : NULL;
+
+ for (reg = 0; reg < 6; ++reg) {
+ bd_data.bi_enetaddr[reg] = s ? simple_strtoul (s, &e, 16) : 0;
+ if (s)
+ s = (*e) ? e + 1 : e;
+ }
+ }
+
+#if defined(CONFIG_MISC_INIT_R)
+ /* miscellaneous platform dependent initialisations */
+ misc_init_r ();
+#endif
+
+ /* enable exceptions */
+ enable_interrupts ();
+
+#ifdef CONFIG_DRIVER_CS8900
+ if (!getenv ("ethaddr")) {
+ cs8900_get_enetaddr (gd->bd->bi_enetaddr);
+ }
+#endif
+
+#ifdef BOARD_POST_INIT
+ board_post_init ();
+#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 (;;);
+}
+
+#ifdef CONFIG_MODEM_SUPPORT
+/* called from main loop (common/main.c) */
+extern void dbg(const char *fmt, ...);
+int mdm_init (void)
+{
+ char env_str[16];
+ char *init_str;
+ int i;
+ extern char console_buffer[];
+ static inline void mdm_readline(char *buf, int bufsiz);
+ extern void enable_putc(void);
+ extern int hwflow_onoff(int);
+
+ enable_putc(); /* enable serial_putc() */
+
+#ifdef CONFIG_HWFLOW
+ init_str = getenv("mdm_flow_control");
+ if (init_str && (strcmp(init_str, "rts/cts") == 0))
+ hwflow_onoff (1);
+ else
+ hwflow_onoff(-1);
+#endif
+
+ for (i = 1;;i++) {
+ sprintf(env_str, "mdm_init%d", i);
+ if ((init_str = getenv(env_str)) != NULL) {
+ serial_puts(init_str);
+ serial_puts("\n");
+ for(;;) {
+ mdm_readline(console_buffer, CFG_CBSIZE);
+ dbg("ini%d: [%s]", i, console_buffer);
+
+ if ((strcmp(console_buffer, "OK") == 0) ||
+ (strcmp(console_buffer, "ERROR") == 0)) {
+ dbg("ini%d: cmd done", i);
+ break;
+ } else /* in case we are originating call ... */
+ if (strncmp(console_buffer, "CONNECT", 7) == 0) {
+ dbg("ini%d: connect", i);
+ return 0;
+ }
+ }
+ } else
+ break; /* no init string - stop modem init */
+
+ udelay(100000);
+ }
+
+ udelay(100000);
+
+ /* final stage - wait for connect */
+ for(;i > 1;) { /* if 'i' > 1 - wait for connection
+ message from modem */
+ mdm_readline(console_buffer, CFG_CBSIZE);
+ dbg("ini_f: [%s]", console_buffer);
+ if (strncmp(console_buffer, "CONNECT", 7) == 0) {
+ dbg("ini_f: connected");
+ return 0;
+ }
+ }
+
+ return 0;
+}
+
+/* 'inline' - We have to do it fast */
+static inline void mdm_readline(char *buf, int bufsiz)
+{
+ char c;
+ char *p;
+ int n;
+
+ n = 0;
+ p = buf;
+ for(;;) {
+ c = serial_getc();
+
+ /* dbg("(%c)", c); */
+
+ switch(c) {
+ case '\r':
+ break;
+ case '\n':
+ *p = '\0';
+ return;
+
+ default:
+ if(n++ > bufsiz) {
+ *p = '\0';
+ return; /* sanity check */
+ }
+ *p = c;
+ p++;
+ break;
+ }
+ }
+}
+#endif /* CONFIG_MODEM_SUPPORT */
