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authorPeter Tyser <ptyser@xes-inc.com>2010-04-12 22:28:04 -0500
committerWolfgang Denk <wd@denx.de>2010-04-13 09:13:03 +0200
commitea0364f1bbfed1e3ea711147420875cf338fe77a (patch)
tree15c051bc4d2e94c1661c73e1b87c22c7beda7c24 /arch/mips/lib/board.c
parent89f39e177e7b0152aa1d3152baa25d986e36cdcf (diff)
downloadu-boot-linaro-stable-ea0364f1bbfed1e3ea711147420875cf338fe77a.tar.gz
Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk This change is intended to clean up the top-level directory structure and more closely mimic Linux's directory organization. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/mips/lib/board.c')
-rw-r--r--arch/mips/lib/board.c436
1 files changed, 436 insertions, 0 deletions
diff --git a/arch/mips/lib/board.c b/arch/mips/lib/board.c
new file mode 100644
index 000000000..b2d113e87
--- /dev/null
+++ b/arch/mips/lib/board.c
@@ -0,0 +1,436 @@
+/*
+ * (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 <stdio_dev.h>
+#include <timestamp.h>
+#include <version.h>
+#include <net.h>
+#include <environment.h>
+#include <nand.h>
+#include <onenand_uboot.h>
+#include <spi.h>
+
+#ifdef CONFIG_BITBANGMII
+#include <miiphy.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
+ (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
+ defined(CONFIG_ENV_IS_IN_NVRAM)
+#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
+#else
+#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
+#endif
+
+#undef DEBUG
+
+extern int timer_init(void);
+
+extern int incaip_set_cpuclk(void);
+
+extern ulong uboot_end_data;
+extern ulong uboot_end;
+
+ulong monitor_flash_len;
+
+const char version_string[] =
+ U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")";
+
+static char *failed = "*** failed ***\n";
+
+/*
+ * mips_io_port_base is the begin of the address space to which x86 style
+ * I/O ports are mapped.
+ */
+unsigned long mips_io_port_base = -1;
+
+int __board_early_init_f(void)
+{
+ /*
+ * Nothing to do in this dummy implementation
+ */
+ return 0;
+}
+int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f")));
+
+
+static int init_func_ram (void)
+{
+#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);
+}
+
+#ifndef CONFIG_SYS_NO_FLASH
+static void display_flash_config(ulong size)
+{
+ puts ("Flash: ");
+ print_size (size, "\n");
+}
+#endif
+
+static int init_baudrate (void)
+{
+ char 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[] = {
+ board_early_init_f,
+ timer_init,
+ env_init, /* initialize environment */
+#ifdef CONFIG_INCA_IP
+ incaip_set_cpuclk, /* set cpu clock according to environment variable */
+#endif
+ init_baudrate, /* initialze baudrate settings */
+ serial_init, /* serial communications setup */
+ console_init_f,
+ display_banner, /* say that we are here */
+ checkboard,
+ init_func_ram,
+ NULL,
+};
+
+
+void board_init_f(ulong bootflag)
+{
+ gd_t gd_data, *id;
+ bd_t *bd;
+ init_fnc_t **init_fnc_ptr;
+ ulong addr, addr_sp, len = (ulong)&uboot_end - CONFIG_SYS_MONITOR_BASE;
+ ulong *s;
+#ifdef CONFIG_PURPLE
+ void copy_code (ulong);
+#endif
+
+ /* Pointer is writable since we allocated a register for it.
+ */
+ gd = &gd_data;
+ /* compiler optimization barrier needed for GCC >= 3.4 */
+ __asm__ __volatile__("": : :"memory");
+
+ memset ((void *)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 = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
+
+ /* We can reserve some RAM "on top" here.
+ */
+
+ /* round down to next 4 kB limit.
+ */
+ addr &= ~(4096 - 1);
+ debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
+
+ /* Reserve memory for U-Boot code, data & bss
+ * round down to next 16 kB limit
+ */
+ addr -= len;
+ addr &= ~(16 * 1024 - 1);
+
+ debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
+
+ /* Reserve memory for malloc() arena.
+ */
+ addr_sp = addr - TOTAL_MALLOC_LEN;
+ debug ("Reserving %dk for malloc() at: %08lx\n",
+ TOTAL_MALLOC_LEN >> 10, addr_sp);
+
+ /*
+ * (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;
+ debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
+ sizeof(bd_t), addr_sp);
+
+ addr_sp -= sizeof(gd_t);
+ id = (gd_t *)addr_sp;
+ debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
+ sizeof (gd_t), addr_sp);
+
+ /* Reserve memory for boot params.
+ */
+ addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
+ bd->bi_boot_params = addr_sp;
+ debug ("Reserving %dk for boot params() at: %08lx\n",
+ CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
+
+ /*
+ * 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;
+ s = (ulong *)addr_sp;
+ *s-- = 0;
+ *s-- = 0;
+ addr_sp = (ulong)s;
+ debug ("Stack Pointer at: %08lx\n", addr_sp);
+
+ /*
+ * Save local variables to board info struct
+ */
+ bd->bi_memstart = CONFIG_SYS_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, (void *)gd, sizeof (gd_t));
+
+ /* On the purple board we copy the code in a special way
+ * in order to solve flash problems
+ */
+#ifdef CONFIG_PURPLE
+ copy_code(addr);
+#endif
+
+ 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)
+{
+ cmd_tbl_t *cmdtp;
+#ifndef CONFIG_SYS_NO_FLASH
+ ulong size;
+#endif
+ extern void malloc_bin_reloc (void);
+#ifndef CONFIG_ENV_IS_NOWHERE
+ extern char * env_name_spec;
+#endif
+ char *s;
+ bd_t *bd;
+
+ gd = id;
+ gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
+
+ debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
+
+ gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
+
+ monitor_flash_len = (ulong)&uboot_end_data - dest_addr;
+
+ /*
+ * We have to relocate the command table manually
+ */
+ for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; 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 CONFIG_SYS_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 CONFIG_ENV_IS_NOWHERE
+ env_name_spec += gd->reloc_off;
+#endif
+
+ bd = gd->bd;
+
+ /* The Malloc area is immediately below the monitor copy in DRAM */
+ mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
+ TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN);
+ malloc_bin_reloc();
+
+#ifndef CONFIG_SYS_NO_FLASH
+ /* configure available FLASH banks */
+ size = flash_init();
+ display_flash_config (size);
+ bd->bi_flashsize = size;
+#endif
+
+ bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
+#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
+ bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */
+#else
+ bd->bi_flashoffset = 0;
+#endif
+
+#ifdef CONFIG_CMD_NAND
+ puts ("NAND: ");
+ nand_init (); /* go init the NAND */
+#endif
+
+#if defined(CONFIG_CMD_ONENAND)
+ onenand_init();
+#endif
+
+ /* relocate environment function pointers etc. */
+ env_relocate();
+
+ /* IP Address */
+ bd->bi_ip_addr = getenv_IPaddr("ipaddr");
+
+#if defined(CONFIG_PCI)
+ /*
+ * Do pci configuration
+ */
+ pci_init();
+#endif
+
+/** leave this here (after malloc(), environment and PCI are working) **/
+ /* Initialize stdio devices */
+ stdio_init ();
+
+ jumptable_init ();
+
+ /* Initialize the console (after the relocation and devices init) */
+ console_init_r ();
+/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
+
+ /* Initialize from environment */
+ if ((s = getenv ("loadaddr")) != NULL) {
+ load_addr = simple_strtoul (s, NULL, 16);
+ }
+#if defined(CONFIG_CMD_NET)
+ if ((s = getenv ("bootfile")) != NULL) {
+ copy_filename (BootFile, s, sizeof (BootFile));
+ }
+#endif
+
+#ifdef CONFIG_CMD_SPI
+ puts ("SPI: ");
+ spi_init (); /* go init the SPI */
+ puts ("ready\n");
+#endif
+
+#if defined(CONFIG_MISC_INIT_R)
+ /* miscellaneous platform dependent initialisations */
+ misc_init_r ();
+#endif
+
+#ifdef CONFIG_BITBANGMII
+ bb_miiphy_init();
+#endif
+#if defined(CONFIG_CMD_NET)
+#if defined(CONFIG_NET_MULTI)
+ puts ("Net: ");
+#endif
+ 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 (;;);
+}