From 931c9671ea251b0b6c87b79cc8c1c7573a05bee9 Mon Sep 17 00:00:00 2001 From: wdenk Date: Thu, 12 Sep 2002 22:36:57 +0000 Subject: [PATCH] Das U-Boot: Universal Boot Loader --- cpu/mpc8xx/commproc.c | 112 +++++++++++++++ post/post.c | 318 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 430 insertions(+) create mode 100644 cpu/mpc8xx/commproc.c create mode 100644 post/post.c diff --git a/cpu/mpc8xx/commproc.c b/cpu/mpc8xx/commproc.c new file mode 100644 index 0000000000..62a4458a5e --- /dev/null +++ b/cpu/mpc8xx/commproc.c @@ -0,0 +1,112 @@ +/* + * (C) Copyright 2000-2002 + * 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 +#include + +#ifdef CFG_ALLOC_DPRAM + +int dpram_init (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + /* Reclaim the DP memory for our use. */ + gd->dp_alloc_base = CPM_DATAONLY_BASE; + gd->dp_alloc_top = CPM_DATAONLY_BASE + CPM_DATAONLY_SIZE; + + return (0); +} + +/* Allocate some memory from the dual ported ram. We may want to + * enforce alignment restrictions, but right now everyone is a good + * citizen. + */ +uint dpram_alloc (uint size) +{ + DECLARE_GLOBAL_DATA_PTR; + uint addr = gd->dp_alloc_base; + + if ((gd->dp_alloc_base + size) >= gd->dp_alloc_top) + return (CPM_DP_NOSPACE); + + gd->dp_alloc_base += size; + + return addr; +} + +uint dpram_base (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + return gd->dp_alloc_base; +} + +/* Allocate some memory from the dual ported ram. We may want to + * enforce alignment restrictions, but right now everyone is a good + * citizen. + */ +uint dpram_alloc_align (uint size, uint align) +{ + DECLARE_GLOBAL_DATA_PTR; + + uint addr, mask = align - 1; + + addr = (gd->dp_alloc_base + mask) & ~mask; + + if ((addr + size) >= gd->dp_alloc_top) + return (CPM_DP_NOSPACE); + + gd->dp_alloc_base = addr + size; + + return addr; +} + +uint dpram_base_align (uint align) +{ + DECLARE_GLOBAL_DATA_PTR; + + uint mask = align - 1; + + return (gd->dp_alloc_base + mask) & ~mask; +} +#endif /* CFG_ALLOC_DPRAM */ + +#ifdef CONFIG_POST + +void post_word_store (ulong a) +{ + volatile void *save_addr = + ((immap_t *) CFG_IMMR)->im_cpm.cp_dpmem + CPM_POST_WORD_ADDR; + + *(volatile ulong *) save_addr = a; +} + +ulong post_word_load (void) +{ + volatile void *save_addr = + ((immap_t *) CFG_IMMR)->im_cpm.cp_dpmem + CPM_POST_WORD_ADDR; + + return *(volatile ulong *) save_addr; +} + +#endif /* CONFIG_POST */ diff --git a/post/post.c b/post/post.c new file mode 100644 index 0000000000..4f4b72f6b0 --- /dev/null +++ b/post/post.c @@ -0,0 +1,318 @@ +/* + * (C) Copyright 2002 + * 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 +#include +#include +#include + +#ifdef CONFIG_POST + +#define POST_MAX_NUMBER 32 + +#define BOOTMODE_MAGIC 0xDEAD0000 + +void post_bootmode_init (void) +{ + int bootmode = post_bootmode_get (0); + + if (bootmode == 0) { + bootmode = POST_POWERON; + } else if (bootmode == POST_POWERON) { + bootmode = POST_POWERNORMAL; + } else { + return; + } + + post_word_store (BOOTMODE_MAGIC | bootmode); +} + +int post_bootmode_get (unsigned int *last_test) +{ + unsigned long word = post_word_load (); + int bootmode; + + if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) { + return 0; + } + + bootmode = word & 0xFF; + + if (last_test && (bootmode & POST_POWERTEST)) { + *last_test = (word >> 8) & 0xFF; + } + + return bootmode; +} + +void post_bootmode_clear (void) +{ + post_word_store (0); +} + +static void post_bootmode_test_on (unsigned int last_test) +{ + unsigned long word = post_word_load (); + + word |= POST_POWERTEST; + + word |= (last_test & 0xFF) << 8; + + post_word_store (word); +} + +static void post_bootmode_test_off (void) +{ + unsigned long word = post_word_load (); + + word &= ~POST_POWERTEST; + + post_word_store (word); +} + +static void post_get_flags (int *test_flags) +{ + int flag[] = { POST_POWERON, POST_POWERNORMAL, POST_POWERFAIL }; + char *var[] = { "post_poweron", "post_normal", "post_shutdown" }; + int varnum = sizeof (var) / sizeof (var[0]); + char list[128]; /* long enough for POST list */ + char *name; + char *s; + int last; + int i, j; + + for (j = 0; j < post_list_size; j++) { + test_flags[j] = post_list[j].flags; + } + + for (i = 0; i < varnum; i++) { + if (getenv_r (var[i], list, sizeof (list)) <= 0) + continue; + + for (j = 0; j < post_list_size; j++) { + test_flags[j] &= ~flag[i]; + } + + last = 0; + name = list; + while (!last) { + while (*name && *name == ' ') + name++; + if (*name == 0) + break; + s = name + 1; + while (*s && *s != ' ') + s++; + if (*s == 0) + last = 1; + else + *s = 0; + + for (j = 0; j < post_list_size; j++) { + if (strcmp (post_list[j].cmd, name) == 0) { + test_flags[j] |= flag[i]; + break; + } + } + + if (j == post_list_size) { + printf ("No such test: %s\n", name); + } + + name = s + 1; + } + } +} + +static int post_run_single (struct post_test *test, + int test_flags, int flags, unsigned int i) +{ + if ((flags & test_flags & POST_ALWAYS) && + (flags & test_flags & POST_MEM)) { + WATCHDOG_RESET (); + + if (!(flags & POST_REBOOT)) { + if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) { + post_bootmode_test_on (i); + } + + post_log ("START %s\n", test->cmd); + } + + if ((*test->test) (flags) != 0) + post_log ("FAILED\n"); + else + post_log ("PASSED\n"); + + if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) { + post_bootmode_test_off (); + } + + return 0; + } else { + return -1; + } +} + +int post_run (char *name, int flags) +{ + unsigned int i; + int test_flags[POST_MAX_NUMBER]; + + post_get_flags (test_flags); + + if (name == NULL) { + unsigned int last; + + if (post_bootmode_get (&last) & POST_POWERTEST) { + if (last < post_list_size && + (flags & test_flags[last] & POST_ALWAYS) && + (flags & test_flags[last] & POST_MEM)) { + + post_run_single (post_list + last, test_flags[last], + flags | POST_REBOOT, last); + + for (i = last + 1; i < post_list_size; i++) { + post_run_single (post_list + i, test_flags[i], + flags, i); + } + } + } else { + for (i = 0; i < post_list_size; i++) { + post_run_single (post_list + i, test_flags[i], flags, + i); + } + } + + return 0; + } else { + for (i = 0; i < post_list_size; i++) { + if (strcmp (post_list[i].cmd, name) == 0) + break; + } + + if (i < post_list_size) { + return post_run_single (post_list + i, + test_flags[i], + flags, i); + } else { + return -1; + } + } +} + +static int post_info_single (struct post_test *test, int full) +{ + if (test->flags & POST_MANUAL) { + if (full) + printf ("%s - %s\n" + " %s\n", test->cmd, test->name, test->desc); + else + printf (" %-15s - %s\n", test->cmd, test->name); + + return 0; + } else { + return -1; + } +} + +int post_info (char *name) +{ + unsigned int i; + + if (name == NULL) { + for (i = 0; i < post_list_size; i++) { + post_info_single (post_list + i, 0); + } + + return 0; + } else { + for (i = 0; i < post_list_size; i++) { + if (strcmp (post_list[i].cmd, name) == 0) + break; + } + + if (i < post_list_size) { + return post_info_single (post_list + i, 1); + } else { + return -1; + } + } +} + +int post_log (char *format, ...) +{ + va_list args; + uint i; + char printbuffer[CFG_PBSIZE]; + + va_start (args, format); + + /* For this to work, printbuffer must be larger than + * anything we ever want to print. + */ + i = vsprintf (printbuffer, format, args); + va_end (args); + + /* Send to the stdout file */ + puts (printbuffer); + + return 0; +} + +void post_reloc (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + unsigned int i; + + /* + * We have to relocate the test table manually + */ + for (i = 0; i < post_list_size; i++) { + ulong addr; + struct post_test *test = post_list + i; + + if (test->name) { + addr = (ulong) (test->name) + gd->reloc_off; + test->name = (char *) addr; + } + + if (test->cmd) { + addr = (ulong) (test->cmd) + gd->reloc_off; + test->cmd = (char *) addr; + } + + if (test->desc) { + addr = (ulong) (test->desc) + gd->reloc_off; + test->desc = (char *) addr; + } + + if (test->test) { + addr = (ulong) (test->test) + gd->reloc_off; + test->test = (int (*)(int flags)) addr; + } + } +} + +#endif /* CONFIG_POST */ -- 2.25.1