diff options
Diffstat (limited to 'grub-core/kern/sparc64/ieee1275/init.c')
| -rw-r--r-- | grub-core/kern/sparc64/ieee1275/init.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/grub-core/kern/sparc64/ieee1275/init.c b/grub-core/kern/sparc64/ieee1275/init.c new file mode 100644 index 0000000..72ee1f1 --- /dev/null +++ b/grub-core/kern/sparc64/ieee1275/init.c @@ -0,0 +1,174 @@ +/* init.c -- Initialize GRUB on SPARC64. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2009 Free Software Foundation, Inc. + * + * GRUB 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 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/kernel.h> +#include <grub/mm.h> +#include <grub/env.h> +#include <grub/err.h> +#include <grub/misc.h> +#include <grub/time.h> +#include <grub/machine/boot.h> +#include <grub/ieee1275/console.h> +#include <grub/machine/kernel.h> +#include <grub/machine/time.h> +#include <grub/ieee1275/ofdisk.h> +#include <grub/ieee1275/ieee1275.h> + +grub_addr_t grub_ieee1275_original_stack; + +void +grub_exit (void) +{ + grub_ieee1275_exit (); +} + +static grub_uint64_t +ieee1275_get_time_ms (void) +{ + grub_uint32_t msecs = 0; + + grub_ieee1275_milliseconds (&msecs); + + return msecs; +} + +grub_uint32_t +grub_get_rtc (void) +{ + return ieee1275_get_time_ms (); +} + +grub_addr_t +grub_arch_modules_addr (void) +{ + extern char _end[]; + return (grub_addr_t) _end; +} + +void +grub_machine_set_prefix (void) +{ + if (grub_prefix[0] != '(') + { + char bootpath[IEEE1275_MAX_PATH_LEN]; + char *prefix, *path, *colon; + grub_ssize_t actual; + + if (grub_ieee1275_get_property (grub_ieee1275_chosen, "bootpath", + &bootpath, sizeof (bootpath), &actual)) + { + /* Should never happen. */ + grub_printf ("/chosen/bootpath property missing!\n"); + grub_env_set ("prefix", ""); + return; + } + + /* Transform an OF device path to a GRUB path. */ + colon = grub_strchr (bootpath, ':'); + if (colon) + { + char *part = colon + 1; + + /* Consistently provide numbered partitions to GRUB. + OpenBOOT traditionally uses alphabetical partition + specifiers. */ + if (part[0] >= 'a' && part[0] <= 'z') + part[0] = '1' + (part[0] - 'a'); + } + prefix = grub_ieee1275_encode_devname (bootpath); + + path = grub_xasprintf("%s%s", prefix, grub_prefix); + + grub_strcpy (grub_prefix, path); + + grub_free (path); + grub_free (prefix); + } + + grub_env_set ("prefix", grub_prefix); +} + +static void +grub_heap_init (void) +{ + grub_mm_init_region ((void *) (grub_modules_get_end () + + GRUB_KERNEL_MACHINE_STACK_SIZE), 0x200000); +} + +static void +grub_parse_cmdline (void) +{ + grub_ssize_t actual; + char args[256]; + + if (grub_ieee1275_get_property (grub_ieee1275_chosen, "bootargs", &args, + sizeof args, &actual) == 0 + && actual > 1) + { + int i = 0; + + while (i < actual) + { + char *command = &args[i]; + char *end; + char *val; + + end = grub_strchr (command, ';'); + if (end == 0) + i = actual; /* No more commands after this one. */ + else + { + *end = '\0'; + i += end - command + 1; + while (grub_isspace(args[i])) + i++; + } + + /* Process command. */ + val = grub_strchr (command, '='); + if (val) + { + *val = '\0'; + grub_env_set (command, val + 1); + } + } + } +} + +void +grub_machine_init (void) +{ + grub_ieee1275_init (); + grub_console_init_early (); + grub_heap_init (); + grub_console_init_lately (); + + grub_ieee1275_set_flag (GRUB_IEEE1275_FLAG_NO_PARTITION_0); + grub_ofdisk_init (); + + grub_parse_cmdline (); + grub_install_get_time_ms (ieee1275_get_time_ms); +} + +void +grub_machine_fini (void) +{ + grub_ofdisk_fini (); + grub_console_fini (); +} |