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76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
/* Platform-specific operations for the Cisco 1700 Series router
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* (c) 2009 Philippe Vachon <philippe@cowpig.ca>
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*
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* Licensed under the GNU General Public License v.2.0. See the COPYING
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* file in the root directory of this source distribution for more info.
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*/
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#include <types.h>
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#include <mach/c1700/platform.h>
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#include <mach/c1700/platio.h>
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#include <printf.h>
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/**
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* perform hardware-specifc initialization for this platform
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*/
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void platform_init()
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{
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}
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/**
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* Perform a sanity check on flash
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* @returns 0 if no flash found, number of flash devices found otherwise
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*/
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uint32_t check_flash()
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{
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uint32_t *ptr = (uint32_t *)FLASH_BASE;
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if (*ptr != FS_FILE_MAGIC) {
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return 0;
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}
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return 1;
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/* TODO: add support for PCMCIA flash */
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}
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/**
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* print a directory listing of the 'main' flash device in the system
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*/
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void flash_directory()
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{
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struct fs_ent *f = (struct fs_ent *)FLASH_BASE;
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uint32_t offset = 0;
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/* Iterate over the files; f->magic is 0 if an invalid file is found. */
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while (f->magic == FS_FILE_MAGIC) {
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printf("%s\n", f->filename);
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offset += sizeof(struct fs_ent) + f->length;
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f = (struct fs_ent *)(FLASH_BASE + offset);
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}
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}
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/**
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* Locate the stage two loader for CiscoLoad for this particular platform
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* returns 0 if not found, 1 if found
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*/
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uint32_t locate_stage_two()
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{
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return platio_find_file("ciscoload.two");
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}
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/**
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* Kick into the stage two loader.
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*/
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void stage_two(uint32_t kern_off, uint32_t kern_entry, uint32_t kern_size,
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uint32_t kern_loadpt)
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{
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uint32_t s2addr = ((uint32_t)find_file("ciscoload.two", FLASH_BASE)) +
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sizeof(struct fs_ent);
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((void (*)(uint32_t data_offset, uint32_t data_length, uint32_t entry_pt,
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uint32_t load_offset)) (s2addr))
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(kern_off, kern_size, kern_entry, kern_loadpt);
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}
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