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Diffstat (limited to 'arch/mips/pmc-sierra/msp71xx/msp_prom.c')
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_prom.c60
1 files changed, 1 insertions, 59 deletions
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_prom.c b/arch/mips/pmc-sierra/msp71xx/msp_prom.c
index e5bd5481d8d..c317a3623ce 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_prom.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_prom.c
@@ -40,12 +40,6 @@
40#include <linux/string.h> 40#include <linux/string.h>
41#include <linux/interrupt.h> 41#include <linux/interrupt.h>
42#include <linux/mm.h> 42#include <linux/mm.h>
43#ifdef CONFIG_CRAMFS
44#include <linux/cramfs_fs.h>
45#endif
46#ifdef CONFIG_SQUASHFS
47#include <linux/squashfs_fs.h>
48#endif
49 43
50#include <asm/addrspace.h> 44#include <asm/addrspace.h>
51#include <asm/bootinfo.h> 45#include <asm/bootinfo.h>
@@ -435,10 +429,6 @@ struct prom_pmemblock *__init prom_getmdesc(void)
435 char *str; 429 char *str;
436 unsigned int memsize; 430 unsigned int memsize;
437 unsigned int heaptop; 431 unsigned int heaptop;
438#ifdef CONFIG_MTD_PMC_MSP_RAMROOT
439 void *ramroot_start;
440 unsigned long ramroot_size;
441#endif
442 int i; 432 int i;
443 433
444 str = prom_getenv(memsz_env); 434 str = prom_getenv(memsz_env);
@@ -506,19 +496,7 @@ struct prom_pmemblock *__init prom_getmdesc(void)
506 i++; /* 3 */ 496 i++; /* 3 */
507 mdesc[i].type = BOOT_MEM_RESERVED; 497 mdesc[i].type = BOOT_MEM_RESERVED;
508 mdesc[i].base = CPHYSADDR((u32)_text); 498 mdesc[i].base = CPHYSADDR((u32)_text);
509#ifdef CONFIG_MTD_PMC_MSP_RAMROOT 499 mdesc[i].size = CPHYSADDR(PAGE_ALIGN((u32)_end)) - mdesc[i].base;
510 if (get_ramroot(&ramroot_start, &ramroot_size)) {
511 /*
512 * Rootfs in RAM -- follows kernel
513 * Combine rootfs image with kernel block so a
514 * page (4k) isn't wasted between memory blocks
515 */
516 mdesc[i].size = CPHYSADDR(PAGE_ALIGN(
517 (u32)ramroot_start + ramroot_size)) - mdesc[i].base;
518 } else
519#endif
520 mdesc[i].size = CPHYSADDR(PAGE_ALIGN(
521 (u32)_end)) - mdesc[i].base;
522 500
523 /* Remainder of RAM -- under memsize */ 501 /* Remainder of RAM -- under memsize */
524 i++; /* 5 */ 502 i++; /* 5 */
@@ -528,39 +506,3 @@ struct prom_pmemblock *__init prom_getmdesc(void)
528 506
529 return &mdesc[0]; 507 return &mdesc[0];
530} 508}
531
532/* rootfs functions */
533#ifdef CONFIG_MTD_PMC_MSP_RAMROOT
534bool get_ramroot(void **start, unsigned long *size)
535{
536 extern char _end[];
537
538 /* Check for start following the end of the kernel */
539 void *check_start = (void *)_end;
540
541 /* Check for supported rootfs types */
542#ifdef CONFIG_CRAMFS
543 if (*(__u32 *)check_start == CRAMFS_MAGIC) {
544 /* Get CRAMFS size */
545 *start = check_start;
546 *size = PAGE_ALIGN(((struct cramfs_super *)
547 check_start)->size);
548
549 return true;
550 }
551#endif
552#ifdef CONFIG_SQUASHFS
553 if (*((unsigned int *)check_start) == SQUASHFS_MAGIC) {
554 /* Get SQUASHFS size */
555 *start = check_start;
556 *size = PAGE_ALIGN(((struct squashfs_super_block *)
557 check_start)->bytes_used);
558
559 return true;
560 }
561#endif
562
563 return false;
564}
565EXPORT_SYMBOL(get_ramroot);
566#endif