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[PATCH] sh: Drop hp690 discontig support

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There was only one board using this (hp690 specifically), and it just so
happens that it's only physically discontiguous at the "normal" P1 offset.  If
we bump up the P1 offset, it's possible to hit a shadowed region of memory
where we suddenly become magically contiguous.

As people have been using this shadowed region workaround for quite some time
(and without any adverse effects), it's time to drop the left over discontig
bits that no longer have any practical use (it was always very much
hp690-centric to begin with).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paul Mundt
2005-11-07 00:58:24 -08:00
committed by Linus Torvalds
parent d229401f13
commit 65463b73b1
5 changed files with 9 additions and 116 deletions
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26
arch/sh/kernel/setup.c
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@ -83,9 +83,9 @@ static struct sh_machine_vector* __init get_mv_byname(const char* name);
/* ... */
#define COMMAND_LINE ((char *) (PARAM+0x100))
#define RAMDISK_IMAGE_START_MASK 0x07FF
#define RAMDISK_IMAGE_START_MASK 0x07FF
#define RAMDISK_PROMPT_FLAG 0x8000
#define RAMDISK_LOAD_FLAG 0x4000
#define RAMDISK_LOAD_FLAG 0x4000
static char command_line[COMMAND_LINE_SIZE] = { 0, };
@ -284,18 +284,6 @@ void __init setup_arch(char **cmdline_p)
#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
#ifdef CONFIG_DISCONTIGMEM
NODE_DATA(0)->bdata = &discontig_node_bdata[0];
NODE_DATA(1)->bdata = &discontig_node_bdata[1];
bootmap_size = init_bootmem_node(NODE_DATA(1),
PFN_UP(__MEMORY_START_2ND),
PFN_UP(__MEMORY_START_2ND),
PFN_DOWN(__MEMORY_START_2ND+__MEMORY_SIZE_2ND));
free_bootmem_node(NODE_DATA(1), __MEMORY_START_2ND, __MEMORY_SIZE_2ND);
reserve_bootmem_node(NODE_DATA(1), __MEMORY_START_2ND, bootmap_size);
#endif
/*
* Find the highest page frame number we have available
*/
@ -306,10 +294,10 @@ void __init setup_arch(char **cmdline_p)
*/
max_low_pfn = max_pfn;
/*
/*
* Partially used pages are not usable - thus
* we are rounding upwards:
*/
*/
start_pfn = PFN_UP(__pa(_end));
/*
@ -360,12 +348,12 @@ void __init setup_arch(char **cmdline_p)
reserve_bootmem_node(NODE_DATA(0), __MEMORY_START, PAGE_SIZE);
#ifdef CONFIG_BLK_DEV_INITRD
ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
if (&__rd_start != &__rd_end) {
ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
if (&__rd_start != &__rd_end) {
LOADER_TYPE = 1;
INITRD_START = PHYSADDR((unsigned long)&__rd_start) - __MEMORY_START;
INITRD_SIZE = (unsigned long)&__rd_end - (unsigned long)&__rd_start;
}
}
if (LOADER_TYPE && INITRD_START) {
if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {