47 lines
834 B
C
47 lines
834 B
C
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/*
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* linux/arch/arm/kernel/arch.c
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*
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* Architecture specific fixups.
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*/
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#include <linux/config.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <asm/elf.h>
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#include <asm/page.h>
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#include <asm/setup.h>
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#include <asm/mach/arch.h>
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unsigned int vram_size;
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#ifdef CONFIG_ARCH_ACORN
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unsigned int memc_ctrl_reg;
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unsigned int number_mfm_drives;
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static int __init parse_tag_acorn(const struct tag *tag)
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{
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memc_ctrl_reg = tag->u.acorn.memc_control_reg;
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number_mfm_drives = tag->u.acorn.adfsdrives;
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switch (tag->u.acorn.vram_pages) {
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case 512:
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vram_size += PAGE_SIZE * 256;
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case 256:
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vram_size += PAGE_SIZE * 256;
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default:
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break;
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}
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#if 0
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if (vram_size) {
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desc->video_start = 0x02000000;
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desc->video_end = 0x02000000 + vram_size;
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}
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#endif
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return 0;
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}
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__tagtable(ATAG_ACORN, parse_tag_acorn);
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#endif
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