forked from luck/tmp_suning_uos_patched
e9a43850e6
board_early_init() is left over from some early prototyping work where we had to initialize the SDRAM controller ourselves. This depends on the kernel being loaded into static RAM, which just isn't possible on any commercially available products today. In order to run without a boot loader, we need to create a zImage stub or have the debugger initialize the SDRAM for us (for really low-level debugging) Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/*
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* ATSTK1000 board-specific setup code.
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*
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* Copyright (C) 2005-2006 Atmel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/bootmem.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/linkage.h>
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#include <asm/setup.h>
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#include <asm/arch/board.h>
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/* Initialized by bootloader-specific startup code. */
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struct tag *bootloader_tags __initdata;
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struct lcdc_platform_data __initdata atstk1000_fb0_data;
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void __init board_setup_fbmem(unsigned long fbmem_start,
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unsigned long fbmem_size)
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{
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if (!fbmem_size)
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return;
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if (!fbmem_start) {
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void *fbmem;
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fbmem = alloc_bootmem_low_pages(fbmem_size);
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fbmem_start = __pa(fbmem);
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} else {
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pg_data_t *pgdat;
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for_each_online_pgdat(pgdat) {
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if (fbmem_start >= pgdat->bdata->node_boot_start
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&& fbmem_start <= pgdat->bdata->node_low_pfn)
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reserve_bootmem_node(pgdat, fbmem_start,
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fbmem_size);
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}
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}
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printk("%luKiB framebuffer memory at address 0x%08lx\n",
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fbmem_size >> 10, fbmem_start);
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atstk1000_fb0_data.fbmem_start = fbmem_start;
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atstk1000_fb0_data.fbmem_size = fbmem_size;
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}
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