arch/avr32/boards/atstk1000/setup.c

   1 /*
   2  * ATSTK1000 board-specific setup code.
   3  *
   4  * Copyright (C) 2005-2006 Atmel Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #include <linux/bootmem.h>
  11 #include <linux/init.h>
  12 #include <linux/types.h>
  13 #include <linux/linkage.h>
  14
  15 #include <asm/setup.h>
  16
  17 #include <asm/arch/board.h>
  18
  19 /* Initialized by bootloader-specific startup code. */
  20 struct tag *bootloader_tags __initdata;
  21
  22 struct lcdc_platform_data __initdata atstk1000_fb0_data;
  23
  24 asmlinkage void __init board_early_init(void)
  25 {
  26         extern void sdram_init(void);
  27
  28 #ifdef CONFIG_LOADER_STANDALONE
  29         sdram_init();
  30 #endif
  31 }
  32
  33 void __init board_setup_fbmem(unsigned long fbmem_start,
  34                               unsigned long fbmem_size)
  35 {
  36         if (!fbmem_size)
  37                 return;
  38
  39         if (!fbmem_start) {
  40                 void *fbmem;
  41
  42                 fbmem = alloc_bootmem_low_pages(fbmem_size);
  43                 fbmem_start = __pa(fbmem);
  44         } else {
  45                 pg_data_t *pgdat;
  46
  47                 for_each_online_pgdat(pgdat) {
  48                         if (fbmem_start >= pgdat->bdata->node_boot_start
  49                             && fbmem_start <= pgdat->bdata->node_low_pfn)
  50                                 reserve_bootmem_node(pgdat, fbmem_start,
  51                                                      fbmem_size);
  52                 }
  53         }
  54
  55         printk("%luKiB framebuffer memory at address 0x%08lx\n",
  56                fbmem_size >> 10, fbmem_start);
  57         atstk1000_fb0_data.fbmem_start = fbmem_start;
  58         atstk1000_fb0_data.fbmem_size = fbmem_size;
  59 }