mirror of
https://gitlab.com/qemu-project/openbios.git
synced 2024-02-13 08:34:06 +08:00
60c755b54f
git-svn-id: svn://coreboot.org/openbios/openbios-devel@408 f158a5a8-5612-0410-a976-696ce0be7e32
116 lines
2.3 KiB
C
116 lines
2.3 KiB
C
/*
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* derived from mol/mol.c,
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* Copyright (C) 2003, 2004 Samuel Rydh (samuel@ibrium.se)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2
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*
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*/
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#include "openbios/config.h"
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#include "openbios/nvram.h"
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#include "openbios/bindings.h"
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#include "libc/byteorder.h"
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#include "libc/vsprintf.h"
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#include "macio.h"
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#include "cuda.h"
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#include "escc.h"
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#define IO_NVRAM_SIZE 0x00020000
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#define IO_NVRAM_OFFSET 0x00060000
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static char *nvram;
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int
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arch_nvram_size( void )
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{
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return IO_NVRAM_SIZE>>4;
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}
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void macio_nvram_init(const char *path, uint32_t addr)
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{
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phandle_t chosen, aliases;
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phandle_t dnode;
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int props[2];
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char buf[64];
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nvram = (char*)addr + IO_NVRAM_OFFSET;
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snprintf(buf, sizeof(buf), "%s/nvram", path);
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nvram_init(buf);
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dnode = find_dev(buf);
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set_int_property(dnode, "#bytes", arch_nvram_size() );
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props[0] = __cpu_to_be32(IO_NVRAM_OFFSET);
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props[1] = __cpu_to_be32(IO_NVRAM_SIZE);
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set_property(dnode, "reg", (char *)&props, sizeof(props));
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set_property(dnode, "device_type", "nvram", 6);
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chosen = find_dev("/chosen");
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push_str(buf);
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fword("open-dev");
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set_int_property(chosen, "nvram", POP());
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aliases = find_dev("/aliases");
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set_property(aliases, "nvram", buf, strlen(buf) + 1);
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}
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#ifdef DUMP_NVRAM
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static void
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dump_nvram(void)
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{
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int i, j;
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for (i = 0; i < 10; i++)
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{
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for (j = 0; j < 16; j++)
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printk ("%02x ", nvram[(i*16+j)<<4]);
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printk (" ");
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for (j = 0; j < 16; j++)
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if (isprint(nvram[(i*16+j)<<4]))
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printk("%c", nvram[(i*16+j)<<4]);
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else
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printk(".");
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printk ("\n");
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}
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}
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#endif
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void
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arch_nvram_put( char *buf )
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{
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int i;
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for (i=0; i< arch_nvram_size() ; i++)
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nvram[i<<4]=buf[i];
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#ifdef DUMP_NVRAM
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printk("new nvram:\n");
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dump_nvram();
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#endif
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}
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void
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arch_nvram_get( char *buf )
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{
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int i;
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for (i=0; i< arch_nvram_size(); i++)
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buf[i]=nvram[i<<4];
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#ifdef DUMP_NVRAM
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printk("current nvram:\n");
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dump_nvram();
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#endif
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}
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void
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ob_macio_init(const char *path, uint32_t addr)
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{
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phandle_t aliases;
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aliases = find_dev("/aliases");
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set_property(aliases, "mac-io", path, strlen(path) + 1);
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cuda_init(path, addr);
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macio_nvram_init(path, addr);
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escc_init(path, addr);
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}
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