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/*
* derived from mol/mol.c,
* Copyright (C) 2003, 2004 Samuel Rydh (samuel@ibrium.se)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2
*
*/
#include "openbios/config.h"
#include "openbios/nvram.h"
#include "openbios/bindings.h"
#include "libc/byteorder.h"
#include "libc/vsprintf.h"
#include "openbios/drivers.h"
#include "macio.h"
#include "cuda.h"
#include "escc.h"
#define OW_IO_NVRAM_SIZE 0x00020000
#define OW_IO_NVRAM_OFFSET 0x00060000
#define OW_IO_NVRAM_SHIFT 4
#define NW_IO_NVRAM_SIZE 0x00004000
#define NW_IO_NVRAM_OFFSET 0xfff04000
#define NW_IO_NVRAM_SHIFT 1
#define IO_OPENPIC_SIZE 0x00040000
#define IO_OPENPIC_OFFSET 0x00040000
static char *nvram;
int
arch_nvram_size( void )
{
if (is_oldworld())
return OW_IO_NVRAM_SIZE >> OW_IO_NVRAM_SHIFT;
else
return NW_IO_NVRAM_SIZE >> NW_IO_NVRAM_SHIFT;
}
void macio_nvram_init(const char *path, uint32_t addr)
{
phandle_t chosen, aliases;
phandle_t dnode;
int props[2];
char buf[64];
unsigned long nvram_size, nvram_offset;
if (is_oldworld()) {
nvram_offset = OW_IO_NVRAM_OFFSET;
nvram_size = OW_IO_NVRAM_SIZE;
} else {
nvram_offset = NW_IO_NVRAM_OFFSET;
nvram_size = NW_IO_NVRAM_SIZE;
push_str("/");
fword("find-device");
fword("new-device");
push_str("nvram");
fword("device-name");
fword("finish-device");
}
nvram = (char*)addr + nvram_offset;
snprintf(buf, sizeof(buf), "%s/nvram", path);
nvram_init(buf);
dnode = find_dev(buf);
set_int_property(dnode, "#bytes", arch_nvram_size() );
props[0] = __cpu_to_be32(nvram_offset);
props[1] = __cpu_to_be32(nvram_size);
set_property(dnode, "reg", (char *)&props, sizeof(props));
set_property(dnode, "device_type", "nvram", 6);
NEWWORLD(set_property(dnode, "compatible", "nvram,flash", 12));
chosen = find_dev("/chosen");
push_str(buf);
fword("open-dev");
set_int_property(chosen, "nvram", POP());
aliases = find_dev("/aliases");
set_property(aliases, "nvram", buf, strlen(buf) + 1);
}
#ifdef DUMP_NVRAM
static void
dump_nvram(void)
{
int i, j;
for (i = 0; i < 10; i++)
{
for (j = 0; j < 16; j++)
printk ("%02x ", nvram[(i*16+j)<<4]);
printk (" ");
for (j = 0; j < 16; j++)
if (isprint(nvram[(i*16+j)<<4]))
printk("%c", nvram[(i*16+j)<<4]);
else
printk(".");
printk ("\n");
}
}
#endif
void
arch_nvram_put( char *buf )
{
int i;
unsigned int it_shift;
if (is_oldworld())
it_shift = OW_IO_NVRAM_SHIFT;
else
it_shift = NW_IO_NVRAM_SHIFT;
for (i=0; i< arch_nvram_size() ; i++)
nvram[i << it_shift] = buf[i];
#ifdef DUMP_NVRAM
printk("new nvram:\n");
dump_nvram();
#endif
}
void
arch_nvram_get( char *buf )
{
int i;
unsigned int it_shift;
if (is_oldworld())
it_shift = OW_IO_NVRAM_SHIFT;
else
it_shift = NW_IO_NVRAM_SHIFT;
for (i=0; i< arch_nvram_size(); i++)
buf[i] = nvram[i << it_shift];
#ifdef DUMP_NVRAM
printk("current nvram:\n");
dump_nvram();
#endif
}
static void
openpic_init(const char *path, uint32_t addr)
{
phandle_t dnode;
int props[2];
char buf[128];
push_str(path);
fword("find-device");
fword("new-device");
push_str("interrupt-controller");
fword("device-name");
fword("finish-device");
snprintf(buf, sizeof(buf), "%s/interrupt-controller", path);
dnode = find_dev(buf);
set_property(dnode, "device_type", "open-pic", 9);
set_property(dnode, "compatible", "chrp,open-pic", 14);
set_property(dnode, "built-in", "", 0);
props[0] = __cpu_to_be32(IO_OPENPIC_OFFSET);
props[1] = __cpu_to_be32(IO_OPENPIC_SIZE);
set_property(dnode, "reg", (char *)&props, sizeof(props));
set_int_property(dnode, "#interrupt-cells", 2);
set_int_property(dnode, "#address-cells", 0);
set_property(dnode, "interrupt-controller", "", 0);
set_int_property(dnode, "clock-frequency", 4166666);
}
DECLARE_NODE(ob_macio, INSTALL_OPEN, sizeof(int), "Tmac-io");
/* ( str len -- addr ) */
static void
ob_macio_decode_unit(void *private)
{
ucell addr;
const char *arg = pop_fstr_copy();
addr = strtol(arg, NULL, 16);
free((char*)arg);
PUSH(addr);
}
/* ( addr -- str len ) */
static void
ob_macio_encode_unit(void *private)
{
char buf[8];
ucell addr = POP();
snprintf(buf, sizeof(buf), "%x", addr);
push_str(buf);
}
NODE_METHODS(ob_macio) = {
{ "decode-unit", ob_macio_decode_unit },
{ "encode-unit", ob_macio_encode_unit },
};
void
ob_macio_heathrow_init(const char *path, uint32_t addr)
{
phandle_t aliases;
REGISTER_NODE(ob_macio);
aliases = find_dev("/aliases");
set_property(aliases, "mac-io", path, strlen(path) + 1);
cuda_init(path, addr);
macio_nvram_init(path, addr);
escc_init(path, addr);
macio_ide_init(path, addr, 1);
}
void
ob_macio_keylargo_init(const char *path, uint32_t addr)
{
phandle_t aliases;
aliases = find_dev("/aliases");
set_property(aliases, "mac-io", path, strlen(path) + 1);
cuda_init(path, addr);
/* The NewWorld NVRAM is not located in the MacIO device */
macio_nvram_init("", 0);
escc_init(path, addr);
macio_ide_init(path, addr, 3);
openpic_init(path, addr);
}
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