/*
* Based on linux/arch/mips/txx9/rbtx4938/setup.c,
* and RBTX49xx patch from CELF patch archive.
*
* 2003-2005 (c) MontaVista Software, Inc.
* (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/string.h>
#include <linux/export.h>
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/err.h>
#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#include <linux/platform_data/txx9/ndfmc.h>
#include <linux/serial_core.h>
#include <linux/mtd/physmap.h>
#include <linux/leds.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <asm/bootinfo.h>
#include <asm/idle.h>
#include <asm/time.h>
#include <asm/reboot.h>
#include <asm/r4kcache.h>
#include <asm/setup.h>
#include <asm/txx9/generic.h>
#include <asm/txx9/pci.h>
#include <asm/txx9tmr.h>
#include <asm/txx9/dmac.h>
#ifdef CONFIG_CPU_TX49XX
#include <asm/txx9/tx4938.h>
#endif
/* EBUSC settings of TX4927, etc. */
struct resource txx9_ce_res[8];
static char txx9_ce_res_name[8][4]; /* "CEn" */
/* pcode, internal register */
unsigned int txx9_pcode;
char txx9_pcode_str[8];
static struct resource txx9_reg_res = {
.name = txx9_pcode_str,
.flags = IORESOURCE_MEM,
};
void __init
txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size)
{
int i;
for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) {
sprintf(txx9_ce_res_name[i], "CE%d", i);
txx9_ce_res[i].flags = IORESOURCE_MEM;
txx9_ce_res[i].name = txx9_ce_res_name[i];
}
txx9_pcode = pcode;
sprintf(txx9_pcode_str, "TX%x", pcode);
if (base) {
txx9_reg_res.start = base & 0xfffffffffULL;
txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1);
request_resource(&iomem_resource, &txx9_reg_res);
}
}
/* clocks */
unsigned int txx9_master_clock;
unsigned int txx9_cpu_clock;
unsigned int txx9_gbus_clock;
#ifdef CONFIG_CPU_TX39XX
/* don't enable by default - see errata */
int txx9_ccfg_toeon __initdata;
#else
int txx9_ccfg_toeon __initdata = 1;
#endif
#define BOARD_VEC(board) extern struct txx9_board_vec board;
#include <asm/txx9/boards.h>
#undef BOARD_VEC
struct txx9_board_vec *txx9_board_vec __initdata;
static char txx9_system_type[32];
static struct txx9_board_vec *board_vecs[] __initdata = {
#define BOARD_VEC(board) &board,
#include <asm/txx9/boards.h>
#undef BOARD_VEC
};
static struct txx9_board_vec *__init find_board_byname(const char *name)
{
int i;
/* search board_vecs table */
for (i = 0; i < ARRAY_SIZE(board_vecs); i++) {
if (strstr(board_vecs[i]->system, name))
return board_vecs[i];
}
return NULL;
}
static void __init prom_init_cmdline(void)
{
int argc;
int *argv32;
int i; /* Always ignore the "-c" at argv[0] */
if (fw_arg0 >= CKSEG0 || fw_arg1 < CKSEG0) {
/*
* argc is not a valid number, or argv32 is not a valid
* pointer
*/
argc = 0;
argv32 = NULL;
} else {
argc = (int)fw_arg0;
argv32 = (int *)fw_arg1;
}
arcs_cmdline[0] = '\0';
for (i = 1; i < argc; i++) {
char *str = (char *)(long)argv32[i];
if (i != 1)
strcat(arcs_cmdline, " ");
if (strchr(str, ' ')) {
strcat(arcs_cmdline, "\"");
strcat(arcs_cmdline, str);
strcat(arcs_cmdline, "\"");
} else
strcat(arcs_cmdline, str);
}
}
static int txx9_ic_disable __initdata;
static int txx9_dc_disable __initdata;
#if defined(CONFIG_CPU_TX49XX)
/* flush all cache on very early stage (before 4k_cache_init) */
static void __init early_flush_dcache(void)
{
unsigned int conf = read_c0_config();
unsigned int dc_size = 1 << (12 + ((conf & CONF_DC) >> 6));
unsigned int linesz = 32;
unsigned long addr, end;
end = INDEX_BASE + dc_size / 4;
/* 4way, waybit=0 */
for (addr = INDEX_BASE; addr