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/*
* Copyright 2006, Realtek Semiconductor Corp.
*
* arch/rlx/rlxocp/setup.c
* Interrupt and exception initialization for RTL8198
*
* Tony Wu (tonywu@realtek.com.tw)
* Nov. 7, 2006
*/
#include <linux/console.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <asm/addrspace.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/bootinfo.h>
#include <asm/time.h>
#include <asm/reboot.h>
#include <asm/rlxbsp.h>
#include <asm/rtl865x/rtl865xc_asicregs.h>
#include "bspchip.h"
extern int bsp_swcore_init(unsigned int version);
static void prom_putchar(char c)
{
#define UART0_BASE 0xB8002000
#define UART0_THR (UART0_BASE + 0x000)
#define UART0_FCR (UART0_BASE + 0x008)
#define UART0_LSR (UART0_BASE + 0x014)
#define TXRST 0x04
#define CHAR_TRIGGER_14 0xC0
#define LSR_THRE 0x20
#define TxCHAR_AVAIL 0x00
#define TxCHAR_EMPTY 0x20
unsigned int busy_cnt = 0;
do
{
/* Prevent Hanging */
if (busy_cnt++ >= 30000)
{
/* Reset Tx FIFO */
REG8(UART0_FCR) = TXRST | CHAR_TRIGGER_14;
return;
}
} while ((REG8(UART0_LSR) & LSR_THRE) == TxCHAR_AVAIL);
/* Send Character */
REG8(UART0_THR) = c;
}
static void early_console_write(const char *s, unsigned n)
{
while (n-- && *s) {
if (*s == '\n')
prom_putchar('\r');
prom_putchar(*s);
s++;
}
}
static void shutdown_netdev(void)
{
struct net_device *dev;
printk("Shutdown network interface\n");
read_lock(&dev_base_lock);
for_each_netdev(&init_net, dev)
{
if(dev->flags &IFF_UP)
{
printk("%s:===>\n",dev->name);
rtnl_lock();
#if defined(CONFIG_COMPAT_NET_DEV_OPS)
if(dev->stop)
dev->stop(dev);
#else
if ((dev->netdev_ops)&&(dev->netdev_ops->ndo_stop))
dev->netdev_ops->ndo_stop(dev);
#endif
rtnl_unlock();
}
}
#if defined(CONFIG_RTL8192CD) || defined(CONFIG_RTL8192E)
{
extern void force_stop_wlan_hw(void);
force_stop_wlan_hw();
}
#endif
read_unlock(&dev_base_lock);
}
static void bsp_machine_restart(char *command)
{
static void (*back_to_prom)(void) = (void (*)(void)) 0xbfc00000;
REG32(GIMR)=0;
local_irq_disable();
#ifdef CONFIG_NET
shutdown_netdev();
#endif
REG32(BSP_WDTCNR) = 0; //enable watch dog
while (1) ;
/* Reboot */
back_to_prom();
}
static void bsp_machine_halt(void)
{
while(1);
}
static void bsp_machine_power_off(void)
{
while(1);
}
/*
* callback function
*/
#define REG32(reg) (*(volatile unsigned int *)(reg))
extern void _imem_dmem_init(void);
void __init bsp_setup(void)
{
int ret= -1;
unsigned int version = 0;
if((REG32(0xb8000000)&0xf)<3)
{
REG32(0xb8000088)= (REG32(0xb8000088) & ( ~(3<<5)&~(0xF<<0)));
printk("0xb8000088=%x\n",REG32(0xb8000088));
REG32(0xb8000088) =(REG32(0xb8000088)|(1<<4));
printk("0xb8000088=%x\n",REG32(0xb8000088));
REG32(0xb8000088) = REG32(0xb8000088) & (~(3<<7));
printk("0xb8000088=%x\n",REG32(0xb8000088));
}
/* define io/mem region */
ioport_resource.start = 0x18000000;
ioport_resource.end = 0x1fffffff;
iomem_resource.start = 0x18000000;
iomem_resource.end = 0x1fffffff;
/* set reset vectors */
_machine_restart = bsp_machine_restart;
_machine_halt = bsp_machine_halt;
pm_power_off = bsp_machine_power_off;
#if defined(CONFIG_RTL_DUAL_PCIESLOT_BIWLAN_D)
{
unsigned int tmp=0,tmp1=0,tmp2=0;
tmp1=REG32(0xb8001004);
if((REG32(0xb8001000)&0x80000000)==0x80000000)
{
//REG32(0xb8001008)=0x6d13a4c0;
REG32(0xb8001004)=tmp1;
}
}
#endif
version = 8;
/* initialize uart */
bsp_serial_init();
_imem_dmem_init();
/* initialize switch core */
#if defined(CONFIG_RTL_819X)
ret = bsp_swcore_init(version);
if(ret != 0)
{
bsp_machine_halt();
}
#endif
}
pure_initcall(rtl819x_add_device_usb);
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