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/*
***************************************************************************
* Definitions for IDT RC323434 CPU.
*
****************************************************************************
* Kiran Rao
*
* Original form
****************************************************************************
* P. Sadik Oct 08, 2003
*
* Started revision history
* Made IDT_BUS_FREQ a kernel configuration parameter
****************************************************************************
* P. Sadik Oct 10, 2003
*
* Removed IDT_BUS_FREQ, since this parameter is no longer required. Instead
* idt_cpu_freq is used everywhere
****************************************************************************
* P. Sadik Oct 20, 2003
*
* Removed RC32434_BASE_BAUD
****************************************************************************
*/
#ifndef _RC32434_H_
#define _RC32434_H_
#include <linux/autoconf.h>
#include <linux/delay.h>
#include <asm/io.h>
#define RC32434_REG_BASE 0x18000000
#define interrupt ((volatile INT_t ) INT0_VirtualAddress)
#define IDT_CLOCK_MULT 2
#define MIPS_CPU_TIMER_IRQ 7
/* Interrupt Controller */
#define IC_GROUP0_PEND (RC32434_REG_BASE + 0x38000)
#define IC_GROUP0_MASK (RC32434_REG_BASE + 0x38008)
#define IC_GROUP_OFFSET 0x0C
#define NUM_INTR_GROUPS 5
/* 16550 UARTs */
#define GROUP0_IRQ_BASE 8 /* GRP2 IRQ numbers start here */
#define GROUP1_IRQ_BASE (GROUP0_IRQ_BASE + 32) /* GRP3 IRQ numbers start here */
#define GROUP2_IRQ_BASE (GROUP1_IRQ_BASE + 32) /* GRP4 IRQ numbers start here */
#define GROUP3_IRQ_BASE (GROUP2_IRQ_BASE + 32) /* GRP5 IRQ numbers start here */
#define GROUP4_IRQ_BASE (GROUP3_IRQ_BASE + 32)
#ifdef __MIPSEB__
#define RC32434_UART0_BASE (RC32434_REG_BASE + 0x58003)
#else
#define RC32434_UART0_BASE (RC32434_REG_BASE + 0x58000)
#endif
#define RC32434_UART0_IRQ GROUP3_IRQ_BASE + 0
// #define EB434_UART1_IRQ GROUP4_IRQ_BASE + 11
#define local_readl(addr) __raw_readl(addr)
#define local_writel(l,addr) __raw_writel(l,addr)
/* cpu pipeline flush */
static inline void rc32434_sync(void)
{
__asm__ volatile ("sync");
}
static inline void rc32434_sync_udelay(int us)
{
__asm__ volatile ("sync");
udelay(us);
}
static inline void rc32434_sync_delay(int ms)
{
__asm__ volatile ("sync");
mdelay(ms);
}
/*
* C access to CLZ and CLO instructions
* (count leading zeroes/ones).
*/
static inline int rc32434_clz(unsigned long val)
{
int ret;
__asm__ volatile (
".set\tnoreorder\n\t"
".set\tnoat\n\t"
".set\tmips32\n\t"
"clz\t%0,%1\n\t"
".set\tmips0\n\t"
".set\tat\n\t"
".set\treorder"
: "=r" (ret)
: "r" (val));
return ret;
}
static inline int rc32434_clo(unsigned long val)
{
int ret;
__asm__ volatile (
".set\tnoreorder\n\t"
".set\tnoat\n\t"
".set\tmips32\n\t"
"clo\t%0,%1\n\t"
".set\tmips0\n\t"
".set\tat\n\t"
".set\treorder"
: "=r" (ret)
: "r" (val));
return ret;
}
#endif /* _RC32434_H_ */
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