53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/* linux/include/asm-arm/arch-s3c2410/uncompress.h
|
|
*
|
|
* Copyright (c) 2003, 2007 Simtec Electronics
|
|
* http://armlinux.simtec.co.uk/
|
|
* Ben Dooks <ben@simtec.co.uk>
|
|
*
|
|
* S3C2410 - uncompress code
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_UNCOMPRESS_H
|
|
#define __ASM_ARCH_UNCOMPRESS_H
|
|
|
|
#include <asm/arch/regs-gpio.h>
|
|
#include <asm/arch/map.h>
|
|
|
|
/* working in physical space... */
|
|
#undef S3C2410_GPIOREG
|
|
#define S3C2410_GPIOREG(x) ((S3C24XX_PA_GPIO + (x)))
|
|
|
|
#include <asm/plat-s3c/uncompress.h>
|
|
|
|
static inline int is_arm926(void)
|
|
{
|
|
unsigned int cpuid;
|
|
|
|
asm volatile ("mrc p15, 0, %0, c1, c0, 0" : "=r" (cpuid));
|
|
|
|
return ((cpuid & 0xff0) == 0x260);
|
|
}
|
|
|
|
static void arch_detect_cpu(void)
|
|
{
|
|
unsigned int cpuid;
|
|
|
|
cpuid = *((volatile unsigned int *)S3C2410_GSTATUS1);
|
|
cpuid &= S3C2410_GSTATUS1_IDMASK;
|
|
|
|
if (is_arm926() || cpuid == S3C2410_GSTATUS1_2440 ||
|
|
cpuid == S3C2410_GSTATUS1_2442) {
|
|
fifo_mask = S3C2440_UFSTAT_TXMASK;
|
|
fifo_max = 63 << S3C2440_UFSTAT_TXSHIFT;
|
|
} else {
|
|
fifo_mask = S3C2410_UFSTAT_TXMASK;
|
|
fifo_max = 15 << S3C2410_UFSTAT_TXSHIFT;
|
|
}
|
|
}
|
|
|
|
#endif /* __ASM_ARCH_UNCOMPRESS_H */
|