mirror of https://gitee.com/openkylin/linux.git
[PATCH] m68knommu: create common config code for all 68VZ328 platforms
Create common 68VZ328 config code. It is essentially the same for all boards that use this, so no point having a version of it for each. Signed-off-by: Greg Ungerer <gerg@uclinux.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Greg Ungerer
Linus Torvalds
parent
55f37debf7
commit
8c2b58ce71
|
|
@ -0,0 +1,210 @@
|
|||
/***************************************************************************/
|
||||
|
||||
/*
|
||||
* linux/arch/m68knommu/platform/68VZ328/config.c
|
||||
*
|
||||
* Copyright (C) 1993 Hamish Macdonald
|
||||
* Copyright (C) 1999 D. Jeff Dionne
|
||||
* Copyright (C) 2001 Georges Menie, Ken Desmet
|
||||
*
|
||||
* 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/config.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/tty.h>
|
||||
#include <linux/console.h>
|
||||
#include <linux/kd.h>
|
||||
#include <linux/netdevice.h>
|
||||
|
||||
#include <asm/setup.h>
|
||||
#include <asm/system.h>
|
||||
#include <asm/pgtable.h>
|
||||
#include <asm/irq.h>
|
||||
#include <asm/machdep.h>
|
||||
#include <asm/MC68VZ328.h>
|
||||
#include <asm/bootstd.h>
|
||||
|
||||
#ifdef CONFIG_INIT_LCD
|
||||
#include "bootlogo.h"
|
||||
#endif
|
||||
|
||||
/***************************************************************************/
|
||||
|
||||
void m68328_timer_init(irqreturn_t (*timer_routine) (int, void *, struct pt_regs *));
|
||||
void m68328_timer_tick(void);
|
||||
unsigned long m68328_timer_gettimeoffset(void);
|
||||
void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec);
|
||||
|
||||
/***************************************************************************/
|
||||
/* Init Drangon Engine hardware */
|
||||
/***************************************************************************/
|
||||
#if defined(CONFIG_DRAGEN2)
|
||||
|
||||
static void m68vz328_reset(void)
|
||||
{
|
||||
local_irq_disable();
|
||||
|
||||
#ifdef CONFIG_INIT_LCD
|
||||
PBDATA |= 0x20; /* disable CCFL light */
|
||||
PKDATA |= 0x4; /* disable LCD controller */
|
||||
LCKCON = 0;
|
||||
#endif
|
||||
|
||||
__asm__ __volatile__(
|
||||
"reset\n\t"
|
||||
"moveal #0x04000000, %a0\n\t"
|
||||
"moveal 0(%a0), %sp\n\t"
|
||||
"moveal 4(%a0), %a0\n\t"
|
||||
"jmp (%a0)"
|
||||
);
|
||||
}
|
||||
|
||||
static void init_hardware(char *command, int size)
|
||||
{
|
||||
#ifdef CONFIG_DIRECT_IO_ACCESS
|
||||
SCR = 0x10; /* allow user access to internal registers */
|
||||
#endif
|
||||
|
||||
/* CSGB Init */
|
||||
CSGBB = 0x4000;
|
||||
CSB = 0x1a1;
|
||||
|
||||
/* CS8900 init */
|
||||
/* PK3: hardware sleep function pin, active low */
|
||||
PKSEL |= PK(3); /* select pin as I/O */
|
||||
PKDIR |= PK(3); /* select pin as output */
|
||||
PKDATA |= PK(3); /* set pin high */
|
||||
|
||||
/* PF5: hardware reset function pin, active high */
|
||||
PFSEL |= PF(5); /* select pin as I/O */
|
||||
PFDIR |= PF(5); /* select pin as output */
|
||||
PFDATA &= ~PF(5); /* set pin low */
|
||||
|
||||
/* cs8900 hardware reset */
|
||||
PFDATA |= PF(5);
|
||||
{ int i; for (i = 0; i < 32000; ++i); }
|
||||
PFDATA &= ~PF(5);
|
||||
|
||||
/* INT1 enable (cs8900 IRQ) */
|
||||
PDPOL &= ~PD(1); /* active high signal */
|
||||
PDIQEG &= ~PD(1);
|
||||
PDIRQEN |= PD(1); /* IRQ enabled */
|
||||
|
||||
#ifdef CONFIG_68328_SERIAL_UART2
|
||||
/* Enable RXD TXD port bits to enable UART2 */
|
||||
PJSEL &= ~(PJ(5) | PJ(4));
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_INIT_LCD
|
||||
/* initialize LCD controller */
|
||||
LSSA = (long) screen_bits;
|
||||
LVPW = 0x14;
|
||||
LXMAX = 0x140;
|
||||
LYMAX = 0xef;
|
||||
LRRA = 0;
|
||||
LPXCD = 3;
|
||||
LPICF = 0x08;
|
||||
LPOLCF = 0;
|
||||
LCKCON = 0x80;
|
||||
PCPDEN = 0xff;
|
||||
PCSEL = 0;
|
||||
|
||||
/* Enable LCD controller */
|
||||
PKDIR |= 0x4;
|
||||
PKSEL |= 0x4;
|
||||
PKDATA &= ~0x4;
|
||||
|
||||
/* Enable CCFL backlighting circuit */
|
||||
PBDIR |= 0x20;
|
||||
PBSEL |= 0x20;
|
||||
PBDATA &= ~0x20;
|
||||
|
||||
/* contrast control register */
|
||||
PFDIR |= 0x1;
|
||||
PFSEL &= ~0x1;
|
||||
PWMR = 0x037F;
|
||||
#endif
|
||||
}
|
||||
|
||||
/***************************************************************************/
|
||||
/* Init RT-Control uCdimm hardware */
|
||||
/***************************************************************************/
|
||||
#elif defined(CONFIG_UCDIMM)
|
||||
|
||||
static void m68vz328_reset(void)
|
||||
{
|
||||
local_irq_disable();
|
||||
asm volatile ("
|
||||
moveal #0x10c00000, %a0;
|
||||
moveb #0, 0xFFFFF300;
|
||||
moveal 0(%a0), %sp;
|
||||
moveal 4(%a0), %a0;
|
||||
jmp (%a0);
|
||||
");
|
||||
}
|
||||
|
||||
unsigned char *cs8900a_hwaddr;
|
||||
static int errno;
|
||||
|
||||
_bsc0(char *, getserialnum)
|
||||
_bsc1(unsigned char *, gethwaddr, int, a)
|
||||
_bsc1(char *, getbenv, char *, a)
|
||||
|
||||
static void init_hardware(char *command, int size)
|
||||
{
|
||||
char *p;
|
||||
|
||||
printk(KERN_INFO "uCdimm serial string [%s]\n", getserialnum());
|
||||
p = cs8900a_hwaddr = gethwaddr(0);
|
||||
printk(KERN_INFO "uCdimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
|
||||
p[0], p[1], p[2], p[3], p[4], p[5]);
|
||||
p = getbenv("APPEND");
|
||||
if (p)
|
||||
strcpy(p, command);
|
||||
else
|
||||
command[0] = 0;
|
||||
}
|
||||
|
||||
/***************************************************************************/
|
||||
#else
|
||||
|
||||
static void m68vz328_reset(void)
|
||||
{
|
||||
}
|
||||
|
||||
static void init_hardware(char *command, int size)
|
||||
{
|
||||
}
|
||||
|
||||
/***************************************************************************/
|
||||
#endif
|
||||
/***************************************************************************/
|
||||
|
||||
void config_BSP(char *command, int size)
|
||||
{
|
||||
printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
|
||||
|
||||
#if defined(CONFIG_BOOTPARAM)
|
||||
strncpy(command, CONFIG_BOOTPARAM_STRING, size);
|
||||
command[size-1] = 0;
|
||||
#else
|
||||
memset(command, 0, size);
|
||||
#endif
|
||||
|
||||
init_hardware(command, size);
|
||||
|
||||
mach_sched_init = (void *) m68328_timer_init;
|
||||
mach_tick = m68328_timer_tick;
|
||||
mach_gettimeoffset = m68328_timer_gettimeoffset;
|
||||
mach_gettod = m68328_timer_gettod;
|
||||
mach_reset = m68vz328_reset;
|
||||
}
|
||||
|
||||
/***************************************************************************/
|
||||
Loading…
Reference in New Issue