mirror of
https://github.com/u-boot/u-boot.git
synced 2024-11-25 21:24:21 +08:00
94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
#include <common.h>
|
|
#include <config.h>
|
|
|
|
#include <pcmcia.h>
|
|
#include <asm/arch/pxa-regs.h>
|
|
#include <asm/io.h>
|
|
|
|
static inline void msWait(unsigned msVal)
|
|
{
|
|
udelay(msVal*1000);
|
|
}
|
|
|
|
int pcmcia_on (void)
|
|
{
|
|
unsigned int reg_arr[] = {
|
|
0x48000028, CONFIG_SYS_MCMEM0_VAL,
|
|
0x4800002c, CONFIG_SYS_MCMEM1_VAL,
|
|
0x48000030, CONFIG_SYS_MCATT0_VAL,
|
|
0x48000034, CONFIG_SYS_MCATT1_VAL,
|
|
0x48000038, CONFIG_SYS_MCIO0_VAL,
|
|
0x4800003c, CONFIG_SYS_MCIO1_VAL,
|
|
|
|
0, 0
|
|
};
|
|
int i, rc;
|
|
|
|
#ifdef CONFIG_EXADRON1
|
|
int cardDetect;
|
|
volatile unsigned int *v_pBCRReg =
|
|
(volatile unsigned int *) 0x08000000;
|
|
#endif
|
|
|
|
debug ("%s\n", __FUNCTION__);
|
|
|
|
i = 0;
|
|
while (reg_arr[i]) {
|
|
(*(volatile unsigned int *) reg_arr[i]) |= reg_arr[i + 1];
|
|
i += 2;
|
|
}
|
|
udelay (1000);
|
|
|
|
debug ("%s: programmed mem controller \n", __FUNCTION__);
|
|
|
|
#ifdef CONFIG_EXADRON1
|
|
|
|
/*define useful BCR masks */
|
|
#define BCR_CF_INIT_VAL 0x00007230
|
|
#define BCR_CF_PWRON_BUSOFF_RESETOFF_VAL 0x00007231
|
|
#define BCR_CF_PWRON_BUSOFF_RESETON_VAL 0x00007233
|
|
#define BCR_CF_PWRON_BUSON_RESETON_VAL 0x00007213
|
|
#define BCR_CF_PWRON_BUSON_RESETOFF_VAL 0x00007211
|
|
|
|
/* we see from the GPIO bit if the card is present */
|
|
cardDetect = !(GPLR0 & GPIO_bit (14));
|
|
|
|
if (cardDetect) {
|
|
printf ("No PCMCIA card found!\n");
|
|
}
|
|
|
|
/* reset the card via the BCR line */
|
|
*v_pBCRReg = (unsigned) BCR_CF_INIT_VAL;
|
|
msWait (500);
|
|
|
|
*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETOFF_VAL;
|
|
msWait (500);
|
|
|
|
*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETON_VAL;
|
|
msWait (500);
|
|
|
|
*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETON_VAL;
|
|
msWait (500);
|
|
|
|
*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETOFF_VAL;
|
|
msWait (1500);
|
|
|
|
/* enable address bus */
|
|
GPCR1 = 0x01;
|
|
/* and the first CF slot */
|
|
MECR = 0x00000002;
|
|
|
|
#endif /* EXADRON 1 */
|
|
|
|
rc = check_ide_device (0); /* use just slot 0 */
|
|
|
|
return rc;
|
|
}
|
|
|
|
#if defined(CONFIG_CMD_PCMCIA)
|
|
int pcmcia_off (void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|