mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 22:03:15 +00:00
93 lines
1.9 KiB
C
93 lines
1.9 KiB
C
#include <common.h>
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#include <config.h>
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#include <pcmcia.h>
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#include <asm/arch/pxa-regs.h>
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#include <asm/io.h>
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static inline void msWait(unsigned msVal)
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{
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udelay(msVal*1000);
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}
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int pcmcia_on (void)
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{
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unsigned int reg_arr[] = {
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0x48000028, CONFIG_SYS_MCMEM0_VAL,
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0x4800002c, CONFIG_SYS_MCMEM1_VAL,
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0x48000030, CONFIG_SYS_MCATT0_VAL,
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0x48000034, CONFIG_SYS_MCATT1_VAL,
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0x48000038, CONFIG_SYS_MCIO0_VAL,
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0x4800003c, CONFIG_SYS_MCIO1_VAL,
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0, 0
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};
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int i, rc;
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#ifdef CONFIG_EXADRON1
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int cardDetect;
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volatile unsigned int *v_pBCRReg =
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(volatile unsigned int *) 0x08000000;
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#endif
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debug ("%s\n", __FUNCTION__);
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i = 0;
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while (reg_arr[i]) {
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(*(volatile unsigned int *) reg_arr[i]) |= reg_arr[i + 1];
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i += 2;
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}
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udelay (1000);
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debug ("%s: programmed mem controller \n", __FUNCTION__);
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#ifdef CONFIG_EXADRON1
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/*define useful BCR masks */
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#define BCR_CF_INIT_VAL 0x00007230
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#define BCR_CF_PWRON_BUSOFF_RESETOFF_VAL 0x00007231
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#define BCR_CF_PWRON_BUSOFF_RESETON_VAL 0x00007233
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#define BCR_CF_PWRON_BUSON_RESETON_VAL 0x00007213
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#define BCR_CF_PWRON_BUSON_RESETOFF_VAL 0x00007211
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/* we see from the GPIO bit if the card is present */
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cardDetect = !(GPLR0 & GPIO_bit (14));
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if (cardDetect) {
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printf ("No PCMCIA card found!\n");
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}
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/* reset the card via the BCR line */
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*v_pBCRReg = (unsigned) BCR_CF_INIT_VAL;
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msWait (500);
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*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETOFF_VAL;
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msWait (500);
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*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETON_VAL;
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msWait (500);
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*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETON_VAL;
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msWait (500);
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*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETOFF_VAL;
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msWait (1500);
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/* enable address bus */
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GPCR1 = 0x01;
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/* and the first CF slot */
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MECR = 0x00000002;
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#endif /* EXADRON 1 */
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rc = check_ide_device (0); /* use just slot 0 */
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return rc;
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}
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#if defined(CONFIG_CMD_PCMCIA)
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int pcmcia_off (void)
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{
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return 0;
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}
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#endif
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