blob: cffcbde89a27119a78ea1599ae10b045bf24b1f0 [file] [log] [blame]
Wolfgang Denk9d407992006-07-10 23:07:28 +02001#include <common.h>
2#include <mpc8xx.h>
3#include <pcmcia.h>
4
5#undef CONFIG_PCMCIA
6
Jon Loeligerc508a4c2007-07-09 18:31:28 -05007#if defined(CONFIG_CMD_PCMCIA)
Wolfgang Denk9d407992006-07-10 23:07:28 +02008#define CONFIG_PCMCIA
9#endif
10
Jon Loeligerc508a4c2007-07-09 18:31:28 -050011#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
Wolfgang Denk9d407992006-07-10 23:07:28 +020012#define CONFIG_PCMCIA
13#endif
14
15#ifdef CONFIG_PCMCIA
16
17#define PCMCIA_BOARD_MSG "GTH COMPACT FLASH"
18
19int pcmcia_voltage_set (int slot, int vcc, int vpp)
20{ /* Do nothing */
21 return 0;
22}
23
24int pcmcia_hardware_enable (int slot)
25{
26 volatile immap_t *immap;
27 volatile cpm8xx_t *cp;
28 volatile pcmconf8xx_t *pcmp;
29 volatile sysconf8xx_t *sysp;
30 uint reg, mask;
31
32 debug ("hardware_enable: GTH Slot %c\n", 'A' + slot);
33
34 immap = (immap_t *) CFG_IMMR;
35 sysp = (sysconf8xx_t *) (&(((immap_t *) CFG_IMMR)->im_siu_conf));
36 pcmp = (pcmconf8xx_t *) (&(((immap_t *) CFG_IMMR)->im_pcmcia));
37 cp = (cpm8xx_t *) (&(((immap_t *) CFG_IMMR)->im_cpm));
38
39 /* clear interrupt state, and disable interrupts */
40 pcmp->pcmc_pscr = PCMCIA_MASK (_slot_);
41 pcmp->pcmc_per &= ~PCMCIA_MASK (_slot_);
42
43 /*
44 * Disable interrupts, DMA, and PCMCIA buffers
45 * (isolate the interface) and assert RESET signal
46 */
47 debug ("Disable PCMCIA buffers and assert RESET\n");
48 reg = 0;
49 reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
50 reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
51 PCMCIA_PGCRX (_slot_) = reg;
52 udelay (500);
53
54 /*
55 * Make sure there is a card in the slot,
56 * then configure the interface.
57 */
58 udelay (10000);
59 debug ("[%d] %s: PIPR(%p)=0x%x\n",
60 __LINE__, __FUNCTION__,
61 &(pcmp->pcmc_pipr), pcmp->pcmc_pipr);
62 if (pcmp->pcmc_pipr & 0x98000000) {
63 printf (" No Card found\n");
64 return (1);
65 }
66
67 mask = PCMCIA_VS1 (slot) | PCMCIA_VS2 (slot);
68 reg = pcmp->pcmc_pipr;
69 debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
70 reg,
71 (reg & PCMCIA_VS1 (slot)) ? "n" : "ff",
72 (reg & PCMCIA_VS2 (slot)) ? "n" : "ff");
73
74 debug ("Enable PCMCIA buffers and stop RESET\n");
75 reg = PCMCIA_PGCRX (_slot_);
76 reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
77 reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
78 PCMCIA_PGCRX (_slot_) = reg;
79
80 udelay (250000); /* some cards need >150 ms to come up :-( */
81
82 debug ("# hardware_enable done\n");
83
84 return 0;
85}
Jon Loeligerc508a4c2007-07-09 18:31:28 -050086#if defined(CONFIG_CMD_PCMCIA)
Wolfgang Denk9d407992006-07-10 23:07:28 +020087int pcmcia_hardware_disable(int slot)
88{
89 return 0; /* No hardware to disable */
90}
91#endif
92
93#endif /* CONFIG_PCMCIA */