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git.ipfire.org Git - people/ms/u-boot.git/blob - board/kup/common/pcmcia.c
7 #if defined(CONFIG_CMD_PCMCIA)
11 #if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
17 #define PCMCIA_BOARD_MSG "KUP"
19 #define KUP4K_PCMCIA_B_3V3 (0x00020000)
21 int pcmcia_hardware_enable(int slot
)
23 volatile immap_t
*immap
;
24 volatile cpm8xx_t
*cp
;
25 volatile pcmconf8xx_t
*pcmp
;
26 volatile sysconf8xx_t
*sysp
;
29 debug ("hardware_enable: " PCMCIA_BOARD_MSG
" Slot %c\n", 'A'+slot
);
33 immap
= (immap_t
*)CONFIG_SYS_IMMR
;
34 sysp
= (sysconf8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_siu_conf
));
35 pcmp
= (pcmconf8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_pcmcia
));
36 cp
= (cpm8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_cpm
));
39 * Configure SIUMCR to enable PCMCIA port B
40 * (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
42 sysp
->sc_siumcr
&= ~SIUMCR_DBGC11
; /* set DBGC to 00 */
44 /* clear interrupt state, and disable interrupts */
45 pcmp
->pcmc_pscr
= PCMCIA_MASK(slot
);
46 pcmp
->pcmc_per
&= ~PCMCIA_MASK(slot
);
49 * Disable interrupts, DMA, and PCMCIA buffers
50 * (isolate the interface) and assert RESET signal
52 debug ("Disable PCMCIA buffers and assert RESET\n");
54 reg
|= __MY_PCMCIA_GCRX_CXRESET
; /* active high */
55 reg
|= __MY_PCMCIA_GCRX_CXOE
; /* active low */
56 PCMCIA_PGCRX(slot
) = reg
;
60 * Configure Port B pins for
63 if (slot
) { /* Slot A is built-in */
64 cp
->cp_pbdir
|= KUP4K_PCMCIA_B_3V3
;
65 cp
->cp_pbpar
&= ~KUP4K_PCMCIA_B_3V3
;
66 /* remove all power */
67 cp
->cp_pbdat
|= KUP4K_PCMCIA_B_3V3
; /* active low */
70 * Make sure there is a card in the slot, then configure the interface.
73 debug ("[%d] %s: PIPR(%p)=0x%x\n",
74 __LINE__
,__FUNCTION__
,
75 &(pcmp
->pcmc_pipr
),pcmp
->pcmc_pipr
);
76 if (pcmp
->pcmc_pipr
& (0x18000000 >> (slot
<< 4))) {
77 printf (" No Card found\n");
84 printf("%s Slot %c:", slot
? "" : "\n", 'A' + slot
);
85 mask
= PCMCIA_VS1(slot
) | PCMCIA_VS2(slot
);
86 reg
= pcmp
->pcmc_pipr
;
87 debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
89 (reg
&PCMCIA_VS1(slot
))?"n":"ff",
90 (reg
&PCMCIA_VS2(slot
))?"n":"ff");
91 if ((reg
& mask
) == mask
) {
92 puts (" 5.0V card found: NOT SUPPORTED !!!\n");
95 cp
->cp_pbdat
&= ~KUP4K_PCMCIA_B_3V3
;
96 puts (" 3.3V card found: ");
99 /* VCC switch error flag, PCMCIA slot INPACK_ pin */
100 cp
->cp_pbdir
&= ~(0x0020 | 0x0010);
101 cp
->cp_pbpar
&= ~(0x0020 | 0x0010);
104 debug ("Enable PCMCIA buffers and stop RESET\n");
105 reg
= PCMCIA_PGCRX(slot
);
106 reg
&= ~__MY_PCMCIA_GCRX_CXRESET
; /* active high */
107 reg
&= ~__MY_PCMCIA_GCRX_CXOE
; /* active low */
108 PCMCIA_PGCRX(slot
) = reg
;
110 udelay(250000); /* some cards need >150 ms to come up :-( */
112 debug ("# hardware_enable done\n");
118 #if defined(CONFIG_CMD_PCMCIA)
119 int pcmcia_hardware_disable(int slot
)
121 volatile immap_t
*immap
;
122 volatile cpm8xx_t
*cp
;
123 volatile pcmconf8xx_t
*pcmp
;
126 debug ("hardware_disable: " PCMCIA_BOARD_MSG
" Slot %c\n", 'A'+slot
);
128 immap
= (immap_t
*)CONFIG_SYS_IMMR
;
129 pcmp
= (pcmconf8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_pcmcia
));
130 cp
= (cpm8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_cpm
));
132 /* remove all power */
134 cp
->cp_pbdat
|= KUP4K_PCMCIA_B_3V3
;
136 /* Configure PCMCIA General Control Register */
137 debug ("Disable PCMCIA buffers and assert RESET\n");
139 reg
|= __MY_PCMCIA_GCRX_CXRESET
; /* active high */
140 reg
|= __MY_PCMCIA_GCRX_CXOE
; /* active low */
141 PCMCIA_PGCRX(slot
) = reg
;
150 int pcmcia_voltage_set(int slot
, int vcc
, int vpp
)
152 volatile immap_t
*immap
;
153 volatile cpm8xx_t
*cp
;
154 volatile pcmconf8xx_t
*pcmp
;
157 debug ("voltage_set: " \
159 " Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
160 'A'+slot
, vcc
/10, vcc
%10, vpp
/10, vcc
%10);
162 if (!slot
) /* Slot A is not configurable */
165 immap
= (immap_t
*)CONFIG_SYS_IMMR
;
166 pcmp
= (pcmconf8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_pcmcia
));
167 cp
= (cpm8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_cpm
));
170 * Disable PCMCIA buffers (isolate the interface)
171 * and assert RESET signal
173 debug ("Disable PCMCIA buffers and assert RESET\n");
174 reg
= PCMCIA_PGCRX(slot
);
175 reg
|= __MY_PCMCIA_GCRX_CXRESET
; /* active high */
176 reg
|= __MY_PCMCIA_GCRX_CXOE
; /* active low */
177 PCMCIA_PGCRX(slot
) = reg
;
180 debug ("PCMCIA power OFF\n");
182 * Configure Port B pins for
185 cp
->cp_pbdir
|= KUP4K_PCMCIA_B_3V3
;
186 cp
->cp_pbpar
&= ~KUP4K_PCMCIA_B_3V3
;
187 /* remove all power */
188 cp
->cp_pbdat
|= KUP4K_PCMCIA_B_3V3
; /* active low */
193 cp
->cp_pbdat
&= ~KUP4K_PCMCIA_B_3V3
;
194 debug ("PCMCIA powered at 3.3V\n");
197 debug ("PCMCIA: 5Volt vcc not supported\n");
200 puts("PCMCIA: vcc not supported");
204 /* Checking supported voltages */
206 debug ("PIPR: 0x%x --> %s\n",
208 (pcmp
->pcmc_pipr
& (0x80000000 >> (slot
<< 4)))
209 ? "only 5 V --> NOT SUPPORTED"
213 debug ("Enable PCMCIA buffers and stop RESET\n");
214 reg
= PCMCIA_PGCRX(slot
);
215 reg
&= ~__MY_PCMCIA_GCRX_CXRESET
; /* active high */
216 reg
&= ~__MY_PCMCIA_GCRX_CXOE
; /* active low */
217 PCMCIA_PGCRX(slot
) = reg
;
220 debug ("voltage_set: " PCMCIA_BOARD_MSG
" Slot %c, DONE\n",
225 #endif /* CONFIG_PCMCIA */