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git.ipfire.org Git - people/ms/u-boot.git/blob - drivers/pcmcia/tqm8xx_pcmcia.c
1 /* -------------------------------------------------------------------- */
2 /* TQM8xxL Boards by TQ Components */
3 /* SC8xx Boards by SinoVee Microsystems */
4 /* -------------------------------------------------------------------- */
13 #if defined(CONFIG_CMD_PCMCIA)
17 #if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
21 #if defined(CONFIG_PCMCIA) \
22 && (defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx))
24 #if defined(CONFIG_VIRTLAB2)
25 #define PCMCIA_BOARD_MSG "Virtlab2"
26 #elif defined(CONFIG_TQM8xxL)
27 #define PCMCIA_BOARD_MSG "TQM8xxL"
28 #elif defined(CONFIG_SVM_SC8xx)
29 #define PCMCIA_BOARD_MSG "SC8xx"
32 #if defined(CONFIG_NSCU)
34 #define power_config(slot) do {} while (0)
35 #define power_off(slot) do {} while (0)
36 #define power_on_5_0(slot) do {} while (0)
37 #define power_on_3_3(slot) do {} while (0)
39 #elif defined(CONFIG_HMI10)
41 static inline void power_config(int slot
)
43 volatile immap_t
*immap
= (immap_t
*)CONFIG_SYS_IMMR
;
45 * Configure Port B pins for
46 * 5 Volts Enable and 3 Volts enable
48 immap
->im_cpm
.cp_pbpar
&= ~(0x00000300);
51 static inline void power_off(int slot
)
53 volatile immap_t
*immap
= (immap_t
*)CONFIG_SYS_IMMR
;
54 /* remove all power */
55 immap
->im_cpm
.cp_pbdat
|= 0x00000300;
58 static inline void power_on_5_0(int slot
)
60 volatile immap_t
*immap
= (immap_t
*)CONFIG_SYS_IMMR
;
61 immap
->im_cpm
.cp_pbdat
&= ~(0x0000100);
62 immap
->im_cpm
.cp_pbdir
|= 0x00000300;
65 static inline void power_on_3_3(int slot
)
67 volatile immap_t
*immap
= (immap_t
*)CONFIG_SYS_IMMR
;
68 immap
->im_cpm
.cp_pbdat
&= ~(0x0000200);
69 immap
->im_cpm
.cp_pbdir
|= 0x00000300;
72 #elif defined(CONFIG_VIRTLAB2)
74 #define power_config(slot) do {} while (0)
75 static inline void power_off(int slot
)
77 volatile unsigned char *powerctl
=
78 (volatile unsigned char *)PCMCIA_CTRL
;
82 static inline void power_on_5_0(int slot
)
84 volatile unsigned char *powerctl
=
85 (volatile unsigned char *)PCMCIA_CTRL
;
86 *powerctl
= 2; /* Enable 5V Vccout */
89 static inline void power_on_3_3(int slot
)
91 volatile unsigned char *powerctl
=
92 (volatile unsigned char *)PCMCIA_CTRL
;
93 *powerctl
= 1; /* Enable 3.3V Vccout */
98 static inline void power_config(int slot
)
100 volatile immap_t
*immap
= (immap_t
*)CONFIG_SYS_IMMR
;
102 * Configure Port C pins for
103 * 5 Volts Enable and 3 Volts enable
105 immap
->im_ioport
.iop_pcpar
&= ~(0x0002 | 0x0004);
106 immap
->im_ioport
.iop_pcso
&= ~(0x0002 | 0x0004);
109 static inline void power_off(int slot
)
111 volatile immap_t
*immap
= (immap_t
*)CONFIG_SYS_IMMR
;
112 immap
->im_ioport
.iop_pcdat
&= ~(0x0002 | 0x0004);
115 static inline void power_on_5_0(int slot
)
117 volatile immap_t
*immap
= (immap_t
*)CONFIG_SYS_IMMR
;
118 immap
->im_ioport
.iop_pcdat
|= 0x0004;
119 immap
->im_ioport
.iop_pcdir
|= (0x0002 | 0x0004);
122 static inline void power_on_3_3(int slot
)
124 volatile immap_t
*immap
= (immap_t
*)CONFIG_SYS_IMMR
;
125 immap
->im_ioport
.iop_pcdat
|= 0x0002;
126 immap
->im_ioport
.iop_pcdir
|= (0x0002 | 0x0004);
132 static inline int check_card_is_absent(int slot
)
134 volatile pcmconf8xx_t
*pcmp
=
135 (pcmconf8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_pcmcia
));
136 return pcmp
->pcmc_pipr
& (0x10000000 >> (slot
<< 4));
139 static inline int check_card_is_absent(int slot
)
141 volatile pcmconf8xx_t
*pcmp
=
142 (pcmconf8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_pcmcia
));
143 return pcmp
->pcmc_pipr
& (0x18000000 >> (slot
<< 4));
148 #define NSCU_GCRX_CXOE 0
150 #define NSCU_GCRX_CXOE __MY_PCMCIA_GCRX_CXOE
153 int pcmcia_hardware_enable(int slot
)
155 volatile pcmconf8xx_t
*pcmp
=
156 (pcmconf8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_pcmcia
));
157 volatile sysconf8xx_t
*sysp
=
158 (sysconf8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_siu_conf
));
161 debug ("hardware_enable: " PCMCIA_BOARD_MSG
" Slot %c\n", 'A'+slot
);
166 * Configure SIUMCR to enable PCMCIA port B
167 * (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
169 sysp
->sc_siumcr
&= ~SIUMCR_DBGC11
; /* set DBGC to 00 */
171 /* clear interrupt state, and disable interrupts */
172 pcmp
->pcmc_pscr
= PCMCIA_MASK(slot
);
173 pcmp
->pcmc_per
&= ~PCMCIA_MASK(slot
);
176 * Disable interrupts, DMA, and PCMCIA buffers
177 * (isolate the interface) and assert RESET signal
179 debug ("Disable PCMCIA buffers and assert RESET\n");
181 reg
|= __MY_PCMCIA_GCRX_CXRESET
; /* active high */
182 reg
|= NSCU_GCRX_CXOE
;
184 PCMCIA_PGCRX(slot
) = reg
;
191 * Make sure there is a card in the slot, then configure the interface.
194 debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__
,__FUNCTION__
,
195 &(pcmp
->pcmc_pipr
),pcmp
->pcmc_pipr
);
197 if (check_card_is_absent(slot
)) {
198 printf (" No Card found\n");
205 mask
= PCMCIA_VS1(slot
) | PCMCIA_VS2(slot
);
206 reg
= pcmp
->pcmc_pipr
;
207 debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
209 (reg
&PCMCIA_VS1(slot
))?"n":"ff",
210 (reg
&PCMCIA_VS2(slot
))?"n":"ff");
212 if ((reg
& mask
) == mask
) {
214 puts (" 5.0V card found: ");
217 puts (" 3.3V card found: ");
221 /* VCC switch error flag, PCMCIA slot INPACK_ pin */
222 cp
->cp_pbdir
&= ~(0x0020 | 0x0010);
223 cp
->cp_pbpar
&= ~(0x0020 | 0x0010);
228 debug ("Enable PCMCIA buffers and stop RESET\n");
229 reg
= PCMCIA_PGCRX(slot
);
230 reg
&= ~__MY_PCMCIA_GCRX_CXRESET
; /* active high */
231 reg
|= __MY_PCMCIA_GCRX_CXOE
; /* active low */
232 reg
&= ~NSCU_GCRX_CXOE
;
234 PCMCIA_PGCRX(slot
) = reg
;
236 udelay(250000); /* some cards need >150 ms to come up :-( */
238 debug ("# hardware_enable done\n");
244 #if defined(CONFIG_CMD_PCMCIA)
245 int pcmcia_hardware_disable(int slot
)
249 debug ("hardware_disable: " PCMCIA_BOARD_MSG
" Slot %c\n", 'A'+slot
);
252 /* remove all power */
255 debug ("Disable PCMCIA buffers and assert RESET\n");
257 reg
|= __MY_PCMCIA_GCRX_CXRESET
; /* active high */
258 reg
|= NSCU_GCRX_CXOE
; /* active low */
260 PCMCIA_PGCRX(slot
) = reg
;
268 int pcmcia_voltage_set(int slot
, int vcc
, int vpp
)
273 volatile pcmconf8xx_t
*pcmp
=
274 (pcmconf8xx_t
*)(&(((immap_t
*)CONFIG_SYS_IMMR
)->im_pcmcia
));
277 debug ("voltage_set: " PCMCIA_BOARD_MSG
278 " Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
279 'A'+slot
, vcc
/10, vcc
%10, vpp
/10, vcc
%10);
282 * Disable PCMCIA buffers (isolate the interface)
283 * and assert RESET signal
285 debug ("Disable PCMCIA buffers and assert RESET\n");
286 reg
= PCMCIA_PGCRX(slot
);
287 reg
|= __MY_PCMCIA_GCRX_CXRESET
; /* active high */
288 reg
&= ~__MY_PCMCIA_GCRX_CXOE
; /* active low */
289 reg
|= NSCU_GCRX_CXOE
; /* active low */
291 PCMCIA_PGCRX(slot
) = reg
;
294 debug ("PCMCIA power OFF\n");
300 case 33: power_on_3_3(slot
); break;
301 case 50: power_on_5_0(slot
); break;
305 /* Checking supported voltages */
307 debug("PIPR: 0x%x --> %s\n", pcmp
->pcmc_pipr
,
308 (pcmp
->pcmc_pipr
& 0x00008000) ? "only 5 V" : "can do 3.3V");
311 debug("PCMCIA powered at %sV\n", (vcc
== 50) ? "5.0" : "3.3");
313 debug("PCMCIA powered down\n");
316 debug("Enable PCMCIA buffers and stop RESET\n");
317 reg
= PCMCIA_PGCRX(slot
);
318 reg
&= ~__MY_PCMCIA_GCRX_CXRESET
; /* active high */
319 reg
|= __MY_PCMCIA_GCRX_CXOE
; /* active low */
320 reg
&= ~NSCU_GCRX_CXOE
; /* active low */
322 PCMCIA_PGCRX(slot
) = reg
;
325 debug("voltage_set: " PCMCIA_BOARD_MSG
" Slot %c, DONE\n", slot
+'A');
326 #endif /* CONFIG_NSCU */
330 #endif /* CONFIG_PCMCIA && (CONFIG_TQM8xxL || CONFIG_SVM_SC8xx) */