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Disabled kvme080 board in MAKEALL because of build problems.
[people/ms/u-boot.git] / drivers / tqm8xx_pcmcia.c
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9d407995
WD		 1/* -------------------------------------------------------------------- */
2/* TQM8xxL Boards by TQ Components */
3/* SC8xx Boards by SinoVee Microsystems */
4/* -------------------------------------------------------------------- */
5#include <common.h>
6#include <mpc8xx.h>
7#include <pcmcia.h>
8
9#undef CONFIG_PCMCIA
10
11#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
12#define CONFIG_PCMCIA
13#endif
14
15#if (CONFIG_COMMANDS & CFG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
16#define CONFIG_PCMCIA
17#endif
18
19#if defined(CONFIG_PCMCIA) \
20 && (defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx))
21
22#if defined(CONFIG_VIRTLAB2)
23#define PCMCIA_BOARD_MSG "Virtlab2"
24#elif defined(CONFIG_TQM8xxL)
25#define PCMCIA_BOARD_MSG "TQM8xxL"
26#elif defined(CONFIG_SVM_SC8xx)
27#define PCMCIA_BOARD_MSG "SC8xx"
28#endif
29
30#if defined(CONFIG_NSCU)
31
32#define power_config(slot) do {} while (0)
33#define power_off(slot) do {} while (0)
34#define power_on_5_0(slot) do {} while (0)
35#define power_on_3_3(slot) do {} while (0)
36
37#elif defined(CONFIG_HMI10)
38
39static inline void power_config(int slot)
40{
41 volatile immap_t *immap = (immap_t *)CFG_IMMR;
42 /*
43 * Configure Port B pins for
44 * 5 Volts Enable and 3 Volts enable
45 */
46 immap->im_cpm.cp_pbpar &= ~(0x00000300);
47}
48
49static inline void power_off(int slot)
50{
51 volatile immap_t *immap = (immap_t *)CFG_IMMR;
52 /* remove all power */
53 immap->im_cpm.cp_pbdat |= 0x00000300;
54}
55
56static inline void power_on_5_0(int slot)
57{
58 volatile immap_t *immap = (immap_t *)CFG_IMMR;
59 immap->im_cpm.cp_pbdat &= ~(0x0000100);
60 immap->im_cpm.cp_pbdir |= 0x00000300;
61}
62
63static inline void power_on_3_3(int slot)
64{
65 volatile immap_t *immap = (immap_t *)CFG_IMMR;
66 immap->im_cpm.cp_pbdat &= ~(0x0000200);
67 immap->im_cpm.cp_pbdir |= 0x00000300;
68}
69
70#elif defined(CONFIG_VIRTLAB2)
71
72#define power_config(slot) do {} while (0)
73static inline void power_off(int slot)
74{
75 volatile unsigned char *powerctl =
76 (volatile unsigned char *)PCMCIA_CTRL;
77 *powerctl = 0;
78}
79
80static inline void power_on_5_0(int slot)
81{
82 volatile unsigned char *powerctl =
83 (volatile unsigned char *)PCMCIA_CTRL;
84 *powerctl = 2; /* Enable 5V Vccout */
85}
86
87static inline void power_on_3_3(int slot)
88{
89 volatile unsigned char *powerctl =
90 (volatile unsigned char *)PCMCIA_CTRL;
91 *powerctl = 1; /* Enable 3.3V Vccout */
92}
93
94#else
95
96static inline void power_config(int slot)
97{
98 volatile immap_t *immap = (immap_t *)CFG_IMMR;
99 /*
100 * Configure Port C pins for
101 * 5 Volts Enable and 3 Volts enable
102 */
103 immap->im_ioport.iop_pcpar &= ~(0x0002 | 0x0004);
104 immap->im_ioport.iop_pcso &= ~(0x0002 | 0x0004);
105}
106
107static inline void power_off(int slot)
108{
109 volatile immap_t *immap = (immap_t *)CFG_IMMR;
110 immap->im_ioport.iop_pcdat &= ~(0x0002 | 0x0004);
111}
112
113static inline void power_on_5_0(int slot)
114{
115 volatile immap_t *immap = (immap_t *)CFG_IMMR;
116 immap->im_ioport.iop_pcdat |= 0x0004;
117 immap->im_ioport.iop_pcdir |= (0x0002 | 0x0004);
118}
119
120static inline void power_on_3_3(int slot)
121{
122 volatile immap_t *immap = (immap_t *)CFG_IMMR;
123 immap->im_ioport.iop_pcdat |= 0x0002;
124 immap->im_ioport.iop_pcdir |= (0x0002 | 0x0004);
125}
126
127#endif
128
129#ifdef CONFIG_HMI10
130static inline int check_card_is_absent(int slot)
131{
132 volatile pcmconf8xx_t *pcmp =
133 (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
134 return pcmp->pcmc_pipr & (0x10000000 >> (slot << 4));
135}
136#else
137static inline int check_card_is_absent(int slot)
138{
139 volatile pcmconf8xx_t *pcmp =
140 (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
141 return pcmp->pcmc_pipr & (0x18000000 >> (slot << 4));
142}
143#endif
144
145#ifdef NSCU_OE_INV
146#define NSCU_GCRX_CXOE 0
147#else
148#define NSCU_GCRX_CXOE __MY_PCMCIA_GCRX_CXOE
149#endif
150
151int pcmcia_hardware_enable(int slot)
152{
153 volatile pcmconf8xx_t *pcmp =
154 (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
155 volatile sysconf8xx_t *sysp =
156 (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf));
157 uint reg, mask;
158
159 debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
160
161 udelay(10000);
162
163 /*
164 * Configure SIUMCR to enable PCMCIA port B
165 * (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
166 */
167 sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */
168
169 /* clear interrupt state, and disable interrupts */
170 pcmp->pcmc_pscr = PCMCIA_MASK(slot);
171 pcmp->pcmc_per &= ~PCMCIA_MASK(slot);
172
173 /*
174 * Disable interrupts, DMA, and PCMCIA buffers
175 * (isolate the interface) and assert RESET signal
176 */
177 debug ("Disable PCMCIA buffers and assert RESET\n");
178 reg = 0;
179 reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
180 reg |= NSCU_GCRX_CXOE;
181
182 PCMCIA_PGCRX(slot) = reg;
183 udelay(500);
184
185 power_config(slot);
186 power_off(slot);
187
188 /*
189 * Make sure there is a card in the slot, then configure the interface.
190 */
191 udelay(10000);
192 debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__,__FUNCTION__,
193 &(pcmp->pcmc_pipr),pcmp->pcmc_pipr);
b87dfd28 194
9d407995
WD		 195 if (check_card_is_absent(slot)) {
196 printf (" No Card found\n");
197 return (1);
198 }
199
200 /*
201 * Power On.
202 */
203 mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
204 reg = pcmp->pcmc_pipr;
205 debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
206 reg,
207 (reg&PCMCIA_VS1(slot))?"n":"ff",
208 (reg&PCMCIA_VS2(slot))?"n":"ff");
b87dfd28 209
9d407995
WD		 210 if ((reg & mask) == mask) {
211 power_on_5_0(slot);
212 puts (" 5.0V card found: ");
213 } else {
214 power_on_3_3(slot);
215 puts (" 3.3V card found: ");
216 }
217
218#if 0
219 /* VCC switch error flag, PCMCIA slot INPACK_ pin */
220 cp->cp_pbdir &= ~(0x0020 | 0x0010);
221 cp->cp_pbpar &= ~(0x0020 | 0x0010);
222 udelay(500000);
223#endif
224
225 udelay(1000);
226 debug ("Enable PCMCIA buffers and stop RESET\n");
227 reg = PCMCIA_PGCRX(slot);
228 reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
229 reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
230 reg &= ~NSCU_GCRX_CXOE;
b87dfd28 231
9d407995
WD		 232 PCMCIA_PGCRX(slot) = reg;
233
234 udelay(250000); /* some cards need >150 ms to come up :-( */
235
236 debug ("# hardware_enable done\n");
237
238 return (0);
239}
240
241
242#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
243int pcmcia_hardware_disable(int slot)
244{
245 volatile pcmconf8xx_t *pcmp =
246 (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
247 u_long reg;
248
249 debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
250
251
252 /* remove all power */
253 power_off(slot);
254
255 debug ("Disable PCMCIA buffers and assert RESET\n");
256 reg = 0;
257 reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
258 reg |= NSCU_GCRX_CXOE; /* active low */
259
260 PCMCIA_PGCRX(slot) = reg;
261
262 udelay(10000);
263
264 return (0);
265}
266#endif /* CFG_CMD_PCMCIA */
267
268int pcmcia_voltage_set(int slot, int vcc, int vpp)
269{
270#ifndef CONFIG_NSCU
271 volatile pcmconf8xx_t *pcmp =
272 (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
273 u_long reg;
274
275 debug ("voltage_set: " PCMCIA_BOARD_MSG
276 " Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
277 'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);
278
279 /*
280 * Disable PCMCIA buffers (isolate the interface)
281 * and assert RESET signal
282 */
283 debug ("Disable PCMCIA buffers and assert RESET\n");
284 reg = PCMCIA_PGCRX(slot);
285 reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
286 reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
287 reg |= NSCU_GCRX_CXOE; /* active low */
b87dfd28 288
9d407995
WD		 289 PCMCIA_PGCRX(slot) = reg;
290 udelay(500);
291
292 debug ("PCMCIA power OFF\n");
293 power_config(slot);
294 power_off(slot);
295
296 switch(vcc) {
297 case 0: break;
298 case 33: power_on_3_3(slot); break;
299 case 50: power_on_5_0(slot); break;
300 default: goto done;
301 }
302
303 /* Checking supported voltages */
304
305 debug("PIPR: 0x%x --> %s\n", pcmp->pcmc_pipr,
306 (pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");
307
308 if (vcc)
309 debug("PCMCIA powered at %sV\n", (vcc == 50) ? "5.0" : "3.3");
310 else
311 debug("PCMCIA powered down\n");
312
313done:
314 debug("Enable PCMCIA buffers and stop RESET\n");
315 reg = PCMCIA_PGCRX(slot);
316 reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
317 reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
318 reg &= ~NSCU_GCRX_CXOE; /* active low */
319
320 PCMCIA_PGCRX(slot) = reg;
321 udelay(500);
322
323 debug("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n", slot+'A');
324#endif /* CONFIG_NSCU */
325 return (0);
326}
327
328#endif /* CONFIG_PCMCIA && (CONFIG_TQM8xxL || CONFIG_SVM_SC8xx) */
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