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9d407995 WD |
1 | #include <common.h> |
2 | #include <mpc8xx.h> | |
3 | #include <pcmcia.h> | |
4 | ||
5 | #undef CONFIG_PCMCIA | |
6 | ||
ab3abcba | 7 | #if defined(CONFIG_CMD_PCMCIA) |
9d407995 WD |
8 | #define CONFIG_PCMCIA |
9 | #endif | |
10 | ||
ab3abcba | 11 | #if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD) |
9d407995 WD |
12 | #define CONFIG_PCMCIA |
13 | #endif | |
14 | ||
15 | #ifdef CONFIG_PCMCIA | |
16 | ||
17 | #define PCMCIA_BOARD_MSG "R360MPI" | |
18 | ||
19 | int pcmcia_hardware_enable(int slot) | |
20 | { | |
21 | volatile immap_t *immap; | |
22 | volatile cpm8xx_t *cp; | |
23 | volatile pcmconf8xx_t *pcmp; | |
24 | volatile sysconf8xx_t *sysp; | |
25 | uint reg, mask; | |
26 | ||
27 | debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); | |
28 | ||
29 | udelay(10000); | |
30 | ||
31 | immap = (immap_t *)CFG_IMMR; | |
32 | sysp = (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf)); | |
33 | pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); | |
34 | cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm)); | |
35 | ||
36 | /* | |
37 | * Configure SIUMCR to enable PCMCIA port B | |
38 | * (VFLS[0:1] are not used for debugging, we connect FRZ# instead) | |
39 | */ | |
40 | sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */ | |
41 | ||
42 | /* clear interrupt state, and disable interrupts */ | |
43 | pcmp->pcmc_pscr = PCMCIA_MASK(_slot_); | |
44 | pcmp->pcmc_per &= ~PCMCIA_MASK(_slot_); | |
45 | ||
46 | /* | |
47 | * Disable interrupts, DMA, and PCMCIA buffers | |
48 | * (isolate the interface) and assert RESET signal | |
49 | */ | |
50 | debug ("Disable PCMCIA buffers and assert RESET\n"); | |
51 | reg = 0; | |
52 | reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ | |
53 | reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ | |
54 | PCMCIA_PGCRX(_slot_) = reg; | |
55 | udelay(500); | |
56 | ||
57 | /* | |
58 | * Configure Ports A, B & C pins for | |
59 | * 5 Volts Enable and 3 Volts enable | |
60 | */ | |
61 | immap->im_ioport.iop_pcpar &= ~(0x0400); | |
62 | immap->im_ioport.iop_pcso &= ~(0x0400);/* | |
63 | immap->im_ioport.iop_pcdir |= 0x0400;*/ | |
64 | ||
65 | immap->im_ioport.iop_papar &= ~(0x0200);/* | |
66 | immap->im_ioport.iop_padir |= 0x0200;*/ | |
67 | #if 0 | |
68 | immap->im_ioport.iop_pbpar &= ~(0xC000); | |
69 | immap->im_ioport.iop_pbdir &= ~(0xC000); | |
70 | #endif | |
71 | /* remove all power */ | |
72 | ||
73 | immap->im_ioport.iop_pcdat |= 0x0400; | |
74 | immap->im_ioport.iop_padat |= 0x0200; | |
75 | ||
76 | /* | |
77 | * Make sure there is a card in the slot, then configure the interface. | |
78 | */ | |
79 | udelay(10000); | |
80 | debug ("[%d] %s: PIPR(%p)=0x%x\n", | |
81 | __LINE__,__FUNCTION__, | |
82 | &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); | |
83 | if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { | |
84 | printf (" No Card found\n"); | |
85 | return (1); | |
86 | } | |
87 | ||
88 | /* | |
89 | * Power On. | |
90 | */ | |
91 | mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot); | |
92 | reg = pcmp->pcmc_pipr; | |
93 | debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n", | |
94 | reg, | |
95 | (reg&PCMCIA_VS1(slot))?"n":"ff", | |
96 | (reg&PCMCIA_VS2(slot))?"n":"ff"); | |
97 | if ((reg & mask) == mask) { | |
98 | immap->im_ioport.iop_pcdat &= ~(0x4000); | |
99 | puts (" 5.0V card found: "); | |
100 | } else { | |
101 | immap->im_ioport.iop_padat &= ~(0x0002); | |
102 | puts (" 3.3V card found: "); | |
103 | } | |
104 | immap->im_ioport.iop_pcdir |= 0x0400; | |
105 | immap->im_ioport.iop_padir |= 0x0200; | |
106 | #if 0 | |
107 | /* VCC switch error flag, PCMCIA slot INPACK_ pin */ | |
108 | cp->cp_pbdir &= ~(0x0020 | 0x0010); | |
109 | cp->cp_pbpar &= ~(0x0020 | 0x0010); | |
110 | udelay(500000); | |
111 | #endif | |
112 | debug ("Enable PCMCIA buffers and stop RESET\n"); | |
113 | reg = PCMCIA_PGCRX(_slot_); | |
114 | reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */ | |
115 | reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */ | |
116 | PCMCIA_PGCRX(_slot_) = reg; | |
117 | ||
118 | udelay(250000); /* some cards need >150 ms to come up :-( */ | |
119 | ||
120 | debug ("# hardware_enable done\n"); | |
121 | ||
122 | return (0); | |
123 | } | |
124 | ||
125 | ||
ab3abcba | 126 | #if defined(CONFIG_CMD_PCMCIA) |
9d407995 WD |
127 | int pcmcia_hardware_disable(int slot) |
128 | { | |
129 | volatile immap_t *immap; | |
130 | volatile pcmconf8xx_t *pcmp; | |
131 | u_long reg; | |
132 | ||
133 | debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); | |
134 | ||
135 | immap = (immap_t *)CFG_IMMR; | |
136 | pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); | |
137 | ||
138 | /* remove all power */ | |
139 | immap->im_ioport.iop_pcdat |= 0x0400; | |
140 | immap->im_ioport.iop_padat |= 0x0200; | |
141 | ||
142 | /* Configure PCMCIA General Control Register */ | |
143 | debug ("Disable PCMCIA buffers and assert RESET\n"); | |
144 | reg = 0; | |
145 | reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ | |
146 | reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ | |
147 | PCMCIA_PGCRX(_slot_) = reg; | |
148 | ||
149 | udelay(10000); | |
150 | ||
151 | return (0); | |
152 | } | |
d39b5741 | 153 | #endif |
9d407995 WD |
154 | |
155 | ||
156 | int pcmcia_voltage_set(int slot, int vcc, int vpp) | |
157 | { | |
158 | volatile immap_t *immap; | |
159 | volatile pcmconf8xx_t *pcmp; | |
160 | u_long reg; | |
161 | ||
162 | debug ("voltage_set: " | |
163 | PCMCIA_BOARD_MSG | |
164 | " Slot %c, Vcc=%d.%d, Vpp=%d.%d\n", | |
165 | 'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10); | |
166 | ||
167 | immap = (immap_t *)CFG_IMMR; | |
168 | pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); | |
169 | /* | |
170 | * Disable PCMCIA buffers (isolate the interface) | |
171 | * and assert RESET signal | |
172 | */ | |
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; | |
178 | udelay(500); | |
179 | ||
180 | /* | |
181 | * Configure Ports A & C pins for | |
182 | * 5 Volts Enable and 3 Volts enable, | |
183 | * Turn off all power | |
184 | */ | |
185 | debug ("PCMCIA power OFF\n"); | |
186 | immap->im_ioport.iop_pcpar &= ~(0x0400); | |
187 | immap->im_ioport.iop_pcso &= ~(0x0400);/* | |
188 | immap->im_ioport.iop_pcdir |= 0x0400;*/ | |
189 | ||
190 | immap->im_ioport.iop_papar &= ~(0x0200);/* | |
191 | immap->im_ioport.iop_padir |= 0x0200;*/ | |
192 | ||
193 | immap->im_ioport.iop_pcdat |= 0x0400; | |
194 | immap->im_ioport.iop_padat |= 0x0200; | |
195 | ||
196 | reg = 0; | |
197 | switch(vcc) { | |
198 | case 0: break; | |
199 | case 33: reg |= 0x0200; break; | |
200 | case 50: reg |= 0x0400; break; | |
201 | default: goto done; | |
202 | } | |
203 | ||
204 | /* Checking supported voltages */ | |
205 | ||
206 | debug ("PIPR: 0x%x --> %s\n", | |
207 | pcmp->pcmc_pipr, | |
208 | (pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V"); | |
209 | ||
210 | if (reg & 0x0200) | |
211 | immap->im_ioport.iop_pcdat &= !reg; | |
212 | if (reg & 0x0400) | |
213 | immap->im_ioport.iop_padat &= !reg; | |
214 | immap->im_ioport.iop_pcdir |= 0x0200; | |
215 | immap->im_ioport.iop_padir |= 0x0400; | |
216 | if (reg) { | |
217 | debug ("PCMCIA powered at %sV\n", | |
218 | (reg&0x0400) ? "5.0" : "3.3"); | |
219 | } else { | |
220 | debug ("PCMCIA powered down\n"); | |
221 | } | |
222 | ||
223 | done: | |
224 | debug ("Enable PCMCIA buffers and stop RESET\n"); | |
225 | reg = PCMCIA_PGCRX(_slot_); | |
226 | reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */ | |
227 | reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */ | |
228 | PCMCIA_PGCRX(_slot_) = reg; | |
229 | udelay(500); | |
230 | ||
231 | debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n", | |
232 | slot+'A'); | |
233 | return (0); | |
234 | } | |
235 | ||
236 | #endif /* CCONFIG_PCMCIA */ |