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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 "UC100" | |
18 | ||
19 | /* | |
20 | * Remark: don't turn off OE "__MY_PCMCIA_GCRX_CXOE" on UC100 board. | |
21 | * This leads to board-hangup! (sr, 8 Dez. 2004) | |
22 | */ | |
23 | static void cfg_ports (void) | |
24 | { | |
25 | volatile immap_t *immap; | |
26 | ||
6d0f6bcf | 27 | immap = (immap_t *)CONFIG_SYS_IMMR; |
9d407995 WD |
28 | |
29 | /* | |
30 | * Configure Port A for MAX1602 PC-Card Power-Interface Switch | |
31 | */ | |
32 | immap->im_ioport.iop_padat &= ~0x8000; /* set port x output to low */ | |
33 | immap->im_ioport.iop_padir |= 0x8000; /* enable port x as output */ | |
34 | ||
35 | debug ("Set Port A: PAR: %08x DIR: %08x DAT: %08x\n", | |
36 | immap->im_ioport.iop_papar, immap->im_ioport.iop_padir, | |
37 | immap->im_ioport.iop_padat); | |
38 | } | |
39 | ||
40 | int pcmcia_hardware_enable(int slot) | |
41 | { | |
42 | volatile immap_t *immap; | |
43 | volatile cpm8xx_t *cp; | |
44 | volatile pcmconf8xx_t *pcmp; | |
45 | volatile sysconf8xx_t *sysp; | |
46 | uint reg, mask; | |
47 | ||
48 | debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); | |
49 | ||
50 | udelay(10000); | |
51 | ||
6d0f6bcf JCPV |
52 | immap = (immap_t *)CONFIG_SYS_IMMR; |
53 | sysp = (sysconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_siu_conf)); | |
54 | pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia)); | |
55 | cp = (cpm8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_cpm)); | |
9d407995 WD |
56 | |
57 | /* Configure Ports for TPS2211A PC-Card Power-Interface Switch */ | |
58 | cfg_ports (); | |
59 | ||
60 | /* | |
61 | * Configure SIUMCR to enable PCMCIA port B | |
62 | * (VFLS[0:1] are not used for debugging, we connect FRZ# instead) | |
63 | */ | |
64 | sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */ | |
65 | ||
66 | /* clear interrupt state, and disable interrupts */ | |
67 | pcmp->pcmc_pscr = PCMCIA_MASK(_slot_); | |
68 | pcmp->pcmc_per &= ~PCMCIA_MASK(_slot_); | |
69 | ||
70 | /* | |
71 | * Disable interrupts, DMA, and PCMCIA buffers | |
72 | * (isolate the interface) and assert RESET signal | |
73 | */ | |
74 | debug ("Disable PCMCIA buffers and assert RESET\n"); | |
75 | reg = 0; | |
76 | reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ | |
77 | PCMCIA_PGCRX(_slot_) = reg; | |
78 | udelay(500); | |
79 | ||
80 | /* | |
81 | * Make sure there is a card in the slot, then configure the interface. | |
82 | */ | |
83 | udelay(10000); | |
84 | debug ("[%d] %s: PIPR(%p)=0x%x\n", | |
85 | __LINE__,__FUNCTION__, | |
86 | &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); | |
87 | if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { | |
88 | printf (" No Card found\n"); | |
89 | return (1); | |
90 | } | |
91 | ||
92 | /* | |
93 | * Power On. | |
94 | */ | |
95 | mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot); | |
96 | reg = pcmp->pcmc_pipr; | |
97 | debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n", | |
98 | reg, | |
99 | (reg&PCMCIA_VS1(slot))?"n":"ff", | |
100 | (reg&PCMCIA_VS2(slot))?"n":"ff"); | |
101 | if ((reg & mask) == mask) { | |
102 | puts (" 5.0V card found: "); | |
103 | } else { | |
104 | puts (" 3.3V card found: "); | |
105 | } | |
106 | ||
107 | /* switch VCC on */ | |
108 | immap->im_ioport.iop_padat |= 0x8000; /* power enable 3.3V */ | |
109 | ||
110 | udelay(10000); | |
111 | ||
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 cpm8xx_t *cp; | |
131 | volatile pcmconf8xx_t *pcmp; | |
132 | u_long reg; | |
133 | ||
134 | debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); | |
135 | ||
6d0f6bcf JCPV |
136 | immap = (immap_t *)CONFIG_SYS_IMMR; |
137 | pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia)); | |
9d407995 WD |
138 | |
139 | /* switch VCC off */ | |
140 | immap->im_ioport.iop_padat &= ~0x8000; /* power disable 3.3V */ | |
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 | PCMCIA_PGCRX(_slot_) = reg; | |
147 | ||
148 | udelay(10000); | |
149 | ||
150 | return (0); | |
151 | } | |
d39b5741 | 152 | #endif |
9d407995 WD |
153 | |
154 | ||
155 | int pcmcia_voltage_set(int slot, int vcc, int vpp) | |
156 | { | |
157 | volatile immap_t *immap; | |
158 | volatile pcmconf8xx_t *pcmp; | |
159 | u_long reg; | |
160 | ||
161 | debug ("voltage_set: " | |
162 | PCMCIA_BOARD_MSG | |
163 | " Slot %c, Vcc=%d.%d, Vpp=%d.%d\n", | |
164 | 'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10); | |
165 | ||
6d0f6bcf JCPV |
166 | immap = (immap_t *)CONFIG_SYS_IMMR; |
167 | pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia)); | |
9d407995 WD |
168 | /* |
169 | * Disable PCMCIA buffers (isolate the interface) | |
170 | * and assert RESET signal | |
171 | */ | |
172 | debug ("Disable PCMCIA buffers and assert RESET\n"); | |
173 | reg = PCMCIA_PGCRX(_slot_); | |
174 | reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ | |
175 | PCMCIA_PGCRX(_slot_) = reg; | |
176 | udelay(500); | |
177 | ||
178 | /* | |
179 | * Configure Port C pins for | |
180 | * 5 Volts Enable and 3 Volts enable, | |
181 | * Turn all power pins to Hi-Z | |
182 | */ | |
183 | debug ("PCMCIA power OFF\n"); | |
184 | cfg_ports (); /* Enables switch, but all in Hi-Z */ | |
185 | ||
186 | debug ("Enable PCMCIA buffers and stop RESET\n"); | |
187 | reg = PCMCIA_PGCRX(_slot_); | |
188 | reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */ | |
189 | reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */ | |
190 | PCMCIA_PGCRX(_slot_) = reg; | |
191 | udelay(500); | |
192 | ||
193 | debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n", | |
194 | slot+'A'); | |
195 | return (0); | |
196 | } | |
197 | ||
198 | #endif /* CONFIG_PCMCIA */ |