7 #if defined(CONFIG_CMD_PCMCIA)
11 #if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
15 #if defined(CONFIG_PCMCIA)
17 #if defined(CONFIG_IDE_8xx_PCCARD)
18 extern int check_ide_device (int slot);
21 extern int pcmcia_hardware_enable (int slot);
22 extern int pcmcia_voltage_set(int slot, int vcc, int vpp);
24 #if defined(CONFIG_CMD_PCMCIA)
25 extern int pcmcia_hardware_disable(int slot);
28 static u_int m8xx_get_graycode(u_int size);
30 static u_int m8xx_get_speed(u_int ns, u_int is_io);
33 /* look up table for pgcrx registers */
34 u_int *pcmcia_pgcrx[2] = {
35 &((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcra,
36 &((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb,
40 * Search this table to see if the windowsize is
44 #define M8XX_SIZES_NO 32
46 static const u_int m8xx_size_to_gray[M8XX_SIZES_NO] =
47 { 0x00000001, 0x00000002, 0x00000008, 0x00000004,
48 0x00000080, 0x00000040, 0x00000010, 0x00000020,
49 0x00008000, 0x00004000, 0x00001000, 0x00002000,
50 0x00000100, 0x00000200, 0x00000800, 0x00000400,
52 0x0fffffff, 0xffffffff, 0xffffffff, 0xffffffff,
53 0x01000000, 0x02000000, 0xffffffff, 0x04000000,
54 0x00010000, 0x00020000, 0x00080000, 0x00040000,
55 0x00800000, 0x00400000, 0x00100000, 0x00200000 };
58 /* -------------------------------------------------------------------- */
60 #if defined(CONFIG_LWMON) || defined(CONFIG_NSCU)
61 #define CONFIG_SYS_PCMCIA_TIMING ( PCMCIA_SHT(9) \
65 #define CONFIG_SYS_PCMCIA_TIMING ( PCMCIA_SHT(2) \
70 /* -------------------------------------------------------------------- */
80 debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
82 /* intialize the fixed memory windows */
83 win = (pcmcia_win_t *)(&((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pbr0);
84 base = CONFIG_SYS_PCMCIA_MEM_ADDR;
86 if((reg = m8xx_get_graycode(CONFIG_SYS_PCMCIA_MEM_SIZE)) == -1) {
87 printf ("Cannot set window size to 0x%08x\n",
88 CONFIG_SYS_PCMCIA_MEM_SIZE);
92 slotbit = PCMCIA_SLOT_x;
93 for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) {
96 #if (PCMCIA_SOCKETS_NO == 2)
97 if (i == 4) /* Another slot starting from win 4 */
98 slotbit = (slotbit ? PCMCIA_PSLOT_A : PCMCIA_PSLOT_B);
101 #ifdef CONFIG_IDE_8xx_PCCARD
103 case 0: { /* map attribute memory */
104 win->or = ( PCMCIA_BSIZE_64M
109 | CONFIG_SYS_PCMCIA_TIMING );
113 case 1: { /* map I/O window for data reg */
114 win->or = ( PCMCIA_BSIZE_1K
119 | CONFIG_SYS_PCMCIA_TIMING );
123 case 2: { /* map I/O window for cmd/ctrl reg block */
124 win->or = ( PCMCIA_BSIZE_1K
129 | CONFIG_SYS_PCMCIA_TIMING );
132 #endif /* CONFIG_IDE_8xx_PCCARD */
133 default: /* set to not valid */
138 debug ("MemWin %d: PBR 0x%08lX POR %08lX\n",
139 i, win->br, win->or);
140 base += CONFIG_SYS_PCMCIA_MEM_SIZE;
144 for (i=0, rc=0, slot=_slot_; i<PCMCIA_SOCKETS_NO; i++, slot = !slot) {
145 /* turn off voltage */
146 if ((rc = pcmcia_voltage_set(slot, 0, 0)))
149 /* Enable external hardware */
150 if ((rc = pcmcia_hardware_enable(slot)))
153 #ifdef CONFIG_IDE_8xx_PCCARD
154 if ((rc = check_ide_device(i)))
161 #if defined(CONFIG_CMD_PCMCIA)
162 int pcmcia_off (void)
167 printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
169 /* clear interrupt state, and disable interrupts */
170 ((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pscr = PCMCIA_MASK(_slot_);
171 ((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_per &= ~PCMCIA_MASK(_slot_);
173 /* turn off interrupt and disable CxOE */
174 PCMCIA_PGCRX(_slot_) = __MY_PCMCIA_GCRX_CXOE;
176 /* turn off memory windows */
177 win = (pcmcia_win_t *)(&((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pbr0);
179 for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) {
180 /* disable memory window */
185 /* turn off voltage */
186 pcmcia_voltage_set(_slot_, 0, 0);
188 /* disable external hardware */
189 printf ("Shutdown and Poweroff " PCMCIA_SLOT_MSG "\n");
190 pcmcia_hardware_disable(_slot_);
196 static u_int m8xx_get_graycode(u_int size)
200 for (k = 0; k < M8XX_SIZES_NO; k++) {
201 if(m8xx_size_to_gray[k] == size)
205 if((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1))
213 #if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)
215 /* The RPX boards seems to have it's bus monitor timeout set to 6*8 clocks.
216 * SYPCR is write once only, therefore must the slowest memory be faster
217 * than the bus monitor or we will get a machine check due to the bus timeout.
219 #undef PCMCIA_BMT_LIMIT
220 #define PCMCIA_BMT_LIMIT (6*8)
223 static u_int m8xx_get_speed(u_int ns, u_int is_io)
225 u_int reg, clocks, psst, psl, psht;
230 * We get called with IO maps setup to 0ns
231 * if not specified by the user.
232 * They should be 255ns.
238 ns = 100; /* fast memory if 0 */
242 * In PSST, PSL, PSHT fields we tell the controller
243 * timing parameters in CLKOUT clock cycles.
244 * CLKOUT is the same as GCLK2_50.
247 /* how we want to adjust the timing - in percent */
249 #define ADJ 180 /* 80 % longer accesstime - to be sure */
251 clocks = ((M8XX_BUSFREQ / 1000) * ns) / 1000;
252 clocks = (clocks * ADJ) / (100*1000);
254 if(clocks >= PCMCIA_BMT_LIMIT) {
255 DEBUG(0, "Max access time limit reached\n");
256 clocks = PCMCIA_BMT_LIMIT-1;
259 psst = clocks / 7; /* setup time */
260 psht = clocks / 7; /* hold time */
261 psl = (clocks * 5) / 7; /* strobe length */
263 psst += clocks - (psst + psht + psl);
273 #endif /* CONFIG_PCMCIA */