2 #if defined(CONFIG_8xx)
9 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
13 #if (CONFIG_COMMANDS & CFG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
17 #if defined(CONFIG_8xx) && defined(CONFIG_PCMCIA)
19 #if defined(CONFIG_IDE_8xx_PCCARD)
20 extern int check_ide_device (int slot);
23 extern int pcmcia_hardware_enable (int slot);
24 extern int pcmcia_voltage_set(int slot, int vcc, int vpp);
26 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
27 extern int pcmcia_hardware_disable(int slot);
30 static u_int m8xx_get_graycode(u_int size);
32 static u_int m8xx_get_speed(u_int ns, u_int is_io);
35 /* look up table for pgcrx registers */
36 u_int *pcmcia_pgcrx[2] = {
37 &((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcra,
38 &((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb,
42 * Search this table to see if the windowsize is
46 #define M8XX_SIZES_NO 32
48 static const u_int m8xx_size_to_gray[M8XX_SIZES_NO] =
49 { 0x00000001, 0x00000002, 0x00000008, 0x00000004,
50 0x00000080, 0x00000040, 0x00000010, 0x00000020,
51 0x00008000, 0x00004000, 0x00001000, 0x00002000,
52 0x00000100, 0x00000200, 0x00000800, 0x00000400,
54 0x0fffffff, 0xffffffff, 0xffffffff, 0xffffffff,
55 0x01000000, 0x02000000, 0xffffffff, 0x04000000,
56 0x00010000, 0x00020000, 0x00080000, 0x00040000,
57 0x00800000, 0x00400000, 0x00100000, 0x00200000 };
60 /* -------------------------------------------------------------------- */
63 #define HMI10_FRAM_TIMING ( PCMCIA_SHT(2) \
68 #if defined(CONFIG_LWMON) || defined(CONFIG_NSCU)
69 #define CFG_PCMCIA_TIMING ( PCMCIA_SHT(9) \
73 #define CFG_PCMCIA_TIMING ( PCMCIA_SHT(2) \
78 /* -------------------------------------------------------------------- */
88 debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
90 /* intialize the fixed memory windows */
91 win = (pcmcia_win_t *)(&((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pbr0);
92 base = CFG_PCMCIA_MEM_ADDR;
94 if((reg = m8xx_get_graycode(CFG_PCMCIA_MEM_SIZE)) == -1) {
95 printf ("Cannot set window size to 0x%08x\n",
100 slotbit = PCMCIA_SLOT_x;
101 for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) {
104 #if (PCMCIA_SOCKETS_NO == 2)
105 if (i == 4) /* Another slot starting from win 4 */
106 slotbit = (slotbit ? PCMCIA_PSLOT_A : PCMCIA_PSLOT_B);
109 #ifdef CONFIG_IDE_8xx_PCCARD
112 { /* map FRAM area */
113 win->or = ( PCMCIA_BSIZE_256K
118 | HMI10_FRAM_TIMING );
122 case 0: { /* map attribute memory */
123 win->or = ( PCMCIA_BSIZE_64M
128 | CFG_PCMCIA_TIMING );
132 case 1: { /* map I/O window for data reg */
133 win->or = ( PCMCIA_BSIZE_1K
138 | CFG_PCMCIA_TIMING );
142 case 2: { /* map I/O window for cmd/ctrl reg block */
143 win->or = ( PCMCIA_BSIZE_1K
148 | CFG_PCMCIA_TIMING );
151 #endif /* CONFIG_IDE_8xx_PCCARD */
153 case 3: { /* map I/O window for 4xUART data/ctrl */
155 win->or = ( PCMCIA_BSIZE_256K
160 | CFG_PCMCIA_TIMING );
163 #endif /* CONFIG_HMI10 */
164 default: /* set to not valid */
169 debug ("MemWin %d: PBR 0x%08lX POR %08lX\n",
170 i, win->br, win->or);
171 base += CFG_PCMCIA_MEM_SIZE;
175 for (i=0, rc=0, slot=_slot_; i<PCMCIA_SOCKETS_NO; i++, slot = !slot) {
176 /* turn off voltage */
177 if ((rc = pcmcia_voltage_set(slot, 0, 0)))
180 /* Enable external hardware */
181 if ((rc = pcmcia_hardware_enable(slot)))
184 #ifdef CONFIG_IDE_8xx_PCCARD
185 if ((rc = check_ide_device(i)))
192 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
193 int pcmcia_off (void)
198 printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
200 /* clear interrupt state, and disable interrupts */
201 ((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pscr = PCMCIA_MASK(_slot_);
202 ((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_per &= ~PCMCIA_MASK(_slot_);
204 /* turn off interrupt and disable CxOE */
205 PCMCIA_PGCRX(_slot_) = __MY_PCMCIA_GCRX_CXOE;
207 /* turn off memory windows */
208 win = (pcmcia_win_t *)(&((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pbr0);
210 for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) {
211 /* disable memory window */
216 /* turn off voltage */
217 pcmcia_voltage_set(_slot_, 0, 0);
219 /* disable external hardware */
220 printf ("Shutdown and Poweroff " PCMCIA_SLOT_MSG "\n");
221 pcmcia_hardware_disable(_slot_);
224 #endif /* CFG_CMD_PCMCIA */
227 static u_int m8xx_get_graycode(u_int size)
231 for (k = 0; k < M8XX_SIZES_NO; k++) {
232 if(m8xx_size_to_gray[k] == size)
236 if((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1))
244 #if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)
246 /* The RPX boards seems to have it's bus monitor timeout set to 6*8 clocks.
247 * SYPCR is write once only, therefore must the slowest memory be faster
248 * than the bus monitor or we will get a machine check due to the bus timeout.
250 #undef PCMCIA_BMT_LIMIT
251 #define PCMCIA_BMT_LIMIT (6*8)
254 static u_int m8xx_get_speed(u_int ns, u_int is_io)
256 u_int reg, clocks, psst, psl, psht;
261 * We get called with IO maps setup to 0ns
262 * if not specified by the user.
263 * They should be 255ns.
269 ns = 100; /* fast memory if 0 */
273 * In PSST, PSL, PSHT fields we tell the controller
274 * timing parameters in CLKOUT clock cycles.
275 * CLKOUT is the same as GCLK2_50.
278 /* how we want to adjust the timing - in percent */
280 #define ADJ 180 /* 80 % longer accesstime - to be sure */
282 clocks = ((M8XX_BUSFREQ / 1000) * ns) / 1000;
283 clocks = (clocks * ADJ) / (100*1000);
285 if(clocks >= PCMCIA_BMT_LIMIT) {
286 DEBUG(0, "Max access time limit reached\n");
287 clocks = PCMCIA_BMT_LIMIT-1;
290 psst = clocks / 7; /* setup time */
291 psht = clocks / 7; /* hold time */
292 psl = (clocks * 5) / 7; /* strobe length */
294 psst += clocks - (psst + psht + psl);
304 #endif /* CONFIG_8xx && CONFIG_PCMCIA */