7
#if defined(CONFIG_CMD_PCMCIA)
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#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
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#if defined(CONFIG_PCMCIA)
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#if defined(CONFIG_IDE_8xx_PCCARD)
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extern int check_ide_device (int slot);
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extern int pcmcia_hardware_enable (int slot);
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extern int pcmcia_voltage_set(int slot, int vcc, int vpp);
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#if defined(CONFIG_CMD_PCMCIA)
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extern int pcmcia_hardware_disable(int slot);
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static u_int m8xx_get_graycode(u_int size);
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static u_int m8xx_get_speed(u_int ns, u_int is_io);
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/* look up table for pgcrx registers */
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u_int *pcmcia_pgcrx[2] = {
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&((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcra,
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&((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb,
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* Search this table to see if the windowsize is
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#define M8XX_SIZES_NO 32
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static const u_int m8xx_size_to_gray[M8XX_SIZES_NO] =
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{ 0x00000001, 0x00000002, 0x00000008, 0x00000004,
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0x00000080, 0x00000040, 0x00000010, 0x00000020,
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0x00008000, 0x00004000, 0x00001000, 0x00002000,
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0x00000100, 0x00000200, 0x00000800, 0x00000400,
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0x0fffffff, 0xffffffff, 0xffffffff, 0xffffffff,
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0x01000000, 0x02000000, 0xffffffff, 0x04000000,
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0x00010000, 0x00020000, 0x00080000, 0x00040000,
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0x00800000, 0x00400000, 0x00100000, 0x00200000 };
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/* -------------------------------------------------------------------- */
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#define HMI10_FRAM_TIMING ( PCMCIA_SHT(2) \
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#if defined(CONFIG_LWMON) || defined(CONFIG_NSCU)
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#define CONFIG_SYS_PCMCIA_TIMING ( PCMCIA_SHT(9) \
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#define CONFIG_SYS_PCMCIA_TIMING ( PCMCIA_SHT(2) \
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/* -------------------------------------------------------------------- */
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debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
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/* intialize the fixed memory windows */
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win = (pcmcia_win_t *)(&((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pbr0);
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base = CONFIG_SYS_PCMCIA_MEM_ADDR;
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if((reg = m8xx_get_graycode(CONFIG_SYS_PCMCIA_MEM_SIZE)) == -1) {
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printf ("Cannot set window size to 0x%08x\n",
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CONFIG_SYS_PCMCIA_MEM_SIZE);
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slotbit = PCMCIA_SLOT_x;
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for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) {
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#if (PCMCIA_SOCKETS_NO == 2)
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if (i == 4) /* Another slot starting from win 4 */
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slotbit = (slotbit ? PCMCIA_PSLOT_A : PCMCIA_PSLOT_B);
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#ifdef CONFIG_IDE_8xx_PCCARD
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{ /* map FRAM area */
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win->or = ( PCMCIA_BSIZE_256K
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| HMI10_FRAM_TIMING );
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case 0: { /* map attribute memory */
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win->or = ( PCMCIA_BSIZE_64M
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| CONFIG_SYS_PCMCIA_TIMING );
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case 1: { /* map I/O window for data reg */
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win->or = ( PCMCIA_BSIZE_1K
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| CONFIG_SYS_PCMCIA_TIMING );
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case 2: { /* map I/O window for cmd/ctrl reg block */
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win->or = ( PCMCIA_BSIZE_1K
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| CONFIG_SYS_PCMCIA_TIMING );
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#endif /* CONFIG_IDE_8xx_PCCARD */
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case 3: { /* map I/O window for 4xUART data/ctrl */
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win->or = ( PCMCIA_BSIZE_256K
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| CONFIG_SYS_PCMCIA_TIMING );
161
#endif /* CONFIG_HMI10 */
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default: /* set to not valid */
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debug ("MemWin %d: PBR 0x%08lX POR %08lX\n",
168
i, win->br, win->or);
169
base += CONFIG_SYS_PCMCIA_MEM_SIZE;
173
for (i=0, rc=0, slot=_slot_; i<PCMCIA_SOCKETS_NO; i++, slot = !slot) {
174
/* turn off voltage */
175
if ((rc = pcmcia_voltage_set(slot, 0, 0)))
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/* Enable external hardware */
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if ((rc = pcmcia_hardware_enable(slot)))
182
#ifdef CONFIG_IDE_8xx_PCCARD
183
if ((rc = check_ide_device(i)))
190
#if defined(CONFIG_CMD_PCMCIA)
191
int pcmcia_off (void)
196
printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
198
/* clear interrupt state, and disable interrupts */
199
((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pscr = PCMCIA_MASK(_slot_);
200
((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_per &= ~PCMCIA_MASK(_slot_);
202
/* turn off interrupt and disable CxOE */
203
PCMCIA_PGCRX(_slot_) = __MY_PCMCIA_GCRX_CXOE;
205
/* turn off memory windows */
206
win = (pcmcia_win_t *)(&((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pbr0);
208
for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) {
209
/* disable memory window */
214
/* turn off voltage */
215
pcmcia_voltage_set(_slot_, 0, 0);
217
/* disable external hardware */
218
printf ("Shutdown and Poweroff " PCMCIA_SLOT_MSG "\n");
219
pcmcia_hardware_disable(_slot_);
225
static u_int m8xx_get_graycode(u_int size)
229
for (k = 0; k < M8XX_SIZES_NO; k++) {
230
if(m8xx_size_to_gray[k] == size)
234
if((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1))
242
#if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)
244
/* The RPX boards seems to have it's bus monitor timeout set to 6*8 clocks.
245
* SYPCR is write once only, therefore must the slowest memory be faster
246
* than the bus monitor or we will get a machine check due to the bus timeout.
248
#undef PCMCIA_BMT_LIMIT
249
#define PCMCIA_BMT_LIMIT (6*8)
252
static u_int m8xx_get_speed(u_int ns, u_int is_io)
254
u_int reg, clocks, psst, psl, psht;
259
* We get called with IO maps setup to 0ns
260
* if not specified by the user.
261
* They should be 255ns.
267
ns = 100; /* fast memory if 0 */
271
* In PSST, PSL, PSHT fields we tell the controller
272
* timing parameters in CLKOUT clock cycles.
273
* CLKOUT is the same as GCLK2_50.
276
/* how we want to adjust the timing - in percent */
278
#define ADJ 180 /* 80 % longer accesstime - to be sure */
280
clocks = ((M8XX_BUSFREQ / 1000) * ns) / 1000;
281
clocks = (clocks * ADJ) / (100*1000);
283
if(clocks >= PCMCIA_BMT_LIMIT) {
284
DEBUG(0, "Max access time limit reached\n");
285
clocks = PCMCIA_BMT_LIMIT-1;
288
psst = clocks / 7; /* setup time */
289
psht = clocks / 7; /* hold time */
290
psl = (clocks * 5) / 7; /* strobe length */
292
psst += clocks - (psst + psht + psl);
302
#endif /* CONFIG_PCMCIA */