+++ /dev/null
-#include <common.h>
-#include <mpc8xx.h>
-#include <pcmcia.h>
-#include <linux/compiler.h>
-
-#undef CONFIG_PCMCIA
-
-#if defined(CONFIG_CMD_PCMCIA)
-#define CONFIG_PCMCIA
-#endif
-
-#if defined(CONFIG_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
-#define CONFIG_PCMCIA
-#endif
-
-#if defined(CONFIG_PCMCIA)
-
-#if defined(CONFIG_IDE_8xx_PCCARD)
-extern int check_ide_device (int slot);
-#endif
-
-extern int pcmcia_hardware_enable (int slot);
-extern int pcmcia_voltage_set(int slot, int vcc, int vpp);
-
-#if defined(CONFIG_CMD_PCMCIA)
-extern int pcmcia_hardware_disable(int slot);
-#endif
-
-static u_int m8xx_get_graycode(u_int size);
-#if 0 /* Disabled */
-static u_int m8xx_get_speed(u_int ns, u_int is_io);
-#endif
-
-/* look up table for pgcrx registers */
-u_int *pcmcia_pgcrx[2] = {
- &((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcra,
- &((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb,
-};
-
-/*
- * Search this table to see if the windowsize is
- * supported...
- */
-
-#define M8XX_SIZES_NO 32
-
-static const u_int m8xx_size_to_gray[M8XX_SIZES_NO] =
-{ 0x00000001, 0x00000002, 0x00000008, 0x00000004,
- 0x00000080, 0x00000040, 0x00000010, 0x00000020,
- 0x00008000, 0x00004000, 0x00001000, 0x00002000,
- 0x00000100, 0x00000200, 0x00000800, 0x00000400,
-
- 0x0fffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- 0x01000000, 0x02000000, 0xffffffff, 0x04000000,
- 0x00010000, 0x00020000, 0x00080000, 0x00040000,
- 0x00800000, 0x00400000, 0x00100000, 0x00200000 };
-
-
-/* -------------------------------------------------------------------- */
-
-#define CONFIG_SYS_PCMCIA_TIMING ( PCMCIA_SHT(2) \
- | PCMCIA_SST(4) \
- | PCMCIA_SL(9))
-
-/* -------------------------------------------------------------------- */
-
-int pcmcia_on (void)
-{
- u_long reg, base;
- pcmcia_win_t *win;
- u_int rc, slot;
- __maybe_unused u_int slotbit;
- int i;
-
- debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
-
- /* intialize the fixed memory windows */
- win = (pcmcia_win_t *)(&((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pbr0);
- base = CONFIG_SYS_PCMCIA_MEM_ADDR;
-
- if((reg = m8xx_get_graycode(CONFIG_SYS_PCMCIA_MEM_SIZE)) == -1) {
- printf ("Cannot set window size to 0x%08x\n",
- CONFIG_SYS_PCMCIA_MEM_SIZE);
- return (1);
- }
-
- slotbit = PCMCIA_SLOT_x;
- for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) {
- win->br = base;
-
-#if (PCMCIA_SOCKETS_NO == 2)
- if (i == 4) /* Another slot starting from win 4 */
- slotbit = (slotbit ? PCMCIA_PSLOT_A : PCMCIA_PSLOT_B);
-#endif
- switch (i) {
-#ifdef CONFIG_IDE_8xx_PCCARD
- case 4:
- case 0: { /* map attribute memory */
- win->or = ( PCMCIA_BSIZE_64M
- | PCMCIA_PPS_8
- | PCMCIA_PRS_ATTR
- | slotbit
- | PCMCIA_PV
- | CONFIG_SYS_PCMCIA_TIMING );
- break;
- }
- case 5:
- case 1: { /* map I/O window for data reg */
- win->or = ( PCMCIA_BSIZE_1K
- | PCMCIA_PPS_16
- | PCMCIA_PRS_IO
- | slotbit
- | PCMCIA_PV
- | CONFIG_SYS_PCMCIA_TIMING );
- break;
- }
- case 6:
- case 2: { /* map I/O window for cmd/ctrl reg block */
- win->or = ( PCMCIA_BSIZE_1K
- | PCMCIA_PPS_8
- | PCMCIA_PRS_IO
- | slotbit
- | PCMCIA_PV
- | CONFIG_SYS_PCMCIA_TIMING );
- break;
- }
-#endif /* CONFIG_IDE_8xx_PCCARD */
- default: /* set to not valid */
- win->or = 0;
- break;
- }
-
- debug ("MemWin %d: PBR 0x%08lX POR %08lX\n",
- i, win->br, win->or);
- base += CONFIG_SYS_PCMCIA_MEM_SIZE;
- ++win;
- }
-
- for (i=0, rc=0, slot=_slot_; i<PCMCIA_SOCKETS_NO; i++, slot = !slot) {
- /* turn off voltage */
- if ((rc = pcmcia_voltage_set(slot, 0, 0)))
- continue;
-
- /* Enable external hardware */
- if ((rc = pcmcia_hardware_enable(slot)))
- continue;
-
-#ifdef CONFIG_IDE_8xx_PCCARD
- if ((rc = check_ide_device(i)))
- continue;
-#endif
- }
- return rc;
-}
-
-#if defined(CONFIG_CMD_PCMCIA)
-int pcmcia_off (void)
-{
- int i;
- pcmcia_win_t *win;
-
- printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
-
- /* clear interrupt state, and disable interrupts */
- ((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pscr = PCMCIA_MASK(_slot_);
- ((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_per &= ~PCMCIA_MASK(_slot_);
-
- /* turn off interrupt and disable CxOE */
- PCMCIA_PGCRX(_slot_) = __MY_PCMCIA_GCRX_CXOE;
-
- /* turn off memory windows */
- win = (pcmcia_win_t *)(&((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pbr0);
-
- for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) {
- /* disable memory window */
- win->or = 0;
- ++win;
- }
-
- /* turn off voltage */
- pcmcia_voltage_set(_slot_, 0, 0);
-
- /* disable external hardware */
- printf ("Shutdown and Poweroff " PCMCIA_SLOT_MSG "\n");
- pcmcia_hardware_disable(_slot_);
- return 0;
-}
-#endif
-
-
-static u_int m8xx_get_graycode(u_int size)
-{
- u_int k;
-
- for (k = 0; k < M8XX_SIZES_NO; k++) {
- if(m8xx_size_to_gray[k] == size)
- break;
- }
-
- if((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1))
- k = -1;
-
- return k;
-}
-
-#if 0
-
-static u_int m8xx_get_speed(u_int ns, u_int is_io)
-{
- u_int reg, clocks, psst, psl, psht;
-
- if(!ns) {
-
- /*
- * We get called with IO maps setup to 0ns
- * if not specified by the user.
- * They should be 255ns.
- */
-
- if(is_io)
- ns = 255;
- else
- ns = 100; /* fast memory if 0 */
- }
-
- /*
- * In PSST, PSL, PSHT fields we tell the controller
- * timing parameters in CLKOUT clock cycles.
- * CLKOUT is the same as GCLK2_50.
- */
-
- /* how we want to adjust the timing - in percent */
-
-#define ADJ 180 /* 80 % longer accesstime - to be sure */
-
- clocks = ((M8XX_BUSFREQ / 1000) * ns) / 1000;
- clocks = (clocks * ADJ) / (100*1000);
-
- if(clocks >= PCMCIA_BMT_LIMIT) {
- DEBUG(0, "Max access time limit reached\n");
- clocks = PCMCIA_BMT_LIMIT-1;
- }
-
- psst = clocks / 7; /* setup time */
- psht = clocks / 7; /* hold time */
- psl = (clocks * 5) / 7; /* strobe length */
-
- psst += clocks - (psst + psht + psl);
-
- reg = psst << 12;
- reg |= psl << 7;
- reg |= psht << 16;
-
- return reg;
-}
-#endif /* 0 */
-
-#endif /* CONFIG_PCMCIA */
projects / people / ms / u-boot.git / blobdiff