+++ /dev/null
-#include <common.h>
-#include <mpc8xx.h>
-#include <pcmcia.h>
-#include <i2c.h>
-
-#undef CONFIG_PCMCIA
-
-#if defined(CONFIG_CMD_PCMCIA)
-#define CONFIG_PCMCIA
-#endif
-
-#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
-#define CONFIG_PCMCIA
-#endif
-
-#ifdef CONFIG_PCMCIA
-
-#define PCMCIA_BOARD_MSG "LWMON"
-
-/* #define's for MAX1604 Power Switch */
-#define MAX1604_OP_SUS 0x80
-#define MAX1604_VCCBON 0x40
-#define MAX1604_VCC_35 0x20
-#define MAX1604_VCCBHIZ 0x10
-#define MAX1604_VPPBON 0x08
-#define MAX1604_VPPBPBPGM 0x04
-#define MAX1604_VPPBHIZ 0x02
-/* reserved 0x01 */
-
-int pcmcia_hardware_enable(int slot)
-{
- volatile pcmconf8xx_t *pcmp;
- volatile sysconf8xx_t *sysp;
- uint reg, mask;
- uchar val;
-
-
- debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
-
- /* Switch on PCMCIA port in PIC register 0x60 */
- reg = pic_read (0x60);
- debug ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);
- reg &= ~0x10;
- /* reg |= 0x08; Vpp not needed */
- pic_write (0x60, reg);
-#ifdef DEBUG
- reg = pic_read (0x60);
- printf ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);
-#endif
- udelay(10000);
-
- sysp = (sysconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_siu_conf));
- pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia));
-
- /*
- * Configure SIUMCR to enable PCMCIA port B
- * (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
- */
- sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */
-
- /* clear interrupt state, and disable interrupts */
- pcmp->pcmc_pscr = PCMCIA_MASK(_slot_);
- pcmp->pcmc_per &= ~PCMCIA_MASK(_slot_);
-
- /*
- * Disable interrupts, DMA, and PCMCIA buffers
- * (isolate the interface) and assert RESET signal
- */
- debug ("Disable PCMCIA buffers and assert RESET\n");
- reg = 0;
- reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
- reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
- PCMCIA_PGCRX(_slot_) = reg;
- udelay(500);
-
- /*
- * Make sure there is a card in the slot, then configure the interface.
- */
- udelay(10000);
- debug ("[%d] %s: PIPR(%p)=0x%x\n",
- __LINE__,__FUNCTION__,
- &(pcmp->pcmc_pipr),pcmp->pcmc_pipr);
- if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) {
- printf (" No Card found\n");
- return (1);
- }
-
- /*
- * Power On.
- */
- mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
- reg = pcmp->pcmc_pipr;
- debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
- reg,
- (reg&PCMCIA_VS1(slot))?"n":"ff",
- (reg&PCMCIA_VS2(slot))?"n":"ff");
- if ((reg & mask) == mask) {
- val = 0; /* VCCB3/5 = 0 ==> use Vx = 5.0 V */
- puts (" 5.0V card found: ");
- } else {
- val = MAX1604_VCC_35; /* VCCB3/5 = 1 ==> use Vy = 3.3 V */
- puts (" 3.3V card found: ");
- }
-
- /* switch VCC on */
- val |= MAX1604_OP_SUS | MAX1604_VCCBON;
- i2c_set_bus_num(0);
- i2c_write (CONFIG_SYS_I2C_POWER_A_ADDR, 0, 0, &val, 1);
-
- udelay(500000);
-
- debug ("Enable PCMCIA buffers and stop RESET\n");
- reg = PCMCIA_PGCRX(_slot_);
- reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
- reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
- PCMCIA_PGCRX(_slot_) = reg;
-
- udelay(250000); /* some cards need >150 ms to come up :-( */
-
- debug ("# hardware_enable done\n");
-
- return (0);
-}
-
-
-#if defined(CONFIG_CMD_PCMCIA)
-int pcmcia_hardware_disable(int slot)
-{
- volatile immap_t *immap;
- volatile pcmconf8xx_t *pcmp;
- u_long reg;
- uchar val;
-
- debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
-
- immap = (immap_t *)CONFIG_SYS_IMMR;
- pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia));
-
- /* remove all power, put output in high impedance state */
- val = MAX1604_VCCBHIZ | MAX1604_VPPBHIZ;
- i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
- i2c_write (CONFIG_SYS_I2C_POWER_A_ADDR, 0, 0, &val, 1);
-
- /* Configure PCMCIA General Control Register */
- debug ("Disable PCMCIA buffers and assert RESET\n");
- reg = 0;
- reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
- reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
- PCMCIA_PGCRX(_slot_) = reg;
-
- /* Switch off PCMCIA port in PIC register 0x60 */
- reg = pic_read (0x60);
- debug ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);
- reg |= 0x10;
- reg &= ~0x08;
- pic_write (0x60, reg);
-#ifdef DEBUG
- reg = pic_read (0x60);
- printf ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);
-#endif
- udelay(10000);
-
- return (0);
-}
-#endif
-
-
-int pcmcia_voltage_set(int slot, int vcc, int vpp)
-{
- volatile pcmconf8xx_t *pcmp;
- u_long reg;
- uchar val;
-
- debug ("voltage_set: "
- PCMCIA_BOARD_MSG
- " Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
- 'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);
-
- pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia));
- /*
- * Disable PCMCIA buffers (isolate the interface)
- * and assert RESET signal
- */
- debug ("Disable PCMCIA buffers and assert RESET\n");
- reg = PCMCIA_PGCRX(_slot_);
- reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
- reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
- PCMCIA_PGCRX(_slot_) = reg;
- udelay(500);
-
- /*
- * Turn off all power (switch to high impedance)
- */
- debug ("PCMCIA power OFF\n");
- val = MAX1604_VCCBHIZ | MAX1604_VPPBHIZ;
- i2c_set_bus_num(0);
- i2c_write (CONFIG_SYS_I2C_POWER_A_ADDR, 0, 0, &val, 1);
-
- val = 0;
- switch(vcc) {
- case 0: break;
- case 33: val = MAX1604_VCC_35; break;
- case 50: break;
- default: goto done;
- }
-
- /* Checking supported voltages */
-
- debug ("PIPR: 0x%x --> %s\n",
- pcmp->pcmc_pipr,
- (pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");
-
- i2c_write (CONFIG_SYS_I2C_POWER_A_ADDR, 0, 0, &val, 1);
- if (val) {
- debug ("PCMCIA powered at %sV\n",
- (val & MAX1604_VCC_35) ? "3.3" : "5.0");
- } else {
- debug ("PCMCIA powered down\n");
- }
-
-done:
- debug ("Enable PCMCIA buffers and stop RESET\n");
- reg = PCMCIA_PGCRX(_slot_);
- reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
- reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
- PCMCIA_PGCRX(_slot_) = reg;
- udelay(500);
-
- debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n",
- slot+'A');
- return (0);
-}
-
-#endif /* CONFIG_PCMCIA */
projects / karo-tx-uboot.git / blobdiff