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path: root/drivers/pcmcia/tqm8xx_pcmcia.c
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Diffstat (limited to 'drivers/pcmcia/tqm8xx_pcmcia.c')
-rw-r--r--drivers/pcmcia/tqm8xx_pcmcia.c254
1 files changed, 0 insertions, 254 deletions
diff --git a/drivers/pcmcia/tqm8xx_pcmcia.c b/drivers/pcmcia/tqm8xx_pcmcia.c
deleted file mode 100644
index edff50f..0000000
--- a/drivers/pcmcia/tqm8xx_pcmcia.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/* -------------------------------------------------------------------- */
-/* TQM8xxL Boards by TQ Components */
-/* SC8xx Boards by SinoVee Microsystems */
-/* -------------------------------------------------------------------- */
-#include <common.h>
-#include <asm/io.h>
-#ifdef CONFIG_8xx
-#include <mpc8xx.h>
-#endif
-#include <pcmcia.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) \
- && defined(CONFIG_TQM8xxL)
-
-#if defined(CONFIG_TQM8xxL)
-#define PCMCIA_BOARD_MSG "TQM8xxL"
-#endif
-
-static inline void power_config(int slot)
-{
- immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- /*
- * Configure Port C pins for
- * 5 Volts Enable and 3 Volts enable
- */
- clrbits_be16(&immap->im_ioport.iop_pcpar, 0x0002 | 0x0004);
- clrbits_be16(&immap->im_ioport.iop_pcso, 0x0002 | 0x0004);
-}
-
-static inline void power_off(int slot)
-{
- immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- clrbits_be16(&immap->im_ioport.iop_pcdat, 0x0002 | 0x0004);
-}
-
-static inline void power_on_5_0(int slot)
-{
- immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- setbits_be16(&immap->im_ioport.iop_pcdat, 0x0004);
- setbits_be16(&immap->im_ioport.iop_pcdir, 0x0002 | 0x0004);
-}
-
-static inline void power_on_3_3(int slot)
-{
- immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- setbits_be16(&immap->im_ioport.iop_pcdat, 0x0002);
- setbits_be16(&immap->im_ioport.iop_pcdir, 0x0002 | 0x0004);
-}
-
-/*
- * Function to retrieve the PIPR register, used for debuging purposes.
- */
-static inline uint32_t debug_get_pipr(void)
-{
- uint32_t pipr = 0;
-#ifdef DEBUG
- immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- pipr = in_be32(&immap->im_pcmcia.pcmc_pipr);
-#endif
- return pipr;
-}
-
-
-static inline int check_card_is_absent(int slot)
-{
- immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- uint32_t pipr = in_be32(&immap->im_pcmcia.pcmc_pipr);
- return pipr & (0x18000000 >> (slot << 4));
-}
-
-#define NSCU_GCRX_CXOE __MY_PCMCIA_GCRX_CXOE
-
-int pcmcia_hardware_enable(int slot)
-{
- immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- uint reg, mask;
-
- debug("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
-
- udelay(10000);
-
- /*
- * Configure SIUMCR to enable PCMCIA port B
- * (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
- */
-
- /* Set DBGC to 00 */
- clrbits_be32(&immap->im_siu_conf.sc_siumcr, SIUMCR_DBGC11);
-
- /* Clear interrupt state, and disable interrupts */
- out_be32(&immap->im_pcmcia.pcmc_pscr, PCMCIA_MASK(slot));
- clrbits_be32(&immap->im_pcmcia.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 |= NSCU_GCRX_CXOE;
-
- PCMCIA_PGCRX(slot) = reg;
- udelay(500);
-
- power_config(slot);
- power_off(slot);
-
- /*
- * Make sure there is a card in the slot, then configure the interface.
- */
- udelay(10000);
- reg = debug_get_pipr();
- debug("[%d] %s: PIPR(%p)=0x%x\n", __LINE__, __FUNCTION__,
- &immap->im_pcmcia.pcmc_pipr, reg);
-
- if (check_card_is_absent(slot)) {
- printf (" No Card found\n");
- return (1);
- }
-
- /*
- * Power On.
- */
- mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
- reg = in_be32(&immap->im_pcmcia.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) {
- power_on_5_0(slot);
- puts (" 5.0V card found: ");
- } else {
- power_on_3_3(slot);
- puts (" 3.3V card found: ");
- }
-
-#if 0
- /* VCC switch error flag, PCMCIA slot INPACK_ pin */
- cp->cp_pbdir &= ~(0x0020 | 0x0010);
- cp->cp_pbpar &= ~(0x0020 | 0x0010);
- udelay(500000);
-#endif
-
- udelay(1000);
- 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 */
- reg &= ~NSCU_GCRX_CXOE;
-
- 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)
-{
- u_long reg;
-
- debug("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
-
- /* remove all power */
- power_off(slot);
-
- debug("Disable PCMCIA buffers and assert RESET\n");
- reg = 0;
- reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
- reg |= NSCU_GCRX_CXOE; /* active low */
-
- PCMCIA_PGCRX(slot) = reg;
-
- udelay(10000);
-
- return (0);
-}
-#endif
-
-int pcmcia_voltage_set(int slot, int vcc, int vpp)
-{
- u_long reg;
- uint32_t pipr = 0;
-
- 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);
-
- /*
- * 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 */
- reg |= NSCU_GCRX_CXOE; /* active low */
-
- PCMCIA_PGCRX(slot) = reg;
- udelay(500);
-
- debug("PCMCIA power OFF\n");
- power_config(slot);
- power_off(slot);
-
- switch(vcc) {
- case 0: break;
- case 33: power_on_3_3(slot); break;
- case 50: power_on_5_0(slot); break;
- default: goto done;
- }
-
- /* Checking supported voltages */
- pipr = debug_get_pipr();
- debug("PIPR: 0x%x --> %s\n", pipr,
- (pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");
-
- if (vcc)
- debug("PCMCIA powered at %sV\n", (vcc == 50) ? "5.0" : "3.3");
- 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 */
- reg &= ~NSCU_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 && CONFIG_TQM8xxL */
generated by cgit v0.10.2 at 2024-11-12 15:28:48 (GMT)