From 9d407995516bfcd401b76de0c11e679fb3871c79 Mon Sep 17 00:00:00 2001
From: Wolfgang Denk <wd@pollux.denx.de>
Date: Mon, 10 Jul 2006 23:07:28 +0200
Subject: Major PCMCIA Cleanup to make code better readable and maintainable.
 Notes: - Board-dependend code for RPXLITE and RPXCLASSIC-based boards  
 placed to the drivers/rpx_pmcia.c file to avoid duplication.   Same for
 TQM8xx-based boards (drivers/tqm8xx_pmcia.c). - drivers/i82365.c has been
 split into two parts located at   board/atc/ti113x.c and
 board/cpc45/pd67290.c (ATC and CPC45 are   the only boards using
 CONFIG_82365). - Changes were tested for clean build and *very* *few* boards.

---
 board/gth/Makefile |  2 +-
 board/gth/pcmcia.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 94 insertions(+), 1 deletion(-)
 create mode 100644 board/gth/pcmcia.c

(limited to 'board/gth')

diff --git a/board/gth/Makefile b/board/gth/Makefile
index e14c12e..48f74cd 100644
--- a/board/gth/Makefile
+++ b/board/gth/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= lib$(BOARD).a
 
-OBJS	= $(BOARD).o flash.o ee_access.o
+OBJS	= $(BOARD).o flash.o ee_access.o pcmcia.o
 
 $(LIB):	.depend $(OBJS)
 	$(AR) crv $@ $(OBJS)
diff --git a/board/gth/pcmcia.c b/board/gth/pcmcia.c
new file mode 100644
index 0000000..fce5492
--- /dev/null
+++ b/board/gth/pcmcia.c
@@ -0,0 +1,93 @@
+#include <common.h>
+#include <mpc8xx.h>
+#include <pcmcia.h>
+
+#undef	CONFIG_PCMCIA
+
+#if	(CONFIG_COMMANDS & CFG_CMD_PCMCIA)
+#define	CONFIG_PCMCIA
+#endif
+
+#if	(CONFIG_COMMANDS & CFG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
+#define	CONFIG_PCMCIA
+#endif
+
+#ifdef	CONFIG_PCMCIA
+
+#define PCMCIA_BOARD_MSG "GTH COMPACT FLASH"
+
+int pcmcia_voltage_set (int slot, int vcc, int vpp)
+{	/* Do nothing */
+	return 0;
+}
+
+int pcmcia_hardware_enable (int slot)
+{
+	volatile immap_t *immap;
+	volatile cpm8xx_t *cp;
+	volatile pcmconf8xx_t *pcmp;
+	volatile sysconf8xx_t *sysp;
+	uint reg, mask;
+
+	debug ("hardware_enable: GTH Slot %c\n", 'A' + slot);
+
+	immap = (immap_t *) CFG_IMMR;
+	sysp = (sysconf8xx_t *) (&(((immap_t *) CFG_IMMR)->im_siu_conf));
+	pcmp = (pcmconf8xx_t *) (&(((immap_t *) CFG_IMMR)->im_pcmcia));
+	cp = (cpm8xx_t *) (&(((immap_t *) CFG_IMMR)->im_cpm));
+
+	/* 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 & 0x98000000) {
+		printf ("   No Card found\n");
+		return (1);
+	}
+
+	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");
+
+	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 (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
+int pcmcia_hardware_disable(int slot)
+{
+	return 0;	/* No hardware to disable */
+}
+#endif
+
+#endif	/* CONFIG_PCMCIA */
-- 
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