Merge with /home/wd/git/u-boot/master

1 files changed, 95 insertions, 0 deletions

diff --git a/drivers/pxa_pcmcia.c b/drivers/pxa_pcmcia.c
new file mode 100644
index 0000000..d9d38bb
--- /dev/null
+++ b/drivers/pxa_pcmcia.c
@@ -0,0 +1,95 @@
+#include <common.h>
+#include <config.h>
+
+#ifdef CONFIG_PXA_PCMCIA
+
+#include <pcmcia.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/io.h>
+
+static inline void msWait(unsigned msVal)
+{
+	udelay(msVal*1000);
+}
+
+int pcmcia_on (void)
+{
+	unsigned int reg_arr[] = {
+		0x48000028, CFG_MCMEM0_VAL,
+		0x4800002c, CFG_MCMEM1_VAL,
+		0x48000030, CFG_MCATT0_VAL,
+		0x48000034, CFG_MCATT1_VAL,
+		0x48000038, CFG_MCIO0_VAL,
+		0x4800003c, CFG_MCIO1_VAL,
+
+		0, 0
+	};
+	int i, rc;
+
+#ifdef CONFIG_EXADRON1
+	int cardDetect;
+	volatile unsigned int *v_pBCRReg =
+			(volatile unsigned int *) 0x08000000;
+#endif
+
+	debug ("%s\n", __FUNCTION__);
+
+	i = 0;
+	while (reg_arr[i])
+		*((volatile unsigned int *) reg_arr[i++]) |= reg_arr[i++];
+	udelay (1000);
+
+	debug ("%s: programmed mem controller \n", __FUNCTION__);
+
+#ifdef CONFIG_EXADRON1
+
+/*define useful BCR masks */
+#define BCR_CF_INIT_VAL  		    0x00007230
+#define BCR_CF_PWRON_BUSOFF_RESETOFF_VAL    0x00007231
+#define BCR_CF_PWRON_BUSOFF_RESETON_VAL     0x00007233
+#define BCR_CF_PWRON_BUSON_RESETON_VAL      0x00007213
+#define BCR_CF_PWRON_BUSON_RESETOFF_VAL     0x00007211
+
+	/* we see from the GPIO bit if the card is present */
+	cardDetect = !(GPLR0 & GPIO_bit (14));
+
+	if (cardDetect) {
+		printf ("No PCMCIA card found!\n");
+	}
+
+	/* reset the card via the BCR line */
+	*v_pBCRReg = (unsigned) BCR_CF_INIT_VAL;
+	msWait (500);
+
+	*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETOFF_VAL;
+	msWait (500);
+
+	*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETON_VAL;
+	msWait (500);
+
+	*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETON_VAL;
+	msWait (500);
+
+	*v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETOFF_VAL;
+	msWait (1500);
+
+	/* enable address bus */
+	GPCR1 = 0x01;
+	/* and the first CF slot */
+	MECR = 0x00000002;
+
+#endif /* EXADRON 1 */
+
+	rc = check_ide_device (0);	/* use just slot 0 */
+
+	return rc;
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
+int pcmcia_off (void)
+{
+	return 0;
+}
+#endif
+
+#endif /* CONFIG_PXA_PCMCIA */