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authorwdenk <wdenk>2005-04-06 00:04:16 +0000
committerwdenk <wdenk>2005-04-06 00:04:16 +0000
commit20787e23b8501f11c83599d1a2e38bb1204ac961 (patch)
treefba53e6f1dd6cb3ca1f030ac47bffbdf3bdbdd1f /board/adsvix/pcmcia.c
parent3c2b3d454daa6024cc20d166b2f50efde169c7fe (diff)
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* Patches by Robert Whaley, 29 Nov 2004:
- update the pxa-regs.h file for PXA27x chips - add PXA27x based ADSVIX board - add support for MMC on PXA27x processors * Patch by Andrew E. Mileski, 28 Nov 2004: Fix PPC4xx SPD SDRAM detection bug * Patch by Hiroshi Ito, 26 Nov 2004: Fix logic of "test -z" and "test -n" commands
Diffstat (limited to 'board/adsvix/pcmcia.c')
-rw-r--r--board/adsvix/pcmcia.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/board/adsvix/pcmcia.c b/board/adsvix/pcmcia.c
new file mode 100644
index 0000000..ba5be01
--- /dev/null
+++ b/board/adsvix/pcmcia.c
@@ -0,0 +1,67 @@
+/*
+ * (C) Copyright 2004
+ * Robert Whaley, Applied Data Systems, Inc. rwhaley@applieddata.net
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/pxa-regs.h>
+
+void pcmcia_power_on(void)
+{
+#if 0
+ if (!(GPLR(20) & GPIO_bit(20))) { /* 3.3V */
+ GPCR(81) = GPIO_bit(81);
+ GPSR(82) = GPIO_bit(82);
+ }
+ else if (!(GPLR(21) & GPIO_bit(21))) { /* 5.0V */
+ GPCR(81) = GPIO_bit(81);
+ GPCR(82) = GPIO_bit(82);
+ }
+#else
+#warning "Board will only supply 5V, wait for next HW spin for selectable power"
+ /* 5.0V */
+ GPCR(81) = GPIO_bit(81);
+ GPCR(82) = GPIO_bit(82);
+#endif
+
+ udelay(300000);
+
+ /* reset the card */
+ GPSR(52) = GPIO_bit(52);
+
+ /* enable PCMCIA */
+ GPCR(83) = GPIO_bit(83);
+
+ /* clear reset */
+ udelay(10);
+ GPCR(52) = GPIO_bit(52);
+
+ udelay(20000);
+}
+
+void pcmcia_power_off(void)
+{
+ /* 0V */
+ GPSR(81) = GPIO_bit(81);
+ GPSR(82) = GPIO_bit(82);
+ /* disable PCMCIA */
+ GPSR(83) = GPIO_bit(83);
+}