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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/pcmcia/au1000_xxs1500.c
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/pcmcia/au1000_xxs1500.c')
-rw-r--r--drivers/pcmcia/au1000_xxs1500.c191
1 files changed, 191 insertions, 0 deletions
diff --git a/drivers/pcmcia/au1000_xxs1500.c b/drivers/pcmcia/au1000_xxs1500.c
new file mode 100644
index 000000000000..1dfc77653660
--- /dev/null
+++ b/drivers/pcmcia/au1000_xxs1500.c
@@ -0,0 +1,191 @@
+/*
+ *
+ * MyCable board specific pcmcia routines.
+ *
+ * Copyright 2003 MontaVista Software Inc.
+ * Author: Pete Popov, MontaVista Software, Inc.
+ * ppopov@mvista.com or source@mvista.com
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 <linux/module.h>
+#include <linux/init.h>
+#include <linux/config.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/tqueue.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/proc_fs.h>
+#include <linux/version.h>
+#include <linux/types.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/ss.h>
+#include <pcmcia/bulkmem.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/bus_ops.h>
+#include "cs_internal.h"
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+
+#include <asm/au1000.h>
+#include <asm/au1000_pcmcia.h>
+#include <asm/xxs1500.h>
+
+#if 0
+#define DEBUG(x,args...) printk(__FUNCTION__ ": " x,##args)
+#else
+#define DEBUG(x,args...)
+#endif
+
+static int xxs1500_pcmcia_init(struct pcmcia_init *init)
+{
+ return PCMCIA_NUM_SOCKS;
+}
+
+static int xxs1500_pcmcia_shutdown(void)
+{
+ /* turn off power */
+ au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30),
+ GPIO2_OUTPUT);
+ au_sync_delay(100);
+
+ /* assert reset */
+ au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20),
+ GPIO2_OUTPUT);
+ au_sync_delay(100);
+ return 0;
+}
+
+
+static int
+xxs1500_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)
+{
+ u32 inserted; u32 vs;
+ unsigned long gpio, gpio2;
+
+ if(sock > PCMCIA_MAX_SOCK) return -1;
+
+ gpio = au_readl(SYS_PINSTATERD);
+ gpio2 = au_readl(GPIO2_PINSTATE);
+
+ vs = gpio2 & ((1<<8) | (1<<9));
+ inserted = (!(gpio & 0x1) && !(gpio & 0x2));
+
+ state->ready = 0;
+ state->vs_Xv = 0;
+ state->vs_3v = 0;
+ state->detect = 0;
+
+ if (inserted) {
+ switch (vs) {
+ case 0:
+ case 1:
+ case 2:
+ state->vs_3v=1;
+ break;
+ case 3: /* 5V */
+ default:
+ /* return without setting 'detect' */
+ printk(KERN_ERR "au1x00_cs: unsupported VS\n",
+ vs);
+ return;
+ }
+ state->detect = 1;
+ }
+
+ if (state->detect) {
+ state->ready = 1;
+ }
+
+ state->bvd1= gpio2 & (1<<10);
+ state->bvd2 = gpio2 & (1<<11);
+ state->wrprot=0;
+ return 1;
+}
+
+
+static int xxs1500_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
+{
+
+ if(info->sock > PCMCIA_MAX_SOCK) return -1;
+ info->irq = PCMCIA_IRQ;
+ return 0;
+}
+
+
+static int
+xxs1500_pcmcia_configure_socket(const struct pcmcia_configure *configure)
+{
+
+ if(configure->sock > PCMCIA_MAX_SOCK) return -1;
+
+ DEBUG("Vcc %dV Vpp %dV, reset %d\n",
+ configure->vcc, configure->vpp, configure->reset);
+
+ switch(configure->vcc){
+ case 33: /* Vcc 3.3V */
+ /* turn on power */
+ DEBUG("turn on power\n");
+ au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))|(1<<30),
+ GPIO2_OUTPUT);
+ au_sync_delay(100);
+ break;
+ case 50: /* Vcc 5V */
+ default: /* what's this ? */
+ printk(KERN_ERR "au1x00_cs: unsupported VCC\n");
+ case 0: /* Vcc 0 */
+ /* turn off power */
+ au_sync_delay(100);
+ au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30),
+ GPIO2_OUTPUT);
+ break;
+ }
+
+ if (!configure->reset) {
+ DEBUG("deassert reset\n");
+ au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<4))|(1<<20),
+ GPIO2_OUTPUT);
+ au_sync_delay(100);
+ au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<5))|(1<<21),
+ GPIO2_OUTPUT);
+ }
+ else {
+ DEBUG("assert reset\n");
+ au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20),
+ GPIO2_OUTPUT);
+ }
+ au_sync_delay(100);
+ return 0;
+}
+
+struct pcmcia_low_level xxs1500_pcmcia_ops = {
+ xxs1500_pcmcia_init,
+ xxs1500_pcmcia_shutdown,
+ xxs1500_pcmcia_socket_state,
+ xxs1500_pcmcia_get_irq_info,
+ xxs1500_pcmcia_configure_socket
+};