Linux-2.6.12-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!

1 files changed, 288 insertions, 0 deletions

diff --git a/drivers/pcmcia/au1000_db1x00.c b/drivers/pcmcia/au1000_db1x00.c
new file mode 100644
index 000000000000..42cf8bfbcc98
--- /dev/null
+++ b/drivers/pcmcia/au1000_db1x00.c
@@ -0,0 +1,288 @@
+/*
+ *
+ * Alchemy Semi Db1x00 boards specific pcmcia routines.
+ *
+ * Copyright 2002 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *         	ppopov@mvista.com or source@mvista.com
+ *
+ * Copyright 2004 Pete Popov, updated the driver to 2.6.
+ * Followed the sa11xx API and largely copied many of the hardware
+ * independent functions.
+ *
+ * ########################################################################
+ *
+ *  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/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/init.h>
+
+#include <asm/irq.h>
+#include <asm/signal.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-db1x00/db1x00.h>
+
+#include "au1000_generic.h"
+
+#if 0
+#define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args)
+#else
+#define debug(x,args...)
+#endif
+
+static BCSR * const bcsr = (BCSR *)BCSR_KSEG1_ADDR;
+
+struct au1000_pcmcia_socket au1000_pcmcia_socket[PCMCIA_NUM_SOCKS];
+extern int au1x00_pcmcia_socket_probe(struct device *, struct pcmcia_low_level *, int, int);
+
+static int db1x00_pcmcia_hw_init(struct au1000_pcmcia_socket *skt)
+{
+#ifdef CONFIG_MIPS_DB1550
+	skt->irq = skt->nr ? AU1000_GPIO_5 : AU1000_GPIO_3;
+#else
+	skt->irq = skt->nr ? AU1000_GPIO_5 : AU1000_GPIO_2;
+#endif
+	return 0;
+}
+
+static void db1x00_pcmcia_shutdown(struct au1000_pcmcia_socket *skt)
+{
+	bcsr->pcmcia = 0; /* turn off power */
+	au_sync_delay(2);
+}
+
+static void
+db1x00_pcmcia_socket_state(struct au1000_pcmcia_socket *skt, struct pcmcia_state *state)
+{
+	u32 inserted;
+	unsigned char vs;
+
+	state->ready = 0;
+	state->vs_Xv = 0;
+	state->vs_3v = 0;
+	state->detect = 0;
+
+	switch (skt->nr) {
+	case 0:
+		vs = bcsr->status & 0x3;
+		inserted = !(bcsr->status & (1<<4));
+		break;
+	case 1:
+		vs = (bcsr->status & 0xC)>>2;
+		inserted = !(bcsr->status & (1<<5));
+		break;
+	default:/* should never happen */
+		return;
+	}
+
+	if (inserted)
+		debug("db1x00 socket %d: inserted %d, vs %d pcmcia %x\n",
+				skt->nr, inserted, vs, bcsr->pcmcia);
+
+	if (inserted) {
+		switch (vs) {
+			case 0:
+			case 2:
+				state->vs_3v=1;
+				break;
+			case 3: /* 5V */
+				break;
+			default:
+				/* return without setting 'detect' */
+				printk(KERN_ERR "db1x00 bad VS (%d)\n",
+						vs);
+		}
+		state->detect = 1;
+		state->ready = 1;
+	}
+	else {
+		/* if the card was previously inserted and then ejected,
+		 * we should turn off power to it
+		 */
+		if ((skt->nr == 0) && (bcsr->pcmcia & BCSR_PCMCIA_PC0RST)) {
+			bcsr->pcmcia &= ~(BCSR_PCMCIA_PC0RST |
+					BCSR_PCMCIA_PC0DRVEN |
+					BCSR_PCMCIA_PC0VPP |
+					BCSR_PCMCIA_PC0VCC);
+			au_sync_delay(10);
+		}
+		else if ((skt->nr == 1) && bcsr->pcmcia & BCSR_PCMCIA_PC1RST) {
+			bcsr->pcmcia &= ~(BCSR_PCMCIA_PC1RST |
+					BCSR_PCMCIA_PC1DRVEN |
+					BCSR_PCMCIA_PC1VPP |
+					BCSR_PCMCIA_PC1VCC);
+			au_sync_delay(10);
+		}
+	}
+
+	state->bvd1=1;
+	state->bvd2=1;
+	state->wrprot=0;
+}
+
+static int
+db1x00_pcmcia_configure_socket(struct au1000_pcmcia_socket *skt, struct socket_state_t *state)
+{
+	u16 pwr;
+	int sock = skt->nr;
+
+	debug("config_skt %d Vcc %dV Vpp %dV, reset %d\n",
+			sock, state->Vcc, state->Vpp,
+			state->flags & SS_RESET);
+
+	/* pcmcia reg was set to zero at init time. Be careful when
+	 * initializing a socket not to wipe out the settings of the
+	 * other socket.
+	 */
+	pwr = bcsr->pcmcia;
+	pwr &= ~(0xf << sock*8); /* clear voltage settings */
+
+	state->Vpp = 0;
+	switch(state->Vcc){
+		case 0:  /* Vcc 0 */
+			pwr |= SET_VCC_VPP(0,0,sock);
+			break;
+		case 50: /* Vcc 5V */
+			switch(state->Vpp) {
+				case 0:
+					pwr |= SET_VCC_VPP(2,0,sock);
+					break;
+				case 50:
+					pwr |= SET_VCC_VPP(2,1,sock);
+					break;
+				case 12:
+					pwr |= SET_VCC_VPP(2,2,sock);
+					break;
+				case 33:
+				default:
+					pwr |= SET_VCC_VPP(0,0,sock);
+					printk("%s: bad Vcc/Vpp (%d:%d)\n",
+							__FUNCTION__,
+							state->Vcc,
+							state->Vpp);
+					break;
+			}
+			break;
+		case 33: /* Vcc 3.3V */
+			switch(state->Vpp) {
+				case 0:
+					pwr |= SET_VCC_VPP(1,0,sock);
+					break;
+				case 12:
+					pwr |= SET_VCC_VPP(1,2,sock);
+					break;
+				case 33:
+					pwr |= SET_VCC_VPP(1,1,sock);
+					break;
+				case 50:
+				default:
+					pwr |= SET_VCC_VPP(0,0,sock);
+					printk("%s: bad Vcc/Vpp (%d:%d)\n",
+							__FUNCTION__,
+							state->Vcc,
+							state->Vpp);
+					break;
+			}
+			break;
+		default: /* what's this ? */
+			pwr |= SET_VCC_VPP(0,0,sock);
+			printk(KERN_ERR "%s: bad Vcc %d\n",
+					__FUNCTION__, state->Vcc);
+			break;
+	}
+
+	bcsr->pcmcia = pwr;
+	au_sync_delay(300);
+
+	if (sock == 0) {
+		if (!(state->flags & SS_RESET)) {
+			pwr |= BCSR_PCMCIA_PC0DRVEN;
+			bcsr->pcmcia = pwr;
+			au_sync_delay(300);
+			pwr |= BCSR_PCMCIA_PC0RST;
+			bcsr->pcmcia = pwr;
+			au_sync_delay(100);
+		}
+		else {
+			pwr &= ~(BCSR_PCMCIA_PC0RST | BCSR_PCMCIA_PC0DRVEN);
+			bcsr->pcmcia = pwr;
+			au_sync_delay(100);
+		}
+	}
+	else {
+		if (!(state->flags & SS_RESET)) {
+			pwr |= BCSR_PCMCIA_PC1DRVEN;
+			bcsr->pcmcia = pwr;
+			au_sync_delay(300);
+			pwr |= BCSR_PCMCIA_PC1RST;
+			bcsr->pcmcia = pwr;
+			au_sync_delay(100);
+		}
+		else {
+			pwr &= ~(BCSR_PCMCIA_PC1RST | BCSR_PCMCIA_PC1DRVEN);
+			bcsr->pcmcia = pwr;
+			au_sync_delay(100);
+		}
+	}
+	return 0;
+}
+
+/*
+ * Enable card status IRQs on (re-)initialisation.  This can
+ * be called at initialisation, power management event, or
+ * pcmcia event.
+ */
+void db1x00_socket_init(struct au1000_pcmcia_socket *skt)
+{
+	/* nothing to do for now */
+}
+
+/*
+ * Disable card status IRQs and PCMCIA bus on suspend.
+ */
+void db1x00_socket_suspend(struct au1000_pcmcia_socket *skt)
+{
+	/* nothing to do for now */
+}
+
+struct pcmcia_low_level db1x00_pcmcia_ops = {
+	.owner			= THIS_MODULE,
+
+	.hw_init 		= db1x00_pcmcia_hw_init,
+	.hw_shutdown		= db1x00_pcmcia_shutdown,
+
+	.socket_state		= db1x00_pcmcia_socket_state,
+	.configure_socket	= db1x00_pcmcia_configure_socket,
+
+	.socket_init		= db1x00_socket_init,
+	.socket_suspend		= db1x00_socket_suspend
+};
+
+int __init au1x_board_init(struct device *dev)
+{
+	int ret = -ENODEV;
+	bcsr->pcmcia = 0; /* turn off power, if it's not already off */
+	au_sync_delay(2);
+	ret = au1x00_pcmcia_socket_probe(dev, &db1x00_pcmcia_ops, 0, 2);
+	return ret;
+}