mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 00:04:15 +08:00
1ac71e5a35
pcmcia_enable_device() now replaces pcmcia_request_configuration(). Instead of config_req_t, all necessary flags are either passed as a parameter to pcmcia_enable_device(), or (in rare circumstances) set in struct pcmcia_device -> flags. With the last remaining user of include/pcmcia/cs.h gone, remove all references. CC: netdev@vger.kernel.org CC: linux-wireless@vger.kernel.org CC: linux-ide@vger.kernel.org CC: linux-usb@vger.kernel.org CC: laforge@gnumonks.org CC: linux-mtd@lists.infradead.org CC: alsa-devel@alsa-project.org CC: linux-serial@vger.kernel.org CC: Jiri Kosina <jkosina@suse.cz> CC: linux-scsi@vger.kernel.org Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> (for drivers/bluetooth) Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
295 lines
6.4 KiB
C
295 lines
6.4 KiB
C
/*
|
|
*
|
|
* Alchemy Semi Pb1000 boards specific pcmcia routines.
|
|
*
|
|
* Copyright 2002 MontaVista Software Inc.
|
|
* Author: 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/delay.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <pcmcia/ss.h>
|
|
#include <pcmcia/cistpl.h>
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/system.h>
|
|
|
|
#include <asm/au1000.h>
|
|
#include <asm/au1000_pcmcia.h>
|
|
|
|
#define debug(fmt, arg...) do { } while (0)
|
|
|
|
#include <asm/pb1000.h>
|
|
#define PCMCIA_IRQ AU1000_GPIO_15
|
|
|
|
static int pb1x00_pcmcia_init(struct pcmcia_init *init)
|
|
{
|
|
u16 pcr;
|
|
pcr = PCR_SLOT_0_RST | PCR_SLOT_1_RST;
|
|
|
|
au_writel(0x8000, PB1000_MDR); /* clear pcmcia interrupt */
|
|
au_sync_delay(100);
|
|
au_writel(0x4000, PB1000_MDR); /* enable pcmcia interrupt */
|
|
au_sync();
|
|
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,0);
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,1);
|
|
au_writel(pcr, PB1000_PCR);
|
|
au_sync_delay(20);
|
|
|
|
return PCMCIA_NUM_SOCKS;
|
|
}
|
|
|
|
static int pb1x00_pcmcia_shutdown(void)
|
|
{
|
|
u16 pcr;
|
|
pcr = PCR_SLOT_0_RST | PCR_SLOT_1_RST;
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,0);
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,1);
|
|
au_writel(pcr, PB1000_PCR);
|
|
au_sync_delay(20);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
pb1x00_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)
|
|
{
|
|
u32 inserted0, inserted1;
|
|
u16 vs0, vs1;
|
|
|
|
vs0 = vs1 = (u16)au_readl(PB1000_ACR1);
|
|
inserted0 = !(vs0 & (ACR1_SLOT_0_CD1 | ACR1_SLOT_0_CD2));
|
|
inserted1 = !(vs1 & (ACR1_SLOT_1_CD1 | ACR1_SLOT_1_CD2));
|
|
vs0 = (vs0 >> 4) & 0x3;
|
|
vs1 = (vs1 >> 12) & 0x3;
|
|
|
|
state->ready = 0;
|
|
state->vs_Xv = 0;
|
|
state->vs_3v = 0;
|
|
state->detect = 0;
|
|
|
|
if (sock == 0) {
|
|
if (inserted0) {
|
|
switch (vs0) {
|
|
case 0:
|
|
case 2:
|
|
state->vs_3v=1;
|
|
break;
|
|
case 3: /* 5V */
|
|
break;
|
|
default:
|
|
/* return without setting 'detect' */
|
|
printk(KERN_ERR "pb1x00 bad VS (%d)\n",
|
|
vs0);
|
|
return 0;
|
|
}
|
|
state->detect = 1;
|
|
}
|
|
}
|
|
else {
|
|
if (inserted1) {
|
|
switch (vs1) {
|
|
case 0:
|
|
case 2:
|
|
state->vs_3v=1;
|
|
break;
|
|
case 3: /* 5V */
|
|
break;
|
|
default:
|
|
/* return without setting 'detect' */
|
|
printk(KERN_ERR "pb1x00 bad VS (%d)\n",
|
|
vs1);
|
|
return 0;
|
|
}
|
|
state->detect = 1;
|
|
}
|
|
}
|
|
|
|
if (state->detect) {
|
|
state->ready = 1;
|
|
}
|
|
|
|
state->bvd1=1;
|
|
state->bvd2=1;
|
|
state->wrprot=0;
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int pb1x00_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
|
|
{
|
|
|
|
if(info->sock > PCMCIA_MAX_SOCK) return -1;
|
|
|
|
/*
|
|
* Even in the case of the Pb1000, both sockets are connected
|
|
* to the same irq line.
|
|
*/
|
|
info->irq = PCMCIA_IRQ;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
pb1x00_pcmcia_configure_socket(const struct pcmcia_configure *configure)
|
|
{
|
|
u16 pcr;
|
|
|
|
if(configure->sock > PCMCIA_MAX_SOCK) return -1;
|
|
|
|
pcr = au_readl(PB1000_PCR);
|
|
|
|
if (configure->sock == 0) {
|
|
pcr &= ~(PCR_SLOT_0_VCC0 | PCR_SLOT_0_VCC1 |
|
|
PCR_SLOT_0_VPP0 | PCR_SLOT_0_VPP1);
|
|
}
|
|
else {
|
|
pcr &= ~(PCR_SLOT_1_VCC0 | PCR_SLOT_1_VCC1 |
|
|
PCR_SLOT_1_VPP0 | PCR_SLOT_1_VPP1);
|
|
}
|
|
|
|
pcr &= ~PCR_SLOT_0_RST;
|
|
debug("Vcc %dV Vpp %dV, pcr %x\n",
|
|
configure->vcc, configure->vpp, pcr);
|
|
switch(configure->vcc){
|
|
case 0: /* Vcc 0 */
|
|
switch(configure->vpp) {
|
|
case 0:
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_GND,
|
|
configure->sock);
|
|
break;
|
|
case 12:
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_12V,
|
|
configure->sock);
|
|
break;
|
|
case 50:
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_5V,
|
|
configure->sock);
|
|
break;
|
|
case 33:
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_3V,
|
|
configure->sock);
|
|
break;
|
|
default:
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,
|
|
configure->sock);
|
|
printk("%s: bad Vcc/Vpp (%d:%d)\n",
|
|
__func__,
|
|
configure->vcc,
|
|
configure->vpp);
|
|
break;
|
|
}
|
|
break;
|
|
case 50: /* Vcc 5V */
|
|
switch(configure->vpp) {
|
|
case 0:
|
|
pcr |= SET_VCC_VPP(VCC_5V,VPP_GND,
|
|
configure->sock);
|
|
break;
|
|
case 50:
|
|
pcr |= SET_VCC_VPP(VCC_5V,VPP_5V,
|
|
configure->sock);
|
|
break;
|
|
case 12:
|
|
pcr |= SET_VCC_VPP(VCC_5V,VPP_12V,
|
|
configure->sock);
|
|
break;
|
|
case 33:
|
|
pcr |= SET_VCC_VPP(VCC_5V,VPP_3V,
|
|
configure->sock);
|
|
break;
|
|
default:
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,
|
|
configure->sock);
|
|
printk("%s: bad Vcc/Vpp (%d:%d)\n",
|
|
__func__,
|
|
configure->vcc,
|
|
configure->vpp);
|
|
break;
|
|
}
|
|
break;
|
|
case 33: /* Vcc 3.3V */
|
|
switch(configure->vpp) {
|
|
case 0:
|
|
pcr |= SET_VCC_VPP(VCC_3V,VPP_GND,
|
|
configure->sock);
|
|
break;
|
|
case 50:
|
|
pcr |= SET_VCC_VPP(VCC_3V,VPP_5V,
|
|
configure->sock);
|
|
break;
|
|
case 12:
|
|
pcr |= SET_VCC_VPP(VCC_3V,VPP_12V,
|
|
configure->sock);
|
|
break;
|
|
case 33:
|
|
pcr |= SET_VCC_VPP(VCC_3V,VPP_3V,
|
|
configure->sock);
|
|
break;
|
|
default:
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,
|
|
configure->sock);
|
|
printk("%s: bad Vcc/Vpp (%d:%d)\n",
|
|
__func__,
|
|
configure->vcc,
|
|
configure->vpp);
|
|
break;
|
|
}
|
|
break;
|
|
default: /* what's this ? */
|
|
pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,configure->sock);
|
|
printk(KERN_ERR "%s: bad Vcc %d\n",
|
|
__func__, configure->vcc);
|
|
break;
|
|
}
|
|
|
|
if (configure->sock == 0) {
|
|
pcr &= ~(PCR_SLOT_0_RST);
|
|
if (configure->reset)
|
|
pcr |= PCR_SLOT_0_RST;
|
|
}
|
|
else {
|
|
pcr &= ~(PCR_SLOT_1_RST);
|
|
if (configure->reset)
|
|
pcr |= PCR_SLOT_1_RST;
|
|
}
|
|
au_writel(pcr, PB1000_PCR);
|
|
au_sync_delay(300);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
struct pcmcia_low_level pb1x00_pcmcia_ops = {
|
|
pb1x00_pcmcia_init,
|
|
pb1x00_pcmcia_shutdown,
|
|
pb1x00_pcmcia_socket_state,
|
|
pb1x00_pcmcia_get_irq_info,
|
|
pb1x00_pcmcia_configure_socket
|
|
};
|