mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
2e11cb4c52
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
418 lines
9.1 KiB
C
418 lines
9.1 KiB
C
/*
|
|
*
|
|
* Alchemy Semi Pb1x00 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/tqueue.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/types.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>
|
|
|
|
#define debug(fmt, arg...) do { } while (0)
|
|
|
|
#ifdef CONFIG_MIPS_PB1000
|
|
#include <asm/pb1000.h>
|
|
#define PCMCIA_IRQ AU1000_GPIO_15
|
|
#elif defined (CONFIG_MIPS_PB1500)
|
|
#include <asm/pb1500.h>
|
|
#define PCMCIA_IRQ AU1500_GPIO_203
|
|
#elif defined (CONFIG_MIPS_PB1100)
|
|
#include <asm/pb1100.h>
|
|
#define PCMCIA_IRQ AU1000_GPIO_11
|
|
#endif
|
|
|
|
static int pb1x00_pcmcia_init(struct pcmcia_init *init)
|
|
{
|
|
#ifdef CONFIG_MIPS_PB1000
|
|
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;
|
|
|
|
#else /* fixme -- take care of the Pb1500 at some point */
|
|
|
|
u16 pcr;
|
|
pcr = au_readw(PCMCIA_BOARD_REG) & ~0xf; /* turn off power */
|
|
pcr &= ~(PC_DEASSERT_RST | PC_DRV_EN);
|
|
au_writew(pcr, PCMCIA_BOARD_REG);
|
|
au_sync_delay(500);
|
|
return PCMCIA_NUM_SOCKS;
|
|
#endif
|
|
}
|
|
|
|
static int pb1x00_pcmcia_shutdown(void)
|
|
{
|
|
#ifdef CONFIG_MIPS_PB1000
|
|
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;
|
|
#else
|
|
u16 pcr;
|
|
pcr = au_readw(PCMCIA_BOARD_REG) & ~0xf; /* turn off power */
|
|
pcr &= ~(PC_DEASSERT_RST | PC_DRV_EN);
|
|
au_writew(pcr, PCMCIA_BOARD_REG);
|
|
au_sync_delay(2);
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
static int
|
|
pb1x00_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state)
|
|
{
|
|
u32 inserted0, inserted1;
|
|
u16 vs0, vs1;
|
|
|
|
#ifdef CONFIG_MIPS_PB1000
|
|
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;
|
|
#else
|
|
vs0 = (au_readw(BOARD_STATUS_REG) >> 4) & 0x3;
|
|
#ifdef CONFIG_MIPS_PB1500
|
|
inserted0 = !((au_readl(GPIO2_PINSTATE) >> 1) & 0x1); /* gpio 201 */
|
|
#else /* Pb1100 */
|
|
inserted0 = !((au_readl(SYS_PINSTATERD) >> 9) & 0x1); /* gpio 9 */
|
|
#endif
|
|
inserted1 = 0;
|
|
#endif
|
|
|
|
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;
|
|
|
|
#ifdef CONFIG_MIPS_PB1000
|
|
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);
|
|
|
|
#else
|
|
|
|
pcr = au_readw(PCMCIA_BOARD_REG) & ~0xf;
|
|
|
|
debug("Vcc %dV Vpp %dV, pcr %x, reset %d\n",
|
|
configure->vcc, configure->vpp, pcr, configure->reset);
|
|
|
|
|
|
switch(configure->vcc){
|
|
case 0: /* Vcc 0 */
|
|
pcr |= SET_VCC_VPP(0,0);
|
|
break;
|
|
case 50: /* Vcc 5V */
|
|
switch(configure->vpp) {
|
|
case 0:
|
|
pcr |= SET_VCC_VPP(2,0);
|
|
break;
|
|
case 50:
|
|
pcr |= SET_VCC_VPP(2,1);
|
|
break;
|
|
case 12:
|
|
pcr |= SET_VCC_VPP(2,2);
|
|
break;
|
|
case 33:
|
|
default:
|
|
pcr |= SET_VCC_VPP(0,0);
|
|
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(1,0);
|
|
break;
|
|
case 12:
|
|
pcr |= SET_VCC_VPP(1,2);
|
|
break;
|
|
case 33:
|
|
pcr |= SET_VCC_VPP(1,1);
|
|
break;
|
|
case 50:
|
|
default:
|
|
pcr |= SET_VCC_VPP(0,0);
|
|
printk("%s: bad Vcc/Vpp (%d:%d)\n",
|
|
__func__,
|
|
configure->vcc,
|
|
configure->vpp);
|
|
break;
|
|
}
|
|
break;
|
|
default: /* what's this ? */
|
|
pcr |= SET_VCC_VPP(0,0);
|
|
printk(KERN_ERR "%s: bad Vcc %d\n",
|
|
__func__, configure->vcc);
|
|
break;
|
|
}
|
|
|
|
au_writew(pcr, PCMCIA_BOARD_REG);
|
|
au_sync_delay(300);
|
|
|
|
if (!configure->reset) {
|
|
pcr |= PC_DRV_EN;
|
|
au_writew(pcr, PCMCIA_BOARD_REG);
|
|
au_sync_delay(100);
|
|
pcr |= PC_DEASSERT_RST;
|
|
au_writew(pcr, PCMCIA_BOARD_REG);
|
|
au_sync_delay(100);
|
|
}
|
|
else {
|
|
pcr &= ~(PC_DEASSERT_RST | PC_DRV_EN);
|
|
au_writew(pcr, PCMCIA_BOARD_REG);
|
|
au_sync_delay(100);
|
|
}
|
|
#endif
|
|
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
|
|
};
|