diff options
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/Kconfig | 21 | ||||
| -rw-r--r-- | drivers/pcmcia/Makefile | 12 | ||||
| -rw-r--r-- | drivers/pcmcia/au1000_db1x00.c | 305 | ||||
| -rw-r--r-- | drivers/pcmcia/au1000_generic.c | 10 | ||||
| -rw-r--r-- | drivers/pcmcia/au1000_generic.h | 18 | ||||
| -rw-r--r-- | drivers/pcmcia/au1000_pb1x00.c | 119 | ||||
| -rw-r--r-- | drivers/pcmcia/au1000_xxs1500.c | 188 | ||||
| -rw-r--r-- | drivers/pcmcia/db1xxx_ss.c | 623 | ||||
| -rw-r--r-- | drivers/pcmcia/xxs1500_ss.c | 350 |
9 files changed, 1003 insertions, 643 deletions
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index e8f35dac2d5..0a6601c7680 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -173,6 +173,27 @@ config PCMCIA_AU1X00 tristate "Au1x00 pcmcia support" depends on SOC_AU1X00 && PCMCIA +config PCMCIA_ALCHEMY_DEVBOARD + tristate "Alchemy Db/Pb1xxx PCMCIA socket services" + depends on SOC_AU1X00 && PCMCIA + select 64BIT_PHYS_ADDR + help + Enable this driver of you want PCMCIA support on your Alchemy + Db1000, Db/Pb1100, Db/Pb1500, Db/Pb1550, Db/Pb1200 board. + NOT suitable for the PB1000! + + This driver is also available as a module called db1xxx_ss.ko + +config PCMCIA_XXS1500 + tristate "MyCable XXS1500 PCMCIA socket support" + depends on PCMCIA && MIPS_XXS1500 + select 64BIT_PHYS_ADDR + help + Support for the PCMCIA/CF socket interface on MyCable XXS1500 + systems. + + This driver is also available as a module called xxs1500_ss.ko + config PCMCIA_BCM63XX tristate "bcm63xx pcmcia support" depends on BCM63XX && PCMCIA diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile index 3c83f68c803..381b031d9d7 100644 --- a/drivers/pcmcia/Makefile +++ b/drivers/pcmcia/Makefile @@ -35,18 +35,10 @@ obj-$(CONFIG_OMAP_CF) += omap_cf.o obj-$(CONFIG_BFIN_CFPCMCIA) += bfin_cf_pcmcia.o obj-$(CONFIG_AT91_CF) += at91_cf.o obj-$(CONFIG_ELECTRA_CF) += electra_cf.o +obj-$(CONFIG_PCMCIA_ALCHEMY_DEVBOARD) += db1xxx_ss.o au1x00_ss-y += au1000_generic.o au1x00_ss-$(CONFIG_MIPS_PB1000) += au1000_pb1x00.o -au1x00_ss-$(CONFIG_MIPS_PB1100) += au1000_pb1x00.o -au1x00_ss-$(CONFIG_MIPS_PB1200) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_PB1500) += au1000_pb1x00.o -au1x00_ss-$(CONFIG_MIPS_DB1000) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_DB1100) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_DB1200) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_DB1500) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_DB1550) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_XXS1500) += au1000_xxs1500.o sa1111_cs-y += sa1111_generic.o sa1111_cs-$(CONFIG_ASSABET_NEPONSET) += sa1100_neponset.o @@ -76,3 +68,5 @@ pxa2xx-obj-$(CONFIG_MACH_E740) += pxa2xx_e740.o pxa2xx-obj-$(CONFIG_MACH_STARGATE2) += pxa2xx_stargate2.o obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_base.o $(pxa2xx-obj-y) + +obj-$(CONFIG_PCMCIA_XXS1500) += xxs1500_ss.o diff --git a/drivers/pcmcia/au1000_db1x00.c b/drivers/pcmcia/au1000_db1x00.c deleted file mode 100644 index c78d77fd7e3..00000000000 --- a/drivers/pcmcia/au1000_db1x00.c +++ /dev/null @@ -1,305 +0,0 @@ -/* - * - * 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> - -#if defined(CONFIG_MIPS_DB1200) - #include <db1200.h> -#elif defined(CONFIG_MIPS_PB1200) - #include <pb1200.h> -#else - #include <asm/mach-db1x00/db1x00.h> - static BCSR * const bcsr = (BCSR *)BCSR_KSEG1_ADDR; -#endif - -#include "au1000_generic.h" - -#if 0 -#define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args) -#else -#define debug(x,args...) -#endif - - -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; -#elif defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200) - skt->irq = skt->nr ? BOARD_PC1_INT : BOARD_PC0_INT; -#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; -#if defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200) - inserted = BOARD_CARD_INSERTED(0); -#else - inserted = !(bcsr->status & (1<<4)); -#endif - break; - case 1: - vs = (bcsr->status & 0xC)>>2; -#if defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200) - inserted = BOARD_CARD_INSERTED(1); -#else - inserted = !(bcsr->status & (1<<5)); -#endif - 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", - __func__, - 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", - __func__, - 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", - __func__, 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 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; -} diff --git a/drivers/pcmcia/au1000_generic.c b/drivers/pcmcia/au1000_generic.c index 02088704ac2..171c8a65488 100644 --- a/drivers/pcmcia/au1000_generic.c +++ b/drivers/pcmcia/au1000_generic.c @@ -405,18 +405,16 @@ int au1x00_pcmcia_socket_probe(struct device *dev, struct pcmcia_low_level *ops, skt->virt_io = (void *) (ioremap((phys_t)AU1X_SOCK0_IO, 0x1000) - (u32)mips_io_port_base); - skt->phys_attr = AU1X_SOCK0_PSEUDO_PHYS_ATTR; - skt->phys_mem = AU1X_SOCK0_PSEUDO_PHYS_MEM; + skt->phys_attr = AU1X_SOCK0_PHYS_ATTR; + skt->phys_mem = AU1X_SOCK0_PHYS_MEM; } -#ifndef CONFIG_MIPS_XXS1500 else { skt->virt_io = (void *) (ioremap((phys_t)AU1X_SOCK1_IO, 0x1000) - (u32)mips_io_port_base); - skt->phys_attr = AU1X_SOCK1_PSEUDO_PHYS_ATTR; - skt->phys_mem = AU1X_SOCK1_PSEUDO_PHYS_MEM; + skt->phys_attr = AU1X_SOCK1_PHYS_ATTR; + skt->phys_mem = AU1X_SOCK1_PHYS_MEM; } -#endif pcmcia_base_vaddrs[i] = (u32 *)skt->virt_io; ret = ops->hw_init(skt); diff --git a/drivers/pcmcia/au1000_generic.h b/drivers/pcmcia/au1000_generic.h index 13a4fbc5871..a324d329dea 100644 --- a/drivers/pcmcia/au1000_generic.h +++ b/drivers/pcmcia/au1000_generic.h @@ -36,30 +36,14 @@ #define AU1X_SOCK0_IO 0xF00000000ULL #define AU1X_SOCK0_PHYS_ATTR 0xF40000000ULL #define AU1X_SOCK0_PHYS_MEM 0xF80000000ULL -/* pseudo 32 bit phys addresses, which get fixed up to the - * real 36 bit address in fixup_bigphys_addr() */ -#define AU1X_SOCK0_PSEUDO_PHYS_ATTR 0xF4000000 -#define AU1X_SOCK0_PSEUDO_PHYS_MEM 0xF8000000 /* pcmcia socket 1 needs external glue logic so the memory map * differs from board to board. */ -#if defined(CONFIG_MIPS_PB1000) || defined(CONFIG_MIPS_PB1100) || \ - defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_PB1550) || \ - defined(CONFIG_MIPS_PB1200) +#if defined(CONFIG_MIPS_PB1000) #define AU1X_SOCK1_IO 0xF08000000ULL #define AU1X_SOCK1_PHYS_ATTR 0xF48000000ULL #define AU1X_SOCK1_PHYS_MEM 0xF88000000ULL -#define AU1X_SOCK1_PSEUDO_PHYS_ATTR 0xF4800000 -#define AU1X_SOCK1_PSEUDO_PHYS_MEM 0xF8800000 -#elif defined(CONFIG_MIPS_DB1000) || defined(CONFIG_MIPS_DB1100) || \ - defined(CONFIG_MIPS_DB1500) || defined(CONFIG_MIPS_DB1550) || \ - defined(CONFIG_MIPS_DB1200) -#define AU1X_SOCK1_IO 0xF04000000ULL -#define AU1X_SOCK1_PHYS_ATTR 0xF44000000ULL -#define AU1X_SOCK1_PHYS_MEM 0xF84000000ULL -#define AU1X_SOCK1_PSEUDO_PHYS_ATTR 0xF4400000 -#define AU1X_SOCK1_PSEUDO_PHYS_MEM 0xF8400000 #endif struct pcmcia_state { diff --git a/drivers/pcmcia/au1000_pb1x00.c b/drivers/pcmcia/au1000_pb1x00.c index b1984ed72d1..5a979cb8f3e 100644 --- a/drivers/pcmcia/au1000_pb1x00.c +++ b/drivers/pcmcia/au1000_pb1x00.c @@ -1,6 +1,6 @@ /* * - * Alchemy Semi Pb1x00 boards specific pcmcia routines. + * Alchemy Semi Pb1000 boards specific pcmcia routines. * * Copyright 2002 MontaVista Software Inc. * Author: MontaVista Software, Inc. @@ -46,20 +46,11 @@ #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; @@ -74,21 +65,10 @@ static int pb1x00_pcmcia_init(struct pcmcia_init *init) 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); @@ -96,14 +76,6 @@ static int pb1x00_pcmcia_shutdown(void) 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 @@ -112,21 +84,11 @@ 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; @@ -203,7 +165,6 @@ pb1x00_pcmcia_configure_socket(const struct pcmcia_configure *configure) if(configure->sock > PCMCIA_MAX_SOCK) return -1; -#ifdef CONFIG_MIPS_PB1000 pcr = au_readl(PB1000_PCR); if (configure->sock == 0) { @@ -323,84 +284,6 @@ pb1x00_pcmcia_configure_socket(const struct pcmcia_configure *configure) 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; } diff --git a/drivers/pcmcia/au1000_xxs1500.c b/drivers/pcmcia/au1000_xxs1500.c deleted file mode 100644 index b43d47b5081..00000000000 --- a/drivers/pcmcia/au1000_xxs1500.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - * - * 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/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/cs_types.h> -#include <pcmcia/cs.h> -#include <pcmcia/ss.h> -#include <pcmcia/cistpl.h> -#include <pcmcia/bus_ops.h> - -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/system.h> - -#include <asm/au1000.h> -#include <asm/au1000_pcmcia.h> - -#define PCMCIA_MAX_SOCK 0 -#define PCMCIA_NUM_SOCKS (PCMCIA_MAX_SOCK + 1) -#define PCMCIA_IRQ AU1000_GPIO_4 - -#if 0 -#define DEBUG(x, args...) printk(__func__ ": " 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 -}; diff --git a/drivers/pcmcia/db1xxx_ss.c b/drivers/pcmcia/db1xxx_ss.c new file mode 100644 index 00000000000..3889cf07d6c --- /dev/null +++ b/drivers/pcmcia/db1xxx_ss.c @@ -0,0 +1,623 @@ +/* + * PCMCIA socket code for the Alchemy Db1xxx/Pb1xxx boards. + * + * Copyright (c) 2009 Manuel Lauss <manuel.lauss@gmail.com> + * + */ + +/* This is a fairly generic PCMCIA socket driver suitable for the + * following Alchemy Development boards: + * Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200. + * + * The Db1000 is used as a reference: Per-socket card-, carddetect- and + * statuschange IRQs connected to SoC GPIOs, control and status register + * bits arranged in per-socket groups in an external PLD. All boards + * listed here use this layout, including bit positions and meanings. + * Of course there are exceptions in later boards: + * + * - Pb1100/Pb1500: single socket only; voltage key bits VS are + * at STATUS[5:4] (instead of STATUS[1:0]). + * - Au1200-based: additional card-eject irqs, irqs not gpios! + */ + +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/interrupt.h> +#include <linux/pm.h> +#include <linux/platform_device.h> +#include <linux/resource.h> +#include <linux/spinlock.h> + +#include <pcmcia/cs_types.h> +#include <pcmcia/ss.h> + +#include <asm/mach-au1x00/au1000.h> +#include <asm/mach-db1x00/bcsr.h> + +#define MEM_MAP_SIZE 0x400000 +#define IO_MAP_SIZE 0x1000 + +struct db1x_pcmcia_sock { + struct pcmcia_socket socket; + int nr; /* socket number */ + void *virt_io; + + /* the "pseudo" addresses of the PCMCIA space. */ + phys_addr_t phys_io; + phys_addr_t phys_attr; + phys_addr_t phys_mem; + + /* previous flags for set_socket() */ + unsigned int old_flags; + + /* interrupt sources: linux irq numbers! */ + int insert_irq; /* default carddetect irq */ + int stschg_irq; /* card-status-change irq */ + int card_irq; /* card irq */ + int eject_irq; /* db1200/pb1200 have these */ + +#define BOARD_TYPE_DEFAULT 0 /* most boards */ +#define BOARD_TYPE_DB1200 1 /* IRQs aren't gpios */ +#define BOARD_TYPE_PB1100 2 /* VS bits slightly different */ + int board_type; +}; + +#define to_db1x_socket(x) container_of(x, struct db1x_pcmcia_sock, socket) + +/* DB/PB1200: check CPLD SIGSTATUS register bit 10/12 */ +static int db1200_card_inserted(struct db1x_pcmcia_sock *sock) +{ + unsigned short sigstat; + + sigstat = bcsr_read(BCSR_SIGSTAT); + return sigstat & 1 << (8 + 2 * sock->nr); +} + +/* carddetect gpio: low-active */ +static int db1000_card_inserted(struct db1x_pcmcia_sock *sock) +{ + return !gpio_get_value(irq_to_gpio(sock->insert_irq)); +} + +static int db1x_card_inserted(struct db1x_pcmcia_sock *sock) +{ + switch (sock->board_type) { + case BOARD_TYPE_DB1200: + return db1200_card_inserted(sock); + default: + return db1000_card_inserted(sock); + } +} + +/* STSCHG tends to bounce heavily when cards are inserted/ejected. + * To avoid this, the interrupt is normally disabled and only enabled + * after reset to a card has been de-asserted. + */ +static inline void set_stschg(struct db1x_pcmcia_sock *sock, int en) +{ + if (sock->stschg_irq != -1) { + if (en) + enable_irq(sock->stschg_irq); + else + disable_irq(sock->stschg_irq); + } +} + +static irqreturn_t db1000_pcmcia_cdirq(int irq, void *data) +{ + struct db1x_pcmcia_sock *sock = data; + + pcmcia_parse_events(&sock->socket, SS_DETECT); + + return IRQ_HANDLED; +} + +static irqreturn_t db1000_pcmcia_stschgirq(int irq, void *data) +{ + struct db1x_pcmcia_sock *sock = data; + + pcmcia_parse_events(&sock->socket, SS_STSCHG); + + return IRQ_HANDLED; +} + +static irqreturn_t db1200_pcmcia_cdirq(int irq, void *data) +{ + struct db1x_pcmcia_sock *sock = data; + + /* Db/Pb1200 have separate per-socket insertion and ejection + * interrupts which stay asserted as long as the card is + * inserted/missing. The one which caused us to be called + * needs to be disabled and the other one enabled. + */ + if (irq == sock->insert_irq) { + disable_irq_nosync(sock->insert_irq); + enable_irq(sock->eject_irq); + } else { + disable_irq_nosync(sock->eject_irq); + enable_irq(sock->insert_irq); + } + + pcmcia_parse_events(&sock->socket, SS_DETECT); + + return IRQ_HANDLED; +} + +static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock) +{ + int ret; + unsigned long flags; + + if (sock->stschg_irq != -1) { + ret = request_irq(sock->stschg_irq, db1000_pcmcia_stschgirq, + 0, "pcmcia_stschg", sock); + if (ret) + return ret; + } + + /* Db/Pb1200 have separate per-socket insertion and ejection + * interrupts, which should show edge behaviour but don't. + * So interrupts are disabled until both insertion and + * ejection handler have been registered and the currently + * active one disabled. + */ + if (sock->board_type == BOARD_TYPE_DB1200) { + local_irq_save(flags); + + ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq, + IRQF_DISABLED, "pcmcia_insert", sock); + if (ret) + goto out1; + + ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq, + IRQF_DISABLED, "pcmcia_eject", sock); + if (ret) { + free_irq(sock->insert_irq, sock); + local_irq_restore(flags); + goto out1; + } + + /* disable the currently active one */ + if (db1200_card_inserted(sock)) + disable_irq_nosync(sock->insert_irq); + else + disable_irq_nosync(sock->eject_irq); + + local_irq_restore(flags); + } else { + /* all other (older) Db1x00 boards use a GPIO to show + * card detection status: use both-edge triggers. + */ + set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH); + ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq, + 0, "pcmcia_carddetect", sock); + + if (ret) + goto out1; + } + + return 0; /* all done */ + +out1: + if (sock->stschg_irq != -1) + free_irq(sock->stschg_irq, sock); + + return ret; +} + +static void db1x_pcmcia_free_irqs(struct db1x_pcmcia_sock *sock) +{ + if (sock->stschg_irq != -1) + free_irq(sock->stschg_irq, sock); + + free_irq(sock->insert_irq, sock); + if (sock->eject_irq != -1) + free_irq(sock->eject_irq, sock); +} + +/* + * configure a PCMCIA socket on the Db1x00 series of boards (and + * compatibles). + * + * 2 external registers are involved: + * pcmcia_status (offset 0x04): bits [0:1/2:3]: read card voltage id + * pcmcia_control(offset 0x10): + * bits[0:1] set vcc for card + * bits[2:3] set vpp for card + * bit 4: enable data buffers + * bit 7: reset# for card + * add 8 for second socket. + */ +static int db1x_pcmcia_configure(struct pcmcia_socket *skt, + struct socket_state_t *state) +{ + struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); + unsigned short cr_clr, cr_set; + unsigned int changed; + int v, p, ret; + + /* card voltage setup */ + cr_clr = (0xf << (sock->nr * 8)); /* clear voltage settings */ + cr_set = 0; + v = p = ret = 0; + + switch (state->Vcc) { + case 50: + ++v; + case 33: + ++v; + case 0: + break; + default: + printk(KERN_INFO "pcmcia%d unsupported Vcc %d\n", + sock->nr, state->Vcc); + } + + switch (state->Vpp) { + case 12: + ++p; + case 33: + case 50: + ++p; + case 0: + break; + default: + printk(KERN_INFO "pcmcia%d unsupported Vpp %d\n", + sock->nr, state->Vpp); + } + + /* sanity check: Vpp must be 0, 12, or Vcc */ + if (((state->Vcc == 33) && (state->Vpp == 50)) || + ((state->Vcc == 50) && (state->Vpp == 33))) { + printk(KERN_INFO "pcmcia%d bad Vcc/Vpp combo (%d %d)\n", + sock->nr, state->Vcc, state->Vpp); + v = p = 0; + ret = -EINVAL; + } + + /* create new voltage code */ + cr_set |= ((v << 2) | p) << (sock->nr * 8); + + changed = state->flags ^ sock->old_flags; + + if (changed & SS_RESET) { + if (state->flags & SS_RE |