[PATCH][RFC] PCMCIA support for 8xx using platform devices
Vitaly Bordug
vitb at kernel.crashing.org
Wed Apr 18 12:53:39 EDT 2007
This utilizes PCMCIA on mpc885ads and mpc866ads from arch/powerpc. In the new approach,
direct IMMR accesses from within drivers/ were totally eliminated, that requires hardware_enable, hardware_disable, voltage_set board-specific functions to be moved over to BSP code section
(arch/powerpc/platforms/8xx in 885 case). There is just no way to have both arch/ppc and arch/powerpc approaches to work simultaneously because of that.
Signed-off-by: Vitaly Bordug <vitb at kernel.crashing.org>
---
However, BSP ifdef hell left untouched to be used as reference.
Any input is appreciated.
TIA!
arch/powerpc/boot/dts/mpc885ads.dts | 12 +
arch/powerpc/platforms/8xx/mpc885ads.h | 5
arch/powerpc/platforms/8xx/mpc885ads_setup.c | 63 +++++
arch/powerpc/sysdev/fsl_soc.c | 58 ++++
drivers/pcmcia/Kconfig | 1
drivers/pcmcia/m8xx_pcmcia.c | 342 ++++++++++++--------------
include/linux/fs_pcmcia_pd.h | 27 ++
7 files changed, 318 insertions(+), 190 deletions(-)
diff --git a/arch/powerpc/boot/dts/mpc885ads.dts b/arch/powerpc/boot/dts/mpc885ads.dts
index 90e047a..330ac91 100644
--- a/arch/powerpc/boot/dts/mpc885ads.dts
+++ b/arch/powerpc/boot/dts/mpc885ads.dts
@@ -112,6 +112,18 @@
compatible = "CPM";
};
+ pcmcia at 0080 {
+ linux,phandle = <0080>;
+ #interrupt-cells = <1>;
+ #size-cells = <2>;
+ compatible = "8xx";
+ device_type = "pcmcia";
+ reg = <80 80>;
+ clock-frequency = <2faf080>;
+ interrupt-parent = <ff000000>;
+ interrupts = <d 1>;
+ };
+
cpm at ff000000 {
linux,phandle = <ff000000>;
#address-cells = <1>;
diff --git a/arch/powerpc/platforms/8xx/mpc885ads.h b/arch/powerpc/platforms/8xx/mpc885ads.h
index 7c31aec..4439346 100644
--- a/arch/powerpc/platforms/8xx/mpc885ads.h
+++ b/arch/powerpc/platforms/8xx/mpc885ads.h
@@ -91,5 +91,10 @@ #define PC_ENET_RENA ((ushort)0x0800)
#define SICR_ENET_MASK ((uint)0x00ff0000)
#define SICR_ENET_CLKRT ((uint)0x002c0000)
+/* Some internal interrupt registers use an 8-bit mask for the interrupt
+ * level instead of a number.
+ */
+#define mk_int_int_mask(IL) (1 << (7 - (IL/2)))
+
#endif /* __ASM_MPC885ADS_H__ */
#endif /* __KERNEL__ */
diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
index 394f983..1ba423f 100644
--- a/arch/powerpc/platforms/8xx/mpc885ads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
@@ -22,6 +22,7 @@ #include <linux/root_dev.h>
#include <linux/fs_enet_pd.h>
#include <linux/fs_uart_pd.h>
+#include <linux/fs_pcmcia_pd.h>
#include <linux/mii.h>
#include <asm/delay.h>
@@ -375,6 +376,68 @@ static void init_i2c_ioports()
setbits16(&cp->cp_pbodr, 0x0030);
}
+void pcmcia_hw_setup(int slot, int enable)
+{
+ unsigned *bcsr_io;
+
+ bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
+ if (enable)
+ clrbits32(bcsr_io, BCSR1_PCCEN);
+ else
+ setbits32(bcsr_io, BCSR1_PCCEN);
+
+ iounmap(bcsr_io);
+}
+
+int pcmcia_set_voltage(int slot, int vcc, int vpp)
+{
+ u32 reg = 0;
+ unsigned *bcsr_io;
+
+ bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
+
+ switch(vcc) {
+ case 0:
+ break;
+ case 33:
+ reg |= BCSR1_PCCVCC0;
+ break;
+ case 50:
+ reg |= BCSR1_PCCVCC1;
+ break;
+ default:
+ return 1;
+ }
+
+ switch(vpp) {
+ case 0:
+ break;
+ case 33:
+ case 50:
+ if(vcc == vpp)
+ reg |= BCSR1_PCCVPP1;
+ else
+ return 1;
+ break;
+ case 120:
+ if ((vcc == 33) || (vcc == 50))
+ reg |= BCSR1_PCCVPP0;
+ else
+ return 1;
+ default:
+ return 1;
+ }
+
+ /* first, turn off all power */
+ clrbits32(bcsr_io, 0x00610000);
+
+ /* enable new powersettings */
+ setbits32(bcsr_io, reg);
+
+ iounmap(bcsr_io);
+ return 0;
+}
+
int platform_device_skip(char *model, int id)
{
#ifdef CONFIG_MPC8xx_SECOND_ETH_SCC3
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 355c05d..753118d 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -26,6 +26,7 @@ #include <linux/phy.h>
#include <linux/fsl_devices.h>
#include <linux/fs_enet_pd.h>
#include <linux/fs_uart_pd.h>
+#include <linux/fs_pcmcia_pd.h>
#include <asm/system.h>
#include <asm/atomic.h>
@@ -862,6 +863,8 @@ #ifdef CONFIG_8xx
extern void init_scc_ioports(struct fs_platform_info*);
extern int platform_device_skip(char *model, int id);
+extern void pcmcia_hw_setup(int slot, int enable);
+extern int pcmcia_set_voltage(int slot, int vcc, int vpp);
static int __init fs_enet_mdio_of_init(void)
{
@@ -1267,5 +1270,60 @@ err:
arch_initcall(fsl_i2c_cpm_of_init);
+static const char *pcmcia_regs = "regs";
+static const char *pcmcia_irq = "interrupt";
+
+static int __init fsl_pcmcia_of_init(void)
+{
+ struct device_node *np;
+ unsigned int i;
+ struct platform_device *pcmcia_dev;
+ int ret;
+
+ for (np = NULL, i = 0;
+ (np = of_find_compatible_node(np, "pcmcia", "8xx")) != NULL;
+ i++) {
+ struct resource r[2];
+ struct fs_pcmcia_platform_data pcmcia_data;
+
+ memset(&r, 0, sizeof(r));
+ memset(&pcmcia_data, 0, sizeof(pcmcia_data));
+
+ ret = of_address_to_resource(np, 0, &r[0]);
+ if (ret)
+ goto err;
+ r[0].name = pcmcia_regs;
+
+ r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
+ r[1].flags = IORESOURCE_IRQ;
+ r[1].name = pcmcia_irq;
+
+ pcmcia_data.hwirq = irq_map[r[1].start].hwirq;
+ pcmcia_data.hw_setup = pcmcia_hw_setup;
+ pcmcia_data.voltage_set = pcmcia_set_voltage;
+ pcmcia_data.bus_freq = ppc_proc_freq;
+
+ pcmcia_dev = platform_device_register_simple("m8xx-pcmcia", i, &r[0], 2);
+ if (IS_ERR(pcmcia_dev)) {
+ ret = PTR_ERR(pcmcia_dev);
+ goto err;
+ }
+ ret =
+ platform_device_add_data(pcmcia_dev, &pcmcia_data,
+ sizeof(struct
+ fs_pcmcia_platform_data));
+ if (ret)
+ goto unreg;
+ }
+
+ return 0;
+
+unreg:
+ platform_device_unregister(pcmcia_dev);
+err:
+ return ret;
+}
+
+arch_initcall(fsl_pcmcia_of_init);
#endif /* CONFIG_8xx */
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 35f8864..c3fd55d 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -183,6 +183,7 @@ config PCMCIA_M8XX
tristate "MPC8xx PCMCIA support"
depends on PCMCIA && PPC && 8xx
select PCCARD_IODYN
+ select PCCARD_NONSTATIC
help
Say Y here to include support for PowerPC 8xx series PCMCIA
controller.
diff --git a/drivers/pcmcia/m8xx_pcmcia.c b/drivers/pcmcia/m8xx_pcmcia.c
index 9721ed7..ddac883 100644
--- a/drivers/pcmcia/m8xx_pcmcia.c
+++ b/drivers/pcmcia/m8xx_pcmcia.c
@@ -40,10 +40,6 @@ #include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/string.h>
-#include <asm/io.h>
-#include <asm/bitops.h>
-#include <asm/system.h>
-
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
@@ -52,10 +48,16 @@ #include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
+#include <linux/fs_pcmcia_pd.h>
+#include <asm/io.h>
+#include <asm/bitops.h>
+#include <asm/system.h>
+#include <asm/time.h>
#include <asm/mpc8xx.h>
#include <asm/8xx_immap.h>
#include <asm/irq.h>
+#include <asm/fs_pd.h>
#include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
@@ -146,27 +148,18 @@ #endif
#define PCMCIA_MEM_WIN_BASE 0xe0000000 /* base address for memory window 0 */
#define PCMCIA_MEM_WIN_SIZE 0x04000000 /* each memory window is 64 MByte */
#define PCMCIA_IO_WIN_BASE _IO_BASE /* base address for io window 0 */
-
-#define PCMCIA_SCHLVL PCMCIA_INTERRUPT /* Status Change Interrupt Level */
-
/* ------------------------------------------------------------------------- */
-/* 2.4.x and newer has this always in HZ */
-#define M8XX_BUSFREQ ((((bd_t *)&(__res))->bi_busfreq))
-
-static int pcmcia_schlvl = PCMCIA_SCHLVL;
+static int pcmcia_schlvl;
-static DEFINE_SPINLOCK(events_lock);
+static spinlock_t events_lock = SPIN_LOCK_UNLOCKED;
#define PCMCIA_SOCKET_KEY_5V 1
#define PCMCIA_SOCKET_KEY_LV 2
/* look up table for pgcrx registers */
-static u32 *m8xx_pgcrx[2] = {
- &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pgcra,
- &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pgcrb
-};
+static u32 *m8xx_pgcrx[2];
/*
* This structure is used to address each window in the PCMCIA controller.
@@ -228,11 +221,16 @@ struct event_table {
u32 eventbit;
};
+static const char driver_name[] = "m8xx-pcmcia";
+
struct socket_info {
void (*handler)(void *info, u32 events);
void *info;
u32 slot;
+ pcmconf8xx_t *pcmcia;
+ struct platform_device *pdev;
+ struct fs_pcmcia_platform_data *pdata;
socket_state_t state;
struct pccard_mem_map mem_win[PCMCIA_MEM_WIN_NO];
@@ -404,83 +402,15 @@ static void hardware_disable(int slot)
#endif
/* MPC885ADS Boards */
-
#if defined(CONFIG_MPC885ADS)
#define PCMCIA_BOARD_MSG "MPC885ADS"
-
-static int voltage_set(int slot, int vcc, int vpp)
-{
- u32 reg = 0;
- unsigned *bcsr_io;
-
- bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
-
- switch(vcc) {
- case 0:
- break;
- case 33:
- reg |= BCSR1_PCCVCC0;
- break;
- case 50:
- reg |= BCSR1_PCCVCC1;
- break;
- default:
- goto out_unmap;
- }
-
- switch(vpp) {
- case 0:
- break;
- case 33:
- case 50:
- if(vcc == vpp)
- reg |= BCSR1_PCCVPP1;
- else
- goto out_unmap;
- break;
- case 120:
- if ((vcc == 33) || (vcc == 50))
- reg |= BCSR1_PCCVPP0;
- else
- goto out_unmap;
- default:
- goto out_unmap;
- }
-
- /* first, turn off all power */
- out_be32(bcsr_io, in_be32(bcsr_io) & ~(BCSR1_PCCVCC_MASK | BCSR1_PCCVPP_MASK));
-
- /* enable new powersettings */
- out_be32(bcsr_io, in_be32(bcsr_io) | reg);
-
- iounmap(bcsr_io);
- return 0;
-
-out_unmap:
- iounmap(bcsr_io);
- return 1;
-}
-
#define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
-static void hardware_enable(int slot)
-{
- unsigned *bcsr_io;
-
- bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
- out_be32(bcsr_io, in_be32(bcsr_io) & ~BCSR1_PCCEN);
- iounmap(bcsr_io);
-}
-
-static void hardware_disable(int slot)
-{
- unsigned *bcsr_io;
-
- bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
- out_be32(bcsr_io, in_be32(bcsr_io) | BCSR1_PCCEN);
- iounmap(bcsr_io);
-}
+/* These functions are defined in the board-specific code */
+#define hardware_enable(_slot_) pdata->hw_setup(_slot_, 1)
+#define hardware_disable(_slot_) pdata->hw_setup(_slot_, 0)
+#define voltage_set(slot, vcc, vpp) pdata->voltage_set(slot, vcc, vpp)
#endif
@@ -541,6 +471,7 @@ #define hardware_enable(_slot_) /* No h
#define hardware_disable(_slot_) /* No hardware to disable */
#endif /* CONFIG_MBX */
+/* Motorola MBX860 */
#if defined(CONFIG_PRxK)
#include <asm/cpld.h>
@@ -604,63 +535,22 @@ #define hardware_disable(_slot_) /* No h
#endif /* CONFIG_PRxK */
-static void m8xx_shutdown(void)
-{
- u32 m, i;
- struct pcmcia_win *w;
-
- for(i = 0; i < PCMCIA_SOCKETS_NO; i++){
- w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
-
- out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, M8XX_PCMCIA_MASK(i));
- out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) & ~M8XX_PCMCIA_MASK(i));
-
- /* turn off interrupt and disable CxOE */
- out_be32(M8XX_PGCRX(i), M8XX_PGCRX_CXOE);
-
- /* turn off memory windows */
- for(m = 0; m < PCMCIA_MEM_WIN_NO; m++) {
- out_be32(&w->or, 0); /* set to not valid */
- w++;
- }
-
- /* turn off voltage */
- voltage_set(i, 0, 0);
-
- /* disable external hardware */
- hardware_disable(i);
- }
-
- free_irq(pcmcia_schlvl, NULL);
-}
-
-static struct device_driver m8xx_driver = {
- .name = "m8xx-pcmcia",
- .bus = &platform_bus_type,
- .suspend = pcmcia_socket_dev_suspend,
- .resume = pcmcia_socket_dev_resume,
-};
-
-static struct platform_device m8xx_device = {
- .name = "m8xx-pcmcia",
- .id = 0,
-};
-
static u32 pending_events[PCMCIA_SOCKETS_NO];
-static DEFINE_SPINLOCK(pending_event_lock);
+static spinlock_t pending_event_lock = SPIN_LOCK_UNLOCKED;
static irqreturn_t m8xx_interrupt(int irq, void *dev)
{
struct socket_info *s;
struct event_table *e;
unsigned int i, events, pscr, pipr, per;
+ pcmconf8xx_t *pcmcia = socket[0].pcmcia;
dprintk("Interrupt!\n");
/* get interrupt sources */
- pscr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr);
- pipr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pipr);
- per = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per);
+ pscr = in_be32(&pcmcia->pcmc_pscr);
+ pipr = in_be32(&pcmcia->pcmc_pipr);
+ per = in_be32(&pcmcia->pcmc_per);
for(i = 0; i < PCMCIA_SOCKETS_NO; i++) {
s = &socket[i];
@@ -724,7 +614,7 @@ #endif
per &= ~M8XX_PCMCIA_RDY_L(0);
per &= ~M8XX_PCMCIA_RDY_L(1);
- out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, per);
+ out_be32(&pcmcia->pcmc_per, per);
if (events)
pcmcia_parse_events(&socket[i].socket, events);
@@ -732,7 +622,7 @@ #endif
}
/* clear the interrupt sources */
- out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, pscr);
+ out_be32(&pcmcia->pcmc_pscr, pscr);
dprintk("Interrupt done.\n");
@@ -753,7 +643,7 @@ static u32 m8xx_get_graycode(u32 size)
return k;
}
-static u32 m8xx_get_speed(u32 ns, u32 is_io)
+static u32 m8xx_get_speed(u32 ns, u32 is_io, u32 bus_freq)
{
u32 reg, clocks, psst, psl, psht;
@@ -781,7 +671,7 @@ static u32 m8xx_get_speed(u32 ns, u32 is
#define ADJ 180 /* 80 % longer accesstime - to be sure */
- clocks = ((M8XX_BUSFREQ / 1000) * ns) / 1000;
+ clocks = ((bus_freq / 1000) * ns) / 1000;
clocks = (clocks * ADJ) / (100*1000);
if(clocks >= PCMCIA_BMT_LIMIT) {
printk( "Max access time limit reached\n");
@@ -806,8 +696,9 @@ static int m8xx_get_status(struct pcmcia
int lsock = container_of(sock, struct socket_info, socket)->slot;
struct socket_info *s = &socket[lsock];
unsigned int pipr, reg;
+ pcmconf8xx_t *pcmcia = s->pcmcia;
- pipr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pipr);
+ pipr = in_be32(&pcmcia->pcmc_pipr);
*value = ((pipr & (M8XX_PCMCIA_CD1(lsock)
| M8XX_PCMCIA_CD2(lsock))) == 0) ? SS_DETECT : 0;
@@ -915,9 +806,11 @@ static int m8xx_set_socket(struct pcmcia
{
int lsock = container_of(sock, struct socket_info, socket)->slot;
struct socket_info *s = &socket[lsock];
+ struct fs_pcmcia_platform_data *pdata = s->pdata;
struct event_table *e;
unsigned int reg;
unsigned long flags;
+ pcmconf8xx_t *pcmcia = socket[0].pcmcia;
dprintk( "SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
"io_irq %d, csc_mask %#2.2x)\n", lsock, state->flags,
@@ -927,6 +820,7 @@ static int m8xx_set_socket(struct pcmcia
if(voltage_set(lsock, state->Vcc, state->Vpp))
return -EINVAL;
+
/* Take care of reset... */
if(state->flags & SS_RESET)
out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | M8XX_PGCRX_CXRESET); /* active high */
@@ -982,7 +876,8 @@ static int m8xx_set_socket(struct pcmcia
* If io_irq is non-zero we should enable irq.
*/
if(state->io_irq) {
- out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | mk_int_int_mask(state->io_irq) << 24);
+ int hwirq = s->pdata->hwirq;
+ out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | mk_int_int_mask(hwirq) << 24);
/*
* Strange thing here:
* The manual does not tell us which interrupt
@@ -1027,7 +922,7 @@ static int m8xx_set_socket(struct pcmcia
* Writing ones will clear the bits.
*/
- out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, reg);
+ out_be32(&pcmcia->pcmc_pscr, reg);
/*
* Write the mask.
@@ -1036,15 +931,8 @@ static int m8xx_set_socket(struct pcmcia
* Ones will enable the interrupt.
*/
- /*
- reg |= ((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per
- & M8XX_PCMCIA_MASK(lsock);
- */
-
- reg |= in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) &
- (M8XX_PCMCIA_MASK(0) | M8XX_PCMCIA_MASK(1));
-
- out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, reg);
+ reg |= in_be32(&pcmcia->pcmc_per) & (M8XX_PCMCIA_MASK(0) | M8XX_PCMCIA_MASK(1));
+ out_be32(&pcmcia->pcmc_per, reg);
spin_unlock_irqrestore(&events_lock, flags);
@@ -1062,6 +950,8 @@ static int m8xx_set_io_map(struct pcmcia
struct socket_info *s = &socket[lsock];
struct pcmcia_win *w;
unsigned int reg, winnr;
+ pcmconf8xx_t *pcmcia = s->pcmcia;
+
#define M8XX_SIZE (io->stop - io->start + 1)
#define M8XX_BASE (PCMCIA_IO_WIN_BASE + io->start)
@@ -1086,7 +976,7 @@ #define M8XX_BASE (PCMCIA_IO_WIN_BASE +
/* setup registers */
- w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
+ w = (void *) &pcmcia->pcmc_pbr0;
w += winnr;
out_be32(&w->or, 0); /* turn off window first */
@@ -1095,12 +985,13 @@ #define M8XX_BASE (PCMCIA_IO_WIN_BASE +
reg <<= 27;
reg |= M8XX_PCMCIA_POR_IO |(lsock << 2);
- reg |= m8xx_get_speed(io->speed, 1);
+ reg |= m8xx_get_speed(io->speed, 1, s->pdata->bus_freq);
if(io->flags & MAP_WRPROT)
reg |= M8XX_PCMCIA_POR_WRPROT;
- if(io->flags & (MAP_16BIT | MAP_AUTOSZ))
+ /*if(io->flags & (MAP_16BIT | MAP_AUTOSZ))*/
+ if(io->flags & MAP_16BIT)
reg |= M8XX_PCMCIA_POR_16BIT;
if(io->flags & MAP_ACTIVE)
@@ -1117,7 +1008,7 @@ #define M8XX_BASE (PCMCIA_IO_WIN_BASE +
/* setup registers */
- w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
+ w = (void *) &pcmcia->pcmc_pbr0;
w += winnr;
out_be32(&w->or, 0); /* turn off window */
@@ -1144,6 +1035,7 @@ static int m8xx_set_mem_map(struct pcmci
struct pcmcia_win *w;
struct pccard_mem_map *old;
unsigned int reg, winnr;
+ pcmconf8xx_t *pcmcia = s->pcmcia;
dprintk( "SetMemMap(%d, %d, %#2.2x, %d ns, "
"%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags,
@@ -1166,12 +1058,12 @@ static int m8xx_set_mem_map(struct pcmci
/* Setup the window in the pcmcia controller */
- w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
+ w = (void *) &pcmcia->pcmc_pbr0;
w += winnr;
reg |= lsock << 2;
- reg |= m8xx_get_speed(mem->speed, 0);
+ reg |= m8xx_get_speed(mem->speed, 0, s->pdata->bus_freq);
if(mem->flags & MAP_ATTRIB)
reg |= M8XX_PCMCIA_POR_ATTRMEM;
@@ -1236,57 +1128,69 @@ static int m8xx_sock_init(struct pcmcia_
}
-static int m8xx_suspend(struct pcmcia_socket *sock)
+static int m8xx_sock_suspend(struct pcmcia_socket *sock)
{
return m8xx_set_socket(sock, &dead_socket);
}
static struct pccard_operations m8xx_services = {
.init = m8xx_sock_init,
- .suspend = m8xx_suspend,
+ .suspend = m8xx_sock_suspend,
.get_status = m8xx_get_status,
.set_socket = m8xx_set_socket,
.set_io_map = m8xx_set_io_map,
.set_mem_map = m8xx_set_mem_map,
};
-static int __init m8xx_init(void)
+static int __init m8xx_probe(struct platform_device *pdev)
{
struct pcmcia_win *w;
- unsigned int i,m;
+ unsigned int i, m, hwirq;
+ pcmconf8xx_t *pcmcia;
+ int status;
+ struct resource *r;
+ struct fs_pcmcia_platform_data *pdata = pdev->dev.platform_data;
pcmcia_info("%s\n", version);
- if (driver_register(&m8xx_driver))
- return -1;
+ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
+
+ pcmcia = ioremap(r->start, r->end - r->start + 1);
+ if(pcmcia == NULL)
+ return -EINVAL;
+
+ pcmcia_schlvl = platform_get_irq_byname(pdev,"interrupt");
+ if (pcmcia_schlvl < 0)
+ return -EINVAL;
+ hwirq = pdata->hwirq;
+
+ m8xx_pgcrx[0] = &pcmcia->pcmc_pgcra;
+ m8xx_pgcrx[1] = &pcmcia->pcmc_pgcrb;
+
pcmcia_info(PCMCIA_BOARD_MSG " using " PCMCIA_SLOT_MSG
- " with IRQ %u.\n", pcmcia_schlvl);
+ " with IRQ %u (%d). \n", pcmcia_schlvl, hwirq);
/* Configure Status change interrupt */
- if(request_irq(pcmcia_schlvl, m8xx_interrupt, 0,
- "m8xx_pcmcia", NULL)) {
+ if(request_irq(pcmcia_schlvl, m8xx_interrupt, IRQF_SHARED,
+ driver_name, socket)) {
pcmcia_error("Cannot allocate IRQ %u for SCHLVL!\n",
pcmcia_schlvl);
return -1;
}
- w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
-
- out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr,
- M8XX_PCMCIA_MASK(0)| M8XX_PCMCIA_MASK(1));
+ w = (void *) &pcmcia->pcmc_pbr0;
- out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per,
- in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) &
- ~(M8XX_PCMCIA_MASK(0)| M8XX_PCMCIA_MASK(1)));
+ out_be32(&pcmcia->pcmc_pscr, M8XX_PCMCIA_MASK(0)| M8XX_PCMCIA_MASK(1));
+ clrbits32(&pcmcia->pcmc_per, M8XX_PCMCIA_MASK(0) | M8XX_PCMCIA_MASK(1));
-/* connect interrupt and disable CxOE */
+ /* connect interrupt and disable CxOE */
- out_be32(M8XX_PGCRX(0), M8XX_PGCRX_CXOE | (mk_int_int_mask(pcmcia_schlvl) << 16));
- out_be32(M8XX_PGCRX(1), M8XX_PGCRX_CXOE | (mk_int_int_mask(pcmcia_schlvl) << 16));
+ out_be32(M8XX_PGCRX(0), M8XX_PGCRX_CXOE | (mk_int_int_mask(hwirq) << 16));
+ out_be32(M8XX_PGCRX(1), M8XX_PGCRX_CXOE | (mk_int_int_mask(hwirq) << 16));
-/* intialize the fixed memory windows */
+ /* intialize the fixed memory windows */
for(i = 0; i < PCMCIA_SOCKETS_NO; i++){
for(m = 0; m < PCMCIA_MEM_WIN_NO; m++) {
@@ -1300,16 +1204,14 @@ static int __init m8xx_init(void)
}
}
-/* turn off voltage */
+ /* turn off voltage */
voltage_set(0, 0, 0);
voltage_set(1, 0, 0);
-/* Enable external hardware */
+ /* Enable external hardware */
hardware_enable(0);
hardware_enable(1);
- platform_device_register(&m8xx_device);
-
for (i = 0 ; i < PCMCIA_SOCKETS_NO; i++) {
socket[i].slot = i;
socket[i].socket.owner = THIS_MODULE;
@@ -1317,30 +1219,90 @@ static int __init m8xx_init(void)
socket[i].socket.irq_mask = 0x000;
socket[i].socket.map_size = 0x1000;
socket[i].socket.io_offset = 0;
- socket[i].socket.pci_irq = i ? 7 : 9;
+ socket[i].socket.pci_irq = pcmcia_schlvl;
socket[i].socket.ops = &m8xx_services;
- socket[i].socket.resource_ops = &pccard_iodyn_ops;
+ socket[i].socket.resource_ops = &pccard_nonstatic_ops;
socket[i].socket.cb_dev = NULL;
- socket[i].socket.dev.parent = &m8xx_device.dev;
+ socket[i].socket.dev.parent = &pdev->dev;
+ socket[i].pcmcia = pcmcia;
+ socket[i].pdata = pdata;
}
- for (i = 0; i < PCMCIA_SOCKETS_NO; i++)
- pcmcia_register_socket(&socket[i].socket);
+ for (i = 0; i < PCMCIA_SOCKETS_NO; i++) {
+ status = pcmcia_register_socket(&socket[i].socket);
+ if (status < 0)
+ pcmcia_error("Socket register failed\n");
+ }
return 0;
}
-static void __exit m8xx_exit(void)
+static int __exit m8xx_shutdown(struct platform_device *pdev)
{
- int i;
+ u32 m, i;
+ struct pcmcia_win *w;
+ pcmconf8xx_t *pcmcia = socket[0].pcmcia;
+ struct fs_pcmcia_platform_data *pdata = socket[0].pdata;
+
+ for(i = 0; i < PCMCIA_SOCKETS_NO; i++){
+ w = (void *) &pcmcia->pcmc_pbr0;
+
+ out_be32(&pcmcia->pcmc_pscr, M8XX_PCMCIA_MASK(i));
+ out_be32(&pcmcia->pcmc_per, in_be32(&pcmcia->pcmc_per) & ~M8XX_PCMCIA_MASK(i));
+
+ /* turn off interrupt and disable CxOE */
+ out_be32(M8XX_PGCRX(i), M8XX_PGCRX_CXOE);
+ /* turn off memory windows */
+ for(m = 0; m < PCMCIA_MEM_WIN_NO; m++) {
+ out_be32(&w->or, 0); /* set to not valid */
+ w++;
+ }
+
+ /* turn off voltage */
+ voltage_set(i, 0, 0);
+
+ /* disable external hardware */
+ hardware_disable(i);
+ }
for (i = 0; i < PCMCIA_SOCKETS_NO; i++)
pcmcia_unregister_socket(&socket[i].socket);
- m8xx_shutdown();
+ free_irq(pcmcia_schlvl, NULL);
+
+ return 0;
+}
+
+static int m8xx_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ return pcmcia_socket_dev_suspend(&pdev->dev, state);
+}
+
+static int m8xx_resume(struct platform_device *pdev)
+{
+ return pcmcia_socket_dev_resume(&pdev->dev);
+}
- platform_device_unregister(&m8xx_device);
- driver_unregister(&m8xx_driver);
+static struct platform_driver m8xx_driver = {
+ .driver = {
+ .name = (char *) driver_name,
+ .owner = THIS_MODULE,
+ },
+ .probe = m8xx_probe,
+ .remove = __exit_p(m8xx_shutdown),
+ .suspend = m8xx_suspend,
+ .resume = m8xx_resume,
+};
+
+
+static int __init m8xx_init(void)
+{
+ return platform_driver_register(&m8xx_driver);
+}
+
+static void __exit m8xx_exit(void)
+{
+ platform_driver_unregister(&m8xx_driver);
}
module_init(m8xx_init);
diff --git a/include/linux/fs_pcmcia_pd.h b/include/linux/fs_pcmcia_pd.h
new file mode 100644
index 0000000..2769a11
--- /dev/null
+++ b/include/linux/fs_pcmcia_pd.h
@@ -0,0 +1,27 @@
+/*
+ * Platform information definitions for the CPM Uart driver.
+ *
+ * 2007 (c) MontaVista Software, Inc.
+ * Yuri Shpilevsky <yshpilevsky at ru.mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef FS_PCMCIA_PD_H
+#define FS_PCMCIA_PD_H
+
+#include <linux/version.h>
+#include <asm/types.h>
+
+struct fs_pcmcia_platform_data {
+ void(*hw_setup)(int slot, int enable);
+ int(*voltage_set)(int slot, int vcc, int vpp);
+
+ /* device specific information */
+ int hwirq;
+ u32 bus_freq;
+};
+
+#endif
--
Sincerely,
Vitaly
--
Sincerely,
Vitaly
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