patch-2.4.13 linux/drivers/pcmcia/sa1100_adsbitsy.c
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- Lines: 217
- Date:
Thu Oct 11 09:43:29 2001
- Orig file:
v2.4.12/linux/drivers/pcmcia/sa1100_adsbitsy.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.12/linux/drivers/pcmcia/sa1100_adsbitsy.c linux/drivers/pcmcia/sa1100_adsbitsy.c
@@ -0,0 +1,216 @@
+/*
+ * drivers/pcmcia/sa1100_adsbitsy.c
+ *
+ * PCMCIA implementation routines for ADS Bitsy
+ *
+ * 9/18/01 Woojung
+ * Fixed wrong PCMCIA voltage setting
+ *
+ * 7/5/01 Woojung Huh <whuh@applieddata.net>
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/sched.h>
+
+#include <asm/delay.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/arch/pcmcia.h>
+
+static int adsbitsy_pcmcia_init(struct pcmcia_init *init)
+{
+ int return_val=0;
+
+ /* Set GPIO_A<3:0> to be outputs for PCMCIA/CF power controller: */
+ PA_DDR &= ~(GPIO_GPIO0 | GPIO_GPIO1 | GPIO_GPIO2 | GPIO_GPIO3);
+
+ /* Disable Power 3.3V/5V for PCMCIA/CF */
+ PA_DWR |= GPIO_GPIO0 | GPIO_GPIO1 | GPIO_GPIO2 | GPIO_GPIO3;
+
+ INTPOL1 |= (1 << (S0_READY_NINT - SA1111_IRQ(32))) |
+ (1 << (S1_READY_NINT - SA1111_IRQ(32))) |
+ (1 << (S0_CD_VALID - SA1111_IRQ(32))) |
+ (1 << (S1_CD_VALID - SA1111_IRQ(32))) |
+ (1 << (S0_BVD1_STSCHG - SA1111_IRQ(32))) |
+ (1 << (S1_BVD1_STSCHG - SA1111_IRQ(32)));
+
+ return_val+=request_irq(S0_CD_VALID, init->handler, SA_INTERRUPT,
+ "GC Master PCMCIA (0) CD", NULL);
+ return_val+=request_irq(S1_CD_VALID, init->handler, SA_INTERRUPT,
+ "GC Master CF (1) CD", NULL);
+ return_val+=request_irq(S0_BVD1_STSCHG, init->handler, SA_INTERRUPT,
+ "GC Master PCMCIA (0) BVD1", NULL);
+ return_val+=request_irq(S1_BVD1_STSCHG, init->handler, SA_INTERRUPT,
+ "GC Master CF (1) BVD1", NULL);
+
+ MECR = 0x09430943;
+
+ return (return_val<0) ? -1 : 2;
+}
+
+static int adsbitsy_pcmcia_shutdown(void)
+{
+
+ free_irq(S0_CD_VALID, NULL);
+ free_irq(S1_CD_VALID, NULL);
+ free_irq(S0_BVD1_STSCHG, NULL);
+ free_irq(S1_BVD1_STSCHG, NULL);
+
+ INTPOL1 &= ~((1 << (S0_CD_VALID - SA1111_IRQ(32))) |
+ (1 << (S1_CD_VALID - SA1111_IRQ(32))) |
+ (1 << (S0_BVD1_STSCHG - SA1111_IRQ(32))) |
+ (1 << (S1_BVD1_STSCHG - SA1111_IRQ(32))));
+
+ return 0;
+}
+
+static int adsbitsy_pcmcia_socket_state(struct pcmcia_state_array *state_array)
+{
+ unsigned long status;
+ int return_val=1;
+
+ if(state_array->size<2) return -1;
+
+ memset(state_array->state, 0,
+ (state_array->size)*sizeof(struct pcmcia_state));
+
+ status=PCSR;
+
+ state_array->state[0].detect=((status & PCSR_S0_DETECT)==0)?1:0;
+
+ state_array->state[0].ready=((status & PCSR_S0_READY)==0)?0:1;
+
+ state_array->state[0].bvd1=((status & PCSR_S0_BVD1)==0)?0:1;
+
+ state_array->state[0].bvd2=((status & PCSR_S0_BVD2)==0)?0:1;
+
+ state_array->state[0].wrprot=((status & PCSR_S0_WP)==0)?0:1;
+
+ state_array->state[0].vs_3v=((status & PCSR_S0_VS1)==0)?1:0;
+
+ state_array->state[0].vs_Xv=((status & PCSR_S0_VS2)==0)?1:0;
+
+ state_array->state[1].detect=((status & PCSR_S1_DETECT)==0)?1:0;
+
+ state_array->state[1].ready=((status & PCSR_S1_READY)==0)?0:1;
+
+ state_array->state[1].bvd1=((status & PCSR_S1_BVD1)==0)?0:1;
+
+ state_array->state[1].bvd2=((status & PCSR_S1_BVD2)==0)?0:1;
+
+ state_array->state[1].wrprot=((status & PCSR_S1_WP)==0)?0:1;
+
+ state_array->state[1].vs_3v=((status & PCSR_S1_VS1)==0)?1:0;
+
+ state_array->state[1].vs_Xv=((status & PCSR_S1_VS2)==0)?1:0;
+
+ return return_val;
+}
+
+static int adsbitsy_pcmcia_get_irq_info(struct pcmcia_irq_info *info)
+{
+
+ switch(info->sock){
+ case 0:
+ info->irq=S0_READY_NINT;
+ break;
+
+ case 1:
+ info->irq=S1_READY_NINT;
+ break;
+
+ default:
+ return -1;
+ }
+
+ return 0;
+}
+
+static int adsbitsy_pcmcia_configure_socket(const struct pcmcia_configure *configure)
+{
+ unsigned long pccr=PCCR, gpio=PA_DWR;
+
+ switch(configure->sock){
+ case 0:
+
+ switch(configure->vcc){
+ case 0:
+ pccr = (pccr & ~PCCR_S0_FLT);
+ gpio |= GPIO_GPIO0 | GPIO_GPIO1;
+ break;
+
+ case 33:
+ pccr = (pccr & ~PCCR_S0_PSE) | PCCR_S0_FLT | PCCR_S0_PWAITEN;
+ gpio &= ~(GPIO_GPIO0 | GPIO_GPIO1);
+ gpio &= ~GPIO_GPIO0;
+ break;
+
+ case 50:
+ pccr = (pccr | PCCR_S0_PSE | PCCR_S0_FLT | PCCR_S0_PWAITEN);
+ gpio &= ~(GPIO_GPIO0 | GPIO_GPIO1);
+ gpio |= GPIO_GPIO0;
+ break;
+
+ default:
+ printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,
+ configure->vcc);
+ return -1;
+ }
+
+ pccr=(configure->reset)?(pccr | PCCR_S0_RST):(pccr & ~PCCR_S0_RST);
+
+ break;
+
+ case 1:
+ switch(configure->vcc){
+ case 0:
+ pccr = (pccr & ~PCCR_S1_FLT);
+ gpio &= ~(GPIO_GPIO2 | GPIO_GPIO3);
+ break;
+
+ case 33:
+ pccr = (pccr & ~PCCR_S1_PSE) | PCCR_S1_FLT | PCCR_S1_PWAITEN;
+ gpio &= ~(GPIO_GPIO2 | GPIO_GPIO3);
+ gpio |= GPIO_GPIO2;
+ break;
+
+ case 50:
+ pccr = (pccr | PCCR_S1_PSE | PCCR_S1_FLT | PCCR_S1_PWAITEN);
+ gpio &= ~(GPIO_GPIO2 | GPIO_GPIO3);
+ gpio |= GPIO_GPIO3;
+ break;
+
+ default:
+ printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __FUNCTION__,
+ configure->vcc);
+ return -1;
+ }
+
+ if(configure->vpp!=configure->vcc && configure->vpp!=0){
+ printk(KERN_ERR "%s(): CF slot cannot support Vpp %u\n", __FUNCTION__,
+ configure->vpp);
+ return -1;
+ }
+
+ pccr=(configure->reset)?(pccr | PCCR_S1_RST):(pccr & ~PCCR_S1_RST);
+
+ break;
+
+ default:
+ return -1;
+ }
+
+ PCCR = pccr;
+ PA_DWR = gpio;
+
+ return 0;
+}
+
+struct pcmcia_low_level adsbitsy_pcmcia_ops = {
+ adsbitsy_pcmcia_init,
+ adsbitsy_pcmcia_shutdown,
+ adsbitsy_pcmcia_socket_state,
+ adsbitsy_pcmcia_get_irq_info,
+ adsbitsy_pcmcia_configure_socket
+};
+
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)