diff options
Diffstat (limited to 'arch/sh/boards/superh/microdev/irq.c')
| -rw-r--r-- | arch/sh/boards/superh/microdev/irq.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/arch/sh/boards/superh/microdev/irq.c b/arch/sh/boards/superh/microdev/irq.c deleted file mode 100644 index 4d335077a3f..00000000000 --- a/arch/sh/boards/superh/microdev/irq.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * arch/sh/boards/superh/microdev/irq.c - * - * Copyright (C) 2003 Sean McGoogan (Sean.McGoogan@superh.com) - * - * SuperH SH4-202 MicroDev board support. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - */ - -#include <linux/init.h> -#include <linux/irq.h> -#include <linux/interrupt.h> -#include <asm/system.h> -#include <asm/io.h> -#include <asm/microdev.h> - -#define NUM_EXTERNAL_IRQS 16 /* IRL0 .. IRL15 */ - -static const struct { - unsigned char fpgaIrq; - unsigned char mapped; - const char *name; -} fpgaIrqTable[NUM_EXTERNAL_IRQS] = { - { 0, 0, "unused" }, /* IRQ #0 IRL=15 0x200 */ - { MICRODEV_FPGA_IRQ_KEYBOARD, 1, "keyboard" }, /* IRQ #1 IRL=14 0x220 */ - { MICRODEV_FPGA_IRQ_SERIAL1, 1, "Serial #1"}, /* IRQ #2 IRL=13 0x240 */ - { MICRODEV_FPGA_IRQ_ETHERNET, 1, "Ethernet" }, /* IRQ #3 IRL=12 0x260 */ - { MICRODEV_FPGA_IRQ_SERIAL2, 0, "Serial #2"}, /* IRQ #4 IRL=11 0x280 */ - { 0, 0, "unused" }, /* IRQ #5 IRL=10 0x2a0 */ - { 0, 0, "unused" }, /* IRQ #6 IRL=9 0x2c0 */ - { MICRODEV_FPGA_IRQ_USB_HC, 1, "USB" }, /* IRQ #7 IRL=8 0x2e0 */ - { MICRODEV_IRQ_PCI_INTA, 1, "PCI INTA" }, /* IRQ #8 IRL=7 0x300 */ - { MICRODEV_IRQ_PCI_INTB, 1, "PCI INTB" }, /* IRQ #9 IRL=6 0x320 */ - { MICRODEV_IRQ_PCI_INTC, 1, "PCI INTC" }, /* IRQ #10 IRL=5 0x340 */ - { MICRODEV_IRQ_PCI_INTD, 1, "PCI INTD" }, /* IRQ #11 IRL=4 0x360 */ - { MICRODEV_FPGA_IRQ_MOUSE, 1, "mouse" }, /* IRQ #12 IRL=3 0x380 */ - { MICRODEV_FPGA_IRQ_IDE2, 1, "IDE #2" }, /* IRQ #13 IRL=2 0x3a0 */ - { MICRODEV_FPGA_IRQ_IDE1, 1, "IDE #1" }, /* IRQ #14 IRL=1 0x3c0 */ - { 0, 0, "unused" }, /* IRQ #15 IRL=0 0x3e0 */ -}; - -#if (MICRODEV_LINUX_IRQ_KEYBOARD != 1) -# error Inconsistancy in defining the IRQ# for Keyboard! -#endif - -#if (MICRODEV_LINUX_IRQ_ETHERNET != 3) -# error Inconsistancy in defining the IRQ# for Ethernet! -#endif - -#if (MICRODEV_LINUX_IRQ_USB_HC != 7) -# error Inconsistancy in defining the IRQ# for USB! -#endif - -#if (MICRODEV_LINUX_IRQ_MOUSE != 12) -# error Inconsistancy in defining the IRQ# for PS/2 Mouse! -#endif - -#if (MICRODEV_LINUX_IRQ_IDE2 != 13) -# error Inconsistancy in defining the IRQ# for secondary IDE! -#endif - -#if (MICRODEV_LINUX_IRQ_IDE1 != 14) -# error Inconsistancy in defining the IRQ# for primary IDE! -#endif - -static void enable_microdev_irq(unsigned int irq); -static void disable_microdev_irq(unsigned int irq); - - /* shutdown is same as "disable" */ -#define shutdown_microdev_irq disable_microdev_irq - -static void mask_and_ack_microdev(unsigned int); -static void end_microdev_irq(unsigned int irq); - -static unsigned int startup_microdev_irq(unsigned int irq) -{ - enable_microdev_irq(irq); - return 0; /* never anything pending */ -} - -static struct hw_interrupt_type microdev_irq_type = { - .typename = "MicroDev-IRQ", - .startup = startup_microdev_irq, - .shutdown = shutdown_microdev_irq, - .enable = enable_microdev_irq, - .disable = disable_microdev_irq, - .ack = mask_and_ack_microdev, - .end = end_microdev_irq -}; - -static void disable_microdev_irq(unsigned int irq) -{ - unsigned int fpgaIrq; - - if (irq >= NUM_EXTERNAL_IRQS) - return; - if (!fpgaIrqTable[irq].mapped) - return; - - fpgaIrq = fpgaIrqTable[irq].fpgaIrq; - - /* disable interrupts on the FPGA INTC register */ - ctrl_outl(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTDSB_REG); -} - -static void enable_microdev_irq(unsigned int irq) -{ - unsigned long priorityReg, priorities, pri; - unsigned int fpgaIrq; - - if (unlikely(irq >= NUM_EXTERNAL_IRQS)) - return; - if (unlikely(!fpgaIrqTable[irq].mapped)) - return; - - pri = 15 - irq; - - fpgaIrq = fpgaIrqTable[irq].fpgaIrq; - priorityReg = MICRODEV_FPGA_INTPRI_REG(fpgaIrq); - - /* set priority for the interrupt */ - priorities = ctrl_inl(priorityReg); - priorities &= ~MICRODEV_FPGA_INTPRI_MASK(fpgaIrq); - priorities |= MICRODEV_FPGA_INTPRI_LEVEL(fpgaIrq, pri); - ctrl_outl(priorities, priorityReg); - - /* enable interrupts on the FPGA INTC register */ - ctrl_outl(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTENB_REG); -} - - /* This functions sets the desired irq handler to be a MicroDev type */ -static void __init make_microdev_irq(unsigned int irq) -{ - disable_irq_nosync(irq); - irq_desc[irq].chip = µdev_irq_type; - disable_microdev_irq(irq); -} - -static void mask_and_ack_microdev(unsigned int irq) -{ - disable_microdev_irq(irq); -} - -static void end_microdev_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_microdev_irq(irq); -} - -extern void __init init_microdev_irq(void) -{ - int i; - - /* disable interrupts on the FPGA INTC register */ - ctrl_outl(~0ul, MICRODEV_FPGA_INTDSB_REG); - - for (i = 0; i < NUM_EXTERNAL_IRQS; i++) - make_microdev_irq(i); -} - -extern void microdev_print_fpga_intc_status(void) -{ - volatile unsigned int * const intenb = (unsigned int*)MICRODEV_FPGA_INTENB_REG; - volatile unsigned int * const intdsb = (unsigned int*)MICRODEV_FPGA_INTDSB_REG; - volatile unsigned int * const intpria = (unsigned int*)MICRODEV_FPGA_INTPRI_REG(0); - volatile unsigned int * const intprib = (unsigned int*)MICRODEV_FPGA_INTPRI_REG(8); - volatile unsigned int * const intpric = (unsigned int*)MICRODEV_FPGA_INTPRI_REG(16); - volatile unsigned int * const intprid = (unsigned int*)MICRODEV_FPGA_INTPRI_REG(24); - volatile unsigned int * const intsrc = (unsigned int*)MICRODEV_FPGA_INTSRC_REG; - volatile unsigned int * const intreq = (unsigned int*)MICRODEV_FPGA_INTREQ_REG; - - printk("-------------------------- microdev_print_fpga_intc_status() ------------------\n"); - printk("FPGA_INTENB = 0x%08x\n", *intenb); - printk("FPGA_INTDSB = 0x%08x\n", *intdsb); - printk("FPGA_INTSRC = 0x%08x\n", *intsrc); - printk("FPGA_INTREQ = 0x%08x\n", *intreq); - printk("FPGA_INTPRI[3..0] = %08x:%08x:%08x:%08x\n", *intprid, *intpric, *intprib, *intpria); - printk("-------------------------------------------------------------------------------\n"); -} - - |