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authorLinus Torvalds <torvalds@linux-foundation.org>2023-11-02 15:34:59 -1000
committerLinus Torvalds <torvalds@linux-foundation.org>2023-11-02 15:34:59 -1000
commit5be9911406ada8fe6187db7ce402f7ff4c21ebdf (patch)
treed38a52646604280746a3801a7f78ab8d23e63603 /arch/sh/boards/mach-microdev/irq.c
parentc9cacf7db3e4802fd38cf7a7cbee4db2528bd256 (diff)
parent63f1ee206170ad2363aa25fd99bd5ae529c690ae (diff)
Merge tag 'sh-for-v6.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux
Pull sh updates from John Paul Adrian Glaubitz: "While the previously announced patch series for converting arch/sh to device trees is not yet ready for inclusion to mainline and therefore didn't make it for this pull request, there are still a small number changes for v6.7 which include one platform (board plus CPU and driver code) removal plus two fixes. The removal sent in by Arnd Bergmann concerns the microdev board which was an early SuperH prototype board that was never used in production. With the board removed, we were able to drop the now unused code for the SH4-202 CPU and well as the driver code for the superhyway bus and a custom implementation for ioport_map() and ioport_unmap() which will allow us to simplify ioport handling in the future. Another patch set by Geert Uytterhoeven revives SuperH BIOS earlyprintk support which got accidentally disabled in e76fe57447e88916 ("sh: Remove old early serial console code V2"), the second patch in the series updates the documentation. Finally, a patch by Masami Hiramatsu fixes a regression reported by the kernel test robot which uncovered that arch/sh is not implementing arch_cmpxchg_local() and therefore needs use __generic_cmpxchg_local() instead" * tag 'sh-for-v6.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux: locking/atomic: sh: Use generic_cmpxchg_local for arch_cmpxchg_local() Documentation: kernel-parameters: Add earlyprintk=bios on SH sh: bios: Revive earlyprintk support sh: machvec: Remove custom ioport_{un,}map() sh: Remove superhyway bus support sh: Remove unused SH4-202 support sh: Remove stale microdev board
Diffstat (limited to 'arch/sh/boards/mach-microdev/irq.c')
-rw-r--r--arch/sh/boards/mach-microdev/irq.c150
1 files changed, 0 insertions, 150 deletions
diff --git a/arch/sh/boards/mach-microdev/irq.c b/arch/sh/boards/mach-microdev/irq.c
deleted file mode 100644
index dc27492c83d76..0000000000000
--- a/arch/sh/boards/mach-microdev/irq.c
+++ /dev/null
@@ -1,150 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * arch/sh/boards/superh/microdev/irq.c
- *
- * Copyright (C) 2003 Sean McGoogan (Sean.McGoogan@superh.com)
- *
- * SuperH SH4-202 MicroDev board support.
- */
-
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <asm/io.h>
-#include <mach/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 disable_microdev_irq(struct irq_data *data)
-{
- unsigned int irq = data->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 */
- __raw_writel(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTDSB_REG);
-}
-
-static void enable_microdev_irq(struct irq_data *data)
-{
- unsigned int irq = data->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 = __raw_readl(priorityReg);
- priorities &= ~MICRODEV_FPGA_INTPRI_MASK(fpgaIrq);
- priorities |= MICRODEV_FPGA_INTPRI_LEVEL(fpgaIrq, pri);
- __raw_writel(priorities, priorityReg);
-
- /* enable interrupts on the FPGA INTC register */
- __raw_writel(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTENB_REG);
-}
-
-static struct irq_chip microdev_irq_type = {
- .name = "MicroDev-IRQ",
- .irq_unmask = enable_microdev_irq,
- .irq_mask = disable_microdev_irq,
-};
-
-/* This function sets the desired irq handler to be a MicroDev type */
-static void __init make_microdev_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- irq_set_chip_and_handler(irq, &microdev_irq_type, handle_level_irq);
- disable_microdev_irq(irq_get_irq_data(irq));
-}
-
-extern void __init init_microdev_irq(void)
-{
- int i;
-
- /* disable interrupts on the FPGA INTC register */
- __raw_writel(~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");
-}