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path: root/drivers/irqchip/irq-renesas-h8s.c
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Diffstat (limited to 'drivers/irqchip/irq-renesas-h8s.c')
-rw-r--r--drivers/irqchip/irq-renesas-h8s.c102
1 files changed, 0 insertions, 102 deletions
diff --git a/drivers/irqchip/irq-renesas-h8s.c b/drivers/irqchip/irq-renesas-h8s.c
deleted file mode 100644
index 4e2461bae944..000000000000
--- a/drivers/irqchip/irq-renesas-h8s.c
+++ /dev/null
@@ -1,102 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * H8S interrupt controller driver
- *
- * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#include <linux/irq.h>
-#include <linux/irqchip.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <asm/io.h>
-
-static void *intc_baseaddr;
-#define IPRA (intc_baseaddr)
-
-static const unsigned char ipr_table[] = {
- 0x03, 0x02, 0x01, 0x00, 0x13, 0x12, 0x11, 0x10, /* 16 - 23 */
- 0x23, 0x22, 0x21, 0x20, 0x33, 0x32, 0x31, 0x30, /* 24 - 31 */
- 0x43, 0x42, 0x41, 0x40, 0x53, 0x53, 0x52, 0x52, /* 32 - 39 */
- 0x51, 0x51, 0x51, 0x51, 0x51, 0x51, 0x51, 0x51, /* 40 - 47 */
- 0x50, 0x50, 0x50, 0x50, 0x63, 0x63, 0x63, 0x63, /* 48 - 55 */
- 0x62, 0x62, 0x62, 0x62, 0x62, 0x62, 0x62, 0x62, /* 56 - 63 */
- 0x61, 0x61, 0x61, 0x61, 0x60, 0x60, 0x60, 0x60, /* 64 - 71 */
- 0x73, 0x73, 0x73, 0x73, 0x72, 0x72, 0x72, 0x72, /* 72 - 79 */
- 0x71, 0x71, 0x71, 0x71, 0x70, 0x83, 0x82, 0x81, /* 80 - 87 */
- 0x80, 0x80, 0x80, 0x80, 0x93, 0x93, 0x93, 0x93, /* 88 - 95 */
- 0x92, 0x92, 0x92, 0x92, 0x91, 0x91, 0x91, 0x91, /* 96 - 103 */
- 0x90, 0x90, 0x90, 0x90, 0xa3, 0xa3, 0xa3, 0xa3, /* 104 - 111 */
- 0xa2, 0xa2, 0xa2, 0xa2, 0xa1, 0xa1, 0xa1, 0xa1, /* 112 - 119 */
- 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, /* 120 - 127 */
-};
-
-static void h8s_disable_irq(struct irq_data *data)
-{
- int pos;
- void __iomem *addr;
- unsigned short pri;
- int irq = data->irq;
-
- addr = IPRA + ((ipr_table[irq - 16] & 0xf0) >> 3);
- pos = (ipr_table[irq - 16] & 0x0f) * 4;
- pri = ~(0x000f << pos);
- pri &= readw(addr);
- writew(pri, addr);
-}
-
-static void h8s_enable_irq(struct irq_data *data)
-{
- int pos;
- void __iomem *addr;
- unsigned short pri;
- int irq = data->irq;
-
- addr = IPRA + ((ipr_table[irq - 16] & 0xf0) >> 3);
- pos = (ipr_table[irq - 16] & 0x0f) * 4;
- pri = ~(0x000f << pos);
- pri &= readw(addr);
- pri |= 1 << pos;
- writew(pri, addr);
-}
-
-struct irq_chip h8s_irq_chip = {
- .name = "H8S-INTC",
- .irq_enable = h8s_enable_irq,
- .irq_disable = h8s_disable_irq,
-};
-
-static __init int irq_map(struct irq_domain *h, unsigned int virq,
- irq_hw_number_t hw_irq_num)
-{
- irq_set_chip_and_handler(virq, &h8s_irq_chip, handle_simple_irq);
-
- return 0;
-}
-
-static const struct irq_domain_ops irq_ops = {
- .map = irq_map,
- .xlate = irq_domain_xlate_onecell,
-};
-
-static int __init h8s_intc_of_init(struct device_node *intc,
- struct device_node *parent)
-{
- struct irq_domain *domain;
- int n;
-
- intc_baseaddr = of_iomap(intc, 0);
- BUG_ON(!intc_baseaddr);
-
- /* All interrupt priority is 0 (disable) */
- /* IPRA to IPRK */
- for (n = 0; n <= 'k' - 'a'; n++)
- writew(0x0000, IPRA + (n * 2));
-
- domain = irq_domain_add_linear(intc, NR_IRQS, &irq_ops, NULL);
- BUG_ON(!domain);
- irq_set_default_host(domain);
- return 0;
-}
-
-IRQCHIP_DECLARE(h8s_intc, "renesas,h8s-intc", h8s_intc_of_init);