diff options
Diffstat (limited to 'drivers/irqchip/irq-renesas-h8300h.c')
-rw-r--r-- | drivers/irqchip/irq-renesas-h8300h.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/drivers/irqchip/irq-renesas-h8300h.c b/drivers/irqchip/irq-renesas-h8300h.c deleted file mode 100644 index 1054d74b7edd..000000000000 --- a/drivers/irqchip/irq-renesas-h8300h.c +++ /dev/null @@ -1,94 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * H8/300H interrupt controller driver - * - * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp> - */ - -#include <linux/init.h> -#include <linux/irq.h> -#include <linux/irqchip.h> -#include <linux/of_address.h> -#include <linux/of_irq.h> -#include <asm/io.h> - -static const char ipr_bit[] = { - 7, 6, 5, 5, - 4, 4, 4, 4, 3, 3, 3, 3, - 2, 2, 2, 2, 1, 1, 1, 1, - 0, 0, 0, 0, 15, 15, 15, 15, - 14, 14, 14, 14, 13, 13, 13, 13, - -1, -1, -1, -1, 11, 11, 11, 11, - 10, 10, 10, 10, 9, 9, 9, 9, -}; - -static void __iomem *intc_baseaddr; - -#define IPR (intc_baseaddr + 6) - -static void h8300h_disable_irq(struct irq_data *data) -{ - int bit; - int irq = data->irq - 12; - - bit = ipr_bit[irq]; - if (bit >= 0) { - if (bit < 8) - ctrl_bclr(bit & 7, IPR); - else - ctrl_bclr(bit & 7, (IPR+1)); - } -} - -static void h8300h_enable_irq(struct irq_data *data) -{ - int bit; - int irq = data->irq - 12; - - bit = ipr_bit[irq]; - if (bit >= 0) { - if (bit < 8) - ctrl_bset(bit & 7, IPR); - else - ctrl_bset(bit & 7, (IPR+1)); - } -} - -struct irq_chip h8300h_irq_chip = { - .name = "H8/300H-INTC", - .irq_enable = h8300h_enable_irq, - .irq_disable = h8300h_disable_irq, -}; - -static int irq_map(struct irq_domain *h, unsigned int virq, - irq_hw_number_t hw_irq_num) -{ - irq_set_chip_and_handler(virq, &h8300h_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 h8300h_intc_of_init(struct device_node *intc, - struct device_node *parent) -{ - struct irq_domain *domain; - - intc_baseaddr = of_iomap(intc, 0); - BUG_ON(!intc_baseaddr); - - /* All interrupt priority low */ - writeb(0x00, IPR + 0); - writeb(0x00, IPR + 1); - - domain = irq_domain_add_linear(intc, NR_IRQS, &irq_ops, NULL); - BUG_ON(!domain); - irq_set_default_host(domain); - return 0; -} - -IRQCHIP_DECLARE(h8300h_intc, "renesas,h8300h-intc", h8300h_intc_of_init); |