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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/sh/kernel/cpu/sh4a/intc-shx3.c | |
| parent | Initial commit. (diff) | |
| download | linux-upstream.tar.xz linux-upstream.zip | |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/sh/kernel/cpu/sh4a/intc-shx3.c')
| -rw-r--r-- | arch/sh/kernel/cpu/sh4a/intc-shx3.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/sh4a/intc-shx3.c b/arch/sh/kernel/cpu/sh4a/intc-shx3.c new file mode 100644 index 000000000..78c971486 --- /dev/null +++ b/arch/sh/kernel/cpu/sh4a/intc-shx3.c @@ -0,0 +1,34 @@ +/* + * Shared support for SH-X3 interrupt controllers. + * + * Copyright (C) 2009 - 2010 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/irq.h> +#include <linux/io.h> +#include <linux/init.h> + +#define INTACK 0xfe4100b8 +#define INTACKCLR 0xfe4100bc +#define INTC_USERIMASK 0xfe411000 + +#ifdef CONFIG_INTC_BALANCING +unsigned int irq_lookup(unsigned int irq) +{ + return __raw_readl(INTACK) & 1 ? irq : NO_IRQ_IGNORE; +} + +void irq_finish(unsigned int irq) +{ + __raw_writel(irq2evt(irq), INTACKCLR); +} +#endif + +static int __init shx3_irq_setup(void) +{ + return register_intc_userimask(INTC_USERIMASK); +} +arch_initcall(shx3_irq_setup); |