mirror of
https://github.com/AsahiLinux/m1n1
synced 2024-12-22 19:43:05 +00:00
38 lines
794 B
C
38 lines
794 B
C
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/* SPDX-License-Identifier: MIT */
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#include "aic.h"
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#include "adt.h"
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#include "aic_regs.h"
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#include "utils.h"
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u64 aic_base;
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#define MASK_REG(x) (4 * ((x) >> 5))
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#define MASK_BIT(x) BIT((x)&GENMASK(4, 0))
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void aic_init(void)
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{
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int path[8];
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int node = adt_path_offset_trace(adt, "/arm-io/aic", path);
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if (node < 0) {
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printf("AIC node not found!\n");
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return;
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}
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if (adt_get_reg(adt, path, "reg", 0, &aic_base, NULL)) {
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printf("Failed to get AIC reg property!\n");
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return;
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}
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printf("AIC registers @ 0x%lx\n", aic_base);
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}
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void aic_set_sw(int irq, bool active)
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{
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if (active)
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write32(aic_base + AIC_SW_SET + MASK_REG(irq), MASK_BIT(irq));
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else
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write32(aic_base + AIC_SW_CLR + MASK_REG(irq), MASK_BIT(irq));
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}
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