diff options
Diffstat (limited to 'lib/utils/irqchip/fdt_irqchip_plic.c')
| -rw-r--r-- | lib/utils/irqchip/fdt_irqchip_plic.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/utils/irqchip/fdt_irqchip_plic.c b/lib/utils/irqchip/fdt_irqchip_plic.c index 18d2797..8d375be 100644 --- a/lib/utils/irqchip/fdt_irqchip_plic.c +++ b/lib/utils/irqchip/fdt_irqchip_plic.c @@ -9,6 +9,7 @@ #include <libfdt.h> #include <sbi/riscv_asm.h> +#include <sbi/riscv_io.h> #include <sbi/sbi_error.h> #include <sbi/sbi_hartmask.h> #include <sbi_utils/fdt/fdt_helper.h> @@ -91,6 +92,11 @@ static int irqchip_plic_cold_init(void *fdt, int nodeoff, if (rc) return rc; + if (match->data) { + void (*plic_plat_init)(struct plic_data *) = match->data; + plic_plat_init(pd); + } + rc = plic_cold_irqchip_init(pd); if (rc) return rc; @@ -106,9 +112,18 @@ static int irqchip_plic_cold_init(void *fdt, int nodeoff, return irqchip_plic_update_hartid_table(fdt, nodeoff, pd); } +#define THEAD_PLIC_CTRL_REG 0x1ffffc + +static void thead_plic_plat_init(struct plic_data *pd) +{ + writel_relaxed(BIT(0), (void *)pd->addr + THEAD_PLIC_CTRL_REG); +} + static const struct fdt_match irqchip_plic_match[] = { { .compatible = "riscv,plic0" }, { .compatible = "sifive,plic-1.0.0" }, + { .compatible = "thead,c900-plic", + .data = thead_plic_plat_init }, { }, }; |