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| author | Anup Patel <apatel@ventanamicro.com> | 2021-04-21 12:57:29 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2022-02-15 18:07:05 +0300 |
| commit | 811da5c54180aafde6cb7740b1ccaf92d1017f24 (patch) | |
| tree | 4cb13c91cc621fcfce4bc2c616360e3249021e67 /platform | |
| parent | 9f73669959dd8ec2f1261b639f9540799dc976a1 (diff) | |
| download | opensbi-811da5c54180aafde6cb7740b1ccaf92d1017f24.tar.xz | |
lib: utils/irqchip: Add FDT based driver for IMSIC
We add simple FDT irqchip driver for IMSIC so that generic platform
(and other FDT based platforms) can utilize common IMIC library.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Diffstat (limited to 'platform')
| -rw-r--r-- | platform/generic/platform.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/platform/generic/platform.c b/platform/generic/platform.c index bc6e761..8a4fb70 100644 --- a/platform/generic/platform.c +++ b/platform/generic/platform.c @@ -18,6 +18,7 @@ #include <sbi_utils/fdt/fdt_helper.h> #include <sbi_utils/fdt/fdt_pmu.h> #include <sbi_utils/irqchip/fdt_irqchip.h> +#include <sbi_utils/irqchip/imsic.h> #include <sbi_utils/serial/fdt_serial.h> #include <sbi_utils/timer/fdt_timer.h> #include <sbi_utils/ipi/fdt_ipi.h> @@ -56,6 +57,7 @@ static void fw_platform_lookup_special(void *fdt, int root_offset) } extern struct sbi_platform platform; +static bool platform_has_mlevel_imsic = false; static u32 generic_hart_index2id[SBI_HARTMASK_MAX_BITS] = { 0 }; /* @@ -110,6 +112,8 @@ unsigned long fw_platform_init(unsigned long arg0, unsigned long arg1, platform.hart_count = hart_count; + platform_has_mlevel_imsic = fdt_check_imsic_mlevel(fdt); + /* Return original FDT pointer */ return arg1; @@ -118,6 +122,13 @@ fail: wfi(); } +static int generic_nascent_init(void) +{ + if (platform_has_mlevel_imsic) + imsic_local_irqchip_init(); + return 0; +} + static int generic_early_init(bool cold_boot) { if (!generic_plat || !generic_plat->early_init) @@ -210,6 +221,7 @@ static uint64_t generic_pmu_xlate_to_mhpmevent(uint32_t event_idx, } const struct sbi_platform_operations platform_ops = { + .nascent_init = generic_nascent_init, .early_init = generic_early_init, .final_init = generic_final_init, .early_exit = generic_early_exit, |