diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/Kconfig | 4 | ||||
| -rw-r--r-- | arch/riscv/lib/sifive_clint.c | 21 |
2 files changed, 24 insertions, 1 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index f6ed05906a2..9fcdd8c451c 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -188,6 +188,8 @@ config DMA_ADDR_T_64BIT config SIFIVE_CLINT bool depends on RISCV_MMODE + select REGMAP + select SYSCON help The SiFive CLINT block holds memory-mapped control and status registers associated with software and timer interrupts. @@ -195,6 +197,8 @@ config SIFIVE_CLINT config SPL_SIFIVE_CLINT bool depends on SPL_RISCV_MMODE + select SPL_REGMAP + select SPL_SYSCON help The SiFive CLINT block holds memory-mapped control and status registers associated with software and timer interrupts. diff --git a/arch/riscv/lib/sifive_clint.c b/arch/riscv/lib/sifive_clint.c index ab22395c552..f2421683812 100644 --- a/arch/riscv/lib/sifive_clint.c +++ b/arch/riscv/lib/sifive_clint.c @@ -10,9 +10,12 @@ #include <common.h> #include <dm.h> +#include <regmap.h> +#include <syscon.h> #include <asm/global_data.h> #include <asm/io.h> #include <asm/smp.h> +#include <asm/syscon.h> #include <linux/err.h> /* MSIP registers */ @@ -30,7 +33,11 @@ int riscv_init_ipi(void) if (ret) return ret; - gd->arch.clint = dev_read_addr_ptr(dev); + if (dev_get_driver_data(dev) != 0) + gd->arch.clint = dev_read_addr_ptr(dev); + else + gd->arch.clint = syscon_get_first_range(RISCV_SYSCON_CLINT); + if (!gd->arch.clint) return -EINVAL; @@ -57,3 +64,15 @@ int riscv_get_ipi(int hart, int *pending) return 0; } + +static const struct udevice_id riscv_aclint_swi_ids[] = { + { .compatible = "riscv,aclint-mswi", .data = RISCV_SYSCON_CLINT }, + { } +}; + +U_BOOT_DRIVER(riscv_aclint_swi) = { + .name = "riscv_aclint_swi", + .id = UCLASS_SYSCON, + .of_match = riscv_aclint_swi_ids, + .flags = DM_FLAG_PRE_RELOC, +}; |