diff options
Diffstat (limited to 'arch/riscv/lib/andes_plic.c')
| -rw-r--r-- | arch/riscv/lib/andes_plic.c | 34 |
1 files changed, 12 insertions, 22 deletions
diff --git a/arch/riscv/lib/andes_plic.c b/arch/riscv/lib/andes_plic.c index 20529ab..5cf29df 100644 --- a/arch/riscv/lib/andes_plic.c +++ b/arch/riscv/lib/andes_plic.c @@ -30,20 +30,6 @@ #define SEND_IPI_TO_HART(hart) (0x80 >> (hart)) DECLARE_GLOBAL_DATA_PTR; -static int init_plic(void); - -#define PLIC_BASE_GET(void) \ - do { \ - long *ret; \ - \ - if (!gd->arch.plic) { \ - ret = syscon_get_first_range(RISCV_SYSCON_PLIC); \ - if (IS_ERR(ret)) \ - return PTR_ERR(ret); \ - gd->arch.plic = ret; \ - init_plic(); \ - } \ - } while (0) static int enable_ipi(int hart) { @@ -93,13 +79,21 @@ static int init_plic(void) return -ENODEV; } -int riscv_send_ipi(int hart) +int riscv_init_ipi(void) { - unsigned int ipi; + long *ret = syscon_get_first_range(RISCV_SYSCON_PLIC); + + if (IS_ERR(ret)) + return PTR_ERR(ret); + gd->arch.plic = ret; + + return init_plic(); +} - PLIC_BASE_GET(); +int riscv_send_ipi(int hart) +{ + unsigned int ipi = (SEND_IPI_TO_HART(hart) << (8 * gd->arch.boot_hart)); - ipi = (SEND_IPI_TO_HART(hart) << (8 * gd->arch.boot_hart)); writel(ipi, (void __iomem *)PENDING_REG(gd->arch.plic, gd->arch.boot_hart)); @@ -110,8 +104,6 @@ int riscv_clear_ipi(int hart) { u32 source_id; - PLIC_BASE_GET(); - source_id = readl((void __iomem *)CLAIM_REG(gd->arch.plic, hart)); writel(source_id, (void __iomem *)CLAIM_REG(gd->arch.plic, hart)); @@ -120,8 +112,6 @@ int riscv_clear_ipi(int hart) int riscv_get_ipi(int hart, int *pending) { - PLIC_BASE_GET(); - *pending = readl((void __iomem *)PENDING_REG(gd->arch.plic, gd->arch.boot_hart)); *pending = !!(*pending & SEND_IPI_TO_HART(hart)); |