diff options
Diffstat (limited to 'arch/riscv/lib/sifive_clint.c')
| -rw-r--r-- | arch/riscv/lib/sifive_clint.c | 41 |
1 files changed, 2 insertions, 39 deletions
diff --git a/arch/riscv/lib/sifive_clint.c b/arch/riscv/lib/sifive_clint.c index a5572cb825..c8079dc510 100644 --- a/arch/riscv/lib/sifive_clint.c +++ b/arch/riscv/lib/sifive_clint.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0+ /* + * Copyright (C) 2020, Sean Anderson <seanga2@gmail.com> * Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com> * * U-Boot syscon driver for SiFive's Core Local Interruptor (CLINT). @@ -8,19 +9,13 @@ */ #include <common.h> -#include <clk.h> #include <dm.h> -#include <timer.h> #include <asm/io.h> -#include <asm/syscon.h> +#include <asm/smp.h> #include <linux/err.h> /* MSIP registers */ #define MSIP_REG(base, hart) ((ulong)(base) + (hart) * 4) -/* mtime compare register */ -#define MTIMECMP_REG(base, hart) ((ulong)(base) + 0x4000 + (hart) * 8) -/* mtime register */ -#define MTIME_REG(base) ((ulong)(base) + 0xbff8) DECLARE_GLOBAL_DATA_PTR; @@ -61,35 +56,3 @@ int riscv_get_ipi(int hart, int *pending) return 0; } - -static u64 sifive_clint_get_count(struct udevice *dev) -{ - return readq((void __iomem *)MTIME_REG(dev->priv)); -} - -static const struct timer_ops sifive_clint_ops = { - .get_count = sifive_clint_get_count, -}; - -static int sifive_clint_probe(struct udevice *dev) -{ - dev->priv = dev_read_addr_ptr(dev); - if (!dev->priv) - return -EINVAL; - - return timer_timebase_fallback(dev); -} - -static const struct udevice_id sifive_clint_ids[] = { - { .compatible = "riscv,clint0" }, - { } -}; - -U_BOOT_DRIVER(sifive_clint) = { - .name = "sifive_clint", - .id = UCLASS_TIMER, - .of_match = sifive_clint_ids, - .probe = sifive_clint_probe, - .ops = &sifive_clint_ops, - .flags = DM_FLAG_PRE_RELOC, -}; |