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| author | Kuan Lim Lee <kuanlim.lee@starfivetech.com> | 2023-12-11 10:22:10 +0800 |
|---|---|---|
| committer | Leo Yu-Chi Liang <ycliang@andestech.com> | 2023-12-18 11:08:54 +0800 |
| commit | 429fa3b32dbbc89793823607b4151a35dc9e7629 (patch) | |
| tree | 6ae990c2f89716aa53a1e7f6077703a04631878b | |
| parent | 7576ab2facae92f4062f88c4f643e2548e112437 (diff) | |
| download | u-boot-429fa3b32dbbc89793823607b4151a35dc9e7629.zip u-boot-429fa3b32dbbc89793823607b4151a35dc9e7629.tar.gz u-boot-429fa3b32dbbc89793823607b4151a35dc9e7629.tar.bz2 | |
timer: starfive: Add Starfive timer support
Add timer driver in Starfive SoC. It is an timer that outside
of CPU core and inside Starfive SoC.
Signed-off-by: Kuan Lim Lee <kuanlim.lee@starfivetech.com>
Signed-off-by: Wei Liang Lim <weiliang.lim@starfivetech.com>
Changes for v2:
- correct driver name, comment, variable
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
| -rw-r--r-- | drivers/timer/starfive-timer.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/timer/starfive-timer.c b/drivers/timer/starfive-timer.c index 816402f..6ac7d7f 100644 --- a/drivers/timer/starfive-timer.c +++ b/drivers/timer/starfive-timer.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2022 StarFive, Inc. All rights reserved. - * Author: Lee Kuan Lim <kuanlim.lee@starfivetech.com> + * Author: Kuan Lim Lee <kuanlim.lee@starfivetech.com> */ #include <common.h> @@ -48,8 +48,8 @@ static int starfive_probe(struct udevice *dev) int ret; priv->base = dev_read_addr_ptr(dev); - if (IS_ERR(priv->base)) - return PTR_ERR(priv->base); + if (!priv->base) + return -EINVAL; timer_channel = dev_read_u32_default(dev, "channel", 0); priv->base = priv->base + (0x40 * timer_channel); @@ -64,14 +64,16 @@ static int starfive_probe(struct udevice *dev) return ret; uc_priv->clock_rate = clk_get_rate(&clk); - /* Initiate timer, channel 0 */ - /* Unmask Interrupt Mask */ + /* + * Initiate timer, channel 0 + * Unmask Interrupt Mask + */ writel(0, priv->base + STF_TIMER_INT_MASK); /* Single run mode Setting */ if (dev_read_bool(dev, "single-run")) writel(1, priv->base + STF_TIMER_CTL); /* Set Reload value */ - priv->timer_size = dev_read_u32_default(dev, "timer-size", 0xffffffff); + priv->timer_size = dev_read_u32_default(dev, "timer-size", -1U); writel(priv->timer_size, priv->base + STF_TIMER_LOAD); /* Enable to start timer */ writel(1, priv->base + STF_TIMER_ENABLE); @@ -85,7 +87,7 @@ static const struct udevice_id starfive_ids[] = { }; U_BOOT_DRIVER(jh8100_starfive_timer) = { - .name = "jh8100_starfive_timer", + .name = "starfive_timer", .id = UCLASS_TIMER, .of_match = starfive_ids, .probe = starfive_probe, |