From: Sean Anderson <seanga2@gmail.com>
To: u-boot@lists.denx.de
Subject: [PATCH v2 06/11] riscv: Fix incorrect cpu frequency on RV64
Date: Wed, 15 Jan 2020 17:55:39 -0500 [thread overview]
Message-ID: <0b623be8-a24e-e200-c406-be54d84bb04a@gmail.com> (raw)
In-Reply-To: <3411d84b-5a56-ae4e-1deb-085ef1a4971d@gmail.com>
The riscv_cpu_get_info function does not always zero-out cpu_freq. This can
cause spurious higher frequencies.
Signed-off-by Sean Anderson <seanga2@gmail.com>
---
Changes for v2:
New.
drivers/cpu/riscv_cpu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/cpu/riscv_cpu.c b/drivers/cpu/riscv_cpu.c
index 28ad0aa30f..1e32bb5678 100644
--- a/drivers/cpu/riscv_cpu.c
+++ b/drivers/cpu/riscv_cpu.c
@@ -29,6 +29,8 @@ static int riscv_cpu_get_info(struct udevice *dev, struct cpu_info *info)
{
const char *mmu;
+ /* Zero out the frequency, in case sizeof(ulong) != sizeof(u32) */
+ info->cpu_freq = 0;
dev_read_u32(dev, "clock-frequency", (u32 *)&info->cpu_freq);
mmu = dev_read_string(dev, "mmu-type");
--
2.24.1
next prev parent reply other threads:[~2020-01-15 22:55 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-15 22:45 [PATCH v2 00/11] riscv: Add Sipeed Maix support Sean Anderson
2020-01-15 22:47 ` [PATCH v2 01/11] clk: Always use the supplied struct clk Sean Anderson
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA46C88BE@ATCPCS16.andestech.com>
2020-01-21 1:54 ` Rick Chen
2020-01-21 2:02 ` Sean Anderson
2020-01-21 2:23 ` Rick Chen
2020-01-21 3:18 ` Sean Anderson
2020-01-23 5:53 ` Sean Anderson
2020-01-24 14:27 ` Lukasz Majewski
2020-01-24 23:22 ` Sean Anderson
2020-01-25 20:18 ` Lukasz Majewski
2020-01-26 21:20 ` Lukasz Majewski
2020-01-26 22:07 ` Sean Anderson
2020-01-27 23:40 ` Lukasz Majewski
2020-01-28 16:11 ` Sean Anderson
2020-01-30 0:29 ` Lukasz Majewski
2020-01-30 5:47 ` Sean Anderson
2020-01-31 9:18 ` Lukasz Majewski
2020-01-15 22:49 ` [PATCH v2 02/11] clk: Check that ops of composite clock components, exist before calling Sean Anderson
2020-01-26 21:25 ` Lukasz Majewski
2020-01-15 22:50 ` [PATCH v2 03/11] riscv: Add headers for asm/global_data.h Sean Anderson
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA46C88DF@ATCPCS16.andestech.com>
2020-01-21 2:07 ` Rick Chen
2020-01-21 2:17 ` Sean Anderson
2020-01-26 22:04 ` Lukas Auer
2020-01-26 22:12 ` Sean Anderson
2020-01-26 22:23 ` Lukas Auer
2020-01-15 22:51 ` [PATCH v2 04/11] riscv: Add an option to default to RV64I Sean Anderson
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA46C88FE@ATCPCS16.andestech.com>
2020-01-21 2:16 ` Rick Chen
2020-01-15 22:53 ` [PATCH v2 05/11] riscv: Add option to disable writes to mcounteren Sean Anderson
2020-01-26 22:09 ` Lukas Auer
2020-01-26 22:24 ` Sean Anderson
2020-01-30 22:13 ` Lukas Auer
2020-01-15 22:55 ` Sean Anderson [this message]
2020-01-26 22:04 ` [PATCH v2 06/11] riscv: Fix incorrect cpu frequency on RV64 Lukas Auer
2020-01-15 23:04 ` [PATCH v2 07/11] riscv: Add initial Sipeed Maix support Sean Anderson
2020-01-26 22:17 ` Lukas Auer
2020-01-27 1:09 ` Sean Anderson
2020-01-30 22:21 ` Lukas Auer
2020-02-02 6:06 ` Sean Anderson
2020-01-15 23:16 ` [PATCH v2 00/11] riscv: Add " Sean Anderson
2020-01-15 23:18 ` [PATCH v2 08/11] riscv: Add device tree for K210 Sean Anderson
[not found] ` <752D002CFF5D0F4FA35C0100F1D73F3FA46C8947@ATCPCS16.andestech.com>
2020-01-21 2:54 ` Rick Chen
2020-01-15 23:20 ` [PATCH v2 09/11] riscv: Add K210 sysctl support Sean Anderson
2020-01-15 23:24 ` [PATCH v2 10/11] riscv: Add K210 pll support Sean Anderson
2020-01-15 23:26 ` [PATCH v2 11/11] riscv: Add K210 clock support Sean Anderson
2020-01-21 3:46 ` [PATCH v2 08/11] riscv: Add device tree for K210 Sean Anderson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=0b623be8-a24e-e200-c406-be54d84bb04a@gmail.com \
--to=seanga2@gmail.com \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.