From: Bin Meng <bmeng.cn@gmail.com>
To: "Jean-Christophe Dubois" <jcd@tribudubois.net>,
"Peter Maydell" <peter.maydell@linaro.org>,
"Alex Bennée" <alex.bennee@linaro.org>,
qemu-arm@nongnu.org, qemu-devel@nongnu.org
Cc: Bin Meng <bin.meng@windriver.com>
Subject: [PATCH v2 1/4] hw/misc: imx6_ccm: Update PMU_MISC0 reset value
Date: Wed, 23 Dec 2020 14:26:04 +0800 [thread overview]
Message-ID: <1608704767-9317-2-git-send-email-bmeng.cn@gmail.com> (raw)
In-Reply-To: <1608704767-9317-1-git-send-email-bmeng.cn@gmail.com>
From: Bin Meng <bin.meng@windriver.com>
U-Boot expects PMU_MISC0 register bit 7 is set (see init_bandgap()
in arch/arm/mach-imx/mx6/soc.c) during boot. This bit indicates the
bandgap has stabilized.
With this change, the latest upstream U-Boot (v2021.01-rc3) for imx6
sabrelite board (mx6qsabrelite_defconfig), with a slight change made
by switching CONFIG_OF_SEPARATE to CONFIG_OF_EMBED, boots to U-Boot
shell on QEMU with the following command:
$ qemu-system-arm -M sabrelite -smp 4 -m 1G -kernel u-boot \
-display none -serial null -serial stdio
Boot log below:
U-Boot 2021.01-rc3 (Dec 12 2020 - 17:40:02 +0800)
CPU: Freescale i.MX?? rev1.0 at 792 MHz
Reset cause: POR
Model: Freescale i.MX6 Quad SABRE Lite Board
Board: SABRE Lite
I2C: ready
DRAM: 1 GiB
force_idle_bus: sda=0 scl=0 sda.gp=0x5c scl.gp=0x55
force_idle_bus: failed to clear bus, sda=0 scl=0
force_idle_bus: sda=0 scl=0 sda.gp=0x6d scl.gp=0x6c
force_idle_bus: failed to clear bus, sda=0 scl=0
force_idle_bus: sda=0 scl=0 sda.gp=0xcb scl.gp=0x5
force_idle_bus: failed to clear bus, sda=0 scl=0
MMC: FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... *** Warning - No block device, using default environment
In: serial
Out: serial
Err: serial
Net: Board Net Initialization Failed
No ethernet found.
starting USB...
Bus usb@2184000: usb dr_mode not found
USB EHCI 1.00
Bus usb@2184200: USB EHCI 1.00
scanning bus usb@2184000 for devices... 1 USB Device(s) found
scanning bus usb@2184200 for devices... 1 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
scanning usb for ethernet devices... 0 Ethernet Device(s) found
Hit any key to stop autoboot: 0
=>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
---
(no changes since v1)
hw/misc/imx6_ccm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/misc/imx6_ccm.c b/hw/misc/imx6_ccm.c
index cb74042..7e031b6 100644
--- a/hw/misc/imx6_ccm.c
+++ b/hw/misc/imx6_ccm.c
@@ -450,7 +450,7 @@ static void imx6_ccm_reset(DeviceState *dev)
s->analog[PMU_REG_3P0] = 0x00000F74;
s->analog[PMU_REG_2P5] = 0x00005071;
s->analog[PMU_REG_CORE] = 0x00402010;
- s->analog[PMU_MISC0] = 0x04000000;
+ s->analog[PMU_MISC0] = 0x04000080;
s->analog[PMU_MISC1] = 0x00000000;
s->analog[PMU_MISC2] = 0x00272727;
--
2.7.4
next prev parent reply other threads:[~2020-12-23 6:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-23 6:26 [PATCH v2 0/4] hw/arm: sabrelite: Improve emulation fidelity to allow booting upstream U-Boot Bin Meng
2020-12-23 6:26 ` Bin Meng [this message]
2021-01-05 3:51 ` [PATCH v2 1/4] hw/misc: imx6_ccm: Update PMU_MISC0 reset value Bin Meng
2021-01-05 9:23 ` Alex Bennée
2021-01-05 9:27 ` Bin Meng
2021-01-05 9:23 ` Alex Bennée
2020-12-23 6:26 ` [PATCH v2 2/4] hw/msic: imx6_ccm: Correct register value for silicon type Bin Meng
2021-01-05 9:22 ` Alex Bennée
2020-12-23 6:26 ` [PATCH v2 3/4] hw/arm: sabrelite: Connect the Ethernet PHY at address 6 Bin Meng
2020-12-23 6:26 ` [PATCH v2 4/4] docs/system: arm: Add sabrelite board description Bin Meng
2021-01-05 9:21 ` Alex Bennée
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=1608704767-9317-2-git-send-email-bmeng.cn@gmail.com \
--to=bmeng.cn@gmail.com \
--cc=alex.bennee@linaro.org \
--cc=bin.meng@windriver.com \
--cc=jcd@tribudubois.net \
--cc=peter.maydell@linaro.org \
--cc=qemu-arm@nongnu.org \
--cc=qemu-devel@nongnu.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).