From: "Alex Bennée" <alex.bennee@linaro.org>
To: Bin Meng <bmeng.cn@gmail.com>
Cc: Bin Meng <bin.meng@windriver.com>,
Peter Maydell <peter.maydell@linaro.org>,
qemu-arm@nongnu.org, qemu-devel@nongnu.org,
Jean-Christophe Dubois <jcd@tribudubois.net>
Subject: Re: [PATCH v2 1/4] hw/misc: imx6_ccm: Update PMU_MISC0 reset value
Date: Tue, 05 Jan 2021 09:23:21 +0000 [thread overview]
Message-ID: <87o8i33ffy.fsf@linaro.org> (raw)
In-Reply-To: <1608704767-9317-2-git-send-email-bmeng.cn@gmail.com>
Bin Meng <bmeng.cn@gmail.com> writes:
> 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>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
--
Alex Bennée
next prev parent reply other threads:[~2021-01-05 9:26 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 ` [PATCH v2 1/4] hw/misc: imx6_ccm: Update PMU_MISC0 reset value Bin Meng
2021-01-05 3:51 ` Bin Meng
2021-01-05 9:23 ` Alex Bennée
2021-01-05 9:27 ` Bin Meng
2021-01-05 9:23 ` Alex Bennée [this message]
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
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