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* sunxi: Machine id hack to prevent loading buggy sunxi-3.4 kernelsSiarhei Siamashka2015-02-21-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now U-Boot supports the CONFIG_OLD_SUNXI_KERNEL_COMPAT option, which makes it go out of its way in limiting the selection of PLL clock frequencies and PMIC voltages in order not to upset outdated buggy sunxi-3.4 kernel releases. And if the CONFIG_OLD_SUNXI_KERNEL_COMPAT option is not set, then booting such old kernels exhibits various failures at runtime. This is very user unfriendly, and there were already several incidents when people wasted their time being hit by these runtime failures and trying to debug them. The right solution is not to add hacks and workarounds to the mainline U-Boot, but to fix these bugs in the sunxi-3.4 kernel. And in fact, the updated sunxi-3.4 kernels already exist. Still we need to follow the 'Principle of Least Surprise' and U-Boot needs to ensure that the old buggy kernels are not getting happily booted when the CONFIG_OLD_SUNXI_KERNEL_COMPAT option is not set. And this patch addresses this particular issue. This patch makes U-Boot store the 'compatibility revision' number in the top 4 bits of the machine id and pass it to the kernel. The old buggy kernels will fail to load with a very much googlable error message on the serial console (the "r1 = 0x100010bb" part of it): "Error: unrecognized/unsupported machine ID (r1 = 0x100010bb)" This error message can be documented in the linux-sunxi wiki with proper explanations about how to resolve this situation and where to get the necessary bugfixes for the sunxi-3.4 kernel. The fixed sunxi-3.4 kernels implement a revision compatibility check and clear the top 4 bits of the machine id if everything is alright. By accepting the machine id with the bits 31:28 set to 1, the sunxi-3.4 kernel effectively certifies that it has the PLL5 clock speed and AXP209 DCDC3 voltage fixes applied. It is still possible to set the CONFIG_OLD_SUNXI_KERNEL_COMPAT option in U-Boot if the user desires to use an outdated unpatched sunxi-3.4 kernel. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Use a common CONFIG_SYS_PROMPTIan Campbell2015-01-23-1/+0
| | | | | | | | | | | The CPU info is already logged during boot e.g. CPU: Allwinner A20 (SUN7I) so the prompt is just one more thing to change for each new SoC, just makes it "sunxi#" instead. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* ARM: HYP/non-sec: Fix the ARCH Timer frequency setting for sun7iXiubo Li2014-12-11-1/+1
| | | | | | | | | Earlier commit 73a1cb27 mistakenly used CONFIG_SYS_TIMER_CLK_FREQ. It should be CONFIG_TIMER_CLK_FREQ. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> [York Sun: This is the difference between two patch versions] Reviewed-by: York Sun <yorksun@freescale.com>
* ARM: HYP/non-sec: Fix the ARCH Timer frequency setting.Xiubo Li2014-12-11-0/+1
| | | | | | | | | | | | For some SoCs, the system clock frequency may not equal to the ARCH Timer's frequency. This patch uses the CONFIG_TIMER_CLK_FREQ instead of CONFIG_SYS_CLK_FREQ, then the system clock macro and arch timer macor could be set separately and without interfering each other. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* sun7i: Drop CONFIG_ARMV7_PSCI_NR_CPUSHans de Goede2014-11-25-1/+0
| | | | | | | It is not used anywhere. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* ARM: Add arch/arm/cpu/armv7/Kconfig with non-secure and virt optionsHans de Goede2014-11-24-2/+0
| | | | | | | | | Add arch/arm/cpu/armv7/Kconfig with non-secure and virt options, this is a preparation patch for adding an env variable to choose between secure / non-secure boot on non-secure boot capable systems, specifically this prepares for adding CONFIG_ARMV7_BOOT_SEC_DEFAULT as a proper Kconfig option. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: ehci: Add proper Kconfig options to select the usb Vbus gpio-sHans de Goede2014-11-13-7/+0
| | | | | | | | | Add proper Kconfig options to select the usb Vbus gpio-s, besides moving to Kconfig being the right thing to do, an added advantage of this is that it allows for boards without Vbus gpio-s. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: Use CONFIG_MACH_SUN?I from Kconfig instead of CONFIG_SUN?IIan Campbell2014-11-05-1/+0
| | | | | | | | | | | Mostly automatic with: sed -i -e 's/CONFIG_\(SUN[45678]I\)/CONFIG_MACH_\1/g' $(git grep -l CONFIG_SUN[45678]I) followed by removing the relevant #defines from include/configs/sun?i.h by hand. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Add CONFIG_MACH_TYPE defines to sun4i, sun5i and sun7iHans de Goede2014-10-24-0/+1
| | | | | | | | | | | | | Many people are still using old linux-sunxi-3.4 kernels on sunxi devices, adding the proper MACH_TYPE defines for this allows people to switch to upstream u-boot, so that we can stop maintaining the linux-sunxi u-boot fork. These machine-ids are all properly registered at: http://www.arm.linux.org.uk/developer/machines/ Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: HYP/non-sec: configure CNTFRQ on all CPUsMarc Zyngier2014-07-31-0/+1
| | | | | | | | | | CNTFRQ needs to be properly configured on all CPUs. Otherwise, virtual machines hoping to find valuable information on secondary CPUs will be disapointed... Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: HYP/non-sec: add sun7i PSCI backendMarc Zyngier2014-07-31-0/+6
| | | | | | | | | So far, only supporting the CPU_ON method. Other functions can be added later. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sun7i: add USB EHCI settingsRoman Byshko2014-07-31-0/+12
| | | | | | | | | | | | Specific USB EHCI settings to be set for sun7i if CONFIG_USB_EHCI is enabled. Signed-off-by: Roman Byshko <rbyshko@gmail.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> [hdegoede@redhat.com: Use SUNXI_GPH macro for SUNXI_USB_VBUS#_GPIO] [hdegoede@redhat.com: Add #ifndef SUNXI_USB_VBUS#_GPIO to allow override of the default pins from boards.cfg] Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Add axp209 pmic supportHenrik Nordstrom2014-07-18-0/+1
| | | | | | | | | | | Add support for the x-powers axp209 pmic which is found on most A10, A13 and A20 boards. And enable AXP209 support for the Cubietruck and Cubieboard boards. Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: add sun7i cpu, board and start of day supportIan Campbell2014-05-25-0/+24
This patch adds generic board, start of day and basic build system support for the Allwinner A20 (sun7i) processor. This code will not been compiled until the build is hooked up in a later patch. It has been split out to keep the patches manageable. Signed-off-by: Adam Sampson <ats@offog.org> Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com> Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Emilio López <emilio@elopez.com.ar> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net> Signed-off-by: Jens Kuske <jenskuske@gmail.com> Signed-off-by: Luc Verhaegen <libv@skynet.be> Signed-off-by: Luke Leighton <lkcl@lkcl.net> Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Patrick Wood <patrickhwood@gmail.com> Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Wills Wang <wills.wang.open@gmail.com> Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Marek Vasut <marex@denx.de> Cc: Tom Cubie <Mr.hipboi@gmail.com> Reviewed-by: Tom Rini <trini@ti.com>
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