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* misc: aspeed_scu: Update AST2600 silicon id registerJoel Stanley2020-09-181-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | Aspeed have released an updated datasheet (v7) containing the silicon id for the AST2600 A2. It looks like this: SCU004 SCU014 AST2600-A0 0x05000303 0x05000303 AST2600-A1 0x05010303 0x05010303 AST2600-A2 0x05010303 0x05020303 AST2620-A1 0x05010203 0x05010203 AST2620-A2 0x05010203 0x05020203 The SCU004 (silicon id 1) value matches SCU014 for A0, but for subsequent revisions it is hard coded to the A1 value. Qemu effectively dropped support for the A0 in 7582591ae745 ("aspeed: Support AST2600A1 silicon revision") as the A0 reset table was removed, so it makes sense to only support the behaviour of A1 and onwards. Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20200916082012.776628-1-joel@jms.id.au> Signed-off-by: Cédric Le Goater <clg@kaod.org>
* aspeed/sdmc: Perform memory trainingJoel Stanley2020-09-011-1/+1
| | | | | | | | | | | | | | | | | | | | This allows qemu to run the "normal" power on reset boot path through u-boot, where the DDR is trained. An enhancement would be to have the SCU bit stick across qemu reboots, but be unset on initial boot. Proper modelling would be to discard all writes to the phy setting regs at offset 0x100 - 0x400 and to model the phy status regs at offset 0x400. The status regs model would only need to account for offets 0x00, 0x50, 0x68 and 0x7c. Signed-off-by: Joel Stanley <joel@jms.id.au> [ clg: checkpatch fixes ] Message-Id: <20200819100956.2216690-17-clg@kaod.org> Signed-off-by: Cédric Le Goater <clg@kaod.org>
* aspeed/scu: Fix valid access size on AST2400Cédric Le Goater2020-09-011-3/+4
| | | | | | | | | | | | | | | | | The read access size of the SCU registers can be 1/2/4 bytes and write is 4 bytes and all Aspeed models would need a .valid.accepts() handler. For the moment, set the min access size to 1 byte to cover both read and write operations on the AST2400 but keep the min access size of the other SoCs to 4 bytes as this is an unusual access size. This fixes support for some old firmware doing 2 bytes reads on the AST2400 SoC. Reported-by: Erik Smit <erik.lucas.smit@gmail.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Message-Id: <20200819100956.2216690-5-clg@kaod.org> Signed-off-by: Cédric Le Goater <clg@kaod.org>
* aspeed: Support AST2600A1 silicon revisionJoel Stanley2020-05-111-6/+5Star
| | | | | | | | | | | | | | There are minimal differences from Qemu's point of view between the A0 and A1 silicon revisions. As the A1 exercises different code paths in u-boot it is desirable to emulate that instead. Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-id: 20200504093703.261135-1-joel@jms.id.au Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* aspeed/scu: Implement chip ID registerJoel Stanley2020-02-211-0/+13
| | | | | | | | | | | This returns a fixed but non-zero value for the chip id. Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200121013302.43839-3-joel@jms.id.au Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* aspeed/scu: Create separate write callbacksJoel Stanley2020-02-211-23/+57
| | | | | | | | | | | | | This splits the common write callback into separate ast2400 and ast2500 implementations. This makes it clearer when implementing differing behaviour. Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200121013302.43839-2-joel@jms.id.au Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* qdev: set properties with device_class_set_props()Marc-André Lureau2020-01-241-1/+1
| | | | | | | | | | | | | | | | | | | | | The following patch will need to handle properties registration during class_init time. Let's use a device_class_set_props() setter. spatch --macro-file scripts/cocci-macro-file.h --sp-file ./scripts/coccinelle/qdev-set-props.cocci --keep-comments --in-place --dir . @@ typedef DeviceClass; DeviceClass *d; expression val; @@ - d->props = val + device_class_set_props(d, val) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20200110153039.1379601-20-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* aspeed/scu: Fix W1C behaviorJoel Stanley2019-12-161-5/+14
| | | | | | | | | | | | | | | | This models the clock write one to clear registers, and fixes up some incorrect behavior in all of the write to clear registers. There was also a typo in one of the register definitions. Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 20191119141211.25716-8-clg@kaod.org [clg: checkpatch.pl fixes ] Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* aspeed/sdmc: Add AST2600 supportJoel Stanley2019-10-151-0/+2
| | | | | | | | | | | | | The AST2600 SDMC controller is slightly different from its predecessor (DRAM training). Max memory is now 2G on the AST2600. Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 20190925143248.10000-10-clg@kaod.org [clg: - improved commit log - reworked model integration into new object class ] Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* hw: aspeed_scu: Add AST2600 supportJoel Stanley2019-10-151-7/+185
| | | | | | | | | | | | | | | | The SCU controller on the AST2600 SoC has extra registers. Increase the number of regs of the model and introduce a new field in the class to customize the MemoryRegion operations depending on the SoC model. Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 20190925143248.10000-4-clg@kaod.org [clg: - improved commit log - changed vmstate version - reworked model integration into new object class - included AST2600_HPLL_PARAM value ] Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* aspeed/scu: Introduce a aspeed_scu_get_apb_freq() routineCédric Le Goater2019-09-131-16/+9Star
| | | | | | | | | | | The APB frequency can be calculated directly when needed from the HPLL_PARAM and CLK_SEL register values. This removes useless state in the model. Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 20190904070506.1052-11-clg@kaod.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* aspeed/scu: Introduce per-SoC SCU typesCédric Le Goater2019-09-131-36/+47
| | | | | | | | | and use a class AspeedSCUClass to define each SoC characteristics. Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 20190904070506.1052-10-clg@kaod.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* Include migration/vmstate.h lessMarkus Armbruster2019-08-161-0/+1
| | | | | | | | | | | | | | | | | | In my "build everything" tree, changing migration/vmstate.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). hw/hw.h supposedly includes it for convenience. Several other headers include it just to get VMStateDescription. The previous commit made that unnecessary. Include migration/vmstate.h only where it's still needed. Touching it now recompiles only some 1600 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-16-armbru@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* Include qemu/module.h where needed, drop it from qemu-common.hMarkus Armbruster2019-06-121-0/+1
| | | | | | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-4-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c; ui/cocoa.m fixed up]
* aspeed/scu: Use qemu_guest_getrandom_nofailRichard Henderson2019-05-221-8/+2Star
| | | | | | | | | | | | The random number is intended for use by the guest. As such, we should honor the -seed argument for reproducibility. Use the *_nofail routine instead of rolling our own error handling locally. Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* aspeed: Implement write-1-{set, clear} for AST2500 strappingAndrew Jeffery2018-07-161-2/+17
| | | | | | | | | | | | | The AST2500 SoC family changes the runtime behaviour of the hardware strapping register (SCU70) to write-1-set/write-1-clear, with write-1-clear implemented on the "read-only" SoC revision register (SCU7C). For the the AST2400, the hardware strapping is runtime-configured with read-modify-write semantics. Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Joel Stanley <joel@jms.id.au> Message-id: 20180709143524.17480-1-andrew@aj.id.au Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* aspeed/scu: introduce clock frequenciesCédric Le Goater2018-06-261-0/+106
| | | | | | | | | | | | | | | | | | All Aspeed SoC clocks are driven by an input source clock which can have different frequencies : 24MHz or 25MHz, and also, on the Aspeed AST2400 SoC, 48MHz. The H-PLL (CPU) clock is defined from a calculation using parameters in the H-PLL Parameter register or from a predefined set of frequencies if the setting is strapped by hardware (Aspeed AST2400 SoC). The other clocks of the SoC are then defined from the H-PLL using dividers. We introduce first the APB clock because it should be used to drive the Aspeed timer model. Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Message-id: 20180622075700.5923-2-clg@kaod.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* aspeed_scu: Implement RNG registerJoel Stanley2018-06-151-0/+20
| | | | | | | | | | | | | | | | | | The ASPEED SoCs contain a single register that returns random data when read. This models that register so that guests can use it. The random number data register has a corresponding control register, however it returns data regardless of the state of the enabled bit, so the model follows this behaviour. When the qcrypto call fails we exit as the guest uses the random number device to feed it's entropy pool, which is used for cryptographic purposes. Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Message-id: 20180613114836.9265-1-joel@jms.id.au Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* Fix ast2500 protection register emulationHugo Landau2018-02-221-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some register blocks of the ast2500 are protected by protection key registers which require the right magic value to be written to those registers to allow those registers to be mutated. Register manuals indicate that writing the correct magic value to these registers should cause subsequent reads from those values to return 1, and writing any other value should cause subsequent reads to return 0. Previously, qemu implemented these registers incorrectly: the registers were handled as simple memory, meaning that writing some value x to a protection key register would result in subsequent reads from that register returning the same value x. The protection was implemented by ensuring that the current value of that register equaled the magic value. This modifies qemu to have the correct behaviour: attempts to write to a ast2500 protection register results in a transition to 1 or 0 depending on whether the written value is the correct magic. The protection logic is updated to ensure that the value of the register is nonzero. This bug caused deadlocks with u-boot HEAD: when u-boot is done with a protectable register block, it attempts to lock it by writing the bitwise inverse of the correct magic value, and then spinning forever until the register reads as zero. Since qemu implemented writes to these registers as ordinary memory writes, writing the inverse of the magic value resulted in subsequent reads returning that value, leading to u-boot spinning forever. Signed-off-by: Hugo Landau <hlandau@devever.net> Reviewed-by: Cédric Le Goater <clg@kaod.org> Acked-by: Andrew Jeffery <andrew@aj.id.au> Message-id: 20180220132627.4163-1-hlandau@devever.net [PMM: fixed incorrect code indentation] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* hw/arm/aspeed: Unlock SCU when running kernelJoel Stanley2017-11-201-2/+3
| | | | | | | | | | | | | | | | | | | | The ASPEED hardware contains a lock register for the SCU that disables any writes to the SCU when it is locked. The machine comes up with the lock enabled, but on all known hardware u-boot will unlock it and leave it unlocked when loading the kernel. This means the kernel expects the SCU to be unlocked. When booting from an emulated ROM the normal u-boot unlock path is executed. Things don't go well when booting using the -kernel command line, as u-boot does not run first. Change behaviour so that when a kernel is passed to the machine, set the reset value of the SCU to be unlocked. Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-id: 20171114122018.12204-1-joel@jms.id.au Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* aspeed/scu: fix SCU region sizeCédric Le Goater2016-12-271-1/+1
| | | | | | | | Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Message-id: 1480434248-27138-12-git-send-email-clg@kaod.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* aspeed: add the definitions for the AST2400 A1 SoCCédric Le Goater2016-12-271-0/+2
| | | | | | | | | | | There is not much differences with the A0 revision apart from the DDR calibration. Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Message-id: 1480434248-27138-10-git-send-email-clg@kaod.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* aspeed: add a ast2500 SoC and support to the SCU and SDMC controllersCédric Le Goater2016-09-221-1/+44
| | | | | | | | | | Based on previous work done by Andrew Jeffery <andrew@aj.id.au>. Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1473438177-26079-9-git-send-email-clg@kaod.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* ast2400: externalize revision numbersCédric Le Goater2016-07-141-3/+1Star
| | | | | | | | | | | | | | AST2400_A0_SILICON_REV is defined twice. Fix this by including the definition in the header file as well as the routine to check if a silicon revision is supported. It will useful to reuse in other controllers. Let's add also AST2500_A0_SILICON_REV for future use. Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 1467994016-11678-5-git-send-email-clg@kaod.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* hw/misc: fix typo in Aspeed SCU hw-strap2 property nameCédric Le Goater2016-07-141-1/+1
| | | | | | | Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 1467994016-11678-2-git-send-email-clg@kaod.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* misc/aspeed_scu: Fix build error caused by missing headerPranith Kumar2016-06-281-0/+1
| | | | | | | | | | | | | | | | | | | Tracing configurations error out currently as follows: /home/travis/build/pranith/qemu/hw/misc/aspeed_scu.c: In function ‘aspeed_scu_read’: /home/travis/build/pranith/qemu/hw/misc/aspeed_scu.c:130:9: error: implicit declaration of function ‘qemu_log_mask’ [-Werror=implicit-function-declaration] /home/travis/build/pranith/qemu/hw/misc/aspeed_scu.c:130:9: error: nested extern declaration of ‘qemu_log_mask’ [-Werror=nested-externs] /home/travis/build/pranith/qemu/hw/misc/aspeed_scu.c:130:23: error: ‘LOG_GUEST_ERROR’ undeclared (first use in this function) /home/travis/build/pranith/qemu/hw/misc/aspeed_scu.c:130:23: note: each undeclared identifier is reported only once for each function it appears in /home/travis/build/pranith/qemu/hw/misc/aspeed_scu.c: In function ‘aspeed_scu_write’: /home/travis/build/pranith/qemu/hw/misc/aspeed_scu.c:154:23: error: ‘LOG_GUEST_ERROR’ undeclared (first use in this function) This is caused by a missing header file. Fix it. Signed-off-by: Pranith Kumar <bobby.prani@gmail.com> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Message-id: 20160627215304.821-1-bobby.prani@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* hw/misc: Add a model for the ASPEED System Control UnitAndrew Jeffery2016-06-271-0/+283
The SCU is a collection of chip-level control registers that manage the various functions supported by ASPEED SoCs. Typically the bits control interactions with clocks, external hardware or reset behaviour, and we can largly take a hands-off approach to reads and writes. Firmware makes heavy use of the state to determine how to boot, but the reset values vary from SoC to SoC (eg AST2400 vs AST2500). A qdev property is exposed so that the integrating SoC model can configure the silicon revision, which in-turn selects the appropriate reset values. Further qdev properties are exposed so the board model can configure the board-dependent hardware strapping. Almost all provided AST2400 reset values are specified by the datasheet. The notable exception is SOC_SCRATCH1, where we mark the DRAM as successfully initialised to avoid unnecessary dark corners in the SoC's u-boot support. Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Message-id: 1466744305-23163-2-git-send-email-andrew@aj.id.au Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: drop unnecessary inttypes.h include] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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