OpenE2K/qemu-e2k
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qemu-e2k/include/hw/misc
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Mark Cave-Ayland 366d27796c mac_via: work around underflow in TimeDBRA timing loop in SETUPTIMEK 
The MacOS toolbox ROM calculates the number of branches that can be executed
per millisecond as part of its timer calibration. Since modern hosts are
considerably quicker than original hardware, the negative counter reaches zero
before the calibration completes leading to division by zero later in
CALCULATESLOD.

Instead of trying to fudge the timing loop (which won't work for TimeDBRA/TimeSCCDB
anyhow), use the pattern of access to the VIA1 registers to detect when SETUPTIMEK
has finished executing and write some well-known good timer values to TimeDBRA
and TimeSCCDB taken from real hardware with a suitable scaling factor.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-ID: <20231004083806.757242-15-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-10-06 10:33:43 +02:00
..
macio include/: spelling fixes 2023-09-08 13:08:52 +03:00
a9scu.h
allwinner-a10-ccm.h hw/misc: Allwinner-A10 Clock Controller Module Emulation 2023-01-12 16:50:19 +00:00
allwinner-a10-dramc.h hw/misc: Allwinner A10 DRAM Controller Emulation 2023-01-12 16:50:19 +00:00
allwinner-cpucfg.h
allwinner-h3-ccu.h
allwinner-h3-dramc.h
allwinner-h3-sysctrl.h
allwinner-r40-ccu.h hw/arm/allwinner-r40: add Clock Control Unit 2023-06-06 10:19:31 +01:00
allwinner-r40-dramc.h hw/arm/allwinner-r40: add SDRAM controller device 2023-06-06 10:19:32 +01:00
allwinner-sid.h
allwinner-sramc.h hw: arm: allwinner-sramc: Add SRAM Controller support for R40 2023-06-06 10:19:33 +01:00
arm11scu.h
arm_integrator_debug.h
armsse-cpu-pwrctrl.h
armsse-cpuid.h
armsse-mhu.h
armv7m_ras.h
aspeed_hace.h Clean up decorations and whitespace around header guards 2022-05-11 16:50:32 +02:00
aspeed_i3c.h
aspeed_lpc.h Don't include headers already included by qemu/osdep.h 2023-02-08 07:28:05 +01:00
aspeed_peci.h hw/misc/aspeed: Add PECI controller 2022-06-30 09:21:14 +02:00
aspeed_sbc.h aspeed: sbc: Allow per-machine settings 2022-07-14 16:24:38 +02:00
aspeed_scu.h bulk: Do not declare function prototypes using 'extern' keyword 2023-08-31 19:47:43 +02:00
aspeed_sdmc.h
aspeed_xdma.h
auxbus.h hw/i2c: spelling fixes 2023-08-31 19:47:43 +02:00
avr_power.h
bcm2835_cprman_internals.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
bcm2835_cprman.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
bcm2835_mbox_defs.h
bcm2835_mbox.h
bcm2835_mphi.h
bcm2835_powermgt.h
bcm2835_property.h hw/arm/bcm2835_property: Implement "get command line" message 2023-05-02 15:47:40 +01:00
bcm2835_rng.h
bcm2835_thermal.h
cbus.h
djmemc.h q800: add djMEMC memory controller 2023-10-06 10:33:43 +02:00
empty_slot.h
grlib_ahb_apb_pnp.h
imx6_ccm.h
imx6_src.h
imx6ul_ccm.h
imx7_ccm.h
imx7_gpr.h
imx7_snvs.h
imx7_src.h Add i.MX7 SRC device implementation 2023-08-31 09:45:17 +01:00
imx25_ccm.h
imx31_ccm.h
imx_ccm.h
imx_rngc.h
iosb.h q800: add IOSB subsystem 2023-10-06 10:33:43 +02:00
iotkit-secctl.h
iotkit-sysctl.h
iotkit-sysinfo.h
ivshmem.h
lasi.h lasi: fix RTC migration 2023-04-20 11:17:35 +02:00
led.h
mac_via.h mac_via: work around underflow in TimeDBRA timing loop in SETUPTIMEK 2023-10-06 10:33:43 +02:00
mchp_pfsoc_dmc.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
mchp_pfsoc_ioscb.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
mchp_pfsoc_sysreg.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
mips_cmgcr.h hw/mips: Declare all length properties as unsigned 2023-03-08 00:37:48 +01:00
mips_cpc.h
mips_itu.h hw/mips/itu: Pass SAAR using QOM link property 2023-03-08 00:37:48 +01:00
mos6522.h input/adb: Only include header where needed 2023-02-06 11:41:39 +00:00
mps2-fpgaio.h
mps2-scc.h
msf2-sysreg.h
npcm7xx_clk.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_gcr.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_mft.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_pwm.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_rng.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
nrf51_rng.h
pca9552_regs.h
pca9552.h
pvpanic.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
raspberrypi-fw-defs.h hw/arm/raspi: Import Linux raspi definitions as 'raspberrypi-fw-defs.h' 2023-06-19 15:27:21 +01:00
sifive_e_aon.h hw/misc: sifive_e_aon: Support the watchdog timer of HiFive 1 rev b. 2023-07-10 22:29:14 +10:00
sifive_e_prci.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
sifive_test.h
sifive_u_otp.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
sifive_u_prci.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
stm32f2xx_syscfg.h
stm32f4xx_exti.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
stm32f4xx_syscfg.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
tz-mpc.h
tz-msc.h
tz-ppc.h
unimp.h
virt_ctrl.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
vmcoreinfo.h
xlnx-cfi-if.h hw/misc: Introduce the Xilinx CFI interface 2023-09-08 16:41:34 +01:00
xlnx-versal-cframe-reg.h hw/misc: Introduce a model of Xilinx Versal's CFRAME_BCAST_REG 2023-09-08 16:41:35 +01:00
xlnx-versal-cfu.h hw/misc/xlnx-versal-cfu: Introduce a model of Xilinx Versal's CFU_SFR 2023-09-08 16:41:35 +01:00
xlnx-versal-crl.h hw/misc: Add a model of the Xilinx Versal CRL 2022-04-21 11:37:03 +01:00
xlnx-versal-pmc-iou-slcr.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
xlnx-versal-xramc.h
xlnx-zynqmp-apu-ctrl.h hw/misc: Move some arm-related files from specific_ss into softmmu_ss 2022-12-15 17:37:47 +00:00
xlnx-zynqmp-crf.h hw/misc: Add a model of the Xilinx ZynqMP CRF 2022-03-18 11:31:20 +00:00