OpenE2K/qemu-e2k
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9b945a9ee3
qemu-e2k/hw/timer
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Cédric Le Goater 9b945a9ee3 aspeed/timer: use the APB frequency from the SCU 
The timer controller can be driven by either an external 1MHz clock or
by the APB clock. Today, the model makes the assumption that the APB
frequency is always set to 24MHz but this is incorrect.

The AST2400 SoC on the palmetto machines uses a 48MHz input clock
source and the APB can be set to 48MHz. The consequence is a general
system slowdown. The QEMU machines using the AST2500 SoC do not seem
impacted today because the APB frequency is still set to 24MHz.

We fix the timer frequency for all SoCs by linking the Timer model to
the SCU model. The APB frequency driving the timers is now the one
configured for the SoC.

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: 20180622075700.5923-4-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-26 17:50:42 +01:00
..
a9gtimer.c maint: Fix macros with broken 'do/while(0); ' usage 2018-01-16 14:54:52 +01:00
allwinner-a10-pit.c hw/ptimer: Introduce timer policy feature 2016-09-22 18:13:06 +01:00
altera_timer.c altera_timer: fix incorrect memset 2017-06-04 18:42:55 +03:00
arm_mptimer.c arm_mptimer: Convert to use ptimer 2016-10-24 16:26:53 +01:00
arm_timer.c hw/ptimer: Introduce timer policy feature 2016-09-22 18:13:06 +01:00
armv7m_systick.c armv7m: Split systick out from NVIC 2017-02-28 16:18:49 +00:00
aspeed_timer.c aspeed/timer: use the APB frequency from the SCU 2018-06-26 17:50:42 +01:00
cadence_ttc.c maint: Fix macros with broken 'do/while(0); ' usage 2018-01-16 14:54:52 +01:00
cmsdk-apb-timer.c hw/char/cmsdk-apb-timer: Implement CMSDK APB timer device 2017-07-17 13:36:08 +01:00
digic-timer.c hw/digic: Add trailing '\n' to qemu_log() calls 2018-06-08 13:15:33 +01:00
ds1338.c i2c: Allow I2C devices to NAK start events 2017-01-09 11:40:20 +00:00
etraxfs_timer.c shutdown: Add source information to SHUTDOWN and RESET 2017-05-23 13:28:17 +02:00
exynos4210_mct.c hw/timer/exynos4210_mct: Remove unused defines 2017-06-13 14:56:57 +01:00
exynos4210_pwm.c hw/arm/exynos: Convert fprintf to qemu_log_mask/error_report 2017-04-20 17:39:17 +01:00
exynos4210_rtc.c hw/arm/exynos: Convert fprintf to qemu_log_mask/error_report 2017-04-20 17:39:17 +01:00
grlib_gptimer.c clean-up: removed duplicate #includes 2016-10-28 18:17:24 +03:00
hpet.c hpet: recover timer offset correctly 2018-01-12 13:22:02 +01:00
i8254_common.c hw/timer/i8254: rename pit_init() -> i8254_pit_init() 2017-12-18 17:07:02 +03:00
i8254.c qdev: use device_class_set_parent_realize/unrealize/reset() 2018-02-05 13:54:38 +01:00
imx_epit.c imx: Use 'const char', not 'char const' 2016-09-22 18:13:09 +01:00
imx_gpt.c i.MX: Add i.MX7 GPT variant 2018-02-09 10:40:30 +00:00
lm32_timer.c hw/ptimer: Introduce timer policy feature 2016-09-22 18:13:06 +01:00
m48t59-internal.h hw/timer/mt48t59: Fix bit-rotten NVRAM_PRINTF format strings 2018-05-20 08:50:16 +03:00
m48t59-isa.c Split ISA and sysbus versions of m48t59 device 2017-02-06 12:33:21 +11:00
m48t59.c hw/timer/mt48t59: Fix bit-rotten NVRAM_PRINTF format strings 2018-05-20 08:50:16 +03:00
Makefile.objs xlnx-zynqmp-rtc: Initial commit 2018-03-02 10:45:34 +00:00
mc146818rtc.c qapi: Empty out qapi-schema.json 2018-03-02 13:45:50 -06:00
milkymist-sysctl.c shutdown: Add source information to SHUTDOWN and RESET 2017-05-23 13:28:17 +02:00
mips_gictimer.c hw/mips_gictimer: provide API for retrieving frequency 2017-02-21 22:24:58 +00:00
mss-timer.c maint: Fix macros with broken 'do/while(0); ' usage 2018-01-16 14:54:52 +01:00
omap_gptimer.c Replace all occurances of __FUNCTION__ with __func__ 2018-01-22 09:46:18 +01:00
omap_synctimer.c hw/timer/omap_synctimer.c: Don't use old_mmio 2017-09-21 16:34:27 +01:00
pl031.c migration: pre_save return int 2017-09-27 11:35:59 +01:00
puv3_ost.c hw/ptimer: Introduce timer policy feature 2016-09-22 18:13:06 +01:00
pxa2xx_timer.c hw/timer/pxa2xx_timer: replace hw_error() -> qemu_log_mask() 2018-01-11 13:25:38 +00:00
sh_timer.c hw: Do not include "exec/address-spaces.h" if it is not necessary 2018-06-01 14:15:10 +02:00
slavio_timer.c sun4m: remove include/hw/sparc/sun4m.h and all references to it 2018-01-09 21:48:20 +00:00
stm32f2xx_timer.c maint: Fix macros with broken 'do/while(0); ' usage 2018-01-16 14:54:52 +01:00
sun4v-rtc.c target-sparc: move common cpu initialisation routines to sparc64.c 2017-01-18 22:03:44 +01:00
trace-events xlnx-zynqmp-rtc: Add basic time support 2018-03-02 10:45:34 +00:00
twl92230.c hw/i2c: Use DeviceClass::realize instead of I2CSlaveClass::init 2018-06-01 15:14:31 +02:00
xilinx_timer.c hw/ptimer: Introduce timer policy feature 2016-09-22 18:13:06 +01:00
xlnx-zynqmp-rtc.c xlnx-zynqmp-rtc: Add basic time support 2018-03-02 10:45:34 +00:00