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ARM: qemu-arm: enable RTC 

QEMU provides an emulated ARM AMBA PrimeCell PL031 RTC.

The patch sets the base address in the board include file according to the
definition in hw/arm/virt.c of the QEMU source. It defines the Kconfig
option for the existing driver, and enables the RTC driver in
qemu_arm64_defconfig and qemu_arm_defconfig as well as the date command.

We need an RTC to provide the GetTime() runtime service in the UEFI
subsystem.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Tested-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
This commit is contained in:
Heinrich Schuchardt 2018-06-29 00:34:16 +02:00 committed by Tom Rini
parent b71bb87af9
commit b19886b946
4 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
configs/qemu_arm64_defconfig
View File

@ -9,6 +9,7 @@ CONFIG_DISTRO_DEFAULTS=y
# CONFIG_DISPLAY_BOARDINFO is not set
CONFIG_CMD_PCI=y
CONFIG_CMD_USB=y
CONFIG_CMD_DATE=y
CONFIG_OF_BOARD=y
CONFIG_SCSI_AHCI=y
CONFIG_AHCI_PCI=y
@ -20,6 +21,7 @@ CONFIG_NVME=y
CONFIG_PCI=y
CONFIG_DM_PCI=y
CONFIG_PCIE_ECAM_GENERIC=y
CONFIG_RTC_PL031=y
CONFIG_SCSI=y
CONFIG_DM_SCSI=y
CONFIG_SYSRESET=y

2
configs/qemu_arm_defconfig
View File

@ -9,6 +9,7 @@ CONFIG_DISTRO_DEFAULTS=y
# CONFIG_DISPLAY_BOARDINFO is not set
CONFIG_CMD_PCI=y
CONFIG_CMD_USB=y
CONFIG_CMD_DATE=y
CONFIG_OF_BOARD=y
CONFIG_SCSI_AHCI=y
CONFIG_AHCI_PCI=y
@ -20,6 +21,7 @@ CONFIG_NVME=y
CONFIG_PCI=y
CONFIG_DM_PCI=y
CONFIG_PCIE_ECAM_GENERIC=y
CONFIG_RTC_PL031=y
CONFIG_SCSI=y
CONFIG_DM_SCSI=y
CONFIG_SYSRESET=y

7
drivers/rtc/Kconfig
View File

@ -48,6 +48,13 @@ config RTC_RX8010SJ
help
Support for Epson RX8010SJ Real Time Clock devices.
config RTC_PL031
bool "Enable ARM AMBA PL031 RTC driver"
help
The ARM PrimeCell Real Time Clock (PL031) is an optional SoC
peripheral based on the Advanced Microcontroller Bus Architecture
(AMBA). It is emulated in QEMU virtual ARM machines.
config RTC_MV
bool "Enable Marvell RTC driver"
depends on DM_RTC

3
include/configs/qemu-arm.h
View File

@ -24,6 +24,9 @@
/* For block devices, QEMU emulates an ICH9 AHCI controller over PCI */
#define CONFIG_SYS_SCSI_MAX_SCSI_ID 6
/* QEMU emulates the ARM AMBA PL031 RTC */
#define CONFIG_SYS_RTC_PL031_BASE 0x09010000
/* Environment options */
#define CONFIG_ENV_SIZE SZ_64K