Commit graph

7 commits

Author SHA1 Message Date
Lokesh Vutla
acf1500138 arm: v7: Kconfig: Rename CPU_V7 as CPU_V7A
Currently CPU_V7 kconfig symbol supports only ARMv7A architectures under
armv7 folder. This led to a misconception of creating separate folders
for armv7m and armv7r. There is no reason to create separate folder for
other armv7 based architectures when it can co-exist with few Kconfig
symbols.

As a first step towards a common folder, rename CPU_V7 as CPUV7A. Later
separate Kconfig symbols can be added for CPU_V7R and CPU_V7M and
can co exist in the same folder.

Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Suggested-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-05-07 15:53:24 -04:00
Patrick Delaunay
41c79775f0 arm: stm32mp1: add PSCI support
Add PSCI v1.0 support for Linux and manage PSCI state
for each CPU (affinity 0 level) with all mandatory functions:
- PSCI_VERSION
- CPU_SUSPEND
- CPU_OFF
- CPU_ON
- AFFINITY_INFO
- SYSTEM_OFF
- SYSTEM_RESET
- PSCI_FEATURES
and 1 optional to avoid Linux warning
- MIGRATE_INFO_TYPE

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: CITOOLS <smet-aci-reviews@lists.codex.cro.st.com>
2018-05-07 11:52:48 -04:00
Andre Przywara
7842b6a91e arm: move SYS_ARCH_TIMER to KConfig
SYS_ARCH_TIMER guards the usage of the ARM Generic Timer (aka arch
timer) in U-Boot.
At the moment it is mandatory for ARMv8 and used by a few ARMv7 boards.
Add a proper Kconfig symbol to express this dependency properly,
allowing certain board configuration to later disable arch timer in case
there are any problems with it.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
[tuomas: rebase + fix conflicts and resync with moveconfig & use select]
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
2018-04-28 18:30:43 -04:00
Patrick Delaunay
86634a93b4 stm32mp: handle SYSRESET
Add support of sysreset with generic driver "syscon-reboot"
provided by RCC, for U-boot and for SPL.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-04-06 20:45:44 -04:00
Patrick Delaunay
11dfd1a331 stm32mp1: select boot device and partition
Bootrom loads SPL from SDCARD or eMMC
according BootPin selection.

Then SPL loads U-Boot on the same mmc device
with the following predefined GPT partitioning:

on SDCARD: gpt partitioning
  1: SPL
  2: SPL#2
  3: U-Boot
  4: bootable partition

on eMMC:
  The 2 boot partitions are used for SPL (2 copy)
    boot1: SPL
    boot2: SPL#2
  The user partition use gpt partitioning
    1: U-Boot
    2: bootable partition

This patch select the correct SPL partition
(3 for SDCARD on mmc0 and 1 for eMMC on mmc1)
according the BootRom information saved in TAMP register
and based on configuration flasg:
- CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
  => for BOOT_DEVICE_MMC1 or mmc 0 in U-Boot
- CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_MMC2 (new)
  => for BOOT_DEVICE_MMC2 or mmc 1 in U-Boot

And the correct boot_targets is selected according the environment
variables boot_device and boot_instance, with preboot command,
to search the bootable partition with kernel on this device
(generic distro support).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-04-06 20:45:28 -04:00
Patrick Delaunay
f8598d9815 board: st: add generic board for STM32MP1 family
Add first support for STM32MP157C-ED1 board with "Basic" boot chain
1/ Boot Rom: load SPL with STM32 image header in SYSRAM
2/ SPL: power up and initialize the DDR and load U-Boot image
        from SDCARD in DDR
3/ U-Boot: search and load extlinux.conf in SDCARD
           (DISTRO activated)

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19 16:14:22 -04:00
Patrick Delaunay
2514c2d0e6 arm: stm32: add new architecture for STM32MP family
- add new arch stm32mp for STM32 MPU/Soc based on Cortex A
- support for stm32mp157 SOC
- SPL is used as first boot stage loader
- using driver model for all the drivers, even in SPL
- all security feature are deactivated (ETZC and TZC)
- reused STM32 MCU drivers when it is possible

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19 16:14:21 -04:00