This patch series adds initial support for SC6531E chip. SC6431E chip is specially designed solution for creating feature phones. It contains * ARM926EJ-S core (up to 208 MHz) * embedded PSRAM * peripherals: USB, SPI, UART, IIS, PCM, I2C, keypad, LCD * SIM card and GSM/GPRS/FM/BT stuff This work is based on FPDoom, see [1], [2], [3] for details. At the moment only timer and debug_ll output via USB are supported. After adding lcd and keypad driver running bareDOOM [4] on SC6531E will be possible. [1] https://github.com/ilyakurdyukov/fpdoom [2] https://habr.com/ru/articles/706766/ [3] https://www.youtube.com/watch?v=tln_Iace1O8 [4] https://github.com/a3f/bareDOOM Antony Pavlov (4): clocksource: add sc6531e driver ARM: add sc6531e and F+ Ezzy 4 phone support sc6531e: add debug_ll support Documentation: add sc6531e instructions Documentation/boards/sc6531e.rst | 187 +++++++++ arch/arm/Kconfig | 10 + arch/arm/Makefile | 1 + arch/arm/boards/Makefile | 1 + arch/arm/boards/ezzy-4/Makefile | 6 + arch/arm/boards/ezzy-4/env/init/automount | 27 ++ arch/arm/boards/ezzy-4/lowlevel.c | 19 + arch/arm/boards/ezzy-4/usbio.c | 449 ++++++++++++++++++++++ arch/arm/configs/ezzy-4_defconfig | 49 +++ arch/arm/cpu/uncompress.c | 7 + arch/arm/dts/Makefile | 1 + arch/arm/dts/ezzy-4.dts | 22 ++ arch/arm/include/asm/debug_ll.h | 2 + arch/arm/mach-sc6531e/Kconfig | 17 + arch/arm/mach-sc6531e/Makefile | 3 + drivers/clocksource/Makefile | 1 + drivers/clocksource/timer-sc6531e.c | 70 ++++ include/mach/sc6531e/debug_ll.h | 17 + 18 files changed, 889 insertions(+) create mode 100644 Documentation/boards/sc6531e.rst create mode 100644 arch/arm/boards/ezzy-4/Makefile create mode 100644 arch/arm/boards/ezzy-4/env/init/automount create mode 100644 arch/arm/boards/ezzy-4/lowlevel.c create mode 100644 arch/arm/boards/ezzy-4/usbio.c create mode 100644 arch/arm/configs/ezzy-4_defconfig create mode 100644 arch/arm/dts/ezzy-4.dts create mode 100644 arch/arm/mach-sc6531e/Kconfig create mode 100644 arch/arm/mach-sc6531e/Makefile create mode 100644 drivers/clocksource/timer-sc6531e.c create mode 100644 include/mach/sc6531e/debug_ll.h -- 2.39.0
