openSdev

Free/Open Source Embedded Software Development

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About:

Hello, I am Shivamurthy Shastri, an Embedded Linux Engineer with 13+ years experience.
openSdev is a space for me to work on Free and Open Source Softwares.

Work Experience:

Linux Kernel: BSP, Device Drivers, Board Bring-up, Build systems

• Board bring-up of Samsung Arndale board(Exynos 5250), Socionext SC1810A SoC(Cortex A9, Quad core)
• Device drivers for PWM, Watchdog, ADC, GPIO, USART, External Interrupt Controller, eMMC, NAND, and SPI NAND
• Device drivers for Signal Conditioning and Data Acquisition boards (interfaces: ADC, Digital I/O, UART)
• Device drivers for GSM board, ARINC429
• Customizing initramfs, rootfs, and kernel config
• Device Tree
• Kernel test frameworks like LTP, kselftest, iozone, fio, nvme-cli etc
• Yocto, OpenEmbedded, and Buildroot

U-boot: Device Drivers, Board Bring-up

• Board bring-up of Socionext SC1810A SoC(Cortex A9, Quad core)
• Device drivers for GPIO, NAND and eMMC in SPL, U-boot
• Boot infrastructure in SPL and U-boot to boot Kernel
• Boot time optimization (booting Kernel from SPL)

UEFI: Design/Development of Drivers, Board bring-up, Bug fixing

• Board bring-up of Samsung Arndale board(Exynos 5250)
• Samsung Server boards(Exynos 5440, Exynos 7842), HiKey 96 board(HiSilicon Kirin 620)
• Device drivers for Ethernet Controller(Synopsys GMAC and XGMAC), MDIO and Ethernet PHY(Marvell 88E1111), XAUI
• Device drivers for USB2.0(Synopsys OTG Controller), PCIe Root Complex, UART
• Reset protocol, SMBIOS platform driver, GRUB support, EFI Stubbed kernel booting
• eMMC, Fastboot, Apple USB-Eth Dongle (Ax88772b)

Opensource Participation:

Linux Kernel

1. git.kernel.org
2. linux-mtd
3. linux-mmc

U-boot

1. gitlab.denx.de
2. u-boot

UEFI

1. Tianocore EDK2
2. Samsung Arndale Board (or this link)
3. HiSilicon HiKey Board

Development Kits/Boards/Hardwares:

Boards

• Raspberry Pi 4 (Model B): ARM64-bit development board
• Raspberry Pi 3 (Model B): ARM64-bit development board
• HiKey 96 boards: ARM64-bit development board
• Hikey 960 boards: ARM64-bit development board
• Carbon 96 board: ARM Cortex M4 development board
• BeagleBone Blue: ARM Cortex M3 development board
• Bubblegum-96: ARM64-bit development board

Tools

• Open Workbench Logic Sniffer(Logic Analyzer)
• Bus Blaster v4(JTAG debugger)

Links

Email • GitHub • Twitter

Ⓒ 2017-2022 openSdev