Please find below a set of patches, which allow to simulate Microchip PIC32 microcontrollers on QEMU. For examples of real PIC32 applications running on QEMU, see page: https://github.com/sergev/qemu/wiki
(1) Make the CPU clock frequency configurable per platform. Currently the clock rate for all MIPS platforms is fixed at 100MHz. Need to make it 40MHz for pic32mx7. (2) For TLBWR instruction, the generated random index value has been not quite random and did not take into account the Wired register value. Fixed. (3) Added support for external interrupt controller mode (EIC). Required for pic32. (4) Added two processor variants: M4K and microAptivUP. Needed for pic32mx and pic32mz simulation. (5) Added two machine platforms: Microchip pic32mx7 and pic32mz microcontrollers. Several board types supported for each platform: pic32mx7-explorer16 PIC32MX7 microcontroller on Microchip Explorer-16 board pic32mx7-max32 PIC32MX7 microcontroller on chipKIT Max32 board pic32mx7-maximite PIC32MX7 microcontroller on Geoff's Maximite computer pic32mz-explorer16 PIC32MZ microcontroller on Microchip Explorer-16 board pic32mz-meb2 PIC32MZ microcontroller on Microchip MEB-II board pic32mz-wifire PIC32MZ microcontroller on chipKIT WiFire board Serge Vakulenko (5): Speed of MIPS CPU timer made configurable per platform. Fixed random index generation for TLBWR instruction. It was not quite random and did not skip Wired entries. Added support for external interrupt controller (EIC) mode. Two new processor variants: M4K and microAptivP. Two new machine platforms: pic32mz7 and pic32mz. hw/mips/Makefile.objs | 3 + hw/mips/cputimer.c | 48 +- hw/mips/mips_fulong2e.c | 2 +- hw/mips/mips_int.c | 12 +- hw/mips/mips_jazz.c | 2 +- hw/mips/mips_malta.c | 4 +- hw/mips/mips_mipssim.c | 2 +- hw/mips/mips_pic32mx7.c | 1652 ++++++++++++++++++++++++ hw/mips/mips_pic32mz.c | 2840 ++++++++++++++++++++++++++++++++++++++++++ hw/mips/mips_r4k.c | 2 +- hw/mips/pic32_ethernet.c | 557 +++++++++ hw/mips/pic32_gpio.c | 39 + hw/mips/pic32_load_hex.c | 238 ++++ hw/mips/pic32_peripherals.h | 210 ++++ hw/mips/pic32_sdcard.c | 428 +++++++ hw/mips/pic32_spi.c | 121 ++ hw/mips/pic32_uart.c | 228 ++++ hw/mips/pic32mx.h | 1290 +++++++++++++++++++ hw/mips/pic32mz.h | 2093 +++++++++++++++++++++++++++++++ include/hw/mips/cpudevs.h | 2 +- target-mips/cpu.h | 12 +- target-mips/helper.c | 20 +- target-mips/translate_init.c | 46 + 23 files changed, 9814 insertions(+), 37 deletions(-) create mode 100644 hw/mips/mips_pic32mx7.c create mode 100644 hw/mips/mips_pic32mz.c create mode 100644 hw/mips/pic32_ethernet.c create mode 100644 hw/mips/pic32_gpio.c create mode 100644 hw/mips/pic32_load_hex.c create mode 100644 hw/mips/pic32_peripherals.h create mode 100644 hw/mips/pic32_sdcard.c create mode 100644 hw/mips/pic32_spi.c create mode 100644 hw/mips/pic32_uart.c create mode 100644 hw/mips/pic32mx.h create mode 100644 hw/mips/pic32mz.h -- 1.9.1