qemu-e2k/hw/riscv/trace-events
Fabien Chouteau 30efbf330a
SiFive RISC-V GPIO Device
QEMU model of the GPIO device on the SiFive E300 series SOCs.

The pins are not used by a board definition yet, however this
implementation can already be used to trigger GPIO interrupts from the
software by configuring a pin as both output and input.

Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-05-24 11:58:30 -07:00

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# See docs/devel/tracing.txt for syntax documentation.
# hw/gpio/sifive_gpio.c
sifive_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64
sifive_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 0x%" PRIx64
sifive_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
sifive_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64