ad06d56fc7
The Luminary variant of the PL061 has registers GPIOPUR and GPIOPDR which lets the guest configure whether the GPIO lines are pull-up, pull-down, or truly floating. Instead of assuming all lines are pulled high, honour the PUR and PDR registers. For the plain PL061, continue to assume that lines have an external pull-up resistor, as we did before. The stellaris board actually relies on this behaviour -- the CD line of the ssd0323 display device is connected to GPIO output C7, and it is only because of a different bug which we're about to fix that we weren't incorrectly driving this line high on reset and putting the ssd0323 into data mode. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
29 lines
2.0 KiB
Plaintext
29 lines
2.0 KiB
Plaintext
# See docs/devel/tracing.rst for syntax documentation.
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# npcm7xx_gpio.c
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npcm7xx_gpio_read(const char *id, uint64_t offset, uint64_t value) " %s offset: 0x%04" PRIx64 " value 0x%08" PRIx64
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npcm7xx_gpio_write(const char *id, uint64_t offset, uint64_t value) "%s offset: 0x%04" PRIx64 " value 0x%08" PRIx64
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npcm7xx_gpio_set_input(const char *id, int32_t line, int32_t level) "%s line: %" PRIi32 " level: %" PRIi32
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npcm7xx_gpio_set_output(const char *id, int32_t line, int32_t level) "%s line: %" PRIi32 " level: %" PRIi32
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npcm7xx_gpio_update_events(const char *id, uint32_t evst, uint32_t even) "%s evst: 0x%08" PRIx32 " even: 0x%08" PRIx32
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# nrf51_gpio.c
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nrf51_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64
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nrf51_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 0x%" PRIx64
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nrf51_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
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nrf51_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
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# pl061.c
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pl061_update(const char *id, uint32_t dir, uint32_t data, uint32_t pullups, uint32_t floating) "%s GPIODIR 0x%x GPIODATA 0x%x pullups 0x%x floating 0x%x"
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pl061_set_output(const char *id, int gpio, int level) "%s setting output %d to %d"
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pl061_input_change(const char *id, int gpio, int level) "%s input %d changed to %d"
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pl061_update_istate(const char *id, uint32_t istate, uint32_t im, int level) "%s GPIORIS 0x%x GPIOIE 0x%x interrupt level %d"
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pl061_read(const char *id, uint64_t offset, uint64_t r) "%s offset 0x%" PRIx64 " value 0x%" PRIx64
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pl061_write(const char *id, uint64_t offset, uint64_t value) "%s offset 0x%" PRIx64 " value 0x%" PRIx64
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# sifive_gpio.c
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sifive_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64
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sifive_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 0x%" PRIx64
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sifive_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
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sifive_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
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