diff options
| author | Sergey Kambalin <serg.oker@gmail.com> | 2024-02-25 18:02:57 -0600 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-02-27 15:24:20 +0000 |
| commit | cda5a7d640d9aa0260a9c21939a30059096715a0 (patch) | |
| tree | 7111515a44b142cfc6660f76f8fa77057decf911 | |
| parent | 2f79d2ed648124f193f813fb26a264997bcb1c38 (diff) | |
hw/misc/bcm2835_property: Add missed BCM2835 properties
Our model of the bcm2835 mailbox is missing a few properties
that we need for the raspi4 kernel:
* RPI_FWREQ_GET_CLOCKS
* RPI_FWREQ_GET_THROTTLED
* RPI_FWREQ_VCHIQ_INIT
Add minimal implementations of them.
Signed-off-by: Sergey Kambalin <sergey.kambalin@auriga.com>
Message-id: 20240226000259.2752893-40-sergey.kambalin@auriga.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: improved commit message]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | hw/misc/bcm2835_property.c | 21 | ||||
| -rw-r--r-- | include/hw/arm/raspberrypi-fw-defs.h | 11 |
2 files changed, 32 insertions, 0 deletions
diff --git a/hw/misc/bcm2835_property.c b/hw/misc/bcm2835_property.c index 5c48f8d743..bdd9a6bbce 100644 --- a/hw/misc/bcm2835_property.c +++ b/hw/misc/bcm2835_property.c @@ -19,6 +19,8 @@ #include "trace.h" #include "hw/arm/raspi_platform.h" +#define VCHI_BUSADDR_SIZE sizeof(uint32_t) + /* https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface */ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value) @@ -138,6 +140,13 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value) resplen = 8; break; + case RPI_FWREQ_GET_CLOCKS: + /* TODO: add more clock IDs if needed */ + stl_le_phys(&s->dma_as, value + 12, 0); + stl_le_phys(&s->dma_as, value + 16, RPI_FIRMWARE_ARM_CLK_ID); + resplen = 8; + break; + case RPI_FWREQ_SET_CLOCK_RATE: case RPI_FWREQ_SET_MAX_CLOCK_RATE: case RPI_FWREQ_SET_MIN_CLOCK_RATE: @@ -276,6 +285,7 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value) stl_le_phys(&s->dma_as, value + 12, 0); resplen = 4; break; + case RPI_FWREQ_FRAMEBUFFER_GET_NUM_DISPLAYS: stl_le_phys(&s->dma_as, value + 12, 1); resplen = 4; @@ -301,6 +311,17 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value) resplen); break; + case RPI_FWREQ_GET_THROTTLED: + stl_le_phys(&s->dma_as, value + 12, 0); + resplen = 4; + break; + + case RPI_FWREQ_VCHIQ_INIT: + stl_le_phys(&s->dma_as, + value + offsetof(rpi_firmware_prop_request_t, payload), + 0); + resplen = VCHI_BUSADDR_SIZE; + break; default: qemu_log_mask(LOG_UNIMP, "bcm2835_property: unhandled tag 0x%08x\n", tag); diff --git a/include/hw/arm/raspberrypi-fw-defs.h b/include/hw/arm/raspberrypi-fw-defs.h index 579cf0d554..8b404e0533 100644 --- a/include/hw/arm/raspberrypi-fw-defs.h +++ b/include/hw/arm/raspberrypi-fw-defs.h @@ -159,4 +159,15 @@ enum rpi_firmware_clk_id { RPI_FIRMWARE_NUM_CLK_ID, }; +struct rpi_firmware_property_tag_header { + uint32_t tag; + uint32_t buf_size; + uint32_t req_resp_size; +}; + +typedef struct rpi_firmware_prop_request { + struct rpi_firmware_property_tag_header hdr; + uint8_t payload[0]; +} rpi_firmware_prop_request_t; + #endif /* INCLUDE_HW_MISC_RASPBERRYPI_FW_DEFS_H_ */ |