From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- include/soc/bcm2835/raspberrypi-firmware.h | 252 +++++++++++++++++++++++++++++ 1 file changed, 252 insertions(+) create mode 100644 include/soc/bcm2835/raspberrypi-firmware.h (limited to 'include/soc/bcm2835') diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h new file mode 100644 index 000000000..975bef529 --- /dev/null +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -0,0 +1,252 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright © 2015 Broadcom + */ + +#ifndef __SOC_RASPBERRY_FIRMWARE_H__ +#define __SOC_RASPBERRY_FIRMWARE_H__ + +#include +#include + +struct rpi_firmware; + +enum rpi_firmware_property_status { + RPI_FIRMWARE_STATUS_REQUEST = 0, + RPI_FIRMWARE_STATUS_SUCCESS = 0x80000000, + RPI_FIRMWARE_STATUS_ERROR = 0x80000001, +}; + +/** + * struct rpi_firmware_property_tag_header - Firmware property tag header + * @tag: One of enum_mbox_property_tag. + * @buf_size: The number of bytes in the value buffer following this + * struct. + * @req_resp_size: On submit, the length of the request (though it doesn't + * appear to be currently used by the firmware). On return, + * the length of the response (always 4 byte aligned), with + * the low bit set. + */ +struct rpi_firmware_property_tag_header { + u32 tag; + u32 buf_size; + u32 req_resp_size; +}; + +enum rpi_firmware_property_tag { + RPI_FIRMWARE_PROPERTY_END = 0, + RPI_FIRMWARE_GET_FIRMWARE_REVISION = 0x00000001, + + RPI_FIRMWARE_SET_CURSOR_INFO = 0x00008010, + RPI_FIRMWARE_SET_CURSOR_STATE = 0x00008011, + + RPI_FIRMWARE_GET_BOARD_MODEL = 0x00010001, + RPI_FIRMWARE_GET_BOARD_REVISION = 0x00010002, + RPI_FIRMWARE_GET_BOARD_MAC_ADDRESS = 0x00010003, + RPI_FIRMWARE_GET_BOARD_SERIAL = 0x00010004, + RPI_FIRMWARE_GET_ARM_MEMORY = 0x00010005, + RPI_FIRMWARE_GET_VC_MEMORY = 0x00010006, + RPI_FIRMWARE_GET_CLOCKS = 0x00010007, + RPI_FIRMWARE_GET_POWER_STATE = 0x00020001, + RPI_FIRMWARE_GET_TIMING = 0x00020002, + RPI_FIRMWARE_SET_POWER_STATE = 0x00028001, + RPI_FIRMWARE_GET_CLOCK_STATE = 0x00030001, + RPI_FIRMWARE_GET_CLOCK_RATE = 0x00030002, + RPI_FIRMWARE_GET_VOLTAGE = 0x00030003, + RPI_FIRMWARE_GET_MAX_CLOCK_RATE = 0x00030004, + RPI_FIRMWARE_GET_MAX_VOLTAGE = 0x00030005, + RPI_FIRMWARE_GET_TEMPERATURE = 0x00030006, + RPI_FIRMWARE_GET_MIN_CLOCK_RATE = 0x00030007, + RPI_FIRMWARE_GET_MIN_VOLTAGE = 0x00030008, + RPI_FIRMWARE_GET_TURBO = 0x00030009, + RPI_FIRMWARE_GET_MAX_TEMPERATURE = 0x0003000a, + RPI_FIRMWARE_GET_STC = 0x0003000b, + RPI_FIRMWARE_ALLOCATE_MEMORY = 0x0003000c, + RPI_FIRMWARE_LOCK_MEMORY = 0x0003000d, + RPI_FIRMWARE_UNLOCK_MEMORY = 0x0003000e, + RPI_FIRMWARE_RELEASE_MEMORY = 0x0003000f, + RPI_FIRMWARE_EXECUTE_CODE = 0x00030010, + RPI_FIRMWARE_EXECUTE_QPU = 0x00030011, + RPI_FIRMWARE_SET_ENABLE_QPU = 0x00030012, + RPI_FIRMWARE_GET_DISPMANX_RESOURCE_MEM_HANDLE = 0x00030014, + RPI_FIRMWARE_GET_EDID_BLOCK = 0x00030020, + RPI_FIRMWARE_GET_CUSTOMER_OTP = 0x00030021, + RPI_FIRMWARE_GET_DOMAIN_STATE = 0x00030030, + RPI_FIRMWARE_GET_THROTTLED = 0x00030046, + RPI_FIRMWARE_GET_CLOCK_MEASURED = 0x00030047, + RPI_FIRMWARE_NOTIFY_REBOOT = 0x00030048, + RPI_FIRMWARE_SET_CLOCK_STATE = 0x00038001, + RPI_FIRMWARE_SET_CLOCK_RATE = 0x00038002, + RPI_FIRMWARE_SET_VOLTAGE = 0x00038003, + RPI_FIRMWARE_SET_TURBO = 0x00038009, + RPI_FIRMWARE_SET_CUSTOMER_OTP = 0x00038021, + RPI_FIRMWARE_SET_DOMAIN_STATE = 0x00038030, + RPI_FIRMWARE_GET_GPIO_STATE = 0x00030041, + RPI_FIRMWARE_SET_GPIO_STATE = 0x00038041, + RPI_FIRMWARE_SET_SDHOST_CLOCK = 0x00038042, + RPI_FIRMWARE_GET_GPIO_CONFIG = 0x00030043, + RPI_FIRMWARE_SET_GPIO_CONFIG = 0x00038043, + RPI_FIRMWARE_GET_PERIPH_REG = 0x00030045, + RPI_FIRMWARE_SET_PERIPH_REG = 0x00038045, + RPI_FIRMWARE_GET_POE_HAT_VAL = 0x00030049, + RPI_FIRMWARE_SET_POE_HAT_VAL = 0x00030050, + RPI_FIRMWARE_NOTIFY_XHCI_RESET = 0x00030058, + RPI_FIRMWARE_NOTIFY_DISPLAY_DONE = 0x00030066, + + /* Dispmanx TAGS */ + RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE = 0x00040001, + RPI_FIRMWARE_FRAMEBUFFER_BLANK = 0x00040002, + RPI_FIRMWARE_FRAMEBUFFER_GET_PHYSICAL_WIDTH_HEIGHT = 0x00040003, + RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_WIDTH_HEIGHT = 0x00040004, + RPI_FIRMWARE_FRAMEBUFFER_GET_DEPTH = 0x00040005, + RPI_FIRMWARE_FRAMEBUFFER_GET_PIXEL_ORDER = 0x00040006, + RPI_FIRMWARE_FRAMEBUFFER_GET_ALPHA_MODE = 0x00040007, + RPI_FIRMWARE_FRAMEBUFFER_GET_PITCH = 0x00040008, + RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_OFFSET = 0x00040009, + RPI_FIRMWARE_FRAMEBUFFER_GET_OVERSCAN = 0x0004000a, + RPI_FIRMWARE_FRAMEBUFFER_GET_PALETTE = 0x0004000b, + RPI_FIRMWARE_FRAMEBUFFER_GET_TOUCHBUF = 0x0004000f, + RPI_FIRMWARE_FRAMEBUFFER_GET_GPIOVIRTBUF = 0x00040010, + RPI_FIRMWARE_FRAMEBUFFER_RELEASE = 0x00048001, + RPI_FIRMWARE_FRAMEBUFFER_TEST_PHYSICAL_WIDTH_HEIGHT = 0x00044003, + RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_WIDTH_HEIGHT = 0x00044004, + RPI_FIRMWARE_FRAMEBUFFER_TEST_DEPTH = 0x00044005, + RPI_FIRMWARE_FRAMEBUFFER_TEST_PIXEL_ORDER = 0x00044006, + RPI_FIRMWARE_FRAMEBUFFER_TEST_ALPHA_MODE = 0x00044007, + RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_OFFSET = 0x00044009, + RPI_FIRMWARE_FRAMEBUFFER_TEST_OVERSCAN = 0x0004400a, + RPI_FIRMWARE_FRAMEBUFFER_TEST_PALETTE = 0x0004400b, + RPI_FIRMWARE_FRAMEBUFFER_TEST_VSYNC = 0x0004400e, + RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT = 0x00048003, + RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT = 0x00048004, + RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH = 0x00048005, + RPI_FIRMWARE_FRAMEBUFFER_SET_PIXEL_ORDER = 0x00048006, + RPI_FIRMWARE_FRAMEBUFFER_SET_ALPHA_MODE = 0x00048007, + RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET = 0x00048009, + RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN = 0x0004800a, + RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE = 0x0004800b, + RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF = 0x0004801f, + RPI_FIRMWARE_FRAMEBUFFER_SET_GPIOVIRTBUF = 0x00048020, + RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC = 0x0004800e, + RPI_FIRMWARE_FRAMEBUFFER_SET_BACKLIGHT = 0x0004800f, + + RPI_FIRMWARE_VCHIQ_INIT = 0x00048010, + + RPI_FIRMWARE_GET_COMMAND_LINE = 0x00050001, + RPI_FIRMWARE_GET_DMA_CHANNELS = 0x00060001, +}; + +enum rpi_firmware_clk_id { + RPI_FIRMWARE_EMMC_CLK_ID = 1, + RPI_FIRMWARE_UART_CLK_ID, + RPI_FIRMWARE_ARM_CLK_ID, + RPI_FIRMWARE_CORE_CLK_ID, + RPI_FIRMWARE_V3D_CLK_ID, + RPI_FIRMWARE_H264_CLK_ID, + RPI_FIRMWARE_ISP_CLK_ID, + RPI_FIRMWARE_SDRAM_CLK_ID, + RPI_FIRMWARE_PIXEL_CLK_ID, + RPI_FIRMWARE_PWM_CLK_ID, + RPI_FIRMWARE_HEVC_CLK_ID, + RPI_FIRMWARE_EMMC2_CLK_ID, + RPI_FIRMWARE_M2MC_CLK_ID, + RPI_FIRMWARE_PIXEL_BVB_CLK_ID, + RPI_FIRMWARE_VEC_CLK_ID, + RPI_FIRMWARE_DISP_CLK_ID, + RPI_FIRMWARE_NUM_CLK_ID, +}; + +enum rpi_firmware_volt_id { + RPI_FIRMWARE_VOLT_ID_CORE = 1, + RPI_FIRMWARE_VOLT_ID_SDRAM_C = 2, + RPI_FIRMWARE_VOLT_ID_SDRAM_P = 3, + RPI_FIRMWARE_VOLT_ID_SDRAM_I = 4, + RPI_FIRMWARE_NUM_VOLT_ID, +}; + +/** + * struct rpi_firmware_get_voltage_request - Firmware request for a voltage + * @id: ID of the voltage being queried + * @value: Voltage in microvolts. Set by the firmware. + * + * Used by @RPI_FIRMWARE_GET_VOLTAGE. + */ +struct rpi_firmware_get_voltage_request { + __le32 id; + __le32 value; +} __packed; + +#define RPI_FIRMWARE_GET_VOLTAGE_REQUEST(_id) \ + { \ + .id = cpu_to_le32(_id), \ + } + +/** + * struct rpi_firmware_clk_rate_request - Firmware Request for a rate + * @id: ID of the clock being queried + * @rate: Rate in Hertz. Set by the firmware. + * + * Used by @RPI_FIRMWARE_GET_CLOCK_RATE, @RPI_FIRMWARE_GET_CLOCK_MEASURED, + * @RPI_FIRMWARE_GET_MAX_CLOCK_RATE and @RPI_FIRMWARE_GET_MIN_CLOCK_RATE. + */ +struct rpi_firmware_clk_rate_request { + __le32 id; + __le32 rate; +} __packed; + +#define RPI_FIRMWARE_CLK_RATE_REQUEST(_id) \ + { \ + .id = cpu_to_le32(_id), \ + } + +#if IS_ENABLED(CONFIG_RASPBERRYPI_FIRMWARE) +int rpi_firmware_property(struct rpi_firmware *fw, + u32 tag, void *data, size_t len); +int rpi_firmware_property_list(struct rpi_firmware *fw, + void *data, size_t tag_size); +void rpi_firmware_put(struct rpi_firmware *fw); +unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw, + unsigned int id); +struct device_node *rpi_firmware_find_node(void); +struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node); +struct rpi_firmware *devm_rpi_firmware_get(struct device *dev, + struct device_node *firmware_node); +#else +static inline int rpi_firmware_property(struct rpi_firmware *fw, u32 tag, + void *data, size_t len) +{ + return -ENOSYS; +} + +static inline int rpi_firmware_property_list(struct rpi_firmware *fw, + void *data, size_t tag_size) +{ + return -ENOSYS; +} + +static inline void rpi_firmware_put(struct rpi_firmware *fw) { } + +static inline unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw, + unsigned int id) +{ + return UINT_MAX; +} + +static inline struct device_node *rpi_firmware_find_node(void) +{ + return NULL; +} + +static inline struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node) +{ + return NULL; +} + +static inline struct rpi_firmware *devm_rpi_firmware_get(struct device *dev, + struct device_node *firmware_node) +{ + return NULL; +} +#endif + +#endif /* __SOC_RASPBERRY_FIRMWARE_H__ */ -- cgit v1.3.1