From be58c81aff4cd4c0ccf43dbd7998da4a6a08c03b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 19:43:51 +0200 Subject: Adding upstream version 2.10.0+dfsg. Signed-off-by: Daniel Baumann --- drivers/scmi-msg/clock.h | 150 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 drivers/scmi-msg/clock.h (limited to 'drivers/scmi-msg/clock.h') diff --git a/drivers/scmi-msg/clock.h b/drivers/scmi-msg/clock.h new file mode 100644 index 0000000..a637934 --- /dev/null +++ b/drivers/scmi-msg/clock.h @@ -0,0 +1,150 @@ +/* SPDX-License-Identifier: BSD-3-Clause */ +/* + * Copyright (c) 2015-2019, Arm Limited and Contributors. All rights reserved. + * Copyright (c) 2019, Linaro Limited + */ + +#ifndef SCMI_MSG_CLOCK_H +#define SCMI_MSG_CLOCK_H + +#include + +#include + +#define SCMI_PROTOCOL_VERSION_CLOCK 0x20000U + +/* + * Identifiers of the SCMI Clock Management Protocol commands + */ +enum scmi_clock_command_id { + SCMI_CLOCK_ATTRIBUTES = 0x003, + SCMI_CLOCK_DESCRIBE_RATES = 0x004, + SCMI_CLOCK_RATE_SET = 0x005, + SCMI_CLOCK_RATE_GET = 0x006, + SCMI_CLOCK_CONFIG_SET = 0x007, +}; + +/* Protocol attributes */ +#define SCMI_CLOCK_CLOCK_COUNT_MASK GENMASK(15, 0) +#define SCMI_CLOCK_MAX_PENDING_TRANSITIONS_MASK GENMASK(23, 16) + +#define SCMI_CLOCK_PROTOCOL_ATTRIBUTES(_max_pending, _clk_count) \ + ((((_max_pending) << 16) & SCMI_CLOCK_MAX_PENDING_TRANSITIONS_MASK) | \ + (((_clk_count) & SCMI_CLOCK_CLOCK_COUNT_MASK))) + +struct scmi_clock_attributes_a2p { + uint32_t clock_id; +}; + +#define SCMI_CLOCK_NAME_LENGTH_MAX 16U + +struct scmi_clock_attributes_p2a { + int32_t status; + uint32_t attributes; + char clock_name[SCMI_CLOCK_NAME_LENGTH_MAX]; +}; + +/* + * Clock Rate Get + */ + +struct scmi_clock_rate_get_a2p { + uint32_t clock_id; +}; + +struct scmi_clock_rate_get_p2a { + int32_t status; + uint32_t rate[2]; +}; + +/* + * Clock Rate Set + */ + +/* If set, set the new clock rate asynchronously */ +#define SCMI_CLOCK_RATE_SET_ASYNC_POS 0 +/* If set, do not send a delayed asynchronous response */ +#define SCMI_CLOCK_RATE_SET_NO_DELAYED_RESPONSE_POS 1 +/* Round up, if set, otherwise round down */ +#define SCMI_CLOCK_RATE_SET_ROUND_UP_POS 2 +/* If set, the platform chooses the appropriate rounding mode */ +#define SCMI_CLOCK_RATE_SET_ROUND_AUTO_POS 3 + +#define SCMI_CLOCK_RATE_SET_ASYNC_MASK \ + BIT(SCMI_CLOCK_RATE_SET_ASYNC_POS) +#define SCMI_CLOCK_RATE_SET_NO_DELAYED_RESPONSE_MASK \ + BIT(SCMI_CLOCK_RATE_SET_NO_DELAYED_RESPONSE_POS) +#define SCMI_CLOCK_RATE_SET_ROUND_UP_MASK \ + BIT(SCMI_CLOCK_RATE_SET_ROUND_UP_POS) +#define SCMI_CLOCK_RATE_SET_ROUND_AUTO_MASK \ + BIT(SCMI_CLOCK_RATE_SET_ROUND_AUTO_POS) + +struct scmi_clock_rate_set_a2p { + uint32_t flags; + uint32_t clock_id; + uint32_t rate[2]; +}; + +struct scmi_clock_rate_set_p2a { + int32_t status; +}; + +/* + * Clock Config Set + */ + +#define SCMI_CLOCK_CONFIG_SET_ENABLE_POS 0 + +#define SCMI_CLOCK_CONFIG_SET_ENABLE_MASK \ + BIT(SCMI_CLOCK_CONFIG_SET_ENABLE_POS) + +struct scmi_clock_config_set_a2p { + uint32_t clock_id; + uint32_t attributes; +}; + +struct scmi_clock_config_set_p2a { + int32_t status; +}; + +/* + * Clock Describe Rates + */ + +#define SCMI_CLOCK_RATE_FORMAT_RANGE 1U +#define SCMI_CLOCK_RATE_FORMAT_LIST 0U + +#define SCMI_CLOCK_DESCRIBE_RATES_REMAINING_MASK GENMASK_32(31, 16) +#define SCMI_CLOCK_DESCRIBE_RATES_REMAINING_POS 16 + +#define SCMI_CLOCK_DESCRIBE_RATES_FORMAT_MASK BIT(12) +#define SCMI_CLOCK_DESCRIBE_RATES_FORMAT_POS 12 + +#define SCMI_CLOCK_DESCRIBE_RATES_COUNT_MASK GENMASK_32(11, 0) + +#define SCMI_CLOCK_DESCRIBE_RATES_NUM_RATES_FLAGS(_count, _fmt, _rem_rates) \ + ( \ + ((_count) & SCMI_CLOCK_DESCRIBE_RATES_COUNT_MASK) | \ + (((_rem_rates) << SCMI_CLOCK_DESCRIBE_RATES_REMAINING_POS) & \ + SCMI_CLOCK_DESCRIBE_RATES_REMAINING_MASK) | \ + (((_fmt) << SCMI_CLOCK_DESCRIBE_RATES_FORMAT_POS) & \ + SCMI_CLOCK_DESCRIBE_RATES_FORMAT_MASK) \ + ) + +struct scmi_clock_rate { + uint32_t low; + uint32_t high; +}; + +struct scmi_clock_describe_rates_a2p { + uint32_t clock_id; + uint32_t rate_index; +}; + +struct scmi_clock_describe_rates_p2a { + int32_t status; + uint32_t num_rates_flags; + struct scmi_clock_rate rates[]; +}; + +#endif /* SCMI_MSG_CLOCK_H */ -- cgit v1.2.3