| // Copyright 2020 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <fidl/fuchsia.hardware.platform.bus/cpp/driver/fidl.h> |
| #include <fidl/fuchsia.hardware.platform.bus/cpp/fidl.h> |
| #include <fidl/fuchsia.hardware.sdmmc/cpp/wire.h> |
| #include <fidl/fuchsia.power.system/cpp/fidl.h> |
| #include <fuchsia/hardware/sdmmc/c/banjo.h> |
| #include <lib/ddk/binding.h> |
| #include <lib/ddk/debug.h> |
| #include <lib/ddk/metadata.h> |
| #include <lib/ddk/platform-defs.h> |
| #include <lib/driver/component/cpp/composite_node_spec.h> |
| #include <lib/driver/component/cpp/node_add_args.h> |
| |
| #include <bind/fuchsia/amlogic/platform/cpp/bind.h> |
| #include <bind/fuchsia/clock/cpp/bind.h> |
| #include <bind/fuchsia/cpp/bind.h> |
| #include <bind/fuchsia/gpio/cpp/bind.h> |
| #include <bind/fuchsia/hardware/clock/cpp/bind.h> |
| #include <bind/fuchsia/hardware/gpio/cpp/bind.h> |
| #include <bind/fuchsia/platform/cpp/bind.h> |
| #include <soc/aml-a311d/a311d-gpio.h> |
| #include <soc/aml-a311d/a311d-hw.h> |
| #include <soc/aml-common/aml-sdmmc.h> |
| #include <soc/aml-meson/g12b-clk.h> |
| |
| #include "src/devices/board/drivers/vim3/vim3-gpios.h" |
| #include "src/devices/board/drivers/vim3/vim3.h" |
| |
| namespace fdf { |
| using namespace fuchsia_driver_framework; |
| } // namespace fdf |
| |
| namespace vim3 { |
| namespace fpbus = fuchsia_hardware_platform_bus; |
| #define BIT_MASK(start, count) (((1 << (count)) - 1) << (start)) |
| #define SET_BITS(dest, start, count, value) \ |
| ((dest & ~BIT_MASK(start, count)) | (((value) << (start)) & BIT_MASK(start, count))) |
| |
| static const std::vector<fpbus::Mmio> emmc_mmios{ |
| {{ |
| .base = A311D_EMMC_C_BASE, |
| .length = A311D_EMMC_C_LENGTH, |
| }}, |
| }; |
| |
| static const std::vector<fpbus::Irq> emmc_irqs{ |
| {{ |
| .irq = A311D_SD_EMMC_C_IRQ, |
| .mode = ZX_INTERRUPT_MODE_EDGE_HIGH, |
| }}, |
| }; |
| |
| static const std::vector<fpbus::Bti> emmc_btis{ |
| {{ |
| .iommu_index = 0, |
| .bti_id = BTI_EMMC, |
| }}, |
| }; |
| |
| static const std::vector<fpbus::BootMetadata> emmc_boot_metadata{ |
| {{ |
| .zbi_type = DEVICE_METADATA_PARTITION_MAP, |
| .zbi_extra = 0, |
| }}, |
| }; |
| |
| constexpr fuchsia_power_broker::PowerLevel kPowerLevelOff = 0; |
| constexpr fuchsia_power_broker::PowerLevel kPowerLevelOn = 1; |
| |
| // This power element represents the SDMMC controller hardware. Its passive dependency on SAG's |
| // (Execution State, wake handling) allows for orderly power down of the hardware before the CPU |
| // suspends scheduling. |
| fuchsia_hardware_power::PowerElementConfiguration hardware_power_config() { |
| constexpr char kPowerElementName[] = "aml-sdmmc-hardware"; |
| |
| auto transitions_from_off = |
| std::vector<fuchsia_hardware_power::Transition>{fuchsia_hardware_power::Transition{{ |
| .target_level = kPowerLevelOn, |
| .latency_us = 100, |
| }}}; |
| auto transitions_from_on = |
| std::vector<fuchsia_hardware_power::Transition>{fuchsia_hardware_power::Transition{{ |
| .target_level = kPowerLevelOff, |
| .latency_us = 200, |
| }}}; |
| fuchsia_hardware_power::PowerLevel off = { |
| {.level = kPowerLevelOff, .name = "off", .transitions = transitions_from_off}}; |
| fuchsia_hardware_power::PowerLevel on = { |
| {.level = kPowerLevelOn, .name = "on", .transitions = transitions_from_on}}; |
| fuchsia_hardware_power::PowerElement hardware_power = {{ |
| .name = kPowerElementName, |
| .levels = {{off, on}}, |
| }}; |
| |
| fuchsia_hardware_power::LevelTuple on_to_wake_handling = {{ |
| .child_level = kPowerLevelOn, |
| .parent_level = |
| static_cast<uint8_t>(fuchsia_power_system::ExecutionStateLevel::kWakeHandling), |
| }}; |
| fuchsia_hardware_power::PowerDependency passive_on_exec_state_wake_handling = {{ |
| .child = kPowerElementName, |
| .parent = fuchsia_hardware_power::ParentElement::WithSag( |
| fuchsia_hardware_power::SagElement::kExecutionState), |
| .level_deps = {{on_to_wake_handling}}, |
| .strength = fuchsia_hardware_power::RequirementType::kPassive, |
| }}; |
| |
| fuchsia_hardware_power::PowerElementConfiguration hardware_power_config = { |
| {.element = hardware_power, .dependencies = {{passive_on_exec_state_wake_handling}}}}; |
| return hardware_power_config; |
| } |
| |
| // This power element does not represent hardware. It is used to keep the system from suspending |
| // when the driver gets a request and the hardware is off, such that the driver is able to raise the |
| // hardware power level to completion and serve the requests. It is implemented as a dependency on |
| // (Wake Handling, active). |
| fuchsia_hardware_power::PowerElementConfiguration system_wake_on_request_power_config() { |
| constexpr char kPowerElementName[] = "aml-sdmmc-system-wake-on-request"; |
| |
| auto transitions_from_off = |
| std::vector<fuchsia_hardware_power::Transition>{fuchsia_hardware_power::Transition{{ |
| .target_level = kPowerLevelOn, |
| .latency_us = 0, |
| }}}; |
| auto transitions_from_on = |
| std::vector<fuchsia_hardware_power::Transition>{fuchsia_hardware_power::Transition{{ |
| .target_level = kPowerLevelOff, |
| .latency_us = 0, |
| }}}; |
| fuchsia_hardware_power::PowerLevel off = { |
| {.level = kPowerLevelOff, .name = "off", .transitions = transitions_from_off}}; |
| fuchsia_hardware_power::PowerLevel on = { |
| {.level = kPowerLevelOn, .name = "on", .transitions = transitions_from_on}}; |
| fuchsia_hardware_power::PowerElement wake_on_request = {{ |
| .name = kPowerElementName, |
| .levels = {{off, on}}, |
| }}; |
| |
| fuchsia_hardware_power::LevelTuple on_to_active = {{ |
| .child_level = kPowerLevelOn, |
| .parent_level = static_cast<uint8_t>(fuchsia_power_system::WakeHandlingLevel::kActive), |
| }}; |
| fuchsia_hardware_power::PowerDependency active_on_wake_handling_active = {{ |
| .child = kPowerElementName, |
| .parent = fuchsia_hardware_power::ParentElement::WithSag( |
| fuchsia_hardware_power::SagElement::kWakeHandling), |
| .level_deps = {{on_to_active}}, |
| .strength = fuchsia_hardware_power::RequirementType::kActive, |
| }}; |
| |
| fuchsia_hardware_power::PowerElementConfiguration wake_on_request_config = { |
| {.element = wake_on_request, .dependencies = {{active_on_wake_handling_active}}}}; |
| return wake_on_request_config; |
| } |
| |
| std::vector<fuchsia_hardware_power::PowerElementConfiguration> emmc_power_configs() { |
| return std::vector<fuchsia_hardware_power::PowerElementConfiguration>{ |
| hardware_power_config(), system_wake_on_request_power_config()}; |
| } |
| |
| const std::vector<fdf::BindRule> kClockGateRules = std::vector{ |
| fdf::MakeAcceptBindRule(bind_fuchsia_hardware_clock::SERVICE, |
| bind_fuchsia_hardware_clock::SERVICE_ZIRCONTRANSPORT), |
| fdf::MakeAcceptBindRule(bind_fuchsia::CLOCK_ID, g12b_clk::G12B_CLK_EMMC_C), |
| }; |
| |
| const std::vector<fdf::NodeProperty> kClockGateProperties = std::vector{ |
| fdf::MakeProperty(bind_fuchsia_hardware_clock::SERVICE, |
| bind_fuchsia_hardware_clock::SERVICE_ZIRCONTRANSPORT), |
| }; |
| |
| const std::vector<fdf::BindRule> kGpioResetRules = std::vector{ |
| fdf::MakeAcceptBindRule(bind_fuchsia_hardware_gpio::SERVICE, |
| bind_fuchsia_hardware_gpio::SERVICE_ZIRCONTRANSPORT), |
| fdf::MakeAcceptBindRule(bind_fuchsia::GPIO_CONTROLLER, VIM3_GPIO_ID), |
| fdf::MakeAcceptBindRule(bind_fuchsia::GPIO_PIN, static_cast<uint32_t>(A311D_GPIOBOOT(12))), |
| }; |
| |
| const std::vector<fdf::NodeProperty> kGpioResetProperties = std::vector{ |
| fdf::MakeProperty(bind_fuchsia_hardware_gpio::SERVICE, |
| bind_fuchsia_hardware_gpio::SERVICE_ZIRCONTRANSPORT), |
| fdf::MakeProperty(bind_fuchsia_gpio::FUNCTION, bind_fuchsia_gpio::FUNCTION_SDMMC_RESET), |
| }; |
| |
| const std::vector<fdf::BindRule> kGpioInitRules = std::vector{ |
| fdf::MakeAcceptBindRule(bind_fuchsia::INIT_STEP, bind_fuchsia_gpio::BIND_INIT_STEP_GPIO), |
| }; |
| |
| const std::vector<fdf::NodeProperty> kGpioInitProperties = std::vector{ |
| fdf::MakeProperty(bind_fuchsia::INIT_STEP, bind_fuchsia_gpio::BIND_INIT_STEP_GPIO), |
| }; |
| |
| zx_status_t Vim3::EmmcInit() { |
| fidl::Arena<> fidl_arena; |
| |
| fit::result sdmmc_metadata = |
| fidl::Persist(fuchsia_hardware_sdmmc::wire::SdmmcMetadata::Builder(fidl_arena) |
| .max_frequency(120'000'000) |
| .speed_capabilities(fuchsia_hardware_sdmmc::SdmmcHostPrefs::kDisableHs400) |
| .Build()); |
| if (!sdmmc_metadata.is_ok()) { |
| zxlogf(ERROR, "Failed to encode SDMMC metadata: %s", |
| sdmmc_metadata.error_value().FormatDescription().c_str()); |
| return sdmmc_metadata.error_value().status(); |
| } |
| |
| const std::vector<fpbus::Metadata> emmc_metadata{ |
| {{ |
| .type = DEVICE_METADATA_SDMMC, |
| .data = std::move(sdmmc_metadata.value()), |
| }}, |
| }; |
| |
| fpbus::Node emmc_dev; |
| emmc_dev.name() = "aml_emmc"; |
| emmc_dev.vid() = bind_fuchsia_amlogic_platform::BIND_PLATFORM_DEV_VID_AMLOGIC; |
| emmc_dev.pid() = bind_fuchsia_platform::BIND_PLATFORM_DEV_PID_GENERIC; |
| emmc_dev.did() = bind_fuchsia_amlogic_platform::BIND_PLATFORM_DEV_DID_SDMMC_C; |
| emmc_dev.mmio() = emmc_mmios; |
| emmc_dev.irq() = emmc_irqs; |
| emmc_dev.bti() = emmc_btis; |
| emmc_dev.metadata() = emmc_metadata; |
| emmc_dev.boot_metadata() = emmc_boot_metadata; |
| emmc_dev.power_config() = emmc_power_configs(); |
| |
| // set alternate functions to enable EMMC |
| gpio_init_steps_.push_back({A311D_GPIOBOOT(0), GpioSetAltFunction(A311D_GPIOBOOT_0_EMMC_D0_FN)}); |
| gpio_init_steps_.push_back({A311D_GPIOBOOT(1), GpioSetAltFunction(A311D_GPIOBOOT_1_EMMC_D1_FN)}); |
| gpio_init_steps_.push_back({A311D_GPIOBOOT(2), GpioSetAltFunction(A311D_GPIOBOOT_2_EMMC_D2_FN)}); |
| gpio_init_steps_.push_back({A311D_GPIOBOOT(3), GpioSetAltFunction(A311D_GPIOBOOT_3_EMMC_D3_FN)}); |
| gpio_init_steps_.push_back({A311D_GPIOBOOT(4), GpioSetAltFunction(A311D_GPIOBOOT_4_EMMC_D4_FN)}); |
| gpio_init_steps_.push_back({A311D_GPIOBOOT(5), GpioSetAltFunction(A311D_GPIOBOOT_5_EMMC_D5_FN)}); |
| gpio_init_steps_.push_back({A311D_GPIOBOOT(6), GpioSetAltFunction(A311D_GPIOBOOT_6_EMMC_D6_FN)}); |
| gpio_init_steps_.push_back({A311D_GPIOBOOT(7), GpioSetAltFunction(A311D_GPIOBOOT_7_EMMC_D7_FN)}); |
| gpio_init_steps_.push_back({A311D_GPIOBOOT(8), GpioSetAltFunction(A311D_GPIOBOOT_8_EMMC_CLK_FN)}); |
| gpio_init_steps_.push_back( |
| {A311D_GPIOBOOT(10), GpioSetAltFunction(A311D_GPIOBOOT_10_EMMC_CMD_FN)}); |
| // gpio_init_steps_.push_back({A311D_GPIOBOOT(12), GpioSetAltFunction(1)}); |
| gpio_init_steps_.push_back( |
| {A311D_GPIOBOOT(13), GpioSetAltFunction(A311D_GPIOBOOT_13_EMMC_DS_FN)}); |
| |
| gpio_init_steps_.push_back({A311D_GPIOBOOT(14), GpioConfigOut(1)}); |
| |
| std::vector<fdf::ParentSpec> kEmmcParents = { |
| fdf::ParentSpec{{kClockGateRules, kClockGateProperties}}, |
| fdf::ParentSpec{{kGpioInitRules, kGpioInitProperties}}, |
| fdf::ParentSpec{{kGpioResetRules, kGpioResetProperties}}}; |
| |
| fdf::Arena arena('EMMC'); |
| auto result = pbus_.buffer(arena)->AddCompositeNodeSpec( |
| fidl::ToWire(fidl_arena, emmc_dev), |
| fidl::ToWire(fidl_arena, fuchsia_driver_framework::CompositeNodeSpec{ |
| {.name = "aml_emmc", .parents = kEmmcParents}})); |
| if (!result.ok()) { |
| zxlogf(ERROR, "AddCompositeNodeSpec Emmc(emmc_dev) request failed: %s", |
| result.FormatDescription().data()); |
| return result.status(); |
| } |
| if (result->is_error()) { |
| zxlogf(ERROR, "AddCompositeNodeSpec Emmc(emmc_dev) failed: %s", |
| zx_status_get_string(result->error_value())); |
| return result->error_value(); |
| } |
| |
| return ZX_OK; |
| } |
| } // namespace vim3 |