| // Copyright 2018 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 <ddk/binding.h> |
| #include <ddk/debug.h> |
| #include <ddk/metadata.h> |
| #include <ddk/platform-defs.h> |
| #include <ddktl/protocol/gpioimpl.h> |
| #include <fbl/algorithm.h> |
| #include <hw/reg.h> |
| #include <hwreg/bitfields.h> |
| #include <lib/mmio/mmio.h> |
| #include <lib/zx/handle.h> |
| #include <soc/aml-common/aml-sd-emmc.h> |
| #include <soc/aml-t931/t931-gpio.h> |
| #include <soc/aml-t931/t931-hw.h> |
| #include <wifi/wifi-config.h> |
| |
| #include <optional> |
| |
| #include "sherlock.h" |
| |
| namespace sherlock { |
| |
| namespace { |
| |
| constexpr uint32_t kGpioBase = fbl::round_down<uint32_t, uint32_t>(T931_GPIO_BASE, PAGE_SIZE); |
| constexpr uint32_t kGpioBaseOffset = T931_GPIO_BASE - kGpioBase; |
| |
| class PadDsReg2A : public hwreg::RegisterBase<PadDsReg2A, uint32_t> { |
| public: |
| static constexpr uint32_t kDriveStrengthMax = 3; |
| |
| static auto Get() { return hwreg::RegisterAddr<PadDsReg2A>((0xd2 * 4) + kGpioBaseOffset); } |
| |
| DEF_FIELD(1, 0, gpiox_0_select); |
| DEF_FIELD(3, 2, gpiox_1_select); |
| DEF_FIELD(5, 4, gpiox_2_select); |
| DEF_FIELD(7, 6, gpiox_3_select); |
| DEF_FIELD(9, 8, gpiox_4_select); |
| DEF_FIELD(11, 10, gpiox_5_select); |
| }; |
| |
| constexpr pbus_boot_metadata_t wifi_boot_metadata[] = { |
| { |
| .zbi_type = DEVICE_METADATA_MAC_ADDRESS, |
| .zbi_extra = MACADDR_WIFI, |
| }, |
| }; |
| |
| constexpr pbus_mmio_t sd_emmc_mmios[] = { |
| { |
| .base = T931_SD_EMMC_A_BASE, |
| .length = T931_SD_EMMC_A_LENGTH, |
| }, |
| }; |
| |
| constexpr pbus_irq_t sd_emmc_irqs[] = { |
| { |
| .irq = T931_SD_EMMC_A_IRQ, |
| .mode = ZX_INTERRUPT_MODE_EDGE_HIGH, |
| }, |
| }; |
| |
| constexpr pbus_bti_t sd_emmc_btis[] = { |
| { |
| .iommu_index = 0, |
| .bti_id = BTI_SDIO, |
| }, |
| }; |
| |
| constexpr aml_sd_emmc_config_t sd_emmc_config = { |
| .supports_dma = false, |
| .min_freq = 500'000, // 500KHz |
| .max_freq = 208'000'000, // 208MHz |
| .clock_phases = |
| { |
| .init = {.core_phase = 3, .tx_phase = 0}, |
| .hs = {.core_phase = 1, .tx_phase = 0}, |
| .legacy = {.core_phase = 0, .tx_phase = 2}, |
| .ddr = {.core_phase = 2, .tx_phase = 0}, |
| .hs2 = {.core_phase = 3, .tx_phase = 0}, |
| .hs4 = {.core_phase = 0, .tx_phase = 0}, |
| .sdr104 = {.core_phase = 2, .tx_phase = 0}, |
| }, |
| }; |
| |
| constexpr wifi_config_t wifi_config = { |
| .oob_irq_mode = ZX_INTERRUPT_MODE_LEVEL_HIGH, |
| }; |
| |
| constexpr pbus_metadata_t sd_emmc_metadata[] = { |
| { |
| .type = DEVICE_METADATA_EMMC_CONFIG, |
| .data_buffer = &sd_emmc_config, |
| .data_size = sizeof(sd_emmc_config), |
| }, |
| { |
| .type = DEVICE_METADATA_WIFI_CONFIG, |
| .data_buffer = &wifi_config, |
| .data_size = sizeof(wifi_config), |
| }, |
| }; |
| |
| const pbus_dev_t sdio_dev = []() { |
| pbus_dev_t dev = {}; |
| dev.name = "sherlock-sd-emmc"; |
| dev.vid = PDEV_VID_AMLOGIC; |
| dev.pid = PDEV_PID_GENERIC; |
| dev.did = PDEV_DID_AMLOGIC_SD_EMMC_A; |
| dev.mmio_list = sd_emmc_mmios; |
| dev.mmio_count = countof(sd_emmc_mmios); |
| dev.bti_list = sd_emmc_btis; |
| dev.bti_count = countof(sd_emmc_btis); |
| dev.irq_list = sd_emmc_irqs; |
| dev.irq_count = countof(sd_emmc_irqs); |
| dev.metadata_list = sd_emmc_metadata; |
| dev.metadata_count = countof(sd_emmc_metadata); |
| dev.boot_metadata_list = wifi_boot_metadata; |
| dev.boot_metadata_count = countof(wifi_boot_metadata); |
| return dev; |
| }(); |
| |
| // Composite binding rules for wifi driver. |
| constexpr zx_bind_inst_t root_match[] = { |
| BI_MATCH(), |
| }; |
| constexpr zx_bind_inst_t sdio_fn1_match[] = { |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_SDIO), BI_ABORT_IF(NE, BIND_SDIO_VID, 0x02d0), |
| BI_ABORT_IF(NE, BIND_SDIO_FUNCTION, 1), BI_MATCH_IF(EQ, BIND_SDIO_PID, 0x4345), |
| BI_MATCH_IF(EQ, BIND_SDIO_PID, 0x4359), |
| }; |
| constexpr zx_bind_inst_t sdio_fn2_match[] = { |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_SDIO), BI_ABORT_IF(NE, BIND_SDIO_VID, 0x02d0), |
| BI_ABORT_IF(NE, BIND_SDIO_FUNCTION, 2), BI_MATCH_IF(EQ, BIND_SDIO_PID, 0x4345), |
| BI_MATCH_IF(EQ, BIND_SDIO_PID, 0x4359), |
| }; |
| constexpr zx_bind_inst_t oob_gpio_match[] = { |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_GPIO), |
| BI_MATCH_IF(EQ, BIND_GPIO_PIN, T931_WIFI_HOST_WAKE), |
| }; |
| constexpr device_component_part_t sdio_fn1_component[] = { |
| {fbl::count_of(root_match), root_match}, |
| {fbl::count_of(sdio_fn1_match), sdio_fn1_match}, |
| }; |
| constexpr device_component_part_t sdio_fn2_component[] = { |
| {fbl::count_of(root_match), root_match}, |
| {fbl::count_of(sdio_fn2_match), sdio_fn2_match}, |
| }; |
| constexpr device_component_part_t oob_gpio_component[] = { |
| {fbl::count_of(root_match), root_match}, |
| {fbl::count_of(oob_gpio_match), oob_gpio_match}, |
| }; |
| constexpr device_component_t wifi_composite[] = { |
| {fbl::count_of(sdio_fn1_component), sdio_fn1_component}, |
| {fbl::count_of(sdio_fn2_component), sdio_fn2_component}, |
| {fbl::count_of(oob_gpio_component), oob_gpio_component}, |
| }; |
| |
| // Composite binding rules for SDIO. |
| constexpr zx_bind_inst_t wifi_pwren_gpio_match[] = { |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_GPIO), |
| BI_MATCH_IF(EQ, BIND_GPIO_PIN, T931_WIFI_REG_ON), |
| }; |
| constexpr device_component_part_t wifi_pwren_gpio_component[] = { |
| {fbl::count_of(root_match), root_match}, |
| {fbl::count_of(wifi_pwren_gpio_match), wifi_pwren_gpio_match}, |
| }; |
| constexpr device_component_t sdio_components[] = { |
| {fbl::count_of(wifi_pwren_gpio_component), wifi_pwren_gpio_component}, |
| }; |
| |
| } // namespace |
| |
| zx_status_t Sherlock::BCM43458LpoClockInit() { |
| auto status = gpio_impl_.SetAltFunction(T931_WIFI_LPO_CLK, T931_WIFI_LPO_CLK_FN); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| zx::bti bti; |
| status = iommu_.GetBti(BTI_BOARD, 0, &bti); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: GetBti() error: %d\n", __func__, status); |
| return status; |
| } |
| |
| std::optional<ddk::MmioBuffer> buf; |
| // Please do not use get_root_resource() in new code. See ZX-1467. |
| zx::unowned_resource res(get_root_resource()); |
| status = ddk::MmioBuffer::Create(T931_PWM_EF_BASE, T931_PWM_LENGTH, *res, |
| ZX_CACHE_POLICY_UNCACHED_DEVICE, &buf); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: ddk::MmioBuffer::Create() error: %d\n", __func__, status); |
| return status; |
| } |
| |
| // Enable PWM_E to satisfy the 32.7KHz LPO clock source. |
| // These values were taken from: |
| // linux/drivers/amlogic/pwm/pwm_meson.c |
| buf->Write32(0x016d016e, T931_PWM_PWM_E); |
| buf->Write32(0x016d016d, T931_PWM_E2); |
| buf->Write32(0x0a0a0609, T931_PWM_TIME_EF); |
| buf->Write32(0x02808003, T931_PWM_MISC_REG_EF); |
| |
| return ZX_OK; |
| } |
| |
| zx_status_t Sherlock::SdioInit() { |
| zx_status_t status; |
| |
| // Configure eMMC-SD soc pads. |
| if (((status = gpio_impl_.SetAltFunction(T931_SDIO_D0, T931_SDIO_D0_FN)) != ZX_OK) || |
| ((status = gpio_impl_.SetAltFunction(T931_SDIO_D1, T931_SDIO_D1_FN)) != ZX_OK) || |
| ((status = gpio_impl_.SetAltFunction(T931_SDIO_D2, T931_SDIO_D2_FN)) != ZX_OK) || |
| ((status = gpio_impl_.SetAltFunction(T931_SDIO_D3, T931_SDIO_D3_FN)) != ZX_OK) || |
| ((status = gpio_impl_.SetAltFunction(T931_SDIO_CLK, T931_SDIO_CLK_FN)) != ZX_OK) || |
| ((status = gpio_impl_.SetAltFunction(T931_SDIO_CMD, T931_SDIO_CMD_FN)) != ZX_OK)) { |
| return status; |
| } |
| |
| std::optional<ddk::MmioBuffer> buf; |
| zx::unowned_resource res(get_root_resource()); |
| status = ddk::MmioBuffer::Create(kGpioBase, kGpioBaseOffset + T931_GPIO_LENGTH, *res, |
| ZX_CACHE_POLICY_UNCACHED_DEVICE, &buf); |
| |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: ddk::MmioBuffer::Create() error: %d\n", __func__, status); |
| return status; |
| } |
| |
| PadDsReg2A::Get() |
| .ReadFrom(&(*buf)) |
| .set_gpiox_0_select(PadDsReg2A::kDriveStrengthMax) |
| .set_gpiox_1_select(PadDsReg2A::kDriveStrengthMax) |
| .set_gpiox_2_select(PadDsReg2A::kDriveStrengthMax) |
| .set_gpiox_3_select(PadDsReg2A::kDriveStrengthMax) |
| .set_gpiox_4_select(PadDsReg2A::kDriveStrengthMax) |
| .set_gpiox_5_select(PadDsReg2A::kDriveStrengthMax) |
| .WriteTo(&(*buf)); |
| |
| status = gpio_impl_.SetAltFunction(T931_WIFI_REG_ON, T931_WIFI_REG_ON_FN); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| status = gpio_impl_.SetAltFunction(T931_WIFI_HOST_WAKE, T931_WIFI_HOST_WAKE_FN); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| status = pbus_.CompositeDeviceAdd(&sdio_dev, sdio_components, fbl::count_of(sdio_components), |
| UINT32_MAX); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: CompositeDeviceAdd() error: %d\n", __func__, status); |
| return status; |
| } |
| |
| // Add a composite device for wifi driver. |
| constexpr zx_device_prop_t props[] = { |
| {BIND_PLATFORM_DEV_VID, 0, PDEV_VID_BROADCOM}, |
| {BIND_PLATFORM_DEV_PID, 0, PDEV_PID_BCM43458}, |
| {BIND_PLATFORM_DEV_DID, 0, PDEV_DID_BCM_WIFI}, |
| }; |
| |
| status = DdkAddComposite("wifi", props, fbl::count_of(props), wifi_composite, |
| fbl::count_of(wifi_composite), 0); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: device_add_composite failed: %d\n", __func__, status); |
| return status; |
| } |
| |
| return ZX_OK; |
| } |
| |
| } // namespace sherlock |