| // 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/debug.h> |
| #include <ddk/metadata.h> |
| #include <ddk/protocol/platform-defs.h> |
| #include <hw/reg.h> |
| #include <soc/aml-s905d2/s905d2-hw.h> |
| #include <soc/aml-s905d2/s905d2-gpio.h> |
| #include <soc/aml-common/aml-sd-emmc.h> |
| #include <wifi/wifi-config.h> |
| |
| #include "astro.h" |
| |
| static const pbus_gpio_t wifi_gpios[] = { |
| { |
| .gpio = S905D2_WIFI_SDIO_WAKE_HOST, |
| }, |
| }; |
| |
| static const wifi_config_t wifi_config = { |
| .oob_irq_mode = ZX_INTERRUPT_MODE_LEVEL_HIGH, |
| }; |
| |
| static const pbus_metadata_t wifi_metadata[] = { |
| { |
| .type = DEVICE_METADATA_PRIVATE, |
| .data = &wifi_config, |
| .len = sizeof(wifi_config), |
| } |
| }; |
| |
| static const pbus_dev_t sdio_children[] = { |
| { |
| // Wifi driver. |
| .name = "astro-wifi", |
| .gpios = wifi_gpios, |
| .gpio_count = countof(wifi_gpios), |
| .metadata = wifi_metadata, |
| .metadata_count = countof(wifi_metadata), |
| }, |
| }; |
| |
| static const pbus_dev_t aml_sd_emmc_children[] = { |
| { |
| // Generic SDIO driver. |
| .name = "sdio", |
| .children = sdio_children, |
| .child_count = countof(sdio_children), |
| }, |
| }; |
| |
| static const pbus_mmio_t aml_sd_emmc_mmios[] = { |
| { |
| .base = S905D2_EMMC_A_SDIO_BASE, |
| .length = S905D2_EMMC_A_SDIO_LENGTH, |
| }, |
| }; |
| |
| static const pbus_irq_t aml_sd_emmc_irqs[] = { |
| { |
| .irq = S905D2_EMMC_A_SDIO_IRQ, |
| }, |
| }; |
| |
| static const pbus_bti_t aml_sd_emmc_btis[] = { |
| { |
| .iommu_index = 0, |
| .bti_id = BTI_SDIO, |
| }, |
| }; |
| |
| static const pbus_gpio_t aml_sd_emmc_gpios[] = { |
| { |
| .gpio = S905D2_GPIOX(6), |
| }, |
| { |
| // TODO remove this after Wifi adapter is updated to access its GPIOs |
| // using platform device protocol |
| .gpio = S905D2_WIFI_SDIO_WAKE_HOST, |
| }, |
| }; |
| |
| static aml_sd_emmc_config_t config = { |
| //PORTA on s905D2 does not support DMA. |
| .supports_dma = false, |
| // TODO: Astro fails the I/O requests if the frequency is more than 25MHz. |
| // The same succeeds on vim2. This could probably be because of the PORT issues on astro. |
| // Set the right frequency once the PORT issues are resolved. |
| .max_freq = 25000000, |
| .min_freq = 400000, |
| }; |
| |
| static const pbus_metadata_t aml_sd_emmc_metadata[] = { |
| { |
| .type = DEVICE_METADATA_PRIVATE, |
| .data = &config, |
| .len = sizeof(config), |
| } |
| }; |
| |
| static const pbus_dev_t aml_sd_emmc_dev = { |
| .name = "aml-sdio", |
| .vid = PDEV_VID_AMLOGIC, |
| .pid = PDEV_PID_GENERIC, |
| .did = PDEV_DID_AMLOGIC_SD_EMMC, |
| .mmios = aml_sd_emmc_mmios, |
| .mmio_count = countof(aml_sd_emmc_mmios), |
| .irqs = aml_sd_emmc_irqs, |
| .irq_count = countof(aml_sd_emmc_irqs), |
| .btis = aml_sd_emmc_btis, |
| .bti_count = countof(aml_sd_emmc_btis), |
| .gpios = aml_sd_emmc_gpios, |
| .gpio_count = countof(aml_sd_emmc_gpios), |
| .metadata = aml_sd_emmc_metadata, |
| .metadata_count = countof(aml_sd_emmc_metadata), |
| .children = aml_sd_emmc_children, |
| .child_count = countof(aml_sd_emmc_children), |
| }; |
| |
| zx_status_t aml_sdio_init(aml_bus_t* bus) { |
| zx_status_t status; |
| |
| // set alternate functions to enable EMMC |
| gpio_impl_set_alt_function(&bus->gpio, S905D2_WIFI_SDIO_D0, S905D2_WIFI_SDIO_D0_FN); |
| gpio_impl_set_alt_function(&bus->gpio, S905D2_WIFI_SDIO_D1, S905D2_WIFI_SDIO_D1_FN); |
| gpio_impl_set_alt_function(&bus->gpio, S905D2_WIFI_SDIO_D2, S905D2_WIFI_SDIO_D2_FN); |
| gpio_impl_set_alt_function(&bus->gpio, S905D2_WIFI_SDIO_D3, S905D2_WIFI_SDIO_D3_FN); |
| gpio_impl_set_alt_function(&bus->gpio, S905D2_WIFI_SDIO_CLK, S905D2_WIFI_SDIO_CLK_FN); |
| gpio_impl_set_alt_function(&bus->gpio, S905D2_WIFI_SDIO_CMD, S905D2_WIFI_SDIO_CMD_FN); |
| gpio_impl_set_alt_function(&bus->gpio, S905D2_WIFI_SDIO_WAKE_HOST, |
| S905D2_WIFI_SDIO_WAKE_HOST_FN); |
| if ((status = pbus_device_add(&bus->pbus, &aml_sd_emmc_dev)) != ZX_OK) { |
| zxlogf(ERROR, "aml_sdio_init could not add aml_sd_emmc_dev: %d\n", status); |
| return status; |
| } |
| |
| return ZX_OK; |
| } |