| // 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/device.h> |
| #include <ddk/metadata.h> |
| #include <ddk/metadata/i2c.h> |
| #include <ddk/platform-defs.h> |
| #include <soc/aml-s912/s912-gpio.h> |
| #include <soc/aml-s912/s912-hw.h> |
| |
| #include <limits.h> |
| |
| #include "vim.h" |
| |
| namespace vim { |
| |
| static const pbus_mmio_t i2c_mmios[] = { |
| { |
| .base = S912_I2C_A_BASE, |
| .length = S912_I2C_A_LENGTH, |
| }, |
| { |
| .base = S912_I2C_B_BASE, |
| .length = S912_I2C_B_LENGTH, |
| }, |
| { |
| .base = S912_I2C_C_BASE, |
| .length = S912_I2C_C_LENGTH, |
| }, |
| /* |
| { |
| .base = S912_I2C_D_BASE, |
| .length = S912_I2C_D_LENGTH, |
| }, |
| */ |
| }; |
| |
| static const pbus_irq_t i2c_irqs[] = { |
| { |
| .irq = S912_M_I2C_0_IRQ, |
| .mode = ZX_INTERRUPT_MODE_EDGE_HIGH, |
| }, |
| { |
| .irq = S912_M_I2C_1_IRQ, |
| .mode = ZX_INTERRUPT_MODE_EDGE_HIGH, |
| }, |
| { |
| .irq = S912_M_I2C_2_IRQ, |
| .mode = ZX_INTERRUPT_MODE_EDGE_HIGH, |
| }, |
| /* |
| { |
| .irq = S912_M_I2C_3_IRQ, |
| .mode = ZX_INTERRUPT_MODE_EDGE_HIGH, |
| }, |
| */ |
| }; |
| |
| static const i2c_channel_t i2c_channels[] = { |
| // RTC |
| { |
| .bus_id = 1, |
| .address = 0x51, |
| .vid = PDEV_VID_NXP, |
| .pid = PDEV_PID_GENERIC, |
| .did = PDEV_DID_PCF8563_RTC, |
| }, |
| // led2472g |
| { |
| .bus_id = 0, |
| .address = 0x46, |
| .vid = PDEV_VID_GENERIC, |
| .pid = PDEV_PID_GENERIC, |
| .did = PDEV_DID_LED2472G, |
| }, |
| // Ethernet |
| { |
| .bus_id = 1, |
| .address = 0x18, |
| // Binds to a composite device. |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| }; |
| |
| static const pbus_metadata_t i2c_metadata[] = { |
| { |
| .type = DEVICE_METADATA_I2C_CHANNELS, |
| .data_buffer = &i2c_channels, |
| .data_size = sizeof(i2c_channels), |
| } |
| }; |
| zx_status_t Vim::I2cInit() { |
| |
| pbus_dev_t i2c_dev = {}; |
| i2c_dev.name = "i2c"; |
| i2c_dev.vid = PDEV_VID_AMLOGIC; |
| i2c_dev.pid = PDEV_PID_GENERIC; |
| i2c_dev.did = PDEV_DID_AMLOGIC_I2C; |
| i2c_dev.mmio_list = i2c_mmios; |
| i2c_dev.mmio_count = countof(i2c_mmios); |
| i2c_dev.irq_list = i2c_irqs; |
| i2c_dev.irq_count = countof(i2c_irqs); |
| i2c_dev.metadata_list = i2c_metadata; |
| i2c_dev.metadata_count = countof(i2c_metadata); |
| |
| // setup pinmux for our I2C busses |
| // I2C_A and I2C_B are exposed on the 40 pin header and I2C_C on the FPC connector |
| gpio_impl_.SetAltFunction(S912_I2C_SDA_A, S912_I2C_SDA_A_FN); |
| gpio_impl_.SetAltFunction(S912_I2C_SCK_A, S912_I2C_SCK_A_FN); |
| gpio_impl_.SetAltFunction(S912_I2C_SDA_B, S912_I2C_SDA_B_FN); |
| gpio_impl_.SetAltFunction(S912_I2C_SCK_B, S912_I2C_SCK_B_FN); |
| gpio_impl_.SetAltFunction(S912_I2C_SDA_C, S912_I2C_SDA_C_FN); |
| gpio_impl_.SetAltFunction(S912_I2C_SCK_C, S912_I2C_SCK_C_FN); |
| |
| zx_status_t status = pbus_.DeviceAdd(&i2c_dev); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "I2cInit: DeviceAdd failed: %d\n", status); |
| return status; |
| } |
| |
| return ZX_OK; |
| } |
| } //namespace vim |