| // 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 <unistd.h> |
| #include <zircon/hw/gpt.h> |
| |
| #include <ddk/debug.h> |
| #include <ddk/device.h> |
| #include <ddk/io-buffer.h> |
| #include <ddk/metadata.h> |
| #include <ddk/metadata/nand.h> |
| #include <ddk/platform-defs.h> |
| #include <ddk/protocol/gpio.h> |
| #include <ddk/protocol/platform/bus.h> |
| #include <hw/reg.h> |
| #include <soc/aml-a113/a113-hw.h> |
| |
| #include "gauss-hw.h" |
| #include "gauss.h" |
| |
| static const pbus_mmio_t raw_nand_mmios[] = { |
| { |
| /* nandreg : Registers for NAND controller */ |
| .base = GAUSS_RAW_NAND_REG, |
| .length = 0x2000, |
| }, |
| { |
| /* clockreg : Clock Register for NAND controller */ |
| /* |
| * From the Linux devicetree. This is the base SD_EMMC_CLOCK |
| * register (for port C) |
| */ |
| .base = GAUSS_RAW_NAND_CLKREG, |
| .length = 0x4, /* Just 4 bytes */ |
| }, |
| }; |
| |
| static const pbus_irq_t raw_nand_irqs[] = { |
| { |
| .irq = GAUSS_RAW_NAND_IRQ, |
| }, |
| }; |
| |
| static const pbus_bti_t raw_nand_btis[] = { |
| { |
| .iommu_index = 0, |
| .bti_id = BTI_AML_RAW_NAND, |
| }, |
| }; |
| |
| static const nand_config_t config = { |
| .bad_block_config = |
| { |
| .type = kAmlogicUboot, |
| .aml_uboot = |
| { |
| .table_start_block = 20, |
| .table_end_block = 23, |
| }, |
| }, |
| .extra_partition_config_count = 1, |
| .extra_partition_config = |
| { |
| { |
| .type_guid = GUID_BOOTLOADER_VALUE, |
| .copy_count = 4, |
| }, |
| }, |
| }; |
| |
| static const pbus_metadata_t raw_nand_metadata[] = { |
| { |
| .type = DEVICE_METADATA_PRIVATE, |
| .data_buffer = &config, |
| .data_size = sizeof(config), |
| }, |
| }; |
| |
| static const pbus_boot_metadata_t raw_nand_boot_metadata[] = { |
| { |
| .zbi_type = DEVICE_METADATA_PARTITION_MAP, |
| .zbi_extra = 0, |
| }, |
| }; |
| |
| static const pbus_dev_t raw_nand_dev = { |
| .name = "aml_raw_nand", |
| .vid = PDEV_VID_AMLOGIC, |
| .pid = PDEV_PID_GENERIC, |
| .did = PDEV_DID_AMLOGIC_RAW_NAND, |
| .mmio_list = raw_nand_mmios, |
| .mmio_count = countof(raw_nand_mmios), |
| .irq_list = raw_nand_irqs, |
| .irq_count = countof(raw_nand_irqs), |
| .bti_list = raw_nand_btis, |
| .bti_count = countof(raw_nand_btis), |
| .metadata_list = raw_nand_metadata, |
| .metadata_count = countof(raw_nand_metadata), |
| .boot_metadata_list = raw_nand_boot_metadata, |
| .boot_metadata_count = countof(raw_nand_boot_metadata), |
| }; |
| |
| zx_status_t gauss_raw_nand_init(gauss_bus_t* bus) { |
| zx_status_t status; |
| |
| // set alternate functions to enable raw_nand |
| status = gpio_impl_set_alt_function(&bus->gpio, A113_GPIOBOOT(8), 2); |
| if (status != ZX_OK) |
| return status; |
| status = gpio_impl_set_alt_function(&bus->gpio, A113_GPIOBOOT(9), 2); |
| if (status != ZX_OK) |
| return status; |
| status = gpio_impl_set_alt_function(&bus->gpio, A113_GPIOBOOT(10), 2); |
| if (status != ZX_OK) |
| return status; |
| status = gpio_impl_set_alt_function(&bus->gpio, A113_GPIOBOOT(11), 2); |
| if (status != ZX_OK) |
| return status; |
| status = gpio_impl_set_alt_function(&bus->gpio, A113_GPIOBOOT(12), 2); |
| if (status != ZX_OK) |
| return status; |
| status = gpio_impl_set_alt_function(&bus->gpio, A113_GPIOBOOT(13), 2); |
| if (status != ZX_OK) |
| return status; |
| |
| status = pbus_device_add(&bus->pbus, &raw_nand_dev); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "gauss_raw_nand_init: pbus_device_add raw_nand failed: %d", status); |
| return status; |
| } |
| |
| return ZX_OK; |
| } |