1 // Copyright 2018 The Fuchsia Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <ddk/debug.h>
6 #include <ddk/device.h>
7 #include <ddk/metadata.h>
8 #include <ddk/platform-defs.h>
9 #include <ddk/protocol/ethernet.h>
10 #include <soc/aml-s912/s912-gpio.h>
11 #include <soc/aml-s912/s912-hw.h>
12
13 #include <limits.h>
14
15 #include "vim.h"
16
17 static const pbus_gpio_t eth_board_gpios[] = {
18 {
19 // MAC_RST
20 .gpio = S912_GPIOZ(14),
21 },
22 {
23 // MAC_INTR (need to wire up interrupt?)
24 .gpio = S912_GPIOZ(15),
25 },
26 };
27
28 static const pbus_irq_t eth_mac_irqs[] = {
29 {
30 .irq = S912_ETH_GMAC_IRQ,
31 .mode = ZX_INTERRUPT_MODE_EDGE_HIGH,
32 },
33 };
34
35 static const pbus_mmio_t eth_board_mmios[] = {
36 {
37 .base = PERIPHS_REG_BASE,
38 .length = PERIPHS_REG_SIZE,
39 },
40 {
41 .base = HHI_REG_BASE,
42 .length = HHI_REG_SIZE,
43 },
44 };
45
46 static const pbus_mmio_t eth_mac_mmios[] = {
47 {
48 .base = ETH_MAC_REG_BASE,
49 .length = ETH_MAC_REG_SIZE,
50 },
51 };
52
53 static const pbus_bti_t eth_mac_btis[] = {
54 {
55 .iommu_index = 0,
56 .bti_id = 0,
57 },
58 };
59
60 static const pbus_boot_metadata_t eth_mac_metadata[] = {
61 {
62 .zbi_type = DEVICE_METADATA_MAC_ADDRESS,
63 .zbi_extra = 0,
64 },
65 };
66
67 static const eth_dev_metadata_t eth_phy_device = {
68 .vid = PDEV_VID_REALTEK,
69 .pid = PDEV_PID_RTL8211F,
70 .did = PDEV_DID_ETH_PHY,
71 };
72
73 static const pbus_metadata_t eth_mac_device_metadata[] = {
74 {
75 .type = DEVICE_METADATA_PRIVATE,
76 .data_buffer = ð_phy_device,
77 .data_size = sizeof(eth_dev_metadata_t),
78 },
79 };
80
81 static const eth_dev_metadata_t eth_mac_device = {
82 .vid = PDEV_VID_DESIGNWARE,
83 .did = PDEV_DID_ETH_MAC,
84 };
85
86 static const pbus_metadata_t eth_board_metadata[] = {
87 {
88 .type = DEVICE_METADATA_PRIVATE,
89 .data_buffer = ð_mac_device,
90 .data_size = sizeof(eth_dev_metadata_t),
91 },
92 };
93
94 static const pbus_i2c_channel_t vim2_mcu_i2c[] = {
95 {
96 .bus_id = 1,
97 .address = 0x18,
98 },
99 };
100
101 static const pbus_dev_t eth_board_children[] = {
102 // Designware MAC.
103 {
104 .name = "dwmac",
105 .mmio_list = eth_mac_mmios,
106 .mmio_count = countof(eth_mac_mmios),
107 .bti_list = eth_mac_btis,
108 .bti_count = countof(eth_mac_btis),
109 .irq_list = eth_mac_irqs,
110 .irq_count = countof(eth_mac_irqs),
111 .metadata_list = eth_mac_device_metadata,
112 .metadata_count = countof(eth_mac_device_metadata),
113 .boot_metadata_list = eth_mac_metadata,
114 .boot_metadata_count = countof(eth_mac_metadata),
115 },
116 };
117
118 static pbus_dev_t eth_board_dev = {
119 .name = "ethernet_mac",
120 .vid = PDEV_VID_KHADAS,
121 .pid = PDEV_PID_VIM2,
122 .did = PDEV_DID_AMLOGIC_ETH,
123 .mmio_list = eth_board_mmios,
124 .mmio_count = countof(eth_board_mmios),
125 .gpio_list = eth_board_gpios,
126 .gpio_count = countof(eth_board_gpios),
127 .i2c_channel_list = vim2_mcu_i2c,
128 .i2c_channel_count = countof(vim2_mcu_i2c),
129 .metadata_list = eth_board_metadata,
130 .metadata_count = countof(eth_board_metadata),
131 .child_list = eth_board_children,
132 .child_count = countof(eth_board_children),
133 };
134
vim_eth_init(vim_bus_t * bus)135 zx_status_t vim_eth_init(vim_bus_t* bus) {
136
137 // setup pinmux for RGMII connections
138 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_MDIO, S912_ETH_MDIO_FN);
139 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_MDC, S912_ETH_MDC_FN);
140 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_RGMII_RX_CLK,
141 S912_ETH_RGMII_RX_CLK_FN);
142 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_RX_DV, S912_ETH_RX_DV_FN);
143 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_RXD0, S912_ETH_RXD0_FN);
144 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_RXD1, S912_ETH_RXD1_FN);
145 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_RXD2, S912_ETH_RXD2_FN);
146 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_RXD3, S912_ETH_RXD3_FN);
147
148 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_RGMII_TX_CLK,
149 S912_ETH_RGMII_TX_CLK_FN);
150 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_TX_EN, S912_ETH_TX_EN_FN);
151 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_TXD0, S912_ETH_TXD0_FN);
152 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_TXD1, S912_ETH_TXD1_FN);
153 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_TXD2, S912_ETH_TXD2_FN);
154 gpio_impl_set_alt_function(&bus->gpio, S912_ETH_TXD3, S912_ETH_TXD3_FN);
155
156 zx_status_t status = pbus_device_add(&bus->pbus, ð_board_dev);
157
158 if (status != ZX_OK) {
159 zxlogf(ERROR, "vim_eth_init: pbus_device_add failed: %d\n", status);
160 }
161 return status;
162 }
163