| /* Copyright 2017 IBM Corp. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <skiboot.h> |
| #include <device.h> |
| #include <console.h> |
| #include <chip.h> |
| #include <ipmi.h> |
| #include <psi.h> |
| #include <npu-regs.h> |
| |
| #include "astbmc.h" |
| |
| const struct platform_ocapi zaius_ocapi = { |
| .i2c_engine = 1, |
| .i2c_port = 4, |
| .i2c_offset = { 0x3, 0x1, 0x1 }, |
| .i2c_odl0_data = { 0xFD, 0xFD, 0xFF }, |
| .i2c_odl1_data = { 0xBF, 0xBF, 0xFF }, |
| .odl_phy_swap = true, |
| }; |
| |
| #define NPU_BASE 0x5011000 |
| #define NPU_SIZE 0x2c |
| #define NPU_INDIRECT0 0x8000000009010c3f /* OB0 - no OB3 on Zaius */ |
| |
| /* OpenCAPI only */ |
| static void create_link(struct dt_node *npu, int group, int index) |
| { |
| struct dt_node *link; |
| uint32_t lane_mask; |
| char namebuf[32]; |
| |
| snprintf(namebuf, sizeof(namebuf), "link@%x", index); |
| link = dt_new(npu, namebuf); |
| |
| dt_add_property_string(link, "compatible", "ibm,npu-link-opencapi"); |
| dt_add_property_cells(link, "ibm,npu-link-index", index); |
| |
| switch (index) { |
| case 2: |
| lane_mask = 0xf1e000; /* 0-3, 7-10 */ |
| break; |
| case 3: |
| lane_mask = 0x00078f; /* 13-16, 20-23 */ |
| break; |
| default: |
| assert(0); |
| } |
| |
| dt_add_property_u64s(link, "ibm,npu-phy", NPU_INDIRECT0); |
| dt_add_property_cells(link, "ibm,npu-lane-mask", lane_mask); |
| dt_add_property_cells(link, "ibm,npu-group-id", group); |
| dt_add_property_u64s(link, "ibm,link-speed", 25000000000ul); |
| } |
| |
| /* FIXME: Get rid of this after we get NPU information properly via HDAT/MRW */ |
| static void zaius_create_npu(void) |
| { |
| struct dt_node *xscom, *npu; |
| int npu_index = 0; |
| int phb_index = 7; |
| char namebuf[32]; |
| |
| /* Abort if there's already an NPU in the device tree */ |
| if (dt_find_compatible_node(dt_root, NULL, "ibm,power9-npu")) |
| return; |
| |
| prlog(PR_DEBUG, "OCAPI: Adding NPU device nodes\n"); |
| dt_for_each_compatible(dt_root, xscom, "ibm,xscom") { |
| snprintf(namebuf, sizeof(namebuf), "npu@%x", NPU_BASE); |
| npu = dt_new(xscom, namebuf); |
| dt_add_property_cells(npu, "reg", NPU_BASE, NPU_SIZE); |
| dt_add_property_strings(npu, "compatible", "ibm,power9-npu"); |
| dt_add_property_cells(npu, "ibm,npu-index", npu_index++); |
| dt_add_property_cells(npu, "ibm,phb-index", phb_index++); |
| dt_add_property_cells(npu, "ibm,npu-links", 2); |
| create_link(npu, 1, 2); |
| create_link(npu, 2, 3); |
| } |
| } |
| |
| /* FIXME: Get rid of this after we get NPU information properly via HDAT/MRW */ |
| static void zaius_create_ocapi_i2c_bus(void) |
| { |
| struct dt_node *xscom, *i2cm, *i2c_bus; |
| prlog(PR_DEBUG, "OCAPI: Adding I2C bus device node for OCAPI reset\n"); |
| dt_for_each_compatible(dt_root, xscom, "ibm,xscom") { |
| i2cm = dt_find_by_name(xscom, "i2cm@a1000"); |
| if (!i2cm) { |
| prlog(PR_ERR, "OCAPI: Failed to add I2C bus device node\n"); |
| continue; |
| } |
| |
| if (dt_find_by_name(i2cm, "i2c-bus@4")) |
| continue; |
| |
| i2c_bus = dt_new_addr(i2cm, "i2c-bus", 4); |
| dt_add_property_cells(i2c_bus, "reg", 4); |
| dt_add_property_cells(i2c_bus, "bus-frequency", 0x61a80); |
| dt_add_property_strings(i2c_bus, "compatible", |
| "ibm,opal-i2c", "ibm,power8-i2c-port", |
| "ibm,power9-i2c-port"); |
| } |
| } |
| |
| static bool zaius_probe(void) |
| { |
| if (!dt_node_is_compatible(dt_root, "ingrasys,zaius")) |
| return false; |
| |
| /* Lot of common early inits here */ |
| astbmc_early_init(); |
| |
| /* Setup UART for direct use by Linux */ |
| uart_set_console_policy(UART_CONSOLE_OS); |
| |
| zaius_create_npu(); |
| zaius_create_ocapi_i2c_bus(); |
| |
| return true; |
| } |
| |
| DECLARE_PLATFORM(zaius) = { |
| .name = "Zaius", |
| .probe = zaius_probe, |
| .init = astbmc_init, |
| .start_preload_resource = flash_start_preload_resource, |
| .resource_loaded = flash_resource_loaded, |
| .bmc = NULL, /* FIXME: Add openBMC */ |
| .pci_get_slot_info = slot_table_get_slot_info, |
| .pci_probe_complete = check_all_slot_table, |
| .cec_power_down = astbmc_ipmi_power_down, |
| .cec_reboot = astbmc_ipmi_reboot, |
| .elog_commit = ipmi_elog_commit, |
| .exit = ipmi_wdt_final_reset, |
| .terminate = ipmi_terminate, |
| .ocapi = &zaius_ocapi, |
| }; |