src/soc/mediatek/mt8196/soc.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/device.h>
   4 #include <device/pci.h>
   5 #include <soc/emi.h>
   6 #include <soc/mmu_operations.h>
   7 #include <soc/pcie.h>
   8 #include <symbols.h>
   9
  10 static void soc_read_resources(struct device *dev)
  11 {
  12         ram_range(dev, 0, (uintptr_t)_dram, sdram_size());
  13 }
  14
  15 static void soc_init(struct device *dev)
  16 {
  17         mtk_mmu_disable_l2c_sram();
  18 }
  19
  20 static struct device_operations soc_ops = {
  21         .read_resources = soc_read_resources,
  22         .set_resources = noop_set_resources,
  23         .init = soc_init,
  24 };
  25
  26 static struct device_operations pci_domain_ops = {
  27         .read_resources = &mtk_pcie_domain_read_resources,
  28         .set_resources = &mtk_pcie_domain_set_resources,
  29         .scan_bus = &pci_host_bridge_scan_bus,
  30         .enable = &mtk_pcie_domain_enable,
  31 };
  32
  33 static void enable_soc_dev(struct device *dev)
  34 {
  35         if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
  36                 dev->ops = &soc_ops;
  37         } else if (dev->path.type == DEVICE_PATH_DOMAIN) {
  38                 if (mainboard_needs_pcie_init())
  39                         dev->ops = &pci_domain_ops;
  40                 else
  41                         printk(BIOS_DEBUG, "Skip setting PCIe ops\n");
  42         }
  43 }
  44
  45 struct chip_operations soc_mediatek_mt8196_ops = {
  46         .name = "SOC Mediatek MT8196",
  47         .enable_dev = enable_soc_dev,
  48 };