src/soc/mediatek/mt8173/soc.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootmem.h>
   4 #include <device/device.h>
   5 #include <program_loading.h>
   6 #include <symbols.h>
   7 #include <soc/emi.h>
   8
   9 int payload_arch_usable_ram_quirk(uint64_t start, uint64_t size)
  10 {
  11         if (size > REGION_SIZE(sram))
  12                 return 0;
  13
  14         if (start >= (uintptr_t)_sram && (start + size) <= (uintptr_t)_esram) {
  15                 printk(BIOS_DEBUG, "MT8173 uses SRAM for loading BL31.\n");
  16                 return 1;
  17         }
  18
  19         return 0;
  20 }
  21
  22 void bootmem_platform_add_ranges(void)
  23 {
  24         bootmem_add_range(0x101000, 124 * KiB, BM_MEM_BL31);
  25 }
  26
  27 static void soc_read_resources(struct device *dev)
  28 {
  29         ram_range(dev, 0, (uintptr_t)_dram, sdram_size());
  30 }
  31
  32 static void soc_init(struct device *dev)
  33 {
  34 }
  35
  36 static struct device_operations soc_ops = {
  37         .read_resources = soc_read_resources,
  38         .set_resources = noop_set_resources,
  39         .init = soc_init,
  40 };
  41
  42 static void enable_soc_dev(struct device *dev)
  43 {
  44         dev->ops = &soc_ops;
  45 }
  46
  47 struct chip_operations soc_mediatek_mt8173_ops = {
  48         .name = "SOC Mediatek MT8173",
  49         .enable_dev = enable_soc_dev,
  50 };