1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <amdblocks/iomap.h>
4 #include <amdblocks/memmap.h>
5 #include <amdblocks/root_complex.h>
6 #include <device/device.h>
7 #include <stdint.h>
8
9 /*
10 * +--------------------------------+
11 * | |
12 * | |
13 * | |
14 * | |
15 * | |
16 * | |
17 * | |
18 * reserved_dram_end +--------------------------------+
19 * | |
20 * | verstage (if reqd) |
21 * | (VERSTAGE_SIZE) |
22 * +--------------------------------+ VERSTAGE_ADDR
23 * | |
24 * | FSP-M |
25 * | (FSP_M_SIZE) |
26 * +--------------------------------+ FSP_M_ADDR
27 * | romstage |
28 * | (ROMSTAGE_SIZE) |
29 * +--------------------------------+ ROMSTAGE_ADDR = BOOTBLOCK_END
30 * | | X86_RESET_VECTOR = BOOTBLOCK_END - 0x10
31 * | bootblock |
32 * | (C_ENV_BOOTBLOCK_SIZE) |
33 * +--------------------------------+ BOOTBLOCK_ADDR = BOOTBLOCK_END - C_ENV_BOOTBLOCK_SIZE
34 * | Unused hole |
35 * | (86KiB) |
36 * +--------------------------------+
37 * | FMAP cache (FMAP_SIZE) |
38 * +--------------------------------+ PSP_SHAREDMEM_BASE + PSP_SHAREDMEM_SIZE + PRERAM_CBMEM_CONSOLE_SIZE + 0x200
39 * | Early Timestamp region (512B) |
40 * +--------------------------------+ PSP_SHAREDMEM_BASE + PSP_SHAREDMEM_SIZE + PRERAM_CBMEM_CONSOLE_SIZE
41 * | Preram CBMEM console |
42 * | (PRERAM_CBMEM_CONSOLE_SIZE) |
43 * +--------------------------------+ PSP_SHAREDMEM_BASE + PSP_SHAREDMEM_SIZE
44 * | PSP shared (vboot workbuf) |
45 * | (PSP_SHAREDMEM_SIZE) |
46 * +--------------------------------+ PSP_SHAREDMEM_BASE
47 * | APOB (64KiB) |
48 * +--------------------------------+ PSP_APOB_DRAM_ADDRESS
49 * | Early BSP stack |
50 * | (EARLYRAM_BSP_STACK_SIZE) |
51 * reserved_dram_start +--------------------------------+ EARLY_RESERVED_DRAM_BASE
52 * | DRAM |
53 * +--------------------------------+ 0x100000
54 * | Option ROM |
55 * +--------------------------------+ 0xc0000
56 * | Legacy VGA |
57 * +--------------------------------+ 0xa0000
58 * | DRAM |
59 * +--------------------------------+ 0x0
60 */
read_soc_memmap_resources(struct device * dev,unsigned long * idx)61 void read_soc_memmap_resources(struct device *dev, unsigned long *idx)
62 {
63 read_lower_soc_memmap_resources(dev, idx);
64
65 /* Reserve fixed IOMMU MMIO region */
66 mmio_range(dev, (*idx)++, IOMMU_RESERVED_MMIO_BASE, IOMMU_RESERVED_MMIO_SIZE);
67
68 read_fsp_resources(dev, idx);
69 }
70