1 // SPDX-License-Identifier: Intel
2 /*
3 * Copyright (C) 2015-2016 Intel Corp.
4 * (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.)
5 * (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for Intel Corp.)
6 * Mostly taken from coreboot fsp2_0/memory_init.c
7 */
8
9 #include <common.h>
10 #include <binman.h>
11 #include <bootstage.h>
12 #include <log.h>
13 #include <asm/mrccache.h>
14 #include <asm/fsp/fsp_infoheader.h>
15 #include <asm/fsp2/fsp_api.h>
16 #include <asm/fsp2/fsp_internal.h>
17 #include <asm/arch/fsp/fsp_configs.h>
18 #include <asm/arch/fsp/fsp_m_upd.h>
19
prepare_mrc_cache_type(enum mrc_type_t type,struct mrc_data_container ** cachep)20 static int prepare_mrc_cache_type(enum mrc_type_t type,
21 struct mrc_data_container **cachep)
22 {
23 struct mrc_data_container *cache;
24 struct mrc_region entry;
25 int ret;
26
27 ret = mrccache_get_region(type, NULL, &entry);
28 if (ret)
29 return ret;
30 cache = mrccache_find_current(&entry);
31 if (!cache)
32 return -ENOENT;
33
34 log_debug("MRC at %x, size %x\n", (uint)cache->data, cache->data_size);
35 *cachep = cache;
36
37 return 0;
38 }
39
prepare_mrc_cache(struct fspm_upd * upd)40 int prepare_mrc_cache(struct fspm_upd *upd)
41 {
42 struct mrc_data_container *cache;
43 int ret;
44
45 ret = prepare_mrc_cache_type(MRC_TYPE_NORMAL, &cache);
46 if (ret)
47 return log_msg_ret("Cannot get normal cache", ret);
48 upd->arch.nvs_buffer_ptr = cache->data;
49
50 ret = prepare_mrc_cache_type(MRC_TYPE_VAR, &cache);
51 if (ret)
52 return log_msg_ret("Cannot get var cache", ret);
53 upd->config.variable_nvs_buffer_ptr = cache->data;
54
55 return 0;
56 }
57
fsp_memory_init(bool s3wake,bool use_spi_flash)58 int fsp_memory_init(bool s3wake, bool use_spi_flash)
59 {
60 struct fspm_upd upd, *fsp_upd;
61 fsp_memory_init_func func;
62 struct binman_entry entry;
63 struct fsp_header *hdr;
64 struct hob_header *hob;
65 struct udevice *dev;
66 int ret;
67
68 ret = fsp_locate_fsp(FSP_M, &entry, use_spi_flash, &dev, &hdr, NULL);
69 if (ret)
70 return log_msg_ret("locate FSP", ret);
71 debug("Found FSP_M at %x, size %x\n", hdr->img_base, hdr->img_size);
72
73 /* Copy over the default config */
74 fsp_upd = (struct fspm_upd *)(hdr->img_base + hdr->cfg_region_off);
75 if (fsp_upd->header.signature != FSPM_UPD_SIGNATURE)
76 return log_msg_ret("Bad UPD signature", -EPERM);
77 memcpy(&upd, fsp_upd, sizeof(upd));
78
79 ret = fspm_update_config(dev, &upd);
80 if (ret)
81 return log_msg_ret("Could not setup config", ret);
82
83 debug("SDRAM init...");
84 bootstage_start(BOOTSTAGE_ID_ACCUM_FSP_M, "fsp-m");
85 func = (fsp_memory_init_func)(hdr->img_base + hdr->fsp_mem_init);
86 ret = func(&upd, &hob);
87 bootstage_accum(BOOTSTAGE_ID_ACCUM_FSP_M);
88 if (ret)
89 return log_msg_ret("SDRAM init fail\n", ret);
90
91 gd->arch.hob_list = hob;
92 debug("done\n");
93
94 ret = fspm_done(dev);
95 if (ret)
96 return log_msg_ret("fsm_done\n", ret);
97
98 return 0;
99 }
100