1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2007 Semihalf
4 *
5 * Written by: Rafal Jaworowski <raj@semihalf.com>
6 *
7 * This file contains routines that fetch data from PowerPC-dependent sources
8 * (bd_info etc.)
9 */
10
11 #include <config.h>
12 #include <linux/types.h>
13 #include <api_public.h>
14
15 #include <asm/u-boot.h>
16 #include <asm/global_data.h>
17
18 #include "api_private.h"
19
20 DECLARE_GLOBAL_DATA_PTR;
21
22 /*
23 * Important notice: handling of individual fields MUST be kept in sync with
24 * include/asm-ppc/u-boot.h and include/asm-ppc/global_data.h, so any changes
25 * need to reflect their current state and layout of structures involved!
26 */
platform_sys_info(struct sys_info * si)27 int platform_sys_info(struct sys_info *si)
28 {
29 si->clk_bus = gd->bus_clk;
30 si->clk_cpu = gd->cpu_clk;
31
32 #if defined(CONFIG_MPC8xx) || defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
33 #define bi_bar bi_immr_base
34 #elif defined(CONFIG_MPC83xx)
35 #define bi_bar bi_immrbar
36 #endif
37
38 #if defined(bi_bar)
39 si->bar = gd->bd->bi_bar;
40 #undef bi_bar
41 #else
42 si->bar = 0;
43 #endif
44
45 platform_set_mr(si, gd->ram_base, gd->ram_size, MR_ATTR_DRAM);
46 platform_set_mr(si, gd->bd->bi_flashstart, gd->bd->bi_flashsize, MR_ATTR_FLASH);
47 platform_set_mr(si, gd->bd->bi_sramstart, gd->bd->bi_sramsize, MR_ATTR_SRAM);
48
49 return 1;
50 }
51