1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Bubblegum-96 Boards Support
4  *
5  * Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
6  */
7 
8 #include <linux/arm-smccc.h>
9 #include <linux/psci.h>
10 #include <common.h>
11 #include <asm/io.h>
12 #include <asm/mach-types.h>
13 #include <asm/psci.h>
14 
15 DECLARE_GLOBAL_DATA_PTR;
16 
17 /*
18  * dram_init - sets uboots idea of sdram size
19  */
20 int dram_init(void)
21 {
22 	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
23 	return 0;
24 }
25 
26 /* This is called after dram_init() so use get_ram_size result */
27 int dram_init_banksize(void)
28 {
29 	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
30 	gd->bd->bi_dram[0].size = gd->ram_size;
31 
32 	return 0;
33 }
34 
35 static void show_psci_version(void)
36 {
37 	struct arm_smccc_res res;
38 
39 	arm_smccc_smc(ARM_PSCI_0_2_FN_PSCI_VERSION, 0, 0, 0, 0, 0, 0, 0, &res);
40 
41 	printf("PSCI:  v%ld.%ld\n",
42 	       PSCI_VERSION_MAJOR(res.a0),
43 		PSCI_VERSION_MINOR(res.a0));
44 }
45 
46 int board_init(void)
47 {
48 	show_psci_version();
49 
50 	return 0;
51 }
52 
53 void reset_cpu(ulong addr)
54 {
55 	psci_system_reset();
56 }
57