1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Realtek RTD1195
4  *
5  * Copyright (c) 2017-2019 Andreas Färber
6  */
7 
8 #include <linux/memblock.h>
9 #include <asm/mach/arch.h>
10 
rtd1195_memblock_remove(phys_addr_t base,phys_addr_t size)11 static void __init rtd1195_memblock_remove(phys_addr_t base, phys_addr_t size)
12 {
13 	int ret;
14 
15 	ret = memblock_remove(base, size);
16 	if (ret)
17 		pr_err("Failed to remove memblock %pa (%d)\n", &base, ret);
18 }
19 
rtd1195_reserve(void)20 static void __init rtd1195_reserve(void)
21 {
22 	/* Exclude boot ROM from RAM */
23 	rtd1195_memblock_remove(0x00000000, 0x0000a800);
24 
25 	/* Exclude peripheral register spaces from RAM */
26 	rtd1195_memblock_remove(0x18000000, 0x00070000);
27 	rtd1195_memblock_remove(0x18100000, 0x01000000);
28 }
29 
30 static const char *const rtd1195_dt_compat[] __initconst = {
31 	"realtek,rtd1195",
32 	NULL
33 };
34 
35 DT_MACHINE_START(rtd1195, "Realtek RTD1195")
36 	.dt_compat = rtd1195_dt_compat,
37 	.reserve = rtd1195_reserve,
38 	.l2c_aux_val = 0x0,
39 	.l2c_aux_mask = ~0x0,
40 MACHINE_END
41