1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Realtek RTD1195
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (c) 2017-2019 Andreas Färber
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <linux/memblock.h>
9*4882a593Smuzhiyun #include <asm/mach/arch.h>
10*4882a593Smuzhiyun
rtd1195_memblock_remove(phys_addr_t base,phys_addr_t size)11*4882a593Smuzhiyun static void __init rtd1195_memblock_remove(phys_addr_t base, phys_addr_t size)
12*4882a593Smuzhiyun {
13*4882a593Smuzhiyun int ret;
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun ret = memblock_remove(base, size);
16*4882a593Smuzhiyun if (ret)
17*4882a593Smuzhiyun pr_err("Failed to remove memblock %pa (%d)\n", &base, ret);
18*4882a593Smuzhiyun }
19*4882a593Smuzhiyun
rtd1195_reserve(void)20*4882a593Smuzhiyun static void __init rtd1195_reserve(void)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun /* Exclude boot ROM from RAM */
23*4882a593Smuzhiyun rtd1195_memblock_remove(0x00000000, 0x0000a800);
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun /* Exclude peripheral register spaces from RAM */
26*4882a593Smuzhiyun rtd1195_memblock_remove(0x18000000, 0x00070000);
27*4882a593Smuzhiyun rtd1195_memblock_remove(0x18100000, 0x01000000);
28*4882a593Smuzhiyun }
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun static const char *const rtd1195_dt_compat[] __initconst = {
31*4882a593Smuzhiyun "realtek,rtd1195",
32*4882a593Smuzhiyun NULL
33*4882a593Smuzhiyun };
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun DT_MACHINE_START(rtd1195, "Realtek RTD1195")
36*4882a593Smuzhiyun .dt_compat = rtd1195_dt_compat,
37*4882a593Smuzhiyun .reserve = rtd1195_reserve,
38*4882a593Smuzhiyun .l2c_aux_val = 0x0,
39*4882a593Smuzhiyun .l2c_aux_mask = ~0x0,
40*4882a593Smuzhiyun MACHINE_END
41