arm/mach-realtek/rtd1195.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * Realtek RTD1195
0004  *
0005  * Copyright (c) 2017-2019 Andreas Färber
0006  */
0007
0008 #include <linux/memblock.h>
0009 #include <asm/mach/arch.h>
0010
0011 static void __init rtd1195_memblock_remove(phys_addr_t base, phys_addr_t size)
0012 {
0013     int ret;
0014
0015     ret = memblock_remove(base, size);
0016     if (ret)
0017         pr_err("Failed to remove memblock %pa (%d)\n", &base, ret);
0018 }
0019
0020 static void __init rtd1195_reserve(void)
0021 {
0022     /* Exclude boot ROM from RAM */
0023     rtd1195_memblock_remove(0x00000000, 0x0000a800);
0024
0025     /* Exclude peripheral register spaces from RAM */
0026     rtd1195_memblock_remove(0x18000000, 0x00070000);
0027     rtd1195_memblock_remove(0x18100000, 0x01000000);
0028 }
0029
0030 static const char *const rtd1195_dt_compat[] __initconst = {
0031     "realtek,rtd1195",
0032     NULL
0033 };
0034
0035 DT_MACHINE_START(rtd1195, "Realtek RTD1195")
0036     .dt_compat = rtd1195_dt_compat,
0037     .reserve = rtd1195_reserve,
0038     .l2c_aux_val = 0x0,
0039     .l2c_aux_mask = ~0x0,
0040 MACHINE_END