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 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 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