linux/arch/arm/mach-realtek/rtd1195.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Realtek RTD1195
   4 *
   5 * Copyright (c) 2017-2019 Andreas F\xC3\xA4rber
   6 */
   7
   8#include <linux/memblock.h>
   9#include <asm/mach/arch.h>
  10
  11static 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
  20static 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
  30static const char *const rtd1195_dt_compat[] __initconst = {
  31        "realtek,rtd1195",
  32        NULL
  33};
  34
  35DT_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,
  40MACHINE_END
  41