^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Realtek RTD1195
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 2017-2019 Andreas Färber
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/memblock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <asm/mach/arch.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) static void __init rtd1195_memblock_remove(phys_addr_t base, phys_addr_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) ret = memblock_remove(base, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) pr_err("Failed to remove memblock %pa (%d)\n", &base, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static void __init rtd1195_reserve(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) /* Exclude boot ROM from RAM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) rtd1195_memblock_remove(0x00000000, 0x0000a800);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /* Exclude peripheral register spaces from RAM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) rtd1195_memblock_remove(0x18000000, 0x00070000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) rtd1195_memblock_remove(0x18100000, 0x01000000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static const char *const rtd1195_dt_compat[] __initconst = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) "realtek,rtd1195",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) DT_MACHINE_START(rtd1195, "Realtek RTD1195")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) .dt_compat = rtd1195_dt_compat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) .reserve = rtd1195_reserve,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) .l2c_aux_val = 0x0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) .l2c_aux_mask = ~0x0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) MACHINE_END