summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-realtek/rtd1195.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-realtek/rtd1195.c')
-rw-r--r--arch/arm/mach-realtek/rtd1195.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/mach-realtek/rtd1195.c b/arch/arm/mach-realtek/rtd1195.c
new file mode 100644
index 000000000..0381a4447
--- /dev/null
+++ b/arch/arm/mach-realtek/rtd1195.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Realtek RTD1195
+ *
+ * Copyright (c) 2017-2019 Andreas Färber
+ */
+
+#include <linux/memblock.h>
+#include <asm/mach/arch.h>
+
+static void __init rtd1195_memblock_remove(phys_addr_t base, phys_addr_t size)
+{
+ int ret;
+
+ ret = memblock_remove(base, size);
+ if (ret)
+ pr_err("Failed to remove memblock %pa (%d)\n", &base, ret);
+}
+
+static void __init rtd1195_reserve(void)
+{
+ /* Exclude boot ROM from RAM */
+ rtd1195_memblock_remove(0x00000000, 0x0000a800);
+
+ /* Exclude peripheral register spaces from RAM */
+ rtd1195_memblock_remove(0x18000000, 0x00070000);
+ rtd1195_memblock_remove(0x18100000, 0x01000000);
+}
+
+static const char *const rtd1195_dt_compat[] __initconst = {
+ "realtek,rtd1195",
+ NULL
+};
+
+DT_MACHINE_START(rtd1195, "Realtek RTD1195")
+ .dt_compat = rtd1195_dt_compat,
+ .reserve = rtd1195_reserve,
+ .l2c_aux_val = 0x0,
+ .l2c_aux_mask = ~0x0,
+MACHINE_END