From f2c17aabc917e1092eedb16fa2b8891e9379f7e6 Mon Sep 17 00:00:00 2001
From: Anup Patel <anup.patel@wdc.com>
Date: Mon, 7 Jan 2019 20:57:01 +0530
Subject: RISC-V: Implement compile-time fixed mappings

This patch implements compile-time virtual to physical mappings. These
compile-time fixed mappings can be used by earlycon, ACPI, and early
ioremap for creating fixed mappings when FIX_EARLYCON_MEM=y.

To start with, we have enabled compile-time fixed mappings for earlycon.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
---
 arch/riscv/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch/riscv/Kconfig')

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index b60f4e3e36f4..ceed055179c8 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -89,6 +89,9 @@ config GENERIC_CSUM
 config GENERIC_HWEIGHT
 	def_bool y
 
+config FIX_EARLYCON_MEM
+	def_bool y
+
 config PGTABLE_LEVELS
 	int
 	default 3 if 64BIT
-- 
cgit