[U-Boot] [PATCH v3 11/14] MIPS: Malta: Enable CM & L2 support

Paul Burton paul.burton at imgtec.com
Wed Sep 21 12:18:56 CEST 2016


Enable support for the MIPS Coherence Manager & L2 caches on the MIPS
Malta board, removing the need for us to attempt to bypass the L2 during
boot (which would fail with recent CPUs that expose L2 config via the CM
anyway).

Signed-off-by: Paul Burton <paul.burton at imgtec.com>

---

Changes in v3: None
Changes in v2: None

 arch/mips/Kconfig                  | 2 ++
 board/imgtec/malta/lowlevel_init.S | 6 ------
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ff86ad2..161427c 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -26,6 +26,8 @@ config TARGET_MALTA
 	select DM
 	select DM_SERIAL
 	select DYNAMIC_IO_PORT_BASE
+	select MIPS_CM
+	select MIPS_L2_CACHE
 	select OF_CONTROL
 	select OF_ISA_BUS
 	select SUPPORTS_BIG_ENDIAN
diff --git a/board/imgtec/malta/lowlevel_init.S b/board/imgtec/malta/lowlevel_init.S
index 3d48cdc..6df4d9f 100644
--- a/board/imgtec/malta/lowlevel_init.S
+++ b/board/imgtec/malta/lowlevel_init.S
@@ -28,12 +28,6 @@
 
 	.globl	lowlevel_init
 lowlevel_init:
-	/* disable any L2 cache for now */
-	sync
-	mfc0	t0, CP0_CONFIG, 2
-	ori	t0, t0, 0x1 << 12
-	mtc0	t0, CP0_CONFIG, 2
-
 	/* detect the core card */
 	PTR_LI	t0, CKSEG1ADDR(MALTA_REVISION)
 	lw	t0, 0(t0)
-- 
2.10.0



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