From patchwork Tue Mar 26 16:52:16 2013
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Subject: [RFCv1,
 01/11] arm: mvebu: move L2 cache initialization in init_early()
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
X-Patchwork-Id: 231458
Message-Id: <1364316746-8702-2-git-send-email-thomas.petazzoni@free-electrons.com>
To: Bjorn Helgaas <bhelgaas@google.com>,
 Grant Likely <grant.likely@secretlab.ca>,
 Russell King <linux@arm.linux.org.uk>
Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
 devicetree-discuss@lists.ozlabs.org,
 Lior Amsalem <alior@marvell.com>, Andrew Lunn <andrew@lunn.ch>,
 Jason Cooper <jason@lakedaemon.net>, Arnd Bergmann <arnd@arndb.de>,
 Maen Suleiman <maen@marvell.com>,
 Thierry Reding <thierry.reding@avionic-design.de>,
 Gregory Clement <gregory.clement@free-electrons.com>,
 Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
 Olof Johansson <olof@lixom.net>, Tawfik Bayouk <tawfik@marvell.com>,
 Jason Gunthorpe <jgunthorpe@obsidianresearch.com>,
 Mitch Bradley <wmb@firmworks.com>, Andrew Murray <andrew.murray@arm.com>
Date: Tue, 26 Mar 2013 17:52:16 +0100

In preparation for moving the IRQ controller driver to
drivers/irqchip/, we don't want the IRQ controller driver to be
responsible for initializing the L2 cache. Instead, let's initialize
the L2 cache at the init_early() level, like mach-exynos/common.c is
doing.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

---
arch/arm/mach-mvebu/armada-370-xp.c     |    5 +++++
 arch/arm/mach-mvebu/irq-armada-370-xp.c |    4 ----
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-mvebu/armada-370-xp.c b/arch/arm/mach-mvebu/armada-370-xp.c
index 12d3655..d98a0ca 100644
--- a/arch/arm/mach-mvebu/armada-370-xp.c
+++ b/arch/arm/mach-mvebu/armada-370-xp.c
@@ -20,6 +20,7 @@
 #include <linux/clk/mvebu.h>
 #include <linux/dma-mapping.h>
 #include <linux/mbus.h>
+#include <asm/hardware/cache-l2x0.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/mach/time.h>
@@ -72,6 +73,10 @@ void __init armada_370_xp_init_early(void)
 			ARMADA_370_XP_MBUS_WINS_SIZE,
 			ARMADA_370_XP_SDRAM_WINS_BASE,
 			ARMADA_370_XP_SDRAM_WINS_SIZE);
+
+#ifdef CONFIG_CACHE_L2X0
+	l2x0_of_init(0, ~0UL);
+#endif
 }
 
 static void __init armada_370_xp_dt_init(void)
diff --git a/arch/arm/mach-mvebu/irq-armada-370-xp.c b/arch/arm/mach-mvebu/irq-armada-370-xp.c
index 6a9195e..f6699f3 100644
--- a/arch/arm/mach-mvebu/irq-armada-370-xp.c
+++ b/arch/arm/mach-mvebu/irq-armada-370-xp.c
@@ -25,7 +25,6 @@
 #include <asm/mach/arch.h>
 #include <asm/exception.h>
 #include <asm/smp_plat.h>
-#include <asm/hardware/cache-l2x0.h>
 
 /* Interrupt Controller Registers Map */
 #define ARMADA_370_XP_INT_SET_MASK_OFFS		(0x48)
@@ -292,7 +291,4 @@ static const struct of_device_id mpic_of_match[] __initconst = {
 void __init armada_370_xp_init_irq(void)
 {
 	of_irq_init(mpic_of_match);
-#ifdef CONFIG_CACHE_L2X0
-	l2x0_of_init(0, ~0UL);
-#endif
 }