linux-kernel - [PATCH v2 2/5] ARM: dove: add DT parsing for legacy mv643xx

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Date:	Fri,  3 May 2013 01:48:36 +0200
From:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Rob Landley <rob@...dley.net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Russell King <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	Jean-Francois Moine <moinejf@...e.fr>,
	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/5] ARM: dove: add DT parsing for legacy mv643xx_eth

To allow to move to orion irqchip driver, existing legacy devices
have to map their irqs. This patch adds init code to map the
corresponding irqs. It will vanish as soon as there is true device tree
support for mv643xx_eth.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
---
Changelog:
v1->v2:
- split off DT changes (Suggested by Jason Cooper)

Cc: Grant Likely <grant.likely@...aro.org>
Cc: Rob Herring <rob.herring@...xeda.com>
Cc: Rob Landley <rob@...dley.net>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Russell King <linux@....linux.org.uk>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Jason Cooper <jason@...edaemon.net>
Cc: Andrew Lunn <andrew@...n.ch>
Cc: Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Cc: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc: Gregory Clement <gregory.clement@...e-electrons.com>
Cc: Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
Cc: Jean-Francois Moine <moinejf@...e.fr>
Cc: devicetree-discuss@...ts.ozlabs.org
Cc: linux-doc@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
---
 arch/arm/mach-dove/board-dt.c |   31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-dove/board-dt.c b/arch/arm/mach-dove/board-dt.c
index fbde1dd..9df6dd7 100644
--- a/arch/arm/mach-dove/board-dt.c
+++ b/arch/arm/mach-dove/board-dt.c
@@ -12,6 +12,7 @@
 #include <linux/clk-provider.h>
 #include <linux/clk/mvebu.h>
 #include <linux/of.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/platform_data/usb-ehci-orion.h>
 #include <asm/hardware/cache-tauros2.h>
@@ -57,6 +58,34 @@ static struct mv643xx_eth_platform_data dove_dt_ge00_data = {
 	.phy_addr = MV643XX_ETH_PHY_ADDR_DEFAULT,
 };
 
+#define DOVE_GE00_PHYS_BASE	0xf1070000
+
+static void __init dove_legacy_ge00_init(void)
+{
+	struct device_node *np = of_find_compatible_node(NULL, NULL,
+					 "marvell,mv643xx-eth-block");
+	int irq_sum, irq_err;
+
+	if (!np)
+		return;
+
+	irq_sum = irq_of_parse_and_map(np, 0);
+	if (!irq_sum) {
+		pr_err("%s: missing sum irq\n", np->full_name);
+		return;
+	}
+
+	irq_err = irq_of_parse_and_map(np, 1);
+	if (!irq_err) {
+		pr_err("%s: missing err irq\n", np->full_name);
+		return;
+	}
+
+	/* legacy ge00_init wants phys base */
+	orion_ge00_init(&dove_dt_ge00_data, DOVE_GE00_PHYS_BASE,
+			irq_sum, irq_err, 1600);
+}
+
 static void __init dove_dt_init(void)
 {
 	pr_info("Dove 88AP510 SoC\n");
@@ -70,7 +99,7 @@ static void __init dove_dt_init(void)
 	dove_of_clk_init();
 
 	/* Internal devices not ported to DT yet */
-	dove_ge00_init(&dove_dt_ge00_data);
+	dove_legacy_ge00_init();
 	dove_pcie_init(1, 1);
 
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-- 
1.7.10.4

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