X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=arch%2Farm%2Fmach-kirkwood%2Fboard-dt.c;h=ab2e586e04c7bbf880310304be99d26f4dbaf77f;hb=3a7f8b4eeeb3c4ce1707a921416f9e2b10573c95;hp=82d3ad8e87cf91395c0c706b48ef7df684e1e644;hpb=eacbc77f4af01115d6cbe9fa3ea43be1647ba075;p=karo-tx-linux.git

diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index 82d3ad8e87cf..ab2e586e04c7 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -10,73 +10,98 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <linux/clk.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/io.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_net.h>
 #include <linux/of_platform.h>
 #include <linux/clk-provider.h>
-#include <linux/clocksource.h>
-#include <linux/dma-mapping.h>
-#include <linux/irqchip.h>
-#include <linux/kexec.h>
+#include <linux/slab.h>
 #include <asm/mach/arch.h>
-#include <asm/mach/map.h>
 #include <mach/bridge-regs.h>
-#include <linux/platform_data/usb-ehci-orion.h>
-#include <plat/irq.h>
 #include <plat/common.h>
 #include "common.h"
 
-/*
- * There are still devices that doesn't know about DT yet.  Get clock
- * gates here and add a clock lookup alias, so that old platform
- * devices still work.
-*/
+#define MV643XX_ETH_MAC_ADDR_LOW	0x0414
+#define MV643XX_ETH_MAC_ADDR_HIGH	0x0418
 
-static void __init kirkwood_legacy_clk_init(void)
+static void __init kirkwood_dt_eth_fixup(void)
 {
-
-	struct device_node *np = of_find_compatible_node(
-		NULL, NULL, "marvell,kirkwood-gating-clock");
-	struct of_phandle_args clkspec;
-	struct clk *clk;
-
-	clkspec.np = np;
-	clkspec.args_count = 1;
-
-	clkspec.args[0] = CGC_BIT_PEX0;
-	orion_clkdev_add("0", "pcie",
-			 of_clk_get_from_provider(&clkspec));
-
-	clkspec.args[0] = CGC_BIT_PEX1;
-	orion_clkdev_add("1", "pcie",
-			 of_clk_get_from_provider(&clkspec));
+	struct device_node *np;
 
 	/*
-	 * The ethernet interfaces forget the MAC address assigned by
-	 * u-boot if the clocks are turned off. Until proper DT support
-	 * is available we always enable them for now.
+	 * The ethernet interfaces forget the MAC address assigned by u-boot
+	 * if the clocks are turned off. Usually, u-boot on kirkwood boards
+	 * has no DT support to properly set local-mac-address property.
+	 * As a workaround, we get the MAC address from mv643xx_eth registers
+	 * and update the port device node if no valid MAC address is set.
 	 */
-	clkspec.args[0] = CGC_BIT_GE0;
-	clk = of_clk_get_from_provider(&clkspec);
-	clk_prepare_enable(clk);
-
-	clkspec.args[0] = CGC_BIT_GE1;
-	clk = of_clk_get_from_provider(&clkspec);
-	clk_prepare_enable(clk);
-}
-
-static void __init kirkwood_dt_time_init(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
-static void __init kirkwood_dt_init_early(void)
-{
-	mvebu_mbus_init("marvell,kirkwood-mbus",
-			BRIDGE_WINS_BASE, BRIDGE_WINS_SZ,
-			DDR_WINDOW_CPU_BASE, DDR_WINDOW_CPU_SZ);
+	for_each_compatible_node(np, NULL, "marvell,kirkwood-eth-port") {
+		struct device_node *pnp = of_get_parent(np);
+		struct clk *clk;
+		struct property *pmac;
+		void __iomem *io;
+		u8 *macaddr;
+		u32 reg;
+
+		if (!pnp)
+			continue;
+
+		/* skip disabled nodes or nodes with valid MAC address*/
+		if (!of_device_is_available(pnp) || of_get_mac_address(np))
+			goto eth_fixup_skip;
+
+		clk = of_clk_get(pnp, 0);
+		if (IS_ERR(clk))
+			goto eth_fixup_skip;
+
+		io = of_iomap(pnp, 0);
+		if (!io)
+			goto eth_fixup_no_map;
+
+		/* ensure port clock is not gated to not hang CPU */
+		clk_prepare_enable(clk);
+
+		/* store MAC address register contents in local-mac-address */
+		pr_err(FW_INFO "%s: local-mac-address is not set\n",
+		       np->full_name);
+
+		pmac = kzalloc(sizeof(*pmac) + 6, GFP_KERNEL);
+		if (!pmac)
+			goto eth_fixup_no_mem;
+
+		pmac->value = pmac + 1;
+		pmac->length = 6;
+		pmac->name = kstrdup("local-mac-address", GFP_KERNEL);
+		if (!pmac->name) {
+			kfree(pmac);
+			goto eth_fixup_no_mem;
+		}
+
+		macaddr = pmac->value;
+		reg = readl(io + MV643XX_ETH_MAC_ADDR_HIGH);
+		macaddr[0] = (reg >> 24) & 0xff;
+		macaddr[1] = (reg >> 16) & 0xff;
+		macaddr[2] = (reg >> 8) & 0xff;
+		macaddr[3] = reg & 0xff;
+
+		reg = readl(io + MV643XX_ETH_MAC_ADDR_LOW);
+		macaddr[4] = (reg >> 8) & 0xff;
+		macaddr[5] = reg & 0xff;
+
+		of_update_property(np, pmac);
+
+eth_fixup_no_mem:
+		iounmap(io);
+		clk_disable_unprepare(clk);
+eth_fixup_no_map:
+		clk_put(clk);
+eth_fixup_skip:
+		of_node_put(pnp);
+	}
 }
 
 static void __init kirkwood_dt_init(void)
@@ -92,17 +117,15 @@ static void __init kirkwood_dt_init(void)
 	writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
 
 	BUG_ON(mvebu_mbus_dt_init());
-	kirkwood_setup_wins();
 
 	kirkwood_l2_init();
 
 	kirkwood_cpufreq_init();
-
-	/* Setup clocks for legacy devices */
-	kirkwood_legacy_clk_init();
-
 	kirkwood_cpuidle_init();
 
+	kirkwood_pm_init();
+	kirkwood_dt_eth_fixup();
+
 #ifdef CONFIG_KEXEC
 	kexec_reinit = kirkwood_enable_pcie;
 #endif
@@ -121,8 +144,6 @@ static const char * const kirkwood_dt_board_compat[] = {
 DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)")
 	/* Maintainer: Jason Cooper <jason@lakedaemon.net> */
 	.map_io		= kirkwood_map_io,
-	.init_early	= kirkwood_dt_init_early,
-	.init_time	= kirkwood_dt_time_init,
 	.init_machine	= kirkwood_dt_init,
 	.restart	= kirkwood_restart,
 	.dt_compat	= kirkwood_dt_board_compat,