10 files changed, 77 insertions, 27 deletions

diff --git a/arch/mips/lantiq/dts/easy50712.dts b/arch/mips/lantiq/dts/easy50712.dts
index fac1f5b178e..143b8a37b5e 100644
--- a/arch/mips/lantiq/dts/easy50712.dts
+++ b/arch/mips/lantiq/dts/easy50712.dts
@@ -8,6 +8,7 @@
 	};
 
 	memory@0 {
+		device_type = "memory";
 		reg = <0x0 0x2000000>;
 	};
 
diff --git a/arch/mips/lantiq/falcon/sysctrl.c b/arch/mips/lantiq/falcon/sysctrl.c
index ff4894a833e..8f1866d8124 100644
--- a/arch/mips/lantiq/falcon/sysctrl.c
+++ b/arch/mips/lantiq/falcon/sysctrl.c
@@ -48,6 +48,7 @@
 #define CPU0CC_CPUDIV		0x0001
 
 /* Activation Status Register */
+#define ACTS_ASC0_ACT	0x00001000
 #define ACTS_ASC1_ACT	0x00000800
 #define ACTS_I2C_ACT	0x00004000
 #define ACTS_P0		0x00010000
@@ -108,6 +109,7 @@ static void sysctl_deactivate(struct clk *clk)
 static int sysctl_clken(struct clk *clk)
 {
 	sysctl_w32(clk->module, clk->bits, SYSCTL_CLKEN);
+	sysctl_w32(clk->module, clk->bits, SYSCTL_ACT);
 	sysctl_wait(clk, clk->bits, SYSCTL_CLKS);
 	return 0;
 }
@@ -256,6 +258,7 @@ void __init ltq_soc_init(void)
 	clkdev_add_sys("1e800400.pad", SYSCTL_SYS1, ACTS_PADCTRL1);
 	clkdev_add_sys("1e800500.pad", SYSCTL_SYS1, ACTS_PADCTRL3);
 	clkdev_add_sys("1e800600.pad", SYSCTL_SYS1, ACTS_PADCTRL4);
-	clkdev_add_sys("1e100C00.serial", SYSCTL_SYS1, ACTS_ASC1_ACT);
+	clkdev_add_sys("1e100b00.serial", SYSCTL_SYS1, ACTS_ASC1_ACT);
+	clkdev_add_sys("1e100c00.serial", SYSCTL_SYS1, ACTS_ASC0_ACT);
 	clkdev_add_sys("1e200000.i2c", SYSCTL_SYS1, ACTS_I2C_ACT);
 }
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index 51194875f15..030568a70ac 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -61,7 +61,7 @@
 /* we have a cascade of 8 irqs */
 #define MIPS_CPU_IRQ_CASCADE		8
 
-#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC)
+#ifdef CONFIG_MIPS_MT_SMP
 int gic_present;
 #endif
 
@@ -390,7 +390,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
 		ret = of_irq_to_resource_table(eiu_node,
 						ltq_eiu_irq, exin_avail);
 		if (ret != exin_avail)
-			panic("failed to load external irq resources\n");
+			panic("failed to load external irq resources");
 
 		if (request_mem_region(res.start, resource_size(&res),
 							res.name) < 0)
@@ -440,7 +440,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
 	arch_init_ipiirq(MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ, &irq_call);
 #endif
 
-#if !defined(CONFIG_MIPS_MT_SMP) && !defined(CONFIG_MIPS_MT_SMTC)
+#ifndef CONFIG_MIPS_MT_SMP
 	set_c0_status(IE_IRQ0 | IE_IRQ1 | IE_IRQ2 |
 		IE_IRQ3 | IE_IRQ4 | IE_IRQ5);
 #else
@@ -461,7 +461,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
 	return 0;
 }
 
-unsigned int __cpuinit get_c0_compare_int(void)
+unsigned int get_c0_compare_int(void)
 {
 	return MIPS_CPU_TIMER_IRQ;
 }
diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index 49c46037028..7447d322d14 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -14,6 +14,7 @@
 
 #include <asm/bootinfo.h>
 #include <asm/time.h>
+#include <asm/prom.h>
 
 #include <lantiq.h>
 
@@ -70,23 +71,12 @@ void __init plat_mem_setup(void)
 	 * Load the builtin devicetree. This causes the chosen node to be
 	 * parsed resulting in our memory appearing
 	 */
-	__dt_setup_arch(&__dtb_start);
+	__dt_setup_arch(__dtb_start);
 }
 
 void __init device_tree_init(void)
 {
-	unsigned long base, size;
-
-	if (!initial_boot_params)
-		return;
-
-	base = virt_to_phys((void *)initial_boot_params);
-	size = be32_to_cpu(initial_boot_params->totalsize);
-
-	/* Before we do anything, lets reserve the dt blob */
-	reserve_bootmem(base, size, BOOTMEM_DEFAULT);
-
-	unflatten_device_tree();
+	unflatten_and_copy_device_tree();
 }
 
 void __init prom_init(void)
diff --git a/arch/mips/lantiq/prom.h b/arch/mips/lantiq/prom.h
index 8e07b5f28ef..bfd2d58c1d6 100644
--- a/arch/mips/lantiq/prom.h
+++ b/arch/mips/lantiq/prom.h
@@ -26,6 +26,4 @@ struct ltq_soc_info {
 extern void ltq_soc_detect(struct ltq_soc_info *i);
 extern void ltq_soc_init(void);
 
-extern struct boot_param_header __dtb_start;
-
 #endif
diff --git a/arch/mips/lantiq/xway/Makefile b/arch/mips/lantiq/xway/Makefile
index 7a13660d630..087497d9735 100644
--- a/arch/mips/lantiq/xway/Makefile
+++ b/arch/mips/lantiq/xway/Makefile
@@ -1,3 +1,3 @@
-obj-y := prom.o sysctrl.o clk.o reset.o dma.o gptu.o
+obj-y := prom.o sysctrl.o clk.o reset.o dma.o gptu.o dcdc.o
 
 obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
diff --git a/arch/mips/lantiq/xway/clk.c b/arch/mips/lantiq/xway/clk.c
index 1ab576dc9bd..8750dc0a1bf 100644
--- a/arch/mips/lantiq/xway/clk.c
+++ b/arch/mips/lantiq/xway/clk.c
@@ -8,7 +8,6 @@
 
 #include <linux/io.h>
 #include <linux/export.h>
-#include <linux/init.h>
 #include <linux/clk.h>
 
 #include <asm/time.h>
diff --git a/arch/mips/lantiq/xway/dcdc.c b/arch/mips/lantiq/xway/dcdc.c
new file mode 100644
index 00000000000..7688ac0f06d
--- /dev/null
+++ b/arch/mips/lantiq/xway/dcdc.c
@@ -0,0 +1,63 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ *  Copyright (C) 2010 Sameer Ahmad, Lantiq GmbH
+ */
+
+#include <linux/ioport.h>
+#include <linux/of_platform.h>
+
+#include <lantiq_soc.h>
+
+/* Bias and regulator Setup Register */
+#define DCDC_BIAS_VREG0	0xa
+/* Bias and regulator Setup Register */
+#define DCDC_BIAS_VREG1	0xb
+
+#define dcdc_w8(x, y)	ltq_w8((x), dcdc_membase + (y))
+#define dcdc_r8(x)	ltq_r8(dcdc_membase + (x))
+
+static void __iomem *dcdc_membase;
+
+static int dcdc_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	dcdc_membase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(dcdc_membase))
+		return PTR_ERR(dcdc_membase);
+
+	dev_info(&pdev->dev, "Core Voltage : %d mV\n",
+		dcdc_r8(DCDC_BIAS_VREG1) * 8);
+
+	return 0;
+}
+
+static const struct of_device_id dcdc_match[] = {
+	{ .compatible = "lantiq,dcdc-xrx200" },
+	{},
+};
+
+static struct platform_driver dcdc_driver = {
+	.probe = dcdc_probe,
+	.driver = {
+		.name = "dcdc-xrx200",
+		.owner = THIS_MODULE,
+		.of_match_table = dcdc_match,
+	},
+};
+
+int __init dcdc_init(void)
+{
+	int ret = platform_driver_register(&dcdc_driver);
+
+	if (ret)
+		pr_info("dcdc: Error registering platform driver\n");
+	return ret;
+}
+
+arch_initcall(dcdc_init);
diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c
index 08f7ebd9c77..78a91fa4194 100644
--- a/arch/mips/lantiq/xway/dma.c
+++ b/arch/mips/lantiq/xway/dma.c
@@ -220,10 +220,6 @@ ltq_dma_init(struct platform_device *pdev)
 	int i;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		panic("Failed to get dma resource");
-
-	/* remap dma register range */
 	ltq_dma_membase = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(ltq_dma_membase))
 		panic("Failed to remap dma resource");
diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index c24924fe087..51804b10a03 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -128,7 +128,7 @@ static int pmu_enable(struct clk *clk)
 	do {} while (--retry && (pmu_r32(PWDSR(clk->module)) & clk->bits));
 
 	if (!retry)
-		panic("activating PMU module failed!\n");
+		panic("activating PMU module failed!");
 
 	return 0;
 }