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Diffstat (limited to 'kernel/arch/arm/mach-imx/mach-imx6ul.c')
-rw-r--r--kernel/arch/arm/mach-imx/mach-imx6ul.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/mach-imx6ul.c b/kernel/arch/arm/mach-imx/mach-imx6ul.c
new file mode 100644
index 000000000..acaf7056e
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/mach-imx6ul.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * 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.
+ */
+#include <linux/irqchip.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
+#include <linux/micrel_phy.h>
+#include <linux/of_platform.h>
+#include <linux/phy.h>
+#include <linux/regmap.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "common.h"
+
+static void __init imx6ul_enet_clk_init(void)
+{
+ struct regmap *gpr;
+
+ gpr = syscon_regmap_lookup_by_compatible("fsl,imx6ul-iomuxc-gpr");
+ if (!IS_ERR(gpr))
+ regmap_update_bits(gpr, IOMUXC_GPR1, IMX6UL_GPR1_ENET_CLK_DIR,
+ IMX6UL_GPR1_ENET_CLK_OUTPUT);
+ else
+ pr_err("failed to find fsl,imx6ul-iomux-gpr regmap\n");
+
+}
+
+static int ksz8081_phy_fixup(struct phy_device *dev)
+{
+ if (dev && dev->interface == PHY_INTERFACE_MODE_MII) {
+ phy_write(dev, 0x1f, 0x8110);
+ phy_write(dev, 0x16, 0x201);
+ } else if (dev && dev->interface == PHY_INTERFACE_MODE_RMII) {
+ phy_write(dev, 0x1f, 0x8190);
+ phy_write(dev, 0x16, 0x202);
+ }
+
+ return 0;
+}
+
+static void __init imx6ul_enet_phy_init(void)
+{
+ if (IS_BUILTIN(CONFIG_PHYLIB))
+ phy_register_fixup_for_uid(PHY_ID_KSZ8081, 0xffffffff,
+ ksz8081_phy_fixup);
+}
+
+static inline void imx6ul_enet_init(void)
+{
+ imx6ul_enet_clk_init();
+ imx6ul_enet_phy_init();
+}
+
+static void __init imx6ul_init_machine(void)
+{
+ struct device *parent;
+
+ parent = imx_soc_device_init();
+ if (parent == NULL)
+ pr_warn("failed to initialize soc device\n");
+
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+ imx6ul_enet_init();
+ imx_anatop_init();
+ imx6ul_pm_init();
+}
+
+static void __init imx6ul_init_irq(void)
+{
+ imx_init_revision_from_anatop();
+ imx_src_init();
+ irqchip_init();
+ imx6_pm_ccm_init("fsl,imx6ul-ccm");
+}
+
+static void __init imx6ul_init_late(void)
+{
+ if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ))
+ platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0);
+}
+
+static const char *imx6ul_dt_compat[] __initconst = {
+ "fsl,imx6ul",
+ NULL,
+};
+
+DT_MACHINE_START(IMX6UL, "Freescale i.MX6 Ultralite (Device Tree)")
+ .init_irq = imx6ul_init_irq,
+ .init_machine = imx6ul_init_machine,
+ .init_late = imx6ul_init_late,
+ .dt_compat = imx6ul_dt_compat,
+MACHINE_END