These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / arm / mach-imx / mach-imx6ul.c

diff --git a/kernel/arch/arm/mach-imx/mach-imx6ul.c b/kernel/arch/arm/mach-imx/mach-imx6ul.c
new file mode 100644 (file)
index 0000000..acaf705
--- /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