1 /* 2 * Copyright 2013 Freescale Semiconductor, Inc. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 * 8 */ 9 10 #include <linux/irqchip.h> 11 #include <linux/of.h> 12 #include <linux/of_platform.h> 13 #include <linux/mfd/syscon.h> 14 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h> 15 #include <linux/regmap.h> 16 #include <asm/mach/arch.h> 17 #include <asm/mach/map.h> 18 19 #include "common.h" 20 21 static void __init imx6sl_fec_init(void) 22 { 23 struct regmap *gpr; 24 25 /* set FEC clock from internal PLL clock source */ 26 gpr = syscon_regmap_lookup_by_compatible("fsl,imx6sl-iomuxc-gpr"); 27 if (!IS_ERR(gpr)) { 28 regmap_update_bits(gpr, IOMUXC_GPR1, 29 IMX6SL_GPR1_FEC_CLOCK_MUX2_SEL_MASK, 0); 30 regmap_update_bits(gpr, IOMUXC_GPR1, 31 IMX6SL_GPR1_FEC_CLOCK_MUX1_SEL_MASK, 0); 32 } else { 33 pr_err("failed to find fsl,imx6sl-iomux-gpr regmap\n"); 34 } 35 } 36 37 static void __init imx6sl_init_machine(void) 38 { 39 struct device *parent; 40 41 mxc_arch_reset_init_dt(); 42 43 parent = imx_soc_device_init(); 44 if (parent == NULL) 45 pr_warn("failed to initialize soc device\n"); 46 47 of_platform_populate(NULL, of_default_bus_match_table, NULL, parent); 48 49 imx6sl_fec_init(); 50 imx_anatop_init(); 51 /* Reuse imx6q pm code */ 52 imx6q_pm_init(); 53 } 54 55 static void __init imx6sl_init_irq(void) 56 { 57 imx_init_revision_from_anatop(); 58 imx_init_l2cache(); 59 imx_src_init(); 60 imx_gpc_init(); 61 irqchip_init(); 62 } 63 64 static const char *imx6sl_dt_compat[] __initdata = { 65 "fsl,imx6sl", 66 NULL, 67 }; 68 69 DT_MACHINE_START(IMX6SL, "Freescale i.MX6 SoloLite (Device Tree)") 70 .map_io = debug_ll_io_init, 71 .init_irq = imx6sl_init_irq, 72 .init_machine = imx6sl_init_machine, 73 .dt_compat = imx6sl_dt_compat, 74 .restart = mxc_restart, 75 MACHINE_END 76