1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright 2014 Freescale Semiconductor, Inc. 4 */ 5 6 #include <linux/irqchip.h> 7 #include <linux/of_platform.h> 8 #include <linux/phy.h> 9 #include <linux/regmap.h> 10 #include <linux/mfd/syscon.h> 11 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h> 12 #include <asm/mach/arch.h> 13 #include <asm/mach/map.h> 14 15 #include "common.h" 16 #include "cpuidle.h" 17 18 static void __init imx6sx_enet_clk_sel(void) 19 { 20 struct regmap *gpr; 21 22 gpr = syscon_regmap_lookup_by_compatible("fsl,imx6sx-iomuxc-gpr"); 23 if (!IS_ERR(gpr)) { 24 regmap_update_bits(gpr, IOMUXC_GPR1, 25 IMX6SX_GPR1_FEC_CLOCK_MUX_SEL_MASK, 0); 26 regmap_update_bits(gpr, IOMUXC_GPR1, 27 IMX6SX_GPR1_FEC_CLOCK_PAD_DIR_MASK, 0); 28 } else { 29 pr_err("failed to find fsl,imx6sx-iomux-gpr regmap\n"); 30 } 31 } 32 33 static inline void imx6sx_enet_init(void) 34 { 35 imx6sx_enet_clk_sel(); 36 } 37 38 static void __init imx6sx_init_machine(void) 39 { 40 of_platform_default_populate(NULL, NULL, NULL); 41 42 imx6sx_enet_init(); 43 imx_anatop_init(); 44 imx6sx_pm_init(); 45 } 46 47 static void __init imx6sx_init_irq(void) 48 { 49 imx_gpc_check_dt(); 50 imx_init_revision_from_anatop(); 51 imx_init_l2cache(); 52 imx_src_init(); 53 irqchip_init(); 54 imx6_pm_ccm_init("fsl,imx6sx-ccm"); 55 } 56 57 static void __init imx6sx_init_late(void) 58 { 59 imx6sx_cpuidle_init(); 60 61 if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) 62 platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0); 63 } 64 65 static const char * const imx6sx_dt_compat[] __initconst = { 66 "fsl,imx6sx", 67 NULL, 68 }; 69 70 DT_MACHINE_START(IMX6SX, "Freescale i.MX6 SoloX (Device Tree)") 71 .l2c_aux_val = 0, 72 .l2c_aux_mask = ~0, 73 .init_irq = imx6sx_init_irq, 74 .init_machine = imx6sx_init_machine, 75 .dt_compat = imx6sx_dt_compat, 76 .init_late = imx6sx_init_late, 77 MACHINE_END 78