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