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
imx6sx_enet_clk_sel(void)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
imx6sx_enet_init(void)31 static inline void imx6sx_enet_init(void)
32 {
33 imx6sx_enet_clk_sel();
34 }
35
imx6sx_init_machine(void)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
imx6sx_init_irq(void)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
imx6sx_init_late(void)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