1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright 2013 Freescale Semiconductor, Inc.
4 */
5
6 #include <linux/irqchip.h>
7 #include <linux/of_platform.h>
8 #include <linux/mfd/syscon.h>
9 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
10 #include <linux/regmap.h>
11 #include <asm/mach/arch.h>
12 #include <asm/mach/map.h>
13
14 #include "common.h"
15 #include "cpuidle.h"
16 #include "hardware.h"
17
imx6sl_fec_init(void)18 static void __init imx6sl_fec_init(void)
19 {
20 struct regmap *gpr;
21
22 /* set FEC clock from internal PLL clock source */
23 gpr = syscon_regmap_lookup_by_compatible("fsl,imx6sl-iomuxc-gpr");
24 if (!IS_ERR(gpr)) {
25 regmap_update_bits(gpr, IOMUXC_GPR1,
26 IMX6SL_GPR1_FEC_CLOCK_MUX2_SEL_MASK, 0);
27 regmap_update_bits(gpr, IOMUXC_GPR1,
28 IMX6SL_GPR1_FEC_CLOCK_MUX1_SEL_MASK, 0);
29 } else {
30 pr_err("failed to find fsl,imx6sl-iomux-gpr regmap\n");
31 }
32 }
33
imx6sl_init_late(void)34 static void __init imx6sl_init_late(void)
35 {
36 /* imx6sl reuses imx6q cpufreq driver */
37 if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ))
38 platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0);
39
40 if (IS_ENABLED(CONFIG_SOC_IMX6SL) && cpu_is_imx6sl())
41 imx6sl_cpuidle_init();
42 else if (IS_ENABLED(CONFIG_SOC_IMX6SLL))
43 imx6sx_cpuidle_init();
44 }
45
imx6sl_init_machine(void)46 static void __init imx6sl_init_machine(void)
47 {
48 of_platform_default_populate(NULL, NULL, NULL);
49
50 if (cpu_is_imx6sl())
51 imx6sl_fec_init();
52 imx_anatop_init();
53 imx6sl_pm_init();
54 }
55
imx6sl_init_irq(void)56 static void __init imx6sl_init_irq(void)
57 {
58 imx_gpc_check_dt();
59 imx_init_revision_from_anatop();
60 imx_init_l2cache();
61 imx_src_init();
62 irqchip_init();
63 if (cpu_is_imx6sl())
64 imx6_pm_ccm_init("fsl,imx6sl-ccm");
65 else
66 imx6_pm_ccm_init("fsl,imx6sll-ccm");
67 }
68
69 static const char * const imx6sl_dt_compat[] __initconst = {
70 "fsl,imx6sl",
71 "fsl,imx6sll",
72 NULL,
73 };
74
75 DT_MACHINE_START(IMX6SL, "Freescale i.MX6 SoloLite (Device Tree)")
76 .l2c_aux_val = 0,
77 .l2c_aux_mask = ~0,
78 .init_irq = imx6sl_init_irq,
79 .init_machine = imx6sl_init_machine,
80 .init_late = imx6sl_init_late,
81 .dt_compat = imx6sl_dt_compat,
82 MACHINE_END
83