Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 | #include <linux/irqchip.h> |
Fugang Duan | 709bc06 | 2015-07-28 15:30:40 +0800 | [diff] [blame] | 9 | #include <linux/mfd/syscon.h> |
| 10 | #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h> |
| 11 | #include <linux/micrel_phy.h> |
Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 12 | #include <linux/of_platform.h> |
Fugang Duan | 709bc06 | 2015-07-28 15:30:40 +0800 | [diff] [blame] | 13 | #include <linux/phy.h> |
| 14 | #include <linux/regmap.h> |
Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 15 | #include <asm/mach/arch.h> |
| 16 | #include <asm/mach/map.h> |
| 17 | |
| 18 | #include "common.h" |
Anson Huang | 547e8f5 | 2016-08-29 23:41:12 +0800 | [diff] [blame] | 19 | #include "cpuidle.h" |
Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 20 | |
Fugang Duan | 709bc06 | 2015-07-28 15:30:40 +0800 | [diff] [blame] | 21 | static void __init imx6ul_enet_clk_init(void) |
| 22 | { |
| 23 | struct regmap *gpr; |
| 24 | |
| 25 | gpr = syscon_regmap_lookup_by_compatible("fsl,imx6ul-iomuxc-gpr"); |
| 26 | if (!IS_ERR(gpr)) |
| 27 | regmap_update_bits(gpr, IOMUXC_GPR1, IMX6UL_GPR1_ENET_CLK_DIR, |
| 28 | IMX6UL_GPR1_ENET_CLK_OUTPUT); |
| 29 | else |
| 30 | pr_err("failed to find fsl,imx6ul-iomux-gpr regmap\n"); |
| 31 | |
| 32 | } |
| 33 | |
| 34 | static int ksz8081_phy_fixup(struct phy_device *dev) |
| 35 | { |
| 36 | if (dev && dev->interface == PHY_INTERFACE_MODE_MII) { |
| 37 | phy_write(dev, 0x1f, 0x8110); |
| 38 | phy_write(dev, 0x16, 0x201); |
| 39 | } else if (dev && dev->interface == PHY_INTERFACE_MODE_RMII) { |
| 40 | phy_write(dev, 0x1f, 0x8190); |
| 41 | phy_write(dev, 0x16, 0x202); |
| 42 | } |
| 43 | |
| 44 | return 0; |
| 45 | } |
| 46 | |
| 47 | static void __init imx6ul_enet_phy_init(void) |
| 48 | { |
Fabio Estevam | 6be4b0d | 2015-08-19 15:31:30 -0300 | [diff] [blame] | 49 | if (IS_BUILTIN(CONFIG_PHYLIB)) |
Fabio Estevam | 20c1522 | 2016-05-11 16:39:30 -0300 | [diff] [blame] | 50 | phy_register_fixup_for_uid(PHY_ID_KSZ8081, MICREL_PHY_ID_MASK, |
Fabio Estevam | 6be4b0d | 2015-08-19 15:31:30 -0300 | [diff] [blame] | 51 | ksz8081_phy_fixup); |
Fugang Duan | 709bc06 | 2015-07-28 15:30:40 +0800 | [diff] [blame] | 52 | } |
| 53 | |
| 54 | static inline void imx6ul_enet_init(void) |
| 55 | { |
| 56 | imx6ul_enet_clk_init(); |
| 57 | imx6ul_enet_phy_init(); |
| 58 | } |
| 59 | |
Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 60 | static void __init imx6ul_init_machine(void) |
| 61 | { |
| 62 | struct device *parent; |
| 63 | |
| 64 | parent = imx_soc_device_init(); |
| 65 | if (parent == NULL) |
| 66 | pr_warn("failed to initialize soc device\n"); |
| 67 | |
Peter Chen | cfee6b58 | 2016-08-16 10:05:15 +0800 | [diff] [blame] | 68 | of_platform_default_populate(NULL, NULL, parent); |
Fugang Duan | 709bc06 | 2015-07-28 15:30:40 +0800 | [diff] [blame] | 69 | imx6ul_enet_init(); |
Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 70 | imx_anatop_init(); |
Anson Huang | ee4a5f8 | 2015-08-05 01:48:37 +0800 | [diff] [blame] | 71 | imx6ul_pm_init(); |
Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | static void __init imx6ul_init_irq(void) |
| 75 | { |
| 76 | imx_init_revision_from_anatop(); |
| 77 | imx_src_init(); |
| 78 | irqchip_init(); |
Anson Huang | ee4a5f8 | 2015-08-05 01:48:37 +0800 | [diff] [blame] | 79 | imx6_pm_ccm_init("fsl,imx6ul-ccm"); |
Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 80 | } |
| 81 | |
Bai Ping | 7f73081 | 2015-10-09 23:35:30 +0800 | [diff] [blame] | 82 | static void __init imx6ul_init_late(void) |
| 83 | { |
Anson Huang | 547e8f5 | 2016-08-29 23:41:12 +0800 | [diff] [blame] | 84 | imx6sx_cpuidle_init(); |
| 85 | |
Bai Ping | 7f73081 | 2015-10-09 23:35:30 +0800 | [diff] [blame] | 86 | if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) |
| 87 | platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0); |
| 88 | } |
| 89 | |
Nicolas Pitre | 5d48417 | 2015-11-21 20:35:31 -0500 | [diff] [blame] | 90 | static const char * const imx6ul_dt_compat[] __initconst = { |
Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 91 | "fsl,imx6ul", |
Peter Chen | 75b832f | 2016-11-14 15:04:21 +0800 | [diff] [blame] | 92 | "fsl,imx6ull", |
Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 93 | NULL, |
| 94 | }; |
| 95 | |
| 96 | DT_MACHINE_START(IMX6UL, "Freescale i.MX6 Ultralite (Device Tree)") |
| 97 | .init_irq = imx6ul_init_irq, |
| 98 | .init_machine = imx6ul_init_machine, |
Bai Ping | 7f73081 | 2015-10-09 23:35:30 +0800 | [diff] [blame] | 99 | .init_late = imx6ul_init_late, |
Frank Li | 022d071 | 2015-07-10 02:09:41 +0800 | [diff] [blame] | 100 | .dt_compat = imx6ul_dt_compat, |
| 101 | MACHINE_END |