diff options
Diffstat (limited to 'arch/arm/mach-imx/mach-imx7d.c')
| -rw-r--r-- | arch/arm/mach-imx/mach-imx7d.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-imx7d.c b/arch/arm/mach-imx/mach-imx7d.c index 26ca744d3e2b..3f335974723f 100644 --- a/arch/arm/mach-imx/mach-imx7d.c +++ b/arch/arm/mach-imx/mach-imx7d.c @@ -10,12 +10,20 @@ #include <linux/mfd/syscon/imx7-iomuxc-gpr.h> #include <linux/of_platform.h> #include <linux/phy.h> +#include <linux/pm_opp.h> #include <linux/regmap.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include "common.h" +#include "cpuidle.h" + +static struct property device_disabled = { + .name = "status", + .length = sizeof("disabled"), + .value = "disabled", +}; static int ar8031_phy_fixup(struct phy_device *dev) { @@ -66,6 +74,23 @@ static void __init imx7d_enet_phy_init(void) } } +static void __init imx7d_enet_mdio_fixup(void) +{ + struct regmap *gpr; + + /* The management data input/output (MDIO) bus where often high-speed, + * open-drain operation is required. i.MX7D TO1.0 ENET MDIO pin has no + * open drain as IC ticket number: TKT252980, i.MX7D TO1.1 fix the issue. + * GPR1[8:7] are reserved bits at TO1.0, there no need to add version check. + */ + gpr = syscon_regmap_lookup_by_compatible("fsl,imx7d-iomuxc-gpr"); + if (!IS_ERR(gpr)) + regmap_update_bits(gpr, IOMUXC_GPR0, IMX7D_GPR0_ENET_MDIO_OPEN_DRAIN_MASK, + IMX7D_GPR0_ENET_MDIO_OPEN_DRAIN_MASK); + else + pr_err("failed to find fsl,imx7d-iomux-gpr regmap\n"); +} + static void __init imx7d_enet_clk_sel(void) { struct regmap *gpr; @@ -81,10 +106,23 @@ static void __init imx7d_enet_clk_sel(void) static inline void imx7d_enet_init(void) { + imx6_enet_mac_init("fsl,imx7d-fec", "fsl,imx7d-ocotp"); + imx7d_enet_mdio_fixup(); imx7d_enet_phy_init(); imx7d_enet_clk_sel(); } +static inline void imx7d_disable_arm_arch_timer(void) +{ + struct device_node *node; + + node = of_find_compatible_node(NULL, NULL, "arm,armv7-timer"); + if (node) { + pr_info("disable arm arch timer for nosmp!\n"); + of_add_property(node, &device_disabled); + } +} + static void __init imx7d_init_machine(void) { struct device *parent; @@ -93,15 +131,36 @@ static void __init imx7d_init_machine(void) if (parent == NULL) pr_warn("failed to initialize soc device\n"); + of_platform_default_populate(NULL, NULL, parent); + imx7d_pm_init(); imx_anatop_init(); imx7d_enet_init(); } static void __init imx7d_init_irq(void) { + imx_gpcv2_check_dt(); imx_init_revision_from_anatop(); imx_src_init(); irqchip_init(); +#ifndef CONFIG_SMP + imx7d_disable_arm_arch_timer(); +#endif +} + +static void __init imx7d_init_late(void) +{ + if (IS_ENABLED(CONFIG_ARM_IMX7D_CPUFREQ)) { + platform_device_register_simple("imx7d-cpufreq", -1, NULL, 0); + } + imx7d_cpuidle_init(); +} + +static void __init imx7d_map_io(void) +{ + debug_ll_io_init(); + imx7_pm_map_io(); + imx_busfreq_map_io(); } static const char *const imx7d_dt_compat[] __initconst = { @@ -111,7 +170,10 @@ static const char *const imx7d_dt_compat[] __initconst = { }; DT_MACHINE_START(IMX7D, "Freescale i.MX7 Dual (Device Tree)") + .map_io = imx7d_map_io, + .smp = smp_ops(imx_smp_ops), .init_irq = imx7d_init_irq, .init_machine = imx7d_init_machine, + .init_late = imx7d_init_late, .dt_compat = imx7d_dt_compat, MACHINE_END |