diff options
| -rw-r--r-- | arch/arm/mach-imx/3ds_debugboard.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-imx/cpuidle-imx5.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mach-imx6q.c | 97 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mach-mx31lite.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mx31moboard-devboard.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mx31moboard-marxbot.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/pm.c | 2 | ||||
| -rw-r--r-- | drivers/cpufreq/imx6q-cpufreq.c | 85 |
8 files changed, 79 insertions, 112 deletions
diff --git a/arch/arm/mach-imx/3ds_debugboard.c b/arch/arm/mach-imx/3ds_debugboard.c index cda330c93d61..0015abe9cb2b 100644 --- a/arch/arm/mach-imx/3ds_debugboard.c +++ b/arch/arm/mach-imx/3ds_debugboard.c @@ -20,7 +20,7 @@ #include <linux/smsc911x.h> #include <linux/regulator/machine.h> #include <linux/regulator/fixed.h> - +#include "3ds_debugboard.h" #include "hardware.h" /* LAN9217 ethernet base address */ diff --git a/arch/arm/mach-imx/cpuidle-imx5.c b/arch/arm/mach-imx/cpuidle-imx5.c index 3feca526d16b..db0127606aed 100644 --- a/arch/arm/mach-imx/cpuidle-imx5.c +++ b/arch/arm/mach-imx/cpuidle-imx5.c @@ -9,6 +9,7 @@ #include <linux/cpuidle.h> #include <linux/module.h> #include <asm/system_misc.h> +#include "cpuidle.h" static int imx5_cpuidle_enter(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index 45801b27ee5c..7d80a0ae723c 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -286,101 +286,20 @@ static void __init imx6q_init_machine(void) imx6q_axi_init(); } -#define OCOTP_CFG3 0x440 -#define OCOTP_CFG3_SPEED_SHIFT 16 -#define OCOTP_CFG3_SPEED_1P2GHZ 0x3 -#define OCOTP_CFG3_SPEED_996MHZ 0x2 -#define OCOTP_CFG3_SPEED_852MHZ 0x1 - -static void __init imx6q_opp_check_speed_grading(struct device *cpu_dev) -{ - struct device_node *np; - void __iomem *base; - u32 val; - - np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ocotp"); - if (!np) { - pr_warn("failed to find ocotp node\n"); - return; - } - - base = of_iomap(np, 0); - if (!base) { - pr_warn("failed to map ocotp\n"); - goto put_node; - } - - /* - * SPEED_GRADING[1:0] defines the max speed of ARM: - * 2b'11: 1200000000Hz; - * 2b'10: 996000000Hz; - * 2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz. - * 2b'00: 792000000Hz; - * We need to set the max speed of ARM according to fuse map. - */ - val = readl_relaxed(base + OCOTP_CFG3); - val >>= OCOTP_CFG3_SPEED_SHIFT; - val &= 0x3; - - if ((val != OCOTP_CFG3_SPEED_1P2GHZ) && cpu_is_imx6q()) - if (dev_pm_opp_disable(cpu_dev, 1200000000)) - pr_warn("failed to disable 1.2 GHz OPP\n"); - if (val < OCOTP_CFG3_SPEED_996MHZ) - if (dev_pm_opp_disable(cpu_dev, 996000000)) - pr_warn("failed to disable 996 MHz OPP\n"); - if (cpu_is_imx6q()) { - if (val != OCOTP_CFG3_SPEED_852MHZ) - if (dev_pm_opp_disable(cpu_dev, 852000000)) - pr_warn("failed to disable 852 MHz OPP\n"); - } - iounmap(base); -put_node: - of_node_put(np); -} - -static void __init imx6q_opp_init(void) -{ - struct device_node *np; - struct device *cpu_dev = get_cpu_device(0); - - if (!cpu_dev) { - pr_warn("failed to get cpu0 device\n"); - return; - } - np = of_node_get(cpu_dev->of_node); - if (!np) { - pr_warn("failed to find cpu0 node\n"); - return; - } - - if (dev_pm_opp_of_add_table(cpu_dev)) { - pr_warn("failed to init OPP table\n"); - goto put_node; - } - - imx6q_opp_check_speed_grading(cpu_dev); - -put_node: - of_node_put(np); -} - -static struct platform_device imx6q_cpufreq_pdev = { - .name = "imx6q-cpufreq", -}; - static void __init imx6q_init_late(void) { /* - * WAIT mode is broken on TO 1.0 and 1.1, so there is no point - * to run cpuidle on them. + * WAIT mode is broken on imx6 Dual/Quad revision 1.0 and 1.1 so + * there is no point to run cpuidle on them. + * + * It does work on imx6 Solo/DualLite starting from 1.1 */ - if (imx_get_soc_revision() > IMX_CHIP_REVISION_1_1) + if ((cpu_is_imx6q() && imx_get_soc_revision() > IMX_CHIP_REVISION_1_1) || + (cpu_is_imx6dl() && imx_get_soc_revision() > IMX_CHIP_REVISION_1_0)) imx6q_cpuidle_init(); - if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) { - imx6q_opp_init(); - platform_device_register(&imx6q_cpufreq_pdev); - } + if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) + platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0); } static void __init imx6q_map_io(void) diff --git a/arch/arm/mach-imx/mach-mx31lite.c b/arch/arm/mach-imx/mach-mx31lite.c index f033a57d5694..a3250bc7f114 100644 --- a/arch/arm/mach-imx/mach-mx31lite.c +++ b/arch/arm/mach-imx/mach-mx31lite.c @@ -245,7 +245,7 @@ static struct map_desc mx31lite_io_desc[] __initdata = { /* * Set up static virtual mappings. */ -void __init mx31lite_map_io(void) +static void __init mx31lite_map_io(void) { mx31_map_io(); iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc)); diff --git a/arch/arm/mach-imx/mx31moboard-devboard.c b/arch/arm/mach-imx/mx31moboard-devboard.c index 1e91a0918e83..3c224f41e68e 100644 --- a/arch/arm/mach-imx/mx31moboard-devboard.c +++ b/arch/arm/mach-imx/mx31moboard-devboard.c @@ -22,6 +22,7 @@ #include <linux/usb/otg.h> +#include "board-mx31moboard.h" #include "common.h" #include "devices-imx31.h" #include "ehci.h" diff --git a/arch/arm/mach-imx/mx31moboard-marxbot.c b/arch/arm/mach-imx/mx31moboard-marxbot.c index 922d49175cb4..9a5a869be1ae 100644 --- a/arch/arm/mach-imx/mx31moboard-marxbot.c +++ b/arch/arm/mach-imx/mx31moboard-marxbot.c @@ -24,6 +24,7 @@ #include <linux/usb/otg.h> +#include "board-mx31moboard.h" #include "common.h" #include "devices-imx31.h" #include "ehci.h" diff --git a/arch/arm/mach-mxs/pm.c b/arch/arm/mach-mxs/pm.c index 0170e99fd70f..6ae057c2cf9f 100644 --- a/arch/arm/mach-mxs/pm.c +++ b/arch/arm/mach-mxs/pm.c @@ -30,7 +30,7 @@ static int mxs_suspend_enter(suspend_state_t state) return 0; } -static struct platform_suspend_ops mxs_suspend_ops = { +static const struct platform_suspend_ops mxs_suspend_ops = { .enter = mxs_suspend_enter, .valid = suspend_valid_only_mem, }; diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index 14466a9b01c0..628fe899cb48 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -12,6 +12,7 @@ #include <linux/err.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_address.h> #include <linux/pm_opp.h> #include <linux/platform_device.h> #include <linux/regulator/consumer.h> @@ -191,6 +192,57 @@ static struct cpufreq_driver imx6q_cpufreq_driver = { .suspend = cpufreq_generic_suspend, }; +#define OCOTP_CFG3 0x440 +#define OCOTP_CFG3_SPEED_SHIFT 16 +#define OCOTP_CFG3_SPEED_1P2GHZ 0x3 +#define OCOTP_CFG3_SPEED_996MHZ 0x2 +#define OCOTP_CFG3_SPEED_852MHZ 0x1 + +static void imx6q_opp_check_speed_grading(struct device *dev) +{ + struct device_node *np; + void __iomem *base; + u32 val; + + np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ocotp"); + if (!np) + return; + + base = of_iomap(np, 0); + if (!base) { + dev_err(dev, "failed to map ocotp\n"); + goto put_node; + } + + /* + * SPEED_GRADING[1:0] defines the max speed of ARM: + * 2b'11: 1200000000Hz; + * 2b'10: 996000000Hz; + * 2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz. + * 2b'00: 792000000Hz; + * We need to set the max speed of ARM according to fuse map. + */ + val = readl_relaxed(base + OCOTP_CFG3); + val >>= OCOTP_CFG3_SPEED_SHIFT; + val &= 0x3; + + if ((val != OCOTP_CFG3_SPEED_1P2GHZ) && + of_machine_is_compatible("fsl,imx6q")) + if (dev_pm_opp_disable(dev, 1200000000)) + dev_warn(dev, "failed to disable 1.2GHz OPP\n"); + if (val < OCOTP_CFG3_SPEED_996MHZ) + if (dev_pm_opp_disable(dev, 996000000)) + dev_warn(dev, "failed to disable 996MHz OPP\n"); + if (of_machine_is_compatible("fsl,imx6q")) { + if (val != OCOTP_CFG3_SPEED_852MHZ) + if (dev_pm_opp_disable(dev, 852000000)) + dev_warn(dev, "failed to disable 852MHz OPP\n"); + } + iounmap(base); +put_node: + of_node_put(np); +} + static int imx6q_cpufreq_probe(struct platform_device *pdev) { struct device_node *np; @@ -252,28 +304,21 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev) goto put_reg; } - /* - * We expect an OPP table supplied by platform. - * Just, incase the platform did not supply the OPP - * table, it will try to get it. - */ - num = dev_pm_opp_get_opp_count(cpu_dev); - if (num < 0) { - ret = dev_pm_opp_of_add_table(cpu_dev); - if (ret < 0) { - dev_err(cpu_dev, "failed to init OPP table: %d\n", ret); - goto put_reg; - } + ret = dev_pm_opp_of_add_table(cpu_dev); + if (ret < 0) { + dev_err(cpu_dev, "failed to init OPP table: %d\n", ret); + goto put_reg; + } - /* Because we have added the OPPs here, we must free them */ - free_opp = true; + imx6q_opp_check_speed_grading(cpu_dev); - num = dev_pm_opp_get_opp_count(cpu_dev); - if (num < 0) { - ret = num; - dev_err(cpu_dev, "no OPP table is found: %d\n", ret); - goto out_free_opp; - } + /* Because we have added the OPPs here, we must free them */ + free_opp = true; + num = dev_pm_opp_get_opp_count(cpu_dev); + if (num < 0) { + ret = num; + dev_err(cpu_dev, "no OPP table is found: %d\n", ret); + goto out_free_opp; } ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table); |