diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/bus/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/bus/mips_cdmm.c | 15 | ||||
| -rw-r--r-- | drivers/memory/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/of/address.c | 27 | ||||
| -rw-r--r-- | drivers/platform/mips/cpu_hwmon.c | 66 | ||||
| -rw-r--r-- | drivers/platform/mips/rs780e-acpi.c | 2 |
6 files changed, 58 insertions, 55 deletions
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig index c8818e3b1079..0c262c2aeaf2 100644 --- a/drivers/bus/Kconfig +++ b/drivers/bus/Kconfig @@ -97,7 +97,7 @@ config IMX_WEIM config MIPS_CDMM bool "MIPS Common Device Memory Map (CDMM) Driver" - depends on CPU_MIPSR2 + depends on CPU_MIPSR2 || CPU_MIPSR5 help Driver needed for the MIPS Common Device Memory Map bus in MIPS cores. This bus is for per-CPU tightly coupled devices such as the diff --git a/drivers/bus/mips_cdmm.c b/drivers/bus/mips_cdmm.c index 1b14256376d2..9f7ed1fcd428 100644 --- a/drivers/bus/mips_cdmm.c +++ b/drivers/bus/mips_cdmm.c @@ -13,6 +13,8 @@ #include <linux/cpu.h> #include <linux/cpumask.h> #include <linux/io.h> +#include <linux/of_address.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/smp.h> @@ -337,9 +339,22 @@ static phys_addr_t mips_cdmm_cur_base(void) * Picking a suitable physical address at which to map the CDMM region is * platform specific, so this weak function can be overridden by platform * code to pick a suitable value if none is configured by the bootloader. + * By default this method tries to find a CDMM-specific node in the system + * dtb. Note that this won't work for early serial console. */ phys_addr_t __weak mips_cdmm_phys_base(void) { + struct device_node *np; + struct resource res; + int err; + + np = of_find_compatible_node(NULL, NULL, "mti,mips-cdmm"); + if (np) { + err = of_address_to_resource(np, 0, &res); + if (!err) + return res.start; + } + return 0; } diff --git a/drivers/memory/Kconfig b/drivers/memory/Kconfig index 00060bdbf574..97440af499b0 100644 --- a/drivers/memory/Kconfig +++ b/drivers/memory/Kconfig @@ -147,7 +147,6 @@ config FSL_IFC config JZ4780_NEMC bool "Ingenic JZ4780 SoC NEMC driver" - default y depends on MIPS || COMPILE_TEST depends on HAS_IOMEM && OF help diff --git a/drivers/of/address.c b/drivers/of/address.c index 381dc9be7b22..590493e04b01 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -49,6 +49,7 @@ struct of_bus { u64 (*map)(__be32 *addr, const __be32 *range, int na, int ns, int pna); int (*translate)(__be32 *addr, u64 offset, int na); + bool has_flags; unsigned int (*get_flags)(const __be32 *addr); }; @@ -100,6 +101,7 @@ static unsigned int of_bus_default_get_flags(const __be32 *addr) return IORESOURCE_MEM; } +#ifdef CONFIG_PCI static unsigned int of_bus_pci_get_flags(const __be32 *addr) { unsigned int flags = 0; @@ -122,7 +124,6 @@ static unsigned int of_bus_pci_get_flags(const __be32 *addr) return flags; } -#ifdef CONFIG_PCI /* * PCI bus specific translator */ @@ -364,6 +365,7 @@ static struct of_bus of_busses[] = { .count_cells = of_bus_pci_count_cells, .map = of_bus_pci_map, .translate = of_bus_pci_translate, + .has_flags = true, .get_flags = of_bus_pci_get_flags, }, #endif /* CONFIG_PCI */ @@ -375,6 +377,7 @@ static struct of_bus of_busses[] = { .count_cells = of_bus_isa_count_cells, .map = of_bus_isa_map, .translate = of_bus_isa_translate, + .has_flags = true, .get_flags = of_bus_isa_get_flags, }, /* Default */ @@ -701,6 +704,7 @@ static int parser_init(struct of_pci_range_parser *parser, parser->na = of_bus_n_addr_cells(node); parser->ns = of_bus_n_size_cells(node); parser->dma = !strcmp(name, "dma-ranges"); + parser->bus = of_match_bus(node); parser->range = of_get_property(node, name, &rlen); if (parser->range == NULL) @@ -732,6 +736,7 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser, int na = parser->na; int ns = parser->ns; int np = parser->pna + na + ns; + int busflag_na = 0; if (!range) return NULL; @@ -739,12 +744,13 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser, if (!parser->range || parser->range + np > parser->end) return NULL; - if (parser->na == 3) - range->flags = of_bus_pci_get_flags(parser->range); - else - range->flags = 0; + range->flags = parser->bus->get_flags(parser->range); + + /* A extra cell for resource flags */ + if (parser->bus->has_flags) + busflag_na = 1; - range->pci_addr = of_read_number(parser->range, na); + range->bus_addr = of_read_number(parser->range + busflag_na, na - busflag_na); if (parser->dma) range->cpu_addr = of_translate_dma_address(parser->node, @@ -759,11 +765,10 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser, /* Now consume following elements while they are contiguous */ while (parser->range + np <= parser->end) { u32 flags = 0; - u64 pci_addr, cpu_addr, size; + u64 bus_addr, cpu_addr, size; - if (parser->na == 3) - flags = of_bus_pci_get_flags(parser->range); - pci_addr = of_read_number(parser->range, na); + flags = parser->bus->get_flags(parser->range); + bus_addr = of_read_number(parser->range + busflag_na, na - busflag_na); if (parser->dma) cpu_addr = of_translate_dma_address(parser->node, parser->range + na); @@ -774,7 +779,7 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser, if (flags != range->flags) break; - if (pci_addr != range->pci_addr + range->size || + if (bus_addr != range->bus_addr + range->size || cpu_addr != range->cpu_addr + range->size) break; diff --git a/drivers/platform/mips/cpu_hwmon.c b/drivers/platform/mips/cpu_hwmon.c index 0d27cb7a9e3c..386389ffec41 100644 --- a/drivers/platform/mips/cpu_hwmon.c +++ b/drivers/platform/mips/cpu_hwmon.c @@ -11,7 +11,7 @@ #include <loongson_hwmon.h> #include <loongson_regs.h> -static int csr_temp_enable = 0; +static int csr_temp_enable; /* * Loongson-3 series cpu has two sensors inside, @@ -44,7 +44,7 @@ int loongson3_cpu_temp(int cpu) case PRID_REV_LOONGSON3A_R3_0: case PRID_REV_LOONGSON3A_R3_1: default: - reg = (reg & 0xffff)*731/0x4000 - 273; + reg = (reg & 0xffff) * 731 / 0x4000 - 273; break; } @@ -55,9 +55,7 @@ out: static int nr_packages; static struct device *cpu_hwmon_dev; -static ssize_t get_hwmon_name(struct device *dev, - struct device_attribute *attr, char *buf); -static SENSOR_DEVICE_ATTR(name, S_IRUGO, get_hwmon_name, NULL, 0); +static SENSOR_DEVICE_ATTR(name, 0444, NULL, NULL, 0); static struct attribute *cpu_hwmon_attributes[] = { &sensor_dev_attr_name.dev_attr.attr, @@ -69,26 +67,19 @@ static struct attribute_group cpu_hwmon_attribute_group = { .attrs = cpu_hwmon_attributes, }; -/* Hwmon device get name */ -static ssize_t get_hwmon_name(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "cpu-hwmon\n"); -} - static ssize_t get_cpu_temp(struct device *dev, struct device_attribute *attr, char *buf); static ssize_t cpu_temp_label(struct device *dev, struct device_attribute *attr, char *buf); -static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_cpu_temp, NULL, 1); -static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, cpu_temp_label, NULL, 1); -static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, get_cpu_temp, NULL, 2); -static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, cpu_temp_label, NULL, 2); -static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, get_cpu_temp, NULL, 3); -static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, cpu_temp_label, NULL, 3); -static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, get_cpu_temp, NULL, 4); -static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, cpu_temp_label, NULL, 4); +static SENSOR_DEVICE_ATTR(temp1_input, 0444, get_cpu_temp, NULL, 1); +static SENSOR_DEVICE_ATTR(temp1_label, 0444, cpu_temp_label, NULL, 1); +static SENSOR_DEVICE_ATTR(temp2_input, 0444, get_cpu_temp, NULL, 2); +static SENSOR_DEVICE_ATTR(temp2_label, 0444, cpu_temp_label, NULL, 2); +static SENSOR_DEVICE_ATTR(temp3_input, 0444, get_cpu_temp, NULL, 3); +static SENSOR_DEVICE_ATTR(temp3_label, 0444, cpu_temp_label, NULL, 3); +static SENSOR_DEVICE_ATTR(temp4_input, 0444, get_cpu_temp, NULL, 4); +static SENSOR_DEVICE_ATTR(temp4_label, 0444, cpu_temp_label, NULL, 4); static const struct attribute *hwmon_cputemp[4][3] = { { @@ -117,6 +108,7 @@ static ssize_t cpu_temp_label(struct device *dev, struct device_attribute *attr, char *buf) { int id = (to_sensor_dev_attr(attr))->index - 1; + return sprintf(buf, "CPU %d Temperature\n", id); } @@ -125,6 +117,7 @@ static ssize_t get_cpu_temp(struct device *dev, { int id = (to_sensor_dev_attr(attr))->index - 1; int value = loongson3_cpu_temp(id); + return sprintf(buf, "%d\n", value); } @@ -132,7 +125,7 @@ static int create_sysfs_cputemp_files(struct kobject *kobj) { int i, ret = 0; - for (i=0; i<nr_packages; i++) + for (i = 0; i < nr_packages; i++) ret = sysfs_create_files(kobj, hwmon_cputemp[i]); return ret; @@ -142,7 +135,7 @@ static void remove_sysfs_cputemp_files(struct kobject *kobj) { int i; - for (i=0; i<nr_packages; i++) + for (i = 0; i < nr_packages; i++) sysfs_remove_files(kobj, hwmon_cputemp[i]); } @@ -151,18 +144,17 @@ static struct delayed_work thermal_work; static void do_thermal_timer(struct work_struct *work) { - int i, value, temp_max = 0; + int i, value; - for (i=0; i<nr_packages; i++) { + for (i = 0; i < nr_packages; i++) { value = loongson3_cpu_temp(i); - if (value > temp_max) - temp_max = value; + if (value > CPU_THERMAL_THRESHOLD) { + pr_emerg("Power off due to high temp: %d\n", value); + orderly_poweroff(true); + } } - if (temp_max <= CPU_THERMAL_THRESHOLD) - schedule_delayed_work(&thermal_work, msecs_to_jiffies(5000)); - else - orderly_poweroff(true); + schedule_delayed_work(&thermal_work, msecs_to_jiffies(5000)); } static int __init loongson_hwmon_init(void) @@ -172,9 +164,10 @@ static int __init loongson_hwmon_init(void) pr_info("Loongson Hwmon Enter...\n"); if (cpu_has_csr()) - csr_temp_enable = csr_readl(LOONGSON_CSR_FEATURES) & LOONGSON_CSRF_TEMP; + csr_temp_enable = csr_readl(LOONGSON_CSR_FEATURES) & + LOONGSON_CSRF_TEMP; - cpu_hwmon_dev = hwmon_device_register(NULL); + cpu_hwmon_dev = hwmon_device_register_with_info(NULL, "cpu_hwmon", NULL, NULL, NULL); if (IS_ERR(cpu_hwmon_dev)) { ret = PTR_ERR(cpu_hwmon_dev); pr_err("hwmon_device_register fail!\n"); @@ -184,13 +177,6 @@ static int __init loongson_hwmon_init(void) nr_packages = loongson_sysconf.nr_cpus / loongson_sysconf.cores_per_package; - ret = sysfs_create_group(&cpu_hwmon_dev->kobj, - &cpu_hwmon_attribute_group); - if (ret) { - pr_err("fail to create loongson hwmon!\n"); - goto fail_sysfs_create_group_hwmon; - } - ret = create_sysfs_cputemp_files(&cpu_hwmon_dev->kobj); if (ret) { pr_err("fail to create cpu temperature interface!\n"); @@ -205,8 +191,6 @@ static int __init loongson_hwmon_init(void) fail_create_sysfs_cputemp_files: sysfs_remove_group(&cpu_hwmon_dev->kobj, &cpu_hwmon_attribute_group); - -fail_sysfs_create_group_hwmon: hwmon_device_unregister(cpu_hwmon_dev); fail_hwmon_device_register: diff --git a/drivers/platform/mips/rs780e-acpi.c b/drivers/platform/mips/rs780e-acpi.c index e5a643b78ac9..bb0e8ae0eefd 100644 --- a/drivers/platform/mips/rs780e-acpi.c +++ b/drivers/platform/mips/rs780e-acpi.c @@ -69,7 +69,7 @@ static void acpi_hw_clear_status(void) outl(inl(ACPI_GPE0_BLK), ACPI_GPE0_BLK); } -void acpi_registers_setup(void) +static void acpi_registers_setup(void) { u32 value; |