#include "exynos4412.dtsi"
#include "exynos4412-ppmu-common.dtsi"
#include <dt-bindings/gpio/gpio.h>
+ #include "exynos-mfc-reserved-memory.dtsi"
/ {
chosen {
regulator-name = "VDDQ_MMC2_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
- regulator-always-on;
regulator-boot-on;
};
};
ldo21_reg: LDO21 {
- regulator-name = "LDO21_3.3V";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-always-on;
+ regulator-name = "TFLASH_2.8V";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-boot-on;
+ };
+
+ ldo22_reg: LDO22 {
+ /*
+ * Only U3 uses it, so let it define the
+ * constraints
+ */
+ regulator-name = "LDO22";
regulator-boot-on;
};
};
buck8_reg: BUCK8 {
+ /*
+ * Constraints set by specific board: X,
+ * X2 and U3.
+ */
regulator-name = "BUCK8_2.8V";
- regulator-min-microvolt = <2800000>;
- regulator-max-microvolt = <2800000>;
};
};
};
&mshc_0 {
pinctrl-0 = <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8>;
pinctrl-names = "default";
- vmmc-supply = <&ldo20_reg &buck8_reg>;
+ vmmc-supply = <&ldo20_reg>;
mmc-pwrseq = <&emmc_pwrseq>;
status = "okay";
bus-width = <4>;
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
pinctrl-names = "default";
- vmmc-supply = <&ldo4_reg &ldo21_reg>;
+ vmmc-supply = <&ldo21_reg>;
+ vqmmc-supply = <&ldo4_reg>;
cd-gpios = <&gpk2 2 GPIO_ACTIVE_HIGH>;
cd-inverted;
status = "okay";
#include "exynos4412.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
+ #include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "Insignal Origen evaluation board based on Exynos4412";
cpu0-supply = <&buck2_reg>;
};
+&exynos_usbphy {
+ status = "okay";
+};
+
+&ehci {
+ samsung,vbus-gpio = <&gpx3 5 1>;
+ status = "okay";
+
+ port@1{
+ status = "okay";
+ };
+ port@2 {
+ status = "okay";
+ };
+};
+
&fimd {
pinctrl-0 = <&lcd_clk &lcd_data24 &pwm1_out>;
pinctrl-names = "default";
};
};
- &mfc {
- samsung,mfc-r = <0x43000000 0x800000>;
- samsung,mfc-l = <0x51000000 0x800000>;
- status = "okay";
- };
-
&mshc_0 {
pinctrl-0 = <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8>;
pinctrl-names = "default";
#include <dt-bindings/regulator/maxim,max77802.h>
#include "exynos5420.dtsi"
#include "exynos5420-cpus.dtsi"
+ #include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "Google Peach Pit Rev 6+";
regulator-name = "vdd_1v2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
- regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-off-in-suspend;
regulator-name = "vdd_1v35";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
- regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
regulator-name = "vdd_2v";
regulator-min-microvolt = <2000000>;
regulator-max-microvolt = <2000000>;
- regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
regulator-name = "vdd_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
regulator-name = "vdd_ldo9";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-always-on;
regulator-state-mem {
regulator-on-in-suspend;
regulator-mode = <MAX77802_OPMODE_LP>;
regulator-name = "vdd_ldo10";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-always-on;
regulator-state-mem {
regulator-off-in-suspend;
};
status = "okay";
};
- &mfc {
- samsung,mfc-r = <0x43000000 0x800000>;
- samsung,mfc-l = <0x51000000 0x800000>;
- };
-
&mmc_0 {
status = "okay";
num-slots = <1>;
status = "okay";
};
+&tmu_cpu0 {
+ vtmu-supply = <&ldo10_reg>;
+};
+
+&tmu_cpu1 {
+ vtmu-supply = <&ldo10_reg>;
+};
+
+&tmu_cpu2 {
+ vtmu-supply = <&ldo10_reg>;
+};
+
+&tmu_cpu3 {
+ vtmu-supply = <&ldo10_reg>;
+};
+
+&tmu_gpu {
+ vtmu-supply = <&ldo10_reg>;
+};
+
&usbdrd_dwc3_0 {
dr_mode = "host";
};
/*
* Hardkernel Odroid XU3 board device tree source
*
- * Copyright (c) 2014 Collabora Ltd.
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* http://www.samsung.com
+ * Copyright (c) 2014 Collabora Ltd.
+ * Copyright (c) 2015 Lukasz Majewski <l.majewski@samsung.com>
+ * Anand Moon <linux.amoon@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#include <dt-bindings/sound/samsung-i2s.h>
#include "exynos5800.dtsi"
#include "exynos5422-cpus.dtsi"
-#include "exynos5422-cpu-thermal.dtsi"
+ #include "exynos-mfc-reserved-memory.dtsi"
/ {
memory {
#cooling-cells = <2>;
cooling-levels = <0 130 170 230>;
};
+
+ thermal-zones {
+ cpu0_thermal: cpu0-thermal {
+ thermal-sensors = <&tmu_cpu0 0>;
+ polling-delay-passive = <250>;
+ polling-delay = <0>;
+ trips {
+ cpu_alert0: cpu-alert-0 {
+ temperature = <50000>; /* millicelsius */
+ hysteresis = <5000>; /* millicelsius */
+ type = "active";
+ };
+ cpu_alert1: cpu-alert-1 {
+ temperature = <60000>; /* millicelsius */
+ hysteresis = <5000>; /* millicelsius */
+ type = "active";
+ };
+ cpu_alert2: cpu-alert-2 {
+ temperature = <70000>; /* millicelsius */
+ hysteresis = <5000>; /* millicelsius */
+ type = "active";
+ };
+ cpu_crit0: cpu-crit-0 {
+ temperature = <120000>; /* millicelsius */
+ hysteresis = <0>; /* millicelsius */
+ type = "critical";
+ };
+ /*
+ * Exynos542x supports only 4 trip-points
+ * so for these polling mode is required.
+ * Start polling at temperature level of last
+ * interrupt-driven trip: cpu_alert2
+ */
+ cpu_alert3: cpu-alert-3 {
+ temperature = <70000>; /* millicelsius */
+ hysteresis = <10000>; /* millicelsius */
+ type = "passive";
+ };
+ cpu_alert4: cpu-alert-4 {
+ temperature = <85000>; /* millicelsius */
+ hysteresis = <10000>; /* millicelsius */
+ type = "passive";
+ };
+
+ };
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert0>;
+ cooling-device = <&fan0 0 1>;
+ };
+ map1 {
+ trip = <&cpu_alert1>;
+ cooling-device = <&fan0 1 2>;
+ };
+ map2 {
+ trip = <&cpu_alert2>;
+ cooling-device = <&fan0 2 3>;
+ };
+ /*
+ * When reaching cpu_alert3, reduce CPU
+ * by 2 steps. On Exynos5422/5800 that would
+ * be: 1600 MHz and 1100 MHz.
+ */
+ map3 {
+ trip = <&cpu_alert3>;
+ cooling-device = <&cpu0 0 2>;
+ };
+ map4 {
+ trip = <&cpu_alert3>;
+ cooling-device = <&cpu4 0 2>;
+ };
+
+ /*
+ * When reaching cpu_alert4, reduce CPU
+ * further, down to 600 MHz (11 steps for big,
+ * 7 steps for LITTLE).
+ */
+ map5 {
+ trip = <&cpu_alert4>;
+ cooling-device = <&cpu0 3 7>;
+ };
+ map6 {
+ trip = <&cpu_alert4>;
+ cooling-device = <&cpu4 3 11>;
+ };
+ };
+ };
+ };
};
&bus_wcore {
};
};
- &mfc {
- samsung,mfc-r = <0x43000000 0x800000>;
- samsung,mfc-l = <0x51000000 0x800000>;
- };
-
&mmc_0 {
status = "okay";
mmc-pwrseq = <&emmc_pwrseq>;
&tmu_cpu0 {
vtmu-supply = <&ldo7_reg>;
- status = "okay";
};
&tmu_cpu1 {
vtmu-supply = <&ldo7_reg>;
- status = "okay";
};
&tmu_cpu2 {
vtmu-supply = <&ldo7_reg>;
- status = "okay";
};
&tmu_cpu3 {
vtmu-supply = <&ldo7_reg>;
- status = "okay";
};
&tmu_gpu {
vtmu-supply = <&ldo7_reg>;
- status = "okay";
};
&rtc {
#include <dt-bindings/regulator/maxim,max77802.h>
#include "exynos5800.dtsi"
#include "exynos5420-cpus.dtsi"
+ #include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "Google Peach Pi Rev 10+";
regulator-name = "vdd_1v2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
- regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-off-in-suspend;
regulator-name = "vdd_1v35";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
- regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
regulator-name = "vdd_2v";
regulator-min-microvolt = <2000000>;
regulator-max-microvolt = <2000000>;
- regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
regulator-name = "vdd_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
regulator-name = "vdd_ldo9";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-always-on;
regulator-state-mem {
regulator-on-in-suspend;
regulator-mode = <MAX77802_OPMODE_LP>;
regulator-name = "vdd_ldo10";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-always-on;
regulator-state-mem {
regulator-off-in-suspend;
};
status = "okay";
};
- &mfc {
- samsung,mfc-r = <0x43000000 0x800000>;
- samsung,mfc-l = <0x51000000 0x800000>;
- };
-
&mmc_0 {
status = "okay";
num-slots = <1>;
status = "okay";
};
+&tmu_cpu0 {
+ vtmu-supply = <&ldo10_reg>;
+};
+
+&tmu_cpu1 {
+ vtmu-supply = <&ldo10_reg>;
+};
+
+&tmu_cpu2 {
+ vtmu-supply = <&ldo10_reg>;
+};
+
+&tmu_cpu3 {
+ vtmu-supply = <&ldo10_reg>;
+};
+
+&tmu_gpu {
+ vtmu-supply = <&ldo10_reg>;
+};
+
&usbdrd_dwc3_0 {
dr_mode = "host";
};
#include <linux/sizes.h>
#include <linux/of_reserved_mem.h>
#include <linux/sort.h>
+ #include <linux/slab.h>
#define MAX_RESERVED_REGIONS 16
static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS];
}
/* Need adjust the alignment to satisfy the CMA requirement */
- if (IS_ENABLED(CONFIG_CMA) && of_flat_dt_is_compatible(node, "shared-dma-pool"))
- align = max(align, (phys_addr_t)PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order));
+ if (IS_ENABLED(CONFIG_CMA)
+ && of_flat_dt_is_compatible(node, "shared-dma-pool")
+ && of_get_flat_dt_prop(node, "reusable", NULL)
+ && !of_get_flat_dt_prop(node, "no-map", NULL)) {
+ unsigned long order =
+ max_t(unsigned long, MAX_ORDER - 1, pageblock_order);
+
+ align = max(align, (phys_addr_t)PAGE_SIZE << order);
+ }
prop = of_get_flat_dt_prop(node, "alloc-ranges", &len);
if (prop) {
return NULL;
}
+ struct rmem_assigned_device {
+ struct device *dev;
+ struct reserved_mem *rmem;
+ struct list_head list;
+ };
+
+ static LIST_HEAD(of_rmem_assigned_device_list);
+ static DEFINE_MUTEX(of_rmem_assigned_device_mutex);
+
/**
- * of_reserved_mem_device_init() - assign reserved memory region to given device
+ * of_reserved_mem_device_init_by_idx() - assign reserved memory region to
+ * given device
+ * @dev: Pointer to the device to configure
+ * @np: Pointer to the device_node with 'reserved-memory' property
+ * @idx: Index of selected region
*
- * This function assign memory region pointed by "memory-region" device tree
- * property to the given device.
+ * This function assigns respective DMA-mapping operations based on reserved
+ * memory region specified by 'memory-region' property in @np node to the @dev
+ * device. When driver needs to use more than one reserved memory region, it
+ * should allocate child devices and initialize regions by name for each of
+ * child device.
+ *
+ * Returns error code or zero on success.
*/
- int of_reserved_mem_device_init(struct device *dev)
+ int of_reserved_mem_device_init_by_idx(struct device *dev,
+ struct device_node *np, int idx)
{
+ struct rmem_assigned_device *rd;
+ struct device_node *target;
struct reserved_mem *rmem;
- struct device_node *np;
int ret;
- np = of_parse_phandle(dev->of_node, "memory-region", 0);
- if (!np)
- return -ENODEV;
+ if (!np || !dev)
+ return -EINVAL;
+
+ target = of_parse_phandle(np, "memory-region", idx);
+ if (!target)
+ return -EINVAL;
- rmem = __find_rmem(np);
- of_node_put(np);
+ rmem = __find_rmem(target);
+ of_node_put(target);
if (!rmem || !rmem->ops || !rmem->ops->device_init)
return -EINVAL;
+ rd = kmalloc(sizeof(struct rmem_assigned_device), GFP_KERNEL);
+ if (!rd)
+ return -ENOMEM;
+
ret = rmem->ops->device_init(rmem, dev);
- if (ret == 0)
+ if (ret == 0) {
+ rd->dev = dev;
+ rd->rmem = rmem;
+
+ mutex_lock(&of_rmem_assigned_device_mutex);
+ list_add(&rd->list, &of_rmem_assigned_device_list);
+ mutex_unlock(&of_rmem_assigned_device_mutex);
+
dev_info(dev, "assigned reserved memory node %s\n", rmem->name);
+ } else {
+ kfree(rd);
+ }
return ret;
}
- EXPORT_SYMBOL_GPL(of_reserved_mem_device_init);
+ EXPORT_SYMBOL_GPL(of_reserved_mem_device_init_by_idx);
/**
* of_reserved_mem_device_release() - release reserved memory device structures
+ * @dev: Pointer to the device to deconfigure
*
* This function releases structures allocated for memory region handling for
* the given device.
*/
void of_reserved_mem_device_release(struct device *dev)
{
- struct reserved_mem *rmem;
- struct device_node *np;
-
- np = of_parse_phandle(dev->of_node, "memory-region", 0);
- if (!np)
- return;
-
- rmem = __find_rmem(np);
- of_node_put(np);
+ struct rmem_assigned_device *rd;
+ struct reserved_mem *rmem = NULL;
+
+ mutex_lock(&of_rmem_assigned_device_mutex);
+ list_for_each_entry(rd, &of_rmem_assigned_device_list, list) {
+ if (rd->dev == dev) {
+ rmem = rd->rmem;
+ list_del(&rd->list);
+ kfree(rd);
+ break;
+ }
+ }
+ mutex_unlock(&of_rmem_assigned_device_mutex);
if (!rmem || !rmem->ops || !rmem->ops->device_release)
return;
#ifndef __OF_RESERVED_MEM_H
#define __OF_RESERVED_MEM_H
- struct device;
+ #include <linux/device.h>
+
struct of_phandle_args;
struct reserved_mem_ops;
_OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)
#ifdef CONFIG_OF_RESERVED_MEM
- int of_reserved_mem_device_init(struct device *dev);
+
+ int of_reserved_mem_device_init_by_idx(struct device *dev,
+ struct device_node *np, int idx);
void of_reserved_mem_device_release(struct device *dev);
+int early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
+ phys_addr_t align,
+ phys_addr_t start,
+ phys_addr_t end,
+ bool nomap,
+ phys_addr_t *res_base);
+
void fdt_init_reserved_mem(void);
void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
phys_addr_t base, phys_addr_t size);
#else
- static inline int of_reserved_mem_device_init(struct device *dev)
+ static inline int of_reserved_mem_device_init_by_idx(struct device *dev,
+ struct device_node *np, int idx)
{
return -ENOSYS;
}
const char *uname, phys_addr_t base, phys_addr_t size) { }
#endif
+ /**
+ * of_reserved_mem_device_init() - assign reserved memory region to given device
+ * @dev: Pointer to the device to configure
+ *
+ * This function assigns respective DMA-mapping operations based on the first
+ * reserved memory region specified by 'memory-region' property in device tree
+ * node of the given device.
+ *
+ * Returns error code or zero on success.
+ */
+ static inline int of_reserved_mem_device_init(struct device *dev)
+ {
+ return of_reserved_mem_device_init_by_idx(dev, dev->of_node, 0);
+ }
+
#endif /* __OF_RESERVED_MEM_H */
projects / cascardo / linux.git / commitdiff