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authorOlof Johansson <olof@lixom.net>2015-04-03 13:40:34 -0700
committerOlof Johansson <olof@lixom.net>2015-04-03 13:40:34 -0700
commit77e3c09e451ae78b64f7b89fc1690804da726787 (patch)
tree1abe2bd35f4750108c5335250174315c0e46f719 /arch
parentdc0961bc816b9365cb37a68b34e84b625f7c7f0f (diff)
parent209431eff8afb928d72200c79153165c7d860ca0 (diff)
downloadblackbird-obmc-linux-77e3c09e451ae78b64f7b89fc1690804da726787.tar.gz
blackbird-obmc-linux-77e3c09e451ae78b64f7b89fc1690804da726787.zip
Merge tag 'omap-for-v4.1/fixes-0' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical
Merge "omap non-urgent fixes for v4.1" from Tony Lindgren: Fixes for omaps that were not considered urgent enough for the -rc cycle. This is mostly to enable errata 798181 and thermal support for dra7, configure ocp2scp for am437x, remove dead code for OMAP4_ERRATA_I688 and fix build warnings for omap1510 only config. * tag 'omap-for-v4.1/fixes-0' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: DRA7: Enable Cortex A15 errata 798181 ARM: dts: am57xx-beagle-x15: Add thermal map to include fan and tmp102 ARM: dts: DRA7: Add bandgap and related thermal nodes bus: ocp2scp: SYNC2 value should be changed to 0x6 ARM: dts: am4372: Add "ti,am437x-ocp2scp" as compatible string for OCP2SCP ARM: OMAP2+: remove superfluous NULL pointer check ARM: OMAP4: remove dead kconfig option OMAP4_ERRATA_I688 MAINTAINERS: add OMAP defconfigs under OMAP SUPPORT ARM: OMAP1: PM: fix some build warnings on 1510-only Kconfigs Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/boot/dts/am4372.dtsi4
-rw-r--r--arch/arm/boot/dts/am57xx-beagle-x15.dts49
-rw-r--r--arch/arm/boot/dts/dra7.dtsi23
-rw-r--r--arch/arm/boot/dts/dra72x.dtsi5
-rw-r--r--arch/arm/boot/dts/dra74x.dtsi5
-rw-r--r--arch/arm/boot/dts/omap4-cpu-thermal.dtsi4
-rw-r--r--arch/arm/mach-omap1/pm.c51
-rw-r--r--arch/arm/mach-omap2/Kconfig22
-rw-r--r--arch/arm/mach-omap2/common.c1
-rw-r--r--arch/arm/mach-omap2/common.h3
-rw-r--r--arch/arm/mach-omap2/io.c2
-rw-r--r--arch/arm/mach-omap2/mux.c2
-rw-r--r--arch/arm/mach-omap2/omap-secure.h7
-rw-r--r--arch/arm/mach-omap2/omap4-common.c69
-rw-r--r--arch/arm/mach-omap2/sleep44xx.S2
15 files changed, 113 insertions, 136 deletions
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 1943fc333e7c..286e31790e29 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -787,7 +787,7 @@
};
ocp2scp0: ocp2scp@483a8000 {
- compatible = "ti,omap-ocp2scp";
+ compatible = "ti,am437x-ocp2scp", "ti,omap-ocp2scp";
#address-cells = <1>;
#size-cells = <1>;
ranges;
@@ -806,7 +806,7 @@
};
ocp2scp1: ocp2scp@483e8000 {
- compatible = "ti,omap-ocp2scp";
+ compatible = "ti,am437x-ocp2scp", "ti,omap-ocp2scp";
#address-cells = <1>;
#size-cells = <1>;
ranges;
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 6463f9ef2b54..31497a45afb0 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -87,6 +87,7 @@
gpios = <&tps659038_gpio 1 GPIO_ACTIVE_HIGH>;
gpio-fan,speed-map = <0 0>,
<13000 1>;
+ #cooling-cells = <2>;
};
extcon_usb1: extcon_usb1 {
@@ -442,6 +443,7 @@
pinctrl-0 = <&tmp102_pins_default>;
interrupt-parent = <&gpio7>;
interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
+ #thermal-sensor-cells = <1>;
};
};
@@ -552,3 +554,50 @@
&usb2 {
dr_mode = "peripheral";
};
+
+&cpu_trips {
+ cpu_alert1: cpu_alert1 {
+ temperature = <50000>; /* millicelsius */
+ hysteresis = <2000>; /* millicelsius */
+ type = "active";
+ };
+};
+
+&cpu_cooling_maps {
+ map1 {
+ trip = <&cpu_alert1>;
+ cooling-device = <&gpio_fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+};
+
+&thermal_zones {
+ board_thermal: board_thermal {
+ polling-delay-passive = <1250>; /* milliseconds */
+ polling-delay = <1500>; /* milliseconds */
+
+ /* sensor ID */
+ thermal-sensors = <&tmp102 0>;
+
+ board_trips: trips {
+ board_alert0: board_alert {
+ temperature = <40000>; /* millicelsius */
+ hysteresis = <2000>; /* millicelsius */
+ type = "active";
+ };
+
+ board_crit: board_crit {
+ temperature = <105000>; /* millicelsius */
+ hysteresis = <0>; /* millicelsius */
+ type = "critical";
+ };
+ };
+
+ board_cooling_maps: cooling-maps {
+ map0 {
+ trip = <&board_alert0>;
+ cooling-device =
+ <&gpio_fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 127608d79033..871e0882f631 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -177,6 +177,18 @@
};
};
+ bandgap: bandgap@4a0021e0 {
+ reg = <0x4a0021e0 0xc
+ 0x4a00232c 0xc
+ 0x4a002380 0x2c
+ 0x4a0023C0 0x3c
+ 0x4a002564 0x8
+ 0x4a002574 0x50>;
+ compatible = "ti,dra752-bandgap";
+ interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+ #thermal-sensor-cells = <1>;
+ };
+
cm_core_aon: cm_core_aon@4a005000 {
compatible = "ti,dra7-cm-core-aon";
reg = <0x4a005000 0x2000>;
@@ -1426,6 +1438,17 @@
status = "disabled";
};
};
+
+ thermal_zones: thermal-zones {
+ #include "omap4-cpu-thermal.dtsi"
+ #include "omap5-gpu-thermal.dtsi"
+ #include "omap5-core-thermal.dtsi"
+ };
+
+};
+
+&cpu_thermal {
+ polling-delay = <500>; /* milliseconds */
};
/include/ "dra7xx-clocks.dtsi"
diff --git a/arch/arm/boot/dts/dra72x.dtsi b/arch/arm/boot/dts/dra72x.dtsi
index e5a3d23a3df1..6ac8e3601499 100644
--- a/arch/arm/boot/dts/dra72x.dtsi
+++ b/arch/arm/boot/dts/dra72x.dtsi
@@ -20,6 +20,11 @@
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <0>;
+
+ /* cooling options */
+ cooling-min-level = <0>;
+ cooling-max-level = <2>;
+ #cooling-cells = <2>; /* min followed by max */
};
};
diff --git a/arch/arm/boot/dts/dra74x.dtsi b/arch/arm/boot/dts/dra74x.dtsi
index 10173fab1a15..eef981f4bcd5 100644
--- a/arch/arm/boot/dts/dra74x.dtsi
+++ b/arch/arm/boot/dts/dra74x.dtsi
@@ -31,6 +31,11 @@
clock-names = "cpu";
clock-latency = <300000>; /* From omap-cpufreq driver */
+
+ /* cooling options */
+ cooling-min-level = <0>;
+ cooling-max-level = <2>;
+ #cooling-cells = <2>; /* min followed by max */
};
cpu@1 {
device_type = "cpu";
diff --git a/arch/arm/boot/dts/omap4-cpu-thermal.dtsi b/arch/arm/boot/dts/omap4-cpu-thermal.dtsi
index cb9458feb2e3..ab7f87ae96f0 100644
--- a/arch/arm/boot/dts/omap4-cpu-thermal.dtsi
+++ b/arch/arm/boot/dts/omap4-cpu-thermal.dtsi
@@ -18,7 +18,7 @@ cpu_thermal: cpu_thermal {
/* sensor ID */
thermal-sensors = <&bandgap 0>;
- trips {
+ cpu_trips: trips {
cpu_alert0: cpu_alert {
temperature = <100000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
@@ -31,7 +31,7 @@ cpu_thermal: cpu_thermal {
};
};
- cooling-maps {
+ cpu_cooling_maps: cooling-maps {
map0 {
trip = <&cpu_alert0>;
cooling-device =
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index 34b4c0044961..dd94567c3628 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -71,13 +71,7 @@ static unsigned int mpui7xx_sleep_save[MPUI7XX_SLEEP_SAVE_SIZE];
static unsigned int mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_SIZE];
static unsigned int mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_SIZE];
-#ifndef CONFIG_OMAP_32K_TIMER
-
-static unsigned short enable_dyn_sleep = 0;
-
-#else
-
-static unsigned short enable_dyn_sleep = 1;
+static unsigned short enable_dyn_sleep;
static ssize_t idle_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
@@ -90,8 +84,9 @@ static ssize_t idle_store(struct kobject *kobj, struct kobj_attribute *attr,
{
unsigned short value;
if (sscanf(buf, "%hu", &value) != 1 ||
- (value != 0 && value != 1)) {
- printk(KERN_ERR "idle_sleep_store: Invalid value\n");
+ (value != 0 && value != 1) ||
+ (value != 0 && !IS_ENABLED(CONFIG_OMAP_32K_TIMER))) {
+ pr_err("idle_sleep_store: Invalid value\n");
return -EINVAL;
}
enable_dyn_sleep = value;
@@ -101,7 +96,6 @@ static ssize_t idle_store(struct kobject *kobj, struct kobj_attribute *attr,
static struct kobj_attribute sleep_while_idle_attr =
__ATTR(sleep_while_idle, 0644, idle_show, idle_store);
-#endif
static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL;
@@ -115,16 +109,11 @@ void omap1_pm_idle(void)
{
extern __u32 arm_idlect1_mask;
__u32 use_idlect1 = arm_idlect1_mask;
- int do_sleep = 0;
local_fiq_disable();
#if defined(CONFIG_OMAP_MPU_TIMER) && !defined(CONFIG_OMAP_DM_TIMER)
-#warning Enable 32kHz OS timer in order to allow sleep states in idle
use_idlect1 = use_idlect1 & ~(1 << 9);
-#else
- if (enable_dyn_sleep)
- do_sleep = 1;
#endif
#ifdef CONFIG_OMAP_DM_TIMER
@@ -134,10 +123,12 @@ void omap1_pm_idle(void)
if (omap_dma_running())
use_idlect1 &= ~(1 << 6);
- /* We should be able to remove the do_sleep variable and multiple
+ /*
+ * We should be able to remove the do_sleep variable and multiple
* tests above as soon as drivers, timer and DMA code have been fixed.
- * Even the sleep block count should become obsolete. */
- if ((use_idlect1 != ~0) || !do_sleep) {
+ * Even the sleep block count should become obsolete.
+ */
+ if ((use_idlect1 != ~0) || !enable_dyn_sleep) {
__u32 saved_idlect1 = omap_readl(ARM_IDLECT1);
if (cpu_is_omap15xx())
@@ -635,15 +626,25 @@ static const struct platform_suspend_ops omap_pm_ops = {
static int __init omap_pm_init(void)
{
-
-#ifdef CONFIG_OMAP_32K_TIMER
- int error;
-#endif
+ int error = 0;
if (!cpu_class_is_omap1())
return -ENODEV;
- printk("Power Management for TI OMAP.\n");
+ pr_info("Power Management for TI OMAP.\n");
+
+ if (!IS_ENABLED(CONFIG_OMAP_32K_TIMER))
+ pr_info("OMAP1 PM: sleep states in idle disabled due to no 32KiHz timer\n");
+
+ if (!IS_ENABLED(CONFIG_OMAP_DM_TIMER))
+ pr_info("OMAP1 PM: sleep states in idle disabled due to no DMTIMER support\n");
+
+ if (IS_ENABLED(CONFIG_OMAP_32K_TIMER) &&
+ IS_ENABLED(CONFIG_OMAP_DM_TIMER)) {
+ /* OMAP16xx only */
+ pr_info("OMAP1 PM: sleep states in idle enabled\n");
+ enable_dyn_sleep = 1;
+ }
/*
* We copy the assembler sleep/wakeup routines to SRAM.
@@ -693,17 +694,15 @@ static int __init omap_pm_init(void)
omap_pm_init_debugfs();
#endif
-#ifdef CONFIG_OMAP_32K_TIMER
error = sysfs_create_file(power_kobj, &sleep_while_idle_attr.attr);
if (error)
printk(KERN_ERR "sysfs_create_file failed: %d\n", error);
-#endif
if (cpu_is_omap16xx()) {
/* configure LOW_PWR pin */
omap_cfg_reg(T20_1610_LOW_PWR);
}
- return 0;
+ return error;
}
__initcall(omap_pm_init);
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 2b8e47788062..1041b19485ab 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -69,6 +69,7 @@ config SOC_DRA7XX
select ARM_GIC
select HAVE_ARM_ARCH_TIMER
select IRQ_CROSSBAR
+ select ARM_ERRATA_798181 if SMP
config ARCH_OMAP2PLUS
bool
@@ -278,27 +279,6 @@ config OMAP3_SDRC_AC_TIMING
wish to say no. Selecting yes without understanding what is
going on could result in system crashes;
-config OMAP4_ERRATA_I688
- bool "OMAP4 errata: Async Bridge Corruption"
- depends on (ARCH_OMAP4 || SOC_OMAP5) && !ARCH_MULTIPLATFORM
- select ARCH_HAS_BARRIERS
- help
- If a data is stalled inside asynchronous bridge because of back
- pressure, it may be accepted multiple times, creating pointer
- misalignment that will corrupt next transfers on that data path
- until next reset of the system (No recovery procedure once the
- issue is hit, the path remains consistently broken). Async bridge
- can be found on path between MPU to EMIF and MPU to L3 interconnect.
- This situation can happen only when the idle is initiated by a
- Master Request Disconnection (which is trigged by software when
- executing WFI on CPU).
- The work-around for this errata needs all the initiators connected
- through async bridge must ensure that data path is properly drained
- before issuing WFI. This condition will be met if one Strongly ordered
- access is performed to the target right before executing the WFI.
- In MPU case, L3 T2ASYNC FIFO and DDR T2ASYNC FIFO needs to be drained.
- IO barrier ensure that there is no synchronisation loss on initiators
- operating on both interconnect port simultaneously.
endmenu
endif
diff --git a/arch/arm/mach-omap2/common.c b/arch/arm/mach-omap2/common.c
index 484cdadfb187..eae6a0e87c90 100644
--- a/arch/arm/mach-omap2/common.c
+++ b/arch/arm/mach-omap2/common.c
@@ -30,5 +30,4 @@ int __weak omap_secure_ram_reserve_memblock(void)
void __init omap_reserve(void)
{
omap_secure_ram_reserve_memblock();
- omap_barrier_reserve_memblock();
}
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 46e24581d624..cf3cf22ecd42 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -200,9 +200,6 @@ void __init omap4_map_io(void);
void __init omap5_map_io(void);
void __init ti81xx_map_io(void);
-/* omap_barriers_init() is OMAP4 only */
-void omap_barriers_init(void);
-
/**
* omap_test_timeout - busy-loop, testing a condition
* @cond: condition to test until it evaluates to true
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index c4871c55bd8b..1eeff6be260d 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -306,7 +306,6 @@ void __init am33xx_map_io(void)
void __init omap4_map_io(void)
{
iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
- omap_barriers_init();
}
#endif
@@ -314,7 +313,6 @@ void __init omap4_map_io(void)
void __init omap5_map_io(void)
{
iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc));
- omap_barriers_init();
}
#endif
/*
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index 78064b0d4db5..176eef6ef338 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -1053,7 +1053,7 @@ static void __init omap_mux_init_list(struct omap_mux_partition *partition,
struct omap_mux *entry;
#ifdef CONFIG_OMAP_MUX
- if (!superset->muxnames || !superset->muxnames[0]) {
+ if (!superset->muxnames[0]) {
superset++;
continue;
}
diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h
index dec2b05d184b..af2851fbcdf0 100644
--- a/arch/arm/mach-omap2/omap-secure.h
+++ b/arch/arm/mach-omap2/omap-secure.h
@@ -70,13 +70,6 @@ extern u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
extern u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits);
extern u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag);
-#ifdef CONFIG_OMAP4_ERRATA_I688
-extern int omap_barrier_reserve_memblock(void);
-#else
-static inline void omap_barrier_reserve_memblock(void)
-{ }
-#endif
-
#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
void set_cntfreq(void);
#else
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index cee0fe1ee6ff..afaac9e25764 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -52,75 +52,6 @@ static void __iomem *twd_base;
#define IRQ_LOCALTIMER 29
-#ifdef CONFIG_OMAP4_ERRATA_I688
-/* Used to implement memory barrier on DRAM path */
-#define OMAP4_DRAM_BARRIER_VA 0xfe600000
-
-void __iomem *dram_sync, *sram_sync;
-
-static phys_addr_t paddr;
-static u32 size;
-
-void omap_bus_sync(void)
-{
- if (dram_sync && sram_sync) {
- writel_relaxed(readl_relaxed(dram_sync), dram_sync);
- writel_relaxed(readl_relaxed(sram_sync), sram_sync);
- isb();
- }
-}
-EXPORT_SYMBOL(omap_bus_sync);
-
-static int __init omap4_sram_init(void)
-{
- struct device_node *np;
- struct gen_pool *sram_pool;
-
- np = of_find_compatible_node(NULL, NULL, "ti,omap4-mpu");
- if (!np)
- pr_warn("%s:Unable to allocate sram needed to handle errata I688\n",
- __func__);
- sram_pool = of_get_named_gen_pool(np, "sram", 0);
- if (!sram_pool)
- pr_warn("%s:Unable to get sram pool needed to handle errata I688\n",
- __func__);
- else
- sram_sync = (void *)gen_pool_alloc(sram_pool, PAGE_SIZE);
-
- return 0;
-}
-omap_arch_initcall(omap4_sram_init);
-
-/* Steal one page physical memory for barrier implementation */
-int __init omap_barrier_reserve_memblock(void)
-{
-
- size = ALIGN(PAGE_SIZE, SZ_1M);
- paddr = arm_memblock_steal(size, SZ_1M);
-
- return 0;
-}
-
-void __init omap_barriers_init(void)
-{
- struct map_desc dram_io_desc[1];
-
- dram_io_desc[0].virtual = OMAP4_DRAM_BARRIER_VA;
- dram_io_desc[0].pfn = __phys_to_pfn(paddr);
- dram_io_desc[0].length = size;
- dram_io_desc[0].type = MT_MEMORY_RW_SO;
- iotable_init(dram_io_desc, ARRAY_SIZE(dram_io_desc));
- dram_sync = (void __iomem *) dram_io_desc[0].virtual;
-
- pr_info("OMAP4: Map 0x%08llx to 0x%08lx for dram barrier\n",
- (long long) paddr, dram_io_desc[0].virtual);
-
-}
-#else
-void __init omap_barriers_init(void)
-{}
-#endif
-
void gic_dist_disable(void)
{
if (gic_dist_base_addr)
diff --git a/arch/arm/mach-omap2/sleep44xx.S b/arch/arm/mach-omap2/sleep44xx.S
index b84a0122d823..ad1bb9431e94 100644
--- a/arch/arm/mach-omap2/sleep44xx.S
+++ b/arch/arm/mach-omap2/sleep44xx.S
@@ -333,11 +333,9 @@ ENDPROC(omap4_cpu_resume)
#endif /* defined(CONFIG_SMP) && defined(CONFIG_PM) */
-#ifndef CONFIG_OMAP4_ERRATA_I688
ENTRY(omap_bus_sync)
ret lr
ENDPROC(omap_bus_sync)
-#endif
ENTRY(omap_do_wfi)
stmfd sp!, {lr}
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