summaryrefslogtreecommitdiff
path: root/arch/arm
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/boot/dts/exynos5250.dtsi5
-rw-r--r--arch/arm/boot/dts/integratorcp.dts9
-rw-r--r--arch/arm/boot/dts/omap3-beagle-xm.dts2
-rw-r--r--arch/arm/boot/dts/omap3.dtsi4
-rw-r--r--arch/arm/common/mcpm_entry.c6
-rw-r--r--arch/arm/common/sharpsl_param.c5
-rw-r--r--arch/arm/include/asm/Kbuild1
-rw-r--r--arch/arm/include/asm/mcpm.h14
-rw-r--r--arch/arm/include/asm/syscall.h6
-rw-r--r--arch/arm/kernel/head.S21
-rw-r--r--arch/arm/mach-omap2/board-generic.c18
-rw-r--r--arch/arm/mach-omap2/board-rx51-peripherals.c9
-rw-r--r--arch/arm/mach-omap2/gpmc-onenand.c12
-rw-r--r--arch/arm/mach-omap2/mux.h4
-rw-r--r--arch/arm/mach-omap2/timer.c4
-rw-r--r--arch/arm/mm/dma-mapping.c43
-rw-r--r--arch/arm/mm/init.c3
-rw-r--r--arch/arm/net/bpf_jit_32.c1
18 files changed, 126 insertions, 41 deletions
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 7d7cc77..bbac42a 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -96,6 +96,11 @@
<1 14 0xf08>,
<1 11 0xf08>,
<1 10 0xf08>;
+ /* Unfortunately we need this since some versions of U-Boot
+ * on Exynos don't set the CNTFRQ register, so we need the
+ * value from DT.
+ */
+ clock-frequency = <24000000>;
};
mct@101C0000 {
diff --git a/arch/arm/boot/dts/integratorcp.dts b/arch/arm/boot/dts/integratorcp.dts
index ff1aea0..72693a6 100644
--- a/arch/arm/boot/dts/integratorcp.dts
+++ b/arch/arm/boot/dts/integratorcp.dts
@@ -9,11 +9,6 @@
model = "ARM Integrator/CP";
compatible = "arm,integrator-cp";
- aliases {
- arm,timer-primary = &timer2;
- arm,timer-secondary = &timer1;
- };
-
chosen {
bootargs = "root=/dev/ram0 console=ttyAMA0,38400n8 earlyprintk";
};
@@ -24,14 +19,18 @@
};
timer0: timer@13000000 {
+ /* TIMER0 runs @ 25MHz */
compatible = "arm,integrator-cp-timer";
+ status = "disabled";
};
timer1: timer@13000100 {
+ /* TIMER1 runs @ 1MHz */
compatible = "arm,integrator-cp-timer";
};
timer2: timer@13000200 {
+ /* TIMER2 runs @ 1MHz */
compatible = "arm,integrator-cp-timer";
};
diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts
index 0c514dc..2816bf6 100644
--- a/arch/arm/boot/dts/omap3-beagle-xm.dts
+++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
@@ -11,7 +11,7 @@
/ {
model = "TI OMAP3 BeagleBoard xM";
- compatible = "ti,omap3-beagle-xm", "ti,omap3-beagle", "ti,omap3";
+ compatible = "ti,omap3-beagle-xm", "ti,omap36xx", "ti,omap3";
cpus {
cpu@0 {
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 7d95cda..b41bd57 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -108,7 +108,7 @@
#address-cells = <1>;
#size-cells = <0>;
pinctrl-single,register-width = <16>;
- pinctrl-single,function-mask = <0x7f1f>;
+ pinctrl-single,function-mask = <0xff1f>;
};
omap3_pmx_wkup: pinmux@0x48002a00 {
@@ -117,7 +117,7 @@
#address-cells = <1>;
#size-cells = <0>;
pinctrl-single,register-width = <16>;
- pinctrl-single,function-mask = <0x7f1f>;
+ pinctrl-single,function-mask = <0xff1f>;
};
gpio1: gpio@48310000 {
diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index 370236d..9902509 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -51,7 +51,8 @@ void mcpm_cpu_power_down(void)
{
phys_reset_t phys_reset;
- BUG_ON(!platform_ops);
+ if (WARN_ON_ONCE(!platform_ops || !platform_ops->power_down))
+ return;
BUG_ON(!irqs_disabled());
/*
@@ -93,7 +94,8 @@ void mcpm_cpu_suspend(u64 expected_residency)
{
phys_reset_t phys_reset;
- BUG_ON(!platform_ops);
+ if (WARN_ON_ONCE(!platform_ops || !platform_ops->suspend))
+ return;
BUG_ON(!irqs_disabled());
/* Very similar to mcpm_cpu_power_down() */
diff --git a/arch/arm/common/sharpsl_param.c b/arch/arm/common/sharpsl_param.c
index d56c932..025f6ce 100644
--- a/arch/arm/common/sharpsl_param.c
+++ b/arch/arm/common/sharpsl_param.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/string.h>
#include <asm/mach/sharpsl_param.h>
+#include <asm/memory.h>
/*
* Certain hardware parameters determined at the time of device manufacture,
@@ -25,8 +26,10 @@
*/
#ifdef CONFIG_ARCH_SA1100
#define PARAM_BASE 0xe8ffc000
+#define param_start(x) (void *)(x)
#else
#define PARAM_BASE 0xa0000a00
+#define param_start(x) __va(x)
#endif
#define MAGIC_CHG(a,b,c,d) ( ( d << 24 ) | ( c << 16 ) | ( b << 8 ) | a )
@@ -41,7 +44,7 @@ EXPORT_SYMBOL(sharpsl_param);
void sharpsl_save_param(void)
{
- memcpy(&sharpsl_param, (void *)PARAM_BASE, sizeof(struct sharpsl_param_info));
+ memcpy(&sharpsl_param, param_start(PARAM_BASE), sizeof(struct sharpsl_param_info));
if (sharpsl_param.comadj_keyword != COMADJ_MAGIC)
sharpsl_param.comadj=-1;
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index 4e6838d..1a7024b 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -31,6 +31,5 @@ generic-y += termbits.h
generic-y += termios.h
generic-y += timex.h
generic-y += trace_clock.h
-generic-y += types.h
generic-y += unaligned.h
generic-y += preempt.h
diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h
index 0f7b762..fc82a88 100644
--- a/arch/arm/include/asm/mcpm.h
+++ b/arch/arm/include/asm/mcpm.h
@@ -76,8 +76,11 @@ int mcpm_cpu_power_up(unsigned int cpu, unsigned int cluster);
*
* This must be called with interrupts disabled.
*
- * This does not return. Re-entry in the kernel is expected via
- * mcpm_entry_point.
+ * On success this does not return. Re-entry in the kernel is expected
+ * via mcpm_entry_point.
+ *
+ * This will return if mcpm_platform_register() has not been called
+ * previously in which case the caller should take appropriate action.
*/
void mcpm_cpu_power_down(void);
@@ -98,8 +101,11 @@ void mcpm_cpu_power_down(void);
*
* This must be called with interrupts disabled.
*
- * This does not return. Re-entry in the kernel is expected via
- * mcpm_entry_point.
+ * On success this does not return. Re-entry in the kernel is expected
+ * via mcpm_entry_point.
+ *
+ * This will return if mcpm_platform_register() has not been called
+ * previously in which case the caller should take appropriate action.
*/
void mcpm_cpu_suspend(u64 expected_residency);
diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h
index f1d96d4..73ddd72 100644
--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -57,6 +57,9 @@ static inline void syscall_get_arguments(struct task_struct *task,
unsigned int i, unsigned int n,
unsigned long *args)
{
+ if (n == 0)
+ return;
+
if (i + n > SYSCALL_MAX_ARGS) {
unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i;
unsigned int n_bad = n + i - SYSCALL_MAX_ARGS;
@@ -81,6 +84,9 @@ static inline void syscall_set_arguments(struct task_struct *task,
unsigned int i, unsigned int n,
const unsigned long *args)
{
+ if (n == 0)
+ return;
+
if (i + n > SYSCALL_MAX_ARGS) {
pr_warning("%s called with max args %d, handling only %d\n",
__func__, i + n, SYSCALL_MAX_ARGS);
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 2c7cc1e..476de57 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -487,7 +487,26 @@ __fixup_smp:
mrc p15, 0, r0, c0, c0, 5 @ read MPIDR
and r0, r0, #0xc0000000 @ multiprocessing extensions and
teq r0, #0x80000000 @ not part of a uniprocessor system?
- moveq pc, lr @ yes, assume SMP
+ bne __fixup_smp_on_up @ no, assume UP
+
+ @ Core indicates it is SMP. Check for Aegis SOC where a single
+ @ Cortex-A9 CPU is present but SMP operations fault.
+ mov r4, #0x41000000
+ orr r4, r4, #0x0000c000
+ orr r4, r4, #0x00000090
+ teq r3, r4 @ Check for ARM Cortex-A9
+ movne pc, lr @ Not ARM Cortex-A9,
+
+ @ If a future SoC *does* use 0x0 as the PERIPH_BASE, then the
+ @ below address check will need to be #ifdef'd or equivalent
+ @ for the Aegis platform.
+ mrc p15, 4, r0, c15, c0 @ get SCU base address
+ teq r0, #0x0 @ '0' on actual UP A9 hardware
+ beq __fixup_smp_on_up @ So its an A9 UP
+ ldr r0, [r0, #4] @ read SCU Config
+ and r0, r0, #0x3 @ number of CPUs
+ teq r0, #0x0 @ is 1?
+ movne pc, lr
__fixup_smp_on_up:
adr r0, 1f
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 39c7838..87162e1 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -129,6 +129,24 @@ DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
.restart = omap3xxx_restart,
MACHINE_END
+static const char *omap36xx_boards_compat[] __initdata = {
+ "ti,omap36xx",
+ NULL,
+};
+
+DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)")
+ .reserve = omap_reserve,
+ .map_io = omap3_map_io,
+ .init_early = omap3630_init_early,
+ .init_irq = omap_intc_of_init,
+ .handle_irq = omap3_intc_handle_irq,
+ .init_machine = omap_generic_init,
+ .init_late = omap3_init_late,
+ .init_time = omap3_sync32k_timer_init,
+ .dt_compat = omap36xx_boards_compat,
+ .restart = omap3xxx_restart,
+MACHINE_END
+
static const char *omap3_gp_boards_compat[] __initdata = {
"ti,omap3-beagle",
"timll,omap3-devkit8000",
diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index c3270c0..f6fe388 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -167,38 +167,47 @@ static struct lp55xx_led_config rx51_lp5523_led_config[] = {
.name = "lp5523:kb1",
.chan_nr = 0,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:kb2",
.chan_nr = 1,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:kb3",
.chan_nr = 2,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:kb4",
.chan_nr = 3,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:b",
.chan_nr = 4,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:g",
.chan_nr = 5,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:r",
.chan_nr = 6,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:kb5",
.chan_nr = 7,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:kb6",
.chan_nr = 8,
.led_current = 50,
+ .max_current = 100,
}
};
diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c
index 64b5a83..8b6876c 100644
--- a/arch/arm/mach-omap2/gpmc-onenand.c
+++ b/arch/arm/mach-omap2/gpmc-onenand.c
@@ -272,9 +272,19 @@ static int omap2_onenand_setup_async(void __iomem *onenand_base)
struct gpmc_timings t;
int ret;
- if (gpmc_onenand_data->of_node)
+ if (gpmc_onenand_data->of_node) {
gpmc_read_settings_dt(gpmc_onenand_data->of_node,
&onenand_async);
+ if (onenand_async.sync_read || onenand_async.sync_write) {
+ if (onenand_async.sync_write)
+ gpmc_onenand_data->flags |=
+ ONENAND_SYNC_READWRITE;
+ else
+ gpmc_onenand_data->flags |= ONENAND_SYNC_READ;
+ onenand_async.sync_read = false;
+ onenand_async.sync_write = false;
+ }
+ }
omap2_onenand_set_async_mode(onenand_base);
diff --git a/arch/arm/mach-omap2/mux.h b/arch/arm/mach-omap2/mux.h
index 5d2080e..16f78a9 100644
--- a/arch/arm/mach-omap2/mux.h
+++ b/arch/arm/mach-omap2/mux.h
@@ -28,7 +28,7 @@
#define OMAP_PULL_UP (1 << 4)
#define OMAP_ALTELECTRICALSEL (1 << 5)
-/* 34xx specific mux bit defines */
+/* omap3/4/5 specific mux bit defines */
#define OMAP_INPUT_EN (1 << 8)
#define OMAP_OFF_EN (1 << 9)
#define OMAP_OFFOUT_EN (1 << 10)
@@ -36,8 +36,6 @@
#define OMAP_OFF_PULL_EN (1 << 12)
#define OMAP_OFF_PULL_UP (1 << 13)
#define OMAP_WAKEUP_EN (1 << 14)
-
-/* 44xx specific mux bit defines */
#define OMAP_WAKEUP_EVENT (1 << 15)
/* Active pin states */
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index fa74a06..ead48fa 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -628,7 +628,7 @@ void __init omap4_local_timer_init(void)
#endif /* CONFIG_HAVE_ARM_TWD */
#endif /* CONFIG_ARCH_OMAP4 */
-#ifdef CONFIG_SOC_OMAP5
+#if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
void __init omap5_realtime_timer_init(void)
{
omap4_sync32k_timer_init();
@@ -636,7 +636,7 @@ void __init omap5_realtime_timer_init(void)
clocksource_of_init();
}
-#endif /* CONFIG_SOC_OMAP5 */
+#endif /* CONFIG_SOC_OMAP5 || CONFIG_SOC_DRA7XX */
/**
* omap_timer_init - build and register timer device with an
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index f5e1a84..1272ed2 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1232,7 +1232,8 @@ __iommu_create_mapping(struct device *dev, struct page **pages, size_t size)
break;
len = (j - i) << PAGE_SHIFT;
- ret = iommu_map(mapping->domain, iova, phys, len, 0);
+ ret = iommu_map(mapping->domain, iova, phys, len,
+ IOMMU_READ|IOMMU_WRITE);
if (ret < 0)
goto fail;
iova += len;
@@ -1431,6 +1432,27 @@ static int arm_iommu_get_sgtable(struct device *dev, struct sg_table *sgt,
GFP_KERNEL);
}
+static int __dma_direction_to_prot(enum dma_data_direction dir)
+{
+ int prot;
+
+ switch (dir) {
+ case DMA_BIDIRECTIONAL:
+ prot = IOMMU_READ | IOMMU_WRITE;
+ break;
+ case DMA_TO_DEVICE:
+ prot = IOMMU_READ;
+ break;
+ case DMA_FROM_DEVICE:
+ prot = IOMMU_WRITE;
+ break;
+ default:
+ prot = 0;
+ }
+
+ return prot;
+}
+
/*
* Map a part of the scatter-gather list into contiguous io address space
*/
@@ -1444,6 +1466,7 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
int ret = 0;
unsigned int count;
struct scatterlist *s;
+ int prot;
size = PAGE_ALIGN(size);
*handle = DMA_ERROR_CODE;
@@ -1460,7 +1483,9 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
__dma_page_cpu_to_dev(sg_page(s), s->offset, s->length, dir);
- ret = iommu_map(mapping->domain, iova, phys, len, 0);
+ prot = __dma_direction_to_prot(dir);
+
+ ret = iommu_map(mapping->domain, iova, phys, len, prot);
if (ret < 0)
goto fail;
count += len >> PAGE_SHIFT;
@@ -1665,19 +1690,7 @@ static dma_addr_t arm_coherent_iommu_map_page(struct device *dev, struct page *p
if (dma_addr == DMA_ERROR_CODE)
return dma_addr;
- switch (dir) {
- case DMA_BIDIRECTIONAL:
- prot = IOMMU_READ | IOMMU_WRITE;
- break;
- case DMA_TO_DEVICE:
- prot = IOMMU_READ;
- break;
- case DMA_FROM_DEVICE:
- prot = IOMMU_WRITE;
- break;
- default:
- prot = 0;
- }
+ prot = __dma_direction_to_prot(dir);
ret = iommu_map(mapping->domain, dma_addr, page_to_phys(page), len, prot);
if (ret < 0)
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index febaee7..18ec4c5 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -17,7 +17,6 @@
#include <linux/nodemask.h>
#include <linux/initrd.h>
#include <linux/of_fdt.h>
-#include <linux/of_reserved_mem.h>
#include <linux/highmem.h>
#include <linux/gfp.h>
#include <linux/memblock.h>
@@ -379,8 +378,6 @@ void __init arm_memblock_init(struct meminfo *mi,
if (mdesc->reserve)
mdesc->reserve();
- early_init_dt_scan_reserved_mem();
-
/*
* reserve memory for DMA contigouos allocations,
* must come from DMA area inside low memory
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index f50d223..99b44e0 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -930,4 +930,5 @@ void bpf_jit_free(struct sk_filter *fp)
{
if (fp->bpf_func != sk_run_filter)
module_free(NULL, fp->bpf_func);
+ kfree(fp);
}