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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-12 15:26:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-12 15:26:39 -0800
commit7dac7102afbeb99daa454f555f1ea1f42fad2f78 (patch)
tree024bf6c2ed2fa46cab610e6012bd3dd5f45da182
parent3370b69eb0c1f6a05f9051e8fc3e8768461a80f7 (diff)
parentf639eeb4a60ce39f154753e3a745bd755e0fe084 (diff)
Merge tag 'for-4.4' of git://git.osdn.jp/gitroot/uclinux-h8/linux
Pull h8300 updates from Yoshinori Sato: "Some bug fixes" * tag 'for-4.4' of git://git.osdn.jp/gitroot/uclinux-h8/linux: h8300: enable CLKSRC_OF h8300: Don't set CROSS_COMPILE unconditionally asm-generic: {get,put}_user ptr argument evaluate only 1 time h8300: bit io fix h8300: zImage fix h8300: register address fix h8300: Fix alignment for .data h8300: unaligned divcr register support.
-rw-r--r--arch/h8300/Kconfig1
-rw-r--r--arch/h8300/Makefile2
-rw-r--r--arch/h8300/boot/compressed/Makefile5
-rw-r--r--arch/h8300/boot/compressed/head.S4
-rw-r--r--arch/h8300/boot/compressed/misc.c7
-rw-r--r--arch/h8300/boot/compressed/vmlinux.lds2
-rw-r--r--arch/h8300/boot/dts/edosk2674.dts6
-rw-r--r--arch/h8300/include/asm/io.h12
-rw-r--r--arch/h8300/include/asm/thread_info.h14
-rw-r--r--arch/h8300/kernel/setup.c2
-rw-r--r--arch/h8300/kernel/vmlinux.lds.S4
-rw-r--r--drivers/clk/h8300/clk-div.c6
-rw-r--r--include/asm-generic/uaccess.h10
13 files changed, 40 insertions, 35 deletions
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index db589167838c..dd3ac75776ad 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -16,6 +16,7 @@ config H8300
select OF_EARLY_FLATTREE
select HAVE_MEMBLOCK
select HAVE_DMA_ATTRS
+ select CLKSRC_OF
config RWSEM_GENERIC_SPINLOCK
def_bool y
diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile
index 0d2d96e52d9f..e1c02ca230cb 100644
--- a/arch/h8300/Makefile
+++ b/arch/h8300/Makefile
@@ -22,7 +22,9 @@ KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
KBUILD_AFLAGS += $(aflags-y)
LDFLAGS += $(ldflags-y)
+ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := h8300-unknown-linux-
+endif
core-y += arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/
ifneq '$(CONFIG_H8300_BUILTIN_DTB)' '""'
diff --git a/arch/h8300/boot/compressed/Makefile b/arch/h8300/boot/compressed/Makefile
index 87d03b7ee97e..d7bc3fa7f2c6 100644
--- a/arch/h8300/boot/compressed/Makefile
+++ b/arch/h8300/boot/compressed/Makefile
@@ -14,11 +14,12 @@ OBJECTS = $(obj)/head.o $(obj)/misc.o
# in order to suppress error message.
#
CONFIG_MEMORY_START ?= 0x00400000
-CONFIG_BOOT_LINK_OFFSET ?= 0x00140000
+CONFIG_BOOT_LINK_OFFSET ?= 0x00280000
IMAGE_OFFSET := $(shell printf "0x%08x" $$(($(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET))))
LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
-LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup $(obj)/vmlinux.lds
+LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup -T $(obj)/vmlinux.lds \
+ --defsym output=$(CONFIG_MEMORY_START)
$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
$(call if_changed,ld)
diff --git a/arch/h8300/boot/compressed/head.S b/arch/h8300/boot/compressed/head.S
index 74c0d8cc40ba..0436350c1df5 100644
--- a/arch/h8300/boot/compressed/head.S
+++ b/arch/h8300/boot/compressed/head.S
@@ -9,8 +9,8 @@
.section .text..startup,"ax"
.global startup
startup:
+ mov.l #startup, sp
mov.l er0, er4
- mov.l er0, sp
mov.l #__sbss, er0
mov.l #__ebss, er1
sub.l er0, er1
@@ -24,7 +24,7 @@ startup:
bne 1b
jsr @decompress_kernel
mov.l er4, er0
- jmp @0x400000
+ jmp @output
.align 9
fake_headers_as_bzImage:
diff --git a/arch/h8300/boot/compressed/misc.c b/arch/h8300/boot/compressed/misc.c
index c4f2cfcb117b..6029c5351895 100644
--- a/arch/h8300/boot/compressed/misc.c
+++ b/arch/h8300/boot/compressed/misc.c
@@ -28,7 +28,7 @@ static unsigned long free_mem_end_ptr;
extern char input_data[];
extern int input_len;
-static unsigned char *output;
+extern char output[];
#define HEAP_SIZE 0x10000
@@ -56,15 +56,10 @@ void *memcpy(void *dest, const void *src, size_t n)
static void error(char *x)
{
-
while (1)
; /* Halt */
}
-#define STACK_SIZE (4096)
-long user_stack[STACK_SIZE];
-long *stack_start = &user_stack[STACK_SIZE];
-
void decompress_kernel(void)
{
free_mem_ptr = (unsigned long)&_end;
diff --git a/arch/h8300/boot/compressed/vmlinux.lds b/arch/h8300/boot/compressed/vmlinux.lds
index a0a3a0ed54ef..44fd209db88a 100644
--- a/arch/h8300/boot/compressed/vmlinux.lds
+++ b/arch/h8300/boot/compressed/vmlinux.lds
@@ -27,6 +27,6 @@ SECTIONS
*(.bss*)
. = ALIGN(0x4) ;
__ebss = . ;
- __end = . ;
}
+ _end = . ;
}
diff --git a/arch/h8300/boot/dts/edosk2674.dts b/arch/h8300/boot/dts/edosk2674.dts
index dfb5c102f8da..4ce9fa874a57 100644
--- a/arch/h8300/boot/dts/edosk2674.dts
+++ b/arch/h8300/boot/dts/edosk2674.dts
@@ -7,7 +7,7 @@
chosen {
bootargs = "console=ttySC2,38400";
- stdout-path = <&sci2>;
+ stdout-path = &sci2;
};
aliases {
serial0 = &sci0;
@@ -25,13 +25,13 @@
compatible = "renesas,h8s2678-pll-clock";
clocks = <&xclk>;
#clock-cells = <0>;
- reg = <0xfee03b 2>, <0xfee045 2>;
+ reg = <0xffff3b 1>, <0xffff45 1>;
};
core_clk: core_clk {
compatible = "renesas,h8300-div-clock";
clocks = <&pllclk>;
#clock-cells = <0>;
- reg = <0xfee03b 2>;
+ reg = <0xffff3b 1>;
renesas,width = <3>;
};
fclk: fclk {
diff --git a/arch/h8300/include/asm/io.h b/arch/h8300/include/asm/io.h
index 1d09b2f2e0fe..bb837cded268 100644
--- a/arch/h8300/include/asm/io.h
+++ b/arch/h8300/include/asm/io.h
@@ -36,20 +36,20 @@ static inline void ctrl_outl(unsigned long b, unsigned long addr)
*(volatile unsigned long *)addr = b;
}
-static inline void ctrl_bclr(int b, unsigned long addr)
+static inline void ctrl_bclr(int b, unsigned char *addr)
{
if (__builtin_constant_p(b))
- __asm__("bclr %1,%0" : : "WU"(addr), "i"(b));
+ __asm__("bclr %1,%0" : "+WU"(*addr): "i"(b));
else
- __asm__("bclr %w1,%0" : : "WU"(addr), "r"(b));
+ __asm__("bclr %w1,%0" : "+WU"(*addr): "r"(b));
}
-static inline void ctrl_bset(int b, unsigned long addr)
+static inline void ctrl_bset(int b, unsigned char *addr)
{
if (__builtin_constant_p(b))
- __asm__("bset %1,%0" : : "WU"(addr), "i"(b));
+ __asm__("bset %1,%0" : "+WU"(*addr): "i"(b));
else
- __asm__("bset %w1,%0" : : "WU"(addr), "r"(b));
+ __asm__("bset %w1,%0" : "+WU"(*addr): "r"(b));
}
#endif /* __KERNEL__ */
diff --git a/arch/h8300/include/asm/thread_info.h b/arch/h8300/include/asm/thread_info.h
index 544c30785ad4..b408fe660cf8 100644
--- a/arch/h8300/include/asm/thread_info.h
+++ b/arch/h8300/include/asm/thread_info.h
@@ -13,6 +13,12 @@
#ifdef __KERNEL__
+/*
+ * Size of kernel stack for each process. This must be a power of 2...
+ */
+#define THREAD_SIZE_ORDER 1
+#define THREAD_SIZE 8192 /* 2 pages */
+
#ifndef __ASSEMBLY__
/*
@@ -46,14 +52,6 @@ struct thread_info {
#define init_thread_info (init_thread_union.thread_info)
#define init_stack (init_thread_union.stack)
-
-/*
- * Size of kernel stack for each process. This must be a power of 2...
- */
-#define THREAD_SIZE_ORDER 1
-#define THREAD_SIZE 8192 /* 2 pages */
-
-
/* how to get the thread information struct from C */
static inline struct thread_info *current_thread_info(void)
{
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index 0fd1fe65c0b8..c772abe6d19c 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -29,6 +29,7 @@
#include <linux/clk-provider.h>
#include <linux/memblock.h>
#include <linux/screen_info.h>
+#include <linux/clocksource.h>
#include <asm/setup.h>
#include <asm/irq.h>
@@ -252,4 +253,5 @@ void __init calibrate_delay(void)
void __init time_init(void)
{
of_clk_init(NULL);
+ clocksource_probe();
}
diff --git a/arch/h8300/kernel/vmlinux.lds.S b/arch/h8300/kernel/vmlinux.lds.S
index 7c302dcf5249..cb5dfb02c88d 100644
--- a/arch/h8300/kernel/vmlinux.lds.S
+++ b/arch/h8300/kernel/vmlinux.lds.S
@@ -1,5 +1,6 @@
#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
+#include <asm/thread_info.h>
#define ROMTOP 0x000000
#define RAMTOP 0x400000
@@ -42,11 +43,10 @@ SECTIONS
. = RAMTOP;
_ramstart = .;
#define ADDR(x) ROMEND
-#else
#endif
_sdata = . ;
__data_start = . ;
- RW_DATA_SECTION(0,0,0)
+ RW_DATA_SECTION(0, PAGE_SIZE, THREAD_SIZE)
#if defined(CONFIG_ROMKERNEL)
#undef ADDR
#endif
diff --git a/drivers/clk/h8300/clk-div.c b/drivers/clk/h8300/clk-div.c
index 1dd5d14d5dbe..d71d01157dbb 100644
--- a/drivers/clk/h8300/clk-div.c
+++ b/drivers/clk/h8300/clk-div.c
@@ -19,6 +19,7 @@ static void __init h8300_div_clk_setup(struct device_node *node)
const char *parent_name;
void __iomem *divcr = NULL;
int width;
+ int offset;
num_parents = of_clk_get_parent_count(node);
if (num_parents < 1) {
@@ -31,11 +32,14 @@ static void __init h8300_div_clk_setup(struct device_node *node)
pr_err("%s: failed to map divide register", clk_name);
goto error;
}
+ offset = (unsigned long)divcr & 3;
+ offset = (3 - offset) * 8;
+ divcr = (void *)((unsigned long)divcr & ~3);
parent_name = of_clk_get_parent_name(node, 0);
of_property_read_u32(node, "renesas,width", &width);
clk = clk_register_divider(NULL, clk_name, parent_name,
- CLK_SET_RATE_GATE, divcr, 0, width,
+ CLK_SET_RATE_GATE, divcr, offset, width,
CLK_DIVIDER_POWER_OF_TWO, &clklock);
if (!IS_ERR(clk)) {
of_clk_add_provider(node, of_clk_src_simple_get, clk);
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index 72d8803832ff..1bfa602958f2 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -163,9 +163,10 @@ static inline __must_check long __copy_to_user(void __user *to,
#define put_user(x, ptr) \
({ \
+ void *__p = (ptr); \
might_fault(); \
- access_ok(VERIFY_WRITE, ptr, sizeof(*ptr)) ? \
- __put_user(x, ptr) : \
+ access_ok(VERIFY_WRITE, __p, sizeof(*ptr)) ? \
+ __put_user((x), ((__typeof__(*(ptr)) *)__p)) : \
-EFAULT; \
})
@@ -225,9 +226,10 @@ extern int __put_user_bad(void) __attribute__((noreturn));
#define get_user(x, ptr) \
({ \
+ const void *__p = (ptr); \
might_fault(); \
- access_ok(VERIFY_READ, ptr, sizeof(*ptr)) ? \
- __get_user(x, ptr) : \
+ access_ok(VERIFY_READ, __p, sizeof(*ptr)) ? \
+ __get_user((x), (__typeof__(*(ptr)) *)__p) : \
-EFAULT; \
})

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