From e9a43850e6a99e335c8120579749389b376bc204 Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Mon, 30 Oct 2006 09:31:27 +0100
Subject: AVR32: Get rid of board_early_init
board_early_init() is left over from some early prototyping work
where we had to initialize the SDRAM controller ourselves. This
depends on the kernel being loaded into static RAM, which just
isn't possible on any commercially available products today.
In order to run without a boot loader, we need to create a zImage
stub or have the debugger initialize the SDRAM for us (for really
low-level debugging)
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
arch/avr32/boards/atstk1000/setup.c | 9 ---------
arch/avr32/kernel/head.S | 3 ---
2 files changed, 12 deletions(-)
diff --git a/arch/avr32/boards/atstk1000/setup.c b/arch/avr32/boards/atstk1000/setup.c
index 191ab85de9..272c011802 100644
--- a/arch/avr32/boards/atstk1000/setup.c
+++ b/arch/avr32/boards/atstk1000/setup.c
@@ -21,15 +21,6 @@ struct tag *bootloader_tags __initdata;
struct lcdc_platform_data __initdata atstk1000_fb0_data;
-asmlinkage void __init board_early_init(void)
-{
- extern void sdram_init(void);
-
-#ifdef CONFIG_LOADER_STANDALONE
- sdram_init();
-#endif
-}
-
void __init board_setup_fbmem(unsigned long fbmem_start,
unsigned long fbmem_size)
{
diff --git a/arch/avr32/kernel/head.S b/arch/avr32/kernel/head.S
index 773b7ad87b..6163bd0acb 100644
--- a/arch/avr32/kernel/head.S
+++ b/arch/avr32/kernel/head.S
@@ -30,9 +30,6 @@ kernel_entry:
mov r7, 0
#endif
- /* Set up the PIO, SDRAM controller, early printk, etc. */
- rcall board_early_init
-
/* Start the show */
lddpc pc, kernel_start_addr
--
cgit v1.2.2
From 168c8fa32ff40d6caf7226a5abf2a0096f3393bf Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Tue, 31 Oct 2006 20:01:11 +0100
Subject: AVR32: Fix thinko in generic_find_next_zero_le_bit()
The existing implementation of this function seems to be looking for
a one although it should be looking for a zero. This causes trouble
for the ext2 filesystem, which tends to report -ENOSPC without this
patch.
Fix this by complementing each word before scanning.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
arch/avr32/lib/findbit.S | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/avr32/lib/findbit.S b/arch/avr32/lib/findbit.S
index 2b4856f4bf..c6b91dee85 100644
--- a/arch/avr32/lib/findbit.S
+++ b/arch/avr32/lib/findbit.S
@@ -136,6 +136,7 @@ ENTRY(generic_find_next_zero_le_bit)
/* offset is not word-aligned. Handle the first (32 - r10) bits */
ldswp.w r8, r12[0]
sub r12, -4
+ com r8
lsr r8, r8, r10
brne .L_found
@@ -146,7 +147,7 @@ ENTRY(generic_find_next_zero_le_bit)
/* Main loop. offset must be word-aligned */
1: ldswp.w r8, r12[0]
- cp.w r8, 0
+ com r8
brne .L_found
sub r12, -4
sub r9, 32
--
cgit v1.2.2
From bbfd2bf9028a55cb85ff51eb34dc663b7e49ed55 Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Mon, 6 Nov 2006 14:02:44 +0100
Subject: AVR32: Wire up sys_epoll_pwait
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
arch/avr32/kernel/syscall-stubs.S | 9 +++++++++
arch/avr32/kernel/syscall_table.S | 1 +
include/asm-avr32/unistd.h | 3 ++-
3 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S
index 7589a9b426..890286a1e6 100644
--- a/arch/avr32/kernel/syscall-stubs.S
+++ b/arch/avr32/kernel/syscall-stubs.S
@@ -100,3 +100,12 @@ __sys_splice:
rcall sys_splice
sub sp, -4
popm pc
+
+ .global __sys_epoll_pwait
+ .type __sys_epoll_pwait,@function
+__sys_epoll_pwait:
+ pushm lr
+ st.w --sp, ARG6
+ rcall sys_epoll_pwait
+ sub sp, -4
+ popm pc
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
index 63b206965d..db8f8b55ff 100644
--- a/arch/avr32/kernel/syscall_table.S
+++ b/arch/avr32/kernel/syscall_table.S
@@ -286,4 +286,5 @@ sys_call_table:
.long sys_sync_file_range
.long sys_tee
.long sys_vmsplice
+ .long __sys_epoll_pwait /* 265 */
.long sys_ni_syscall /* r8 is saturated at nr_syscalls */
diff --git a/include/asm-avr32/unistd.h b/include/asm-avr32/unistd.h
index a50e500455..56ed1f9d34 100644
--- a/include/asm-avr32/unistd.h
+++ b/include/asm-avr32/unistd.h
@@ -280,9 +280,10 @@
#define __NR_sync_file_range 262
#define __NR_tee 263
#define __NR_vmsplice 264
+#define __NR_epoll_pwait 265
#ifdef __KERNEL__
-#define NR_syscalls 265
+#define NR_syscalls 266
#define __ARCH_WANT_IPC_PARSE_VERSION
--
cgit v1.2.2
From 6af0f5f83169ef215b4579834ddfb2691e8a7bff Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Mon, 6 Nov 2006 14:06:45 +0100
Subject: AVR32: Add missing return instruction in __raw_writesb
__raw_writesb ends with a conditional branch, which is obviously
wrong. It should return after the last loop terminates.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---
arch/avr32/lib/io-readsb.S | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/avr32/lib/io-readsb.S b/arch/avr32/lib/io-readsb.S
index b319d5e717..2be5da7ed2 100644
--- a/arch/avr32/lib/io-readsb.S
+++ b/arch/avr32/lib/io-readsb.S
@@ -45,3 +45,5 @@ __raw_readsb:
sub r10, 1
st.b r11++, r8
brne 3b
+
+ retal r12
--
cgit v1.2.2