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authorJohn Rigby <john.rigby@linaro.org>2010-12-20 18:27:51 -0700
committerWolfgang Denk <wd@denx.de>2010-12-21 11:33:36 +0100
commit2956532625cf8414ad3efb37598ba34db08d67ec (patch)
tree19d9df98e764da9970e9cd0d70243fbaa9120fd5 /drivers/serial
parent71aab09b2c1edd1b6e00819abd1e31c04db04f36 (diff)
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Move DECLARE_GLOBAL_DATA_PTR to file scope
It can be optimised out by the compiler otherwise resulting in obscure errors like a board not booting. This has been documented in README since 2006 when these were first fixed up for GCC 4.x. Signed-off-by: John Rigby <john.rigby@linaro.org> Fix some additional places. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-By: Albert ARIBAUD <albert.aribaud@free.fr>
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/s3c64xx.c3
-rw-r--r--drivers/serial/serial_s5p.c3
-rw-r--r--drivers/serial/serial_sh.c4
3 files changed, 6 insertions, 4 deletions
diff --git a/drivers/serial/s3c64xx.c b/drivers/serial/s3c64xx.c
index 6d22df7..a88e930 100644
--- a/drivers/serial/s3c64xx.c
+++ b/drivers/serial/s3c64xx.c
@@ -25,6 +25,8 @@
#include <asm/arch/s3c6400.h>
+DECLARE_GLOBAL_DATA_PTR;
+
#ifdef CONFIG_SERIAL1
#define UART_NR S3C64XX_UART0
@@ -68,7 +70,6 @@ static const int udivslot[] = {
void serial_setbrg(void)
{
- DECLARE_GLOBAL_DATA_PTR;
s3c64xx_uart *const uart = s3c64xx_get_base_uart(UART_NR);
u32 pclk = get_PCLK();
u32 baudrate = gd->baudrate;
diff --git a/drivers/serial/serial_s5p.c b/drivers/serial/serial_s5p.c
index 36333c3..9c1cbf4 100644
--- a/drivers/serial/serial_s5p.c
+++ b/drivers/serial/serial_s5p.c
@@ -27,6 +27,8 @@
#include <asm/arch/clk.h>
#include <serial.h>
+DECLARE_GLOBAL_DATA_PTR;
+
static inline struct s5p_uart *s5p_get_base_uart(int dev_index)
{
u32 offset = dev_index * sizeof(struct s5p_uart);
@@ -61,7 +63,6 @@ static const int udivslot[] = {
void serial_setbrg_dev(const int dev_index)
{
- DECLARE_GLOBAL_DATA_PTR;
struct s5p_uart *const uart = s5p_get_base_uart(dev_index);
u32 uclk = get_uart_clk(dev_index);
u32 baudrate = gd->baudrate;
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
index bfdb2ce..0103a29 100644
--- a/drivers/serial/serial_sh.c
+++ b/drivers/serial/serial_sh.c
@@ -21,6 +21,8 @@
#include <asm/io.h>
#include <asm/processor.h>
+DECLARE_GLOBAL_DATA_PTR;
+
#if defined(CONFIG_CONS_SCIF0)
# define SCIF_BASE SCIF0_BASE
#elif defined(CONFIG_CONS_SCIF1)
@@ -131,8 +133,6 @@
void serial_setbrg(void)
{
- DECLARE_GLOBAL_DATA_PTR;
-
writeb(SCBRR_VALUE(gd->baudrate, CONFIG_SYS_CLK_FREQ), SCBRR);
}