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authorMike Frysinger <vapier@gentoo.org>2011-06-06 16:47:31 -0400
committerMike Frysinger <vapier@gentoo.org>2011-07-12 02:17:46 -0400
commitb1e574d95b6a2d8674dc45b6ff3425cffc115c14 (patch)
tree68ae1061a58ead57275345b9b8eb31a4e35ebd4d /arch/blackfin
parent4150cec3353b7a6d7a3ea71b2d3c62deafff353d (diff)
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Blackfin: serial: convert to bfin_{read,write} helpers
Since the serial struct declares the sizes for us, no need to hardcode them in the accessor functions. Let the bfin_{read,write} helpers do it for us. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/cpu/initcode.c2
-rw-r--r--arch/blackfin/cpu/serial.c16
-rw-r--r--arch/blackfin/cpu/serial.h18
3 files changed, 19 insertions, 17 deletions
diff --git a/arch/blackfin/cpu/initcode.c b/arch/blackfin/cpu/initcode.c
index 917b7f9..fb3a101 100644
--- a/arch/blackfin/cpu/initcode.c
+++ b/arch/blackfin/cpu/initcode.c
@@ -19,6 +19,8 @@
#include <asm/mach-common/bits/pll.h>
#include <asm/mach-common/bits/uart.h>
+#define BUG() while (1) { asm volatile("emuexcpt;"); }
+
#include "serial.h"
__attribute__((always_inline))
diff --git a/arch/blackfin/cpu/serial.c b/arch/blackfin/cpu/serial.c
index 1124ffd..030160f 100644
--- a/arch/blackfin/cpu/serial.c
+++ b/arch/blackfin/cpu/serial.c
@@ -63,7 +63,7 @@ static size_t cache_count;
static uint16_t uart_lsr_save;
static uint16_t uart_lsr_read(uint32_t uart_base)
{
- uint16_t lsr = bfin_read16(&pUART->lsr);
+ uint16_t lsr = bfin_read(&pUART->lsr);
uart_lsr_save |= (lsr & (OE|PE|FE|BI));
return lsr | uart_lsr_save;
}
@@ -71,7 +71,7 @@ static uint16_t uart_lsr_read(uint32_t uart_base)
static void uart_lsr_clear(uint32_t uart_base)
{
uart_lsr_save = 0;
- bfin_write16(&pUART->lsr, bfin_read16(&pUART->lsr) | -1);
+ bfin_write(&pUART->lsr, bfin_read(&pUART->lsr) | -1);
}
#else
/* When debugging is disabled, we only care about the DR bit, so if other
@@ -80,11 +80,11 @@ static void uart_lsr_clear(uint32_t uart_base)
*/
static inline uint16_t uart_lsr_read(uint32_t uart_base)
{
- return bfin_read16(&pUART->lsr);
+ return bfin_read(&pUART->lsr);
}
static void uart_lsr_clear(uint32_t uart_base)
{
- bfin_write16(&pUART->lsr, bfin_read16(&pUART->lsr) | -1);
+ bfin_write(&pUART->lsr, bfin_read(&pUART->lsr) | -1);
}
#endif
@@ -101,7 +101,7 @@ static void uart_putc(uint32_t uart_base, const char c)
continue;
/* queue the character for transmission */
- bfin_write16(&pUART->thr, c);
+ bfin_write(&pUART->thr, c);
SSYNC();
WATCHDOG_RESET();
@@ -122,7 +122,7 @@ static int uart_getc(uint32_t uart_base)
continue;
/* grab the new byte */
- uart_rbr_val = bfin_read16(&pUART->rbr);
+ uart_rbr_val = bfin_read(&pUART->rbr);
#ifdef CONFIG_DEBUG_SERIAL
/* grab & clear the LSR */
@@ -136,8 +136,8 @@ static int uart_getc(uint32_t uart_base)
uint16_t dll, dlh;
printf("\n[SERIAL ERROR]\n");
ACCESS_LATCH();
- dll = bfin_read16(&pUART->dll);
- dlh = bfin_read16(&pUART->dlh);
+ dll = bfin_read(&pUART->dll);
+ dlh = bfin_read(&pUART->dlh);
ACCESS_PORT_IER();
printf("\tDLL=0x%x DLH=0x%x\n", dll, dlh);
do {
diff --git a/arch/blackfin/cpu/serial.h b/arch/blackfin/cpu/serial.h
index aa5c217..f649e40 100644
--- a/arch/blackfin/cpu/serial.h
+++ b/arch/blackfin/cpu/serial.h
@@ -101,9 +101,9 @@ struct bfin_mmr_serial {
# define ACCESS_PORT_IER()
#else
# define ACCESS_LATCH() \
- bfin_write16(&pUART->lcr, bfin_read16(&pUART->lcr) | DLAB)
+ bfin_write(&pUART->lcr, bfin_read(&pUART->lcr) | DLAB)
# define ACCESS_PORT_IER() \
- bfin_write16(&pUART->lcr, bfin_read16(&pUART->lcr) & ~DLAB)
+ bfin_write(&pUART->lcr, bfin_read(&pUART->lcr) & ~DLAB)
#endif
__attribute__((always_inline))
@@ -173,10 +173,10 @@ __attribute__((always_inline))
static inline int uart_init(uint32_t uart_base)
{
/* always enable UART -- avoids anomalies 05000309 and 05000350 */
- bfin_write16(&pUART->gctl, UCEN);
+ bfin_write(&pUART->gctl, UCEN);
/* Set LCR to Word Lengh 8-bit word select */
- bfin_write16(&pUART->lcr, WLS_8);
+ bfin_write(&pUART->lcr, WLS_8);
SSYNC();
@@ -196,7 +196,7 @@ __attribute__((always_inline))
static inline int serial_early_uninit(uint32_t uart_base)
{
/* disable the UART by clearing UCEN */
- bfin_write16(&pUART->gctl, 0);
+ bfin_write(&pUART->gctl, 0);
return 0;
}
@@ -209,8 +209,8 @@ static inline void serial_early_put_div(uint32_t uart_base, uint16_t divisor)
SSYNC();
/* Program the divisor to get the baud rate we want */
- bfin_write16(&pUART->dll, LOB(divisor));
- bfin_write16(&pUART->dlh, HIB(divisor));
+ bfin_write(&pUART->dll, LOB(divisor));
+ bfin_write(&pUART->dlh, HIB(divisor));
SSYNC();
/* Clear DLAB in LCR to Access THR RBR IER */
@@ -227,8 +227,8 @@ static inline uint16_t serial_early_get_div(void)
ACCESS_LATCH();
SSYNC();
- uint8_t dll = bfin_read16(&pUART->dll);
- uint8_t dlh = bfin_read16(&pUART->dlh);
+ uint8_t dll = bfin_read(&pUART->dll);
+ uint8_t dlh = bfin_read(&pUART->dlh);
uint16_t divisor = (dlh << 8) | dll;
/* Clear DLAB in LCR to Access THR RBR IER */