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| author | Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2014-02-08 10:10:02 +0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-02-21 07:54:05 -0500 |
| commit | 94b5400e76f6a5100e2af88de274b0a6881bf94d (patch) | |
| tree | 47df35ebafc74a344237b143f9db82e964824ea0 /drivers | |
| parent | 1d568c7666e81fa920de38a3c83895764ea8cf0f (diff) | |
| download | talos-obmc-uboot-94b5400e76f6a5100e2af88de274b0a6881bf94d.tar.gz talos-obmc-uboot-94b5400e76f6a5100e2af88de274b0a6881bf94d.zip | |
serial/serial_arc: switch from {read|write}l to {read|write}b accessors
This is required for proper functionality on big-endian targets.
Memory-mapped registres of ARC UART are not 32-bit words but 8-bit bytes
so on little-endian target either acessor (_l or _b) works fine.
On big-endian only _b accessors works as expected.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Noam Camus <noamc@ezchip.com>
Cc: Tom Rini <trini@ti.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/serial_arc.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/serial/serial_arc.c b/drivers/serial/serial_arc.c index 55d07691fc..b21b12ba44 100644 --- a/drivers/serial/serial_arc.c +++ b/drivers/serial/serial_arc.c @@ -38,7 +38,7 @@ static void arc_serial_setbrg(void) gd->baudrate = CONFIG_BAUDRATE; arc_console_baud = gd->cpu_clk / (gd->baudrate * 4) - 1; - writel(arc_console_baud & 0xff, ®s->baudl); + writeb(arc_console_baud & 0xff, ®s->baudl); #ifdef CONFIG_ARC /* @@ -50,11 +50,11 @@ static void arc_serial_setbrg(void) * Until that is fixed, when running on ISS, we will set baudh to !0 */ if (gd->arch.running_on_hw) - writel((arc_console_baud & 0xff00) >> 8, ®s->baudh); + writeb((arc_console_baud & 0xff00) >> 8, ®s->baudh); else - writel(1, ®s->baudh); + writeb(1, ®s->baudh); #else - writel((arc_console_baud & 0xff00) >> 8, ®s->baudh); + writeb((arc_console_baud & 0xff00) >> 8, ®s->baudh); #endif } @@ -70,15 +70,15 @@ static void arc_serial_putc(const char c) if (c == '\n') arc_serial_putc('\r'); - while (!(readl(®s->status) & UART_TXEMPTY)) + while (!(readb(®s->status) & UART_TXEMPTY)) ; - writel(c, ®s->data); + writeb(c, ®s->data); } static int arc_serial_tstc(void) { - return !(readl(®s->status) & UART_RXEMPTY); + return !(readb(®s->status) & UART_RXEMPTY); } static int arc_serial_getc(void) @@ -87,10 +87,10 @@ static int arc_serial_getc(void) ; /* Check for overflow errors */ - if (readl(®s->status) & UART_OVERFLOW_ERR) + if (readb(®s->status) & UART_OVERFLOW_ERR) return 0; - return readl(®s->data) & 0xFF; + return readb(®s->data) & 0xFF; } static void arc_serial_puts(const char *s) |
