diff options
| author | Gabe Black <gabeblack@google.com> | 2013-09-30 21:25:49 -0700 |
|---|---|---|
| committer | Isaac Christensen <isaac.christensen@se-eng.com> | 2014-08-25 19:07:04 +0200 |
| commit | 77ffa0d3ad7686a9e697bf1fa05966f019249483 (patch) | |
| tree | 6ec24401a68eb9ae7c347b079c80413c206a093f /src/drivers/uart/uart8250mem.c | |
| parent | 3905e3d47c773e2c9664f09b7209711764683da6 (diff) | |
| download | coreboot-77ffa0d3ad7686a9e697bf1fa05966f019249483.tar.xz | |
UART 8250: Unconditionally provide register constants and use UART8250 prefix.
The register indexes and bitfield masks were guarded by the UART8250 config
options, but it might be (is) necessary to use them in a driver that is
UART8250 like without actually using the 8250 driver itself. To avoid any name
collision with other drivers, also change the constant prefix from UART_ to
UART8250_.
Change-Id: Ie606d9e0329132961c3004688176204a829569dc
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/171336
Reviewed-by: Ronald Minnich <rminnich@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit a93900be8d8a8260db49e30737608f9161fbf249)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6715
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/drivers/uart/uart8250mem.c')
| -rw-r--r-- | src/drivers/uart/uart8250mem.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/src/drivers/uart/uart8250mem.c b/src/drivers/uart/uart8250mem.c index 976bcb6949..79654f1786 100644 --- a/src/drivers/uart/uart8250mem.c +++ b/src/drivers/uart/uart8250mem.c @@ -35,7 +35,7 @@ static int uart8250_mem_can_tx_byte(unsigned base_port) { - return read8(base_port + UART_LSR) & UART_LSR_THRE; + return read8(base_port + UART8250_LSR) & UART8250_LSR_THRE; } static void uart8250_mem_tx_byte(unsigned base_port, unsigned char data) @@ -43,19 +43,19 @@ static void uart8250_mem_tx_byte(unsigned base_port, unsigned char data) unsigned long int i = SINGLE_CHAR_TIMEOUT; while(i-- && !uart8250_mem_can_tx_byte(base_port)) udelay(1); - write8(base_port + UART_TBR, data); + write8(base_port + UART8250_TBR, data); } static void uart8250_mem_tx_flush(unsigned base_port) { unsigned long int i = FIFO_TIMEOUT; - while(i-- && !(read8(base_port + UART_LSR) & UART_LSR_TEMT)) + while(i-- && !(read8(base_port + UART8250_LSR) & UART8250_LSR_TEMT)) udelay(1); } static int uart8250_mem_can_rx_byte(unsigned base_port) { - return read8(base_port + UART_LSR) & UART_LSR_DR; + return read8(base_port + UART8250_LSR) & UART8250_LSR_DR; } static unsigned char uart8250_mem_rx_byte(unsigned base_port) @@ -64,7 +64,7 @@ static unsigned char uart8250_mem_rx_byte(unsigned base_port) while(i-- && !uart8250_mem_can_rx_byte(base_port)) udelay(1); if (i) - return read8(base_port + UART_RBR); + return read8(base_port + UART8250_RBR); else return 0x0; } @@ -72,21 +72,21 @@ static unsigned char uart8250_mem_rx_byte(unsigned base_port) static void uart8250_mem_init(unsigned base_port, unsigned divisor) { /* Disable interrupts */ - write8(base_port + UART_IER, 0x0); + write8(base_port + UART8250_IER, 0x0); /* Enable FIFOs */ - write8(base_port + UART_FCR, UART_FCR_FIFO_EN); + write8(base_port + UART8250_FCR, UART8250_FCR_FIFO_EN); /* Assert DTR and RTS so the other end is happy */ - write8(base_port + UART_MCR, UART_MCR_DTR | UART_MCR_RTS); + write8(base_port + UART8250_MCR, UART8250_MCR_DTR | UART8250_MCR_RTS); /* DLAB on */ - write8(base_port + UART_LCR, UART_LCR_DLAB | CONFIG_TTYS0_LCS); + write8(base_port + UART8250_LCR, UART8250_LCR_DLAB | CONFIG_TTYS0_LCS); - write8(base_port + UART_DLL, divisor & 0xFF); - write8(base_port + UART_DLM, (divisor >> 8) & 0xFF); + write8(base_port + UART8250_DLL, divisor & 0xFF); + write8(base_port + UART8250_DLM, (divisor >> 8) & 0xFF); /* Set to 3 for 8N1 */ - write8(base_port + UART_LCR, CONFIG_TTYS0_LCS); + write8(base_port + UART8250_LCR, CONFIG_TTYS0_LCS); } void uart_init(int idx) |