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serial/8250: Add LPC3220 standard UART type 

LPC32xx has "Standard" UARTs that are actually 16550A compatible but have
bigger FIFOs. Since the already supported 16X50 line still doesn't match here,
we agreed on adding a new type.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Alan Cox <alan@linux.intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Roland Stigge 2012-06-11 21:57:13 +02:00 committed by Greg Kroah-Hartman
parent dabfb351db
commit 7a5145965c
2 changed files with 10 additions and 1 deletions
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8
drivers/tty/serial/8250/8250.c
View File

@ -282,6 +282,14 @@ static const struct serial8250_config uart_config[] = {
.fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
.flags = UART_CAP_FIFO | UART_CAP_AFE | UART_CAP_EFR,
},
[PORT_LPC3220] = {
.name = "LPC3220",
.fifo_size = 64,
.tx_loadsz = 32,
.fcr = UART_FCR_DMA_SELECT | UART_FCR_ENABLE_FIFO |
UART_FCR_R_TRIG_00 | UART_FCR_T_TRIG_00,
.flags = UART_CAP_FIFO,
},
};
/* Uart divisor latch read */

3
include/linux/serial_core.h
View File

@ -47,7 +47,8 @@
#define PORT_U6_16550A 19 /* ST-Ericsson U6xxx internal UART */
#define PORT_TEGRA 20 /* NVIDIA Tegra internal UART */
#define PORT_XR17D15X 21 /* Exar XR17D15x UART */
#define PORT_MAX_8250 21 /* max port ID */
#define PORT_LPC3220 22 /* NXP LPC32xx SoC "Standard" UART */
#define PORT_MAX_8250 22 /* max port ID */
/*
* ARM specific type numbers. These are not currently guaranteed