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| author | Michal Simek <michal.simek@xilinx.com> | 2013-12-19 23:38:58 +0530 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2014-02-19 09:41:21 +0100 |
| commit | bf83495040fcf273eba534f7c2c0cb2325d2240c (patch) | |
| tree | 2b1a57422a586b1aecbaa8d11aedea28e631a6ec /drivers/serial | |
| parent | 627981213ad1693591a03614d35ccdc060aa5935 (diff) | |
| download | u-boot-imx-bf83495040fcf273eba534f7c2c0cb2325d2240c.zip u-boot-imx-bf83495040fcf273eba534f7c2c0cb2325d2240c.tar.gz u-boot-imx-bf83495040fcf273eba534f7c2c0cb2325d2240c.tar.bz2 | |
zynq: serial: Simplify serial driver initialization
Define both serial uarts in the driver and return
default uart based on board configuration.
- Move baseaddresses to hardware.h
- Define default baudrate and clock values
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial_zynq.c | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/drivers/serial/serial_zynq.c b/drivers/serial/serial_zynq.c index ff28f3c..9a1ee00 100644 --- a/drivers/serial/serial_zynq.c +++ b/drivers/serial/serial_zynq.c @@ -10,6 +10,7 @@ #include <asm/io.h> #include <linux/compiler.h> #include <serial.h> +#include <asm/arch/hardware.h> #define ZYNQ_UART_SR_TXFULL 0x00000010 /* TX FIFO full */ #define ZYNQ_UART_SR_RXEMPTY 0x00000002 /* RX FIFO empty */ @@ -33,13 +34,23 @@ struct uart_zynq { }; static struct uart_zynq *uart_zynq_ports[2] = { -#ifdef CONFIG_ZYNQ_SERIAL_BASEADDR0 - [0] = (struct uart_zynq *)CONFIG_ZYNQ_SERIAL_BASEADDR0, + [0] = (struct uart_zynq *)ZYNQ_SERIAL_BASEADDR0, + [1] = (struct uart_zynq *)ZYNQ_SERIAL_BASEADDR1, +}; + +#if !defined(CONFIG_ZYNQ_SERIAL_BAUDRATE0) +# define CONFIG_ZYNQ_SERIAL_BAUDRATE0 CONFIG_BAUDRATE #endif -#ifdef CONFIG_ZYNQ_SERIAL_BASEADDR1 - [1] = (struct uart_zynq *)CONFIG_ZYNQ_SERIAL_BASEADDR1, +#if !defined(CONFIG_ZYNQ_SERIAL_BAUDRATE1) +# define CONFIG_ZYNQ_SERIAL_BAUDRATE1 CONFIG_BAUDRATE +#endif + +#if !defined(CONFIG_ZYNQ_SERIAL_CLOCK0) +# define CONFIG_ZYNQ_SERIAL_CLOCK0 50000000 +#endif +#if !defined(CONFIG_ZYNQ_SERIAL_CLOCK1) +# define CONFIG_ZYNQ_SERIAL_CLOCK1 50000000 #endif -}; struct uart_zynq_params { u32 baudrate; @@ -47,14 +58,10 @@ struct uart_zynq_params { }; static struct uart_zynq_params uart_zynq_ports_param[2] = { -#if defined(CONFIG_ZYNQ_SERIAL_BAUDRATE0) && defined(CONFIG_ZYNQ_SERIAL_CLOCK0) [0].baudrate = CONFIG_ZYNQ_SERIAL_BAUDRATE0, [0].clock = CONFIG_ZYNQ_SERIAL_CLOCK0, -#endif -#if defined(CONFIG_ZYNQ_SERIAL_BAUDRATE1) && defined(CONFIG_ZYNQ_SERIAL_CLOCK1) [1].baudrate = CONFIG_ZYNQ_SERIAL_BAUDRATE1, [1].clock = CONFIG_ZYNQ_SERIAL_CLOCK1, -#endif }; /* Set up the baud rate in gd struct */ @@ -186,20 +193,19 @@ struct serial_device uart_zynq_serial1_device = __weak struct serial_device *default_serial_console(void) { +#if defined(CONFIG_ZYNQ_SERIAL_UART0) if (uart_zynq_ports[0]) return &uart_zynq_serial0_device; +#endif +#if defined(CONFIG_ZYNQ_SERIAL_UART1) if (uart_zynq_ports[1]) return &uart_zynq_serial1_device; - +#endif return NULL; } void zynq_serial_initalize(void) { -#ifdef CONFIG_ZYNQ_SERIAL_BASEADDR0 serial_register(&uart_zynq_serial0_device); -#endif -#ifdef CONFIG_ZYNQ_SERIAL_BASEADDR1 serial_register(&uart_zynq_serial1_device); -#endif } |