From: Jagannadha Sutradharudu Teki jagannadha.sutradharudu-teki@xilinx.com
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: Jagannadha Sutradharudu Teki jaganna@xilinx.com Signed-off-by: Michal Simek michal.simek@xilinx.com ---
Changes in v1: None
arch/arm/include/asm/arch-zynq/hardware.h | 2 ++ drivers/serial/serial_zynq.c | 34 ++++++++++++++++++------------- include/configs/zynq.h | 9 +++----- 3 files changed, 25 insertions(+), 20 deletions(-)
diff --git a/arch/arm/include/asm/arch-zynq/hardware.h b/arch/arm/include/asm/arch-zynq/hardware.h index cd69677..b1a7775 100644 --- a/arch/arm/include/asm/arch-zynq/hardware.h +++ b/arch/arm/include/asm/arch-zynq/hardware.h @@ -7,6 +7,8 @@ #ifndef _ASM_ARCH_HARDWARE_H #define _ASM_ARCH_HARDWARE_H
+#define ZYNQ_SERIAL_BASEADDR0 0xE0000000 +#define ZYNQ_SERIAL_BASEADDR1 0xE0001000 #define ZYNQ_SYS_CTRL_BASEADDR 0xF8000000 #define ZYNQ_DEV_CFG_APB_BASEADDR 0xF8007000 #define ZYNQ_SCU_BASEADDR 0xF8F00000 diff --git a/drivers/serial/serial_zynq.c b/drivers/serial/serial_zynq.c index ff28f3c..9b24af2 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) { +#ifdef CONFIG_ZYNQ_SERIAL_BASEADDR0 if (uart_zynq_ports[0]) return &uart_zynq_serial0_device; +#endif +#ifdef CONFIG_ZYNQ_SERIAL_BASEADDR1 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 } diff --git a/include/configs/zynq.h b/include/configs/zynq.h index 3938b54..6632223 100644 --- a/include/configs/zynq.h +++ b/include/configs/zynq.h @@ -32,16 +32,13 @@ #define CONFIG_SYS_BAUDRATE_TABLE \ {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}
-/* Zynq Serial driver */ -#define CONFIG_ZYNQ_SERIAL -#define CONFIG_ZYNQ_SERIAL_BASEADDR0 0xE0001000 -#define CONFIG_ZYNQ_SERIAL_BAUDRATE0 CONFIG_BAUDRATE -#define CONFIG_ZYNQ_SERIAL_CLOCK0 50000000 - /* DCC driver */ #if defined(CONFIG_ZYNQ_DCC) # define CONFIG_ARM_DCC # define CONFIG_CPU_V6 /* Required by CONFIG_ARM_DCC */ +#else +# define CONFIG_ZYNQ_SERIAL_BASEADDR1 +# define CONFIG_ZYNQ_SERIAL #endif
/* Ethernet driver */ -- 1.8.2.3