Difuse/u-boot
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

serial: zynq: Use global baudrate instead of hardcoded one

Browse source 
This change enables to change baudrate on command line.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michal Simek 2014-12-02 13:52:00 +01:00
parent c4fa511425
commit 12c9e7d622
1 changed files with 1 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
drivers/serial/serial_zynq.c
View file

@ -42,29 +42,13 @@ static struct uart_zynq *uart_zynq_ports[2] = {
[1] = (struct uart_zynq *)ZYNQ_SERIAL_BASEADDR1, [1] = (struct uart_zynq *)ZYNQ_SERIAL_BASEADDR1,
}; };
#if !defined(CONFIG_ZYNQ_SERIAL_BAUDRATE0)
# define CONFIG_ZYNQ_SERIAL_BAUDRATE0 CONFIG_BAUDRATE
#endif
#if !defined(CONFIG_ZYNQ_SERIAL_BAUDRATE1)
# define CONFIG_ZYNQ_SERIAL_BAUDRATE1 CONFIG_BAUDRATE
#endif
struct uart_zynq_params {
u32 baudrate;
};
static struct uart_zynq_params uart_zynq_ports_param[2] = {
[0].baudrate = CONFIG_ZYNQ_SERIAL_BAUDRATE0,
[1].baudrate = CONFIG_ZYNQ_SERIAL_BAUDRATE1,
};
/* Set up the baud rate in gd struct */ /* Set up the baud rate in gd struct */
static void uart_zynq_serial_setbrg(const int port) static void uart_zynq_serial_setbrg(const int port)
{ {
/* Calculation results. */ /* Calculation results. */
unsigned int calc_bauderror, bdiv, bgen; unsigned int calc_bauderror, bdiv, bgen;
unsigned long calc_baud = 0; unsigned long calc_baud = 0;
unsigned long baud = uart_zynq_ports_param[port].baudrate; unsigned long baud = gd->baudrate;
unsigned long clock = get_uart_clk(port); unsigned long clock = get_uart_clk(port);
struct uart_zynq *regs = uart_zynq_ports[port]; struct uart_zynq *regs = uart_zynq_ports[port];