mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
da121506eb
With reset port, set clock and get clock functions in SoC specific extentions being removed, only the driver probe is left over in these extensions. The probe function itself can be merged into one and moved into the samsung common serial driver. With driver probe also moved, all the SoC specific extentions are no longer required and they are deleted. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
/*
|
|
* Driver for Samsung SoC onboard UARTs.
|
|
*
|
|
* Ben Dooks, Copyright (c) 2003-2008 Simtec Electronics
|
|
* http://armlinux.simtec.co.uk/
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
struct s3c24xx_uart_info {
|
|
char *name;
|
|
unsigned int type;
|
|
unsigned int fifosize;
|
|
unsigned long rx_fifomask;
|
|
unsigned long rx_fifoshift;
|
|
unsigned long rx_fifofull;
|
|
unsigned long tx_fifomask;
|
|
unsigned long tx_fifoshift;
|
|
unsigned long tx_fifofull;
|
|
unsigned int def_clk_sel;
|
|
unsigned long num_clks;
|
|
unsigned long clksel_mask;
|
|
unsigned long clksel_shift;
|
|
|
|
/* uart port features */
|
|
|
|
unsigned int has_divslot:1;
|
|
|
|
/* uart controls */
|
|
int (*reset_port)(struct uart_port *, struct s3c2410_uartcfg *);
|
|
};
|
|
|
|
struct s3c24xx_serial_drv_data {
|
|
struct s3c24xx_uart_info *info;
|
|
struct s3c2410_uartcfg *def_cfg;
|
|
unsigned int fifosize[CONFIG_SERIAL_SAMSUNG_UARTS];
|
|
};
|
|
|
|
struct s3c24xx_uart_port {
|
|
unsigned char rx_claimed;
|
|
unsigned char tx_claimed;
|
|
unsigned int pm_level;
|
|
unsigned long baudclk_rate;
|
|
|
|
unsigned int rx_irq;
|
|
unsigned int tx_irq;
|
|
|
|
struct s3c24xx_uart_info *info;
|
|
struct clk *clk;
|
|
struct clk *baudclk;
|
|
struct uart_port port;
|
|
struct s3c24xx_serial_drv_data *drv_data;
|
|
|
|
/* reference to platform data */
|
|
struct s3c2410_uartcfg *cfg;
|
|
|
|
#ifdef CONFIG_CPU_FREQ
|
|
struct notifier_block freq_transition;
|
|
#endif
|
|
};
|
|
|
|
/* conversion functions */
|
|
|
|
#define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev)
|
|
|
|
/* register access controls */
|
|
|
|
#define portaddr(port, reg) ((port)->membase + (reg))
|
|
#define portaddrl(port, reg) ((unsigned long *)((port)->membase + (reg)))
|
|
|
|
#define rd_regb(port, reg) (__raw_readb(portaddr(port, reg)))
|
|
#define rd_regl(port, reg) (__raw_readl(portaddr(port, reg)))
|
|
|
|
#define wr_regb(port, reg, val) __raw_writeb(val, portaddr(port, reg))
|
|
#define wr_regl(port, reg, val) __raw_writel(val, portaddr(port, reg))
|
|
|
|
#ifdef CONFIG_SERIAL_SAMSUNG_DEBUG
|
|
|
|
extern void printascii(const char *);
|
|
|
|
static void dbg(const char *fmt, ...)
|
|
{
|
|
va_list va;
|
|
char buff[256];
|
|
|
|
va_start(va, fmt);
|
|
vsprintf(buff, fmt, va);
|
|
va_end(va);
|
|
|
|
printascii(buff);
|
|
}
|
|
|
|
#else
|
|
#define dbg(x...) do { } while (0)
|
|
#endif
|