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afba7f91e6
With clkdev based clock lookup added to samsung serial driver, the use of 'struct s3c24xx_uart_clksrc' to supply clock names in platform data is removed from all the Samsung platform code. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Ramax Lo <ramaxlo@gmail.com> Cc: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
107 lines
2.6 KiB
C
107 lines
2.6 KiB
C
/*
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* Driver for Samsung SoC onboard UARTs.
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*
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* Ben Dooks, Copyright (c) 2003-2008 Simtec Electronics
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* http://armlinux.simtec.co.uk/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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struct s3c24xx_uart_info {
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char *name;
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unsigned int type;
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unsigned int fifosize;
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unsigned long rx_fifomask;
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unsigned long rx_fifoshift;
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unsigned long rx_fifofull;
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unsigned long tx_fifomask;
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unsigned long tx_fifoshift;
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unsigned long tx_fifofull;
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unsigned int def_clk_sel;
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unsigned long num_clks;
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unsigned long clksel_mask;
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unsigned long clksel_shift;
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/* uart port features */
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unsigned int has_divslot:1;
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/* clock source control */
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int (*get_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk);
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int (*set_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk);
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/* uart controls */
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int (*reset_port)(struct uart_port *, struct s3c2410_uartcfg *);
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};
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struct s3c24xx_uart_port {
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unsigned char rx_claimed;
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unsigned char tx_claimed;
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unsigned int pm_level;
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unsigned long baudclk_rate;
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unsigned int rx_irq;
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unsigned int tx_irq;
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struct s3c24xx_uart_info *info;
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struct clk *clk;
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struct clk *baudclk;
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struct uart_port port;
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/* reference to platform data */
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struct s3c2410_uartcfg *cfg;
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#ifdef CONFIG_CPU_FREQ
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struct notifier_block freq_transition;
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#endif
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};
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/* conversion functions */
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#define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev)
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/* register access controls */
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#define portaddr(port, reg) ((port)->membase + (reg))
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#define portaddrl(port, reg) ((unsigned long *)((port)->membase + (reg)))
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#define rd_regb(port, reg) (__raw_readb(portaddr(port, reg)))
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#define rd_regl(port, reg) (__raw_readl(portaddr(port, reg)))
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#define wr_regb(port, reg, val) __raw_writeb(val, portaddr(port, reg))
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#define wr_regl(port, reg, val) __raw_writel(val, portaddr(port, reg))
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extern int s3c24xx_serial_probe(struct platform_device *dev,
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struct s3c24xx_uart_info *uart);
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extern int __devexit s3c24xx_serial_remove(struct platform_device *dev);
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extern int s3c24xx_serial_initconsole(struct platform_driver *drv,
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struct s3c24xx_uart_info **uart);
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extern int s3c24xx_serial_init(struct platform_driver *drv,
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struct s3c24xx_uart_info *info);
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#ifdef CONFIG_SERIAL_SAMSUNG_DEBUG
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extern void printascii(const char *);
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static void dbg(const char *fmt, ...)
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{
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va_list va;
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char buff[256];
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va_start(va, fmt);
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vsprintf(buff, fmt, va);
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va_end(va);
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printascii(buff);
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}
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#else
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#define dbg(x...) do { } while (0)
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#endif
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