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init.c

/* linux/arch/arm/mach-s5p64x0/init.c
 *
 * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
 *          http://www.samsung.com
 *
 * S5P64X0 - Init support
 *
 * 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.
*/

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/serial_core.h>

#include <mach/map.h>

#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/s5p6440.h>
#include <plat/s5p6450.h>
#include <plat/regs-serial.h>

static struct s3c24xx_uart_clksrc s5p64x0_serial_clocks[] = {
      [0] = {
            .name       = "pclk_low",
            .divisor    = 1,
            .min_baud   = 0,
            .max_baud   = 0,
      },
      [1] = {
            .name       = "uclk1",
            .divisor    = 1,
            .min_baud   = 0,
            .max_baud   = 0,
      },
};

/* uart registration process */

void __init s5p64x0_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
{
      struct s3c2410_uartcfg *tcfg = cfg;
      u32 ucnt;

      for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
            if (!tcfg->clocks) {
                  tcfg->clocks = s5p64x0_serial_clocks;
                  tcfg->clocks_size = ARRAY_SIZE(s5p64x0_serial_clocks);
            }
      }
}

void __init s5p6440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
{
      int uart;

      for (uart = 0; uart < no; uart++) {
            s5p_uart_resources[uart].resources->start = S5P6440_PA_UART(uart);
            s5p_uart_resources[uart].resources->end = S5P6440_PA_UART(uart) + S5P_SZ_UART;
      }

      s5p64x0_common_init_uarts(cfg, no);
      s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
}

void __init s5p6450_init_uarts(struct s3c2410_uartcfg *cfg, int no)
{
      s5p64x0_common_init_uarts(cfg, no);
      s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
}

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