release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-s5pv310/mach-smdkv310.c

   1 /* linux/arch/arm/mach-s5pv310/mach-smdkv310.c
   2  *
   3  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
   4  *              http://www.samsung.com/
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9 */
  10
  11 #include <linux/serial_core.h>
  12
  13 #include <asm/mach/arch.h>
  14 #include <asm/mach-types.h>
  15 #include <asm/hardware/cache-l2x0.h>
  16
  17 #include <plat/regs-serial.h>
  18 #include <plat/s5pv310.h>
  19 #include <plat/cpu.h>
  20
  21 #include <mach/map.h>
  22
  23 /* Following are default values for UCON, ULCON and UFCON UART registers */
  24 #define SMDKV310_UCON_DEFAULT   (S3C2410_UCON_TXILEVEL |        \
  25                                  S3C2410_UCON_RXILEVEL |        \
  26                                  S3C2410_UCON_TXIRQMODE |       \
  27                                  S3C2410_UCON_RXIRQMODE |       \
  28                                  S3C2410_UCON_RXFIFO_TOI |      \
  29                                  S3C2443_UCON_RXERR_IRQEN)
  30
  31 #define SMDKV310_ULCON_DEFAULT  S3C2410_LCON_CS8
  32
  33 #define SMDKV310_UFCON_DEFAULT  (S3C2410_UFCON_FIFOMODE |       \
  34                                  S5PV210_UFCON_TXTRIG4 |        \
  35                                  S5PV210_UFCON_RXTRIG4)
  36
  37 static struct s3c2410_uartcfg smdkv310_uartcfgs[] __initdata = {
  38         [0] = {
  39                 .hwport         = 0,
  40                 .flags          = 0,
  41                 .ucon           = SMDKV310_UCON_DEFAULT,
  42                 .ulcon          = SMDKV310_ULCON_DEFAULT,
  43                 .ufcon          = SMDKV310_UFCON_DEFAULT,
  44         },
  45         [1] = {
  46                 .hwport         = 1,
  47                 .flags          = 0,
  48                 .ucon           = SMDKV310_UCON_DEFAULT,
  49                 .ulcon          = SMDKV310_ULCON_DEFAULT,
  50                 .ufcon          = SMDKV310_UFCON_DEFAULT,
  51         },
  52         [2] = {
  53                 .hwport         = 2,
  54                 .flags          = 0,
  55                 .ucon           = SMDKV310_UCON_DEFAULT,
  56                 .ulcon          = SMDKV310_ULCON_DEFAULT,
  57                 .ufcon          = SMDKV310_UFCON_DEFAULT,
  58         },
  59         [3] = {
  60                 .hwport         = 3,
  61                 .flags          = 0,
  62                 .ucon           = SMDKV310_UCON_DEFAULT,
  63                 .ulcon          = SMDKV310_ULCON_DEFAULT,
  64                 .ufcon          = SMDKV310_UFCON_DEFAULT,
  65         },
  66 };
  67
  68 static void __init smdkv310_map_io(void)
  69 {
  70         s5p_init_io(NULL, 0, S5P_VA_CHIPID);
  71         s3c24xx_init_clocks(24000000);
  72         s3c24xx_init_uarts(smdkv310_uartcfgs, ARRAY_SIZE(smdkv310_uartcfgs));
  73 }
  74
  75 static void __init smdkv310_machine_init(void)
  76 {
  77 #ifdef CONFIG_CACHE_L2X0
  78         l2x0_init(S5P_VA_L2CC, 1 << 28, 0xffffffff);
  79 #endif
  80 }
  81
  82 MACHINE_START(SMDKV310, "SMDKV310")
  83         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
  84         /* Maintainer: Changhwan Youn <chaos.youn@samsung.com> */
  85         .phys_io        = S3C_PA_UART & 0xfff00000,
  86         .io_pg_offst    = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
  87         .boot_params    = S5P_PA_SDRAM + 0x100,
  88         .init_irq       = s5pv310_init_irq,
  89         .map_io         = smdkv310_map_io,
  90         .init_machine   = smdkv310_machine_init,
  91         .timer          = &s5pv310_timer,
  92 MACHINE_END