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clock.c

/* linux/arch/arm/mach-s5pv210/clock.c
 *
 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
 *          http://www.samsung.com/
 *
 * S5PV210 - Clock 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/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/sysdev.h>
#include <linux/io.h>

#include <mach/map.h>

#include <plat/cpu-freq.h>
#include <mach/regs-clock.h>
#include <plat/clock.h>
#include <plat/cpu.h>
#include <plat/pll.h>
#include <plat/s5p-clock.h>
#include <plat/clock-clksrc.h>
#include <plat/s5pv210.h>

static unsigned long xtal;

static struct clksrc_clk clk_mout_apll = {
      .clk  = {
            .name       = "mout_apll",
            .id         = -1,
      },
      .sources    = &clk_src_apll,
      .reg_src    = { .reg = S5P_CLK_SRC0, .shift = 0, .size = 1 },
};

static struct clksrc_clk clk_mout_epll = {
      .clk  = {
            .name       = "mout_epll",
            .id         = -1,
      },
      .sources    = &clk_src_epll,
      .reg_src    = { .reg = S5P_CLK_SRC0, .shift = 8, .size = 1 },
};

static struct clksrc_clk clk_mout_mpll = {
      .clk = {
            .name       = "mout_mpll",
            .id         = -1,
      },
      .sources    = &clk_src_mpll,
      .reg_src    = { .reg = S5P_CLK_SRC0, .shift = 4, .size = 1 },
};

static struct clk *clkset_armclk_list[] = {
      [0] = &clk_mout_apll.clk,
      [1] = &clk_mout_mpll.clk,
};

static struct clksrc_sources clkset_armclk = {
      .sources    = clkset_armclk_list,
      .nr_sources = ARRAY_SIZE(clkset_armclk_list),
};

static struct clksrc_clk clk_armclk = {
      .clk  = {
            .name       = "armclk",
            .id         = -1,
      },
      .sources    = &clkset_armclk,
      .reg_src    = { .reg = S5P_CLK_SRC0, .shift = 16, .size = 1 },
      .reg_div    = { .reg = S5P_CLK_DIV0, .shift = 0, .size = 3 },
};

static struct clksrc_clk clk_hclk_msys = {
      .clk  = {
            .name       = "hclk_msys",
            .id         = -1,
            .parent           = &clk_armclk.clk,
      },
      .reg_div    = { .reg = S5P_CLK_DIV0, .shift = 8, .size = 3 },
};

static struct clksrc_clk clk_pclk_msys = {
      .clk  = {
            .name       = "pclk_msys",
            .id         = -1,
            .parent           = &clk_hclk_msys.clk,
      },
      .reg_div        = { .reg = S5P_CLK_DIV0, .shift = 12, .size = 3 },
};

static struct clksrc_clk clk_sclk_a2m = {
      .clk  = {
            .name       = "sclk_a2m",
            .id         = -1,
            .parent           = &clk_mout_apll.clk,
      },
      .reg_div    = { .reg = S5P_CLK_DIV0, .shift = 4, .size = 3 },
};

static struct clk *clkset_hclk_sys_list[] = {
      [0] = &clk_mout_mpll.clk,
      [1] = &clk_sclk_a2m.clk,
};

static struct clksrc_sources clkset_hclk_sys = {
      .sources    = clkset_hclk_sys_list,
      .nr_sources = ARRAY_SIZE(clkset_hclk_sys_list),
};

static struct clksrc_clk clk_hclk_dsys = {
      .clk  = {
            .name = "hclk_dsys",
            .id   = -1,
      },
      .sources    = &clkset_hclk_sys,
      .reg_src        = { .reg = S5P_CLK_SRC0, .shift = 20, .size = 1 },
      .reg_div        = { .reg = S5P_CLK_DIV0, .shift = 16, .size = 4 },
};

static struct clksrc_clk clk_pclk_dsys = {
      .clk  = {
            .name = "pclk_dsys",
            .id   = -1,
            .parent     = &clk_hclk_dsys.clk,
      },
      .reg_div = { .reg = S5P_CLK_DIV0, .shift = 20, .size = 3 },
};

static struct clksrc_clk clk_hclk_psys = {
      .clk  = {
            .name = "hclk_psys",
            .id   = -1,
      },
      .sources    = &clkset_hclk_sys,
      .reg_src        = { .reg = S5P_CLK_SRC0, .shift = 24, .size = 1 },
      .reg_div        = { .reg = S5P_CLK_DIV0, .shift = 24, .size = 4 },
};

static struct clksrc_clk clk_pclk_psys = {
      .clk  = {
            .name = "pclk_psys",
            .id   = -1,
            .parent     = &clk_hclk_psys.clk,
      },
      .reg_div        = { .reg = S5P_CLK_DIV0, .shift = 28, .size = 3 },
};

static int s5pv210_clk_ip0_ctrl(struct clk *clk, int enable)
{
      return s5p_gatectrl(S5P_CLKGATE_IP0, clk, enable);
}

static int s5pv210_clk_ip1_ctrl(struct clk *clk, int enable)
{
      return s5p_gatectrl(S5P_CLKGATE_IP1, clk, enable);
}

static int s5pv210_clk_ip2_ctrl(struct clk *clk, int enable)
{
      return s5p_gatectrl(S5P_CLKGATE_IP2, clk, enable);
}

static int s5pv210_clk_ip3_ctrl(struct clk *clk, int enable)
{
      return s5p_gatectrl(S5P_CLKGATE_IP3, clk, enable);
}

static int s5pv210_clk_mask0_ctrl(struct clk *clk, int enable)
{
      return s5p_gatectrl(S5P_CLK_SRC_MASK0, clk, enable);
}

static int s5pv210_clk_mask1_ctrl(struct clk *clk, int enable)
{
      return s5p_gatectrl(S5P_CLK_SRC_MASK1, clk, enable);
}

static struct clk clk_sclk_hdmi27m = {
      .name       = "sclk_hdmi27m",
      .id         = -1,
      .rate       = 27000000,
};

static struct clk clk_sclk_hdmiphy = {
      .name       = "sclk_hdmiphy",
      .id         = -1,
};

static struct clk clk_sclk_usbphy0 = {
      .name       = "sclk_usbphy0",
      .id         = -1,
};

static struct clk clk_sclk_usbphy1 = {
      .name       = "sclk_usbphy1",
      .id         = -1,
};

static struct clk clk_pcmcdclk0 = {
      .name       = "pcmcdclk",
      .id         = -1,
};

static struct clk clk_pcmcdclk1 = {
      .name       = "pcmcdclk",
      .id         = -1,
};

static struct clk clk_pcmcdclk2 = {
      .name       = "pcmcdclk",
      .id         = -1,
};

static struct clk *clkset_vpllsrc_list[] = {
      [0] = &clk_fin_vpll,
      [1] = &clk_sclk_hdmi27m,
};

static struct clksrc_sources clkset_vpllsrc = {
      .sources    = clkset_vpllsrc_list,
      .nr_sources = ARRAY_SIZE(clkset_vpllsrc_list),
};

static struct clksrc_clk clk_vpllsrc = {
      .clk  = {
            .name       = "vpll_src",
            .id         = -1,
            .enable           = s5pv210_clk_mask0_ctrl,
            .ctrlbit    = (1 << 7),
      },
      .sources    = &clkset_vpllsrc,
      .reg_src    = { .reg = S5P_CLK_SRC1, .shift = 28, .size = 1 },
};

static struct clk *clkset_sclk_vpll_list[] = {
      [0] = &clk_vpllsrc.clk,
      [1] = &clk_fout_vpll,
};

static struct clksrc_sources clkset_sclk_vpll = {
      .sources    = clkset_sclk_vpll_list,
      .nr_sources = ARRAY_SIZE(clkset_sclk_vpll_list),
};

static struct clksrc_clk clk_sclk_vpll = {
      .clk  = {
            .name       = "sclk_vpll",
            .id         = -1,
      },
      .sources    = &clkset_sclk_vpll,
      .reg_src    = { .reg = S5P_CLK_SRC0, .shift = 12, .size = 1 },
};

static struct clk *clkset_moutdmc0src_list[] = {
      [0] = &clk_sclk_a2m.clk,
      [1] = &clk_mout_mpll.clk,
      [2] = NULL,
      [3] = NULL,
};

static struct clksrc_sources clkset_moutdmc0src = {
      .sources    = clkset_moutdmc0src_list,
      .nr_sources = ARRAY_SIZE(clkset_moutdmc0src_list),
};

static struct clksrc_clk clk_mout_dmc0 = {
      .clk  = {
            .name       = "mout_dmc0",
            .id         = -1,
      },
      .sources    = &clkset_moutdmc0src,
      .reg_src    = { .reg = S5P_CLK_SRC6, .shift = 24, .size = 2 },
};

static struct clksrc_clk clk_sclk_dmc0 = {
      .clk  = {
            .name       = "sclk_dmc0",
            .id         = -1,
            .parent           = &clk_mout_dmc0.clk,
      },
      .reg_div    = { .reg = S5P_CLK_DIV6, .shift = 28, .size = 4 },
};

static unsigned long s5pv210_clk_imem_get_rate(struct clk *clk)
{
      return clk_get_rate(clk->parent) / 2;
}

static struct clk_ops clk_hclk_imem_ops = {
      .get_rate   = s5pv210_clk_imem_get_rate,
};

static unsigned long s5pv210_clk_fout_apll_get_rate(struct clk *clk)
{
      return s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4508);
}

static struct clk_ops clk_fout_apll_ops = {
      .get_rate   = s5pv210_clk_fout_apll_get_rate,
};

static struct clk init_clocks_off[] = {
      {
            .name       = "pdma",
            .id         = 0,
            .parent           = &clk_hclk_psys.clk,
            .enable           = s5pv210_clk_ip0_ctrl,
            .ctrlbit    = (1 << 3),
      }, {
            .name       = "pdma",
            .id         = 1,
            .parent           = &clk_hclk_psys.clk,
            .enable           = s5pv210_clk_ip0_ctrl,
            .ctrlbit    = (1 << 4),
      }, {
            .name       = "rot",
            .id         = -1,
            .parent           = &clk_hclk_dsys.clk,
            .enable           = s5pv210_clk_ip0_ctrl,
            .ctrlbit    = (1<<29),
      }, {
            .name       = "fimc",
            .id         = 0,
            .parent           = &clk_hclk_dsys.clk,
            .enable           = s5pv210_clk_ip0_ctrl,
            .ctrlbit    = (1 << 24),
      }, {
            .name       = "fimc",
            .id         = 1,
            .parent           = &clk_hclk_dsys.clk,
            .enable           = s5pv210_clk_ip0_ctrl,
            .ctrlbit    = (1 << 25),
      }, {
            .name       = "fimc",
            .id         = 2,
            .parent           = &clk_hclk_dsys.clk,
            .enable           = s5pv210_clk_ip0_ctrl,
            .ctrlbit    = (1 << 26),
      }, {
            .name       = "otg",
            .id         = -1,
            .parent           = &clk_hclk_psys.clk,
            .enable           = s5pv210_clk_ip1_ctrl,
            .ctrlbit    = (1<<16),
      }, {
            .name       = "usb-host",
            .id         = -1,
            .parent           = &clk_hclk_psys.clk,
            .enable           = s5pv210_clk_ip1_ctrl,
            .ctrlbit    = (1<<17),
      }, {
            .name       = "lcd",
            .id         = -1,
            .parent           = &clk_hclk_dsys.clk,
            .enable           = s5pv210_clk_ip1_ctrl,
            .ctrlbit    = (1<<0),
      }, {
            .name       = "cfcon",
            .id         = 0,
            .parent           = &clk_hclk_psys.clk,
            .enable           = s5pv210_clk_ip1_ctrl,
            .ctrlbit    = (1<<25),
      }, {
            .name       = "hsmmc",
            .id         = 0,
            .parent           = &clk_hclk_psys.clk,
            .enable           = s5pv210_clk_ip2_ctrl,
            .ctrlbit    = (1<<16),
      }, {
            .name       = "hsmmc",
            .id         = 1,
            .parent           = &clk_hclk_psys.clk,
            .enable           = s5pv210_clk_ip2_ctrl,
            .ctrlbit    = (1<<17),
      }, {
            .name       = "hsmmc",
            .id         = 2,
            .parent           = &clk_hclk_psys.clk,
            .enable           = s5pv210_clk_ip2_ctrl,
            .ctrlbit    = (1<<18),
      }, {
            .name       = "hsmmc",
            .id         = 3,
            .parent           = &clk_hclk_psys.clk,
            .enable           = s5pv210_clk_ip2_ctrl,
            .ctrlbit    = (1<<19),
      }, {
            .name       = "systimer",
            .id         = -1,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<16),
      }, {
            .name       = "watchdog",
            .id         = -1,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<22),
      }, {
            .name       = "rtc",
            .id         = -1,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<15),
      }, {
            .name       = "i2c",
            .id         = 0,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<7),
      }, {
            .name       = "i2c",
            .id         = 1,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1 << 10),
      }, {
            .name       = "i2c",
            .id         = 2,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<9),
      }, {
            .name       = "spi",
            .id         = 0,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<12),
      }, {
            .name       = "spi",
            .id         = 1,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<13),
      }, {
            .name       = "spi",
            .id         = 2,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<14),
      }, {
            .name       = "timers",
            .id         = -1,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<23),
      }, {
            .name       = "adc",
            .id         = -1,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<24),
      }, {
            .name       = "keypad",
            .id         = -1,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<21),
      }, {
            .name       = "iis",
            .id         = 0,
            .parent           = &clk_p,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1<<4),
      }, {
            .name       = "iis",
            .id         = 1,
            .parent           = &clk_p,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1 << 5),
      }, {
            .name       = "iis",
            .id         = 2,
            .parent           = &clk_p,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1 << 6),
      }, {
            .name       = "spdif",
            .id         = -1,
            .parent           = &clk_p,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1 << 0),
      },
};

static struct clk init_clocks[] = {
      {
            .name       = "hclk_imem",
            .id         = -1,
            .parent           = &clk_hclk_msys.clk,
            .ctrlbit    = (1 << 5),
            .enable           = s5pv210_clk_ip0_ctrl,
            .ops        = &clk_hclk_imem_ops,
      }, {
            .name       = "uart",
            .id         = 0,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1 << 17),
      }, {
            .name       = "uart",
            .id         = 1,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1 << 18),
      }, {
            .name       = "uart",
            .id         = 2,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1 << 19),
      }, {
            .name       = "uart",
            .id         = 3,
            .parent           = &clk_pclk_psys.clk,
            .enable           = s5pv210_clk_ip3_ctrl,
            .ctrlbit    = (1 << 20),
      }, {
            .name       = "sromc",
            .id         = -1,
            .parent           = &clk_hclk_psys.clk,
            .enable           = s5pv210_clk_ip1_ctrl,
            .ctrlbit    = (1 << 26),
      },
};

static struct clk *clkset_uart_list[] = {
      [6] = &clk_mout_mpll.clk,
      [7] = &clk_mout_epll.clk,
};

static struct clksrc_sources clkset_uart = {
      .sources    = clkset_uart_list,
      .nr_sources = ARRAY_SIZE(clkset_uart_list),
};

static struct clk *clkset_group1_list[] = {
      [0] = &clk_sclk_a2m.clk,
      [1] = &clk_mout_mpll.clk,
      [2] = &clk_mout_epll.clk,
      [3] = &clk_sclk_vpll.clk,
};

static struct clksrc_sources clkset_group1 = {
      .sources    = clkset_group1_list,
      .nr_sources = ARRAY_SIZE(clkset_group1_list),
};

static struct clk *clkset_sclk_onenand_list[] = {
      [0] = &clk_hclk_psys.clk,
      [1] = &clk_hclk_dsys.clk,
};

static struct clksrc_sources clkset_sclk_onenand = {
      .sources    = clkset_sclk_onenand_list,
      .nr_sources = ARRAY_SIZE(clkset_sclk_onenand_list),
};

static struct clk *clkset_sclk_dac_list[] = {
      [0] = &clk_sclk_vpll.clk,
      [1] = &clk_sclk_hdmiphy,
};

static struct clksrc_sources clkset_sclk_dac = {
      .sources    = clkset_sclk_dac_list,
      .nr_sources = ARRAY_SIZE(clkset_sclk_dac_list),
};

static struct clksrc_clk clk_sclk_dac = {
      .clk        = {
            .name       = "sclk_dac",
            .id         = -1,
            .enable           = s5pv210_clk_mask0_ctrl,
            .ctrlbit    = (1 << 2),
      },
      .sources    = &clkset_sclk_dac,
      .reg_src    = { .reg = S5P_CLK_SRC1, .shift = 8, .size = 1 },
};

static struct clksrc_clk clk_sclk_pixel = {
      .clk        = {
            .name       = "sclk_pixel",
            .id         = -1,
            .parent           = &clk_sclk_vpll.clk,
      },
      .reg_div    = { .reg = S5P_CLK_DIV1, .shift = 0, .size = 4},
};

static struct clk *clkset_sclk_hdmi_list[] = {
      [0] = &clk_sclk_pixel.clk,
      [1] = &clk_sclk_hdmiphy,
};

static struct clksrc_sources clkset_sclk_hdmi = {
      .sources    = clkset_sclk_hdmi_list,
      .nr_sources = ARRAY_SIZE(clkset_sclk_hdmi_list),
};

static struct clksrc_clk clk_sclk_hdmi = {
      .clk        = {
            .name       = "sclk_hdmi",
            .id         = -1,
            .enable           = s5pv210_clk_mask0_ctrl,
            .ctrlbit    = (1 << 0),
      },
      .sources    = &clkset_sclk_hdmi,
      .reg_src    = { .reg = S5P_CLK_SRC1, .shift = 0, .size = 1 },
};

static struct clk *clkset_sclk_mixer_list[] = {
      [0] = &clk_sclk_dac.clk,
      [1] = &clk_sclk_hdmi.clk,
};

static struct clksrc_sources clkset_sclk_mixer = {
      .sources    = clkset_sclk_mixer_list,
      .nr_sources = ARRAY_SIZE(clkset_sclk_mixer_list),
};

static struct clk *clkset_sclk_audio0_list[] = {
      [0] = &clk_ext_xtal_mux,
      [1] = &clk_pcmcdclk0,
      [2] = &clk_sclk_hdmi27m,
      [3] = &clk_sclk_usbphy0,
      [4] = &clk_sclk_usbphy1,
      [5] = &clk_sclk_hdmiphy,
      [6] = &clk_mout_mpll.clk,
      [7] = &clk_mout_epll.clk,
      [8] = &clk_sclk_vpll.clk,
};

static struct clksrc_sources clkset_sclk_audio0 = {
      .sources    = clkset_sclk_audio0_list,
      .nr_sources = ARRAY_SIZE(clkset_sclk_audio0_list),
};

static struct clksrc_clk clk_sclk_audio0 = {
      .clk        = {
            .name       = "sclk_audio",
            .id         = 0,
            .enable           = s5pv210_clk_mask0_ctrl,
            .ctrlbit    = (1 << 24),
      },
      .sources = &clkset_sclk_audio0,
      .reg_src = { .reg = S5P_CLK_SRC6, .shift = 0, .size = 4 },
      .reg_div = { .reg = S5P_CLK_DIV6, .shift = 0, .size = 4 },
};

static struct clk *clkset_sclk_audio1_list[] = {
      [0] = &clk_ext_xtal_mux,
      [1] = &clk_pcmcdclk1,
      [2] = &clk_sclk_hdmi27m,
      [3] = &clk_sclk_usbphy0,
      [4] = &clk_sclk_usbphy1,
      [5] = &clk_sclk_hdmiphy,
      [6] = &clk_mout_mpll.clk,
      [7] = &clk_mout_epll.clk,
      [8] = &clk_sclk_vpll.clk,
};

static struct clksrc_sources clkset_sclk_audio1 = {
      .sources    = clkset_sclk_audio1_list,
      .nr_sources = ARRAY_SIZE(clkset_sclk_audio1_list),
};

static struct clksrc_clk clk_sclk_audio1 = {
      .clk        = {
            .name       = "sclk_audio",
            .id         = 1,
            .enable           = s5pv210_clk_mask0_ctrl,
            .ctrlbit    = (1 << 25),
      },
      .sources = &clkset_sclk_audio1,
      .reg_src = { .reg = S5P_CLK_SRC6, .shift = 4, .size = 4 },
      .reg_div = { .reg = S5P_CLK_DIV6, .shift = 4, .size = 4 },
};

static struct clk *clkset_sclk_audio2_list[] = {
      [0] = &clk_ext_xtal_mux,
      [1] = &clk_pcmcdclk0,
      [2] = &clk_sclk_hdmi27m,
      [3] = &clk_sclk_usbphy0,
      [4] = &clk_sclk_usbphy1,
      [5] = &clk_sclk_hdmiphy,
      [6] = &clk_mout_mpll.clk,
      [7] = &clk_mout_epll.clk,
      [8] = &clk_sclk_vpll.clk,
};

static struct clksrc_sources clkset_sclk_audio2 = {
      .sources    = clkset_sclk_audio2_list,
      .nr_sources = ARRAY_SIZE(clkset_sclk_audio2_list),
};

static struct clksrc_clk clk_sclk_audio2 = {
      .clk        = {
            .name       = "sclk_audio",
            .id         = 2,
            .enable           = s5pv210_clk_mask0_ctrl,
            .ctrlbit    = (1 << 26),
      },
      .sources = &clkset_sclk_audio2,
      .reg_src = { .reg = S5P_CLK_SRC6, .shift = 8, .size = 4 },
      .reg_div = { .reg = S5P_CLK_DIV6, .shift = 8, .size = 4 },
};

static struct clk *clkset_sclk_spdif_list[] = {
      [0] = &clk_sclk_audio0.clk,
      [1] = &clk_sclk_audio1.clk,
      [2] = &clk_sclk_audio2.clk,
};

static struct clksrc_sources clkset_sclk_spdif = {
      .sources    = clkset_sclk_spdif_list,
      .nr_sources = ARRAY_SIZE(clkset_sclk_spdif_list),
};

static int s5pv210_spdif_set_rate(struct clk *clk, unsigned long rate)
{
      struct clk *pclk;
      int ret;

      pclk = clk_get_parent(clk);
      if (IS_ERR(pclk))
            return -EINVAL;

      ret = pclk->ops->set_rate(pclk, rate);
      clk_put(pclk);

      return ret;
}

static unsigned long s5pv210_spdif_get_rate(struct clk *clk)
{
      struct clk *pclk;
      int rate;

      pclk = clk_get_parent(clk);
      if (IS_ERR(pclk))
            return -EINVAL;

      rate = pclk->ops->get_rate(clk);
      clk_put(pclk);

      return rate;
}

static struct clk_ops s5pv210_sclk_spdif_ops = {
      .set_rate   = s5pv210_spdif_set_rate,
      .get_rate   = s5pv210_spdif_get_rate,
};

static struct clksrc_clk clk_sclk_spdif = {
      .clk        = {
            .name       = "sclk_spdif",
            .id         = -1,
            .enable           = s5pv210_clk_mask0_ctrl,
            .ctrlbit    = (1 << 27),
            .ops        = &s5pv210_sclk_spdif_ops,
      },
      .sources = &clkset_sclk_spdif,
      .reg_src = { .reg = S5P_CLK_SRC6, .shift = 12, .size = 2 },
};

static struct clk *clkset_group2_list[] = {
      [0] = &clk_ext_xtal_mux,
      [1] = &clk_xusbxti,
      [2] = &clk_sclk_hdmi27m,
      [3] = &clk_sclk_usbphy0,
      [4] = &clk_sclk_usbphy1,
      [5] = &clk_sclk_hdmiphy,
      [6] = &clk_mout_mpll.clk,
      [7] = &clk_mout_epll.clk,
      [8] = &clk_sclk_vpll.clk,
};

static struct clksrc_sources clkset_group2 = {
      .sources    = clkset_group2_list,
      .nr_sources = ARRAY_SIZE(clkset_group2_list),
};

static struct clksrc_clk clksrcs[] = {
      {
            .clk  = {
                  .name       = "sclk_dmc",
                  .id         = -1,
            },
            .sources = &clkset_group1,
            .reg_src = { .reg = S5P_CLK_SRC6, .shift = 24, .size = 2 },
            .reg_div = { .reg = S5P_CLK_DIV6, .shift = 28, .size = 4 },
      }, {
            .clk  = {
                  .name       = "sclk_onenand",
                  .id         = -1,
            },
            .sources = &clkset_sclk_onenand,
            .reg_src = { .reg = S5P_CLK_SRC0, .shift = 28, .size = 1 },
            .reg_div = { .reg = S5P_CLK_DIV6, .shift = 12, .size = 3 },
      }, {
            .clk  = {
                  .name       = "uclk1",
                  .id         = 0,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 12),
            },
            .sources = &clkset_uart,
            .reg_src = { .reg = S5P_CLK_SRC4, .shift = 16, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV4, .shift = 16, .size = 4 },
      }, {
            .clk        = {
                  .name       = "uclk1",
                  .id         = 1,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 13),
            },
            .sources = &clkset_uart,
            .reg_src = { .reg = S5P_CLK_SRC4, .shift = 20, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV4, .shift = 20, .size = 4 },
      }, {
            .clk        = {
                  .name       = "uclk1",
                  .id         = 2,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 14),
            },
            .sources = &clkset_uart,
            .reg_src = { .reg = S5P_CLK_SRC4, .shift = 24, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV4, .shift = 24, .size = 4 },
      }, {
            .clk        = {
                  .name       = "uclk1",
                  .id         = 3,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 15),
            },
            .sources = &clkset_uart,
            .reg_src = { .reg = S5P_CLK_SRC4, .shift = 28, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV4, .shift = 28, .size = 4 },
      }, {
            .clk  = {
                  .name       = "sclk_mixer",
                  .id         = -1,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 1),
            },
            .sources = &clkset_sclk_mixer,
            .reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 1 },
      }, {
            .clk  = {
                  .name       = "sclk_fimc",
                  .id         = 0,
                  .enable           = s5pv210_clk_mask1_ctrl,
                  .ctrlbit    = (1 << 2),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC3, .shift = 12, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV3, .shift = 12, .size = 4 },
      }, {
            .clk  = {
                  .name       = "sclk_fimc",
                  .id         = 1,
                  .enable           = s5pv210_clk_mask1_ctrl,
                  .ctrlbit    = (1 << 3),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC3, .shift = 16, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV3, .shift = 16, .size = 4 },
      }, {
            .clk  = {
                  .name       = "sclk_fimc",
                  .id         = 2,
                  .enable           = s5pv210_clk_mask1_ctrl,
                  .ctrlbit    = (1 << 4),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC3, .shift = 20, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV3, .shift = 20, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_cam",
                  .id         = 0,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 3),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC1, .shift = 12, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV1, .shift = 12, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_cam",
                  .id         = 1,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 4),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC1, .shift = 16, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV1, .shift = 16, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_fimd",
                  .id         = -1,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 5),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC1, .shift = 20, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV1, .shift = 20, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_mmc",
                  .id         = 0,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 8),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC4, .shift = 0, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV4, .shift = 0, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_mmc",
                  .id         = 1,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 9),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC4, .shift = 4, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV4, .shift = 4, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_mmc",
                  .id         = 2,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 10),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC4, .shift = 8, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV4, .shift = 8, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_mmc",
                  .id         = 3,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 11),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC4, .shift = 12, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV4, .shift = 12, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_mfc",
                  .id         = -1,
                  .enable           = s5pv210_clk_ip0_ctrl,
                  .ctrlbit    = (1 << 16),
            },
            .sources = &clkset_group1,
            .reg_src = { .reg = S5P_CLK_SRC2, .shift = 4, .size = 2 },
            .reg_div = { .reg = S5P_CLK_DIV2, .shift = 4, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_g2d",
                  .id         = -1,
                  .enable           = s5pv210_clk_ip0_ctrl,
                  .ctrlbit    = (1 << 12),
            },
            .sources = &clkset_group1,
            .reg_src = { .reg = S5P_CLK_SRC2, .shift = 8, .size = 2 },
            .reg_div = { .reg = S5P_CLK_DIV2, .shift = 8, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_g3d",
                  .id         = -1,
                  .enable           = s5pv210_clk_ip0_ctrl,
                  .ctrlbit    = (1 << 8),
            },
            .sources = &clkset_group1,
            .reg_src = { .reg = S5P_CLK_SRC2, .shift = 0, .size = 2 },
            .reg_div = { .reg = S5P_CLK_DIV2, .shift = 0, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_csis",
                  .id         = -1,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 6),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC1, .shift = 24, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV1, .shift = 28, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_spi",
                  .id         = 0,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 16),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC5, .shift = 0, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV5, .shift = 0, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_spi",
                  .id         = 1,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 17),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC5, .shift = 4, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV5, .shift = 4, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_pwi",
                  .id         = -1,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 29),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC6, .shift = 20, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV6, .shift = 24, .size = 4 },
      }, {
            .clk        = {
                  .name       = "sclk_pwm",
                  .id         = -1,
                  .enable           = s5pv210_clk_mask0_ctrl,
                  .ctrlbit    = (1 << 19),
            },
            .sources = &clkset_group2,
            .reg_src = { .reg = S5P_CLK_SRC5, .shift = 12, .size = 4 },
            .reg_div = { .reg = S5P_CLK_DIV5, .shift = 12, .size = 4 },
      },
};

/* Clock initialisation code */
static struct clksrc_clk *sysclks[] = {
      &clk_mout_apll,
      &clk_mout_epll,
      &clk_mout_mpll,
      &clk_armclk,
      &clk_hclk_msys,
      &clk_sclk_a2m,
      &clk_hclk_dsys,
      &clk_hclk_psys,
      &clk_pclk_msys,
      &clk_pclk_dsys,
      &clk_pclk_psys,
      &clk_vpllsrc,
      &clk_sclk_vpll,
      &clk_sclk_dac,
      &clk_sclk_pixel,
      &clk_sclk_hdmi,
      &clk_mout_dmc0,
      &clk_sclk_dmc0,
      &clk_sclk_audio0,
      &clk_sclk_audio1,
      &clk_sclk_audio2,
      &clk_sclk_spdif,
};

static u32 epll_div[][6] = {
      {  48000000, 0, 48, 3, 3, 0 },
      {  96000000, 0, 48, 3, 2, 0 },
      { 144000000, 1, 72, 3, 2, 0 },
      { 192000000, 0, 48, 3, 1, 0 },
      { 288000000, 1, 72, 3, 1, 0 },
      {  32750000, 1, 65, 3, 4, 35127 },
      {  32768000, 1, 65, 3, 4, 35127 },
      {  45158400, 0, 45, 3, 3, 10355 },
      {  45000000, 0, 45, 3, 3, 10355 },
      {  45158000, 0, 45, 3, 3, 10355 },
      {  49125000, 0, 49, 3, 3, 9961 },
      {  49152000, 0, 49, 3, 3, 9961 },
      {  67737600, 1, 67, 3, 3, 48366 },
      {  67738000, 1, 67, 3, 3, 48366 },
      {  73800000, 1, 73, 3, 3, 47710 },
      {  73728000, 1, 73, 3, 3, 47710 },
      {  36000000, 1, 32, 3, 4, 0 },
      {  60000000, 1, 60, 3, 3, 0 },
      {  72000000, 1, 72, 3, 3, 0 },
      {  80000000, 1, 80, 3, 3, 0 },
      {  84000000, 0, 42, 3, 2, 0 },
      {  50000000, 0, 50, 3, 3, 0 },
};

static int s5pv210_epll_set_rate(struct clk *clk, unsigned long rate)
{
      unsigned int epll_con, epll_con_k;
      unsigned int i;

      /* Return if nothing changed */
      if (clk->rate == rate)
            return 0;

      epll_con = __raw_readl(S5P_EPLL_CON);
      epll_con_k = __raw_readl(S5P_EPLL_CON1);

      epll_con_k &= ~PLL46XX_KDIV_MASK;
      epll_con &= ~(1 << 27 |
                  PLL46XX_MDIV_MASK << PLL46XX_MDIV_SHIFT |
                  PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT |
                  PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT);

      for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
            if (epll_div[i][0] == rate) {
                  epll_con_k |= epll_div[i][5] << 0;
                  epll_con |= (epll_div[i][1] << 27 |
                              epll_div[i][2] << PLL46XX_MDIV_SHIFT |
                              epll_div[i][3] << PLL46XX_PDIV_SHIFT |
                              epll_div[i][4] << PLL46XX_SDIV_SHIFT);
                  break;
            }
      }

      if (i == ARRAY_SIZE(epll_div)) {
            printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n",
                        __func__);
            return -EINVAL;
      }

      __raw_writel(epll_con, S5P_EPLL_CON);
      __raw_writel(epll_con_k, S5P_EPLL_CON1);

      printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n",
                  clk->rate, rate);

      clk->rate = rate;

      return 0;
}

static struct clk_ops s5pv210_epll_ops = {
      .set_rate = s5pv210_epll_set_rate,
      .get_rate = s5p_epll_get_rate,
};

void __init_or_cpufreq s5pv210_setup_clocks(void)
{
      struct clk *xtal_clk;
      unsigned long vpllsrc;
      unsigned long armclk;
      unsigned long hclk_msys;
      unsigned long hclk_dsys;
      unsigned long hclk_psys;
      unsigned long pclk_msys;
      unsigned long pclk_dsys;
      unsigned long pclk_psys;
      unsigned long apll;
      unsigned long mpll;
      unsigned long epll;
      unsigned long vpll;
      unsigned int ptr;
      u32 clkdiv0, clkdiv1;

      /* Set functions for clk_fout_epll */
      clk_fout_epll.enable = s5p_epll_enable;
      clk_fout_epll.ops = &s5pv210_epll_ops;

      printk(KERN_DEBUG "%s: registering clocks\n", __func__);

      clkdiv0 = __raw_readl(S5P_CLK_DIV0);
      clkdiv1 = __raw_readl(S5P_CLK_DIV1);

      printk(KERN_DEBUG "%s: clkdiv0 = %08x, clkdiv1 = %08x\n",
                        __func__, clkdiv0, clkdiv1);

      xtal_clk = clk_get(NULL, "xtal");
      BUG_ON(IS_ERR(xtal_clk));

      xtal = clk_get_rate(xtal_clk);
      clk_put(xtal_clk);

      printk(KERN_DEBUG "%s: xtal is %ld\n", __func__, xtal);

      apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4508);
      mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502);
      epll = s5p_get_pll46xx(xtal, __raw_readl(S5P_EPLL_CON),
                        __raw_readl(S5P_EPLL_CON1), pll_4600);
      vpllsrc = clk_get_rate(&clk_vpllsrc.clk);
      vpll = s5p_get_pll45xx(vpllsrc, __raw_readl(S5P_VPLL_CON), pll_4502);

      clk_fout_apll.ops = &clk_fout_apll_ops;
      clk_fout_mpll.rate = mpll;
      clk_fout_epll.rate = epll;
      clk_fout_vpll.rate = vpll;

      printk(KERN_INFO "S5PV210: PLL settings, A=%ld, M=%ld, E=%ld V=%ld",
                  apll, mpll, epll, vpll);

      armclk = clk_get_rate(&clk_armclk.clk);
      hclk_msys = clk_get_rate(&clk_hclk_msys.clk);
      hclk_dsys = clk_get_rate(&clk_hclk_dsys.clk);
      hclk_psys = clk_get_rate(&clk_hclk_psys.clk);
      pclk_msys = clk_get_rate(&clk_pclk_msys.clk);
      pclk_dsys = clk_get_rate(&clk_pclk_dsys.clk);
      pclk_psys = clk_get_rate(&clk_pclk_psys.clk);

      printk(KERN_INFO "S5PV210: ARMCLK=%ld, HCLKM=%ld, HCLKD=%ld\n"
                   "HCLKP=%ld, PCLKM=%ld, PCLKD=%ld, PCLKP=%ld\n",
                  armclk, hclk_msys, hclk_dsys, hclk_psys,
                  pclk_msys, pclk_dsys, pclk_psys);

      clk_f.rate = armclk;
      clk_h.rate = hclk_psys;
      clk_p.rate = pclk_psys;

      for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
            s3c_set_clksrc(&clksrcs[ptr], true);
}

static struct clk *clks[] __initdata = {
      &clk_sclk_hdmi27m,
      &clk_sclk_hdmiphy,
      &clk_sclk_usbphy0,
      &clk_sclk_usbphy1,
      &clk_pcmcdclk0,
      &clk_pcmcdclk1,
      &clk_pcmcdclk2,
};

void __init s5pv210_register_clocks(void)
{
      int ptr;

      s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));

      for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++)
            s3c_register_clksrc(sysclks[ptr], 1);

      s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
      s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));

      s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
      s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));

      s3c_pwmclk_init();
}

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