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linux/arch/arm/mach-s5pc100/clock.c
Padmavathi Venna eaff82ed0f ARM: S5PC100: Add I2S clkdev support 
I2S controller has an internal mux for RCLK source clk. The list
of source clk names were passed through platform data in non-dt case.
Register the existing RCLK source clocks with clkdev using generic
connection id. This is required as part of adding DT support
for I2S controller driver.

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-12-19 09:49:29 -08:00

1364 lines
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/* linux/arch/arm/mach-s5pc100/clock.c
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5PC100 - 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/err.h>
#include <linux/clk.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 "common.h"
static struct clk s5p_clk_otgphy = {
.name = "otg_phy",
};
static struct clk dummy_apb_pclk = {
.name = "apb_pclk",
.id = -1,
};
static struct clk *clk_src_mout_href_list[] = {
[0] = &s5p_clk_27m,
[1] = &clk_fin_hpll,
};
static struct clksrc_sources clk_src_mout_href = {
.sources = clk_src_mout_href_list,
.nr_sources = ARRAY_SIZE(clk_src_mout_href_list),
};
static struct clksrc_clk clk_mout_href = {
.clk = {
.name = "mout_href",
},
.sources = &clk_src_mout_href,
.reg_src = { .reg = S5P_CLK_SRC0, .shift = 20, .size = 1 },
};
static struct clk *clk_src_mout_48m_list[] = {
[0] = &clk_xusbxti,
[1] = &s5p_clk_otgphy,
};
static struct clksrc_sources clk_src_mout_48m = {
.sources = clk_src_mout_48m_list,
.nr_sources = ARRAY_SIZE(clk_src_mout_48m_list),
};
static struct clksrc_clk clk_mout_48m = {
.clk = {
.name = "mout_48m",
},
.sources = &clk_src_mout_48m,
.reg_src = { .reg = S5P_CLK_SRC1, .shift = 24, .size = 1 },
};
static struct clksrc_clk clk_mout_mpll = {
.clk = {
.name = "mout_mpll",
},
.sources = &clk_src_mpll,
.reg_src = { .reg = S5P_CLK_SRC0, .shift = 4, .size = 1 },
};
static struct clksrc_clk clk_mout_apll = {
.clk = {
.name = "mout_apll",
},
.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",
},
.sources = &clk_src_epll,
.reg_src = { .reg = S5P_CLK_SRC0, .shift = 8, .size = 1 },
};
static struct clk *clk_src_mout_hpll_list[] = {
[0] = &s5p_clk_27m,
};
static struct clksrc_sources clk_src_mout_hpll = {
.sources = clk_src_mout_hpll_list,
.nr_sources = ARRAY_SIZE(clk_src_mout_hpll_list),
};
static struct clksrc_clk clk_mout_hpll = {
.clk = {
.name = "mout_hpll",
},
.sources = &clk_src_mout_hpll,
.reg_src = { .reg = S5P_CLK_SRC0, .shift = 12, .size = 1 },
};
static struct clksrc_clk clk_div_apll = {
.clk = {
.name = "div_apll",
.parent = &clk_mout_apll.clk,
},
.reg_div = { .reg = S5P_CLK_DIV0, .shift = 0, .size = 1 },
};
static struct clksrc_clk clk_div_arm = {
.clk = {
.name = "div_arm",
.parent = &clk_div_apll.clk,
},
.reg_div = { .reg = S5P_CLK_DIV0, .shift = 4, .size = 3 },
};
static struct clksrc_clk clk_div_d0_bus = {
.clk = {
.name = "div_d0_bus",
.parent = &clk_div_arm.clk,
},
.reg_div = { .reg = S5P_CLK_DIV0, .shift = 8, .size = 3 },
};
static struct clksrc_clk clk_div_pclkd0 = {
.clk = {
.name = "div_pclkd0",
.parent = &clk_div_d0_bus.clk,
},
.reg_div = { .reg = S5P_CLK_DIV0, .shift = 12, .size = 3 },
};
static struct clksrc_clk clk_div_secss = {
.clk = {
.name = "div_secss",
.parent = &clk_div_d0_bus.clk,
},
.reg_div = { .reg = S5P_CLK_DIV0, .shift = 16, .size = 3 },
};
static struct clksrc_clk clk_div_apll2 = {
.clk = {
.name = "div_apll2",
.parent = &clk_mout_apll.clk,
},
.reg_div = { .reg = S5P_CLK_DIV1, .shift = 0, .size = 3 },
};
static struct clk *clk_src_mout_am_list[] = {
[0] = &clk_mout_mpll.clk,
[1] = &clk_div_apll2.clk,
};
static struct clksrc_sources clk_src_mout_am = {
.sources = clk_src_mout_am_list,
.nr_sources = ARRAY_SIZE(clk_src_mout_am_list),
};
static struct clksrc_clk clk_mout_am = {
.clk = {
.name = "mout_am",
},
.sources = &clk_src_mout_am,
.reg_src = { .reg = S5P_CLK_SRC0, .shift = 16, .size = 1 },
};
static struct clksrc_clk clk_div_d1_bus = {
.clk = {
.name = "div_d1_bus",
.parent = &clk_mout_am.clk,
},
.reg_div = { .reg = S5P_CLK_DIV1, .shift = 12, .size = 3 },
};
static struct clksrc_clk clk_div_mpll2 = {
.clk = {
.name = "div_mpll2",
.parent = &clk_mout_am.clk,
},
.reg_div = { .reg = S5P_CLK_DIV1, .shift = 8, .size = 1 },
};
static struct clksrc_clk clk_div_mpll = {
.clk = {
.name = "div_mpll",
.parent = &clk_mout_am.clk,
},
.reg_div = { .reg = S5P_CLK_DIV1, .shift = 4, .size = 2 },
};
static struct clk *clk_src_mout_onenand_list[] = {
[0] = &clk_div_d0_bus.clk,
[1] = &clk_div_d1_bus.clk,
};
static struct clksrc_sources clk_src_mout_onenand = {
.sources = clk_src_mout_onenand_list,
.nr_sources = ARRAY_SIZE(clk_src_mout_onenand_list),
};
static struct clksrc_clk clk_mout_onenand = {
.clk = {
.name = "mout_onenand",
},
.sources = &clk_src_mout_onenand,
.reg_src = { .reg = S5P_CLK_SRC0, .shift = 24, .size = 1 },
};
static struct clksrc_clk clk_div_onenand = {
.clk = {
.name = "div_onenand",
.parent = &clk_mout_onenand.clk,
},
.reg_div = { .reg = S5P_CLK_DIV1, .shift = 20, .size = 2 },
};
static struct clksrc_clk clk_div_pclkd1 = {
.clk = {
.name = "div_pclkd1",
.parent = &clk_div_d1_bus.clk,
},
.reg_div = { .reg = S5P_CLK_DIV1, .shift = 16, .size = 3 },
};
static struct clksrc_clk clk_div_cam = {
.clk = {
.name = "div_cam",
.parent = &clk_div_mpll2.clk,
},
.reg_div = { .reg = S5P_CLK_DIV1, .shift = 24, .size = 5 },
};
static struct clksrc_clk clk_div_hdmi = {
.clk = {
.name = "div_hdmi",
.parent = &clk_mout_hpll.clk,
},
.reg_div = { .reg = S5P_CLK_DIV3, .shift = 28, .size = 4 },
};
static u32 epll_div[][4] = {
{ 32750000, 131, 3, 4 },
{ 32768000, 131, 3, 4 },
{ 36000000, 72, 3, 3 },
{ 45000000, 90, 3, 3 },
{ 45158000, 90, 3, 3 },
{ 45158400, 90, 3, 3 },
{ 48000000, 96, 3, 3 },
{ 49125000, 131, 4, 3 },
{ 49152000, 131, 4, 3 },
{ 60000000, 120, 3, 3 },
{ 67737600, 226, 5, 3 },
{ 67738000, 226, 5, 3 },
{ 73800000, 246, 5, 3 },
{ 73728000, 246, 5, 3 },
{ 72000000, 144, 3, 3 },
{ 84000000, 168, 3, 3 },
{ 96000000, 96, 3, 2 },
{ 144000000, 144, 3, 2 },
{ 192000000, 96, 3, 1 }
};
static int s5pc100_epll_set_rate(struct clk *clk, unsigned long rate)
{
unsigned int epll_con;
unsigned int i;
if (clk->rate == rate) /* Return if nothing changed */
return 0;
epll_con = __raw_readl(S5P_EPLL_CON);
epll_con &= ~(PLL65XX_MDIV_MASK | PLL65XX_PDIV_MASK | PLL65XX_SDIV_MASK);
for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
if (epll_div[i][0] == rate) {
epll_con |= (epll_div[i][1] << PLL65XX_MDIV_SHIFT) |
(epll_div[i][2] << PLL65XX_PDIV_SHIFT) |
(epll_div[i][3] << PLL65XX_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);
printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n",
clk->rate, rate);
clk->rate = rate;
return 0;
}
static struct clk_ops s5pc100_epll_ops = {
.get_rate = s5p_epll_get_rate,
.set_rate = s5pc100_epll_set_rate,
};
static int s5pc100_d0_0_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_D00, clk, enable);
}
static int s5pc100_d0_1_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_D01, clk, enable);
}
static int s5pc100_d0_2_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_D02, clk, enable);
}
static int s5pc100_d1_0_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_D10, clk, enable);
}
static int s5pc100_d1_1_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_D11, clk, enable);
}
static int s5pc100_d1_2_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_D12, clk, enable);
}
static int s5pc100_d1_3_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_D13, clk, enable);
}
static int s5pc100_d1_4_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_D14, clk, enable);
}
static int s5pc100_d1_5_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_D15, clk, enable);
}
static int s5pc100_sclk0_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_SCLK0, clk, enable);
}
static int s5pc100_sclk1_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_SCLK1, clk, enable);
}
/*
* The following clocks will be disabled during clock initialization. It is
* recommended to keep the following clocks disabled until the driver requests
* for enabling the clock.
*/
static struct clk init_clocks_off[] = {
{
.name = "cssys",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_0_ctrl,
.ctrlbit = (1 << 6),
}, {
.name = "secss",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_0_ctrl,
.ctrlbit = (1 << 5),
}, {
.name = "g2d",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_0_ctrl,
.ctrlbit = (1 << 4),
}, {
.name = "mdma",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_0_ctrl,
.ctrlbit = (1 << 3),
}, {
.name = "cfcon",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_0_ctrl,
.ctrlbit = (1 << 2),
}, {
.name = "nfcon",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_1_ctrl,
.ctrlbit = (1 << 3),
}, {
.name = "onenandc",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_1_ctrl,
.ctrlbit = (1 << 2),
}, {
.name = "sdm",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_2_ctrl,
.ctrlbit = (1 << 2),
}, {
.name = "seckey",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_2_ctrl,
.ctrlbit = (1 << 1),
}, {
.name = "modemif",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_0_ctrl,
.ctrlbit = (1 << 4),
}, {
.name = "otg",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_0_ctrl,
.ctrlbit = (1 << 3),
}, {
.name = "usbhost",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_0_ctrl,
.ctrlbit = (1 << 2),
}, {
.name = "dma",
.devname = "dma-pl330.1",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_0_ctrl,
.ctrlbit = (1 << 1),
}, {
.name = "dma",
.devname = "dma-pl330.0",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_0_ctrl,
.ctrlbit = (1 << 0),
}, {
.name = "lcd",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_1_ctrl,
.ctrlbit = (1 << 0),
}, {
.name = "rotator",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_1_ctrl,
.ctrlbit = (1 << 1),
}, {
.name = "fimc",
.devname = "s5p-fimc.0",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_1_ctrl,
.ctrlbit = (1 << 2),
}, {
.name = "fimc",
.devname = "s5p-fimc.1",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_1_ctrl,
.ctrlbit = (1 << 3),
}, {
.name = "fimc",
.devname = "s5p-fimc.2",
.enable = s5pc100_d1_1_ctrl,
.ctrlbit = (1 << 4),
}, {
.name = "jpeg",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_1_ctrl,
.ctrlbit = (1 << 5),
}, {
.name = "mipi-dsim",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_1_ctrl,
.ctrlbit = (1 << 6),
}, {
.name = "mipi-csis",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_1_ctrl,
.ctrlbit = (1 << 7),
}, {
.name = "g3d",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_0_ctrl,
.ctrlbit = (1 << 8),
}, {
.name = "tv",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_2_ctrl,
.ctrlbit = (1 << 0),
}, {
.name = "vp",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_2_ctrl,
.ctrlbit = (1 << 1),
}, {
.name = "mixer",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_2_ctrl,
.ctrlbit = (1 << 2),
}, {
.name = "hdmi",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_2_ctrl,
.ctrlbit = (1 << 3),
}, {
.name = "mfc",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_2_ctrl,
.ctrlbit = (1 << 4),
}, {
.name = "apc",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_3_ctrl,
.ctrlbit = (1 << 2),
}, {
.name = "iec",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_3_ctrl,
.ctrlbit = (1 << 3),
}, {
.name = "systimer",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_3_ctrl,
.ctrlbit = (1 << 7),
}, {
.name = "watchdog",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_3_ctrl,
.ctrlbit = (1 << 8),
}, {
.name = "rtc",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_3_ctrl,
.ctrlbit = (1 << 9),
}, {
.name = "i2c",
.devname = "s3c2440-i2c.0",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 4),
}, {
.name = "i2c",
.devname = "s3c2440-i2c.1",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 5),
}, {
.name = "spi",
.devname = "s5pc100-spi.0",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 6),
}, {
.name = "spi",
.devname = "s5pc100-spi.1",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 7),
}, {
.name = "spi",
.devname = "s5pc100-spi.2",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 8),
}, {
.name = "irda",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 9),
}, {
.name = "ccan",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 10),
}, {
.name = "ccan",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 11),
}, {
.name = "hsitx",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 12),
}, {
.name = "hsirx",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 13),
}, {
.name = "ac97",
.parent = &clk_div_pclkd1.clk,
.enable = s5pc100_d1_5_ctrl,
.ctrlbit = (1 << 3),
}, {
.name = "pcm",
.devname = "samsung-pcm.0",
.parent = &clk_div_pclkd1.clk,
.enable = s5pc100_d1_5_ctrl,
.ctrlbit = (1 << 4),
}, {
.name = "pcm",
.devname = "samsung-pcm.1",
.parent = &clk_div_pclkd1.clk,
.enable = s5pc100_d1_5_ctrl,
.ctrlbit = (1 << 5),
}, {
.name = "spdif",
.parent = &clk_div_pclkd1.clk,
.enable = s5pc100_d1_5_ctrl,
.ctrlbit = (1 << 6),
}, {
.name = "adc",
.parent = &clk_div_pclkd1.clk,
.enable = s5pc100_d1_5_ctrl,
.ctrlbit = (1 << 7),
}, {
.name = "keypad",
.parent = &clk_div_pclkd1.clk,
.enable = s5pc100_d1_5_ctrl,
.ctrlbit = (1 << 8),
}, {
.name = "mmc_48m",
.devname = "s3c-sdhci.0",
.parent = &clk_mout_48m.clk,
.enable = s5pc100_sclk0_ctrl,
.ctrlbit = (1 << 15),
}, {
.name = "mmc_48m",
.devname = "s3c-sdhci.1",
.parent = &clk_mout_48m.clk,
.enable = s5pc100_sclk0_ctrl,
.ctrlbit = (1 << 16),
}, {
.name = "mmc_48m",
.devname = "s3c-sdhci.2",
.parent = &clk_mout_48m.clk,
.enable = s5pc100_sclk0_ctrl,
.ctrlbit = (1 << 17),
},
};
static struct clk clk_hsmmc2 = {
.name = "hsmmc",
.devname = "s3c-sdhci.2",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_0_ctrl,
.ctrlbit = (1 << 7),
};
static struct clk clk_hsmmc1 = {
.name = "hsmmc",
.devname = "s3c-sdhci.1",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_0_ctrl,
.ctrlbit = (1 << 6),
};
static struct clk clk_hsmmc0 = {
.name = "hsmmc",
.devname = "s3c-sdhci.0",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_0_ctrl,
.ctrlbit = (1 << 5),
};
static struct clk clk_48m_spi0 = {
.name = "spi_48m",
.devname = "s5pc100-spi.0",
.parent = &clk_mout_48m.clk,
.enable = s5pc100_sclk0_ctrl,
.ctrlbit = (1 << 7),
};
static struct clk clk_48m_spi1 = {
.name = "spi_48m",
.devname = "s5pc100-spi.1",
.parent = &clk_mout_48m.clk,
.enable = s5pc100_sclk0_ctrl,
.ctrlbit = (1 << 8),
};
static struct clk clk_48m_spi2 = {
.name = "spi_48m",
.devname = "s5pc100-spi.2",
.parent = &clk_mout_48m.clk,
.enable = s5pc100_sclk0_ctrl,
.ctrlbit = (1 << 9),
};
static struct clk clk_i2s0 = {
.name = "iis",
.devname = "samsung-i2s.0",
.parent = &clk_div_pclkd1.clk,
.enable = s5pc100_d1_5_ctrl,
.ctrlbit = (1 << 0),
};
static struct clk clk_i2s1 = {
.name = "iis",
.devname = "samsung-i2s.1",
.parent = &clk_div_pclkd1.clk,
.enable = s5pc100_d1_5_ctrl,
.ctrlbit = (1 << 1),
};
static struct clk clk_i2s2 = {
.name = "iis",
.devname = "samsung-i2s.2",
.parent = &clk_div_pclkd1.clk,
.enable = s5pc100_d1_5_ctrl,
.ctrlbit = (1 << 2),
};
static struct clk clk_vclk54m = {
.name = "vclk_54m",
.rate = 54000000,
};
static struct clk clk_i2scdclk0 = {
.name = "i2s_cdclk0",
};
static struct clk clk_i2scdclk1 = {
.name = "i2s_cdclk1",
};
static struct clk clk_i2scdclk2 = {
.name = "i2s_cdclk2",
};
static struct clk clk_pcmcdclk0 = {
.name = "pcm_cdclk0",
};
static struct clk clk_pcmcdclk1 = {
.name = "pcm_cdclk1",
};
static struct clk *clk_src_group1_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_div_mpll2.clk,
[2] = &clk_fin_epll,
[3] = &clk_mout_hpll.clk,
};
static struct clksrc_sources clk_src_group1 = {
.sources = clk_src_group1_list,
.nr_sources = ARRAY_SIZE(clk_src_group1_list),
};
static struct clk *clk_src_group2_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_div_mpll.clk,
};
static struct clksrc_sources clk_src_group2 = {
.sources = clk_src_group2_list,
.nr_sources = ARRAY_SIZE(clk_src_group2_list),
};
static struct clk *clk_src_group3_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_div_mpll.clk,
[2] = &clk_fin_epll,
[3] = &clk_i2scdclk0,
[4] = &clk_pcmcdclk0,
[5] = &clk_mout_hpll.clk,
};
static struct clksrc_sources clk_src_group3 = {
.sources = clk_src_group3_list,
.nr_sources = ARRAY_SIZE(clk_src_group3_list),
};
static struct clksrc_clk clk_sclk_audio0 = {
.clk = {
.name = "sclk_audio",
.devname = "samsung-pcm.0",
.ctrlbit = (1 << 8),
.enable = s5pc100_sclk1_ctrl,
},
.sources = &clk_src_group3,
.reg_src = { .reg = S5P_CLK_SRC3, .shift = 12, .size = 3 },
.reg_div = { .reg = S5P_CLK_DIV4, .shift = 12, .size = 4 },
};
static struct clk *clk_src_group4_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_div_mpll.clk,
[2] = &clk_fin_epll,
[3] = &clk_i2scdclk1,
[4] = &clk_pcmcdclk1,
[5] = &clk_mout_hpll.clk,
};
static struct clksrc_sources clk_src_group4 = {
.sources = clk_src_group4_list,
.nr_sources = ARRAY_SIZE(clk_src_group4_list),
};
static struct clksrc_clk clk_sclk_audio1 = {
.clk = {
.name = "sclk_audio",
.devname = "samsung-pcm.1",
.ctrlbit = (1 << 9),
.enable = s5pc100_sclk1_ctrl,
},
.sources = &clk_src_group4,
.reg_src = { .reg = S5P_CLK_SRC3, .shift = 16, .size = 3 },
.reg_div = { .reg = S5P_CLK_DIV4, .shift = 16, .size = 4 },
};
static struct clk *clk_src_group5_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_div_mpll.clk,
[2] = &clk_fin_epll,
[3] = &clk_i2scdclk2,
[4] = &clk_mout_hpll.clk,
};
static struct clksrc_sources clk_src_group5 = {
.sources = clk_src_group5_list,
.nr_sources = ARRAY_SIZE(clk_src_group5_list),
};
static struct clksrc_clk clk_sclk_audio2 = {
.clk = {
.name = "sclk_audio",
.devname = "samsung-pcm.2",
.ctrlbit = (1 << 10),
.enable = s5pc100_sclk1_ctrl,
},
.sources = &clk_src_group5,
.reg_src = { .reg = S5P_CLK_SRC3, .shift = 20, .size = 3 },
.reg_div = { .reg = S5P_CLK_DIV4, .shift = 20, .size = 4 },
};
static struct clk *clk_src_group6_list[] = {
[0] = &s5p_clk_27m,
[1] = &clk_vclk54m,
[2] = &clk_div_hdmi.clk,
};
static struct clksrc_sources clk_src_group6 = {
.sources = clk_src_group6_list,
.nr_sources = ARRAY_SIZE(clk_src_group6_list),
};
static struct clk *clk_src_group7_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_div_mpll.clk,
[2] = &clk_mout_hpll.clk,
[3] = &clk_vclk54m,
};
static struct clksrc_sources clk_src_group7 = {
.sources = clk_src_group7_list,
.nr_sources = ARRAY_SIZE(clk_src_group7_list),
};
static struct clk *clk_src_mmc0_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_div_mpll.clk,
[2] = &clk_fin_epll,
};
static struct clksrc_sources clk_src_mmc0 = {
.sources = clk_src_mmc0_list,
.nr_sources = ARRAY_SIZE(clk_src_mmc0_list),
};
static struct clk *clk_src_mmc12_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_div_mpll.clk,
[2] = &clk_fin_epll,
[3] = &clk_mout_hpll.clk,
};
static struct clksrc_sources clk_src_mmc12 = {
.sources = clk_src_mmc12_list,
.nr_sources = ARRAY_SIZE(clk_src_mmc12_list),
};
static struct clk *clk_src_irda_usb_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_div_mpll.clk,
[2] = &clk_fin_epll,
[3] = &clk_mout_hpll.clk,
};
static struct clksrc_sources clk_src_irda_usb = {
.sources = clk_src_irda_usb_list,
.nr_sources = ARRAY_SIZE(clk_src_irda_usb_list),
};
static struct clk *clk_src_pwi_list[] = {
[0] = &clk_fin_epll,
[1] = &clk_mout_epll.clk,
[2] = &clk_div_mpll.clk,
};
static struct clksrc_sources clk_src_pwi = {
.sources = clk_src_pwi_list,
.nr_sources = ARRAY_SIZE(clk_src_pwi_list),
};
static struct clk *clk_sclk_spdif_list[] = {
[0] = &clk_sclk_audio0.clk,
[1] = &clk_sclk_audio1.clk,
[2] = &clk_sclk_audio2.clk,
};
static struct clksrc_sources clk_src_sclk_spdif = {
.sources = clk_sclk_spdif_list,
.nr_sources = ARRAY_SIZE(clk_sclk_spdif_list),
};
static struct clksrc_clk clk_sclk_spdif = {
.clk = {
.name = "sclk_spdif",
.ctrlbit = (1 << 11),
.enable = s5pc100_sclk1_ctrl,
.ops = &s5p_sclk_spdif_ops,
},
.sources = &clk_src_sclk_spdif,
.reg_src = { .reg = S5P_CLK_SRC3, .shift = 24, .size = 2 },
};
static struct clksrc_clk clksrcs[] = {
{
.clk = {
.name = "sclk_mixer",
.ctrlbit = (1 << 6),
.enable = s5pc100_sclk0_ctrl,
},
.sources = &clk_src_group6,
.reg_src = { .reg = S5P_CLK_SRC2, .shift = 28, .size = 2 },
}, {
.clk = {
.name = "sclk_lcd",
.ctrlbit = (1 << 0),
.enable = s5pc100_sclk1_ctrl,
},
.sources = &clk_src_group7,
.reg_src = { .reg = S5P_CLK_SRC2, .shift = 12, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV3, .shift = 12, .size = 4 },
}, {
.clk = {
.name = "sclk_fimc",
.devname = "s5p-fimc.0",
.ctrlbit = (1 << 1),
.enable = s5pc100_sclk1_ctrl,
},
.sources = &clk_src_group7,
.reg_src = { .reg = S5P_CLK_SRC2, .shift = 16, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV3, .shift = 16, .size = 4 },
}, {
.clk = {
.name = "sclk_fimc",
.devname = "s5p-fimc.1",
.ctrlbit = (1 << 2),
.enable = s5pc100_sclk1_ctrl,
},
.sources = &clk_src_group7,
.reg_src = { .reg = S5P_CLK_SRC2, .shift = 20, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV3, .shift = 20, .size = 4 },
}, {
.clk = {
.name = "sclk_fimc",
.devname = "s5p-fimc.2",
.ctrlbit = (1 << 3),
.enable = s5pc100_sclk1_ctrl,
},
.sources = &clk_src_group7,
.reg_src = { .reg = S5P_CLK_SRC2, .shift = 24, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV3, .shift = 24, .size = 4 },
}, {
.clk = {
.name = "sclk_irda",
.ctrlbit = (1 << 10),
.enable = s5pc100_sclk0_ctrl,
},
.sources = &clk_src_irda_usb,
.reg_src = { .reg = S5P_CLK_SRC2, .shift = 8, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV3, .shift = 8, .size = 4 },
}, {
.clk = {
.name = "sclk_irda",
.ctrlbit = (1 << 10),
.enable = s5pc100_sclk0_ctrl,
},
.sources = &clk_src_mmc12,
.reg_src = { .reg = S5P_CLK_SRC1, .shift = 16, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV2, .shift = 16, .size = 4 },
}, {
.clk = {
.name = "sclk_pwi",
.ctrlbit = (1 << 1),
.enable = s5pc100_sclk0_ctrl,
},
.sources = &clk_src_pwi,
.reg_src = { .reg = S5P_CLK_SRC3, .shift = 0, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV4, .shift = 0, .size = 3 },
}, {
.clk = {
.name = "sclk_uhost",
.ctrlbit = (1 << 11),
.enable = s5pc100_sclk0_ctrl,
},
.sources = &clk_src_irda_usb,
.reg_src = { .reg = S5P_CLK_SRC1, .shift = 20, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV2, .shift = 20, .size = 4 },
},
};
static struct clksrc_clk clk_sclk_uart = {
.clk = {
.name = "uclk1",
.ctrlbit = (1 << 3),
.enable = s5pc100_sclk0_ctrl,
},
.sources = &clk_src_group2,
.reg_src = { .reg = S5P_CLK_SRC1, .shift = 0, .size = 1 },
.reg_div = { .reg = S5P_CLK_DIV2, .shift = 0, .size = 4 },
};
static struct clksrc_clk clk_sclk_mmc0 = {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.0",
.ctrlbit = (1 << 12),
.enable = s5pc100_sclk1_ctrl,
},
.sources = &clk_src_mmc0,
.reg_src = { .reg = S5P_CLK_SRC2, .shift = 0, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV3, .shift = 0, .size = 4 },
};
static struct clksrc_clk clk_sclk_mmc1 = {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.1",
.ctrlbit = (1 << 13),
.enable = s5pc100_sclk1_ctrl,
},
.sources = &clk_src_mmc12,
.reg_src = { .reg = S5P_CLK_SRC2, .shift = 4, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV3, .shift = 4, .size = 4 },
};
static struct clksrc_clk clk_sclk_mmc2 = {
.clk = {
.name = "sclk_mmc",
.devname = "s3c-sdhci.2",
.ctrlbit = (1 << 14),
.enable = s5pc100_sclk1_ctrl,
},
.sources = &clk_src_mmc12,
.reg_src = { .reg = S5P_CLK_SRC2, .shift = 8, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV3, .shift = 8, .size = 4 },
};
static struct clksrc_clk clk_sclk_spi0 = {
.clk = {
.name = "sclk_spi",
.devname = "s5pc100-spi.0",
.ctrlbit = (1 << 4),
.enable = s5pc100_sclk0_ctrl,
},
.sources = &clk_src_group1,
.reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV2, .shift = 4, .size = 4 },
};
static struct clksrc_clk clk_sclk_spi1 = {
.clk = {
.name = "sclk_spi",
.devname = "s5pc100-spi.1",
.ctrlbit = (1 << 5),
.enable = s5pc100_sclk0_ctrl,
},
.sources = &clk_src_group1,
.reg_src = { .reg = S5P_CLK_SRC1, .shift = 8, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV2, .shift = 8, .size = 4 },
};
static struct clksrc_clk clk_sclk_spi2 = {
.clk = {
.name = "sclk_spi",
.devname = "s5pc100-spi.2",
.ctrlbit = (1 << 6),
.enable = s5pc100_sclk0_ctrl,
},
.sources = &clk_src_group1,
.reg_src = { .reg = S5P_CLK_SRC1, .shift = 12, .size = 2 },
.reg_div = { .reg = S5P_CLK_DIV2, .shift = 12, .size = 4 },
};
/* Clock initialisation code */
static struct clksrc_clk *sysclks[] = {
&clk_mout_apll,
&clk_mout_epll,
&clk_mout_mpll,
&clk_mout_hpll,
&clk_mout_href,
&clk_mout_48m,
&clk_div_apll,
&clk_div_arm,
&clk_div_d0_bus,
&clk_div_pclkd0,
&clk_div_secss,
&clk_div_apll2,
&clk_mout_am,
&clk_div_d1_bus,
&clk_div_mpll2,
&clk_div_mpll,
&clk_mout_onenand,
&clk_div_onenand,
&clk_div_pclkd1,
&clk_div_cam,
&clk_div_hdmi,
&clk_sclk_audio0,
&clk_sclk_audio1,
&clk_sclk_audio2,
&clk_sclk_spdif,
};
static struct clk *clk_cdev[] = {
&clk_hsmmc0,
&clk_hsmmc1,
&clk_hsmmc2,
&clk_48m_spi0,
&clk_48m_spi1,
&clk_48m_spi2,
&clk_i2s0,
&clk_i2s1,
&clk_i2s2,
};
static struct clksrc_clk *clksrc_cdev[] = {
&clk_sclk_uart,
&clk_sclk_mmc0,
&clk_sclk_mmc1,
&clk_sclk_mmc2,
&clk_sclk_spi0,
&clk_sclk_spi1,
&clk_sclk_spi2,
};
void __init_or_cpufreq s5pc100_setup_clocks(void)
{
unsigned long xtal;
unsigned long arm;
unsigned long hclkd0;
unsigned long hclkd1;
unsigned long pclkd0;
unsigned long pclkd1;
unsigned long apll;
unsigned long mpll;
unsigned long epll;
unsigned long hpll;
unsigned int ptr;
/* Set S5PC100 functions for clk_fout_epll */
clk_fout_epll.enable = s5p_epll_enable;
clk_fout_epll.ops = &s5pc100_epll_ops;
printk(KERN_DEBUG "%s: registering clocks\n", __func__);
xtal = clk_get_rate(&clk_xtal);
printk(KERN_DEBUG "%s: xtal is %ld\n", __func__, xtal);
apll = s5p_get_pll65xx(xtal, __raw_readl(S5P_APLL_CON));
mpll = s5p_get_pll65xx(xtal, __raw_readl(S5P_MPLL_CON));
epll = s5p_get_pll65xx(xtal, __raw_readl(S5P_EPLL_CON));
hpll = s5p_get_pll65xx(xtal, __raw_readl(S5P_HPLL_CON));
printk(KERN_INFO "S5PC100: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz, E=%ld.%ldMHz, H=%ld.%ldMHz\n",
print_mhz(apll), print_mhz(mpll), print_mhz(epll), print_mhz(hpll));
clk_fout_apll.rate = apll;
clk_fout_mpll.rate = mpll;
clk_fout_epll.rate = epll;
clk_mout_hpll.clk.rate = hpll;
for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
s3c_set_clksrc(&clksrcs[ptr], true);
arm = clk_get_rate(&clk_div_arm.clk);
hclkd0 = clk_get_rate(&clk_div_d0_bus.clk);
pclkd0 = clk_get_rate(&clk_div_pclkd0.clk);
hclkd1 = clk_get_rate(&clk_div_d1_bus.clk);
pclkd1 = clk_get_rate(&clk_div_pclkd1.clk);
printk(KERN_INFO "S5PC100: HCLKD0=%ld.%ldMHz, HCLKD1=%ld.%ldMHz, PCLKD0=%ld.%ldMHz, PCLKD1=%ld.%ldMHz\n",
print_mhz(hclkd0), print_mhz(hclkd1), print_mhz(pclkd0), print_mhz(pclkd1));
clk_f.rate = arm;
clk_h.rate = hclkd1;
clk_p.rate = pclkd1;
}
/*
* The following clocks will be enabled during clock initialization.
*/
static struct clk init_clocks[] = {
{
.name = "tzic",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_0_ctrl,
.ctrlbit = (1 << 1),
}, {
.name = "intc",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_0_ctrl,
.ctrlbit = (1 << 0),
}, {
.name = "ebi",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_1_ctrl,
.ctrlbit = (1 << 5),
}, {
.name = "intmem",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_1_ctrl,
.ctrlbit = (1 << 4),
}, {
.name = "sromc",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_1_ctrl,
.ctrlbit = (1 << 1),
}, {
.name = "dmc",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_1_ctrl,
.ctrlbit = (1 << 0),
}, {
.name = "chipid",
.parent = &clk_div_d0_bus.clk,
.enable = s5pc100_d0_1_ctrl,
.ctrlbit = (1 << 0),
}, {
.name = "gpio",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_3_ctrl,
.ctrlbit = (1 << 1),
}, {
.name = "uart",
.devname = "s3c6400-uart.0",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 0),
}, {
.name = "uart",
.devname = "s3c6400-uart.1",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 1),
}, {
.name = "uart",
.devname = "s3c6400-uart.2",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 2),
}, {
.name = "uart",
.devname = "s3c6400-uart.3",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_4_ctrl,
.ctrlbit = (1 << 3),
}, {
.name = "timers",
.parent = &clk_div_d1_bus.clk,
.enable = s5pc100_d1_3_ctrl,
.ctrlbit = (1 << 6),
},
};
static struct clk *clks[] __initdata = {
&clk_ext,
&clk_i2scdclk0,
&clk_i2scdclk1,
&clk_i2scdclk2,
&clk_pcmcdclk0,
&clk_pcmcdclk1,
};
static struct clk_lookup s5pc100_clk_lookup[] = {
CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uart.clk),
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &clk_hsmmc0),
CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &clk_hsmmc1),
CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.0", &clk_hsmmc2),
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
CLKDEV_INIT("s5pc100-spi.0", "spi_busclk1", &clk_48m_spi0),
CLKDEV_INIT("s5pc100-spi.0", "spi_busclk2", &clk_sclk_spi0.clk),
CLKDEV_INIT("s5pc100-spi.1", "spi_busclk1", &clk_48m_spi1),
CLKDEV_INIT("s5pc100-spi.1", "spi_busclk2", &clk_sclk_spi1.clk),
CLKDEV_INIT("s5pc100-spi.2", "spi_busclk1", &clk_48m_spi2),
CLKDEV_INIT("s5pc100-spi.2", "spi_busclk2", &clk_sclk_spi2.clk),
CLKDEV_INIT("samsung-i2s.0", "i2s_opclk0", &clk_i2s0),
CLKDEV_INIT("samsung-i2s.1", "i2s_opclk0", &clk_i2s1),
CLKDEV_INIT("samsung-i2s.2", "i2s_opclk0", &clk_i2s2),
};
void __init s5pc100_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));
for (ptr = 0; ptr < ARRAY_SIZE(clksrc_cdev); ptr++)
s3c_register_clksrc(clksrc_cdev[ptr], 1);
s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
clkdev_add_table(s5pc100_clk_lookup, ARRAY_SIZE(s5pc100_clk_lookup));
s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
for (ptr = 0; ptr < ARRAY_SIZE(clk_cdev); ptr++)
s3c_disable_clocks(clk_cdev[ptr], 1);
s3c24xx_register_clock(&dummy_apb_pclk);
s3c_pwmclk_init();
}
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