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linux/arch/arm/mach-tegra/tegra20_clocks_data.c
Thierry Reding 5f10778370 ARM: tegra: Add Tegra20 host1x clock support 
Extend the pll_d frequency table with a few entries to support common
HDMI and LVDS display modes and setup the clock parents for the two
display controllers and HDMI.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-11-15 14:46:26 -07:00

1144 lines
31 KiB
C
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/*
* arch/arm/mach-tegra/tegra2_clocks.c
*
* Copyright (C) 2010 Google, Inc.
* Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved.
*
* Author:
* Colin Cross <ccross@google.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/clk-private.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/clk.h>
#include "clock.h"
#include "fuse.h"
#include "tegra2_emc.h"
#include "tegra20_clocks.h"
#include "tegra_cpu_car.h"
/* Clock definitions */
#define DEFINE_CLK_TEGRA(_name, _rate, _ops, _flags, \
_parent_names, _parents, _parent) \
static struct clk tegra_##_name = { \
.hw = &tegra_##_name##_hw.hw, \
.name = #_name, \
.rate = _rate, \
.ops = _ops, \
.flags = _flags, \
.parent_names = _parent_names, \
.parents = _parents, \
.num_parents = ARRAY_SIZE(_parent_names), \
.parent = _parent, \
};
static struct clk tegra_clk_32k;
static struct clk_tegra tegra_clk_32k_hw = {
.hw = {
.clk = &tegra_clk_32k,
},
.fixed_rate = 32768,
};
static struct clk tegra_clk_32k = {
.name = "clk_32k",
.rate = 32768,
.ops = &tegra_clk_32k_ops,
.hw = &tegra_clk_32k_hw.hw,
.flags = CLK_IS_ROOT,
};
static struct clk tegra_clk_m;
static struct clk_tegra tegra_clk_m_hw = {
.hw = {
.clk = &tegra_clk_m,
},
.flags = ENABLE_ON_INIT,
.reg = 0x1fc,
.reg_shift = 28,
.max_rate = 26000000,
.fixed_rate = 0,
};
static struct clk tegra_clk_m = {
.name = "clk_m",
.ops = &tegra_clk_m_ops,
.hw = &tegra_clk_m_hw.hw,
.flags = CLK_IS_ROOT,
};
#define DEFINE_PLL(_name, _flags, _reg, _max_rate, _input_min, \
_input_max, _cf_min, _cf_max, _vco_min, \
_vco_max, _freq_table, _lock_delay, _ops, \
_fixed_rate, _parent) \
static const char *tegra_##_name##_parent_names[] = { \
#_parent, \
}; \
static struct clk *tegra_##_name##_parents[] = { \
&tegra_##_parent, \
}; \
static struct clk tegra_##_name; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.flags = _flags, \
.reg = _reg, \
.max_rate = _max_rate, \
.u.pll = { \
.input_min = _input_min, \
.input_max = _input_max, \
.cf_min = _cf_min, \
.cf_max = _cf_max, \
.vco_min = _vco_min, \
.vco_max = _vco_max, \
.freq_table = _freq_table, \
.lock_delay = _lock_delay, \
.fixed_rate = _fixed_rate, \
}, \
}; \
static struct clk tegra_##_name = { \
.name = #_name, \
.ops = &_ops, \
.hw = &tegra_##_name##_hw.hw, \
.parent = &tegra_##_parent, \
.parent_names = tegra_##_name##_parent_names, \
.parents = tegra_##_name##_parents, \
.num_parents = 1, \
};
#define DEFINE_PLL_OUT(_name, _flags, _reg, _reg_shift, \
_max_rate, _ops, _parent, _clk_flags) \
static const char *tegra_##_name##_parent_names[] = { \
#_parent, \
}; \
static struct clk *tegra_##_name##_parents[] = { \
&tegra_##_parent, \
}; \
static struct clk tegra_##_name; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.flags = _flags, \
.reg = _reg, \
.max_rate = _max_rate, \
.reg_shift = _reg_shift, \
}; \
static struct clk tegra_##_name = { \
.name = #_name, \
.ops = &tegra_pll_div_ops, \
.hw = &tegra_##_name##_hw.hw, \
.parent = &tegra_##_parent, \
.parent_names = tegra_##_name##_parent_names, \
.parents = tegra_##_name##_parents, \
.num_parents = 1, \
.flags = _clk_flags, \
};
static struct clk_pll_freq_table tegra_pll_s_freq_table[] = {
{32768, 12000000, 366, 1, 1, 0},
{32768, 13000000, 397, 1, 1, 0},
{32768, 19200000, 586, 1, 1, 0},
{32768, 26000000, 793, 1, 1, 0},
{0, 0, 0, 0, 0, 0},
};
DEFINE_PLL(pll_s, PLL_ALT_MISC_REG, 0xf0, 26000000, 32768, 32768, 0,
0, 12000000, 26000000, tegra_pll_s_freq_table, 300,
tegra_pll_ops, 0, clk_32k);
static struct clk_pll_freq_table tegra_pll_c_freq_table[] = {
{ 12000000, 600000000, 600, 12, 1, 8 },
{ 13000000, 600000000, 600, 13, 1, 8 },
{ 19200000, 600000000, 500, 16, 1, 6 },
{ 26000000, 600000000, 600, 26, 1, 8 },
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_c, PLL_HAS_CPCON, 0x80, 600000000, 2000000, 31000000, 1000000,
6000000, 20000000, 1400000000, tegra_pll_c_freq_table, 300,
tegra_pll_ops, 0, clk_m);
DEFINE_PLL_OUT(pll_c_out1, DIV_U71, 0x84, 0, 600000000,
tegra_pll_div_ops, pll_c, 0);
static struct clk_pll_freq_table tegra_pll_m_freq_table[] = {
{ 12000000, 666000000, 666, 12, 1, 8},
{ 13000000, 666000000, 666, 13, 1, 8},
{ 19200000, 666000000, 555, 16, 1, 8},
{ 26000000, 666000000, 666, 26, 1, 8},
{ 12000000, 600000000, 600, 12, 1, 8},
{ 13000000, 600000000, 600, 13, 1, 8},
{ 19200000, 600000000, 375, 12, 1, 6},
{ 26000000, 600000000, 600, 26, 1, 8},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_m, PLL_HAS_CPCON, 0x90, 800000000, 2000000, 31000000, 1000000,
6000000, 20000000, 1200000000, tegra_pll_m_freq_table, 300,
tegra_pll_ops, 0, clk_m);
DEFINE_PLL_OUT(pll_m_out1, DIV_U71, 0x94, 0, 600000000,
tegra_pll_div_ops, pll_m, 0);
static struct clk_pll_freq_table tegra_pll_p_freq_table[] = {
{ 12000000, 216000000, 432, 12, 2, 8},
{ 13000000, 216000000, 432, 13, 2, 8},
{ 19200000, 216000000, 90, 4, 2, 1},
{ 26000000, 216000000, 432, 26, 2, 8},
{ 12000000, 432000000, 432, 12, 1, 8},
{ 13000000, 432000000, 432, 13, 1, 8},
{ 19200000, 432000000, 90, 4, 1, 1},
{ 26000000, 432000000, 432, 26, 1, 8},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_p, ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, 0xa0, 432000000,
2000000, 31000000, 1000000, 6000000, 20000000, 1400000000,
tegra_pll_p_freq_table, 300, tegra_pll_ops, 216000000, clk_m);
DEFINE_PLL_OUT(pll_p_out1, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, 0,
432000000, tegra_pll_div_ops, pll_p, 0);
DEFINE_PLL_OUT(pll_p_out2, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, 16,
432000000, tegra_pll_div_ops, pll_p, 0);
DEFINE_PLL_OUT(pll_p_out3, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, 0,
432000000, tegra_pll_div_ops, pll_p, 0);
DEFINE_PLL_OUT(pll_p_out4, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, 16,
432000000, tegra_pll_div_ops, pll_p, 0);
static struct clk_pll_freq_table tegra_pll_a_freq_table[] = {
{ 28800000, 56448000, 49, 25, 1, 1},
{ 28800000, 73728000, 64, 25, 1, 1},
{ 28800000, 24000000, 5, 6, 1, 1},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_a, PLL_HAS_CPCON, 0xb0, 73728000, 2000000, 31000000, 1000000,
6000000, 20000000, 1400000000, tegra_pll_a_freq_table, 300,
tegra_pll_ops, 0, pll_p_out1);
DEFINE_PLL_OUT(pll_a_out0, DIV_U71, 0xb4, 0, 73728000,
tegra_pll_div_ops, pll_a, 0);
static struct clk_pll_freq_table tegra_pll_d_freq_table[] = {
{ 12000000, 216000000, 216, 12, 1, 4},
{ 13000000, 216000000, 216, 13, 1, 4},
{ 19200000, 216000000, 135, 12, 1, 3},
{ 26000000, 216000000, 216, 26, 1, 4},
{ 12000000, 297000000, 99, 4, 1, 4 },
{ 12000000, 339000000, 113, 4, 1, 4 },
{ 12000000, 594000000, 594, 12, 1, 8},
{ 13000000, 594000000, 594, 13, 1, 8},
{ 19200000, 594000000, 495, 16, 1, 8},
{ 26000000, 594000000, 594, 26, 1, 8},
{ 12000000, 616000000, 616, 12, 1, 8},
{ 12000000, 1000000000, 1000, 12, 1, 12},
{ 13000000, 1000000000, 1000, 13, 1, 12},
{ 19200000, 1000000000, 625, 12, 1, 8},
{ 26000000, 1000000000, 1000, 26, 1, 12},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_d, PLL_HAS_CPCON | PLLD, 0xd0, 1000000000, 2000000, 40000000,
1000000, 6000000, 40000000, 1000000000, tegra_pll_d_freq_table,
1000, tegra_pll_ops, 0, clk_m);
DEFINE_PLL_OUT(pll_d_out0, DIV_2 | PLLD, 0, 0, 500000000,
tegra_pll_div_ops, pll_d, CLK_SET_RATE_PARENT);
static struct clk_pll_freq_table tegra_pll_u_freq_table[] = {
{ 12000000, 480000000, 960, 12, 2, 0},
{ 13000000, 480000000, 960, 13, 2, 0},
{ 19200000, 480000000, 200, 4, 2, 0},
{ 26000000, 480000000, 960, 26, 2, 0},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_u, PLLU, 0xc0, 480000000, 2000000, 40000000, 1000000, 6000000,
48000000, 960000000, tegra_pll_u_freq_table, 1000,
tegra_pll_ops, 0, clk_m);
static struct clk_pll_freq_table tegra_pll_x_freq_table[] = {
/* 1 GHz */
{ 12000000, 1000000000, 1000, 12, 1, 12},
{ 13000000, 1000000000, 1000, 13, 1, 12},
{ 19200000, 1000000000, 625, 12, 1, 8},
{ 26000000, 1000000000, 1000, 26, 1, 12},
/* 912 MHz */
{ 12000000, 912000000, 912, 12, 1, 12},
{ 13000000, 912000000, 912, 13, 1, 12},
{ 19200000, 912000000, 760, 16, 1, 8},
{ 26000000, 912000000, 912, 26, 1, 12},
/* 816 MHz */
{ 12000000, 816000000, 816, 12, 1, 12},
{ 13000000, 816000000, 816, 13, 1, 12},
{ 19200000, 816000000, 680, 16, 1, 8},
{ 26000000, 816000000, 816, 26, 1, 12},
/* 760 MHz */
{ 12000000, 760000000, 760, 12, 1, 12},
{ 13000000, 760000000, 760, 13, 1, 12},
{ 19200000, 760000000, 950, 24, 1, 8},
{ 26000000, 760000000, 760, 26, 1, 12},
/* 750 MHz */
{ 12000000, 750000000, 750, 12, 1, 12},
{ 13000000, 750000000, 750, 13, 1, 12},
{ 19200000, 750000000, 625, 16, 1, 8},
{ 26000000, 750000000, 750, 26, 1, 12},
/* 608 MHz */
{ 12000000, 608000000, 608, 12, 1, 12},
{ 13000000, 608000000, 608, 13, 1, 12},
{ 19200000, 608000000, 380, 12, 1, 8},
{ 26000000, 608000000, 608, 26, 1, 12},
/* 456 MHz */
{ 12000000, 456000000, 456, 12, 1, 12},
{ 13000000, 456000000, 456, 13, 1, 12},
{ 19200000, 456000000, 380, 16, 1, 8},
{ 26000000, 456000000, 456, 26, 1, 12},
/* 312 MHz */
{ 12000000, 312000000, 312, 12, 1, 12},
{ 13000000, 312000000, 312, 13, 1, 12},
{ 19200000, 312000000, 260, 16, 1, 8},
{ 26000000, 312000000, 312, 26, 1, 12},
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_x, PLL_HAS_CPCON | PLL_ALT_MISC_REG, 0xe0, 1000000000, 2000000,
31000000, 1000000, 6000000, 20000000, 1200000000,
tegra_pll_x_freq_table, 300, tegra_pllx_ops, 0, clk_m);
static struct clk_pll_freq_table tegra_pll_e_freq_table[] = {
{ 12000000, 100000000, 200, 24, 1, 0 },
{ 0, 0, 0, 0, 0, 0 },
};
DEFINE_PLL(pll_e, PLL_ALT_MISC_REG, 0xe8, 100000000, 12000000, 12000000, 0, 0,
0, 0, tegra_pll_e_freq_table, 0, tegra_plle_ops, 0, clk_m);
static const char *tegra_common_parent_names[] = {
"clk_m",
};
static struct clk *tegra_common_parents[] = {
&tegra_clk_m,
};
static struct clk tegra_clk_d;
static struct clk_tegra tegra_clk_d_hw = {
.hw = {
.clk = &tegra_clk_d,
},
.flags = PERIPH_NO_RESET,
.reg = 0x34,
.reg_shift = 12,
.max_rate = 52000000,
.u.periph = {
.clk_num = 90,
},
};
static struct clk tegra_clk_d = {
.name = "clk_d",
.hw = &tegra_clk_d_hw.hw,
.ops = &tegra_clk_double_ops,
.parent = &tegra_clk_m,
.parent_names = tegra_common_parent_names,
.parents = tegra_common_parents,
.num_parents = ARRAY_SIZE(tegra_common_parent_names),
};
static struct clk tegra_cdev1;
static struct clk_tegra tegra_cdev1_hw = {
.hw = {
.clk = &tegra_cdev1,
},
.fixed_rate = 26000000,
.u.periph = {
.clk_num = 94,
},
};
static struct clk tegra_cdev1 = {
.name = "cdev1",
.hw = &tegra_cdev1_hw.hw,
.ops = &tegra_cdev_clk_ops,
.flags = CLK_IS_ROOT,
};
/* dap_mclk2, belongs to the cdev2 pingroup. */
static struct clk tegra_cdev2;
static struct clk_tegra tegra_cdev2_hw = {
.hw = {
.clk = &tegra_cdev2,
},
.fixed_rate = 26000000,
.u.periph = {
.clk_num = 93,
},
};
static struct clk tegra_cdev2 = {
.name = "cdev2",
.hw = &tegra_cdev2_hw.hw,
.ops = &tegra_cdev_clk_ops,
.flags = CLK_IS_ROOT,
};
/* initialized before peripheral clocks */
static struct clk_mux_sel mux_audio_sync_clk[8+1];
static const struct audio_sources {
const char *name;
int value;
} mux_audio_sync_clk_sources[] = {
{ .name = "spdif_in", .value = 0 },
{ .name = "i2s1", .value = 1 },
{ .name = "i2s2", .value = 2 },
{ .name = "pll_a_out0", .value = 4 },
#if 0 /* FIXME: not implemented */
{ .name = "ac97", .value = 3 },
{ .name = "ext_audio_clk2", .value = 5 },
{ .name = "ext_audio_clk1", .value = 6 },
{ .name = "ext_vimclk", .value = 7 },
#endif
{ NULL, 0 }
};
static const char *audio_parent_names[] = {
"spdif_in",
"i2s1",
"i2s2",
"dummy",
"pll_a_out0",
"dummy",
"dummy",
"dummy",
};
static struct clk *audio_parents[] = {
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
};
static struct clk tegra_audio;
static struct clk_tegra tegra_audio_hw = {
.hw = {
.clk = &tegra_audio,
},
.reg = 0x38,
.max_rate = 73728000,
};
DEFINE_CLK_TEGRA(audio, 0, &tegra_audio_sync_clk_ops, 0, audio_parent_names,
audio_parents, NULL);
static const char *audio_2x_parent_names[] = {
"audio",
};
static struct clk *audio_2x_parents[] = {
&tegra_audio,
};
static struct clk tegra_audio_2x;
static struct clk_tegra tegra_audio_2x_hw = {
.hw = {
.clk = &tegra_audio_2x,
},
.flags = PERIPH_NO_RESET,
.max_rate = 48000000,
.reg = 0x34,
.reg_shift = 8,
.u.periph = {
.clk_num = 89,
},
};
DEFINE_CLK_TEGRA(audio_2x, 0, &tegra_clk_double_ops, 0, audio_2x_parent_names,
audio_2x_parents, &tegra_audio);
static struct clk_lookup tegra_audio_clk_lookups[] = {
{ .con_id = "audio", .clk = &tegra_audio },
{ .con_id = "audio_2x", .clk = &tegra_audio_2x }
};
/* This is called after peripheral clocks are initialized, as the
* audio_sync clock depends on some of the peripheral clocks.
*/
static void init_audio_sync_clock_mux(void)
{
int i;
struct clk_mux_sel *sel = mux_audio_sync_clk;
const struct audio_sources *src = mux_audio_sync_clk_sources;
struct clk_lookup *lookup;
for (i = 0; src->name; i++, sel++, src++) {
sel->input = tegra_get_clock_by_name(src->name);
if (!sel->input)
pr_err("%s: could not find clk %s\n", __func__,
src->name);
audio_parents[src->value] = sel->input;
sel->value = src->value;
}
lookup = tegra_audio_clk_lookups;
for (i = 0; i < ARRAY_SIZE(tegra_audio_clk_lookups); i++, lookup++) {
struct clk *c = lookup->clk;
struct clk_tegra *clk = to_clk_tegra(c->hw);
__clk_init(NULL, c);
INIT_LIST_HEAD(&clk->shared_bus_list);
clk->lookup.con_id = lookup->con_id;
clk->lookup.clk = c;
clkdev_add(&clk->lookup);
tegra_clk_add(c);
}
}
static const char *mux_cclk[] = {
"clk_m",
"pll_c",
"clk_32k",
"pll_m",
"pll_p",
"pll_p_out4",
"pll_p_out3",
"clk_d",
"pll_x",
};
static struct clk *mux_cclk_p[] = {
&tegra_clk_m,
&tegra_pll_c,
&tegra_clk_32k,
&tegra_pll_m,
&tegra_pll_p,
&tegra_pll_p_out4,
&tegra_pll_p_out3,
&tegra_clk_d,
&tegra_pll_x,
};
static const char *mux_sclk[] = {
"clk_m",
"pll_c_out1",
"pll_p_out4",
"pllp_p_out3",
"pll_p_out2",
"clk_d",
"clk_32k",
"pll_m_out1",
};
static struct clk *mux_sclk_p[] = {
&tegra_clk_m,
&tegra_pll_c_out1,
&tegra_pll_p_out4,
&tegra_pll_p_out3,
&tegra_pll_p_out2,
&tegra_clk_d,
&tegra_clk_32k,
&tegra_pll_m_out1,
};
static struct clk tegra_cclk;
static struct clk_tegra tegra_cclk_hw = {
.hw = {
.clk = &tegra_cclk,
},
.reg = 0x20,
.max_rate = 1000000000,
};
DEFINE_CLK_TEGRA(cclk, 0, &tegra_super_ops, 0, mux_cclk,
mux_cclk_p, NULL);
static const char *mux_twd[] = {
"cclk",
};
static struct clk *mux_twd_p[] = {
&tegra_cclk,
};
static struct clk tegra_clk_twd;
static struct clk_tegra tegra_clk_twd_hw = {
.hw = {
.clk = &tegra_clk_twd,
},
.max_rate = 1000000000,
.mul = 1,
.div = 4,
};
static struct clk tegra_clk_twd = {
.name = "twd",
.ops = &tegra_twd_ops,
.hw = &tegra_clk_twd_hw.hw,
.parent = &tegra_cclk,
.parent_names = mux_twd,
.parents = mux_twd_p,
.num_parents = ARRAY_SIZE(mux_twd),
};
static struct clk tegra_sclk;
static struct clk_tegra tegra_sclk_hw = {
.hw = {
.clk = &tegra_sclk,
},
.reg = 0x28,
.max_rate = 240000000,
.min_rate = 120000000,
};
DEFINE_CLK_TEGRA(sclk, 0, &tegra_super_ops, 0, mux_sclk,
mux_sclk_p, NULL);
static const char *tegra_cop_parent_names[] = {
"tegra_sclk",
};
static struct clk *tegra_cop_parents[] = {
&tegra_sclk,
};
static struct clk tegra_cop;
static struct clk_tegra tegra_cop_hw = {
.hw = {
.clk = &tegra_cop,
},
.max_rate = 240000000,
.reset = &tegra2_cop_clk_reset,
};
DEFINE_CLK_TEGRA(cop, 0, &tegra_cop_ops, CLK_SET_RATE_PARENT,
tegra_cop_parent_names, tegra_cop_parents, &tegra_sclk);
static const char *tegra_hclk_parent_names[] = {
"tegra_sclk",
};
static struct clk *tegra_hclk_parents[] = {
&tegra_sclk,
};
static struct clk tegra_hclk;
static struct clk_tegra tegra_hclk_hw = {
.hw = {
.clk = &tegra_hclk,
},
.flags = DIV_BUS,
.reg = 0x30,
.reg_shift = 4,
.max_rate = 240000000,
};
DEFINE_CLK_TEGRA(hclk, 0, &tegra_bus_ops, 0, tegra_hclk_parent_names,
tegra_hclk_parents, &tegra_sclk);
static const char *tegra_pclk_parent_names[] = {
"tegra_hclk",
};
static struct clk *tegra_pclk_parents[] = {
&tegra_hclk,
};
static struct clk tegra_pclk;
static struct clk_tegra tegra_pclk_hw = {
.hw = {
.clk = &tegra_pclk,
},
.flags = DIV_BUS,
.reg = 0x30,
.reg_shift = 0,
.max_rate = 120000000,
};
DEFINE_CLK_TEGRA(pclk, 0, &tegra_bus_ops, 0, tegra_pclk_parent_names,
tegra_pclk_parents, &tegra_hclk);
static const char *tegra_blink_parent_names[] = {
"clk_32k",
};
static struct clk *tegra_blink_parents[] = {
&tegra_clk_32k,
};
static struct clk tegra_blink;
static struct clk_tegra tegra_blink_hw = {
.hw = {
.clk = &tegra_blink,
},
.reg = 0x40,
.max_rate = 32768,
};
DEFINE_CLK_TEGRA(blink, 0, &tegra_blink_clk_ops, 0, tegra_blink_parent_names,
tegra_blink_parents, &tegra_clk_32k);
static const char *mux_pllm_pllc_pllp_plla[] = {
"pll_m",
"pll_c",
"pll_p",
"pll_a_out0",
};
static struct clk *mux_pllm_pllc_pllp_plla_p[] = {
&tegra_pll_m,
&tegra_pll_c,
&tegra_pll_p,
&tegra_pll_a_out0,
};
static const char *mux_pllm_pllc_pllp_clkm[] = {
"pll_m",
"pll_c",
"pll_p",
"clk_m",
};
static struct clk *mux_pllm_pllc_pllp_clkm_p[] = {
&tegra_pll_m,
&tegra_pll_c,
&tegra_pll_p,
&tegra_clk_m,
};
static const char *mux_pllp_pllc_pllm_clkm[] = {
"pll_p",
"pll_c",
"pll_m",
"clk_m",
};
static struct clk *mux_pllp_pllc_pllm_clkm_p[] = {
&tegra_pll_p,
&tegra_pll_c,
&tegra_pll_m,
&tegra_clk_m,
};
static const char *mux_pllaout0_audio2x_pllp_clkm[] = {
"pll_a_out0",
"audio_2x",
"pll_p",
"clk_m",
};
static struct clk *mux_pllaout0_audio2x_pllp_clkm_p[] = {
&tegra_pll_a_out0,
&tegra_audio_2x,
&tegra_pll_p,
&tegra_clk_m,
};
static const char *mux_pllp_plld_pllc_clkm[] = {
"pllp",
"pll_d_out0",
"pll_c",
"clk_m",
};
static struct clk *mux_pllp_plld_pllc_clkm_p[] = {
&tegra_pll_p,
&tegra_pll_d_out0,
&tegra_pll_c,
&tegra_clk_m,
};
static const char *mux_pllp_pllc_audio_clkm_clk32[] = {
"pll_p",
"pll_c",
"audio",
"clk_m",
"clk_32k",
};
static struct clk *mux_pllp_pllc_audio_clkm_clk32_p[] = {
&tegra_pll_p,
&tegra_pll_c,
&tegra_audio,
&tegra_clk_m,
&tegra_clk_32k,
};
static const char *mux_pllp_pllc_pllm[] = {
"pll_p",
"pll_c",
"pll_m"
};
static struct clk *mux_pllp_pllc_pllm_p[] = {
&tegra_pll_p,
&tegra_pll_c,
&tegra_pll_m,
};
static const char *mux_clk_m[] = {
"clk_m",
};
static struct clk *mux_clk_m_p[] = {
&tegra_clk_m,
};
static const char *mux_pllp_out3[] = {
"pll_p_out3",
};
static struct clk *mux_pllp_out3_p[] = {
&tegra_pll_p_out3,
};
static const char *mux_plld[] = {
"pll_d",
};
static struct clk *mux_plld_p[] = {
&tegra_pll_d,
};
static const char *mux_clk_32k[] = {
"clk_32k",
};
static struct clk *mux_clk_32k_p[] = {
&tegra_clk_32k,
};
static const char *mux_pclk[] = {
"pclk",
};
static struct clk *mux_pclk_p[] = {
&tegra_pclk,
};
static struct clk tegra_emc;
static struct clk_tegra tegra_emc_hw = {
.hw = {
.clk = &tegra_emc,
},
.reg = 0x19c,
.max_rate = 800000000,
.flags = MUX | DIV_U71 | PERIPH_EMC_ENB,
.reset = &tegra2_periph_clk_reset,
.u.periph = {
.clk_num = 57,
},
};
DEFINE_CLK_TEGRA(emc, 0, &tegra_emc_clk_ops, 0, mux_pllm_pllc_pllp_clkm,
mux_pllm_pllc_pllp_clkm_p, NULL);
#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, \
_max, _inputs, _flags) \
static struct clk tegra_##_name; \
static struct clk_tegra tegra_##_name##_hw = { \
.hw = { \
.clk = &tegra_##_name, \
}, \
.lookup = { \
.dev_id = _dev, \
.con_id = _con, \
}, \
.reg = _reg, \
.flags = _flags, \
.max_rate = _max, \
.u.periph = { \
.clk_num = _clk_num, \
}, \
.reset = tegra2_periph_clk_reset, \
}; \
static struct clk tegra_##_name = { \
.name = #_name, \
.ops = &tegra_periph_clk_ops, \
.hw = &tegra_##_name##_hw.hw, \
.parent_names = _inputs, \
.parents = _inputs##_p, \
.num_parents = ARRAY_SIZE(_inputs), \
};
PERIPH_CLK(apbdma, "tegra-apbdma", NULL, 34, 0, 108000000, mux_pclk, 0);
PERIPH_CLK(rtc, "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET);
PERIPH_CLK(timer, "timer", NULL, 5, 0, 26000000, mux_clk_m, 0);
PERIPH_CLK(i2s1, "tegra20-i2s.0", NULL, 11, 0x100, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71);
PERIPH_CLK(i2s2, "tegra20-i2s.1", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71);
PERIPH_CLK(spdif_out, "spdif_out", NULL, 10, 0x108, 100000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71);
PERIPH_CLK(spdif_in, "spdif_in", NULL, 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71);
PERIPH_CLK(pwm, "tegra-pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_audio_clkm_clk32, MUX | DIV_U71 | MUX_PWM);
PERIPH_CLK(spi, "spi", NULL, 43, 0x114, 40000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(xio, "xio", NULL, 45, 0x120, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(twc, "twc", NULL, 16, 0x12c, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sbc1, "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sbc2, "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sbc3, "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sbc4, "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(ide, "ide", NULL, 25, 0x144, 100000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(ndflash, "tegra_nand", NULL, 13, 0x160, 164000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(vfir, "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(sdmmc1, "sdhci-tegra.0", NULL, 14, 0x150, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(sdmmc2, "sdhci-tegra.1", NULL, 9, 0x154, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(sdmmc3, "sdhci-tegra.2", NULL, 69, 0x1bc, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(sdmmc4, "sdhci-tegra.3", NULL, 15, 0x164, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(vcp, "tegra-avp", "vcp", 29, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(bsea, "tegra-avp", "bsea", 62, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(bsev, "tegra-aes", "bsev", 63, 0, 250000000, mux_clk_m, 0);
PERIPH_CLK(vde, "tegra-avp", "vde", 61, 0x1c8, 250000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(csite, "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* max rate ??? */
/* FIXME: what is la? */
PERIPH_CLK(la, "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(owr, "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71);
PERIPH_CLK(nor, "nor", NULL, 42, 0x1d0, 92000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(mipi, "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */
PERIPH_CLK(i2c1, "tegra-i2c.0", "div-clk", 12, 0x124, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16);
PERIPH_CLK(i2c2, "tegra-i2c.1", "div-clk", 54, 0x198, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16);
PERIPH_CLK(i2c3, "tegra-i2c.2", "div-clk", 67, 0x1b8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16);
PERIPH_CLK(dvc, "tegra-i2c.3", "div-clk", 47, 0x128, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16);
PERIPH_CLK(uarta, "tegra-uart.0", NULL, 6, 0x178, 600000000, mux_pllp_pllc_pllm_clkm, MUX);
PERIPH_CLK(uartb, "tegra-uart.1", NULL, 7, 0x17c, 600000000, mux_pllp_pllc_pllm_clkm, MUX);
PERIPH_CLK(uartc, "tegra-uart.2", NULL, 55, 0x1a0, 600000000, mux_pllp_pllc_pllm_clkm, MUX);
PERIPH_CLK(uartd, "tegra-uart.3", NULL, 65, 0x1c0, 600000000, mux_pllp_pllc_pllm_clkm, MUX);
PERIPH_CLK(uarte, "tegra-uart.4", NULL, 66, 0x1c4, 600000000, mux_pllp_pllc_pllm_clkm, MUX);
PERIPH_CLK(3d, "3d", NULL, 24, 0x158, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_MANUAL_RESET); /* scales with voltage and process_id */
PERIPH_CLK(2d, "2d", NULL, 21, 0x15c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(vi, "tegra_camera", "vi", 20, 0x148, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(vi_sensor, "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET); /* scales with voltage and process_id */
PERIPH_CLK(epp, "epp", NULL, 19, 0x16c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(mpe, "mpe", NULL, 60, 0x170, 250000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(host1x, "host1x", NULL, 28, 0x180, 166000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
PERIPH_CLK(cve, "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(tvo, "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(hdmi, "hdmi", NULL, 51, 0x18c, 600000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(tvdac, "tvdac", NULL, 53, 0x194, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
PERIPH_CLK(disp1, "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */
PERIPH_CLK(disp2, "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */
PERIPH_CLK(usbd, "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
PERIPH_CLK(usb2, "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
PERIPH_CLK(usb3, "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
PERIPH_CLK(dsi, "dsi", NULL, 48, 0, 500000000, mux_plld, 0); /* scales with voltage */
PERIPH_CLK(csi, "tegra_camera", "csi", 52, 0, 72000000, mux_pllp_out3, 0);
PERIPH_CLK(isp, "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0); /* same frequency as VI */
PERIPH_CLK(csus, "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET);
PERIPH_CLK(pex, NULL, "pex", 70, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET);
PERIPH_CLK(afi, NULL, "afi", 72, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET);
PERIPH_CLK(pcie_xclk, NULL, "pcie_xclk", 74, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET);
static struct clk *tegra_list_clks[] = {
&tegra_apbdma,
&tegra_rtc,
&tegra_timer,
&tegra_i2s1,
&tegra_i2s2,
&tegra_spdif_out,
&tegra_spdif_in,
&tegra_pwm,
&tegra_spi,
&tegra_xio,
&tegra_twc,
&tegra_sbc1,
&tegra_sbc2,
&tegra_sbc3,
&tegra_sbc4,
&tegra_ide,
&tegra_ndflash,
&tegra_vfir,
&tegra_sdmmc1,
&tegra_sdmmc2,
&tegra_sdmmc3,
&tegra_sdmmc4,
&tegra_vcp,
&tegra_bsea,
&tegra_bsev,
&tegra_vde,
&tegra_csite,
&tegra_la,
&tegra_owr,
&tegra_nor,
&tegra_mipi,
&tegra_i2c1,
&tegra_i2c2,
&tegra_i2c3,
&tegra_dvc,
&tegra_uarta,
&tegra_uartb,
&tegra_uartc,
&tegra_uartd,
&tegra_uarte,
&tegra_3d,
&tegra_2d,
&tegra_vi,
&tegra_vi_sensor,
&tegra_epp,
&tegra_mpe,
&tegra_host1x,
&tegra_cve,
&tegra_tvo,
&tegra_hdmi,
&tegra_tvdac,
&tegra_disp1,
&tegra_disp2,
&tegra_usbd,
&tegra_usb2,
&tegra_usb3,
&tegra_dsi,
&tegra_csi,
&tegra_isp,
&tegra_csus,
&tegra_pex,
&tegra_afi,
&tegra_pcie_xclk,
};
#define CLK_DUPLICATE(_name, _dev, _con) \
{ \
.name = _name, \
.lookup = { \
.dev_id = _dev, \
.con_id = _con, \
}, \
}
/* Some clocks may be used by different drivers depending on the board
* configuration. List those here to register them twice in the clock lookup
* table under two names.
*/
static struct clk_duplicate tegra_clk_duplicates[] = {
CLK_DUPLICATE("uarta", "serial8250.0", NULL),
CLK_DUPLICATE("uartb", "serial8250.1", NULL),
CLK_DUPLICATE("uartc", "serial8250.2", NULL),
CLK_DUPLICATE("uartd", "serial8250.3", NULL),
CLK_DUPLICATE("uarte", "serial8250.4", NULL),
CLK_DUPLICATE("usbd", "utmip-pad", NULL),
CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL),
CLK_DUPLICATE("usbd", "tegra-otg", NULL),
CLK_DUPLICATE("2d", "tegra_grhost", "gr2d"),
CLK_DUPLICATE("3d", "tegra_grhost", "gr3d"),
CLK_DUPLICATE("epp", "tegra_grhost", "epp"),
CLK_DUPLICATE("mpe", "tegra_grhost", "mpe"),
CLK_DUPLICATE("cop", "tegra-avp", "cop"),
CLK_DUPLICATE("vde", "tegra-aes", "vde"),
CLK_DUPLICATE("cclk", NULL, "cpu"),
CLK_DUPLICATE("twd", "smp_twd", NULL),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.0", "fast-clk"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.1", "fast-clk"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.2", "fast-clk"),
CLK_DUPLICATE("pll_p_out3", "tegra-i2c.3", "fast-clk"),
CLK_DUPLICATE("pll_p", "tegradc.0", "parent"),
CLK_DUPLICATE("pll_p", "tegradc.1", "parent"),
CLK_DUPLICATE("pll_d_out0", "hdmi", "parent"),
};
#define CLK(dev, con, ck) \
{ \
.dev_id = dev, \
.con_id = con, \
.clk = ck, \
}
static struct clk *tegra_ptr_clks[] = {
&tegra_clk_32k,
&tegra_pll_s,
&tegra_clk_m,
&tegra_pll_m,
&tegra_pll_m_out1,
&tegra_pll_c,
&tegra_pll_c_out1,
&tegra_pll_p,
&tegra_pll_p_out1,
&tegra_pll_p_out2,
&tegra_pll_p_out3,
&tegra_pll_p_out4,
&tegra_pll_a,
&tegra_pll_a_out0,
&tegra_pll_d,
&tegra_pll_d_out0,
&tegra_pll_u,
&tegra_pll_x,
&tegra_pll_e,
&tegra_cclk,
&tegra_clk_twd,
&tegra_sclk,
&tegra_hclk,
&tegra_pclk,
&tegra_clk_d,
&tegra_cdev1,
&tegra_cdev2,
&tegra_blink,
&tegra_cop,
&tegra_emc,
};
static void tegra2_init_one_clock(struct clk *c)
{
struct clk_tegra *clk = to_clk_tegra(c->hw);
int ret;
ret = __clk_init(NULL, c);
if (ret)
pr_err("clk init failed %s\n", __clk_get_name(c));
INIT_LIST_HEAD(&clk->shared_bus_list);
if (!clk->lookup.dev_id && !clk->lookup.con_id)
clk->lookup.con_id = c->name;
clk->lookup.clk = c;
clkdev_add(&clk->lookup);
tegra_clk_add(c);
}
void __init tegra2_init_clocks(void)
{
int i;
struct clk *c;
for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++)
tegra2_init_one_clock(tegra_ptr_clks[i]);
for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++)
tegra2_init_one_clock(tegra_list_clks[i]);
for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) {
c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name);
if (!c) {
pr_err("%s: Unknown duplicate clock %s\n", __func__,
tegra_clk_duplicates[i].name);
continue;
}
tegra_clk_duplicates[i].lookup.clk = c;
clkdev_add(&tegra_clk_duplicates[i].lookup);
}
init_audio_sync_clock_mux();
tegra20_cpu_car_ops_init();
}
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