/* * arch/arm/mach-tegra/tegra2_clocks.c * * Copyright (C) 2010 Google, Inc. * Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved. * * Author: * Colin Cross * * 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 #include #include #include #include #include #include #include #include #include #include "clock.h" #include "fuse.h" #include "tegra2_emc.h" #include "tegra20_clocks.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, 594000000, 594, 12, 1, 8}, { 13000000, 594000000, 594, 13, 1, 8}, { 19200000, 594000000, 495, 16, 1, 8}, { 26000000, 594000000, 594, 26, 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 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", NULL, 12, 0x124, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); PERIPH_CLK(i2c2, "tegra-i2c.1", NULL, 54, 0x198, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); PERIPH_CLK(i2c3, "tegra-i2c.2", NULL, 67, 0x1b8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); PERIPH_CLK(dvc, "tegra-i2c.3", NULL, 47, 0x128, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); PERIPH_CLK(i2c1_i2c, "tegra-i2c.0", "i2c", 0, 0, 72000000, mux_pllp_out3, 0); PERIPH_CLK(i2c2_i2c, "tegra-i2c.1", "i2c", 0, 0, 72000000, mux_pllp_out3, 0); PERIPH_CLK(i2c3_i2c, "tegra-i2c.2", "i2c", 0, 0, 72000000, mux_pllp_out3, 0); PERIPH_CLK(dvc_i2c, "tegra-i2c.3", "i2c", 0, 0, 72000000, mux_pllp_out3, 0); 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_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_i2c1_i2c, &tegra_i2c2_i2c, &tegra_i2c3_i2c, &tegra_dvc_i2c, &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("hdmi", "tegradc.0", "hdmi"), CLK_DUPLICATE("hdmi", "tegradc.1", "hdmi"), CLK_DUPLICATE("host1x", "tegra_grhost", "host1x"), 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"), }; #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_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(); }