diff options
Diffstat (limited to 'drivers/clk/tegra/clk-tegra124.c')
| -rw-r--r-- | drivers/clk/tegra/clk-tegra124.c | 151 |
1 files changed, 101 insertions, 50 deletions
diff --git a/drivers/clk/tegra/clk-tegra124.c b/drivers/clk/tegra/clk-tegra124.c index df0018f7bf7e..6c46592d794e 100644 --- a/drivers/clk/tegra/clk-tegra124.c +++ b/drivers/clk/tegra/clk-tegra124.c @@ -1,17 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2012-2014 NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope 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. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/io.h> @@ -38,6 +27,7 @@ #define CLK_SOURCE_CSITE 0x1d4 #define CLK_SOURCE_EMC 0x19c +#define CLK_SOURCE_SOR0 0x414 #define RST_DFLL_DVCO 0x2f4 #define DVFS_DFLL_RESET_SHIFT 0 @@ -102,6 +92,22 @@ /* Tegra CPU clock and reset control regs */ #define CLK_RST_CONTROLLER_CPU_CMPLX_STATUS 0x470 +#define MASK(x) (BIT(x) - 1) + +#define MUX8_NOGATE_LOCK(_name, _parents, _offset, _clk_id, _lock) \ + TEGRA_INIT_DATA_TABLE(_name, NULL, NULL, _parents, _offset, \ + 29, MASK(3), 0, 0, 8, 1, TEGRA_DIVIDER_ROUND_UP,\ + 0, TEGRA_PERIPH_NO_GATE, _clk_id,\ + _parents##_idx, 0, _lock) + +#define NODIV(_name, _parents, _offset, \ + _mux_shift, _mux_mask, _clk_num, \ + _gate_flags, _clk_id, _lock) \ + TEGRA_INIT_DATA_TABLE(_name, NULL, NULL, _parents, _offset,\ + _mux_shift, _mux_mask, 0, 0, 0, 0, 0,\ + _clk_num, (_gate_flags) | TEGRA_PERIPH_NO_DIV,\ + _clk_id, _parents##_idx, 0, _lock) + #ifdef CONFIG_PM_SLEEP static struct cpu_clk_suspend_context { u32 clk_csite_src; @@ -121,6 +127,7 @@ static DEFINE_SPINLOCK(pll_e_lock); static DEFINE_SPINLOCK(pll_re_lock); static DEFINE_SPINLOCK(pll_u_lock); static DEFINE_SPINLOCK(emc_lock); +static DEFINE_SPINLOCK(sor0_lock); /* possible OSC frequencies in Hz */ static unsigned long tegra124_input_freq[] = { @@ -413,7 +420,6 @@ static struct tegra_clk_pll_params pll_m_params = { .base_reg = PLLM_BASE, .misc_reg = PLLM_MISC, .lock_mask = PLL_BASE_LOCK, - .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE, .lock_delay = 300, .max_p = 5, .pdiv_tohw = pllm_p, @@ -421,7 +427,7 @@ static struct tegra_clk_pll_params pll_m_params = { .pmc_divnm_reg = PMC_PLLM_WB0_OVERRIDE, .pmc_divp_reg = PMC_PLLM_WB0_OVERRIDE_2, .freq_table = pll_m_freq_table, - .flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE, + .flags = TEGRA_PLL_USE_LOCK, }; static struct tegra_clk_pll_freq_table pll_e_freq_table[] = { @@ -841,7 +847,7 @@ static struct tegra_clk tegra124_clks[tegra_clk_max] __initdata = { [tegra_clk_adx1] = { .dt_id = TEGRA124_CLK_ADX1, .present = true }, [tegra_clk_dpaux] = { .dt_id = TEGRA124_CLK_DPAUX, .present = true }, [tegra_clk_sor0] = { .dt_id = TEGRA124_CLK_SOR0, .present = true }, - [tegra_clk_sor0_lvds] = { .dt_id = TEGRA124_CLK_SOR0_LVDS, .present = true }, + [tegra_clk_sor0_out] = { .dt_id = TEGRA124_CLK_SOR0_OUT, .present = true }, [tegra_clk_gpu] = { .dt_id = TEGRA124_CLK_GPU, .present = true }, [tegra_clk_amx1] = { .dt_id = TEGRA124_CLK_AMX1, .present = true }, [tegra_clk_uartb] = { .dt_id = TEGRA124_CLK_UARTB, .present = true }, @@ -854,8 +860,9 @@ static struct tegra_clk tegra124_clks[tegra_clk_max] __initdata = { [tegra_clk_fuse_burn] = { .dt_id = TEGRA124_CLK_FUSE_BURN, .present = true }, [tegra_clk_clk_32k] = { .dt_id = TEGRA124_CLK_CLK_32K, .present = true }, [tegra_clk_clk_m] = { .dt_id = TEGRA124_CLK_CLK_M, .present = true }, - [tegra_clk_clk_m_div2] = { .dt_id = TEGRA124_CLK_CLK_M_DIV2, .present = true }, - [tegra_clk_clk_m_div4] = { .dt_id = TEGRA124_CLK_CLK_M_DIV4, .present = true }, + [tegra_clk_osc] = { .dt_id = TEGRA124_CLK_OSC, .present = true }, + [tegra_clk_osc_div2] = { .dt_id = TEGRA124_CLK_OSC_DIV2, .present = true }, + [tegra_clk_osc_div4] = { .dt_id = TEGRA124_CLK_OSC_DIV4, .present = true }, [tegra_clk_pll_ref] = { .dt_id = TEGRA124_CLK_PLL_REF, .present = true }, [tegra_clk_pll_c] = { .dt_id = TEGRA124_CLK_PLL_C, .present = true }, [tegra_clk_pll_c_out1] = { .dt_id = TEGRA124_CLK_PLL_C_OUT1, .present = true }, @@ -896,10 +903,6 @@ static struct tegra_clk tegra124_clks[tegra_clk_max] __initdata = { [tegra_clk_audio3] = { .dt_id = TEGRA124_CLK_AUDIO3, .present = true }, [tegra_clk_audio4] = { .dt_id = TEGRA124_CLK_AUDIO4, .present = true }, [tegra_clk_spdif] = { .dt_id = TEGRA124_CLK_SPDIF, .present = true }, - [tegra_clk_clk_out_1] = { .dt_id = TEGRA124_CLK_CLK_OUT_1, .present = true }, - [tegra_clk_clk_out_2] = { .dt_id = TEGRA124_CLK_CLK_OUT_2, .present = true }, - [tegra_clk_clk_out_3] = { .dt_id = TEGRA124_CLK_CLK_OUT_3, .present = true }, - [tegra_clk_blink] = { .dt_id = TEGRA124_CLK_BLINK, .present = true }, [tegra_clk_xusb_host_src] = { .dt_id = TEGRA124_CLK_XUSB_HOST_SRC, .present = true }, [tegra_clk_xusb_falcon_src] = { .dt_id = TEGRA124_CLK_XUSB_FALCON_SRC, .present = true }, [tegra_clk_xusb_fs_src] = { .dt_id = TEGRA124_CLK_XUSB_FS_SRC, .present = true }, @@ -925,9 +928,6 @@ static struct tegra_clk tegra124_clks[tegra_clk_max] __initdata = { [tegra_clk_audio3_mux] = { .dt_id = TEGRA124_CLK_AUDIO3_MUX, .present = true }, [tegra_clk_audio4_mux] = { .dt_id = TEGRA124_CLK_AUDIO4_MUX, .present = true }, [tegra_clk_spdif_mux] = { .dt_id = TEGRA124_CLK_SPDIF_MUX, .present = true }, - [tegra_clk_clk_out_1_mux] = { .dt_id = TEGRA124_CLK_CLK_OUT_1_MUX, .present = true }, - [tegra_clk_clk_out_2_mux] = { .dt_id = TEGRA124_CLK_CLK_OUT_2_MUX, .present = true }, - [tegra_clk_clk_out_3_mux] = { .dt_id = TEGRA124_CLK_CLK_OUT_3_MUX, .present = true }, [tegra_clk_cec] = { .dt_id = TEGRA124_CLK_CEC, .present = true }, }; @@ -935,8 +935,9 @@ static struct tegra_devclk devclks[] __initdata = { { .con_id = "clk_m", .dt_id = TEGRA124_CLK_CLK_M }, { .con_id = "pll_ref", .dt_id = TEGRA124_CLK_PLL_REF }, { .con_id = "clk_32k", .dt_id = TEGRA124_CLK_CLK_32K }, - { .con_id = "clk_m_div2", .dt_id = TEGRA124_CLK_CLK_M_DIV2 }, - { .con_id = "clk_m_div4", .dt_id = TEGRA124_CLK_CLK_M_DIV4 }, + { .con_id = "osc", .dt_id = TEGRA124_CLK_OSC }, + { .con_id = "osc_div2", .dt_id = TEGRA124_CLK_OSC_DIV2 }, + { .con_id = "osc_div4", .dt_id = TEGRA124_CLK_OSC_DIV4 }, { .con_id = "pll_c", .dt_id = TEGRA124_CLK_PLL_C }, { .con_id = "pll_c_out1", .dt_id = TEGRA124_CLK_PLL_C_OUT1 }, { .con_id = "pll_c2", .dt_id = TEGRA124_CLK_PLL_C2 }, @@ -982,10 +983,9 @@ static struct tegra_devclk devclks[] __initdata = { { .con_id = "audio3_2x", .dt_id = TEGRA124_CLK_AUDIO3_2X }, { .con_id = "audio4_2x", .dt_id = TEGRA124_CLK_AUDIO4_2X }, { .con_id = "spdif_2x", .dt_id = TEGRA124_CLK_SPDIF_2X }, - { .con_id = "extern1", .dev_id = "clk_out_1", .dt_id = TEGRA124_CLK_EXTERN1 }, - { .con_id = "extern2", .dev_id = "clk_out_2", .dt_id = TEGRA124_CLK_EXTERN2 }, - { .con_id = "extern3", .dev_id = "clk_out_3", .dt_id = TEGRA124_CLK_EXTERN3 }, - { .con_id = "blink", .dt_id = TEGRA124_CLK_BLINK }, + { .con_id = "extern1", .dt_id = TEGRA124_CLK_EXTERN1 }, + { .con_id = "extern2", .dt_id = TEGRA124_CLK_EXTERN2 }, + { .con_id = "extern3", .dt_id = TEGRA124_CLK_EXTERN3 }, { .con_id = "cclk_g", .dt_id = TEGRA124_CLK_CCLK_G }, { .con_id = "cclk_lp", .dt_id = TEGRA124_CLK_CCLK_LP }, { .con_id = "sclk", .dt_id = TEGRA124_CLK_SCLK }, @@ -999,12 +999,33 @@ static struct tegra_devclk devclks[] __initdata = { { .con_id = "hda2hdmi", .dt_id = TEGRA124_CLK_HDA2HDMI }, }; +static const char * const sor0_parents[] = { + "pll_p_out0", "pll_m_out0", "pll_d_out0", "pll_a_out0", "pll_c_out0", + "pll_d2_out0", "clk_m", +}; + +static const char * const sor0_out_parents[] = { + "clk_m", "sor0_pad_clkout", +}; + +static struct tegra_periph_init_data tegra124_periph[] = { + TEGRA_INIT_DATA_TABLE("sor0", NULL, NULL, sor0_parents, + CLK_SOURCE_SOR0, 29, 0x7, 0, 0, 0, 0, + 0, 182, 0, tegra_clk_sor0, NULL, 0, + &sor0_lock), + TEGRA_INIT_DATA_TABLE("sor0_out", NULL, NULL, sor0_out_parents, + CLK_SOURCE_SOR0, 14, 0x1, 0, 0, 0, 0, + 0, 0, TEGRA_PERIPH_NO_GATE, tegra_clk_sor0_out, + NULL, 0, &sor0_lock), +}; + static struct clk **clks; static __init void tegra124_periph_clk_init(void __iomem *clk_base, void __iomem *pmc_base) { struct clk *clk; + unsigned int i; /* xusb_ss_div2 */ clk = clk_register_fixed_factor(NULL, "xusb_ss_div2", "xusb_ss_src", 0, @@ -1045,6 +1066,20 @@ static __init void tegra124_periph_clk_init(void __iomem *clk_base, clk_register_clkdev(clk, "cml1", NULL); clks[TEGRA124_CLK_CML1] = clk; + for (i = 0; i < ARRAY_SIZE(tegra124_periph); i++) { + struct tegra_periph_init_data *init = &tegra124_periph[i]; + struct clk **clkp; + + clkp = tegra_lookup_dt_id(init->clk_id, tegra124_clks); + if (!clkp) { + pr_warn("clock %u not found\n", init->clk_id); + continue; + } + + clk = tegra_clk_register_periph_data(clk_base, init); + *clkp = clk; + } + tegra_periph_clk_init(clk_base, pmc_base, tegra124_clks, &pll_p_params); } @@ -1257,11 +1292,8 @@ static struct tegra_clk_init_table common_init_table[] __initdata = { { TEGRA124_CLK_UARTB, TEGRA124_CLK_PLL_P, 408000000, 0 }, { TEGRA124_CLK_UARTC, TEGRA124_CLK_PLL_P, 408000000, 0 }, { TEGRA124_CLK_UARTD, TEGRA124_CLK_PLL_P, 408000000, 0 }, - { TEGRA124_CLK_PLL_A, TEGRA124_CLK_CLK_MAX, 564480000, 1 }, - { TEGRA124_CLK_PLL_A_OUT0, TEGRA124_CLK_CLK_MAX, 11289600, 1 }, - { TEGRA124_CLK_EXTERN1, TEGRA124_CLK_PLL_A_OUT0, 0, 1 }, - { TEGRA124_CLK_CLK_OUT_1_MUX, TEGRA124_CLK_EXTERN1, 0, 1 }, - { TEGRA124_CLK_CLK_OUT_1, TEGRA124_CLK_CLK_MAX, 0, 1 }, + { TEGRA124_CLK_PLL_A, TEGRA124_CLK_CLK_MAX, 282240000, 0 }, + { TEGRA124_CLK_PLL_A_OUT0, TEGRA124_CLK_CLK_MAX, 11289600, 0 }, { TEGRA124_CLK_I2S0, TEGRA124_CLK_PLL_A_OUT0, 11289600, 0 }, { TEGRA124_CLK_I2S1, TEGRA124_CLK_PLL_A_OUT0, 11289600, 0 }, { TEGRA124_CLK_I2S2, TEGRA124_CLK_PLL_A_OUT0, 11289600, 0 }, @@ -1298,6 +1330,7 @@ static struct tegra_clk_init_table common_init_table[] __initdata = { { TEGRA124_CLK_I2S3_SYNC, TEGRA124_CLK_CLK_MAX, 24576000, 0 }, { TEGRA124_CLK_I2S4_SYNC, TEGRA124_CLK_CLK_MAX, 24576000, 0 }, { TEGRA124_CLK_VIMCLK_SYNC, TEGRA124_CLK_CLK_MAX, 24576000, 0 }, + { TEGRA124_CLK_PWM, TEGRA124_CLK_PLL_P, 408000000, 0 }, /* must be the last entry */ { TEGRA124_CLK_CLK_MAX, TEGRA124_CLK_CLK_MAX, 0, 0 }, }; @@ -1416,11 +1449,9 @@ static void __init tegra132_clock_apply_init_table(void) * tegra124_132_clock_init_pre - clock initialization preamble for T124/T132 * @np: struct device_node * of the DT node for the SoC CAR IP block * - * Register most of the clocks controlled by the CAR IP block, along - * with a few clocks controlled by the PMC IP block. Everything in - * this function should be common to Tegra124 and Tegra132. XXX The - * PMC clock initialization should probably be moved to PMC-specific - * driver code. No return value. + * Register most of the clocks controlled by the CAR IP block. + * Everything in this function should be common to Tegra124 and Tegra132. + * No return value. */ static void __init tegra124_132_clock_init_pre(struct device_node *np) { @@ -1441,6 +1472,7 @@ static void __init tegra124_132_clock_init_pre(struct device_node *np) } pmc_base = of_iomap(node, 0); + of_node_put(node); if (!pmc_base) { pr_err("Can't map pmc registers\n"); WARN_ON(1); @@ -1463,23 +1495,42 @@ static void __init tegra124_132_clock_init_pre(struct device_node *np) tegra_audio_clk_init(clk_base, pmc_base, tegra124_clks, tegra124_audio_plls, ARRAY_SIZE(tegra124_audio_plls), 24576000); - tegra_pmc_clk_init(pmc_base, tegra124_clks); /* For Tegra124 & Tegra132, PLLD is the only source for DSIA & DSIB */ - plld_base = clk_readl(clk_base + PLLD_BASE); + plld_base = readl(clk_base + PLLD_BASE); plld_base &= ~BIT(25); - clk_writel(plld_base, clk_base + PLLD_BASE); + writel(plld_base, clk_base + PLLD_BASE); +} + +static struct clk *tegra124_clk_src_onecell_get(struct of_phandle_args *clkspec, + void *data) +{ + struct clk_hw *hw; + struct clk *clk; + + clk = of_clk_src_onecell_get(clkspec, data); + if (IS_ERR(clk)) + return clk; + + hw = __clk_get_hw(clk); + + if (clkspec->args[0] == TEGRA124_CLK_EMC) { + if (!tegra124_clk_emc_driver_available(hw)) + return ERR_PTR(-EPROBE_DEFER); + } + + return clk; } /** * tegra124_132_clock_init_post - clock initialization postamble for T124/T132 * @np: struct device_node * of the DT node for the SoC CAR IP block * - * Register most of the along with a few clocks controlled by the PMC - * IP block. Everything in this function should be common to Tegra124 + * Register most of the clocks controlled by the CAR IP block. + * Everything in this function should be common to Tegra124 * and Tegra132. This function must be called after - * tegra124_132_clock_init_pre(), otherwise clk_base and pmc_base will - * not be set. No return value. + * tegra124_132_clock_init_pre(), otherwise clk_base will not be set. + * No return value. */ static void __init tegra124_132_clock_init_post(struct device_node *np) { @@ -1487,10 +1538,10 @@ static void __init tegra124_132_clock_init_post(struct device_node *np) &pll_x_params); tegra_init_special_resets(1, tegra124_reset_assert, tegra124_reset_deassert); - tegra_add_of_provider(np, of_clk_src_onecell_get); + tegra_add_of_provider(np, tegra124_clk_src_onecell_get); - clks[TEGRA124_CLK_EMC] = tegra_clk_register_emc(clk_base, np, - &emc_lock); + clks[TEGRA124_CLK_EMC] = tegra124_clk_register_emc(clk_base, np, + &emc_lock); tegra_register_devclks(devclks, ARRAY_SIZE(devclks)); |