From patchwork Tue Jul 17 22:27:52 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 10530947 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3B2C260247 for ; Tue, 17 Jul 2018 22:29:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2C5C42914F for ; Tue, 17 Jul 2018 22:29:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 209AF29160; Tue, 17 Jul 2018 22:29:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5A7CB2914F for ; Tue, 17 Jul 2018 22:29:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731631AbeGQXDR (ORCPT ); Tue, 17 Jul 2018 19:03:17 -0400 Received: from mail.bootlin.com ([62.4.15.54]:59114 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731442AbeGQXDQ (ORCPT ); Tue, 17 Jul 2018 19:03:16 -0400 Received: by mail.bootlin.com (Postfix, from userid 110) id 8F46920904; Wed, 18 Jul 2018 00:28:27 +0200 (CEST) Received: from localhost (unknown [88.191.26.124]) by mail.bootlin.com (Postfix) with ESMTPSA id 6E8A520908; Wed, 18 Jul 2018 00:28:09 +0200 (CEST) From: Alexandre Belloni To: Stephen Boyd , Rob Herring Cc: Nicolas Ferre , Michael Turquette , Thomas Petazzoni , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH 11/16] clk: at91: add sama5d2 PMC driver Date: Wed, 18 Jul 2018 00:27:52 +0200 Message-Id: <20180717222757.10253-12-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180717222757.10253-1-alexandre.belloni@bootlin.com> References: <20180717222757.10253-1-alexandre.belloni@bootlin.com> Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add a driver for the PMC clocks of the sama5d2 Signed-off-by: Alexandre Belloni --- drivers/clk/at91/Makefile | 1 + drivers/clk/at91/sama5d2.c | 333 +++++++++++++++++++++++++++++++++++++ 2 files changed, 334 insertions(+) create mode 100644 drivers/clk/at91/sama5d2.c diff --git a/drivers/clk/at91/Makefile b/drivers/clk/at91/Makefile index 7cdb762f3e2e..1e7c70dda723 100644 --- a/drivers/clk/at91/Makefile +++ b/drivers/clk/at91/Makefile @@ -15,3 +15,4 @@ obj-$(CONFIG_HAVE_AT91_H32MX) += clk-h32mx.o obj-$(CONFIG_HAVE_AT91_GENERATED_CLK) += clk-generated.o obj-$(CONFIG_HAVE_AT91_I2S_MUX_CLK) += clk-i2s-mux.o obj-$(CONFIG_SOC_SAMA5D4) += sama5d4.o +obj-$(CONFIG_SOC_SAMA5D2) += sama5d2.o diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c new file mode 100644 index 000000000000..62c8c8995430 --- /dev/null +++ b/drivers/clk/at91/sama5d2.c @@ -0,0 +1,333 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include + +#include + +#include "pmc.h" + +static const struct clk_master_characteristics mck_characteristics = { + .output = { .min = 124000000, .max = 166000000 }, + .divisors = { 1, 2, 4, 3 }, +}; + +static u8 plla_out[] = { 0 }; + +static u16 plla_icpll[] = { 0 }; + +static struct clk_range plla_outputs[] = { + { .min = 600000000, .max = 1200000000 }, +}; + +static const struct clk_pll_characteristics plla_characteristics = { + .input = { .min = 12000000, .max = 12000000 }, + .num_output = ARRAY_SIZE(plla_outputs), + .output = plla_outputs, + .icpll = plla_icpll, + .out = plla_out, +}; + +static const struct { + char *n; + char *p; + u8 id; +} sama5d2_systemck[] = { + { .n = "ddrck", .p = "masterck", .id = 2 }, + { .n = "lcdck", .p = "masterck", .id = 3 }, + { .n = "uhpck", .p = "usbck", .id = 6 }, + { .n = "udpck", .p = "usbck", .id = 7 }, + { .n = "pck0", .p = "prog0", .id = 8 }, + { .n = "pck1", .p = "prog1", .id = 9 }, + { .n = "pck2", .p = "prog2", .id = 10 }, + { .n = "iscck", .p = "masterck", .id = 18 }, +}; + +static const struct { + char *n; + u8 id; + struct clk_range r; +} sama5d2_periph32ck[] = { + { .n = "macb0_clk", .id = 5, .r = { .min = 0, .max = 83000000 }, }, + { .n = "tdes_clk", .id = 11, .r = { .min = 0, .max = 83000000 }, }, + { .n = "matrix1_clk", .id = 14, }, + { .n = "hsmc_clk", .id = 17, }, + { .n = "pioA_clk", .id = 18, .r = { .min = 0, .max = 83000000 }, }, + { .n = "flx0_clk", .id = 19, .r = { .min = 0, .max = 83000000 }, }, + { .n = "flx1_clk", .id = 20, .r = { .min = 0, .max = 83000000 }, }, + { .n = "flx2_clk", .id = 21, .r = { .min = 0, .max = 83000000 }, }, + { .n = "flx3_clk", .id = 22, .r = { .min = 0, .max = 83000000 }, }, + { .n = "flx4_clk", .id = 23, .r = { .min = 0, .max = 83000000 }, }, + { .n = "uart0_clk", .id = 24, .r = { .min = 0, .max = 83000000 }, }, + { .n = "uart1_clk", .id = 25, .r = { .min = 0, .max = 83000000 }, }, + { .n = "uart2_clk", .id = 26, .r = { .min = 0, .max = 83000000 }, }, + { .n = "uart3_clk", .id = 27, .r = { .min = 0, .max = 83000000 }, }, + { .n = "uart4_clk", .id = 28, .r = { .min = 0, .max = 83000000 }, }, + { .n = "twi0_clk", .id = 29, .r = { .min = 0, .max = 83000000 }, }, + { .n = "twi1_clk", .id = 30, .r = { .min = 0, .max = 83000000 }, }, + { .n = "spi0_clk", .id = 33, .r = { .min = 0, .max = 83000000 }, }, + { .n = "spi1_clk", .id = 34, .r = { .min = 0, .max = 83000000 }, }, + { .n = "tcb0_clk", .id = 35, .r = { .min = 0, .max = 83000000 }, }, + { .n = "tcb1_clk", .id = 36, .r = { .min = 0, .max = 83000000 }, }, + { .n = "pwm_clk", .id = 38, .r = { .min = 0, .max = 83000000 }, }, + { .n = "adc_clk", .id = 40, .r = { .min = 0, .max = 83000000 }, }, + { .n = "uhphs_clk", .id = 41, .r = { .min = 0, .max = 83000000 }, }, + { .n = "udphs_clk", .id = 42, .r = { .min = 0, .max = 83000000 }, }, + { .n = "ssc0_clk", .id = 43, .r = { .min = 0, .max = 83000000 }, }, + { .n = "ssc1_clk", .id = 44, .r = { .min = 0, .max = 83000000 }, }, + { .n = "trng_clk", .id = 47, .r = { .min = 0, .max = 83000000 }, }, + { .n = "pdmic_clk", .id = 48, .r = { .min = 0, .max = 83000000 }, }, + { .n = "securam_clk", .id = 51, }, + { .n = "i2s0_clk", .id = 54, .r = { .min = 0, .max = 83000000 }, }, + { .n = "i2s1_clk", .id = 55, .r = { .min = 0, .max = 83000000 }, }, + { .n = "can0_clk", .id = 56, .r = { .min = 0, .max = 83000000 }, }, + { .n = "can1_clk", .id = 57, .r = { .min = 0, .max = 83000000 }, }, + { .n = "classd_clk", .id = 59, .r = { .min = 0, .max = 83000000 }, }, +}; + +static const struct { + char *n; + u8 id; +} sama5d2_periphck[] = { + { .n = "dma0_clk", .id = 6, }, + { .n = "dma1_clk", .id = 7, }, + { .n = "aes_clk", .id = 9, }, + { .n = "aesb_clk", .id = 10, }, + { .n = "sha_clk", .id = 12, }, + { .n = "mpddr_clk", .id = 13, }, + { .n = "matrix0_clk", .id = 15, }, + { .n = "sdmmc0_hclk", .id = 31, }, + { .n = "sdmmc1_hclk", .id = 32, }, + { .n = "lcdc_clk", .id = 45, }, + { .n = "isc_clk", .id = 46, }, + { .n = "qspi0_clk", .id = 52, }, + { .n = "qspi1_clk", .id = 53, }, +}; + +static const struct { + char *n; + u8 id; + struct clk_range r; + bool pll; +} sama5d2_gck[] = { + { .n = "sdmmc0_gclk", .id = 31, }, + { .n = "sdmmc1_gclk", .id = 32, }, + { .n = "tcb0_gclk", .id = 35, .r = { .min = 0, .max = 83000000 }, }, + { .n = "tcb1_gclk", .id = 36, .r = { .min = 0, .max = 83000000 }, }, + { .n = "pwm_gclk", .id = 38, .r = { .min = 0, .max = 83000000 }, }, + { .n = "isc_gclk", .id = 46, }, + { .n = "pdmic_gclk", .id = 48, }, + { .n = "i2s0_gclk", .id = 54, .pll = true }, + { .n = "i2s1_gclk", .id = 55, .pll = true }, + { .n = "can0_gclk", .id = 56, .r = { .min = 0, .max = 80000000 }, }, + { .n = "can1_gclk", .id = 57, .r = { .min = 0, .max = 80000000 }, }, + { .n = "classd_gclk", .id = 59, .r = { .min = 0, .max = 100000000 }, + .pll = true }, +}; + +static void __init sama5d2_pmc_setup(struct device_node *np) +{ + struct clk_range range = CLK_RANGE(0, 0); + const char *slck_name, *mainxtal_name; + struct pmc_data *sama5d2_pmc; + const char *parent_names[6]; + struct regmap *regmap, *regmap_sfr; + struct clk_hw *hw; + unsigned int i; + bool bypass; + + i = of_property_match_string(np, "clock-names", "slow_clk"); + if (i < 0) + return; + + slck_name = of_clk_get_parent_name(np, i); + + i = of_property_match_string(np, "clock-names", "main_xtal"); + if (i < 0) + return; + mainxtal_name = of_clk_get_parent_name(np, i); + + regmap = syscon_node_to_regmap(np); + if (IS_ERR(regmap)) + return; + + sama5d2_pmc = pmc_data_allocate(6, 19, 60, 60); + if (!sama5d2_pmc) + return; + + hw = at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 12000000, + 100000000); + if (IS_ERR(hw)) + goto err_free; + + bypass = of_property_read_bool(np, "atmel,osc-bypass"); + + hw = at91_clk_register_main_osc(regmap, "main_osc", mainxtal_name, + bypass); + if (IS_ERR(hw)) + goto err_free; + + parent_names[0] = "main_rc_osc"; + parent_names[1] = "main_osc"; + hw = at91_clk_register_sam9x5_main(regmap, "mainck", parent_names, 2); + if (IS_ERR(hw)) + goto err_free; + + sama5d2_pmc->chws[PMC_MAIN] = hw; + + hw = at91_clk_register_pll(regmap, "pllack", "mainck", 0, + &sama5d3_pll_layout, &plla_characteristics); + if (IS_ERR(hw)) + goto err_free; + + hw = at91_clk_register_plldiv(regmap, "plladivck", "pllack"); + if (IS_ERR(hw)) + goto err_free; + + hw = at91_clk_register_audio_pll_frac(regmap, "audiopll_fracck", + "mainck"); + if (IS_ERR(hw)) + goto err_free; + + hw = at91_clk_register_audio_pll_pad(regmap, "audiopll_padck", + "audiopll_fracck"); + if (IS_ERR(hw)) + goto err_free; + + hw = at91_clk_register_audio_pll_pmc(regmap, "audiopll_pmcck", + "audiopll_fracck"); + if (IS_ERR(hw)) + goto err_free; + + regmap_sfr = syscon_regmap_lookup_by_compatible("atmel,sama5d2-sfr"); + if (IS_ERR(regmap_sfr)) + regmap_sfr = NULL; + + hw = at91_clk_register_utmi(regmap, regmap_sfr, "utmick", "mainck"); + if (IS_ERR(hw)) + goto err_free; + + sama5d2_pmc->chws[PMC_UTMI] = hw; + + parent_names[0] = slck_name; + parent_names[1] = "mainck"; + parent_names[2] = "plladivck"; + parent_names[3] = "utmick"; + hw = at91_clk_register_master(regmap, "masterck", 4, parent_names, + &at91sam9x5_master_layout, + &mck_characteristics); + if (IS_ERR(hw)) + goto err_free; + + sama5d2_pmc->chws[PMC_MCK] = hw; + + hw = at91_clk_register_h32mx(regmap, "h32mxck", "masterck"); + if (IS_ERR(hw)) + goto err_free; + + sama5d2_pmc->chws[PMC_MCK2] = hw; + + parent_names[0] = "plladivck"; + parent_names[1] = "utmick"; + hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, 2); + if (IS_ERR(hw)) + goto err_free; + + parent_names[0] = slck_name; + parent_names[1] = "mainck"; + parent_names[2] = "plladivck"; + parent_names[3] = "utmick"; + parent_names[4] = "mck"; + for (i = 0; i < 3; i++) { + char name[6]; + + snprintf(name, sizeof(name), "prog%d", i); + + hw = at91_clk_register_programmable(regmap, name, + parent_names, 5, i, + &at91sam9x5_programmable_layout); + if (IS_ERR(hw)) + goto err_free; + } + + for (i = 0; i < ARRAY_SIZE(sama5d2_systemck); i++) { + hw = at91_clk_register_system(regmap, sama5d2_systemck[i].n, + sama5d2_systemck[i].p, + sama5d2_systemck[i].id); + if (IS_ERR(hw)) + goto err_free; + + sama5d2_pmc->shws[sama5d2_systemck[i].id] = hw; + } + + for (i = 0; i < ARRAY_SIZE(sama5d2_periphck); i++) { + hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock, + sama5d2_periphck[i].n, + "masterck", + sama5d2_periphck[i].id, + &range); + if (IS_ERR(hw)) + goto err_free; + + sama5d2_pmc->phws[sama5d2_periphck[i].id] = hw; + } + + for (i = 0; i < ARRAY_SIZE(sama5d2_periph32ck); i++) { + hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock, + sama5d2_periph32ck[i].n, + "h32mxck", + sama5d2_periph32ck[i].id, + &sama5d2_periph32ck[i].r); + if (IS_ERR(hw)) + goto err_free; + + sama5d2_pmc->phws[sama5d2_periph32ck[i].id] = hw; + } + + parent_names[0] = slck_name; + parent_names[1] = "mainck"; + parent_names[2] = "plladivck"; + parent_names[3] = "utmick"; + parent_names[4] = "mck"; + parent_names[5] = "audiopll_pmcck"; + for (i = 0; i < ARRAY_SIZE(sama5d2_gck); i++) { + hw = at91_clk_register_generated(regmap, &pmc_pcr_lock, + sama5d2_gck[i].n, + parent_names, 6, + sama5d2_gck[i].id, + sama5d2_gck[i].pll, + &sama5d2_gck[i].r); + if (IS_ERR(hw)) + goto err_free; + + sama5d2_pmc->ghws[sama5d2_gck[i].id] = hw; + } + + if (regmap_sfr) { + parent_names[0] = "i2s0_clk"; + parent_names[1] = "i2s0_gclk"; + hw = at91_clk_i2s_mux_register(regmap_sfr, "i2s0_muxclk", + parent_names, 2, 0); + if (IS_ERR(hw)) + goto err_free; + + sama5d2_pmc->chws[PMC_I2S0_MUX] = hw; + + parent_names[0] = "i2s1_clk"; + parent_names[1] = "i2s1_gclk"; + hw = at91_clk_i2s_mux_register(regmap_sfr, "i2s1_muxclk", + parent_names, 2, 1); + if (IS_ERR(hw)) + goto err_free; + + sama5d2_pmc->chws[PMC_I2S1_MUX] = hw; + } + + of_clk_add_hw_provider(np, of_clk_hw_pmc_get, sama5d2_pmc); + + return; + +err_free: + pmc_data_free(sama5d2_pmc); +} +CLK_OF_DECLARE(sama5d2_pmc, "atmel,sama5d2-pmc", sama5d2_pmc_setup);