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Mon, 22 May 2017 04:59:06 -0700 (PDT) Received: from anup-HP-Compaq-8100-Elite-CMT-PC.dhcp.avagotech.net ([192.19.237.250]) by smtp.gmail.com with ESMTPSA id m24sm28673653pfi.129.2017.05.22.04.59.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 22 May 2017 04:59:05 -0700 (PDT) From: Anup Patel To: Rob Herring , Mark Rutland , Michael Turquette , Stephen Boyd Subject: [PATCH v4 03/11] clk: bcm: Add clocks for Stingray SOC Date: Mon, 22 May 2017 17:28:19 +0530 Message-Id: <1495454307-23464-4-git-send-email-anup.patel@broadcom.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1495454307-23464-1-git-send-email-anup.patel@broadcom.com> References: <1495454307-23464-1-git-send-email-anup.patel@broadcom.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170522_045927_640793_144B4157 X-CRM114-Status: GOOD ( 18.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Florian Fainelli , Sandeep Tripathy , Scott Branden , Jon Mason , Catalin Marinas , Will Deacon , linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, Pramod Kumar , Oza Pawandeep , Ray Jui , Srinath Mannam , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sandeep Tripathy This patch adds support for Stingray clocks in iproc ccf. The Stingray SOC has various plls based on iproc pll architecture. Signed-off-by: Sandeep Tripathy Reviewed-by: Ray Jui Reviewed-by: Scott Branden --- drivers/clk/bcm/Kconfig | 8 ++ drivers/clk/bcm/Makefile | 1 + drivers/clk/bcm/clk-sr.c | 324 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 333 insertions(+) create mode 100644 drivers/clk/bcm/clk-sr.c diff --git a/drivers/clk/bcm/Kconfig b/drivers/clk/bcm/Kconfig index b5ae531..1d9187d 100644 --- a/drivers/clk/bcm/Kconfig +++ b/drivers/clk/bcm/Kconfig @@ -46,3 +46,11 @@ config CLK_BCM_NS2 default ARCH_BCM_IPROC help Enable common clock framework support for the Broadcom Northstar 2 SoC + +config CLK_BCM_SR + bool "Broadcom Stingray clock support" + depends on ARCH_BCM_IPROC || COMPILE_TEST + select COMMON_CLK_IPROC + default ARCH_BCM_IPROC + help + Enable common clock framework support for the Broadcom Stingray SoC diff --git a/drivers/clk/bcm/Makefile b/drivers/clk/bcm/Makefile index d9dc848..a0c14fa 100644 --- a/drivers/clk/bcm/Makefile +++ b/drivers/clk/bcm/Makefile @@ -10,3 +10,4 @@ obj-$(CONFIG_ARCH_BCM_53573) += clk-bcm53573-ilp.o obj-$(CONFIG_CLK_BCM_CYGNUS) += clk-cygnus.o obj-$(CONFIG_CLK_BCM_NSP) += clk-nsp.o obj-$(CONFIG_CLK_BCM_NS2) += clk-ns2.o +obj-$(CONFIG_CLK_BCM_SR) += clk-sr.o diff --git a/drivers/clk/bcm/clk-sr.c b/drivers/clk/bcm/clk-sr.c new file mode 100644 index 0000000..87b9543 --- /dev/null +++ b/drivers/clk/bcm/clk-sr.c @@ -0,0 +1,324 @@ +/* + * Copyright 2017 Broadcom + * + * 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 (the "GPL"). + * + * 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 version 2 (GPLv2) for more details. + * + * You should have received a copy of the GNU General Public License + * version 2 (GPLv2) along with this source code. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include "clk-iproc.h" + +#define REG_VAL(o, s, w) { .offset = o, .shift = s, .width = w, } + +#define AON_VAL(o, pw, ps, is) { .offset = o, .pwr_width = pw, \ + .pwr_shift = ps, .iso_shift = is } + +#define SW_CTRL_VAL(o, s) { .offset = o, .shift = s, } + +#define RESET_VAL(o, rs, prs) { .offset = o, .reset_shift = rs, \ + .p_reset_shift = prs } + +#define DF_VAL(o, kis, kiw, kps, kpw, kas, kaw) { .offset = o, \ + .ki_shift = kis, .ki_width = kiw, .kp_shift = kps, .kp_width = kpw, \ + .ka_shift = kas, .ka_width = kaw } + +#define VCO_CTRL_VAL(uo, lo) { .u_offset = uo, .l_offset = lo } + +#define ENABLE_VAL(o, es, hs, bs) { .offset = o, .enable_shift = es, \ + .hold_shift = hs, .bypass_shift = bs } + + +static const struct iproc_pll_ctrl genpll0 = { + .flags = IPROC_CLK_AON | IPROC_CLK_PLL_HAS_NDIV_FRAC | + IPROC_CLK_PLL_NEEDS_SW_CFG, + .aon = AON_VAL(0x0, 5, 1, 0), + .reset = RESET_VAL(0x0, 12, 11), + .dig_filter = DF_VAL(0x0, 4, 3, 0, 4, 7, 3), + .sw_ctrl = SW_CTRL_VAL(0x10, 31), + .ndiv_int = REG_VAL(0x10, 20, 10), + .ndiv_frac = REG_VAL(0x10, 0, 20), + .pdiv = REG_VAL(0x14, 0, 4), + .status = REG_VAL(0x30, 12, 1), +}; + +static const struct iproc_clk_ctrl genpll0_clk[] = { + [BCM_SR_GENPLL0_SATA_CLK] = { + .channel = BCM_SR_GENPLL0_SATA_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 6, 0, 12), + .mdiv = REG_VAL(0x18, 0, 9), + }, + [BCM_SR_GENPLL0_SCR_CLK] = { + .channel = BCM_SR_GENPLL0_SCR_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 7, 1, 13), + .mdiv = REG_VAL(0x18, 10, 9), + }, + [BCM_SR_GENPLL0_250M_CLK] = { + .channel = BCM_SR_GENPLL0_250M_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 8, 2, 14), + .mdiv = REG_VAL(0x18, 20, 9), + }, + [BCM_SR_GENPLL0_PCIE_AXI_CLK] = { + .channel = BCM_SR_GENPLL0_PCIE_AXI_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 9, 3, 15), + .mdiv = REG_VAL(0x1c, 0, 9), + }, + [BCM_SR_GENPLL0_PAXC_AXI_X2_CLK] = { + .channel = BCM_SR_GENPLL0_PAXC_AXI_X2_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 10, 4, 16), + .mdiv = REG_VAL(0x1c, 10, 9), + }, + [BCM_SR_GENPLL0_PAXC_AXI_CLK] = { + .channel = BCM_SR_GENPLL0_PAXC_AXI_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 11, 5, 17), + .mdiv = REG_VAL(0x1c, 20, 9), + }, +}; + +static void __init sr_genpll0_clk_init(struct device_node *node) +{ + iproc_pll_clk_setup(node, &genpll0, NULL, 0, genpll0_clk, + ARRAY_SIZE(genpll0_clk)); +} + +static const struct iproc_pll_ctrl genpll3 = { + .flags = IPROC_CLK_AON | IPROC_CLK_PLL_HAS_NDIV_FRAC | + IPROC_CLK_PLL_NEEDS_SW_CFG, + .aon = AON_VAL(0x0, 1, 19, 18), + .reset = RESET_VAL(0x0, 12, 11), + .dig_filter = DF_VAL(0x0, 4, 3, 0, 4, 7, 3), + .sw_ctrl = SW_CTRL_VAL(0x10, 31), + .ndiv_int = REG_VAL(0x10, 20, 10), + .ndiv_frac = REG_VAL(0x10, 0, 20), + .pdiv = REG_VAL(0x14, 0, 4), + .status = REG_VAL(0x30, 12, 1), +}; + +static const struct iproc_clk_ctrl genpll3_clk[] = { + [BCM_SR_GENPLL3_HSLS_CLK] = { + .channel = BCM_SR_GENPLL3_HSLS_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 6, 0, 12), + .mdiv = REG_VAL(0x18, 0, 9), + }, + [BCM_SR_GENPLL3_SDIO_CLK] = { + .channel = BCM_SR_GENPLL3_SDIO_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 7, 1, 13), + .mdiv = REG_VAL(0x18, 10, 9), + }, +}; + +static void __init sr_genpll3_clk_init(struct device_node *node) +{ + iproc_pll_clk_setup(node, &genpll3, NULL, 0, genpll3_clk, + ARRAY_SIZE(genpll3_clk)); +} +CLK_OF_DECLARE(sr_genpll3_clk, "brcm,sr-genpll3", + sr_genpll3_clk_init); + +static const struct iproc_pll_ctrl genpll4 = { + .flags = IPROC_CLK_AON | IPROC_CLK_PLL_HAS_NDIV_FRAC | + IPROC_CLK_PLL_NEEDS_SW_CFG, + .aon = AON_VAL(0x0, 1, 25, 24), + .reset = RESET_VAL(0x0, 12, 11), + .dig_filter = DF_VAL(0x0, 4, 3, 0, 4, 7, 3), + .sw_ctrl = SW_CTRL_VAL(0x10, 31), + .ndiv_int = REG_VAL(0x10, 20, 10), + .ndiv_frac = REG_VAL(0x10, 0, 20), + .pdiv = REG_VAL(0x14, 0, 4), + .status = REG_VAL(0x30, 12, 1), +}; + +static const struct iproc_clk_ctrl genpll4_clk[] = { + [BCM_SR_GENPLL4_CCN_CLK] = { + .channel = BCM_SR_GENPLL4_CCN_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 6, 0, 12), + .mdiv = REG_VAL(0x18, 0, 9), + }, +}; + +static void __init sr_genpll4_clk_init(struct device_node *node) +{ + iproc_pll_clk_setup(node, &genpll4, NULL, 0, genpll4_clk, + ARRAY_SIZE(genpll4_clk)); +} + +static const struct iproc_pll_ctrl genpll5 = { + .flags = IPROC_CLK_AON | IPROC_CLK_PLL_HAS_NDIV_FRAC | + IPROC_CLK_PLL_NEEDS_SW_CFG, + .aon = AON_VAL(0x0, 1, 1, 0), + .reset = RESET_VAL(0x0, 12, 11), + .dig_filter = DF_VAL(0x0, 4, 3, 0, 4, 7, 3), + .sw_ctrl = SW_CTRL_VAL(0x10, 31), + .ndiv_int = REG_VAL(0x10, 20, 10), + .ndiv_frac = REG_VAL(0x10, 0, 20), + .pdiv = REG_VAL(0x14, 0, 4), + .status = REG_VAL(0x30, 12, 1), +}; + +static const struct iproc_clk_ctrl genpll5_clk[] = { + [BCM_SR_GENPLL5_FS_CLK] = { + .channel = BCM_SR_GENPLL5_FS_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 6, 0, 12), + .mdiv = REG_VAL(0x18, 0, 9), + }, + [BCM_SR_GENPLL5_SPU_CLK] = { + .channel = BCM_SR_GENPLL5_SPU_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x4, 6, 0, 12), + .mdiv = REG_VAL(0x18, 10, 9), + }, +}; + +static void __init sr_genpll5_clk_init(struct device_node *node) +{ + iproc_pll_clk_setup(node, &genpll5, NULL, 0, genpll5_clk, + ARRAY_SIZE(genpll5_clk)); +} + +static const struct iproc_pll_ctrl lcpll0 = { + .flags = IPROC_CLK_AON | IPROC_CLK_PLL_NEEDS_SW_CFG, + .aon = AON_VAL(0x0, 2, 19, 18), + .reset = RESET_VAL(0x0, 31, 30), + .sw_ctrl = SW_CTRL_VAL(0x4, 31), + .ndiv_int = REG_VAL(0x4, 16, 10), + .pdiv = REG_VAL(0x4, 26, 4), + .status = REG_VAL(0x38, 12, 1), +}; + +static const struct iproc_clk_ctrl lcpll0_clk[] = { + [BCM_SR_LCPLL0_SATA_REF_CLK] = { + .channel = BCM_SR_LCPLL0_SATA_REF_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x0, 7, 1, 13), + .mdiv = REG_VAL(0x14, 0, 9), + }, + [BCM_SR_LCPLL0_USB_REF_CLK] = { + .channel = BCM_SR_LCPLL0_USB_REF_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x0, 8, 2, 14), + .mdiv = REG_VAL(0x14, 10, 9), + }, + [BCM_SR_LCPLL0_SATA_REFPN_CLK] = { + .channel = BCM_SR_LCPLL0_SATA_REFPN_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x0, 9, 3, 15), + .mdiv = REG_VAL(0x14, 20, 9), + }, +}; + +static void __init sr_lcpll0_clk_init(struct device_node *node) +{ + iproc_pll_clk_setup(node, &lcpll0, NULL, 0, lcpll0_clk, + ARRAY_SIZE(lcpll0_clk)); +} + +static const struct iproc_pll_ctrl lcpll1 = { + .flags = IPROC_CLK_AON | IPROC_CLK_PLL_NEEDS_SW_CFG, + .aon = AON_VAL(0x0, 2, 22, 21), + .reset = RESET_VAL(0x0, 31, 30), + .sw_ctrl = SW_CTRL_VAL(0x4, 31), + .ndiv_int = REG_VAL(0x4, 16, 10), + .pdiv = REG_VAL(0x4, 26, 4), + .status = REG_VAL(0x38, 12, 1), +}; + +static const struct iproc_clk_ctrl lcpll1_clk[] = { + [BCM_SR_LCPLL1_WAN_CLK] = { + .channel = BCM_SR_LCPLL1_WAN_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x0, 7, 1, 13), + .mdiv = REG_VAL(0x14, 0, 9), + }, +}; + +static void __init sr_lcpll1_clk_init(struct device_node *node) +{ + iproc_pll_clk_setup(node, &lcpll1, NULL, 0, lcpll1_clk, + ARRAY_SIZE(lcpll1_clk)); +} + +static const struct iproc_pll_ctrl lcpll_pcie = { + .flags = IPROC_CLK_AON | IPROC_CLK_PLL_NEEDS_SW_CFG, + .aon = AON_VAL(0x0, 2, 25, 24), + .reset = RESET_VAL(0x0, 31, 30), + .sw_ctrl = SW_CTRL_VAL(0x4, 31), + .ndiv_int = REG_VAL(0x4, 16, 10), + .pdiv = REG_VAL(0x4, 26, 4), + .status = REG_VAL(0x38, 12, 1), +}; + +static const struct iproc_clk_ctrl lcpll_pcie_clk[] = { + [BCM_SR_LCPLL_PCIE_PHY_REF_CLK] = { + .channel = BCM_SR_LCPLL_PCIE_PHY_REF_CLK, + .flags = IPROC_CLK_AON, + .enable = ENABLE_VAL(0x0, 7, 1, 13), + .mdiv = REG_VAL(0x14, 0, 9), + }, +}; + +static void __init sr_lcpll_pcie_clk_init(struct device_node *node) +{ + iproc_pll_clk_setup(node, &lcpll_pcie, NULL, 0, lcpll_pcie_clk, + ARRAY_SIZE(lcpll_pcie_clk)); +} + +static const struct of_device_id sr_clk_dt_ids[] = { +{ .compatible = "brcm,sr-genpll0", .data = sr_genpll0_clk_init, }, +{ .compatible = "brcm,sr-genpll4", .data = sr_genpll4_clk_init, }, +{ .compatible = "brcm,sr-genpll5", .data = sr_genpll5_clk_init, }, +{ .compatible = "brcm,sr-lcpll0", .data = sr_lcpll0_clk_init, }, +{ .compatible = "brcm,sr-lcpll1", .data = sr_lcpll1_clk_init, }, +{ .compatible = "brcm,sr-lcpll-pcie", .data = sr_lcpll_pcie_clk_init, }, +{ /* sentinel */ } +}; + +static int sr_clk_probe(struct platform_device *pdev) +{ + const struct of_device_id *device; + void (*init_func)(struct device_node *); + + device = of_match_device(sr_clk_dt_ids, &pdev->dev); + if (!device) + return -ENODEV; + init_func = device->data; + + init_func(pdev->dev.of_node); + + return 0; +} + +static struct platform_driver sr_clk_driver = { + .driver = { + .name = "sr-clk", + .of_match_table = sr_clk_dt_ids, + }, + .probe = sr_clk_probe, +}; +builtin_platform_driver(sr_clk_driver);