From: Álvaro Fernández Rojas Date: Wed, 22 Mar 2023 17:24:28 +0000 (+0100) Subject: kernel: add pending patches for bcm63268-timer-clocks X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a97965b7b11f33ff8ebd49560c4c680e49deed67;p=openwrt%2Fstaging%2Fnbd.git kernel: add pending patches for bcm63268-timer-clocks bcm63268-timer-clocks have been sent upstream with a positive review, so let's add them to pending v5.15. Also add devm_clk_hw_register_gate() patch from v5.17 to backports since it's needed for upstream bcm63268-timer-clocks patches. Signed-off-by: Álvaro Fernández Rojas --- diff --git a/target/linux/bmips/patches-5.15/110-mips-bmips-add-BCM63268-timer-clock-definitions.patch b/target/linux/bmips/patches-5.15/110-mips-bmips-add-BCM63268-timer-clock-definitions.patch deleted file mode 100644 index 0df7db9717..0000000000 --- a/target/linux/bmips/patches-5.15/110-mips-bmips-add-BCM63268-timer-clock-definitions.patch +++ /dev/null @@ -1,35 +0,0 @@ -From 5a079515cb3066aeb658634301a98871b47c2af4 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= -Date: Thu, 25 Feb 2021 19:44:22 +0100 -Subject: [PATCH 1/4] mips: bmips: add BCM63268 timer clock definitions -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Add missing timer clock definitions for BCM63268. - -Signed-off-by: Álvaro Fernández Rojas ---- - include/dt-bindings/clock/bcm63268-clock.h | 13 +++++++++++++ - 1 file changed, 13 insertions(+) - ---- a/include/dt-bindings/clock/bcm63268-clock.h -+++ b/include/dt-bindings/clock/bcm63268-clock.h -@@ -27,4 +27,17 @@ - #define BCM63268_CLK_TBUS 27 - #define BCM63268_CLK_ROBOSW250 31 - -+#define BCM63268_TCLK_EPHY1 0 -+#define BCM63268_TCLK_EPHY2 1 -+#define BCM63268_TCLK_EPHY3 2 -+#define BCM63268_TCLK_GPHY1 3 -+#define BCM63268_TCLK_DSL 4 -+#define BCM63268_TCLK_WAKEON_EPHY 6 -+#define BCM63268_TCLK_WAKEON_DSL 7 -+#define BCM63268_TCLK_FAP1 11 -+#define BCM63268_TCLK_FAP2 15 -+#define BCM63268_TCLK_UTO_50 16 -+#define BCM63268_TCLK_UTO_EXTIN 17 -+#define BCM63268_TCLK_USB_REF 18 -+ - #endif /* __DT_BINDINGS_CLOCK_BCM63268_H */ diff --git a/target/linux/bmips/patches-5.15/111-mips-bmips-add-BCM63268-timer-reset-definitions.patch b/target/linux/bmips/patches-5.15/111-mips-bmips-add-BCM63268-timer-reset-definitions.patch deleted file mode 100644 index 7b694d3289..0000000000 --- a/target/linux/bmips/patches-5.15/111-mips-bmips-add-BCM63268-timer-reset-definitions.patch +++ /dev/null @@ -1,26 +0,0 @@ -From 3327df17635dd9d24a855ac6b7247fac381514cf Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= -Date: Thu, 25 Feb 2021 19:45:04 +0100 -Subject: [PATCH 2/4] mips: bmips: add BCM63268 timer reset definitions -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Add missing timer reset definitions for BCM63268. - -Signed-off-by: Álvaro Fernández Rojas ---- - include/dt-bindings/reset/bcm63268-reset.h | 4 ++++ - 1 file changed, 4 insertions(+) - ---- a/include/dt-bindings/reset/bcm63268-reset.h -+++ b/include/dt-bindings/reset/bcm63268-reset.h -@@ -23,4 +23,8 @@ - #define BCM63268_RST_PCIE_HARD 17 - #define BCM63268_RST_GPHY 18 - -+#define BCM63268_TRST_SW 29 -+#define BCM63268_TRST_HW 30 -+#define BCM63268_TRST_POR 31 -+ - #endif /* __DT_BINDINGS_RESET_BCM63268_H */ diff --git a/target/linux/bmips/patches-5.15/112-dt-bindings-clock-Add-BCM63268-timer-binding.patch b/target/linux/bmips/patches-5.15/112-dt-bindings-clock-Add-BCM63268-timer-binding.patch deleted file mode 100644 index 945bdfc3d0..0000000000 --- a/target/linux/bmips/patches-5.15/112-dt-bindings-clock-Add-BCM63268-timer-binding.patch +++ /dev/null @@ -1,59 +0,0 @@ -From c17702bad18a085ae913752b45bcc20c2cea879e Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= -Date: Thu, 25 Feb 2021 19:53:08 +0100 -Subject: [PATCH 3/4] dt-bindings: clock: Add BCM63268 timer binding -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Document the Broadcom BCM63268 Clock and Reset controller. - -Signed-off-by: Álvaro Fernández Rojas ---- - .../clock/brcm,bcm63268-timer-clocks.yaml | 40 +++++++++++++++++++ - 1 file changed, 40 insertions(+) - create mode 100644 Documentation/devicetree/bindings/clock/brcm,bcm63268-timer-clocks.yaml - ---- /dev/null -+++ b/Documentation/devicetree/bindings/clock/brcm,bcm63268-timer-clocks.yaml -@@ -0,0 +1,40 @@ -+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) -+%YAML 1.2 -+--- -+$id: http://devicetree.org/schemas/clock/brcm,bcm63268-timer-clocks.yaml# -+$schema: http://devicetree.org/meta-schemas/core.yaml# -+ -+title: Broadcom BCM63268 Timer Clock and Reset Device Tree Bindings -+ -+maintainers: -+ - Álvaro Fernández Rojas -+ -+properties: -+ compatible: -+ const: brcm,bcm63268-timer-clocks -+ -+ reg: -+ maxItems: 1 -+ -+ "#clock-cells": -+ const: 1 -+ -+ "#reset-cells": -+ const: 1 -+ -+required: -+ - compatible -+ - reg -+ - "#clock-cells" -+ - "#reset-cells" -+ -+additionalProperties: false -+ -+examples: -+ - | -+ timer_clk: clock-controller@100000ac { -+ compatible = "brcm,bcm63268-timer-clocks"; -+ reg = <0x100000ac 0x4>; -+ #clock-cells = <1>; -+ #reset-cells = <1>; -+ }; diff --git a/target/linux/bmips/patches-5.15/113-clk-bcm-Add-BCM63268-timer-clock-and-reset-driver.patch b/target/linux/bmips/patches-5.15/113-clk-bcm-Add-BCM63268-timer-clock-and-reset-driver.patch deleted file mode 100644 index 484647a6e1..0000000000 --- a/target/linux/bmips/patches-5.15/113-clk-bcm-Add-BCM63268-timer-clock-and-reset-driver.patch +++ /dev/null @@ -1,281 +0,0 @@ -From 3c8dd9d0937a19f3f20f28ba0b0b64f448d50dd4 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= -Date: Thu, 25 Feb 2021 19:54:04 +0100 -Subject: [PATCH 4/4] clk: bcm: Add BCM63268 timer clock and reset driver -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Add driver for BCM63268 timer clock and reset controller. - -Signed-off-by: Álvaro Fernández Rojas ---- - drivers/clk/bcm/Kconfig | 9 ++ - drivers/clk/bcm/Makefile | 1 + - drivers/clk/bcm/clk-bcm63268-timer.c | 232 +++++++++++++++++++++++++++ - 3 files changed, 242 insertions(+) - create mode 100644 drivers/clk/bcm/clk-bcm63268-timer.c - ---- a/drivers/clk/bcm/Kconfig -+++ b/drivers/clk/bcm/Kconfig -@@ -37,6 +37,15 @@ config CLK_BCM_63XX_GATE - Enable common clock framework support for Broadcom BCM63xx DSL SoCs - based on the MIPS architecture - -+config CLK_BCM63268_TIMER -+ bool "Broadcom BCM63268 timer clock and reset support" -+ depends on BMIPS_GENERIC || COMPILE_TEST -+ default BMIPS_GENERIC -+ select RESET_CONTROLLER -+ help -+ Enable timer clock and reset support for Broadcom BCM63268 DSL SoCs -+ based on the MIPS architecture. -+ - config CLK_BCM_KONA - bool "Broadcom Kona CCU clock support" - depends on ARCH_BCM_MOBILE || COMPILE_TEST ---- a/drivers/clk/bcm/Makefile -+++ b/drivers/clk/bcm/Makefile -@@ -1,6 +1,7 @@ - # SPDX-License-Identifier: GPL-2.0 - obj-$(CONFIG_CLK_BCM_63XX) += clk-bcm63xx.o - obj-$(CONFIG_CLK_BCM_63XX_GATE) += clk-bcm63xx-gate.o -+obj-$(CONFIG_CLK_BCM63268_TIMER) += clk-bcm63268-timer.o - obj-$(CONFIG_CLK_BCM_KONA) += clk-kona.o - obj-$(CONFIG_CLK_BCM_KONA) += clk-kona-setup.o - obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm281xx.o ---- /dev/null -+++ b/drivers/clk/bcm/clk-bcm63268-timer.c -@@ -0,0 +1,232 @@ -+// SPDX-License-Identifier: GPL-2.0 -+/* -+ * BCM63268 Timer Clock and Reset Controller Driver -+ * -+ * Copyright (C) 2021 Álvaro Fernández Rojas -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+ -+#define BCM63268_TIMER_RESET_SLEEP_MIN_US 10000 -+#define BCM63268_TIMER_RESET_SLEEP_MAX_US 20000 -+ -+struct bcm63268_tclkrst_hw { -+ void __iomem *regs; -+ spinlock_t lock; -+ -+ struct reset_controller_dev rcdev; -+ struct clk_hw_onecell_data data; -+}; -+ -+struct bcm63268_tclk_table_entry { -+ const char * const name; -+ u8 bit; -+ unsigned long flags; -+}; -+ -+static const struct bcm63268_tclk_table_entry bcm63268_timer_clocks[] = { -+ { -+ .name = "ephy1", -+ .bit = BCM63268_TCLK_EPHY1, -+ }, { -+ .name = "ephy2", -+ .bit = BCM63268_TCLK_EPHY2, -+ }, { -+ .name = "ephy3", -+ .bit = BCM63268_TCLK_EPHY3, -+ }, { -+ .name = "gphy1", -+ .bit = BCM63268_TCLK_GPHY1, -+ }, { -+ .name = "dsl", -+ .bit = BCM63268_TCLK_DSL, -+ }, { -+ .name = "wakeon_ephy", -+ .bit = BCM63268_TCLK_WAKEON_EPHY, -+ }, { -+ .name = "wakeon_dsl", -+ .bit = BCM63268_TCLK_WAKEON_DSL, -+ }, { -+ .name = "fap1_pll", -+ .bit = BCM63268_TCLK_FAP1, -+ }, { -+ .name = "fap2_pll", -+ .bit = BCM63268_TCLK_FAP2, -+ }, { -+ .name = "uto_50", -+ .bit = BCM63268_TCLK_UTO_50, -+ }, { -+ .name = "uto_extin", -+ .bit = BCM63268_TCLK_UTO_EXTIN, -+ }, { -+ .name = "usb_ref", -+ .bit = BCM63268_TCLK_USB_REF, -+ }, { -+ /* sentinel */ -+ } -+}; -+ -+static inline struct bcm63268_tclkrst_hw * -+to_bcm63268_timer_reset(struct reset_controller_dev *rcdev) -+{ -+ return container_of(rcdev, struct bcm63268_tclkrst_hw, rcdev); -+} -+ -+static int bcm63268_timer_reset_update(struct reset_controller_dev *rcdev, -+ unsigned long id, bool assert) -+{ -+ struct bcm63268_tclkrst_hw *reset = to_bcm63268_timer_reset(rcdev); -+ unsigned long flags; -+ uint32_t val; -+ -+ spin_lock_irqsave(&reset->lock, flags); -+ val = __raw_readl(reset->regs); -+ if (assert) -+ val &= ~BIT(id); -+ else -+ val |= BIT(id); -+ __raw_writel(val, reset->regs); -+ spin_unlock_irqrestore(&reset->lock, flags); -+ -+ return 0; -+} -+ -+static int bcm63268_timer_reset_assert(struct reset_controller_dev *rcdev, -+ unsigned long id) -+{ -+ return bcm63268_timer_reset_update(rcdev, id, true); -+} -+ -+static int bcm63268_timer_reset_deassert(struct reset_controller_dev *rcdev, -+ unsigned long id) -+{ -+ return bcm63268_timer_reset_update(rcdev, id, false); -+} -+ -+static int bcm63268_timer_reset_reset(struct reset_controller_dev *rcdev, -+ unsigned long id) -+{ -+ bcm63268_timer_reset_update(rcdev, id, true); -+ usleep_range(BCM63268_TIMER_RESET_SLEEP_MIN_US, -+ BCM63268_TIMER_RESET_SLEEP_MAX_US); -+ -+ bcm63268_timer_reset_update(rcdev, id, false); -+ /* -+ * Ensure component is taken out reset state by sleeping also after -+ * deasserting the reset. Otherwise, the component may not be ready -+ * for operation. -+ */ -+ usleep_range(BCM63268_TIMER_RESET_SLEEP_MIN_US, -+ BCM63268_TIMER_RESET_SLEEP_MAX_US); -+ -+ return 0; -+} -+ -+static int bcm63268_timer_reset_status(struct reset_controller_dev *rcdev, -+ unsigned long id) -+{ -+ struct bcm63268_tclkrst_hw *reset = to_bcm63268_timer_reset(rcdev); -+ -+ return !(__raw_readl(reset->regs) & BIT(id)); -+} -+ -+static struct reset_control_ops bcm63268_timer_reset_ops = { -+ .assert = bcm63268_timer_reset_assert, -+ .deassert = bcm63268_timer_reset_deassert, -+ .reset = bcm63268_timer_reset_reset, -+ .status = bcm63268_timer_reset_status, -+}; -+ -+static int bcm63268_tclk_probe(struct platform_device *pdev) -+{ -+ struct device *dev = &pdev->dev; -+ const struct bcm63268_tclk_table_entry *entry, *table; -+ struct bcm63268_tclkrst_hw *hw; -+ u8 maxbit = 0; -+ int i, ret; -+ -+ table = of_device_get_match_data(dev); -+ if (!table) -+ return -EINVAL; -+ -+ for (entry = table; entry->name; entry++) -+ maxbit = max_t(u8, maxbit, entry->bit); -+ maxbit++; -+ -+ hw = devm_kzalloc(&pdev->dev, struct_size(hw, data.hws, maxbit), -+ GFP_KERNEL); -+ if (!hw) -+ return -ENOMEM; -+ -+ platform_set_drvdata(pdev, hw); -+ -+ spin_lock_init(&hw->lock); -+ -+ hw->data.num = maxbit; -+ for (i = 0; i < maxbit; i++) -+ hw->data.hws[i] = ERR_PTR(-ENODEV); -+ -+ hw->regs = devm_platform_ioremap_resource(pdev, 0); -+ if (IS_ERR(hw->regs)) -+ return PTR_ERR(hw->regs); -+ -+ for (entry = table; entry->name; entry++) { -+ struct clk_hw *clk; -+ -+ clk = clk_hw_register_gate(dev, entry->name, NULL, -+ entry->flags, hw->regs, entry->bit, -+ CLK_GATE_BIG_ENDIAN, &hw->lock); -+ if (IS_ERR(clk)) { -+ ret = PTR_ERR(clk); -+ goto out_err; -+ } -+ -+ hw->data.hws[entry->bit] = clk; -+ } -+ -+ ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get, -+ &hw->data); -+ if (!ret) -+ return 0; -+ -+ hw->rcdev.of_node = dev->of_node; -+ hw->rcdev.ops = &bcm63268_timer_reset_ops; -+ -+ ret = devm_reset_controller_register(dev, &hw->rcdev); -+ if (ret) -+ dev_err(dev, "Failed to register reset controller\n"); -+ -+out_err: -+ for (i = 0; i < hw->data.num; i++) { -+ if (!IS_ERR(hw->data.hws[i])) -+ clk_hw_unregister_gate(hw->data.hws[i]); -+ } -+ -+ return ret; -+} -+ -+static const struct of_device_id bcm63268_tclk_dt_ids[] = { -+ { -+ .compatible = "brcm,bcm63268-timer-clocks", -+ .data = &bcm63268_timer_clocks, -+ }, { -+ /* sentinel */ -+ } -+}; -+ -+static struct platform_driver bcm63268_tclk = { -+ .probe = bcm63268_tclk_probe, -+ .driver = { -+ .name = "bcm63268-timer-clock", -+ .of_match_table = bcm63268_tclk_dt_ids, -+ }, -+}; -+builtin_platform_driver(bcm63268_tclk); diff --git a/target/linux/generic/backport-5.15/080-v5.17-clk-gate-Add-devm_clk_hw_register_gate.patch b/target/linux/generic/backport-5.15/080-v5.17-clk-gate-Add-devm_clk_hw_register_gate.patch new file mode 100644 index 0000000000..51c23b6e34 --- /dev/null +++ b/target/linux/generic/backport-5.15/080-v5.17-clk-gate-Add-devm_clk_hw_register_gate.patch @@ -0,0 +1,105 @@ +From 815f0e738a8d5663a02350e2580706829144a722 Mon Sep 17 00:00:00 2001 +From: Horatiu Vultur +Date: Wed, 3 Nov 2021 09:50:59 +0100 +Subject: [PATCH] clk: gate: Add devm_clk_hw_register_gate() + +Add devm_clk_hw_register_gate() - devres-managed version of +clk_hw_register_gate() + +Suggested-by: Stephen Boyd +Signed-off-by: Horatiu Vultur +Acked-by: Nicolas Ferre +Signed-off-by: Nicolas Ferre +Link: https://lore.kernel.org/r/20211103085102.1656081-2-horatiu.vultur@microchip.com +--- + drivers/clk/clk-gate.c | 35 +++++++++++++++++++++++++++++++++++ + include/linux/clk-provider.h | 23 +++++++++++++++++++++++ + 2 files changed, 58 insertions(+) + +--- a/drivers/clk/clk-gate.c ++++ b/drivers/clk/clk-gate.c +@@ -7,6 +7,7 @@ + */ + + #include ++#include + #include + #include + #include +@@ -222,3 +223,37 @@ void clk_hw_unregister_gate(struct clk_h + kfree(gate); + } + EXPORT_SYMBOL_GPL(clk_hw_unregister_gate); ++ ++static void devm_clk_hw_release_gate(struct device *dev, void *res) ++{ ++ clk_hw_unregister_gate(*(struct clk_hw **)res); ++} ++ ++struct clk_hw *__devm_clk_hw_register_gate(struct device *dev, ++ struct device_node *np, const char *name, ++ const char *parent_name, const struct clk_hw *parent_hw, ++ const struct clk_parent_data *parent_data, ++ unsigned long flags, ++ void __iomem *reg, u8 bit_idx, ++ u8 clk_gate_flags, spinlock_t *lock) ++{ ++ struct clk_hw **ptr, *hw; ++ ++ ptr = devres_alloc(devm_clk_hw_release_gate, sizeof(*ptr), GFP_KERNEL); ++ if (!ptr) ++ return ERR_PTR(-ENOMEM); ++ ++ hw = __clk_hw_register_gate(dev, np, name, parent_name, parent_hw, ++ parent_data, flags, reg, bit_idx, ++ clk_gate_flags, lock); ++ ++ if (!IS_ERR(hw)) { ++ *ptr = hw; ++ devres_add(dev, ptr); ++ } else { ++ devres_free(ptr); ++ } ++ ++ return hw; ++} ++EXPORT_SYMBOL_GPL(__devm_clk_hw_register_gate); +--- a/include/linux/clk-provider.h ++++ b/include/linux/clk-provider.h +@@ -490,6 +490,13 @@ struct clk_hw *__clk_hw_register_gate(st + unsigned long flags, + void __iomem *reg, u8 bit_idx, + u8 clk_gate_flags, spinlock_t *lock); ++struct clk_hw *__devm_clk_hw_register_gate(struct device *dev, ++ struct device_node *np, const char *name, ++ const char *parent_name, const struct clk_hw *parent_hw, ++ const struct clk_parent_data *parent_data, ++ unsigned long flags, ++ void __iomem *reg, u8 bit_idx, ++ u8 clk_gate_flags, spinlock_t *lock); + struct clk *clk_register_gate(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, + void __iomem *reg, u8 bit_idx, +@@ -544,6 +551,22 @@ struct clk *clk_register_gate(struct dev + __clk_hw_register_gate((dev), NULL, (name), NULL, NULL, (parent_data), \ + (flags), (reg), (bit_idx), \ + (clk_gate_flags), (lock)) ++/** ++ * devm_clk_hw_register_gate - register a gate clock with the clock framework ++ * @dev: device that is registering this clock ++ * @name: name of this clock ++ * @parent_name: name of this clock's parent ++ * @flags: framework-specific flags for this clock ++ * @reg: register address to control gating of this clock ++ * @bit_idx: which bit in the register controls gating of this clock ++ * @clk_gate_flags: gate-specific flags for this clock ++ * @lock: shared register lock for this clock ++ */ ++#define devm_clk_hw_register_gate(dev, name, parent_name, flags, reg, bit_idx,\ ++ clk_gate_flags, lock) \ ++ __devm_clk_hw_register_gate((dev), NULL, (name), (parent_name), NULL, \ ++ NULL, (flags), (reg), (bit_idx), \ ++ (clk_gate_flags), (lock)) + void clk_unregister_gate(struct clk *clk); + void clk_hw_unregister_gate(struct clk_hw *hw); + int clk_gate_is_enabled(struct clk_hw *hw); diff --git a/target/linux/generic/pending-5.15/850-dt-bindings-clk-add-BCM63268-timer-clock-definitions.patch b/target/linux/generic/pending-5.15/850-dt-bindings-clk-add-BCM63268-timer-clock-definitions.patch new file mode 100644 index 0000000000..cc6f1e0d9d --- /dev/null +++ b/target/linux/generic/pending-5.15/850-dt-bindings-clk-add-BCM63268-timer-clock-definitions.patch @@ -0,0 +1,114 @@ +From patchwork Wed Mar 22 17:15:12 2023 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 8bit +X-Patchwork-Submitter: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= + +X-Patchwork-Id: 13184389 +Return-Path: +X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on + aws-us-west-2-korg-lkml-1.web.codeaurora.org +Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) + by smtp.lore.kernel.org (Postfix) with ESMTP id 73F2DC6FD1C + for ; Wed, 22 Mar 2023 17:15:59 +0000 (UTC) +Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand + id S231363AbjCVRP5 (ORCPT ); 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+ Wed, 22 Mar 2023 10:15:22 -0700 (PDT) +Received: from atlantis.lan (255.red-79-146-124.dynamicip.rima-tde.net. + [79.146.124.255]) + by smtp.gmail.com with ESMTPSA id + v10-20020a05600c470a00b003ee11ac2288sm8414333wmo.21.2023.03.22.10.15.21 + (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); + Wed, 22 Mar 2023 10:15:22 -0700 (PDT) +From: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= +To: mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org, + krzysztof.kozlowski+dt@linaro.org, p.zabel@pengutronix.de, + f.fainelli@gmail.com, jonas.gorski@gmail.com, + william.zhang@broadcom.com, linux-clk@vger.kernel.org, + devicetree@vger.kernel.org, linux-kernel@vger.kernel.org +Cc: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= , + Rob Herring +Subject: [PATCH v4 1/4] dt-bindings: clk: add BCM63268 timer clock definitions +Date: Wed, 22 Mar 2023 18:15:12 +0100 +Message-Id: <20230322171515.120353-2-noltari@gmail.com> +X-Mailer: git-send-email 2.30.2 +In-Reply-To: <20230322171515.120353-1-noltari@gmail.com> +References: <20230322171515.120353-1-noltari@gmail.com> +MIME-Version: 1.0 +Precedence: bulk +List-ID: +X-Mailing-List: linux-clk@vger.kernel.org + +Add missing timer clock definitions for BCM63268. + +Signed-off-by: Álvaro Fernández Rojas +Acked-by: Rob Herring +--- + v4: no changes + v3: no changes + v2: change commit title, as suggested by Stephen Boyd + + include/dt-bindings/clock/bcm63268-clock.h | 13 +++++++++++++ + 1 file changed, 13 insertions(+) + +--- a/include/dt-bindings/clock/bcm63268-clock.h ++++ b/include/dt-bindings/clock/bcm63268-clock.h +@@ -27,4 +27,17 @@ + #define BCM63268_CLK_TBUS 27 + #define BCM63268_CLK_ROBOSW250 31 + ++#define BCM63268_TCLK_EPHY1 0 ++#define BCM63268_TCLK_EPHY2 1 ++#define BCM63268_TCLK_EPHY3 2 ++#define BCM63268_TCLK_GPHY1 3 ++#define BCM63268_TCLK_DSL 4 ++#define BCM63268_TCLK_WAKEON_EPHY 6 ++#define BCM63268_TCLK_WAKEON_DSL 7 ++#define BCM63268_TCLK_FAP1 11 ++#define BCM63268_TCLK_FAP2 15 ++#define BCM63268_TCLK_UTO_50 16 ++#define BCM63268_TCLK_UTO_EXTIN 17 ++#define BCM63268_TCLK_USB_REF 18 ++ + #endif /* __DT_BINDINGS_CLOCK_BCM63268_H */ diff --git a/target/linux/generic/pending-5.15/851-dt-bindings-reset-add-BCM63268-timer-reset-definitions.patch b/target/linux/generic/pending-5.15/851-dt-bindings-reset-add-BCM63268-timer-reset-definitions.patch new file mode 100644 index 0000000000..5f1be105ac --- /dev/null +++ b/target/linux/generic/pending-5.15/851-dt-bindings-reset-add-BCM63268-timer-reset-definitions.patch @@ -0,0 +1,107 @@ +From patchwork Wed Mar 22 17:15:13 2023 +Content-Type: text/plain; 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+ Wed, 22 Mar 2023 10:15:23 -0700 (PDT) +From: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= +To: mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org, + krzysztof.kozlowski+dt@linaro.org, p.zabel@pengutronix.de, + f.fainelli@gmail.com, jonas.gorski@gmail.com, + william.zhang@broadcom.com, linux-clk@vger.kernel.org, + devicetree@vger.kernel.org, linux-kernel@vger.kernel.org +Cc: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= , + Rob Herring +Subject: [PATCH v4 2/4] dt-bindings: reset: add BCM63268 timer reset + definitions +Date: Wed, 22 Mar 2023 18:15:13 +0100 +Message-Id: <20230322171515.120353-3-noltari@gmail.com> +X-Mailer: git-send-email 2.30.2 +In-Reply-To: <20230322171515.120353-1-noltari@gmail.com> +References: <20230322171515.120353-1-noltari@gmail.com> +MIME-Version: 1.0 +Precedence: bulk +List-ID: +X-Mailing-List: linux-clk@vger.kernel.org + +Add missing timer reset definitions for BCM63268. + +Signed-off-by: Álvaro Fernández Rojas +Acked-by: Rob Herring +--- + v4: no changes + v3: no changes + v2: change commit title, as suggested by Stephen Boyd + + include/dt-bindings/reset/bcm63268-reset.h | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/include/dt-bindings/reset/bcm63268-reset.h ++++ b/include/dt-bindings/reset/bcm63268-reset.h +@@ -23,4 +23,8 @@ + #define BCM63268_RST_PCIE_HARD 17 + #define BCM63268_RST_GPHY 18 + ++#define BCM63268_TRST_SW 29 ++#define BCM63268_TRST_HW 30 ++#define BCM63268_TRST_POR 31 ++ + #endif /* __DT_BINDINGS_RESET_BCM63268_H */ diff --git a/target/linux/generic/pending-5.15/852-clk-bcm-Add-BCM63268-timer-clock-and-reset-driver.patch b/target/linux/generic/pending-5.15/852-clk-bcm-Add-BCM63268-timer-clock-and-reset-driver.patch new file mode 100644 index 0000000000..7e500cd1b5 --- /dev/null +++ b/target/linux/generic/pending-5.15/852-clk-bcm-Add-BCM63268-timer-clock-and-reset-driver.patch @@ -0,0 +1,345 @@ +From patchwork Wed Mar 22 17:15:15 2023 +Content-Type: text/plain; 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+ Wed, 22 Mar 2023 10:15:25 -0700 (PDT) +From: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= +To: mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org, + krzysztof.kozlowski+dt@linaro.org, p.zabel@pengutronix.de, + f.fainelli@gmail.com, jonas.gorski@gmail.com, + william.zhang@broadcom.com, linux-clk@vger.kernel.org, + devicetree@vger.kernel.org, linux-kernel@vger.kernel.org +Cc: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= +Subject: [PATCH v4 4/4] clk: bcm: Add BCM63268 timer clock and reset driver +Date: Wed, 22 Mar 2023 18:15:15 +0100 +Message-Id: <20230322171515.120353-5-noltari@gmail.com> +X-Mailer: git-send-email 2.30.2 +In-Reply-To: <20230322171515.120353-1-noltari@gmail.com> +References: <20230322171515.120353-1-noltari@gmail.com> +MIME-Version: 1.0 +Precedence: bulk +List-ID: +X-Mailing-List: linux-clk@vger.kernel.org + +Add driver for BCM63268 timer clock and reset controller. + +Signed-off-by: Álvaro Fernández Rojas +--- + v4: add changes suggested by Stephen Boyd: + - Usage of of_device_get_match_data() isn't needed. + - Use devm_clk_hw_register_gate(). + - Drop clk_hw_unregister_gate(). + v3: add missing include to fix build warning + v2: add changes suggested by Stephen Boyd + + drivers/clk/bcm/Kconfig | 9 ++ + drivers/clk/bcm/Makefile | 1 + + drivers/clk/bcm/clk-bcm63268-timer.c | 215 +++++++++++++++++++++++++++ + 3 files changed, 225 insertions(+) + create mode 100644 drivers/clk/bcm/clk-bcm63268-timer.c + +--- a/drivers/clk/bcm/Kconfig ++++ b/drivers/clk/bcm/Kconfig +@@ -37,6 +37,15 @@ config CLK_BCM_63XX_GATE + Enable common clock framework support for Broadcom BCM63xx DSL SoCs + based on the MIPS architecture + ++config CLK_BCM63268_TIMER ++ bool "Broadcom BCM63268 timer clock and reset support" ++ depends on BMIPS_GENERIC || COMPILE_TEST ++ default BMIPS_GENERIC ++ select RESET_CONTROLLER ++ help ++ Enable timer clock and reset support for Broadcom BCM63268 DSL SoCs ++ based on the MIPS architecture. ++ + config CLK_BCM_KONA + bool "Broadcom Kona CCU clock support" + depends on ARCH_BCM_MOBILE || COMPILE_TEST +--- a/drivers/clk/bcm/Makefile ++++ b/drivers/clk/bcm/Makefile +@@ -1,6 +1,7 @@ + # SPDX-License-Identifier: GPL-2.0 + obj-$(CONFIG_CLK_BCM_63XX) += clk-bcm63xx.o + obj-$(CONFIG_CLK_BCM_63XX_GATE) += clk-bcm63xx-gate.o ++obj-$(CONFIG_CLK_BCM63268_TIMER) += clk-bcm63268-timer.o + obj-$(CONFIG_CLK_BCM_KONA) += clk-kona.o + obj-$(CONFIG_CLK_BCM_KONA) += clk-kona-setup.o + obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm281xx.o +--- /dev/null ++++ b/drivers/clk/bcm/clk-bcm63268-timer.c +@@ -0,0 +1,215 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * BCM63268 Timer Clock and Reset Controller Driver ++ * ++ * Copyright (C) 2023 Álvaro Fernández Rojas ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++#define BCM63268_TIMER_RESET_SLEEP_MIN_US 10000 ++#define BCM63268_TIMER_RESET_SLEEP_MAX_US 20000 ++ ++struct bcm63268_tclkrst_hw { ++ void __iomem *regs; ++ spinlock_t lock; ++ ++ struct reset_controller_dev rcdev; ++ struct clk_hw_onecell_data data; ++}; ++ ++struct bcm63268_tclk_table_entry { ++ const char * const name; ++ u8 bit; ++}; ++ ++static const struct bcm63268_tclk_table_entry bcm63268_timer_clocks[] = { ++ { ++ .name = "ephy1", ++ .bit = BCM63268_TCLK_EPHY1, ++ }, { ++ .name = "ephy2", ++ .bit = BCM63268_TCLK_EPHY2, ++ }, { ++ .name = "ephy3", ++ .bit = BCM63268_TCLK_EPHY3, ++ }, { ++ .name = "gphy1", ++ .bit = BCM63268_TCLK_GPHY1, ++ }, { ++ .name = "dsl", ++ .bit = BCM63268_TCLK_DSL, ++ }, { ++ .name = "wakeon_ephy", ++ .bit = BCM63268_TCLK_WAKEON_EPHY, ++ }, { ++ .name = "wakeon_dsl", ++ .bit = BCM63268_TCLK_WAKEON_DSL, ++ }, { ++ .name = "fap1_pll", ++ .bit = BCM63268_TCLK_FAP1, ++ }, { ++ .name = "fap2_pll", ++ .bit = BCM63268_TCLK_FAP2, ++ }, { ++ .name = "uto_50", ++ .bit = BCM63268_TCLK_UTO_50, ++ }, { ++ .name = "uto_extin", ++ .bit = BCM63268_TCLK_UTO_EXTIN, ++ }, { ++ .name = "usb_ref", ++ .bit = BCM63268_TCLK_USB_REF, ++ }, { ++ /* sentinel */ ++ } ++}; ++ ++static inline struct bcm63268_tclkrst_hw * ++to_bcm63268_timer_reset(struct reset_controller_dev *rcdev) ++{ ++ return container_of(rcdev, struct bcm63268_tclkrst_hw, rcdev); ++} ++ ++static int bcm63268_timer_reset_update(struct reset_controller_dev *rcdev, ++ unsigned long id, bool assert) ++{ ++ struct bcm63268_tclkrst_hw *reset = to_bcm63268_timer_reset(rcdev); ++ unsigned long flags; ++ uint32_t val; ++ ++ spin_lock_irqsave(&reset->lock, flags); ++ val = __raw_readl(reset->regs); ++ if (assert) ++ val &= ~BIT(id); ++ else ++ val |= BIT(id); ++ __raw_writel(val, reset->regs); ++ spin_unlock_irqrestore(&reset->lock, flags); ++ ++ return 0; ++} ++ ++static int bcm63268_timer_reset_assert(struct reset_controller_dev *rcdev, ++ unsigned long id) ++{ ++ return bcm63268_timer_reset_update(rcdev, id, true); ++} ++ ++static int bcm63268_timer_reset_deassert(struct reset_controller_dev *rcdev, ++ unsigned long id) ++{ ++ return bcm63268_timer_reset_update(rcdev, id, false); ++} ++ ++static int bcm63268_timer_reset_reset(struct reset_controller_dev *rcdev, ++ unsigned long id) ++{ ++ bcm63268_timer_reset_update(rcdev, id, true); ++ usleep_range(BCM63268_TIMER_RESET_SLEEP_MIN_US, ++ BCM63268_TIMER_RESET_SLEEP_MAX_US); ++ ++ bcm63268_timer_reset_update(rcdev, id, false); ++ /* ++ * Ensure component is taken out reset state by sleeping also after ++ * deasserting the reset. Otherwise, the component may not be ready ++ * for operation. ++ */ ++ usleep_range(BCM63268_TIMER_RESET_SLEEP_MIN_US, ++ BCM63268_TIMER_RESET_SLEEP_MAX_US); ++ ++ return 0; ++} ++ ++static int bcm63268_timer_reset_status(struct reset_controller_dev *rcdev, ++ unsigned long id) ++{ ++ struct bcm63268_tclkrst_hw *reset = to_bcm63268_timer_reset(rcdev); ++ ++ return !(__raw_readl(reset->regs) & BIT(id)); ++} ++ ++static struct reset_control_ops bcm63268_timer_reset_ops = { ++ .assert = bcm63268_timer_reset_assert, ++ .deassert = bcm63268_timer_reset_deassert, ++ .reset = bcm63268_timer_reset_reset, ++ .status = bcm63268_timer_reset_status, ++}; ++ ++static int bcm63268_tclk_probe(struct platform_device *pdev) ++{ ++ struct device *dev = &pdev->dev; ++ const struct bcm63268_tclk_table_entry *entry; ++ struct bcm63268_tclkrst_hw *hw; ++ struct clk_hw *clk; ++ u8 maxbit = 0; ++ int i, ret; ++ ++ for (entry = bcm63268_timer_clocks; entry->name; entry++) ++ maxbit = max(maxbit, entry->bit); ++ maxbit++; ++ ++ hw = devm_kzalloc(&pdev->dev, struct_size(hw, data.hws, maxbit), ++ GFP_KERNEL); ++ if (!hw) ++ return -ENOMEM; ++ ++ platform_set_drvdata(pdev, hw); ++ ++ spin_lock_init(&hw->lock); ++ ++ hw->data.num = maxbit; ++ for (i = 0; i < maxbit; i++) ++ hw->data.hws[i] = ERR_PTR(-ENODEV); ++ ++ hw->regs = devm_platform_ioremap_resource(pdev, 0); ++ if (IS_ERR(hw->regs)) ++ return PTR_ERR(hw->regs); ++ ++ for (entry = bcm63268_timer_clocks; entry->name; entry++) { ++ clk = devm_clk_hw_register_gate(dev, entry->name, NULL, 0, ++ hw->regs, entry->bit, ++ CLK_GATE_BIG_ENDIAN, ++ &hw->lock); ++ if (IS_ERR(clk)) ++ return PTR_ERR(clk); ++ ++ hw->data.hws[entry->bit] = clk; ++ } ++ ++ ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, ++ &hw->data); ++ if (ret) ++ return ret; ++ ++ hw->rcdev.of_node = dev->of_node; ++ hw->rcdev.ops = &bcm63268_timer_reset_ops; ++ ++ ret = devm_reset_controller_register(dev, &hw->rcdev); ++ if (ret) ++ dev_err(dev, "Failed to register reset controller\n"); ++ ++ return 0; ++} ++ ++static const struct of_device_id bcm63268_tclk_dt_ids[] = { ++ { .compatible = "brcm,bcm63268-timer-clocks" }, ++ { /* sentinel */ } ++}; ++ ++static struct platform_driver bcm63268_tclk = { ++ .probe = bcm63268_tclk_probe, ++ .driver = { ++ .name = "bcm63268-timer-clock", ++ .of_match_table = bcm63268_tclk_dt_ids, ++ }, ++}; ++builtin_platform_driver(bcm63268_tclk);