From patchwork Fri Mar 7 00:26:27 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 14005585 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 337A218DB30; Fri, 7 Mar 2025 00:27:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741307224; cv=none; b=M9nAzsAZv3R/E5vzxCYg+FUHh3CNPZBkvZJwfq1yrWcTt6khw3ckrq8Twn8fSpTYOclJsTxPAdVK9y7vJHaYGep2lDAbB3rtvRbpxGKI9yKOJCJS9dYrp8XQrFo3ZXKophHEl5zQJI/rQGY5f2uSVRsoiihfpKiGT9dLMT0O8IE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741307224; c=relaxed/simple; bh=EDF1TWOCK/1aafRwn7qvT8MpE8vDVM+MbD/ZtOlxLRA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Z7bUgWJUMdpnb4V49rg9EUs5kb31e24H7IkZYK59DtQPc/zcGBk5ZB+1h3MsT0/AIOSvh0IZb3h8Hdv9Dr1zyqNsShQfDBwpux3LhoiKlFtaTPmlrhS4h2iRePlaxzKz0hIB+Ax7WTTZXSkHBfi/+pTMQodSc0Tw490R96JJMcQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9F3D91BC0; Thu, 6 Mar 2025 16:27:15 -0800 (PST) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E3D683F673; Thu, 6 Mar 2025 16:27:00 -0800 (PST) From: Andre Przywara To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: Philipp Zabel , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v4 13/14] clk: sunxi-ng: a523: add reset lines Date: Fri, 7 Mar 2025 00:26:27 +0000 Message-ID: <20250307002628.10684-14-andre.przywara@arm.com> X-Mailer: git-send-email 2.46.3 In-Reply-To: <20250307002628.10684-1-andre.przywara@arm.com> References: <20250307002628.10684-1-andre.przywara@arm.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Allwinner SoCs do not contain a separate reset controller, instead the reset lines for the various devices are integrated into the "BGR" (Bus Gate / Reset) registers, for each device group: one for all UARTs, one for all SPI interfaces, and so on. The Allwinner CCU driver also doubles as a reset provider, and since the reset lines are indeed just single bits in those BGR register, we can represent them easily in an array of structs, just containing the register offset and the bit number. Add the location of the reset bits for all devices in the A523/T527 SoCs, using the existing sunxi CCU infrastructure. Signed-off-by: Andre Przywara Reviewed-by: Jernej Skrabec --- drivers/clk/sunxi-ng/ccu-sun55i-a523.c | 84 ++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/drivers/clk/sunxi-ng/ccu-sun55i-a523.c b/drivers/clk/sunxi-ng/ccu-sun55i-a523.c index 736544f6a1415..9efb9fd24b424 100644 --- a/drivers/clk/sunxi-ng/ccu-sun55i-a523.c +++ b/drivers/clk/sunxi-ng/ccu-sun55i-a523.c @@ -1526,11 +1526,95 @@ static struct clk_hw_onecell_data sun55i_a523_hw_clks = { }, }; +static struct ccu_reset_map sun55i_a523_ccu_resets[] = { + [RST_MBUS] = { 0x540, BIT(30) }, + [RST_BUS_NSI] = { 0x54c, BIT(16) }, + [RST_BUS_DE] = { 0x60c, BIT(16) }, + [RST_BUS_DI] = { 0x62c, BIT(16) }, + [RST_BUS_G2D] = { 0x63c, BIT(16) }, + [RST_BUS_SYS] = { 0x64c, BIT(16) }, + [RST_BUS_GPU] = { 0x67c, BIT(16) }, + [RST_BUS_CE] = { 0x68c, BIT(16) }, + [RST_BUS_SYS_CE] = { 0x68c, BIT(17) }, + [RST_BUS_VE] = { 0x69c, BIT(16) }, + [RST_BUS_DMA] = { 0x70c, BIT(16) }, + [RST_BUS_MSGBOX] = { 0x71c, BIT(16) }, + [RST_BUS_SPINLOCK] = { 0x72c, BIT(16) }, + [RST_BUS_CPUXTIMER] = { 0x74c, BIT(16) }, + [RST_BUS_DBG] = { 0x78c, BIT(16) }, + [RST_BUS_PWM0] = { 0x7ac, BIT(16) }, + [RST_BUS_PWM1] = { 0x7ac, BIT(17) }, + [RST_BUS_DRAM] = { 0x80c, BIT(16) }, + [RST_BUS_NAND] = { 0x82c, BIT(16) }, + [RST_BUS_MMC0] = { 0x84c, BIT(16) }, + [RST_BUS_MMC1] = { 0x84c, BIT(17) }, + [RST_BUS_MMC2] = { 0x84c, BIT(18) }, + [RST_BUS_SYSDAP] = { 0x88c, BIT(16) }, + [RST_BUS_UART0] = { 0x90c, BIT(16) }, + [RST_BUS_UART1] = { 0x90c, BIT(17) }, + [RST_BUS_UART2] = { 0x90c, BIT(18) }, + [RST_BUS_UART3] = { 0x90c, BIT(19) }, + [RST_BUS_UART4] = { 0x90c, BIT(20) }, + [RST_BUS_UART5] = { 0x90c, BIT(21) }, + [RST_BUS_UART6] = { 0x90c, BIT(22) }, + [RST_BUS_UART7] = { 0x90c, BIT(23) }, + [RST_BUS_I2C0] = { 0x91c, BIT(16) }, + [RST_BUS_I2C1] = { 0x91c, BIT(17) }, + [RST_BUS_I2C2] = { 0x91c, BIT(18) }, + [RST_BUS_I2C3] = { 0x91c, BIT(19) }, + [RST_BUS_I2C4] = { 0x91c, BIT(20) }, + [RST_BUS_I2C5] = { 0x91c, BIT(21) }, + [RST_BUS_CAN] = { 0x92c, BIT(16) }, + [RST_BUS_SPI0] = { 0x96c, BIT(16) }, + [RST_BUS_SPI1] = { 0x96c, BIT(17) }, + [RST_BUS_SPI2] = { 0x96c, BIT(18) }, + [RST_BUS_SPIFC] = { 0x96c, BIT(19) }, + [RST_BUS_EMAC0] = { 0x97c, BIT(16) }, + [RST_BUS_EMAC1] = { 0x98c, BIT(16) | BIT(17) }, /* GMAC1-AXI */ + [RST_BUS_IR_RX] = { 0x99c, BIT(16) }, + [RST_BUS_IR_TX] = { 0x9cc, BIT(16) }, + [RST_BUS_GPADC0] = { 0x9ec, BIT(16) }, + [RST_BUS_GPADC1] = { 0x9ec, BIT(17) }, + [RST_BUS_THS] = { 0x9fc, BIT(16) }, + [RST_USB_PHY0] = { 0xa70, BIT(30) }, + [RST_USB_PHY1] = { 0xa74, BIT(30) }, + [RST_BUS_OHCI0] = { 0xa8c, BIT(16) }, + [RST_BUS_OHCI1] = { 0xa8c, BIT(17) }, + [RST_BUS_EHCI0] = { 0xa8c, BIT(20) }, + [RST_BUS_EHCI1] = { 0xa8c, BIT(21) }, + [RST_BUS_OTG] = { 0xa8c, BIT(24) }, + [RST_BUS_3] = { 0xa8c, BIT(25) }, /* BSP + register */ + [RST_BUS_LRADC] = { 0xa9c, BIT(16) }, + [RST_BUS_PCIE_USB3] = { 0xaac, BIT(16) }, + [RST_BUS_DISPLAY0_TOP] = { 0xabc, BIT(16) }, + [RST_BUS_DISPLAY1_TOP] = { 0xacc, BIT(16) }, + [RST_BUS_HDMI_MAIN] = { 0xb1c, BIT(16) }, + [RST_BUS_HDMI_SUB] = { 0xb1c, BIT(17) }, + [RST_BUS_MIPI_DSI0] = { 0xb4c, BIT(16) }, + [RST_BUS_MIPI_DSI1] = { 0xb4c, BIT(17) }, + [RST_BUS_TCON_LCD0] = { 0xb7c, BIT(16) }, + [RST_BUS_TCON_LCD1] = { 0xb7c, BIT(17) }, + [RST_BUS_TCON_LCD2] = { 0xb7c, BIT(18) }, + [RST_BUS_TCON_TV0] = { 0xb9c, BIT(16) }, + [RST_BUS_TCON_TV1] = { 0xb9c, BIT(17) }, + [RST_BUS_LVDS0] = { 0xbac, BIT(16) }, + [RST_BUS_LVDS1] = { 0xbac, BIT(17) }, + [RST_BUS_EDP] = { 0xbbc, BIT(16) }, + [RST_BUS_VIDEO_OUT0] = { 0xbcc, BIT(16) }, + [RST_BUS_VIDEO_OUT1] = { 0xbcc, BIT(17) }, + [RST_BUS_LEDC] = { 0xbfc, BIT(16) }, + [RST_BUS_CSI] = { 0xc1c, BIT(16) }, + [RST_BUS_ISP] = { 0xc2c, BIT(16) }, /* BSP + register */ +}; + static const struct sunxi_ccu_desc sun55i_a523_ccu_desc = { .ccu_clks = sun55i_a523_ccu_clks, .num_ccu_clks = ARRAY_SIZE(sun55i_a523_ccu_clks), .hw_clks = &sun55i_a523_hw_clks, + + .resets = sun55i_a523_ccu_resets, + .num_resets = ARRAY_SIZE(sun55i_a523_ccu_resets), }; static const u32 pll_regs[] = {