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From: Andre Przywara <andre.przywara@arm.com>
To: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>,
	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 v3 14/15] clk: sunxi-ng: a523: add reset lines
Date: Tue,  4 Mar 2025 01:28:04 +0000	[thread overview]
Message-ID: <20250304012805.28594-15-andre.przywara@arm.com> (raw)
In-Reply-To: <20250304012805.28594-1-andre.przywara@arm.com>

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 <andre.przywara@arm.com>
---
 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 7d46a5ccbb051..7b2ac2705773f 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[] = {
-- 
2.46.3


  parent reply	other threads:[~2025-03-04  1:31 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-04  1:27 [PATCH v3 00/15] clk: sunxi-ng: add A523 clock support Andre Przywara
2025-03-04  1:27 ` [PATCH v3 01/15] clk: sunxi-ng: mp: introduce dual-divider clock Andre Przywara
2025-03-04  1:27 ` [PATCH v3 02/15] clk: sunxi-ng: mp: provide wrappers for setting feature flags Andre Przywara
2025-03-04  1:27 ` [PATCH v3 03/15] clk: sunxi-ng: Add support for update bit Andre Przywara
2025-03-04 15:28   ` Jernej Škrabec
2025-03-07  0:18     ` Andre Przywara
2025-03-04  1:27 ` [PATCH v3 04/15] dt-bindings: clk: sunxi-ng: document Allwinner A523 CCU Andre Przywara
2025-03-04  8:25   ` Krzysztof Kozlowski
2025-03-04 10:36     ` Andre Przywara
2025-03-04 14:11   ` Rob Herring
2025-03-05 11:34     ` Andre Przywara
2025-03-04  1:27 ` [PATCH v3 05/15] dt-bindings: clk: sunxi-ng: add compatible for the A523 PRCM-CCU Andre Przywara
2025-03-04  8:24   ` Krzysztof Kozlowski
2025-03-04  1:27 ` [PATCH v3 06/15] clk: sunxi-ng: Add support for the A523/T527 CCU PLLs Andre Przywara
2025-03-04  1:27 ` [PATCH v3 07/15] clk: sunxi-ng: a523: Add support for bus clocks Andre Przywara
2025-03-04  1:27 ` [PATCH v3 08/15] clk: sunxi-ng: a523: add video mod clocks Andre Przywara
2025-03-04  1:27 ` [PATCH v3 09/15] clk: sunxi-ng: a523: add system " Andre Przywara
2025-03-04  1:28 ` [PATCH v3 10/15] clk: sunxi-ng: a523: add interface " Andre Przywara
2025-03-04  1:28 ` [PATCH v3 11/15] clk: sunxi-ng: a523: add USB " Andre Przywara
2025-03-04  1:28 ` [PATCH v3 12/15] clk: sunxi-ng: a523: remaining " Andre Przywara
2025-03-04  1:28 ` [PATCH v3 13/15] clk: sunxi-ng: a523: add bus clock gates Andre Przywara
2025-03-04  1:28 ` Andre Przywara [this message]
2025-03-04  1:28 ` [PATCH v3 15/15] clk: sunxi-ng: add support for the A523/T527 PRCM CCU Andre Przywara

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