[PATCH v4 8/8] clk: sunxi-ng: a733: Add reset lines

From: Junhui Liu

Date: Mon Sep 21 2026 - 11:57:12 EST

Add the reset lines for the Allwinner A733 SoC. These reset control bits
are integrated into the Bus Gate Reset (BGR) registers, typically
sharing the same register address with their corresponding bus clock
gates. Integrate them into the main CCU driver using the existing
sunxi-ng ccu_reset framework, allowing the CCU to also function as a
reset controller for the SoC.

Tested-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
Reviewed-by: Andre Przywara <andre.przywara@xxxxxxx>
Signed-off-by: Junhui Liu <junhui.liu@xxxxxxxxxxxxx>
---
drivers/clk/sunxi-ng/ccu-sun60i-a733.c | 126 +++++++++++++++++++++++++++++++++
1 file changed, 126 insertions(+)

diff --git a/drivers/clk/sunxi-ng/ccu-sun60i-a733.c b/drivers/clk/sunxi-ng/ccu-sun60i-a733.c
index 1543c2d3f305..cb4209dd8e76 100644
--- a/drivers/clk/sunxi-ng/ccu-sun60i-a733.c
+++ b/drivers/clk/sunxi-ng/ccu-sun60i-a733.c
@@ -19,6 +19,7 @@
#include <dt-bindings/reset/allwinner,sun60i-a733-ccu.h>

#include "ccu_common.h"
+#include "ccu_reset.h"

#include "ccu_div.h"
#include "ccu_gate.h"
@@ -2181,11 +2182,136 @@ static struct clk_hw_onecell_data sun60i_a733_hw_clks = {
.num = CLK_FANOUT3 + 1,
};

+static const struct ccu_reset_map sun60i_a733_ccu_resets[] = {
+ [RST_BUS_ITS_PCIE0] = { 0x574, BIT(16) },
+ [RST_BUS_IOMMU0_SYS] = { 0x58c, BIT(16) },
+ [RST_BUS_MSI_LITE0_AHB] = { 0x594, BIT(16) },
+ [RST_BUS_MSI_LITE0_MBUS] = { 0x594, BIT(17) },
+ [RST_BUS_MSI_LITE1_AHB] = { 0x59c, BIT(16) },
+ [RST_BUS_MSI_LITE1_MBUS] = { 0x59c, BIT(17) },
+ [RST_BUS_MSI_LITE2_AHB] = { 0x5a4, BIT(16) },
+ [RST_BUS_MSI_LITE2_MBUS] = { 0x5a4, BIT(17) },
+ [RST_BUS_IOMMU1_SYS] = { 0x5b4, BIT(16) },
+ [RST_BUS_DMA0] = { 0x704, BIT(16) },
+ [RST_BUS_DMA1] = { 0x70c, BIT(16) },
+ [RST_BUS_SPINLOCK] = { 0x724, BIT(16) },
+ [RST_BUS_MSGBOX] = { 0x744, BIT(16) },
+ [RST_BUS_PWM0] = { 0x784, BIT(16) },
+ [RST_BUS_PWM1] = { 0x78c, BIT(16) },
+ [RST_BUS_DBG] = { 0x7a4, BIT(16) },
+ [RST_BUS_SYSDAP] = { 0x7ac, BIT(16) },
+ [RST_BUS_TIMER0] = { 0x850, BIT(16) },
+ [RST_BUS_DE0] = { 0xa04, BIT(16) },
+ [RST_BUS_DI] = { 0xa24, BIT(16) },
+ [RST_BUS_G2D] = { 0xa44, BIT(16) },
+ [RST_BUS_EINK] = { 0xa6c, BIT(16) },
+ [RST_BUS_DE_SYS] = { 0xa74, BIT(16) },
+ [RST_BUS_VE_ENC0] = { 0xa8c, BIT(16) },
+ [RST_BUS_VE_DEC0] = { 0xa8c, BIT(18) },
+ [RST_BUS_CE] = { 0xac4, BIT(16) },
+ [RST_BUS_CE_SYS] = { 0xac4, BIT(17) },
+ [RST_BUS_NPU_CORE] = { 0xb04, BIT(16) },
+ [RST_BUS_NPU_AXI] = { 0xb04, BIT(17) },
+ [RST_BUS_NPU_AHB] = { 0xb04, BIT(18) },
+ [RST_BUS_NPU_SRAM] = { 0xb04, BIT(19) },
+ [RST_BUS_GPU0] = { 0xb24, BIT(16) },
+ [RST_BUS_DRAM0] = { 0xc0c, BIT(16) },
+ [RST_BUS_NAND0] = { 0xc8c, BIT(16) },
+ [RST_BUS_MMC0] = { 0xd0c, BIT(16) },
+ [RST_BUS_MMC1] = { 0xd1c, BIT(16) },
+ [RST_BUS_MMC2] = { 0xd2c, BIT(16) },
+ [RST_BUS_MMC3] = { 0xd3c, BIT(16) },
+ [RST_BUS_UFS_AHB] = { 0xd8c, BIT(16) },
+ [RST_BUS_UFS_AXI] = { 0xd8c, BIT(17) },
+ [RST_BUS_UFS_PHY] = { 0xd8c, BIT(18) },
+ [RST_BUS_UFS_CORE] = { 0xd8c, BIT(19) },
+ [RST_BUS_UART0] = { 0xe00, BIT(16) },
+ [RST_BUS_UART1] = { 0xe04, BIT(16) },
+ [RST_BUS_UART2] = { 0xe08, BIT(16) },
+ [RST_BUS_UART3] = { 0xe0c, BIT(16) },
+ [RST_BUS_UART4] = { 0xe10, BIT(16) },
+ [RST_BUS_UART5] = { 0xe14, BIT(16) },
+ [RST_BUS_UART6] = { 0xe18, BIT(16) },
+ [RST_BUS_I2C0] = { 0xe80, BIT(16) },
+ [RST_BUS_I2C1] = { 0xe84, BIT(16) },
+ [RST_BUS_I2C2] = { 0xe88, BIT(16) },
+ [RST_BUS_I2C3] = { 0xe8c, BIT(16) },
+ [RST_BUS_I2C4] = { 0xe90, BIT(16) },
+ [RST_BUS_I2C5] = { 0xe94, BIT(16) },
+ [RST_BUS_I2C6] = { 0xe98, BIT(16) },
+ [RST_BUS_I2C7] = { 0xe9c, BIT(16) },
+ [RST_BUS_I2C8] = { 0xea0, BIT(16) },
+ [RST_BUS_I2C9] = { 0xea4, BIT(16) },
+ [RST_BUS_I2C10] = { 0xea8, BIT(16) },
+ [RST_BUS_I2C11] = { 0xeac, BIT(16) },
+ [RST_BUS_I2C12] = { 0xeb0, BIT(16) },
+ [RST_BUS_SPI0] = { 0xf04, BIT(16) },
+ [RST_BUS_SPI1] = { 0xf0c, BIT(16) },
+ [RST_BUS_SPI2] = { 0xf14, BIT(16) },
+ [RST_BUS_SPIF] = { 0xf1c, BIT(16) },
+ [RST_BUS_SPI3] = { 0xf24, BIT(16) },
+ [RST_BUS_SPI4] = { 0xf2c, BIT(16) }, /* From the vendor kernel. */
+ [RST_BUS_GPADC0] = { 0xfc4, BIT(16) },
+ [RST_BUS_THS0] = { 0xfe4, BIT(16) },
+ [RST_BUS_IRRX] = { 0x1004, BIT(16) },
+ [RST_BUS_IRTX] = { 0x100c, BIT(16) },
+ [RST_BUS_LRADC] = { 0x1024, BIT(16) },
+ [RST_BUS_SGPIO] = { 0x1064, BIT(16) }, /* From the vendor kernel. */
+ [RST_BUS_LPC] = { 0x1084, BIT(16) }, /* From the vendor kernel. */
+ [RST_BUS_I2SPCM0] = { 0x120c, BIT(16) },
+ [RST_BUS_I2SPCM1] = { 0x121c, BIT(16) },
+ [RST_BUS_I2SPCM2] = { 0x122c, BIT(16) },
+ [RST_BUS_I2SPCM3] = { 0x123c, BIT(16) },
+ [RST_BUS_I2SPCM4] = { 0x124c, BIT(16) },
+ [RST_BUS_SPDIF] = { 0x128c, BIT(16) },
+ [RST_BUS_DMIC] = { 0x12cc, BIT(16) },
+ [RST_USB_PHY0] = { 0x1300, BIT(30) },
+ [RST_BUS_OHCI0] = { 0x1304, BIT(16) },
+ [RST_BUS_EHCI0] = { 0x1304, BIT(20) },
+ [RST_BUS_OTG] = { 0x1304, BIT(24) },
+ [RST_USB_PHY1] = { 0x1308, BIT(30) },
+ [RST_BUS_OHCI1] = { 0x130c, BIT(16) },
+ [RST_BUS_EHCI1] = { 0x130c, BIT(20) },
+ [RST_BUS_USB2] = { 0x135c, BIT(16) },
+ [RST_BUS_PCIE_PWRUP] = { 0x138c, BIT(16) },
+ [RST_BUS_PCIE] = { 0x138c, BIT(17) },
+ [RST_BUS_SERDES] = { 0x13c4, BIT(16) },
+ [RST_BUS_GMAC0] = { 0x141c, BIT(16) },
+ [RST_BUS_GMAC0_AXI] = { 0x141c, BIT(17) },
+ [RST_BUS_GMAC1] = { 0x142c, BIT(16) }, /* From the vendor kernel. */
+ [RST_BUS_GMAC1_AXI] = { 0x142c, BIT(17) }, /* From the vendor kernel. */
+ [RST_BUS_TCON_LCD0] = { 0x1504, BIT(16) },
+ [RST_BUS_TCON_LCD1] = { 0x150c, BIT(16) },
+ [RST_BUS_TCON_LCD2] = { 0x1514, BIT(16) }, /* From the vendor kernel. */
+ [RST_BUS_LVDS0] = { 0x1544, BIT(16) },
+ [RST_BUS_LVDS1] = { 0x154c, BIT(16) },
+ [RST_BUS_DSI0] = { 0x1584, BIT(16) },
+ [RST_BUS_DSI1] = { 0x158c, BIT(16) },
+ [RST_BUS_TCON_TV0] = { 0x1604, BIT(16) },
+ [RST_BUS_TCON_TV1] = { 0x160c, BIT(16) },
+ [RST_BUS_EDP] = { 0x164c, BIT(16) },
+ [RST_BUS_HDMI_MAIN] = { 0x168c, BIT(16) },
+ [RST_BUS_HDMI_SUB] = { 0x168c, BIT(17) },
+ [RST_BUS_HDMI_HDCP] = { 0x168c, BIT(18) },
+ [RST_BUS_DPSS_TOP0] = { 0x16c4, BIT(16) },
+ [RST_BUS_DPSS_TOP1] = { 0x16cc, BIT(16) },
+ [RST_BUS_VIDEO_OUT0] = { 0x16e4, BIT(16) },
+ [RST_BUS_VIDEO_OUT1] = { 0x16ec, BIT(16) },
+ [RST_BUS_LEDC] = { 0x1704, BIT(16) },
+ [RST_BUS_DSC] = { 0x1744, BIT(16) },
+ [RST_BUS_CSI] = { 0x1844, BIT(16) },
+ [RST_BUS_VIDEO_IN] = { 0x1884, BIT(16) },
+ [RST_BUS_APB2JTAG] = { 0x1c04, BIT(16) },
+};
+
static const struct sunxi_ccu_desc sun60i_a733_ccu_desc = {
.ccu_clks = sun60i_a733_ccu_clks,
.num_ccu_clks = ARRAY_SIZE(sun60i_a733_ccu_clks),

.hw_clks = &sun60i_a733_hw_clks,
+
+ .resets = sun60i_a733_ccu_resets,
+ .num_resets = ARRAY_SIZE(sun60i_a733_ccu_resets),
};

static const u32 pll_regs[] = {

--
2.55.0