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[PW_SID:1065563] reset: spacemit: k3: Decouple the composite reset #1602

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[PW_SID:1065563] reset: spacemit: k3: Decouple the composite reset #1602

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5d05297
dt-bindings: soc: spacemit: k3: Decouple composite reset lines
Mar 12, 2026
fe6400d
reset: spacemit: k3: Add individual reset lines for USB, PCIe
Mar 12, 2026
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50 changes: 30 additions & 20 deletions drivers/reset/spacemit/reset-spacemit-k3.c
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Original file line number Diff line number Diff line change
Expand Up @@ -112,16 +112,21 @@ static const struct ccu_reset_data k3_apmu_resets[] = {
[RESET_APMU_SDH0] = RESET_DATA(APMU_SDH0_CLK_RES_CTRL, 0, BIT(1)),
[RESET_APMU_SDH1] = RESET_DATA(APMU_SDH1_CLK_RES_CTRL, 0, BIT(1)),
[RESET_APMU_SDH2] = RESET_DATA(APMU_SDH2_CLK_RES_CTRL, 0, BIT(1)),
[RESET_APMU_USB2] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0,
BIT(1)|BIT(2)|BIT(3)),
[RESET_APMU_USB3_PORTA] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0,
BIT(5)|BIT(6)|BIT(7)),
[RESET_APMU_USB3_PORTB] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0,
BIT(9)|BIT(10)|BIT(11)),
[RESET_APMU_USB3_PORTC] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0,
BIT(13)|BIT(14)|BIT(15)),
[RESET_APMU_USB3_PORTD] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0,
BIT(17)|BIT(18)|BIT(19)),
[RESET_APMU_USB2_AHB] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(1)),
[RESET_APMU_USB2_VCC] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(2)),
[RESET_APMU_USB2_PHY] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(3)),
[RESET_APMU_USB3_A_AHB] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(5)),
[RESET_APMU_USB3_A_VCC] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(6)),
[RESET_APMU_USB3_A_PHY] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(7)),
[RESET_APMU_USB3_B_AHB] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(9)),
[RESET_APMU_USB3_B_VCC] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(10)),
[RESET_APMU_USB3_B_PHY] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(11)),
[RESET_APMU_USB3_C_AHB] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(13)),
[RESET_APMU_USB3_C_VCC] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(14)),
[RESET_APMU_USB3_C_PHY] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(15)),
[RESET_APMU_USB3_D_AHB] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(17)),
[RESET_APMU_USB3_D_VCC] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(18)),
[RESET_APMU_USB3_D_PHY] = RESET_DATA(APMU_USB_CLK_RES_CTRL, 0, BIT(19)),
[RESET_APMU_QSPI] = RESET_DATA(APMU_QSPI_CLK_RES_CTRL, 0, BIT(1)),
[RESET_APMU_QSPI_BUS] = RESET_DATA(APMU_QSPI_CLK_RES_CTRL, 0, BIT(0)),
[RESET_APMU_DMA] = RESET_DATA(APMU_DMA_CLK_RES_CTRL, 0, BIT(0)),
Expand Down Expand Up @@ -164,16 +169,21 @@ static const struct ccu_reset_data k3_apmu_resets[] = {
[RESET_APMU_UFS_ACLK] = RESET_DATA(APMU_UFS_CLK_RES_CTRL, 0, BIT(0)),
[RESET_APMU_EDP0] = RESET_DATA(APMU_LCD_EDP_CTRL, 0, BIT(0)),
[RESET_APMU_EDP1] = RESET_DATA(APMU_LCD_EDP_CTRL, 0, BIT(16)),
[RESET_APMU_PCIE_PORTA] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_A, 0,
BIT(5) | BIT(4) | BIT(3)),
[RESET_APMU_PCIE_PORTB] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_B, 0,
BIT(5) | BIT(4) | BIT(3)),
[RESET_APMU_PCIE_PORTC] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_C, 0,
BIT(5) | BIT(4) | BIT(3)),
[RESET_APMU_PCIE_PORTD] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_D, 0,
BIT(5) | BIT(4) | BIT(3)),
[RESET_APMU_PCIE_PORTE] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_E, 0,
BIT(5) | BIT(4) | BIT(3)),
[RESET_APMU_PCIE_A_DBI] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_A, 0, BIT(3)),
[RESET_APMU_PCIE_A_SLAVE] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_A, 0, BIT(4)),
[RESET_APMU_PCIE_A_MASTER] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_A, 0, BIT(5)),
[RESET_APMU_PCIE_B_DBI] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_B, 0, BIT(3)),
[RESET_APMU_PCIE_B_SLAVE] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_B, 0, BIT(4)),
[RESET_APMU_PCIE_B_MASTER] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_B, 0, BIT(5)),
[RESET_APMU_PCIE_C_DBI] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_C, 0, BIT(3)),
[RESET_APMU_PCIE_C_SLAVE] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_C, 0, BIT(4)),
[RESET_APMU_PCIE_C_MASTER] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_C, 0, BIT(5)),
[RESET_APMU_PCIE_D_DBI] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_D, 0, BIT(3)),
[RESET_APMU_PCIE_D_SLAVE] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_D, 0, BIT(4)),
[RESET_APMU_PCIE_D_MASTER] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_D, 0, BIT(5)),
[RESET_APMU_PCIE_E_DBI] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_E, 0, BIT(3)),
[RESET_APMU_PCIE_E_SLAVE] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_E, 0, BIT(4)),
[RESET_APMU_PCIE_E_MASTER] = RESET_DATA(APMU_PCIE_CLK_RES_CTRL_E, 0, BIT(5)),
[RESET_APMU_EMAC0] = RESET_DATA(APMU_EMAC0_CLK_RES_CTRL, 0, BIT(1)),
[RESET_APMU_EMAC1] = RESET_DATA(APMU_EMAC1_CLK_RES_CTRL, 0, BIT(1)),
[RESET_APMU_EMAC2] = RESET_DATA(APMU_EMAC2_CLK_RES_CTRL, 0, BIT(1)),
Expand Down
42 changes: 32 additions & 10 deletions include/dt-bindings/reset/spacemit,k3-resets.h
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Original file line number Diff line number Diff line change
Expand Up @@ -97,11 +97,7 @@
#define RESET_APMU_SDH0 13
#define RESET_APMU_SDH1 14
#define RESET_APMU_SDH2 15
#define RESET_APMU_USB2 16
#define RESET_APMU_USB3_PORTA 17
#define RESET_APMU_USB3_PORTB 18
#define RESET_APMU_USB3_PORTC 19
#define RESET_APMU_USB3_PORTD 20
/* Deprecated USB 16 - 20 */
#define RESET_APMU_QSPI 21
#define RESET_APMU_QSPI_BUS 22
#define RESET_APMU_DMA 23
Expand Down Expand Up @@ -143,16 +139,42 @@
#define RESET_APMU_UFS_ACLK 59
#define RESET_APMU_EDP0 60
#define RESET_APMU_EDP1 61
#define RESET_APMU_PCIE_PORTA 62
#define RESET_APMU_PCIE_PORTB 63
#define RESET_APMU_PCIE_PORTC 64
#define RESET_APMU_PCIE_PORTD 65
#define RESET_APMU_PCIE_PORTE 66
/* Deprecated PCIe 62 - 66 */
#define RESET_APMU_EMAC0 67
#define RESET_APMU_EMAC1 68
#define RESET_APMU_EMAC2 69
#define RESET_APMU_ESPI_MCLK 70
#define RESET_APMU_ESPI_SCLK 71
#define RESET_APMU_USB2_AHB 72
#define RESET_APMU_USB2_VCC 73
#define RESET_APMU_USB2_PHY 74
#define RESET_APMU_USB3_A_AHB 75
#define RESET_APMU_USB3_A_VCC 76
#define RESET_APMU_USB3_A_PHY 77
#define RESET_APMU_USB3_B_AHB 78
#define RESET_APMU_USB3_B_VCC 79
#define RESET_APMU_USB3_B_PHY 80
#define RESET_APMU_USB3_C_AHB 81
#define RESET_APMU_USB3_C_VCC 82
#define RESET_APMU_USB3_C_PHY 83
#define RESET_APMU_USB3_D_AHB 84
#define RESET_APMU_USB3_D_VCC 85
#define RESET_APMU_USB3_D_PHY 86
#define RESET_APMU_PCIE_A_DBI 87
#define RESET_APMU_PCIE_A_SLAVE 88
#define RESET_APMU_PCIE_A_MASTER 89
#define RESET_APMU_PCIE_B_DBI 90
#define RESET_APMU_PCIE_B_SLAVE 91
#define RESET_APMU_PCIE_B_MASTER 92
#define RESET_APMU_PCIE_C_DBI 93
#define RESET_APMU_PCIE_C_SLAVE 94
#define RESET_APMU_PCIE_C_MASTER 95
#define RESET_APMU_PCIE_D_DBI 96
#define RESET_APMU_PCIE_D_SLAVE 97
#define RESET_APMU_PCIE_D_MASTER 98
#define RESET_APMU_PCIE_E_DBI 99
#define RESET_APMU_PCIE_E_SLAVE 100
#define RESET_APMU_PCIE_E_MASTER 101

/* DCIU resets*/
#define RESET_DCIU_HDMA 0
Expand Down
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