From: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org
[ Upstream commit 39171b33f6523f28c1c1256427e5f50c74b69639 ]
The PCIE part is redundant and 20 doesn't represent anything across the SoCs supported now. So let's get rid of the prefix.
This involves adding the IP version suffix to one definition of PARF_SLV_ADDR_SPACE_SIZE that defines offset specific to that version. The other definition is generic for the rest of the versions.
Also, the register PCIE20_LNK_CONTROL2_LINK_STATUS2 is not used anywhere, hence removed.
Link: https://lore.kernel.org/r/20230316081117.14288-3-manivannan.sadhasivam@linar... Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Signed-off-by: Lorenzo Pieralisi lpieralisi@kernel.org Stable-dep-of: 60f0072d7fb7 ("PCI: qcom: Use DWC helpers for modifying the read-only DBI registers") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/controller/dwc/pcie-qcom.c | 184 ++++++++++++------------- 1 file changed, 91 insertions(+), 93 deletions(-)
diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index dbe6df0cb6118..b587957211c3f 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -31,7 +31,7 @@ #include "../../pci.h" #include "pcie-designware.h"
-#define PCIE20_PARF_SYS_CTRL 0x00 +#define PARF_SYS_CTRL 0x00 #define MST_WAKEUP_EN BIT(13) #define SLV_WAKEUP_EN BIT(12) #define MSTR_ACLK_CGC_DIS BIT(10) @@ -41,39 +41,39 @@ #define L23_CLK_RMV_DIS BIT(2) #define L1_CLK_RMV_DIS BIT(1)
-#define PCIE20_PARF_PM_CTRL 0x20 +#define PARF_PM_CTRL 0x20 #define REQ_NOT_ENTR_L1 BIT(5)
-#define PCIE20_PARF_PHY_CTRL 0x40 +#define PARF_PHY_CTRL 0x40 #define PHY_CTRL_PHY_TX0_TERM_OFFSET_MASK GENMASK(20, 16) #define PHY_CTRL_PHY_TX0_TERM_OFFSET(x) ((x) << 16)
-#define PCIE20_PARF_PHY_REFCLK 0x4C +#define PARF_PHY_REFCLK 0x4C #define PHY_REFCLK_SSP_EN BIT(16) #define PHY_REFCLK_USE_PAD BIT(12)
-#define PCIE20_PARF_DBI_BASE_ADDR 0x168 -#define PCIE20_PARF_SLV_ADDR_SPACE_SIZE 0x16C -#define PCIE20_PARF_MHI_CLOCK_RESET_CTRL 0x174 +#define PARF_DBI_BASE_ADDR 0x168 +#define PARF_SLV_ADDR_SPACE_SIZE_2_3_3 0x16C /* Register offset specific to IP rev 2.3.3 */ +#define PARF_MHI_CLOCK_RESET_CTRL 0x174 #define AHB_CLK_EN BIT(0) #define MSTR_AXI_CLK_EN BIT(1) #define BYPASS BIT(4)
-#define PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT 0x178 -#define PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2 0x1A8 -#define PCIE20_PARF_LTSSM 0x1B0 -#define PCIE20_PARF_SID_OFFSET 0x234 -#define PCIE20_PARF_BDF_TRANSLATE_CFG 0x24C -#define PCIE20_PARF_DEVICE_TYPE 0x1000 -#define PCIE20_PARF_BDF_TO_SID_TABLE_N 0x2000 +#define PARF_AXI_MSTR_WR_ADDR_HALT 0x178 +#define PARF_AXI_MSTR_WR_ADDR_HALT_V2 0x1A8 +#define PARF_LTSSM 0x1B0 +#define PARF_SID_OFFSET 0x234 +#define PARF_BDF_TRANSLATE_CFG 0x24C +#define PARF_DEVICE_TYPE 0x1000 +#define PARF_BDF_TO_SID_TABLE_N 0x2000
-#define PCIE20_ELBI_SYS_CTRL 0x04 -#define PCIE20_ELBI_SYS_CTRL_LT_ENABLE BIT(0) +#define ELBI_SYS_CTRL 0x04 +#define ELBI_SYS_CTRL_LT_ENABLE BIT(0)
-#define PCIE20_AXI_MSTR_RESP_COMP_CTRL0 0x818 +#define AXI_MSTR_RESP_COMP_CTRL0 0x818 #define CFG_REMOTE_RD_REQ_BRIDGE_SIZE_2K 0x4 #define CFG_REMOTE_RD_REQ_BRIDGE_SIZE_4K 0x5 -#define PCIE20_AXI_MSTR_RESP_COMP_CTRL1 0x81c +#define AXI_MSTR_RESP_COMP_CTRL1 0x81c #define CFG_BRIDGE_SB_INIT BIT(0)
#define PCIE_CAP_SLOT_POWER_LIMIT_VAL FIELD_PREP(PCI_EXP_SLTCAP_SPLV, \ @@ -91,30 +91,28 @@ PCIE_CAP_SLOT_POWER_LIMIT_VAL | \ PCIE_CAP_SLOT_POWER_LIMIT_SCALE)
-#define PCIE20_PARF_Q2A_FLUSH 0x1AC +#define PARF_Q2A_FLUSH 0x1AC
-#define PCIE20_MISC_CONTROL_1_REG 0x8BC +#define MISC_CONTROL_1_REG 0x8BC #define DBI_RO_WR_EN 1
#define PERST_DELAY_US 1000 /* PARF registers */ -#define PCIE20_PARF_PCS_DEEMPH 0x34 +#define PARF_PCS_DEEMPH 0x34 #define PCS_DEEMPH_TX_DEEMPH_GEN1(x) ((x) << 16) #define PCS_DEEMPH_TX_DEEMPH_GEN2_3_5DB(x) ((x) << 8) #define PCS_DEEMPH_TX_DEEMPH_GEN2_6DB(x) ((x) << 0)
-#define PCIE20_PARF_PCS_SWING 0x38 +#define PARF_PCS_SWING 0x38 #define PCS_SWING_TX_SWING_FULL(x) ((x) << 8) #define PCS_SWING_TX_SWING_LOW(x) ((x) << 0)
-#define PCIE20_PARF_CONFIG_BITS 0x50 +#define PARF_CONFIG_BITS 0x50 #define PHY_RX0_EQ(x) ((x) << 24)
-#define PCIE20_v3_PARF_SLV_ADDR_SPACE_SIZE 0x358 +#define PARF_SLV_ADDR_SPACE_SIZE 0x358 #define SLV_ADDR_SPACE_SZ 0x10000000
-#define PCIE20_LNK_CONTROL2_LINK_STATUS2 0xa0 - #define DEVICE_TYPE_RC 0x4
#define QCOM_PCIE_2_1_0_MAX_SUPPLY 3 @@ -258,9 +256,9 @@ static void qcom_pcie_2_1_0_ltssm_enable(struct qcom_pcie *pcie) u32 val;
/* enable link training */ - val = readl(pcie->elbi + PCIE20_ELBI_SYS_CTRL); - val |= PCIE20_ELBI_SYS_CTRL_LT_ENABLE; - writel(val, pcie->elbi + PCIE20_ELBI_SYS_CTRL); + val = readl(pcie->elbi + ELBI_SYS_CTRL); + val |= ELBI_SYS_CTRL_LT_ENABLE; + writel(val, pcie->elbi + ELBI_SYS_CTRL); }
static int qcom_pcie_get_resources_2_1_0(struct qcom_pcie *pcie) @@ -330,7 +328,7 @@ static void qcom_pcie_deinit_2_1_0(struct qcom_pcie *pcie) reset_control_assert(res->ext_reset); reset_control_assert(res->phy_reset);
- writel(1, pcie->parf + PCIE20_PARF_PHY_CTRL); + writel(1, pcie->parf + PARF_PHY_CTRL);
regulator_bulk_disable(ARRAY_SIZE(res->supplies), res->supplies); } @@ -420,9 +418,9 @@ static int qcom_pcie_post_init_2_1_0(struct qcom_pcie *pcie) int ret;
/* enable PCIe clocks and resets */ - val = readl(pcie->parf + PCIE20_PARF_PHY_CTRL); + val = readl(pcie->parf + PARF_PHY_CTRL); val &= ~BIT(0); - writel(val, pcie->parf + PCIE20_PARF_PHY_CTRL); + writel(val, pcie->parf + PARF_PHY_CTRL);
ret = clk_bulk_prepare_enable(ARRAY_SIZE(res->clks), res->clks); if (ret) @@ -433,37 +431,37 @@ static int qcom_pcie_post_init_2_1_0(struct qcom_pcie *pcie) writel(PCS_DEEMPH_TX_DEEMPH_GEN1(24) | PCS_DEEMPH_TX_DEEMPH_GEN2_3_5DB(24) | PCS_DEEMPH_TX_DEEMPH_GEN2_6DB(34), - pcie->parf + PCIE20_PARF_PCS_DEEMPH); + pcie->parf + PARF_PCS_DEEMPH); writel(PCS_SWING_TX_SWING_FULL(120) | PCS_SWING_TX_SWING_LOW(120), - pcie->parf + PCIE20_PARF_PCS_SWING); - writel(PHY_RX0_EQ(4), pcie->parf + PCIE20_PARF_CONFIG_BITS); + pcie->parf + PARF_PCS_SWING); + writel(PHY_RX0_EQ(4), pcie->parf + PARF_CONFIG_BITS); }
if (of_device_is_compatible(node, "qcom,pcie-ipq8064")) { /* set TX termination offset */ - val = readl(pcie->parf + PCIE20_PARF_PHY_CTRL); + val = readl(pcie->parf + PARF_PHY_CTRL); val &= ~PHY_CTRL_PHY_TX0_TERM_OFFSET_MASK; val |= PHY_CTRL_PHY_TX0_TERM_OFFSET(7); - writel(val, pcie->parf + PCIE20_PARF_PHY_CTRL); + writel(val, pcie->parf + PARF_PHY_CTRL); }
/* enable external reference clock */ - val = readl(pcie->parf + PCIE20_PARF_PHY_REFCLK); + val = readl(pcie->parf + PARF_PHY_REFCLK); /* USE_PAD is required only for ipq806x */ if (!of_device_is_compatible(node, "qcom,pcie-apq8064")) val &= ~PHY_REFCLK_USE_PAD; val |= PHY_REFCLK_SSP_EN; - writel(val, pcie->parf + PCIE20_PARF_PHY_REFCLK); + writel(val, pcie->parf + PARF_PHY_REFCLK);
/* wait for clock acquisition */ usleep_range(1000, 1500);
/* Set the Max TLP size to 2K, instead of using default of 4K */ writel(CFG_REMOTE_RD_REQ_BRIDGE_SIZE_2K, - pci->dbi_base + PCIE20_AXI_MSTR_RESP_COMP_CTRL0); + pci->dbi_base + AXI_MSTR_RESP_COMP_CTRL0); writel(CFG_BRIDGE_SB_INIT, - pci->dbi_base + PCIE20_AXI_MSTR_RESP_COMP_CTRL1); + pci->dbi_base + AXI_MSTR_RESP_COMP_CTRL1);
return 0; } @@ -571,13 +569,13 @@ static int qcom_pcie_init_1_0_0(struct qcom_pcie *pcie) static int qcom_pcie_post_init_1_0_0(struct qcom_pcie *pcie) { /* change DBI base address */ - writel(0, pcie->parf + PCIE20_PARF_DBI_BASE_ADDR); + writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
if (IS_ENABLED(CONFIG_PCI_MSI)) { - u32 val = readl(pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT); + u32 val = readl(pcie->parf + PARF_AXI_MSTR_WR_ADDR_HALT);
val |= BIT(31); - writel(val, pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT); + writel(val, pcie->parf + PARF_AXI_MSTR_WR_ADDR_HALT); }
return 0; @@ -588,9 +586,9 @@ static void qcom_pcie_2_3_2_ltssm_enable(struct qcom_pcie *pcie) u32 val;
/* enable link training */ - val = readl(pcie->parf + PCIE20_PARF_LTSSM); + val = readl(pcie->parf + PARF_LTSSM); val |= BIT(8); - writel(val, pcie->parf + PCIE20_PARF_LTSSM); + writel(val, pcie->parf + PARF_LTSSM); }
static int qcom_pcie_get_resources_2_3_2(struct qcom_pcie *pcie) @@ -695,25 +693,25 @@ static int qcom_pcie_post_init_2_3_2(struct qcom_pcie *pcie) u32 val;
/* enable PCIe clocks and resets */ - val = readl(pcie->parf + PCIE20_PARF_PHY_CTRL); + val = readl(pcie->parf + PARF_PHY_CTRL); val &= ~BIT(0); - writel(val, pcie->parf + PCIE20_PARF_PHY_CTRL); + writel(val, pcie->parf + PARF_PHY_CTRL);
/* change DBI base address */ - writel(0, pcie->parf + PCIE20_PARF_DBI_BASE_ADDR); + writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
/* MAC PHY_POWERDOWN MUX DISABLE */ - val = readl(pcie->parf + PCIE20_PARF_SYS_CTRL); + val = readl(pcie->parf + PARF_SYS_CTRL); val &= ~BIT(29); - writel(val, pcie->parf + PCIE20_PARF_SYS_CTRL); + writel(val, pcie->parf + PARF_SYS_CTRL);
- val = readl(pcie->parf + PCIE20_PARF_MHI_CLOCK_RESET_CTRL); + val = readl(pcie->parf + PARF_MHI_CLOCK_RESET_CTRL); val |= BIT(4); - writel(val, pcie->parf + PCIE20_PARF_MHI_CLOCK_RESET_CTRL); + writel(val, pcie->parf + PARF_MHI_CLOCK_RESET_CTRL);
- val = readl(pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2); + val = readl(pcie->parf + PARF_AXI_MSTR_WR_ADDR_HALT_V2); val |= BIT(31); - writel(val, pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2); + writel(val, pcie->parf + PARF_AXI_MSTR_WR_ADDR_HALT_V2);
return 0; } @@ -974,25 +972,25 @@ static int qcom_pcie_post_init_2_4_0(struct qcom_pcie *pcie) u32 val;
/* enable PCIe clocks and resets */ - val = readl(pcie->parf + PCIE20_PARF_PHY_CTRL); + val = readl(pcie->parf + PARF_PHY_CTRL); val &= ~BIT(0); - writel(val, pcie->parf + PCIE20_PARF_PHY_CTRL); + writel(val, pcie->parf + PARF_PHY_CTRL);
/* change DBI base address */ - writel(0, pcie->parf + PCIE20_PARF_DBI_BASE_ADDR); + writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
/* MAC PHY_POWERDOWN MUX DISABLE */ - val = readl(pcie->parf + PCIE20_PARF_SYS_CTRL); + val = readl(pcie->parf + PARF_SYS_CTRL); val &= ~BIT(29); - writel(val, pcie->parf + PCIE20_PARF_SYS_CTRL); + writel(val, pcie->parf + PARF_SYS_CTRL);
- val = readl(pcie->parf + PCIE20_PARF_MHI_CLOCK_RESET_CTRL); + val = readl(pcie->parf + PARF_MHI_CLOCK_RESET_CTRL); val |= BIT(4); - writel(val, pcie->parf + PCIE20_PARF_MHI_CLOCK_RESET_CTRL); + writel(val, pcie->parf + PARF_MHI_CLOCK_RESET_CTRL);
- val = readl(pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2); + val = readl(pcie->parf + PARF_AXI_MSTR_WR_ADDR_HALT_V2); val |= BIT(31); - writel(val, pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2); + writel(val, pcie->parf + PARF_AXI_MSTR_WR_ADDR_HALT_V2);
return 0; } @@ -1137,22 +1135,22 @@ static int qcom_pcie_post_init_2_3_3(struct qcom_pcie *pcie) u32 val;
writel(SLV_ADDR_SPACE_SZ, - pcie->parf + PCIE20_v3_PARF_SLV_ADDR_SPACE_SIZE); + pcie->parf + PARF_SLV_ADDR_SPACE_SIZE_2_3_3);
- val = readl(pcie->parf + PCIE20_PARF_PHY_CTRL); + val = readl(pcie->parf + PARF_PHY_CTRL); val &= ~BIT(0); - writel(val, pcie->parf + PCIE20_PARF_PHY_CTRL); + writel(val, pcie->parf + PARF_PHY_CTRL);
- writel(0, pcie->parf + PCIE20_PARF_DBI_BASE_ADDR); + writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
writel(MST_WAKEUP_EN | SLV_WAKEUP_EN | MSTR_ACLK_CGC_DIS | SLV_ACLK_CGC_DIS | CORE_CLK_CGC_DIS | AUX_PWR_DET | L23_CLK_RMV_DIS | L1_CLK_RMV_DIS, - pcie->parf + PCIE20_PARF_SYS_CTRL); - writel(0, pcie->parf + PCIE20_PARF_Q2A_FLUSH); + pcie->parf + PARF_SYS_CTRL); + writel(0, pcie->parf + PARF_Q2A_FLUSH);
writel(PCI_COMMAND_MASTER, pci->dbi_base + PCI_COMMAND); - writel(DBI_RO_WR_EN, pci->dbi_base + PCIE20_MISC_CONTROL_1_REG); + writel(DBI_RO_WR_EN, pci->dbi_base + MISC_CONTROL_1_REG); writel(PCIE_CAP_SLOT_VAL, pci->dbi_base + offset + PCI_EXP_SLTCAP);
val = readl(pci->dbi_base + offset + PCI_EXP_LNKCAP); @@ -1252,33 +1250,33 @@ static int qcom_pcie_init_2_7_0(struct qcom_pcie *pcie) usleep_range(1000, 1500);
/* configure PCIe to RC mode */ - writel(DEVICE_TYPE_RC, pcie->parf + PCIE20_PARF_DEVICE_TYPE); + writel(DEVICE_TYPE_RC, pcie->parf + PARF_DEVICE_TYPE);
/* enable PCIe clocks and resets */ - val = readl(pcie->parf + PCIE20_PARF_PHY_CTRL); + val = readl(pcie->parf + PARF_PHY_CTRL); val &= ~BIT(0); - writel(val, pcie->parf + PCIE20_PARF_PHY_CTRL); + writel(val, pcie->parf + PARF_PHY_CTRL);
/* change DBI base address */ - writel(0, pcie->parf + PCIE20_PARF_DBI_BASE_ADDR); + writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
/* MAC PHY_POWERDOWN MUX DISABLE */ - val = readl(pcie->parf + PCIE20_PARF_SYS_CTRL); + val = readl(pcie->parf + PARF_SYS_CTRL); val &= ~BIT(29); - writel(val, pcie->parf + PCIE20_PARF_SYS_CTRL); + writel(val, pcie->parf + PARF_SYS_CTRL);
- val = readl(pcie->parf + PCIE20_PARF_MHI_CLOCK_RESET_CTRL); + val = readl(pcie->parf + PARF_MHI_CLOCK_RESET_CTRL); val |= BIT(4); - writel(val, pcie->parf + PCIE20_PARF_MHI_CLOCK_RESET_CTRL); + writel(val, pcie->parf + PARF_MHI_CLOCK_RESET_CTRL);
/* Enable L1 and L1SS */ - val = readl(pcie->parf + PCIE20_PARF_PM_CTRL); + val = readl(pcie->parf + PARF_PM_CTRL); val &= ~REQ_NOT_ENTR_L1; - writel(val, pcie->parf + PCIE20_PARF_PM_CTRL); + writel(val, pcie->parf + PARF_PM_CTRL);
- val = readl(pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2); + val = readl(pcie->parf + PARF_AXI_MSTR_WR_ADDR_HALT_V2); val |= BIT(31); - writel(val, pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2); + writel(val, pcie->parf + PARF_AXI_MSTR_WR_ADDR_HALT_V2);
return 0; err_disable_clocks: @@ -1366,17 +1364,17 @@ static int qcom_pcie_post_init_2_9_0(struct qcom_pcie *pcie) int i;
writel(SLV_ADDR_SPACE_SZ, - pcie->parf + PCIE20_v3_PARF_SLV_ADDR_SPACE_SIZE); + pcie->parf + PARF_SLV_ADDR_SPACE_SIZE);
- val = readl(pcie->parf + PCIE20_PARF_PHY_CTRL); + val = readl(pcie->parf + PARF_PHY_CTRL); val &= ~BIT(0); - writel(val, pcie->parf + PCIE20_PARF_PHY_CTRL); + writel(val, pcie->parf + PARF_PHY_CTRL);
- writel(0, pcie->parf + PCIE20_PARF_DBI_BASE_ADDR); + writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
- writel(DEVICE_TYPE_RC, pcie->parf + PCIE20_PARF_DEVICE_TYPE); + writel(DEVICE_TYPE_RC, pcie->parf + PARF_DEVICE_TYPE); writel(BYPASS | MSTR_AXI_CLK_EN | AHB_CLK_EN, - pcie->parf + PCIE20_PARF_MHI_CLOCK_RESET_CTRL); + pcie->parf + PARF_MHI_CLOCK_RESET_CTRL); writel(GEN3_RELATED_OFF_RXEQ_RGRDLESS_RXTS | GEN3_RELATED_OFF_GEN3_ZRXDC_NONCOMPL, pci->dbi_base + GEN3_RELATED_OFF); @@ -1384,9 +1382,9 @@ static int qcom_pcie_post_init_2_9_0(struct qcom_pcie *pcie) writel(MST_WAKEUP_EN | SLV_WAKEUP_EN | MSTR_ACLK_CGC_DIS | SLV_ACLK_CGC_DIS | CORE_CLK_CGC_DIS | AUX_PWR_DET | L23_CLK_RMV_DIS | L1_CLK_RMV_DIS, - pcie->parf + PCIE20_PARF_SYS_CTRL); + pcie->parf + PARF_SYS_CTRL);
- writel(0, pcie->parf + PCIE20_PARF_Q2A_FLUSH); + writel(0, pcie->parf + PARF_Q2A_FLUSH);
dw_pcie_dbi_ro_wr_en(pci); writel(PCIE_CAP_SLOT_VAL, pci->dbi_base + offset + PCI_EXP_SLTCAP); @@ -1399,7 +1397,7 @@ static int qcom_pcie_post_init_2_9_0(struct qcom_pcie *pcie) PCI_EXP_DEVCTL2);
for (i = 0; i < 256; i++) - writel(0, pcie->parf + PCIE20_PARF_BDF_TO_SID_TABLE_N + (4 * i)); + writel(0, pcie->parf + PARF_BDF_TO_SID_TABLE_N + (4 * i));
return 0; } @@ -1421,7 +1419,7 @@ static int qcom_pcie_config_sid_sm8250(struct qcom_pcie *pcie) u32 smmu_sid; u32 smmu_sid_len; } *map; - void __iomem *bdf_to_sid_base = pcie->parf + PCIE20_PARF_BDF_TO_SID_TABLE_N; + void __iomem *bdf_to_sid_base = pcie->parf + PARF_BDF_TO_SID_TABLE_N; struct device *dev = pcie->pci->dev; u8 qcom_pcie_crc8_table[CRC8_TABLE_SIZE]; int i, nr_map, size = 0;