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Fri, 24 Feb 2023 03:00:11 -0800 (PST) Received: from localhost.localdomain ([117.217.187.3]) by smtp.gmail.com with ESMTPSA id gd5-20020a17090b0fc500b00233cde36909sm1263853pjb.21.2023.02.24.03.00.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Feb 2023 03:00:11 -0800 (PST) From: Manivannan Sadhasivam To: andersson@kernel.org, lpieralisi@kernel.org, robh@kernel.org, kw@linux.com, krzysztof.kozlowski+dt@linaro.org, vkoul@kernel.org Cc: konrad.dybcio@linaro.org, bhelgaas@google.com, kishon@kernel.org, linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH v2 12/13] phy: qcom-qmp-pcie: Add RC init sequence for SDX55 Date: Fri, 24 Feb 2023 16:29:05 +0530 Message-Id: <20230224105906.16540-13-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230224105906.16540-1-manivannan.sadhasivam@linaro.org> References: <20230224105906.16540-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230224_030012_996553_1B0DEF7B X-CRM114-Status: GOOD ( 10.89 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org Add PCIe RC init sequence making use of the common init sequence. The RC mode additionally requires REFCLK_DRV_DSBL bit to set during powerup and powerdown. Signed-off-by: Manivannan Sadhasivam --- drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 49 ++++++++++++++++++- .../qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h | 2 + 2 files changed, 50 insertions(+), 1 deletion(-) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c index f526f73f76ef..9d92facd47a6 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c @@ -1138,6 +1138,41 @@ static const struct qmp_phy_init_tbl sdx55_qmp_pcie_serdes_tbl[] = { QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_HSCLK_SEL, 0x22), }; +static const struct qmp_phy_init_tbl sdx55_qmp_pcie_rc_serdes_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_EN_CENTER, 0x01), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_PER1, 0x31), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_PER2, 0x01), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE1_MODE0, 0xce), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE2_MODE0, 0x0b), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE1_MODE1, 0x97), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SSC_STEP_SIZE2_MODE1, 0x0c), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_ENABLE1, 0x90), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_EP_DIV_MODE0, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_EP_DIV_MODE1, 0x10), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE0, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE1, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE0, 0x16), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE1, 0x16), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE0, 0x36), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE1, 0x36), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_EN_SEL, 0x08), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x0d), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE1, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE1, 0x1a), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0xc3), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE1, 0xd0), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START1_MODE1, 0x55), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE1, 0x55), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE1, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_SELECT, 0x34), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE0, 0xca), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE0, 0x1e), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE1, 0xd8), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE1, 0x20), +}; + static const struct qmp_phy_init_tbl sdx55_qmp_pcie_ep_serdes_tbl[] = { QMP_PHY_INIT_CFG(QSERDES_V4_COM_BG_TIMER, 0x02), QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYS_CLK_CTRL, 0x07), @@ -1217,6 +1252,11 @@ static const struct qmp_phy_init_tbl sdx55_qmp_pcie_pcs_misc_tbl[] = { QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_PCIE_G4_EQ_CONFIG5, 0x02), }; +static const struct qmp_phy_init_tbl sdx55_qmp_pcie_rc_pcs_misc_tbl[] = { + QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_PCIE_ENDPOINT_REFCLK_DRIVE, 0xc1), + QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_PCIE_OSC_DTCT_ACTIONS, 0x00), +}; + static const struct qmp_phy_init_tbl sdx55_qmp_pcie_ep_pcs_misc_tbl[] = { QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_LANE1_INSIG_SW_CTRL2, 0x00), QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_LANE1_INSIG_MX_CTRL2, 0x00), @@ -2010,6 +2050,13 @@ static const struct qmp_phy_cfg sdx55_qmp_pciephy_cfg = { .pcs_misc_num = ARRAY_SIZE(sdx55_qmp_pcie_pcs_misc_tbl), }, + .tbls_rc = &(const struct qmp_phy_cfg_tbls) { + .serdes = sdx55_qmp_pcie_rc_serdes_tbl, + .serdes_num = ARRAY_SIZE(sdx55_qmp_pcie_rc_serdes_tbl), + .pcs_misc = sdx55_qmp_pcie_rc_pcs_misc_tbl, + .pcs_misc_num = ARRAY_SIZE(sdx55_qmp_pcie_rc_pcs_misc_tbl), + }, + .tbls_ep = &(const struct qmp_phy_cfg_tbls) { .serdes = sdx55_qmp_pcie_ep_serdes_tbl, .serdes_num = ARRAY_SIZE(sdx55_qmp_pcie_ep_serdes_tbl), @@ -2025,7 +2072,7 @@ static const struct qmp_phy_cfg sdx55_qmp_pciephy_cfg = { .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l), .regs = sm8250_pcie_regs_layout, - .pwrdn_ctrl = SW_PWRDN, + .pwrdn_ctrl = SW_PWRDN | REFCLK_DRV_DSBL, .phy_status = PHYSTATUS_4_20, }; diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h index af273602998e..ac872a9eff9a 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h @@ -6,6 +6,8 @@ #ifndef QCOM_PHY_QMP_PCS_PCIE_V4_20_H_ #define QCOM_PHY_QMP_PCS_PCIE_V4_20_H_ +#define QPHY_V4_20_PCS_PCIE_ENDPOINT_REFCLK_DRIVE 0x01c +#define QPHY_V4_20_PCS_PCIE_OSC_DTCT_ACTIONS 0x090 #define QPHY_V4_20_PCS_PCIE_EQ_CONFIG1 0x0a0 #define QPHY_V4_20_PCS_PCIE_G3_RXEQEVAL_TIME 0x0f0 #define QPHY_V4_20_PCS_PCIE_G4_RXEQEVAL_TIME 0x0f4