[PATCH 1/2] phy: qcom-qmp-pcie: split pcs_misc init cfg for ipq8074 pcs table

[PATCH 1/2] phy: qcom-qmp-pcie: split pcs_misc init cfg for ipq8074 pcs table

[Christian Marangi]

Commit af6643242d3a ("phy: qcom-qmp-pcie: split pcs_misc region for ipq6018
pcie gen3") reworked the pcs regs values and removed the 0x400 offset
for each pcs_misc regs.

This change caused the malfunction of ipq8074 downstream since it still
has the legacy pcs table where pcs_misc are not placed on a different
table and instead put together assuming the offset of 0x400 for the
related pcs_misc regs.

Split pcs_misc init cfg from the ipq8074 pcs init table to be handled
correctly to prepare for actual support for gen3 pcie for ipq8074.

Fixes: af6643242d3a ("phy: qcom-qmp-pcie: split pcs_misc region for ipq6018 pcie gen3")
Reported-by: Robert Marko <robimarko@gmail.com>
Tested-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 7c81667dd968..d699fb4f7436 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -485,6 +485,13 @@ static const struct qmp_phy_init_tbl ipq8074_pcie_gen3_pcs_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_FLL_CNTRL1, 0x01),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_P2U3_WAKEUP_DLY_TIME_AUXCLK_H, 0x0),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_P2U3_WAKEUP_DLY_TIME_AUXCLK_L, 0x1),
+	QMP_PHY_INIT_CFG(QPHY_V4_PCS_G12S1_TXDEEMPH_M3P5DB, 0x10),
+	QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_DCC_CAL_CONFIG, 0x01),
+	QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_SIGDET_LVL, 0xaa),
+	QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x0d),
+};
+
+static const struct qmp_phy_init_tbl ipq8074_pcie_gen3_pcs_misc_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_OSC_DTCT_ACTIONS, 0x0),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_L1P1_WAKEUP_DLY_TIME_AUXCLK_H, 0x00),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_L1P1_WAKEUP_DLY_TIME_AUXCLK_L, 0x01),
@@ -497,11 +504,7 @@ static const struct qmp_phy_init_tbl ipq8074_pcie_gen3_pcs_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_OSC_DTCT_MODE2_CONFIG2, 0x50),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_OSC_DTCT_MODE2_CONFIG4, 0x1a),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_OSC_DTCT_MODE2_CONFIG5, 0x6),
-	QMP_PHY_INIT_CFG(QPHY_V4_PCS_G12S1_TXDEEMPH_M3P5DB, 0x10),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_ENDPOINT_REFCLK_DRIVE, 0xc1),
-	QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_DCC_CAL_CONFIG, 0x01),
-	QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_SIGDET_LVL, 0xaa),
-	QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x0d),
 };
 
 static const struct qmp_phy_init_tbl sdm845_qmp_pcie_serdes_tbl[] = {
@@ -1506,6 +1509,8 @@ static const struct qmp_phy_cfg ipq8074_pciephy_gen3_cfg = {
 		.rx_num		= ARRAY_SIZE(ipq8074_pcie_gen3_rx_tbl),
 		.pcs		= ipq8074_pcie_gen3_pcs_tbl,
 		.pcs_num	= ARRAY_SIZE(ipq8074_pcie_gen3_pcs_tbl),
+		.pcs_misc	= ipq8074_pcie_gen3_pcs_misc_tbl,
+		.pcs_misc_num	= ARRAY_SIZE(ipq8074_pcie_gen3_pcs_misc_tbl),
 	},
 	.clk_list		= ipq8074_pciephy_clk_l,
 	.num_clks		= ARRAY_SIZE(ipq8074_pciephy_clk_l),
-- 
2.37.2

[PATCH 2/2] arm64: dts: qcom: ipq6018: improve pcie phy pcs reg table

[Christian Marangi]

This is not a fix on its own but more a cleanup. Phy qmp pcie driver
currently have a workaround to handle pcs_misc not declared and add
0x400 offset to the pcs reg if pcs_misc is not declared.

Correctly declare pcs_misc reg and reduce PCS size to the common value
of 0x1f0 as done for every other qmp based pcie phy device.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 arch/arm64/boot/dts/qcom/ipq6018.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq6018.dtsi b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
index 9ebb9e2371b1..95d7f49bc61a 100644
--- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
@@ -406,7 +406,8 @@ pcie_phy: phy@84000 {
 			pcie_phy0: phy@84200 {
 				reg = <0x0 0x84200 0x0 0x16c>, /* Serdes Tx */
 				      <0x0 0x84400 0x0 0x200>, /* Serdes Rx */
-				      <0x0 0x84800 0x0 0x4f4>; /* PCS: Lane0, COM, PCIE */
+				      <0x0 0x84800 0x0 0x1f0>; /* PCS: Lane0, COM, PCIE */
+				      <0x0 0x84c00 0x0 0xf4>; /* pcs_misc */
 				#phy-cells = <0>;
 
 				clocks = <&gcc GCC_PCIE0_PIPE_CLK>;
-- 
2.37.2

Re: [PATCH 1/2] phy: qcom-qmp-pcie: split pcs_misc init cfg for ipq8074 pcs table

[Vinod Koul]

On 03-11-22, 22:21, Christian Marangi wrote:
> Commit af6643242d3a ("phy: qcom-qmp-pcie: split pcs_misc region for ipq6018
> pcie gen3") reworked the pcs regs values and removed the 0x400 offset
> for each pcs_misc regs.
> 
> This change caused the malfunction of ipq8074 downstream since it still
> has the legacy pcs table where pcs_misc are not placed on a different
> table and instead put together assuming the offset of 0x400 for the
> related pcs_misc regs.
> 
> Split pcs_misc init cfg from the ipq8074 pcs init table to be handled
> correctly to prepare for actual support for gen3 pcie for ipq8074.

Applied, thanks

-- 
~Vinod

Re: [PATCH 2/2] arm64: dts: qcom: ipq6018: improve pcie phy pcs reg table

[Vinod Koul]

On 03-11-22, 22:21, Christian Marangi wrote:
> This is not a fix on its own but more a cleanup. Phy qmp pcie driver
> currently have a workaround to handle pcs_misc not declared and add
> 0x400 offset to the pcs reg if pcs_misc is not declared.
> 
> Correctly declare pcs_misc reg and reduce PCS size to the common value
> of 0x1f0 as done for every other qmp based pcie phy device.

Reviewed-by: Vinod Koul <vkoul@kernel.org>

-- 
~Vinod

Re: (subset) [PATCH 1/2] phy: qcom-qmp-pcie: split pcs_misc init cfg for ipq8074 pcs table

[Bjorn Andersson]

On Thu, 3 Nov 2022 22:21:24 +0100, Christian Marangi wrote:
> Commit af6643242d3a ("phy: qcom-qmp-pcie: split pcs_misc region for ipq6018
> pcie gen3") reworked the pcs regs values and removed the 0x400 offset
> for each pcs_misc regs.
> 
> This change caused the malfunction of ipq8074 downstream since it still
> has the legacy pcs table where pcs_misc are not placed on a different
> table and instead put together assuming the offset of 0x400 for the
> related pcs_misc regs.
> 
> [...]

Applied, thanks!

[2/2] arm64: dts: qcom: ipq6018: improve pcie phy pcs reg table
      commit: 08f399a818b0eff552b1f23c3171950a58aea78f

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>