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authorFelix Fietkau <nbd@openwrt.org>2015-11-21 10:55:29 +0000
committerFelix Fietkau <nbd@openwrt.org>2015-11-21 10:55:29 +0000
commit4018f15e2158c1f621e54eefbde7c9569156a440 (patch)
tree32900ed219f20eb9e29abdd5d5435e6b05344c34 /target/linux
parent155469b1f9682e267150e825a8a99816a2afb312 (diff)
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ipq806x: fix PCIe reset gpio handling - the core already handles the active-low flag
Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 47547
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/ipq806x/patches-3.18/114-pcie-add-ctlr-init.patch38
-rw-r--r--target/linux/ipq806x/patches-4.1/114-pcie-add-ctlr-init.patch38
2 files changed, 60 insertions, 16 deletions
diff --git a/target/linux/ipq806x/patches-3.18/114-pcie-add-ctlr-init.patch b/target/linux/ipq806x/patches-3.18/114-pcie-add-ctlr-init.patch
index dcf6a69eeb..c00abca753 100644
--- a/target/linux/ipq806x/patches-3.18/114-pcie-add-ctlr-init.patch
+++ b/target/linux/ipq806x/patches-3.18/114-pcie-add-ctlr-init.patch
@@ -83,7 +83,29 @@
};
struct qcom_pcie_resources_v1 {
-@@ -156,10 +202,13 @@ static void qcom_pcie_disable_resources_
+@@ -106,20 +152,10 @@ writel_masked(void __iomem *addr, u32 cl
+
+ static void qcom_ep_reset_assert_deassert(struct qcom_pcie *pcie, int assert)
+ {
+- int val, active_low;
+-
+ if (IS_ERR_OR_NULL(pcie->reset))
+ return;
+
+- active_low = gpiod_is_active_low(pcie->reset);
+-
+- if (assert)
+- val = !!active_low;
+- else
+- val = !active_low;
+-
+- gpiod_set_value(pcie->reset, val);
+-
++ gpiod_set_value(pcie->reset, assert);
+ usleep_range(PERST_DELAY_MIN_US, PERST_DELAY_MAX_US);
+ }
+
+@@ -156,10 +192,13 @@ static void qcom_pcie_disable_resources_
reset_control_assert(res->axi_reset);
reset_control_assert(res->ahb_reset);
reset_control_assert(res->por_reset);
@@ -98,7 +120,7 @@
regulator_disable(res->vdda);
regulator_disable(res->vdda_phy);
regulator_disable(res->vdda_refclk);
-@@ -201,6 +250,12 @@ static int qcom_pcie_enable_resources_v0
+@@ -201,6 +240,12 @@ static int qcom_pcie_enable_resources_v0
goto err_vdda_phy;
}
@@ -111,7 +133,7 @@
ret = clk_prepare_enable(res->iface_clk);
if (ret) {
dev_err(dev, "cannot prepare/enable iface clock\n");
-@@ -219,21 +274,40 @@ static int qcom_pcie_enable_resources_v0
+@@ -219,21 +264,40 @@ static int qcom_pcie_enable_resources_v0
goto err_clk_phy;
}
@@ -152,7 +174,7 @@
regulator_disable(res->vdda_phy);
err_vdda_phy:
regulator_disable(res->vdda_refclk);
-@@ -329,6 +403,14 @@ static int qcom_pcie_get_resources_v0(st
+@@ -329,6 +393,14 @@ static int qcom_pcie_get_resources_v0(st
if (IS_ERR(res->phy_clk))
return PTR_ERR(res->phy_clk);
@@ -167,7 +189,7 @@
res->pci_reset = devm_reset_control_get(dev, "pci");
if (IS_ERR(res->pci_reset))
return PTR_ERR(res->pci_reset);
-@@ -349,6 +431,14 @@ static int qcom_pcie_get_resources_v0(st
+@@ -349,6 +421,14 @@ static int qcom_pcie_get_resources_v0(st
if (IS_ERR(res->phy_reset))
return PTR_ERR(res->phy_reset);
@@ -182,7 +204,7 @@
return 0;
}
-@@ -461,6 +551,57 @@ err_res:
+@@ -461,6 +541,57 @@ err_res:
qcom_pcie_disable_resources_v1(pcie);
}
@@ -240,7 +262,7 @@
static void qcom_pcie_host_init_v0(struct pcie_port *pp)
{
struct qcom_pcie *pcie = to_qcom_pcie(pp);
-@@ -470,15 +611,34 @@ static void qcom_pcie_host_init_v0(struc
+@@ -470,15 +601,34 @@ static void qcom_pcie_host_init_v0(struc
qcom_ep_reset_assert(pcie);
@@ -277,7 +299,7 @@
ret = reset_control_deassert(res->phy_reset);
if (ret) {
dev_err(dev, "cannot deassert phy reset\n");
-@@ -517,6 +677,9 @@ static void qcom_pcie_host_init_v0(struc
+@@ -517,6 +667,9 @@ static void qcom_pcie_host_init_v0(struc
if (ret)
goto err;
diff --git a/target/linux/ipq806x/patches-4.1/114-pcie-add-ctlr-init.patch b/target/linux/ipq806x/patches-4.1/114-pcie-add-ctlr-init.patch
index dcf6a69eeb..c00abca753 100644
--- a/target/linux/ipq806x/patches-4.1/114-pcie-add-ctlr-init.patch
+++ b/target/linux/ipq806x/patches-4.1/114-pcie-add-ctlr-init.patch
@@ -83,7 +83,29 @@
};
struct qcom_pcie_resources_v1 {
-@@ -156,10 +202,13 @@ static void qcom_pcie_disable_resources_
+@@ -106,20 +152,10 @@ writel_masked(void __iomem *addr, u32 cl
+
+ static void qcom_ep_reset_assert_deassert(struct qcom_pcie *pcie, int assert)
+ {
+- int val, active_low;
+-
+ if (IS_ERR_OR_NULL(pcie->reset))
+ return;
+
+- active_low = gpiod_is_active_low(pcie->reset);
+-
+- if (assert)
+- val = !!active_low;
+- else
+- val = !active_low;
+-
+- gpiod_set_value(pcie->reset, val);
+-
++ gpiod_set_value(pcie->reset, assert);
+ usleep_range(PERST_DELAY_MIN_US, PERST_DELAY_MAX_US);
+ }
+
+@@ -156,10 +192,13 @@ static void qcom_pcie_disable_resources_
reset_control_assert(res->axi_reset);
reset_control_assert(res->ahb_reset);
reset_control_assert(res->por_reset);
@@ -98,7 +120,7 @@
regulator_disable(res->vdda);
regulator_disable(res->vdda_phy);
regulator_disable(res->vdda_refclk);
-@@ -201,6 +250,12 @@ static int qcom_pcie_enable_resources_v0
+@@ -201,6 +240,12 @@ static int qcom_pcie_enable_resources_v0
goto err_vdda_phy;
}
@@ -111,7 +133,7 @@
ret = clk_prepare_enable(res->iface_clk);
if (ret) {
dev_err(dev, "cannot prepare/enable iface clock\n");
-@@ -219,21 +274,40 @@ static int qcom_pcie_enable_resources_v0
+@@ -219,21 +264,40 @@ static int qcom_pcie_enable_resources_v0
goto err_clk_phy;
}
@@ -152,7 +174,7 @@
regulator_disable(res->vdda_phy);
err_vdda_phy:
regulator_disable(res->vdda_refclk);
-@@ -329,6 +403,14 @@ static int qcom_pcie_get_resources_v0(st
+@@ -329,6 +393,14 @@ static int qcom_pcie_get_resources_v0(st
if (IS_ERR(res->phy_clk))
return PTR_ERR(res->phy_clk);
@@ -167,7 +189,7 @@
res->pci_reset = devm_reset_control_get(dev, "pci");
if (IS_ERR(res->pci_reset))
return PTR_ERR(res->pci_reset);
-@@ -349,6 +431,14 @@ static int qcom_pcie_get_resources_v0(st
+@@ -349,6 +421,14 @@ static int qcom_pcie_get_resources_v0(st
if (IS_ERR(res->phy_reset))
return PTR_ERR(res->phy_reset);
@@ -182,7 +204,7 @@
return 0;
}
-@@ -461,6 +551,57 @@ err_res:
+@@ -461,6 +541,57 @@ err_res:
qcom_pcie_disable_resources_v1(pcie);
}
@@ -240,7 +262,7 @@
static void qcom_pcie_host_init_v0(struct pcie_port *pp)
{
struct qcom_pcie *pcie = to_qcom_pcie(pp);
-@@ -470,15 +611,34 @@ static void qcom_pcie_host_init_v0(struc
+@@ -470,15 +601,34 @@ static void qcom_pcie_host_init_v0(struc
qcom_ep_reset_assert(pcie);
@@ -277,7 +299,7 @@
ret = reset_control_deassert(res->phy_reset);
if (ret) {
dev_err(dev, "cannot deassert phy reset\n");
-@@ -517,6 +677,9 @@ static void qcom_pcie_host_init_v0(struc
+@@ -517,6 +667,9 @@ static void qcom_pcie_host_init_v0(struc
if (ret)
goto err;