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pcie: bringup TM2 pcie [1/1]

Browse Source 
PD#SWPL-5609

Problem:
bringup TM2 pcie.

Solution:
bringup TM2 pcie,all boards.

Verify:
TM2

Change-Id: I5477eeda03313c660b8162943ca33ff56bfc7e3c
Signed-off-by: Yue Wang <yue.wang@amlogic.com>
This commit is contained in:
Yue Wang
2019-04-08 16:51:25 +08:00
committed by Jianxiong Pan
parent e98ee8e2cf
commit 147d8c7f93
1 changed files with 32 additions and 0 deletions
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32
drivers/amlogic/pci/pcie-amlogic-v2.c
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@@ -221,12 +221,20 @@ static ssize_t store_pcie_cr_read(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct platform_device *pdev = to_platform_device(dev);
struct amlogic_pcie *amlogic_pcie = platform_get_drvdata(pdev);
u32 reg;
u32 val;
int j;
if (kstrtouint(buf, 0, &reg) != 0)
return -EINVAL;
for (j = 0; j < 7; j++)
pcie_aml_regs_v2.pcie_phy_r[j] = (void __iomem *)
((unsigned long)amlogic_pcie->phy->phy_base
+ 4*j);
val = amlogic_phy_cr_readl(reg);
dev_info(dev, "reg 0x%x value is 0x%x\n", reg, val);
@@ -247,11 +255,14 @@ static ssize_t store_pcie_cr_write(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct platform_device *pdev = to_platform_device(dev);
struct amlogic_pcie *amlogic_pcie = platform_get_drvdata(pdev);
unsigned int reg, val;
int ret = 0;
char *pstr;
char *pend;
char *strbuf;
int j;
if (count > 40)
return -EINVAL;
@@ -278,6 +289,12 @@ static ssize_t store_pcie_cr_write(struct device *dev,
ret = -EINVAL;
goto cr_end;
}
for (j = 0; j < 7; j++)
pcie_aml_regs_v2.pcie_phy_r[j] = (void __iomem *)
((unsigned long)amlogic_pcie->phy->phy_base
+ 4*j);
amlogic_phy_cr_writel(val, reg);
ret = count;
cr_end:
@@ -640,6 +657,7 @@ static int __init amlogic_add_pcie_port(struct amlogic_pcie *amlogic_pcie,
struct pcie_port *pp = &amlogic_pcie->pp;
struct device *dev = pp->dev;
int ret;
int j;
if (IS_ENABLED(CONFIG_PCI_MSI)) {
pp->msi_irq = platform_get_irq(pdev, 0);
@@ -674,6 +692,10 @@ static int __init amlogic_add_pcie_port(struct amlogic_pcie *amlogic_pcie,
clk_disable_unprepare(amlogic_pcie->clk);
clk_disable_unprepare(amlogic_pcie->phy_clk);
dev_err(pp->dev, "power down pcie phy\n");
for (j = 0; j < 7; j++)
pcie_aml_regs_v2.pcie_phy_r[j] = (void __iomem *)
((unsigned long)amlogic_pcie->phy->phy_base
+ 4*j);
writel(0x1d, pcie_aml_regs_v2.pcie_phy_r[0]);
amlogic_pcie->phy->power_state = 0;
}
@@ -1068,6 +1090,7 @@ static int amlogic_pcie_suspend_noirq(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct amlogic_pcie *amlogic_pcie = platform_get_drvdata(pdev);
int j;
if (!amlogic_pcie->pm_enable) {
dev_info(dev, "don't noirq suspend amlogic pcie\n");
@@ -1082,6 +1105,10 @@ static int amlogic_pcie_suspend_noirq(struct device *dev)
if (amlogic_pcie->device_attch == 0) {
dev_info(dev, "controller power off, no suspend noirq\n");
if (amlogic_pcie->pcie_num == 1) {
for (j = 0; j < 7; j++)
pcie_aml_regs_v2.pcie_phy_r[j] = (void __iomem *)
((unsigned long)amlogic_pcie->phy->phy_base
+ 4*j);
writel(0x1d, pcie_aml_regs_v2.pcie_phy_r[0]);
amlogic_pcie->phy->power_state = 0;
}
@@ -1108,6 +1135,7 @@ static int amlogic_pcie_resume_noirq(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct amlogic_pcie *amlogic_pcie = platform_get_drvdata(pdev);
unsigned long rate = 100000000;
int j;
if (!amlogic_pcie->pm_enable) {
dev_info(dev, "don't noirq resume amlogic pcie\n");
@@ -1120,6 +1148,10 @@ static int amlogic_pcie_resume_noirq(struct device *dev)
}
if (amlogic_pcie->pcie_num == 1) {
for (j = 0; j < 7; j++)
pcie_aml_regs_v2.pcie_phy_r[j] = (void __iomem *)
((unsigned long)amlogic_pcie->phy->phy_base
+ 4*j);
writel(0x1c, pcie_aml_regs_v2.pcie_phy_r[0]);
amlogic_pcie->phy->power_state = 1;
udelay(500);