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-rw-r--r--target/linux/ramips/files-4.14/arch/mips/pci/pci-mt7621.c66
1 files changed, 58 insertions, 8 deletions
diff --git a/target/linux/ramips/files-4.14/arch/mips/pci/pci-mt7621.c b/target/linux/ramips/files-4.14/arch/mips/pci/pci-mt7621.c
index 2d4cc65ccf..80f9cc2080 100644
--- a/target/linux/ramips/files-4.14/arch/mips/pci/pci-mt7621.c
+++ b/target/linux/ramips/files-4.14/arch/mips/pci/pci-mt7621.c
@@ -65,6 +65,9 @@ extern void chk_phy_pll(void);
* devices.
*/
+#define CONFIG_PCIE_PORT0
+#define CONFIG_PCIE_PORT1
+#define CONFIG_PCIE_PORT2
#define RALINK_PCIE0_CLK_EN (1<<24)
#define RALINK_PCIE1_CLK_EN (1<<25)
#define RALINK_PCIE2_CLK_EN (1<<26)
@@ -141,7 +144,7 @@ extern void chk_phy_pll(void);
#define RALINK_PCI_IO_MAP_BASE 0x1e160000
#define RALINK_SYSTEM_CONTROL_BASE 0xbe000000
-
+#define GPIO_PERST
#define ASSERT_SYSRST_PCIE(val) do { \
if (*(unsigned int *)(0xbe00000c) == 0x00030101) \
RALINK_RSTCTRL |= val; \
@@ -394,15 +397,21 @@ set_pcie_phy(u32 *addr, int start_b, int bits, int val)
void
bypass_pipe_rst(void)
{
+#if defined (CONFIG_PCIE_PORT0)
/* PCIe Port 0 */
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x02c), 12, 1, 0x01); // rg_pe1_pipe_rst_b
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x02c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4]
+#endif
+#if defined (CONFIG_PCIE_PORT1)
/* PCIe Port 1 */
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x12c), 12, 1, 0x01); // rg_pe1_pipe_rst_b
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x12c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4]
+#endif
+#if defined (CONFIG_PCIE_PORT2)
/* PCIe Port 2 */
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x02c), 12, 1, 0x01); // rg_pe1_pipe_rst_b
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x02c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4]
+#endif
}
void
@@ -411,6 +420,7 @@ set_phy_for_ssc(void)
unsigned long reg = (*(volatile u32 *)(RALINK_SYSCTL_BASE + 0x10));
reg = (reg >> 6) & 0x7;
+#if defined (CONFIG_PCIE_PORT0) || defined (CONFIG_PCIE_PORT1)
/* Set PCIe Port0 & Port1 PHY to disable SSC */
/* Debug Xtal Type */
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x400), 8, 1, 0x01); // rg_pe1_frc_h_xtal_type
@@ -451,7 +461,8 @@ set_phy_for_ssc(void)
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 5, 1, 0x01); // rg_pe1_phy_en //Port 1 enable
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 0 disable control
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 1 disable control
-
+#endif
+#if defined (CONFIG_PCIE_PORT2)
/* Set PCIe Port2 PHY to disable SSC */
/* Debug Xtal Type */
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x400), 8, 1, 0x01); // rg_pe1_frc_h_xtal_type
@@ -484,6 +495,7 @@ set_phy_for_ssc(void)
/* Enable PHY and disable force mode */
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 5, 1, 0x01); // rg_pe1_phy_en //Port 0 enable
set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 0 disable control
+#endif
}
void setup_cm_memory_region(struct resource *mem_resource)
@@ -516,13 +528,18 @@ static int mt7621_pci_probe(struct platform_device *pdev)
ioport_resource.start= 0;
ioport_resource.end = ~0;
+#if defined (CONFIG_PCIE_PORT0)
val = RALINK_PCIE0_RST;
+#endif
+#if defined (CONFIG_PCIE_PORT1)
val |= RALINK_PCIE1_RST;
+#endif
+#if defined (CONFIG_PCIE_PORT2)
val |= RALINK_PCIE2_RST;
-
+#endif
ASSERT_SYSRST_PCIE(RALINK_PCIE0_RST | RALINK_PCIE1_RST | RALINK_PCIE2_RST);
printk("pull PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL);
-
+#if defined GPIO_PERST /* add GPIO control instead of PERST_N */ /*chhung*/
*(unsigned int *)(0xbe000060) &= ~(0x3<<10 | 0x3<<3);
*(unsigned int *)(0xbe000060) |= 0x1<<10 | 0x1<<3;
mdelay(100);
@@ -531,11 +548,18 @@ static int mt7621_pci_probe(struct platform_device *pdev)
*(unsigned int *)(0xbe000620) &= ~(0x1<<19 | 0x1<<8 | 0x1<<7); // clear DATA
mdelay(100);
-
+#else
+ *(unsigned int *)(0xbe000060) &= ~0x00000c00;
+#endif
+#if defined (CONFIG_PCIE_PORT0)
val = RALINK_PCIE0_RST;
+#endif
+#if defined (CONFIG_PCIE_PORT1)
val |= RALINK_PCIE1_RST;
+#endif
+#if defined (CONFIG_PCIE_PORT2)
val |= RALINK_PCIE2_RST;
-
+#endif
DEASSERT_SYSRST_PCIE(val);
printk("release PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL);
@@ -544,12 +568,18 @@ static int mt7621_pci_probe(struct platform_device *pdev)
set_phy_for_ssc();
printk("release PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL);
+#if defined (CONFIG_PCIE_PORT0)
read_config(0, 0, 0, 0x70c, &val);
printk("Port 0 N_FTS = %x\n", (unsigned int)val);
+#endif
+#if defined (CONFIG_PCIE_PORT1)
read_config(0, 1, 0, 0x70c, &val);
printk("Port 1 N_FTS = %x\n", (unsigned int)val);
+#endif
+#if defined (CONFIG_PCIE_PORT2)
read_config(0, 2, 0, 0x70c, &val);
printk("Port 2 N_FTS = %x\n", (unsigned int)val);
+#endif
RALINK_RSTCTRL = (RALINK_RSTCTRL | RALINK_PCIE_RST);
RALINK_SYSCFG1 &= ~(0x30);
@@ -560,11 +590,19 @@ static int mt7621_pci_probe(struct platform_device *pdev)
RALINK_PCIE_CLK_GEN |= 0x80000000;
mdelay(50);
RALINK_RSTCTRL = (RALINK_RSTCTRL & ~RALINK_PCIE_RST);
+
- /* Use GPIO control instead of PERST_N */
+#if defined GPIO_PERST /* add GPIO control instead of PERST_N */ /*chhung*/
*(unsigned int *)(0xbe000620) |= 0x1<<19 | 0x1<<8 | 0x1<<7; // set DATA
- mdelay(1000);
+ mdelay(100);
+#else
+ RALINK_PCI_PCICFG_ADDR &= ~(1<<1); //de-assert PERST
+#endif
+ mdelay(500);
+
+ mdelay(500);
+#if defined (CONFIG_PCIE_PORT0)
if(( RALINK_PCI0_STATUS & 0x1) == 0)
{
printk("PCIE0 no card, disable it(RST&CLK)\n");
@@ -575,6 +613,8 @@ static int mt7621_pci_probe(struct platform_device *pdev)
pcie_link_status |= 1<<0;
RALINK_PCI_PCIMSK_ADDR |= (1<<20); // enable pcie1 interrupt
}
+#endif
+#if defined (CONFIG_PCIE_PORT1)
if(( RALINK_PCI1_STATUS & 0x1) == 0)
{
printk("PCIE1 no card, disable it(RST&CLK)\n");
@@ -585,6 +625,8 @@ static int mt7621_pci_probe(struct platform_device *pdev)
pcie_link_status |= 1<<1;
RALINK_PCI_PCIMSK_ADDR |= (1<<21); // enable pcie1 interrupt
}
+#endif
+#if defined (CONFIG_PCIE_PORT2)
if (( RALINK_PCI2_STATUS & 0x1) == 0) {
printk("PCIE2 no card, disable it(RST&CLK)\n");
ASSERT_SYSRST_PCIE(RALINK_PCIE2_RST);
@@ -594,6 +636,7 @@ static int mt7621_pci_probe(struct platform_device *pdev)
pcie_link_status |= 1<<2;
RALINK_PCI_PCIMSK_ADDR |= (1<<22); // enable pcie2 interrupt
}
+#endif
if (pcie_link_status == 0)
return 0;
@@ -644,6 +687,7 @@ pcie(2/1/0) link status pcie2_num pcie1_num pcie0_num
RALINK_PCI_MEMBASE = 0xffffffff; //RALINK_PCI_MM_MAP_BASE;
RALINK_PCI_IOBASE = RALINK_PCI_IO_MAP_BASE;
+#if defined (CONFIG_PCIE_PORT0)
//PCIe0
if((pcie_link_status & 0x1) != 0) {
RALINK_PCI0_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE
@@ -651,6 +695,8 @@ pcie(2/1/0) link status pcie2_num pcie1_num pcie0_num
RALINK_PCI0_CLASS = 0x06040001;
printk("PCIE0 enabled\n");
}
+#endif
+#if defined (CONFIG_PCIE_PORT1)
//PCIe1
if ((pcie_link_status & 0x2) != 0) {
RALINK_PCI1_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE
@@ -658,6 +704,8 @@ pcie(2/1/0) link status pcie2_num pcie1_num pcie0_num
RALINK_PCI1_CLASS = 0x06040001;
printk("PCIE1 enabled\n");
}
+#endif
+#if defined (CONFIG_PCIE_PORT2)
//PCIe2
if ((pcie_link_status & 0x4) != 0) {
RALINK_PCI2_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE
@@ -665,6 +713,8 @@ pcie(2/1/0) link status pcie2_num pcie1_num pcie0_num
RALINK_PCI2_CLASS = 0x06040001;
printk("PCIE2 enabled\n");
}
+#endif
+
switch(pcie_link_status) {
case 7:
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 14:35:53 +0000