sb/intel/lynxpoint: Add native USB init
Implement native USB initialisation for Lynx Point. This is only needed
when MRC.bin is not used.
TO DO: Figure out how to deal with the FIXME's and TODO's lying around.
Change-Id: Ie0fbeeca7b1ca1557173772d733fd2fa27703373
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64179
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/southbridge/intel/lynxpoint/pch.h b/src/southbridge/intel/lynxpoint/pch.h
index f833706..d8fcf52 100644
--- a/src/southbridge/intel/lynxpoint/pch.h
+++ b/src/southbridge/intel/lynxpoint/pch.h
@@ -114,6 +114,7 @@
void pch_dmi_setup_physical_layer(void);
void pch_dmi_tc_vc_mapping(u32 vc0, u32 vc1, u32 vcp, u32 vcm);
+void early_usb_init(void);
void usb_ehci_sleep_prepare(pci_devfn_t dev, u8 slp_typ);
void usb_ehci_disable(pci_devfn_t dev);
@@ -201,6 +202,8 @@
#define GEN_PMCON_1 0xa0
#define SMI_LOCK (1 << 4)
#define GEN_PMCON_2 0xa2
+#define GEN_PMCON_2_DISB (1 << 7)
+#define GEN_PMCON_2_MEM_SR (1 << 5)
#define SYSTEM_RESET_STS (1 << 4)
#define THERMTRIP_STS (1 << 3)
#define SYSPWR_FLR (1 << 1)
@@ -214,6 +217,7 @@
#define PMIR 0xac
#define PMIR_CF9LOCK (1 << 31)
#define PMIR_CF9GR (1 << 20)
+#define PMIR_XHCI_SMART_AUTO (1 << 16) /* c.f. LPT BWG or WPT-LP BIOS spec */
/* GEN_PMCON_3 bits */
#define RTC_BATTERY_DEAD (1 << 2)
@@ -281,6 +285,20 @@
#define SATA_DTLE_DATA_SHIFT 24
#define SATA_DTLE_EDGE_SHIFT 16
+/*
+ * HCD_INDEX == 2 selects 0:1a.0 (PCH_EHCI2), any other index
+ * selects 0:1d.0 (PCH_EHCI1) for usbdebug use.
+ */
+#if CONFIG_USBDEBUG_HCD_INDEX != 2
+#define PCH_EHCI1_TEMP_BAR0 CONFIG_EHCI_BAR
+#define PCH_EHCI2_TEMP_BAR0 (PCH_EHCI1_TEMP_BAR0 + 0x400)
+#else
+#define PCH_EHCI2_TEMP_BAR0 CONFIG_EHCI_BAR
+#define PCH_EHCI1_TEMP_BAR0 (PCH_EHCI2_TEMP_BAR0 + 0x400)
+#endif
+
+#define PCH_XHCI_TEMP_BAR0 0xe8100000
+
/* EHCI PCI Registers */
#define EHCI_PWR_CTL_STS 0x54
#define PWR_CTL_SET_MASK 0x3
@@ -288,10 +306,15 @@
#define PWR_CTL_SET_D3 0x3
#define PWR_CTL_ENABLE_PME (1 << 8)
#define PWR_CTL_STATUS_PME (1 << 15)
+#define EHCI_OCMAP 0x74
+#define EHCI_ACCESS_CNTL 0x80
+#define ACCESS_CNTL_ENABLE (1 << 0)
/* EHCI Memory Registers */
+#define EHCI_HCS_PARAMS 0x04
#define EHCI_USB_CMD 0x20
#define EHCI_USB_CMD_RUN (1 << 0)
+#define EHCI_USB_CMD_HCRESET (1 << 1)
#define EHCI_USB_CMD_PSE (1 << 4)
#define EHCI_USB_CMD_ASE (1 << 5)
#define EHCI_PORTSC(port) (0x64 + (port) * 4)
@@ -300,6 +323,10 @@
/* XHCI PCI Registers */
#define XHCI_PWR_CTL_STS 0x74
+#define XHCI_U2OCM1 0xc0
+#define XHCI_U2OCM2 0xc4
+#define XHCI_U3OCM1 0xc8
+#define XHCI_U3OCM2 0xcc
#define XHCI_USB2PR 0xd0
#define XHCI_USB2PRM 0xd4
#define XHCI_USB2PR_HCSEL 0x7fff
@@ -312,6 +339,27 @@
#define XHCI_USB3PDO 0xe8
/* XHCI Memory Registers */
+#define XHCI_HCS_PARAMS_1 0x04
+#define XHCI_HCS_PARAMS_2 0x08
+#define XHCI_HCS_PARAMS_3 0x0c
+#define XHCI_HCC_PARAMS 0x10
+#define XHCI_USBCMD 0x80
+#define XHCI_USB2_PORTSC(port) (0x480 + ((port) * 0x10))
+#define XHCI_USB2_PORTSC_WPR (1 << 31) /* Warm Port Reset */
+#define XHCI_USB2_PORTSC_CEC (1 << 23) /* Port Config Error Change */
+#define XHCI_USB2_PORTSC_PLC (1 << 22) /* Port Link State Change */
+#define XHCI_USB2_PORTSC_PRC (1 << 21) /* Port Reset Change */
+#define XHCI_USB2_PORTSC_OCC (1 << 20) /* Over-current Change */
+#define XHCI_USB2_PORTSC_WRC (1 << 19) /* Warm Port Reset Change */
+#define XHCI_USB2_PORTSC_PEC (1 << 18) /* Port Enabled Disabled Change */
+#define XHCI_USB2_PORTSC_CSC (1 << 17) /* Connect Status Change */
+#define XHCI_USB2_PORTSC_CHST (0x7f << 17)
+#define XHCI_USB2_PORTSC_LWS (1 << 16) /* Port Link State Write Strobe */
+#define XHCI_USB2_PORTSC_PP (1 << 9)
+#define XHCI_USB2_PORTSC_PR (1 << 4) /* Port Reset */
+#define XHCI_USB2_PORTSC_PED (1 << 1) /* Port Enable/Disabled */
+#define XHCI_USB2_PORTSC_CCS (1 << 0) /* Current Connect Status */
+
#define XHCI_USB3_PORTSC(port) ((pch_is_lp() ? 0x510 : 0x570) + ((port) * 0x10))
#define XHCI_USB3_PORTSC_CHST (0x7f << 17)
#define XHCI_USB3_PORTSC_WCE (1 << 25) /* Wake on Connect */
@@ -319,6 +367,7 @@
#define XHCI_USB3_PORTSC_WOE (1 << 27) /* Wake on Overcurrent */
#define XHCI_USB3_PORTSC_WRC (1 << 19) /* Warm Reset Complete */
#define XHCI_USB3_PORTSC_LWS (1 << 16) /* Link Write Strobe */
+#define XHCI_USB3_PORTSC_PR (1 << 4) /* Port Reset */
#define XHCI_USB3_PORTSC_PED (1 << 1) /* Port Enabled/Disabled */
#define XHCI_USB3_PORTSC_WPR (1 << 31) /* Warm Port Reset */
#define XHCI_USB3_PORTSC_PLS (0xf << 5) /* Port Link State */