Revert "USB host: Move AMD PLL quirk to pci-quirks.c"

This reverts commit b7d5b439b7a40dd0a0202fe1c118615a3fcc3b25.
It conflicts with commit baab93afc2844b68d57b0dcca5e1d34c5d7cf411 "USB:
EHCI: ASPM quirk of ISOC on AMD Hudson" and merging the two just doesn't
work properly.

Cc: Andiry Xu <andiry.xu@amd.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alex He <alex.he@amd.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 65 insertions, 8 deletions

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 1543c838b3d1..30fbdbe1cf1e 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1587,6 +1587,63 @@ itd_link (struct ehci_hcd *ehci, unsigned frame, struct ehci_itd *itd)
 	*hw_p = cpu_to_hc32(ehci, itd->itd_dma | Q_TYPE_ITD);
 }
 
+#define AB_REG_BAR_LOW 0xe0
+#define AB_REG_BAR_HIGH 0xe1
+#define AB_INDX(addr) ((addr) + 0x00)
+#define AB_DATA(addr) ((addr) + 0x04)
+#define NB_PCIE_INDX_ADDR 0xe0
+#define NB_PCIE_INDX_DATA 0xe4
+#define NB_PIF0_PWRDOWN_0 0x01100012
+#define NB_PIF0_PWRDOWN_1 0x01100013
+
+static void ehci_quirk_amd_L1(struct ehci_hcd *ehci, int disable)
+{
+	u32 addr, addr_low, addr_high, val;
+
+	outb_p(AB_REG_BAR_LOW, 0xcd6);
+	addr_low = inb_p(0xcd7);
+	outb_p(AB_REG_BAR_HIGH, 0xcd6);
+	addr_high = inb_p(0xcd7);
+	addr = addr_high << 8 | addr_low;
+	outl_p(0x30, AB_INDX(addr));
+	outl_p(0x40, AB_DATA(addr));
+	outl_p(0x34, AB_INDX(addr));
+	val = inl_p(AB_DATA(addr));
+
+	if (disable) {
+		val &= ~0x8;
+		val |= (1 << 4) | (1 << 9);
+	} else {
+		val |= 0x8;
+		val &= ~((1 << 4) | (1 << 9));
+	}
+	outl_p(val, AB_DATA(addr));
+
+	if (amd_nb_dev) {
+		addr = NB_PIF0_PWRDOWN_0;
+		pci_write_config_dword(amd_nb_dev, NB_PCIE_INDX_ADDR, addr);
+		pci_read_config_dword(amd_nb_dev, NB_PCIE_INDX_DATA, &val);
+		if (disable)
+			val &= ~(0x3f << 7);
+		else
+			val |= 0x3f << 7;
+
+		pci_write_config_dword(amd_nb_dev, NB_PCIE_INDX_DATA, val);
+
+		addr = NB_PIF0_PWRDOWN_1;
+		pci_write_config_dword(amd_nb_dev, NB_PCIE_INDX_ADDR, addr);
+		pci_read_config_dword(amd_nb_dev, NB_PCIE_INDX_DATA, &val);
+		if (disable)
+			val &= ~(0x3f << 7);
+		else
+			val |= 0x3f << 7;
+
+		pci_write_config_dword(amd_nb_dev, NB_PCIE_INDX_DATA, val);
+	}
+
+	return;
+}
+
 /* fit urb's itds into the selected schedule slot; activate as needed */
 static int
 itd_link_urb (
@@ -1615,8 +1672,8 @@ itd_link_urb (
 	}
 
 	if (ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs == 0) {
-		if (ehci->amd_pll_fix == 1)
-			usb_amd_quirk_pll_disable();
+		if (ehci->amd_l1_fix == 1)
+			ehci_quirk_amd_L1(ehci, 1);
 	}
 
 	ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs++;
@@ -1744,8 +1801,8 @@ itd_complete (
 	ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs--;
 
 	if (ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs == 0) {
-		if (ehci->amd_pll_fix == 1)
-			usb_amd_quirk_pll_enable();
+		if (ehci->amd_l1_fix == 1)
+			ehci_quirk_amd_L1(ehci, 0);
 	}
 
 	if (unlikely(list_is_singular(&stream->td_list))) {
@@ -2035,8 +2092,8 @@ sitd_link_urb (
 	}
 
 	if (ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs == 0) {
-		if (ehci->amd_pll_fix == 1)
-			usb_amd_quirk_pll_disable();
+		if (ehci->amd_l1_fix == 1)
+			ehci_quirk_amd_L1(ehci, 1);
 	}
 
 	ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs++;
@@ -2140,8 +2197,8 @@ sitd_complete (
 	ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs--;
 
 	if (ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs == 0) {
-		if (ehci->amd_pll_fix == 1)
-			usb_amd_quirk_pll_enable();
+		if (ehci->amd_l1_fix == 1)
+			ehci_quirk_amd_L1(ehci, 0);
 	}
 
 	if (list_is_singular(&stream->td_list)) {