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path: root/arch/powerpc/cpu/mpc85xx/cpu_init.c
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Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/cpu_init.c')
-rw-r--r--arch/powerpc/cpu/mpc85xx/cpu_init.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c
index b31efb7610..81aeadd363 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c
@@ -36,6 +36,54 @@
DECLARE_GLOBAL_DATA_PTR;
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006261
+void fsl_erratum_a006261_workaround(struct ccsr_usb_phy __iomem *usb_phy)
+{
+#ifdef CONFIG_SYS_FSL_USB_DUAL_PHY_ENABLE
+ u32 xcvrprg = in_be32(&usb_phy->port1.xcvrprg);
+
+ /* Increase Disconnect Threshold by 50mV */
+ xcvrprg &= ~CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_MASK |
+ INC_DCNT_THRESHOLD_50MV;
+ /* Enable programming of USB High speed Disconnect threshold */
+ xcvrprg |= CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_EN;
+ out_be32(&usb_phy->port1.xcvrprg, xcvrprg);
+
+ xcvrprg = in_be32(&usb_phy->port2.xcvrprg);
+ /* Increase Disconnect Threshold by 50mV */
+ xcvrprg &= ~CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_MASK |
+ INC_DCNT_THRESHOLD_50MV;
+ /* Enable programming of USB High speed Disconnect threshold */
+ xcvrprg |= CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_EN;
+ out_be32(&usb_phy->port2.xcvrprg, xcvrprg);
+#else
+
+ u32 temp = 0;
+ u32 status = in_be32(&usb_phy->status1);
+
+ u32 squelch_prog_rd_0_2 =
+ (status >> CONFIG_SYS_FSL_USB_SQUELCH_PROG_RD_0)
+ & CONFIG_SYS_FSL_USB_SQUELCH_PROG_MASK;
+
+ u32 squelch_prog_rd_3_5 =
+ (status >> CONFIG_SYS_FSL_USB_SQUELCH_PROG_RD_3)
+ & CONFIG_SYS_FSL_USB_SQUELCH_PROG_MASK;
+
+ setbits_be32(&usb_phy->config1,
+ CONFIG_SYS_FSL_USB_HS_DISCNCT_INC);
+ setbits_be32(&usb_phy->config2,
+ CONFIG_SYS_FSL_USB_RX_AUTO_CAL_RD_WR_SEL);
+
+ temp = squelch_prog_rd_0_2 << CONFIG_SYS_FSL_USB_SQUELCH_PROG_WR_0;
+ out_be32(&usb_phy->config2, in_be32(&usb_phy->config2) | temp);
+
+ temp = squelch_prog_rd_3_5 << CONFIG_SYS_FSL_USB_SQUELCH_PROG_WR_3;
+ out_be32(&usb_phy->config2, in_be32(&usb_phy->config2) | temp);
+#endif
+}
+#endif
+
+
#ifdef CONFIG_QE
extern qe_iop_conf_t qe_iop_conf_tab[];
extern void qe_config_iopin(u8 port, u8 pin, int dir,
@@ -625,6 +673,10 @@ skip_l2:
{
struct ccsr_usb_phy __iomem *usb_phy1 =
(void *)CONFIG_SYS_MPC85xx_USB1_PHY_ADDR;
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006261
+ if (has_erratum_a006261())
+ fsl_erratum_a006261_workaround(usb_phy1);
+#endif
out_be32(&usb_phy1->usb_enable_override,
CONFIG_SYS_FSL_USB_ENABLE_OVERRIDE);
}
@@ -633,6 +685,10 @@ skip_l2:
{
struct ccsr_usb_phy __iomem *usb_phy2 =
(void *)CONFIG_SYS_MPC85xx_USB2_PHY_ADDR;
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006261
+ if (has_erratum_a006261())
+ fsl_erratum_a006261_workaround(usb_phy2);
+#endif
out_be32(&usb_phy2->usb_enable_override,
CONFIG_SYS_FSL_USB_ENABLE_OVERRIDE);
}
@@ -672,8 +728,14 @@ skip_l2:
CONFIG_SYS_FSL_USB_DRVVBUS_CR_EN);
setbits_be32(&usb_phy->port2.pwrfltcfg,
CONFIG_SYS_FSL_USB_PWRFLT_CR_EN);
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006261
+ if (has_erratum_a006261())
+ fsl_erratum_a006261_workaround(usb_phy);
#endif
+#endif /* CONFIG_SYS_FSL_USB_DUAL_PHY_ENABLE */
+
#ifdef CONFIG_FMAN_ENET
fman_enet_init();
#endif