[U-Boot] [PATCH 2/2] armv8: ls1028a: enable workaround for errarum A-009007

Ran Wang
2019-05-13T08:42:05Z

From: Yinbo Zhu <yinbo.zhu@nxp.com>

This patch is to make usb erratum A-009007 applies to ls1028a

Rx Compliance tests may fail intermittently at high jitter
frequencies using default register values.

Program register USB_PHY_RX_OVRD_IN_HI in certain sequence
to make the Rx compliance test pass.

Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
---
Depends:
http://patchwork.ozlabs.org/patch/1083257/
http://patchwork.ozlabs.org/patch/1083258/
http://patchwork.ozlabs.org/patch/1083259/

arch/arm/cpu/armv8/fsl-layerscape/soc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
index f2392f0ebf..af2d86bb9d 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
@@ -143,7 +143,8 @@ static void erratum_a008997(void)
out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_3); \
out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_4)

-#elif defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A)
+#elif defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A) || \
+ defined(CONFIG_ARCH_LS1028A)

#define PROGRAM_USB_PHY_RX_OVRD_IN_HI(phy) \
out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_1); \
@@ -167,7 +168,8 @@ static void erratum_a009007(void)
usb_phy = (void __iomem *)SCFG_USB_PHY3;
PROGRAM_USB_PHY_RX_OVRD_IN_HI(usb_phy);
#endif
-#elif defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A)
+#elif defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A) || \
+ defined(CONFIG_ARCH_LS1028A)
void __iomem *dcsr = (void __iomem *)DCSR_BASE;

PROGRAM_USB_PHY_RX_OVRD_IN_HI(dcsr + DCSR_USB_PHY1);
--
2.17.1