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From: yinbo.zhu <yinbo.zhu@nxp.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 7/8] armv8: Add workaround for USB erratum A-009007
Date: Thu, 4 May 2017 12:53:21 +0800	[thread overview]
Message-ID: <1493873602-13488-7-git-send-email-yinbo.zhu@nxp.com> (raw)
In-Reply-To: <1493873602-13488-1-git-send-email-yinbo.zhu@nxp.com>

From: Suresh Gupta <suresh.gupta@freescale.com>

USB3PHY Observing Intermittent Failure in Rx
This patch is adding the erratum for LS1043 and LS2080 SoCs.

Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Signed-off-by: yinbo.zhu <yinbo.zhu@nxp.com>
---
 arch/arm/cpu/armv8/fsl-layerscape/soc.c            | 43 ++++++++++++++++++++++
 arch/arm/include/asm/arch-fsl-layerscape/config.h  |  5 +++
 .../include/asm/arch-fsl-layerscape/immap_lsch2.h  | 12 ++++++
 .../include/asm/arch-fsl-layerscape/immap_lsch3.h  |  7 ++++
 4 files changed, 67 insertions(+)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
index c42d778..4e9c718 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
@@ -74,6 +74,47 @@ static void erratum_a008997(void)
 #endif /* CONFIG_SYS_FSL_ERRATUM_A008997 */
 }
 
+static void erratum_a009007(void)
+{
+/* TODO:implement the out_be16 instead of writew which is taking
+little endian style */
+#if defined(CONFIG_LS1043A) || defined(CONFIG_LS1046A)
+	u32 __iomem *usb_phy = (u32 __iomem *)USB_PHY1;
+	writew(USB_PHY_RX_EQ_VAL_1, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_2, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_3, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_4, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	usb_phy = (u32 __iomem *)USB_PHY2;
+	writew(USB_PHY_RX_EQ_VAL_1, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_2, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_3, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_4, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	usb_phy = (u32 __iomem *)USB_PHY3;
+	writew(USB_PHY_RX_EQ_VAL_1, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_2, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_3, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_4, (u8 *)(usb_phy) + USB_PHY_RX_OVRD_IN_HI);
+#elif defined(CONFIG_LS2080A) || defined(CONFIG_LS2085A)
+	u32 __iomem *dcsr = (u32 __iomem *)DCSR_BASE;
+	writew(USB_PHY_RX_EQ_VAL_1,
+	       (u8 *)(dcsr) + DCSR_USB_PHY1 + DCSR_USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_2,
+	       (u8 *)(dcsr) + DCSR_USB_PHY1 + DCSR_USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_3,
+	       (u8 *)(dcsr) + DCSR_USB_PHY1 + DCSR_USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_4,
+	       (u8 *)(dcsr) + DCSR_USB_PHY1 + DCSR_USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_1,
+	       (u8 *)(dcsr) + DCSR_USB_PHY2 + DCSR_USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_2,
+	       (u8 *)(dcsr) + DCSR_USB_PHY2 + DCSR_USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_3,
+	       (u8 *)(dcsr) + DCSR_USB_PHY2 + DCSR_USB_PHY_RX_OVRD_IN_HI);
+	writew(USB_PHY_RX_EQ_VAL_4,
+	       (u8 *)(dcsr) + DCSR_USB_PHY2 + DCSR_USB_PHY_RX_OVRD_IN_HI);
+#endif /* CONFIG_SYS_FSL_ERRATUM_A009007 */
+}
+
 bool soc_has_dp_ddr(void)
 {
 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
@@ -249,6 +290,7 @@ void fsl_lsch3_early_init_f(void)
 	erratum_a009008();
 	erratum_a009798();
 	erratum_a008997();
+	erratum_a009007();
 #ifdef CONFIG_CHAIN_OF_TRUST
 	/* In case of Secure Boot, the IBR configures the SMMU
 	* to allow only Secure transactions.
@@ -522,6 +564,7 @@ void fsl_lsch2_early_init_f(void)
 	erratum_a010539();
 	erratum_a009798();
 	erratum_a008997();
+	erratum_a009007();
 }
 #endif
 
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/config.h b/arch/arm/include/asm/arch-fsl-layerscape/config.h
index e66253f..7d263fa 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/config.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/config.h
@@ -114,6 +114,11 @@
 
 #define CONFIG_SYS_FSL_ERRATUM_A008751
 #define CONFIG_SYS_FSL_ERRATUM_A009798
+#define CONFIG_SYS_FSL_ERRATUM_A008997
+#define CONFIG_SYS_FSL_ERRATUM_A009007
+#define CONFIG_SYS_FSL_ERRATUM_A010165
+
+
 
 #define CONFIG_SYS_FSL_MAX_NUM_OF_SEC		1
 
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
index 554def5..2634195 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
@@ -206,6 +206,18 @@ struct ccsr_gur {
 #define SCFG_USB3PRM2CR_USB3           0x08c
 #define USB_TXVREFTUNE                 0x9
 #define USB_SQRXTUNE                   0xFC7FFFFF
+#define USB_PCSTXSWINGFULL             0x47
+#define USB_PHY1                       0x084F0000
+#define USB_PHY2                       0x08500000
+#define USB_PHY3                       0x08510000
+#define USB_PHY_RX_OVRD_IN_HI          0x200c
+/* TODO : make it generic */
+#define USB_PHY_RX_EQ_VAL_1            0x0000
+#define USB_PHY_RX_EQ_VAL_2            0x8000
+#define USB_PHY_RX_EQ_VAL_3            0x8003
+
+#define USB_PHY_RX_EQ_VAL_4            0x800b
+
 
 	u32     devdisr2;       /* Device disable control 2 */
 	u32     devdisr3;       /* Device disable control 3 */
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
index b428b18..a7a9364 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
@@ -120,6 +120,13 @@
 #define DCFG_RCWSR15_IFCGRPABASE_QSPI	0x3
 
 #define DCFG_DCSR_BASE		0X700100000ULL
+#define DCSR_USB_PHY1                  0x4600000
+#define DCSR_USB_PHY2                  0x4610000
+#define DCSR_USB_PHY_RX_OVRD_IN_HI     0x1006
+#define USB_PHY_RX_EQ_VAL_1            0x0000
+#define USB_PHY_RX_EQ_VAL_2            0x0080
+#define USB_PHY_RX_EQ_VAL_3            0x0380
+#define USB_PHY_RX_EQ_VAL_4            0x0b80
 #define DCFG_DCSR_PORCR1		0x000
 
 /* Interrupt Sampling Control */
-- 
2.1.0.27.g96db324

  parent reply	other threads:[~2017-05-04  4:53 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-04  4:53 [U-Boot] [PATCH 1/8] armv7: Add workaround for USB erratum A-009008 yinbo.zhu
2017-05-04  4:53 ` [U-Boot] [PATCH 2/8] armv7: Add workaround for USB erratum A-009798 yinbo.zhu
2017-05-04  4:53 ` [U-Boot] [PATCH 3/8] armv7: Add workaround for USB erratum A-008997 yinbo.zhu
2017-05-04  4:53 ` [U-Boot] [PATCH 4/8] armv7: Add workaround for USB erratum A-009007 yinbo.zhu
2017-05-04  4:53 ` [U-Boot] [PATCH 5/8] armv8: Add workaround for USB erratum A-009798 yinbo.zhu
2017-05-04  4:53 ` [U-Boot] [PATCH 6/8] armv8: Add workaround for USB erratum A-008997 yinbo.zhu
2017-05-04  4:53 ` yinbo.zhu [this message]
2017-05-04  4:53 ` [U-Boot] [PATCH 8/8] USB: config: fix compiler problem for ls1021atwr yinbo.zhu
2017-05-05 14:19 ` [U-Boot] [PATCH 1/8] armv7: Add workaround for USB erratum A-009008 Tom Rini
  -- strict thread matches above, loose matches on Subject: below --
2017-04-28  4:05 [U-Boot] [PATCH 7/8] armv8: Add workaround for USB erratum A-009007 yinbo.zhu

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