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armv8: Add workaround for USB erratum A-009007

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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: Sriram Dash <sriram.dash@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Signed-off-by: Suresh Gupta <suresh.bhagat@nxp.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
[YS: Reordered Kconfig options]
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Ran Wang 2017-09-04 18:46:51 +08:00 committed by York Sun
parent 9d1cd910f7
commit 15d59b5316
4 changed files with 65 additions and 0 deletions
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8
arch/arm/cpu/armv8/fsl-layerscape/Kconfig
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@ -17,6 +17,7 @@ config ARCH_LS1043A
select SYS_FSL_DDR_VER_50
select SYS_FSL_ERRATUM_A008850
select SYS_FSL_ERRATUM_A008997
select SYS_FSL_ERRATUM_A009007
select SYS_FSL_ERRATUM_A009008
select SYS_FSL_ERRATUM_A009660
select SYS_FSL_ERRATUM_A009663
@ -43,6 +44,7 @@ config ARCH_LS1046A
select SYS_FSL_ERRATUM_A008511
select SYS_FSL_ERRATUM_A008850
select SYS_FSL_ERRATUM_A008997
select SYS_FSL_ERRATUM_A009007
select SYS_FSL_ERRATUM_A009008
select SYS_FSL_ERRATUM_A009798
select SYS_FSL_ERRATUM_A009801
@ -107,6 +109,7 @@ config ARCH_LS2080A
select SYS_FSL_ERRATUM_A008514
select SYS_FSL_ERRATUM_A008585
select SYS_FSL_ERRATUM_A008997
select SYS_FSL_ERRATUM_A009007
select SYS_FSL_ERRATUM_A009008
select SYS_FSL_ERRATUM_A009635
select SYS_FSL_ERRATUM_A009663
@ -260,6 +263,11 @@ endmenu
config SYS_FSL_ERRATUM_A008997
bool "Workaround for USB PHY erratum A008997"
config SYS_FSL_ERRATUM_A009007
bool
help
Workaround for USB PHY erratum A009007
config SYS_FSL_ERRATUM_A009008
bool "Workaround for USB PHY erratum A009008"

40
arch/arm/cpu/armv8/fsl-layerscape/soc.c
View File

@ -119,6 +119,44 @@ static void erratum_a008997(void)
#endif /* CONFIG_SYS_FSL_ERRATUM_A008997 */
}
#if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
#define PROGRAM_USB_PHY_RX_OVRD_IN_HI(phy) \
out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_1); \
out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_2); \
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)
#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); \
out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_2); \
out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_3); \
out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_4)
#endif
static void erratum_a009007(void)
{
#if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
void __iomem *usb_phy = (void __iomem *)SCFG_USB_PHY1;
PROGRAM_USB_PHY_RX_OVRD_IN_HI(usb_phy);
usb_phy = (void __iomem *)SCFG_USB_PHY2;
PROGRAM_USB_PHY_RX_OVRD_IN_HI(usb_phy);
usb_phy = (void __iomem *)SCFG_USB_PHY3;
PROGRAM_USB_PHY_RX_OVRD_IN_HI(usb_phy);
#elif defined(CONFIG_ARCH_LS2080A)
void __iomem *dcsr = (void __iomem *)DCSR_BASE;
PROGRAM_USB_PHY_RX_OVRD_IN_HI(dcsr + DCSR_USB_PHY1);
PROGRAM_USB_PHY_RX_OVRD_IN_HI(dcsr + DCSR_USB_PHY2);
#endif /* CONFIG_SYS_FSL_ERRATUM_A009007 */
}
#if defined(CONFIG_FSL_LSCH3)
/*
* This erratum requires setting a value to eddrtqcr1 to
@ -268,6 +306,7 @@ 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.
@ -549,6 +588,7 @@ void fsl_lsch2_early_init_f(void)
erratum_a009008();
erratum_a009798();
erratum_a008997();
erratum_a009007();
}
#endif

8
arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h
View File

@ -347,6 +347,14 @@ struct ccsr_gur {
#define SCFG_USB_TXVREFTUNE 0x9
#define SCFG_USB_SQRXTUNE_MASK 0x7
#define SCFG_USB_PCSTXSWINGFULL 0x47
#define SCFG_USB_PHY1 0x084F0000
#define SCFG_USB_PHY2 0x08500000
#define SCFG_USB_PHY3 0x08510000
#define SCFG_USB_PHY_RX_OVRD_IN_HI 0x200c
#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 SCFG_SNPCNFGCR_SECRDSNP 0x80000000
#define SCFG_SNPCNFGCR_SECWRSNP 0x40000000

9
arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h
View File

@ -137,6 +137,15 @@
#define SCFG_USB_SQRXTUNE_MASK 0x7
#define SCFG_QSPICLKCTLR 0x10
#define DCSR_BASE 0x700000000ULL
#define DCSR_USB_PHY1 0x4600000
#define DCSR_USB_PHY2 0x4610000
#define DCSR_USB_PHY_RX_OVRD_IN_HI 0x200C
#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 TP_ITYP_AV 0x00000001 /* Initiator available */
#define TP_ITYP_TYPE(x) (((x) & 0x6) >> 1) /* Initiator Type */
#define TP_ITYP_TYPE_ARM 0x0