Message ID | 1502955089-2049-1-git-send-email-ran.wang_1@nxp.com |
---|---|
State | Superseded |
Delegated to: | York Sun |
Headers | show |
+Marek Marek, This patch set is to add errata workarounds for FSL SoCs, not to USB driver. I intend to merge them for next release. On 08/17/2017 12:48 AM, Ran Wang wrote: > USB High Speed (HS) EYE Height Adjustment > USB HS speed eye diagram fails with the default value at > many corners, particularly at a high temperature > > Optimal eye at TXREFTUNE value to 1001 is observed, change > set the same value. > > Signed-off-by: Ran Wang <ran.wang_1@nxp.com> > --- > Change in v3: > Use inline function to make code cleaner. > Ran, This version is much better. I will change 1001 to 0x9 in the commit message to match the code. York
On 08/18/2017 06:12 PM, York Sun wrote: > +Marek > > Marek, > > This patch set is to add errata workarounds for FSL SoCs, not to USB > driver. I intend to merge them for next release. It'd be nice to see the patch too ... > On 08/17/2017 12:48 AM, Ran Wang wrote: >> USB High Speed (HS) EYE Height Adjustment >> USB HS speed eye diagram fails with the default value at >> many corners, particularly at a high temperature >> >> Optimal eye at TXREFTUNE value to 1001 is observed, change >> set the same value. >> >> Signed-off-by: Ran Wang <ran.wang_1@nxp.com> >> --- >> Change in v3: >> Use inline function to make code cleaner. >> > > Ran, > > This version is much better. I will change 1001 to 0x9 in the commit > message to match the code. > > York >
On 08/17/2017 09:31 AM, Ran Wang wrote: > USB High Speed (HS) EYE Height Adjustment > USB HS speed eye diagram fails with the default value at > many corners, particularly at a high temperature > > Optimal eye at TXREFTUNE value to 1001 is observed, change > set the same value. > > Signed-off-by: Ran Wang <ran.wang_1@nxp.com> > --- > Change in v3: > Use inline function to make code cleaner. > > Change in v2: > In function erratum_a009008(): > 1.Put a blank line after variable declaration. > 2.Move common code together. > > arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 7 ++++++ > arch/arm/cpu/armv8/fsl-layerscape/soc.c | 25 ++++++++++++++++++++++ > .../include/asm/arch-fsl-layerscape/immap_lsch2.h | 6 ++++++ > .../include/asm/arch-fsl-layerscape/immap_lsch3.h | 1 + > 4 files changed, 39 insertions(+) > > diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig > index 5825f9b..300f5ce 100644 > --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig > +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig > @@ -22,6 +22,7 @@ config ARCH_LS1043A > select SYS_FSL_ERRATUM_A009942 > select SYS_FSL_ERRATUM_A010315 > select SYS_FSL_ERRATUM_A010539 > + select SYS_FSL_ERRATUM_A009008 > select SYS_FSL_HAS_DDR3 > select SYS_FSL_HAS_DDR4 > select ARCH_EARLY_INIT_R > @@ -43,6 +44,7 @@ config ARCH_LS1046A > select SYS_FSL_ERRATUM_A009942 > select SYS_FSL_ERRATUM_A010165 > select SYS_FSL_ERRATUM_A010539 > + select SYS_FSL_ERRATUM_A009008 > select SYS_FSL_HAS_DDR4 > select SYS_FSL_SRDS_2 > select ARCH_EARLY_INIT_R > @@ -79,6 +81,7 @@ config ARCH_LS2080A > select SYS_FSL_ERRATUM_A009942 > select SYS_FSL_ERRATUM_A010165 > select SYS_FSL_ERRATUM_A009203 > + select SYS_FSL_ERRATUM_A009008 > select ARCH_EARLY_INIT_R > select BOARD_EARLY_INIT_F > > @@ -222,6 +225,10 @@ config SYS_FSL_ERRATUM_A010315 > config SYS_FSL_ERRATUM_A010539 > bool "Workaround for PIN MUX erratum A010539" > > +config SYS_FSL_ERRATUM_A009008 > + bool "Workaround for USB PHY erratum A009008" > + > + > config MAX_CPUS > int "Maximum number of CPUs permitted for Layerscape" > default 4 if ARCH_LS1043A > diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c > index aee1ffa..7e5288b 100644 > --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c > +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c > @@ -52,6 +52,29 @@ bool soc_has_aiop(void) > return false; > } > > +static inline void set_usb_txvreftune(u32 __iomem *scfg, u32 offset) Drop the inline. > +{ > + u32 val; > + > + val = scfg_in32(scfg + offset / 4) & ~(0xF << 6); > + val |= USB_TXVREFTUNE << 6; > + scfg_out32(scfg + offset / 4, val); clrsetbits_le32() or something ? Clean up the math a little. > +} > + > +static void erratum_a009008(void) > +{ > +#ifdef CONFIG_SYS_FSL_ERRATUM_A009008 > + u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE; > +#if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A) > + set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB1); > + set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB2); > + set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB3); > +#elif defined(CONFIG_ARCH_LS2080A) > + set_usb_txvreftune(scfg, SCFG_USB3PRM1CR); > +#endif > +#endif /* CONFIG_SYS_FSL_ERRATUM_A009008 */ > +} > + > #if defined(CONFIG_FSL_LSCH3) > /* > * This erratum requires setting a value to eddrtqcr1 to > @@ -198,6 +221,7 @@ void fsl_lsch3_early_init_f(void) > #endif > erratum_a008514(); > erratum_a008336(); > + erratum_a009008(); > #ifdef CONFIG_CHAIN_OF_TRUST > /* In case of Secure Boot, the IBR configures the SMMU > * to allow only Secure transactions. > @@ -473,6 +497,7 @@ void fsl_lsch2_early_init_f(void) > erratum_a009929(); > erratum_a009660(); > erratum_a010539(); > + erratum_a009008(); > } > #endif > > 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 8ad199f..62d7046 100644 > --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h > +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h > @@ -337,6 +337,12 @@ struct ccsr_gur { > #define SCFG_USBPWRFAULT_USB2_SHIFT 2 > #define SCFG_USBPWRFAULT_USB1_SHIFT 0 > > +#define SCFG_BASE 0x01570000 > +#define SCFG_USB3PRM1CR_USB1 0x070 > +#define SCFG_USB3PRM1CR_USB2 0x07C > +#define SCFG_USB3PRM1CR_USB3 0x088 > +#define USB_TXVREFTUNE 0x9 > + > #define SCFG_SNPCNFGCR_SECRDSNP 0x80000000 > #define SCFG_SNPCNFGCR_SECWRSNP 0x40000000 > #define SCFG_SNPCNFGCR_SATARDSNP 0x00800000 > 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 59410aa..c622ee5 100644 > --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h > +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h > @@ -133,6 +133,7 @@ > #define SCFG_BASE 0x01fc0000 > #define SCFG_USB3PRM1CR 0x000 > #define SCFG_USB3PRM1CR_INIT 0x27672b2a > +#define USB_TXVREFTUNE 0x9 Should this also be SCFG_USB_... ? It looks terribly ad-hoc here. > #define SCFG_QSPICLKCTLR 0x10 > > #define TP_ITYP_AV 0x00000001 /* Initiator available */ >
On 08/18/2017 10:16 AM, Marek Vasut wrote: > On 08/17/2017 09:31 AM, Ran Wang wrote: >> USB High Speed (HS) EYE Height Adjustment >> USB HS speed eye diagram fails with the default value at >> many corners, particularly at a high temperature >> >> Optimal eye at TXREFTUNE value to 1001 is observed, change >> set the same value. >> >> Signed-off-by: Ran Wang <ran.wang_1@nxp.com> >> --- >> Change in v3: >> Use inline function to make code cleaner. >> >> Change in v2: >> In function erratum_a009008(): >> 1.Put a blank line after variable declaration. >> 2.Move common code together. >> >> arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 7 ++++++ >> arch/arm/cpu/armv8/fsl-layerscape/soc.c | 25 ++++++++++++++++++++++ >> .../include/asm/arch-fsl-layerscape/immap_lsch2.h | 6 ++++++ >> .../include/asm/arch-fsl-layerscape/immap_lsch3.h | 1 + >> 4 files changed, 39 insertions(+) >> >> diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig >> index 5825f9b..300f5ce 100644 >> --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig >> +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig >> @@ -22,6 +22,7 @@ config ARCH_LS1043A >> select SYS_FSL_ERRATUM_A009942 >> select SYS_FSL_ERRATUM_A010315 >> select SYS_FSL_ERRATUM_A010539 >> + select SYS_FSL_ERRATUM_A009008 >> select SYS_FSL_HAS_DDR3 >> select SYS_FSL_HAS_DDR4 >> select ARCH_EARLY_INIT_R >> @@ -43,6 +44,7 @@ config ARCH_LS1046A >> select SYS_FSL_ERRATUM_A009942 >> select SYS_FSL_ERRATUM_A010165 >> select SYS_FSL_ERRATUM_A010539 >> + select SYS_FSL_ERRATUM_A009008 >> select SYS_FSL_HAS_DDR4 >> select SYS_FSL_SRDS_2 >> select ARCH_EARLY_INIT_R >> @@ -79,6 +81,7 @@ config ARCH_LS2080A >> select SYS_FSL_ERRATUM_A009942 >> select SYS_FSL_ERRATUM_A010165 >> select SYS_FSL_ERRATUM_A009203 >> + select SYS_FSL_ERRATUM_A009008 >> select ARCH_EARLY_INIT_R >> select BOARD_EARLY_INIT_F >> >> @@ -222,6 +225,10 @@ config SYS_FSL_ERRATUM_A010315 >> config SYS_FSL_ERRATUM_A010539 >> bool "Workaround for PIN MUX erratum A010539" >> >> +config SYS_FSL_ERRATUM_A009008 >> + bool "Workaround for USB PHY erratum A009008" >> + >> + >> config MAX_CPUS >> int "Maximum number of CPUs permitted for Layerscape" >> default 4 if ARCH_LS1043A >> diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c >> index aee1ffa..7e5288b 100644 >> --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c >> +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c >> @@ -52,6 +52,29 @@ bool soc_has_aiop(void) >> return false; >> } >> >> +static inline void set_usb_txvreftune(u32 __iomem *scfg, u32 offset) > > Drop the inline. Marek, please explain why we should drop the "inline"? I suggested the "inline" based on v2 patch. York
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig index 5825f9b..300f5ce 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig @@ -22,6 +22,7 @@ config ARCH_LS1043A select SYS_FSL_ERRATUM_A009942 select SYS_FSL_ERRATUM_A010315 select SYS_FSL_ERRATUM_A010539 + select SYS_FSL_ERRATUM_A009008 select SYS_FSL_HAS_DDR3 select SYS_FSL_HAS_DDR4 select ARCH_EARLY_INIT_R @@ -43,6 +44,7 @@ config ARCH_LS1046A select SYS_FSL_ERRATUM_A009942 select SYS_FSL_ERRATUM_A010165 select SYS_FSL_ERRATUM_A010539 + select SYS_FSL_ERRATUM_A009008 select SYS_FSL_HAS_DDR4 select SYS_FSL_SRDS_2 select ARCH_EARLY_INIT_R @@ -79,6 +81,7 @@ config ARCH_LS2080A select SYS_FSL_ERRATUM_A009942 select SYS_FSL_ERRATUM_A010165 select SYS_FSL_ERRATUM_A009203 + select SYS_FSL_ERRATUM_A009008 select ARCH_EARLY_INIT_R select BOARD_EARLY_INIT_F @@ -222,6 +225,10 @@ config SYS_FSL_ERRATUM_A010315 config SYS_FSL_ERRATUM_A010539 bool "Workaround for PIN MUX erratum A010539" +config SYS_FSL_ERRATUM_A009008 + bool "Workaround for USB PHY erratum A009008" + + config MAX_CPUS int "Maximum number of CPUs permitted for Layerscape" default 4 if ARCH_LS1043A diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c index aee1ffa..7e5288b 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c @@ -52,6 +52,29 @@ bool soc_has_aiop(void) return false; } +static inline void set_usb_txvreftune(u32 __iomem *scfg, u32 offset) +{ + u32 val; + + val = scfg_in32(scfg + offset / 4) & ~(0xF << 6); + val |= USB_TXVREFTUNE << 6; + scfg_out32(scfg + offset / 4, val); +} + +static void erratum_a009008(void) +{ +#ifdef CONFIG_SYS_FSL_ERRATUM_A009008 + u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE; +#if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A) + set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB1); + set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB2); + set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB3); +#elif defined(CONFIG_ARCH_LS2080A) + set_usb_txvreftune(scfg, SCFG_USB3PRM1CR); +#endif +#endif /* CONFIG_SYS_FSL_ERRATUM_A009008 */ +} + #if defined(CONFIG_FSL_LSCH3) /* * This erratum requires setting a value to eddrtqcr1 to @@ -198,6 +221,7 @@ void fsl_lsch3_early_init_f(void) #endif erratum_a008514(); erratum_a008336(); + erratum_a009008(); #ifdef CONFIG_CHAIN_OF_TRUST /* In case of Secure Boot, the IBR configures the SMMU * to allow only Secure transactions. @@ -473,6 +497,7 @@ void fsl_lsch2_early_init_f(void) erratum_a009929(); erratum_a009660(); erratum_a010539(); + erratum_a009008(); } #endif 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 8ad199f..62d7046 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h @@ -337,6 +337,12 @@ struct ccsr_gur { #define SCFG_USBPWRFAULT_USB2_SHIFT 2 #define SCFG_USBPWRFAULT_USB1_SHIFT 0 +#define SCFG_BASE 0x01570000 +#define SCFG_USB3PRM1CR_USB1 0x070 +#define SCFG_USB3PRM1CR_USB2 0x07C +#define SCFG_USB3PRM1CR_USB3 0x088 +#define USB_TXVREFTUNE 0x9 + #define SCFG_SNPCNFGCR_SECRDSNP 0x80000000 #define SCFG_SNPCNFGCR_SECWRSNP 0x40000000 #define SCFG_SNPCNFGCR_SATARDSNP 0x00800000 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 59410aa..c622ee5 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h @@ -133,6 +133,7 @@ #define SCFG_BASE 0x01fc0000 #define SCFG_USB3PRM1CR 0x000 #define SCFG_USB3PRM1CR_INIT 0x27672b2a +#define USB_TXVREFTUNE 0x9 #define SCFG_QSPICLKCTLR 0x10 #define TP_ITYP_AV 0x00000001 /* Initiator available */
USB High Speed (HS) EYE Height Adjustment USB HS speed eye diagram fails with the default value at many corners, particularly at a high temperature Optimal eye at TXREFTUNE value to 1001 is observed, change set the same value. Signed-off-by: Ran Wang <ran.wang_1@nxp.com> --- Change in v3: Use inline function to make code cleaner. Change in v2: In function erratum_a009008(): 1.Put a blank line after variable declaration. 2.Move common code together. arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 7 ++++++ arch/arm/cpu/armv8/fsl-layerscape/soc.c | 25 ++++++++++++++++++++++ .../include/asm/arch-fsl-layerscape/immap_lsch2.h | 6 ++++++ .../include/asm/arch-fsl-layerscape/immap_lsch3.h | 1 + 4 files changed, 39 insertions(+)