This patch is doing the following: 1. Implementing the errata for LS2080. 2. Adding fixup for fdt for LS2080.
Signed-off-by: Sriram Dash sriram.dash@nxp.com Signed-off-by: Rajesh Bhagat rajesh.bhagat@nxp.com ---
Changes in v4: - Reworked for changes done in errata checking code.
Changes in v3: - Reworked for changes done in errata checking code. - made inline bool erratum_a008751 as int erratum_a008751 - return 0 for success, 1 for failure for erratum_a008751 - dropped the APPLY_ERRATUM macro.
Changes in v2: - Reworked for changes done in errata checking code.
.../include/asm/arch-fsl-layerscape/immap_lsch3.h | 1 + board/freescale/ls2080aqds/ls2080aqds.c | 2 ++ board/freescale/ls2080ardb/ls2080ardb.c | 2 ++ drivers/usb/common/fsl-dt-fixup.c | 7 +++++++ drivers/usb/common/fsl-errata.c | 15 ++++++++++++++ drivers/usb/host/xhci-fsl.c | 24 ++++++++++++++++++++++ include/fsl_usb.h | 1 + 7 files changed, 52 insertions(+)
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 e48bbaf..9b60bd3 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch3.h @@ -139,6 +139,7 @@ /* Supplemental Configuration */ #define SCFG_BASE 0x01fc0000 #define SCFG_USB3PRM1CR 0x000 +#define SCFG_USB3PRM1CR_INIT 0x27672b2a
#define TP_ITYP_AV 0x00000001 /* Initiator available */ #define TP_ITYP_TYPE(x) (((x) & 0x6) >> 1) /* Initiator Type */ diff --git a/board/freescale/ls2080aqds/ls2080aqds.c b/board/freescale/ls2080aqds/ls2080aqds.c index 897793d..479f689 100644 --- a/board/freescale/ls2080aqds/ls2080aqds.c +++ b/board/freescale/ls2080aqds/ls2080aqds.c @@ -298,6 +298,8 @@ int ft_board_setup(void *blob, bd_t *bd)
fdt_fixup_memory_banks(blob, base, size, 2);
+ fdt_fixup_dr_usb(blob, bd); + #ifdef CONFIG_FSL_MC_ENET fdt_fixup_board_enet(blob); err = fsl_mc_ldpaa_exit(bd); diff --git a/board/freescale/ls2080ardb/ls2080ardb.c b/board/freescale/ls2080ardb/ls2080ardb.c index 52e5e3f..a65cd4a 100644 --- a/board/freescale/ls2080ardb/ls2080ardb.c +++ b/board/freescale/ls2080ardb/ls2080ardb.c @@ -281,6 +281,8 @@ int ft_board_setup(void *blob, bd_t *bd)
fdt_fixup_memory_banks(blob, base, size, 2);
+ fdt_fixup_dr_usb(blob, bd); + #ifdef CONFIG_FSL_MC_ENET fdt_fixup_board_enet(blob); err = fsl_mc_ldpaa_exit(bd); diff --git a/drivers/usb/common/fsl-dt-fixup.c b/drivers/usb/common/fsl-dt-fixup.c index 930ca1d..9c48852 100644 --- a/drivers/usb/common/fsl-dt-fixup.c +++ b/drivers/usb/common/fsl-dt-fixup.c @@ -139,6 +139,7 @@ void fdt_fixup_dr_usb(void *blob, bd_t *bd) int usb_erratum_a007075_off = -1; int usb_erratum_a007792_off = -1; int usb_erratum_a005697_off = -1; + int usb_erratum_a008751_off = -1; int usb_mode_off = -1; int usb_phy_off = -1; char str[5]; @@ -217,5 +218,11 @@ void fdt_fixup_dr_usb(void *blob, bd_t *bd) has_erratum_a005697); if (ret == -ENOSPC) return; + ret = fdt_fixup_erratum(&usb_erratum_a008751_off, blob, + SNPS_DWC3, "a008751", + has_erratum_a008751); + if (ret == -ENOSPC) + return; + } } diff --git a/drivers/usb/common/fsl-errata.c b/drivers/usb/common/fsl-errata.c index 95918fc..ebe60a8 100644 --- a/drivers/usb/common/fsl-errata.c +++ b/drivers/usb/common/fsl-errata.c @@ -175,4 +175,19 @@ bool has_erratum_a004477(void) return false; }
+bool has_erratum_a008751(void) +{ + u32 svr = get_svr(); + u32 soc = SVR_SOC_VER(svr); + + switch (soc) { +#ifdef CONFIG_ARM64 + case SVR_LS2080: + case SVR_LS2085: + return IS_SVR_REV(svr, 1, 0); +#endif + } + return false; +} + #endif diff --git a/drivers/usb/host/xhci-fsl.c b/drivers/usb/host/xhci-fsl.c index 05f09d7..c12a189 100644 --- a/drivers/usb/host/xhci-fsl.c +++ b/drivers/usb/host/xhci-fsl.c @@ -15,6 +15,8 @@ #include <linux/usb/xhci-fsl.h> #include <linux/usb/dwc3.h> #include "xhci.h" +#include <fsl_errata.h> +#include <fsl_usb.h>
/* Declare global data pointer */ DECLARE_GLOBAL_DATA_PTR; @@ -27,6 +29,26 @@ __weak int __board_usb_init(int index, enum usb_init_type init) return 0; }
+static int erratum_a008751(void) +{ +#if defined(CONFIG_TARGET_LS2080AQDS) || defined(CONFIG_TARGET_LS2080ARDB) + u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE; + writel(SCFG_USB3PRM1CR_INIT, scfg + SCFG_USB3PRM1CR / 4); + return 0; +#endif + return 1; +} + +static void fsl_apply_xhci_errata(void) +{ + int ret; + if (has_erratum_a008751()) { + ret = erratum_a008751(); + if (ret != 0) + puts("Failed to apply erratum a008751\n"); + } +} + static int fsl_xhci_core_init(struct fsl_xhci *fsl_xhci) { int ret = 0; @@ -69,6 +91,8 @@ int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor) return ret; }
+ fsl_apply_xhci_errata(); + ret = fsl_xhci_core_init(ctx); if (ret < 0) { puts("Failed to initialize xhci\n"); diff --git a/include/fsl_usb.h b/include/fsl_usb.h index d183349..fc72fb9 100644 --- a/include/fsl_usb.h +++ b/include/fsl_usb.h @@ -94,5 +94,6 @@ bool has_erratum_a007798(void); bool has_erratum_a007792(void); bool has_erratum_a005697(void); bool has_erratum_a004477(void); +bool has_erratum_a008751(void); #endif #endif /*_ASM_FSL_USB_H_ */