From: Hou Zhiqiang Zhiqiang.Hou@nxp.com
Pin mux logic has 2 options in priority order, one is through RCW_SRC and then through RCW_Fields. In case of QSPI booting, RCW_SRC logic takes the priority for SPI pads and do not allow RCW_BASE and SPI_EXT to control the SPI muxing. But actually those are DSPI controller's pads instead of QSPI controller's, so this workaround allows RCW fields SPI_BASE and SPI_EXT to control relevant pads muxing.
Signed-off-by: Hou Zhiqiang Zhiqiang.Hou@nxp.com --- arch/arm/cpu/armv8/fsl-layerscape/Kconfig | 5 +++++ arch/arm/cpu/armv8/fsl-layerscape/soc.c | 14 ++++++++++++++ arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h | 2 ++ 3 files changed, 21 insertions(+)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig index f8057ba..5a4c844 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig @@ -6,12 +6,17 @@ config ARCH_LS1012A config ARCH_LS1043A bool "Freescale Layerscape LS1043A SoC" select SYS_FSL_ERRATUM_A010315 + select SYS_FSL_ERRATUM_A010539
config ARCH_LS1046A bool "Freescale Layerscape LS1046A SoC" + select SYS_FSL_ERRATUM_A010539
config SYS_FSL_MMDC bool "Freescale Multi Mode DDR Controller"
config SYS_FSL_ERRATUM_A010315 bool "Workaround for PCIe erratum A010315" + +config SYS_FSL_ERRATUM_A010539 + bool "Workaround for PIN MUX erratum A010539" diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c index 463d1e3..0becd1b 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c @@ -321,6 +321,19 @@ void erratum_a010315(void) } #endif
+static void erratum_a010539(void) +{ +#if defined(CONFIG_SYS_FSL_ERRATUM_A010539) && defined(CONFIG_QSPI_BOOT) + struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); + u32 porsr1; + + porsr1 = in_be32(&gur->porsr1); + porsr1 &= ~FSL_CHASSIS2_CCSR_PORSR1_RCW_MASK; + out_be32((void *)(CONFIG_SYS_DCSR_DCFG_ADDR + DCFG_DCSR_PORCR1), + porsr1); +#endif +} + void fsl_lsch2_early_init_f(void) { struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR; @@ -352,6 +365,7 @@ void fsl_lsch2_early_init_f(void) erratum_a008850_early(); /* part 1 of 2 */ erratum_a009929(); erratum_a009660(); + erratum_a010539(); } #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 df51871..6fa73b7 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h @@ -168,6 +168,8 @@ struct sys_info { (CONFIG_SYS_IMMR + CONFIG_SYS_FSL_JR0_OFFSET)
/* Device Configuration and Pin Control */ +#define DCFG_DCSR_PORCR1 0x0 + struct ccsr_gur { u32 porsr1; /* POR status 1 */ #define FSL_CHASSIS2_CCSR_PORSR1_RCW_MASK 0xFF800000