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| author | Hou Zhiqiang <Zhiqiang.Hou@nxp.com> | 2016-09-29 04:42:44 (GMT) |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2016-10-06 16:57:36 (GMT) |
| commit | 0ea3671d35dc5a6f2555bb5307d76e229e81f47d (patch) | |
| tree | 1cbe9bcac69186e6b995f66b8e976d85cbb6ed64 /arch/arm/cpu/armv8/fsl-layerscape/soc.c | |
| parent | adee1d4c9eb16a49ec1396b3367d027b7c3d2940 (diff) | |
| download | u-boot-fsl-qoriq-0ea3671d35dc5a6f2555bb5307d76e229e81f47d.tar.xz | |
armv8/fsl-lsch2: Implement workaround for PIN MUX erratum A010539
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>
[York Sun: Reformatted commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch/arm/cpu/armv8/fsl-layerscape/soc.c')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/soc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c index aa6a184..d68eeba 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c @@ -320,6 +320,19 @@ 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; @@ -353,6 +366,7 @@ void fsl_lsch2_early_init_f(void) erratum_a008850_early(); /* part 1 of 2 */ erratum_a009929(); erratum_a009660(); + erratum_a010539(); } #endif |