diff options
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, 12 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c index 76e3af0d56..0943e833d7 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c @@ -288,6 +288,10 @@ static void erratum_a008850_early(void) struct ccsr_cci400 __iomem *cci = (void *)CONFIG_SYS_CCI400_ADDR; struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; + /* Skip if running at lower exception level */ + if (current_el() < 3) + return; + /* disables propagation of barrier transactions to DDRC from CCI400 */ out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER); @@ -304,6 +308,10 @@ void erratum_a008850_post(void) struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; u32 tmp; + /* Skip if running at lower exception level */ + if (current_el() < 3) + return; + /* enable propagation of barrier transactions to DDRC from CCI400 */ out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER); @@ -455,8 +463,10 @@ void fsl_lsch2_early_init_f(void) * Enable snoop requests and DVM message requests for * Slave insterface S4 (A53 core cluster) */ - out_le32(&cci->slave[4].snoop_ctrl, - CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN); + if (current_el() == 3) { + out_le32(&cci->slave[4].snoop_ctrl, + CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN); + } /* Erratum */ erratum_a008850_early(); /* part 1 of 2 */ |