From: Tang Yuantian Yuantian.Tang@nxp.com
By default the SATA IP on the ls1043a/ls1046a SoCs does not generating coherent/snoopable transactions. This patch enable it in the SCFG_SNPCNFGCR register along with sata axicc register. In addition, the dma-coherent property must be set on the SATA controller nodes.
Signed-off-by: Tang Yuantian yuantian.tang@nxp.com --- arch/arm/cpu/armv8/fsl-layerscape/soc.c | 5 ++++- arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h | 2 ++ arch/arm/include/asm/arch-fsl-layerscape/soc.h | 1 + 3 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c index 6333122..fe13782 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c @@ -224,6 +224,7 @@ int sata_init(void)
out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG); out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG); + out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG);
ahci_init((void __iomem *)CONFIG_SYS_SATA); scsi_scan(0); @@ -310,7 +311,9 @@ void fsl_lsch2_early_init_f(void) #endif /* Make SEC reads and writes snoopable */ setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SECRDSNP | - SCFG_SNPCNFGCR_SECWRSNP); + SCFG_SNPCNFGCR_SECWRSNP | + SCFG_SNPCNFGCR_SATARDSNP | + SCFG_SNPCNFGCR_SATAWRSNP);
/* * Enable snoop requests and DVM message requests for 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 95a4293..2d307cc 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h @@ -335,6 +335,8 @@ struct ccsr_gur {
#define SCFG_SNPCNFGCR_SECRDSNP 0x80000000 #define SCFG_SNPCNFGCR_SECWRSNP 0x40000000 +#define SCFG_SNPCNFGCR_SATARDSNP 0x00800000 +#define SCFG_SNPCNFGCR_SATAWRSNP 0x00400000
/* Supplemental Configuration Unit */ struct ccsr_scfg { diff --git a/arch/arm/include/asm/arch-fsl-layerscape/soc.h b/arch/arm/include/asm/arch-fsl-layerscape/soc.h index d5fe0ce..f29fd9f 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/soc.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/soc.h @@ -61,6 +61,7 @@ struct cpu_type { /* ahci port register default value */ #define AHCI_PORT_PHY_1_CFG 0xa003fffe #define AHCI_PORT_TRANS_CFG 0x08000029 +#define AHCI_PORT_AXICC_CFG 0x3fffffff
/* AHCI (sata) register map */ struct ccsr_ahci {