#define AHCI_VEND_PP3C 0xB0
#define AHCI_VEND_PP4C 0xB4
#define AHCI_VEND_PP5C 0xB8
+#define AHCI_VEND_AXICC 0xBC
#define AHCI_VEND_PAXIC 0xC0
#define AHCI_VEND_PTC 0xC8
#define PAXIC_MARIDD (1 << 16)
#define PAXIC_OTL (0x4 << 20)
+/* Register bit definitions for cache control */
+#define AXICC_ARCA_VAL (0xF << 0)
+#define AXICC_ARCF_VAL (0xF << 4)
+#define AXICC_ARCH_VAL (0xF << 8)
+#define AXICC_ARCP_VAL (0xF << 12)
+#define AXICC_AWCFD_VAL (0xF << 16)
+#define AXICC_AWCD_VAL (0xF << 20)
+#define AXICC_AWCF_VAL (0xF << 24)
+
#define PCFG_TPSS_VAL (0x32 << 16)
#define PCFG_TPRS_VAL (0x2 << 12)
#define PCFG_PAD_VAL 0x2
u32 pp3c[NR_PORTS];
u32 pp4c[NR_PORTS];
u32 pp5c[NR_PORTS];
+ /* Axi Cache Control Register */
+ u32 axicc;
+ bool is_cci_enabled;
int flags;
};
tmp = PCFG_TPSS_VAL | PCFG_TPRS_VAL | (PCFG_PAD_VAL + i);
writel(tmp, mmio + AHCI_VEND_PCFG);
+ /* Set AXI cache control register if CCi is enabled */
+ if (cevapriv->is_cci_enabled) {
+ tmp = readl(mmio + AHCI_VEND_AXICC);
+ tmp |= AXICC_ARCA_VAL | AXICC_ARCF_VAL |
+ AXICC_ARCH_VAL | AXICC_ARCP_VAL |
+ AXICC_AWCFD_VAL | AXICC_AWCD_VAL |
+ AXICC_AWCF_VAL;
+ writel(tmp, mmio + AHCI_VEND_AXICC);
+ }
+
/* Port Phy Cfg register enables */
tmp = PPCFG_TTA | PPCFG_PSS_EN | PPCFG_ESDF_EN;
writel(tmp, mmio + AHCI_VEND_PPCFG);
struct device *dev = &pdev->dev;
struct ahci_host_priv *hpriv;
struct ceva_ahci_priv *cevapriv;
+ enum dev_dma_attr attr;
int rc;
cevapriv = devm_kzalloc(dev, sizeof(*cevapriv), GFP_KERNEL);
return -EINVAL;
}
+ /*
+ * Check if CCI is enabled for SATA. The DEV_DMA_COHERENT is returned
+ * if CCI is enabled, so check for DEV_DMA_COHERENT.
+ */
+ attr = device_get_dma_attr(dev);
+ cevapriv->is_cci_enabled = (attr == DEV_DMA_COHERENT);
+
hpriv->plat_data = cevapriv;
/* CEVA specific initialization */