armv8: layerscape: sata: refine port register configuration

Sata registers PP2C and PP3C are used to control the configuration
of the PHY control OOB timing for the COMINIT/COMWAKE parameters
respectively. Calculate those parameters from port clock frequency.
Overwrite those registers with calculated values to get better OOB
timing.

Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
index ae57c0e31d73550d09a5f6d8c4b530c6e0347861..dc4a437344811d210995fd4b08ec7e9756975af8 100644 (file)
--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
@@ -341,6 +341,8 @@ int sata_init(void)
 #ifdef CONFIG_SYS_SATA2
        ccsr_ahci  = (void *)CONFIG_SYS_SATA2;
        out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG);
+       out_le32(&ccsr_ahci->pp2c, AHCI_PORT_PHY2_CFG);
+       out_le32(&ccsr_ahci->pp3c, AHCI_PORT_PHY3_CFG);
        out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG);
        out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG);
 #endif
@@ -348,6 +350,8 @@ int sata_init(void)
 #ifdef CONFIG_SYS_SATA1
        ccsr_ahci  = (void *)CONFIG_SYS_SATA1;
        out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG);
+       out_le32(&ccsr_ahci->pp2c, AHCI_PORT_PHY2_CFG);
+       out_le32(&ccsr_ahci->pp3c, AHCI_PORT_PHY3_CFG);
        out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG);
        out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG);
 
@@ -368,6 +372,8 @@ int sata_init(void)
        /* Disable SATA ECC */
        out_le32((void *)CONFIG_SYS_DCSR_DCFG_ADDR + 0x520, 0x80000000);
        out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG);
+       out_le32(&ccsr_ahci->pp2c, AHCI_PORT_PHY2_CFG);
+       out_le32(&ccsr_ahci->pp3c, AHCI_PORT_PHY3_CFG);
        out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG);
        out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG);
 

diff --git a/arch/arm/include/asm/arch-fsl-layerscape/soc.h b/arch/arm/include/asm/arch-fsl-layerscape/soc.h
index 09f64e7bd7e654e3b0d41bcf6515197edf071cfb..1e65e4e1147719310376a49c253f3d958fb2e5ec 100644 (file)
--- a/arch/arm/include/asm/arch-fsl-layerscape/soc.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/soc.h
@@ -88,6 +88,8 @@ struct cpu_type {
 
 /* ahci port register default value */
 #define AHCI_PORT_PHY_1_CFG    0xa003fffe
+#define AHCI_PORT_PHY2_CFG     0x28184d1f
+#define AHCI_PORT_PHY3_CFG     0x0e081509
 #define AHCI_PORT_TRANS_CFG    0x08000029
 #define AHCI_PORT_AXICC_CFG    0x3fffffff