armv8: ls1088a: Add NXP LS1088A SoC support

[u-boot] / arch / arm / cpu / armv8 / fsl-layerscape / fsl_lsch3_serdes.c

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c
index ef97556367c1b055120b573bbeafd43b1a5cf378..179cac6e49368690e72b61b2c91eace126ba1b58 100644 (file)
--- a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c
@@ -28,6 +28,20 @@ __weak void wriop_init_dpmac_qsgmii(int sd, int lane_prtcl)
        return;
 }
 
+/*
+ *The return value of this func is the serdes protocol used.
+ *Typically this function is called number of times depending
+ *upon the number of serdes blocks in the Silicon.
+ *Zero is used to denote that no serdes was enabled,
+ *this is the case when golden RCW was used where DPAA2 bring was
+ *intentionally removed to achieve boot to prompt
+*/
+
+__weak int serdes_get_number(int serdes, int cfg)
+{
+       return cfg;
+}
+
 int is_serdes_configured(enum srds_prtcl device)
 {
        int ret = 0;
@@ -73,6 +87,9 @@ int serdes_get_first_lane(u32 sd, enum srds_prtcl device)
                printf("invalid SerDes%d\n", sd);
                break;
        }
+
+       cfg = serdes_get_number(sd, cfg);
+
        /* Is serdes enabled at all? */
        if (cfg == 0)
                return -ENODEV;
@@ -99,6 +116,8 @@ void serdes_init(u32 sd, u32 sd_addr, u32 rcwsr, u32 sd_prctl_mask,
 
        cfg = gur_in32(&gur->rcwsr[rcwsr - 1]) & sd_prctl_mask;
        cfg >>= sd_prctl_shift;
+
+       cfg = serdes_get_number(sd, cfg);
        printf("Using SERDES%d Protocol: %d (0x%x)\n", sd + 1, cfg, cfg);
 
        if (!is_serdes_prtcl_valid(sd, cfg))