armv8/ls1043a: fixup GIC offset for ls1043a rev1

[oweals/u-boot.git] / arch / arm / cpu / armv8 / fsl-layerscape / fdt.c

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index c10ccf9063a6cae4977fe5da7fbacf1f152f54c3..f289172c6c508c742f8ddb37fd174de36aae322b 100644 (file)
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
@@ -133,6 +133,67 @@ void fsl_fdt_disable_usb(void *blob)
        }
 }
 
+#ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
+static void fdt_fixup_gic(void *blob)
+{
+       int offset, err;
+       u64 reg[8];
+       struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+       unsigned int val;
+       struct ccsr_scfg __iomem *scfg = (void *)CONFIG_SYS_FSL_SCFG_ADDR;
+       int align_64k = 0;
+
+       val = gur_in32(&gur->svr);
+
+       if (SVR_SOC_VER(val) != SVR_LS1043A) {
+               align_64k = 1;
+       } else if (SVR_REV(val) != REV1_0) {
+               val = scfg_in32(&scfg->gic_align) & (0x01 << GIC_ADDR_BIT);
+               if (!val)
+                       align_64k = 1;
+       }
+
+       offset = fdt_subnode_offset(blob, 0, "interrupt-controller@1400000");
+       if (offset < 0) {
+               printf("WARNING: fdt_subnode_offset can't find node %s: %s\n",
+                      "interrupt-controller@1400000", fdt_strerror(offset));
+               return;
+       }
+
+       /* Fixup gic node align with 64K */
+       if (align_64k) {
+               reg[0] = cpu_to_fdt64(GICD_BASE_64K);
+               reg[1] = cpu_to_fdt64(GICD_SIZE_64K);
+               reg[2] = cpu_to_fdt64(GICC_BASE_64K);
+               reg[3] = cpu_to_fdt64(GICC_SIZE_64K);
+               reg[4] = cpu_to_fdt64(GICH_BASE_64K);
+               reg[5] = cpu_to_fdt64(GICH_SIZE_64K);
+               reg[6] = cpu_to_fdt64(GICV_BASE_64K);
+               reg[7] = cpu_to_fdt64(GICV_SIZE_64K);
+       } else {
+       /* Fixup gic node align with default */
+               reg[0] = cpu_to_fdt64(GICD_BASE);
+               reg[1] = cpu_to_fdt64(GICD_SIZE);
+               reg[2] = cpu_to_fdt64(GICC_BASE);
+               reg[3] = cpu_to_fdt64(GICC_SIZE);
+               reg[4] = cpu_to_fdt64(GICH_BASE);
+               reg[5] = cpu_to_fdt64(GICH_SIZE);
+               reg[6] = cpu_to_fdt64(GICV_BASE);
+               reg[7] = cpu_to_fdt64(GICV_SIZE);
+       }
+
+       err = fdt_setprop(blob, offset, "reg", reg, sizeof(reg));
+       if (err < 0) {
+               printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
+                      "reg", "interrupt-controller@1400000",
+                      fdt_strerror(err));
+               return;
+       }
+
+       return;
+}
+#endif
+
 void ft_cpu_setup(void *blob, bd_t *bd)
 {
 #ifdef CONFIG_FSL_LSCH2
@@ -177,4 +238,7 @@ void ft_cpu_setup(void *blob, bd_t *bd)
 #endif
        fsl_fdt_disable_usb(blob);
 
+#ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
+       fdt_fixup_gic(blob);
+#endif
 }