diff --git a/meta/conf/machine/include/tune-ppce300c3.inc b/meta/conf/machine/include/tune-ppce300c3.inc
new file mode 100644
index 0000000..b19cf22
--- /dev/null
+++ b/meta/conf/machine/include/tune-ppce300c3.inc
@@ -0,0 +1,23 @@
+DEFAULTTUNE ?= "ppce300c3"
+
+require conf/machine/include/powerpc/arch-powerpc.inc
+
+AVAILTUNES += "ppce300c3 ppce300c3-nf"
+
+# hard-float
+TUNEVALID[ppce300c3] = "Enable ppce300c3 specific processor optimizations"
+TUNE_FEATURES_tune-ppce300c3 = "${TUNE_FEATURES_tune-powerpc} ppce300c3"
+TUNE_PKGARCH_tune-ppce300c3 = "ppce300c3"
+PACKAGE_EXTRA_ARCHS_tune-ppce300c3 = "${PACKAGE_EXTRA_ARCHS_tune-powerpc} ppce300c3"
+TUNE_CCARGS .= "${@bb.utils.contains("TUNE_FEATURES", "ppce300c3", " -mcpu=e300c3", "", d)}"
+
+# glibc config options to make use of e300c3 (603e) specific sqrt/sqrtf routines
+GLIBC_EXTRA_OECONF += "${@bb.utils.contains("TUNE_FEATURES", "ppce300c3", "--with-cpu=e300c3", "", d)}"
+
+# soft-float
+TUNEVALID[ppce300c3-nf] = "Enable ppce300c3 specific processor optimizations (no fpu)"
+TUNE_FEATURES_tune-ppce300c3-nf = "${TUNE_FEATURES_tune-powerpc-nf} ppce300c3-nf"
+TUNE_PKGARCH_tune-ppce300c3-nf = "ppce300c3-nf"
+PACKAGE_EXTRA_ARCHS_tune-ppce300c3-nf = "${PACKAGE_EXTRA_ARCHS_tune-powerpc-nf} ppce300c3-nf"
+TUNE_CCARGS .= "${@bb.utils.contains("TUNE_FEATURES", "ppce300c3-nf", " -mcpu=e300c3", "", d)}"
+