powerpc/85xx: add T4080 SoC support
The T4080 SoC is a low-power version of the T4160.
T4080 combines 4 dual-threaded Power Architecture e6500
cores with single cluster and two memory complexes.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index 12e8e10..684d400 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -77,6 +77,30 @@
major = SVR_MAJ(svr);
minor = SVR_MIN(svr);
+#if defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2) && defined(CONFIG_E6500)
+ if (SVR_SOC_VER(svr) == SVR_T4080) {
+ ccsr_rcpm_t *rcpm =
+ (void __iomem *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR);
+
+ setbits_be32(&gur->devdisr2, FSL_CORENET_DEVDISR2_DTSEC1_6 ||
+ FSL_CORENET_DEVDISR2_DTSEC1_9);
+ setbits_be32(&gur->devdisr3, FSL_CORENET_DEVDISR3_PCIE3);
+ setbits_be32(&gur->devdisr5, FSL_CORENET_DEVDISR5_DDR3);
+
+ /* It needs SW to disable core4~7 as HW design sake on T4080 */
+ for (i = 4; i < 8; i++)
+ cpu_disable(i);
+
+ /* request core4~7 into PH20 state, prior to entering PCL10
+ * state, all cores in cluster should be placed in PH20 state.
+ */
+ setbits_be32(&rcpm->pcph20setr, 0xf0);
+
+ /* put the 2nd cluster into PCL10 state */
+ setbits_be32(&rcpm->clpcl10setr, 1 << 1);
+ }
+#endif
+
if (cpu_numcores() > 1) {
#ifndef CONFIG_MP
puts("Unicore software on multiprocessor system!!\n"