From 39aaca1f66a0e5b1204b0789f6c0097938c00ad1 Mon Sep 17 00:00:00 2001
From: Kumar Gala <galak@kernel.crashing.org>
Date: Thu, 19 Mar 2009 02:46:19 -0500
Subject: ppc/p4080: Determine various chip frequencies on CoreNet platforms

The means to determine the core, bus, and DDR frequencies are completely
new on CoreNet style platforms.  Additionally on p4080 we can have
different frequencies for FMAN and PME IP blocks.  We need to keep track
of the FMAN & PME frequencies since they are used for time stamping
capabilities inside each block.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
 cpu/mpc85xx/cpu.c | 45 +++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 41 insertions(+), 4 deletions(-)

(limited to 'cpu/mpc85xx/cpu.c')

diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c
index 25c04169fd..0cc6e0323f 100644
--- a/cpu/mpc85xx/cpu.c
+++ b/cpu/mpc85xx/cpu.c
@@ -46,11 +46,20 @@ int checkcpu (void)
 	char buf1[32], buf2[32];
 #ifdef CONFIG_DDR_CLK_FREQ
 	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+#ifdef CONFIG_FSL_CORENET
+	u32 ddr_sync = ((gur->rcwsr[5]) & FSL_CORENET_RCWSR5_DDR_SYNC)
+		>> FSL_CORENET_RCWSR5_DDR_SYNC_SHIFT;
+#else
 	u32 ddr_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO)
 		>> MPC85xx_PORPLLSR_DDR_RATIO_SHIFT;
+#endif
+#else
+#ifdef CONFIG_FSL_CORENET
+	u32 ddr_sync = 0;
 #else
 	u32 ddr_ratio = 0;
 #endif
+#endif /* CONFIG_DDR_CLK_FREQ */
 	int i;
 
 	svr = get_svr();
@@ -111,6 +120,19 @@ int checkcpu (void)
 	}
 	printf("\n       CCB:%-4s MHz,\n", strmhz(buf1, sysinfo.freqSystemBus));
 
+#ifdef CONFIG_FSL_CORENET
+	if (ddr_sync == 1) {
+		printf("       DDR:%-4s MHz (%s MT/s data rate) "
+			"(Synchronous), ",
+			strmhz(buf1, sysinfo.freqDDRBus/2),
+			strmhz(buf2, sysinfo.freqDDRBus));
+	} else {
+		printf("       DDR:%-4s MHz (%s MT/s data rate) "
+			"(Asynchronous), ",
+			strmhz(buf1, sysinfo.freqDDRBus/2),
+			strmhz(buf2, sysinfo.freqDDRBus));
+	}
+#else
 	switch (ddr_ratio) {
 	case 0x0:
 		printf("       DDR:%-4s MHz (%s MT/s data rate), ",
@@ -118,22 +140,26 @@ int checkcpu (void)
 			strmhz(buf2, sysinfo.freqDDRBus));
 		break;
 	case 0x7:
-		printf("       DDR:%-4s MHz (%s MT/s data rate) (Synchronous), ",
+		printf("       DDR:%-4s MHz (%s MT/s data rate) "
+			"(Synchronous), ",
 			strmhz(buf1, sysinfo.freqDDRBus/2),
 			strmhz(buf2, sysinfo.freqDDRBus));
 		break;
 	default:
-		printf("       DDR:%-4s MHz (%s MT/s data rate) (Asynchronous), ",
+		printf("       DDR:%-4s MHz (%s MT/s data rate) "
+			"(Asynchronous), ",
 			strmhz(buf1, sysinfo.freqDDRBus/2),
 			strmhz(buf2, sysinfo.freqDDRBus));
 		break;
 	}
+#endif
 
-	if (sysinfo.freqLocalBus > LCRR_CLKDIV)
+	if (sysinfo.freqLocalBus > LCRR_CLKDIV) {
 		printf("LBC:%-4s MHz\n", strmhz(buf1, sysinfo.freqLocalBus));
-	else
+	} else {
 		printf("LBC: unknown (LCRR[CLKDIV] = 0x%02lx)\n",
 		       sysinfo.freqLocalBus);
+	}
 
 #ifdef CONFIG_CPM2
 	printf("CPM:   %s MHz\n", strmhz(buf1, sysinfo.freqSystemBus));
@@ -143,6 +169,17 @@ int checkcpu (void)
 	printf("       QE:%-4s MHz\n", strmhz(buf1, sysinfo.freqQE));
 #endif
 
+#ifdef CONFIG_SYS_DPAA_FMAN
+	for (i = 0; i < CONFIG_SYS_NUM_FMAN; i++) {
+		printf("       FMAN%d: %s MHz\n", i,
+			strmhz(buf1, sysinfo.freqFMan[i]));
+	}
+#endif
+
+#ifdef CONFIG_SYS_DPAA_PME
+	printf("       PME:   %s MHz\n", strmhz(buf1, sysinfo.freqPME));
+#endif
+
 	puts("L1:    D-cache 32 kB enabled\n       I-cache 32 kB enabled\n");
 
 	return 0;
-- 
cgit v1.2.1