Merge with /home/wd/git/u-boot/custodian/u-boot-mpc86xx

3 files changed, 68 insertions, 26 deletions

diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c
index 84f5bef..a33acfe 100644
--- a/cpu/mpc86xx/cpu.c
+++ b/cpu/mpc86xx/cpu.c
@@ -280,22 +280,38 @@ ft_cpu_setup(void *blob, bd_t *bd)
 
 #if defined(CONFIG_MPC86XX_TSEC1)
 	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/mac-address", &len);
-	memcpy(p, bd->bi_enetaddr, 6);
+	if (p != NULL)
+		memcpy(p, bd->bi_enetaddr, 6);
+	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/local-mac-address", &len);
+	if (p)
+		memcpy(p, bd->bi_enetaddr, 6);
 #endif
 
 #if defined(CONFIG_MPC86XX_TSEC2)
 	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/mac-address", &len);
-	memcpy(p, bd->bi_enet1addr, 6);
+	if (p != NULL)
+		memcpy(p, bd->bi_enet1addr, 6);
+	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/local-mac-address", &len);
+	if (p != NULL)
+		memcpy(p, bd->bi_enet1addr, 6);
 #endif
 
 #if defined(CONFIG_MPC86XX_TSEC3)
 	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@26000/mac-address", &len);
-	memcpy(p, bd->bi_enet2addr, 6);
+	if (p != NULL)
+		memcpy(p, bd->bi_enet2addr, 6);
+	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@26000/local-mac-address", &len);
+	if (p != NULL)
+		memcpy(p, bd->bi_enet2addr, 6);
 #endif
 
 #if defined(CONFIG_MPC86XX_TSEC4)
 	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@27000/mac-address", &len);
-	memcpy(p, bd->bi_enet3addr, 6);
+	if (p != NULL)
+		memcpy(p, bd->bi_enet3addr, 6);
+	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@27000/local-mac-address", &len);
+	if (p != NULL)
+		memcpy(p, bd->bi_enet3addr, 6);
 #endif
 
 }
diff --git a/cpu/mpc86xx/spd_sdram.c b/cpu/mpc86xx/spd_sdram.c
index ac9ff81..f37ab43 100644
--- a/cpu/mpc86xx/spd_sdram.c
+++ b/cpu/mpc86xx/spd_sdram.c
@@ -51,20 +51,32 @@ extern int dma_xfer(void *dest, uint count, void *src);
 #define CFG_SUPER_BANK_INTERLEAVING	0
 
 /*
- * Convert picoseconds into clock cycles (rounding up if needed).
+ * Convert picoseconds into DRAM clock cycles (rounding up if needed).
  */
 
-int
-picos_to_clk(int picos)
+static unsigned int
+picos_to_clk(unsigned int picos)
 {
-	int clks;
-
-	clks = picos / (2000000000 / (get_bus_freq(0) / 1000));
-	if (picos % (2000000000 / (get_bus_freq(0) / 1000)) != 0) {
+	/* use unsigned long long to avoid rounding errors */
+	const unsigned long long ULL_2e12 = 2000000000000ULL;
+	unsigned long long clks;
+	unsigned long long clks_temp;
+
+	if (! picos)
+	    return 0;
+
+	clks = get_bus_freq(0) * (unsigned long long) picos;
+	clks_temp = clks;
+	clks = clks / ULL_2e12;
+	if (clks_temp % ULL_2e12) {
 		clks++;
 	}
 
-	return clks;
+	if (clks > 0xFFFFFFFFULL) {
+		clks = 0xFFFFFFFFULL;
+	}
+
+	return (unsigned int) clks;
 }
 
 
diff --git a/cpu/mpc86xx/start.S b/cpu/mpc86xx/start.S
index 7406fe2..67c56db 100644
--- a/cpu/mpc86xx/start.S
+++ b/cpu/mpc86xx/start.S
@@ -241,26 +241,40 @@ in_flash:
 	bl	setup_ccsrbar
 #endif
 
-	/* Fix for SMP linux - Changing arbitration to round-robin */
-	lis	r3, CFG_CCSRBAR@h
-	ori	r3, r3, 0x1000
-	xor	r4, r4, r4
-	li	r4, 0x1000
-	stw	r4, 0(r3)
 
-	/* setup the law entries */
-	bl	law_entry
+	/* -- MPC8641 Rev 1.0 MCM Errata fixups -- */
+
+	/* skip fixups if not Rev 1.0 */
+	mfspr	r4, SVR
+	rlwinm	r4,r4,0,24,31
+	cmpwi	r4,0x10
+	bne	1f
+
+	lis	r3,MCM_ABCR@ha
+	lwz	r4,MCM_ABCR@l(r3)	/* ABCR -> r4 */
+
+	/* set ABCR[A_STRM_CNT] = 0 */
+	rlwinm	r4,r4,0,0,29
+
+	/* set ABCR[ARB_POLICY] to 0x1 (round-robin) */
+	addi	r0,r0,1
+	rlwimi	r4,r0,12,18,19
+
+	stw	r4,MCM_ABCR@l(r3)	/* r4 -> ABCR */
 	sync
 
-	/* Don't use this feature due to bug in 8641D PD4 */
-	/* Disable ERD_DIS */
-	lis	r3, CFG_CCSRBAR@h
-	ori	r3, r3, 0x1008
-	lwz	r4, 0(r3)
+	/* Set DBCR[ERD_DIS] */
+	lis	r3,MCM_DBCR@ha
+	lwz	r4,MCM_DBCR@l(r3)
 	oris	r4, r4, 0x4000
-	stw	r4, 0(r3)
+	stw	r4,MCM_DBCR@l(r3)
+	sync
+1:
+	/* setup the law entries */
+	bl	law_entry
 	sync
 
+
 #if (EMULATOR_RUN == 1)
 	/* On the emulator we want to adjust these ASAP */
 	/* otherwise things are sloooow */