ppc4xx: Cleanup of PVR detection code in cpu.c

This patch cleans the PVR detection code in check_cpu() up a bit.
Basically the strings are better seperated, resulting in an easier
to understand and maintain code version.

The #ifdef's couldn't be removed easily because of two reasons:

- Some SoC revisions have the same PVR, so need a way to differentiate
  between those two SoC's.
- In some case statements registers only available in this SoC variant
  are referenced.

Instead I moved the CONFIG_440 #ifdef a bit, so that 405 platforms don't
add this 440 detection code and vice versa. Resulting in this U-Boot
image size change:

405EX (Kilauea):     408 bytes less
440EPx (Sequoia):    604 bytes less
460EX (Canyonlands): 564 bytes less

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Wolfgang Denk <wd@denx.de>

arch/powerpc/cpu/ppc4xx/cpu.c

@@ -303,123 +303,113 @@ int checkcpu (void)
 	get_sys_info(&sys_info);
 
 #if defined(CONFIG_XILINX_440)
-	puts("IBM PowerPC 4");
+	puts("IBM PowerPC ");
 #else
-	puts("AMCC PowerPC 4");
-#endif
-
-#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \
-    defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \
-    defined(CONFIG_405EX)
-	puts("05");
-#endif
-#if defined(CONFIG_440)
-#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
-	puts("60");
-#else
-	puts("40");
-#endif
+	puts("AMCC PowerPC ");
 #endif
 
 	switch (pvr) {
+
+#if !defined(CONFIG_440)
 	case PVR_405GP_RB:
-		puts("GP Rev. B");
+		puts("405GP Rev. B");
 		break;
 
 	case PVR_405GP_RC:
-		puts("GP Rev. C");
+		puts("405GP Rev. C");
 		break;
 
 	case PVR_405GP_RD:
-		puts("GP Rev. D");
+		puts("405GP Rev. D");
 		break;
 
 #ifdef CONFIG_405GP
 	case PVR_405GP_RE: /* 405GP rev E and 405CR rev C have same PVR */
-		puts("GP Rev. E");
+		puts("405GP Rev. E");
 		break;
 #endif
 
 	case PVR_405CR_RA:
-		puts("CR Rev. A");
+		puts("405CR Rev. A");
 		break;
 
 	case PVR_405CR_RB:
-		puts("CR Rev. B");
+		puts("405CR Rev. B");
 		break;
 
 #ifdef CONFIG_405CR
 	case PVR_405CR_RC: /* 405GP rev E and 405CR rev C have same PVR */
-		puts("CR Rev. C");
+		puts("405CR Rev. C");
 		break;
 #endif
 
 	case PVR_405GPR_RB:
-		puts("GPr Rev. B");
+		puts("405GPr Rev. B");
 		break;
 
 	case PVR_405EP_RB:
-		puts("EP Rev. B");
+		puts("405EP Rev. B");
 		break;
 
 	case PVR_405EZ_RA:
-		puts("EZ Rev. A");
+		puts("405EZ Rev. A");
 		break;
 
 	case PVR_405EX1_RA:
-		puts("EX Rev. A");
+		puts("405EX Rev. A");
 		strcpy(addstr, "Security support");
 		break;
 
 	case PVR_405EXR2_RA:
-		puts("EXr Rev. A");
+		puts("405EXr Rev. A");
 		strcpy(addstr, "No Security support");
 		break;
 
 	case PVR_405EX1_RC:
-		puts("EX Rev. C");
+		puts("405EX Rev. C");
 		strcpy(addstr, "Security support");
 		break;
 
 	case PVR_405EX2_RC:
-		puts("EX Rev. C");
+		puts("405EX Rev. C");
 		strcpy(addstr, "No Security support");
 		break;
 
 	case PVR_405EXR1_RC:
-		puts("EXr Rev. C");
+		puts("405EXr Rev. C");
 		strcpy(addstr, "Security support");
 		break;
 
 	case PVR_405EXR2_RC:
-		puts("EXr Rev. C");
+		puts("405EXr Rev. C");
 		strcpy(addstr, "No Security support");
 		break;
 
 	case PVR_405EX1_RD:
-		puts("EX Rev. D");
+		puts("405EX Rev. D");
 		strcpy(addstr, "Security support");
 		break;
 
 	case PVR_405EX2_RD:
-		puts("EX Rev. D");
+		puts("405EX Rev. D");
 		strcpy(addstr, "No Security support");
 		break;
 
 	case PVR_405EXR1_RD:
-		puts("EXr Rev. D");
+		puts("405EXr Rev. D");
 		strcpy(addstr, "Security support");
 		break;
 
 	case PVR_405EXR2_RD:
-		puts("EXr Rev. D");
+		puts("405EXr Rev. D");
 		strcpy(addstr, "No Security support");
 		break;
 
-#if defined(CONFIG_440)
+#else /* CONFIG_440 */
+
 #if defined(CONFIG_440GP)
 	case PVR_440GP_RB:
-		puts("GP Rev. B");
+		puts("440GP Rev. B");
 		/* See errata 1.12: CHIP_4 */
 		if ((mfdcr(CPC0_SYS0) != mfdcr(CPC0_STRP0)) ||
 		    (mfdcr(CPC0_SYS1) != mfdcr(CPC0_STRP1)) ){
@@ -432,128 +422,127 @@ int checkcpu (void)
 		break;
 
 	case PVR_440GP_RC:
-		puts("GP Rev. C");
+		puts("440GP Rev. C");
 		break;
 #endif /* CONFIG_440GP */
 
 	case PVR_440GX_RA:
-		puts("GX Rev. A");
+		puts("440GX Rev. A");
 		break;
 
 	case PVR_440GX_RB:
-		puts("GX Rev. B");
+		puts("440GX Rev. B");
 		break;
 
 	case PVR_440GX_RC:
-		puts("GX Rev. C");
+		puts("440GX Rev. C");
 		break;
 
 	case PVR_440GX_RF:
-		puts("GX Rev. F");
+		puts("440GX Rev. F");
 		break;
 
 	case PVR_440EP_RA:
-		puts("EP Rev. A");
+		puts("440EP Rev. A");
 		break;
 
 #ifdef CONFIG_440EP
 	case PVR_440EP_RB: /* 440EP rev B and 440GR rev A have same PVR */
-		puts("EP Rev. B");
+		puts("440EP Rev. B");
 		break;
 
 	case PVR_440EP_RC: /* 440EP rev C and 440GR rev B have same PVR */
-		puts("EP Rev. C");
+		puts("440EP Rev. C");
 		break;
 #endif /*  CONFIG_440EP */
 
 #ifdef CONFIG_440GR
 	case PVR_440GR_RA: /* 440EP rev B and 440GR rev A have same PVR */
-		puts("GR Rev. A");
+		puts("440GR Rev. A");
 		break;
 
 	case PVR_440GR_RB: /* 440EP rev C and 440GR rev B have same PVR */
-		puts("GR Rev. B");
+		puts("440GR Rev. B");
 		break;
 #endif /* CONFIG_440GR */
-#endif /* CONFIG_440 */
 
 #ifdef CONFIG_440EPX
 	case PVR_440EPX1_RA: /* 440EPx rev A and 440GRx rev A have same PVR */
-		puts("EPx Rev. A");
+		puts("440EPx Rev. A");
 		strcpy(addstr, "Security/Kasumi support");
 		break;
 
 	case PVR_440EPX2_RA: /* 440EPx rev A and 440GRx rev A have same PVR */
-		puts("EPx Rev. A");
+		puts("440EPx Rev. A");
 		strcpy(addstr, "No Security/Kasumi support");
 		break;
 #endif /* CONFIG_440EPX */
 
 #ifdef CONFIG_440GRX
 	case PVR_440GRX1_RA: /* 440EPx rev A and 440GRx rev A have same PVR */
-		puts("GRx Rev. A");
+		puts("440GRx Rev. A");
 		strcpy(addstr, "Security/Kasumi support");
 		break;
 
 	case PVR_440GRX2_RA: /* 440EPx rev A and 440GRx rev A have same PVR */
-		puts("GRx Rev. A");
+		puts("440GRx Rev. A");
 		strcpy(addstr, "No Security/Kasumi support");
 		break;
 #endif /* CONFIG_440GRX */
 
 	case PVR_440SP_6_RAB:
-		puts("SP Rev. A/B");
+		puts("440SP Rev. A/B");
 		strcpy(addstr, "RAID 6 support");
 		break;
 
 	case PVR_440SP_RAB:
-		puts("SP Rev. A/B");
+		puts("440SP Rev. A/B");
 		strcpy(addstr, "No RAID 6 support");
 		break;
 
 	case PVR_440SP_6_RC:
-		puts("SP Rev. C");
+		puts("440SP Rev. C");
 		strcpy(addstr, "RAID 6 support");
 		break;
 
 	case PVR_440SP_RC:
-		puts("SP Rev. C");
+		puts("440SP Rev. C");
 		strcpy(addstr, "No RAID 6 support");
 		break;
 
 	case PVR_440SPe_6_RA:
-		puts("SPe Rev. A");
+		puts("440SPe Rev. A");
 		strcpy(addstr, "RAID 6 support");
 		break;
 
 	case PVR_440SPe_RA:
-		puts("SPe Rev. A");
+		puts("440SPe Rev. A");
 		strcpy(addstr, "No RAID 6 support");
 		break;
 
 	case PVR_440SPe_6_RB:
-		puts("SPe Rev. B");
+		puts("440SPe Rev. B");
 		strcpy(addstr, "RAID 6 support");
 		break;
 
 	case PVR_440SPe_RB:
-		puts("SPe Rev. B");
+		puts("440SPe Rev. B");
 		strcpy(addstr, "No RAID 6 support");
 		break;
 
 #if defined(CONFIG_460EX) || defined(CONFIG_460GT)
 	case PVR_460EX_RA:
-		puts("EX Rev. A");
+		puts("460EX Rev. A");
 		strcpy(addstr, "No Security/Kasumi support");
 		break;
 
 	case PVR_460EX_SE_RA:
-		puts("EX Rev. A");
+		puts("460EX Rev. A");
 		strcpy(addstr, "Security/Kasumi support");
 		break;
 
 	case PVR_460EX_RB:
-		puts("EX Rev. B");
+		puts("460EX Rev. B");
 		mfsdr(SDR0_ECID3, reg);
 		if (reg & 0x00100000)
 			strcpy(addstr, "No Security/Kasumi support");
@@ -562,17 +551,17 @@ int checkcpu (void)
 		break;
 
 	case PVR_460GT_RA:
-		puts("GT Rev. A");
+		puts("460GT Rev. A");
 		strcpy(addstr, "No Security/Kasumi support");
 		break;
 
 	case PVR_460GT_SE_RA:
-		puts("GT Rev. A");
+		puts("460GT Rev. A");
 		strcpy(addstr, "Security/Kasumi support");
 		break;
 
 	case PVR_460GT_RB:
-		puts("GT Rev. B");
+		puts("460GT Rev. B");
 		mfsdr(SDR0_ECID3, reg);
 		if (reg & 0x00100000)
 			strcpy(addstr, "No Security/Kasumi support");
@@ -582,28 +571,29 @@ int checkcpu (void)
 #endif
 
 	case PVR_460SX_RA:
-		puts("SX Rev. A");
+		puts("460SX Rev. A");
 		strcpy(addstr, "Security support");
 		break;
 
 	case PVR_460SX_RA_V1:
-		puts("SX Rev. A");
+		puts("460SX Rev. A");
 		strcpy(addstr, "No Security support");
 		break;
 
 	case PVR_460GX_RA:
-		puts("GX Rev. A");
+		puts("460GX Rev. A");
 		strcpy(addstr, "Security support");
 		break;
 
 	case PVR_460GX_RA_V1:
-		puts("GX Rev. A");
+		puts("460GX Rev. A");
 		strcpy(addstr, "No Security support");
 		break;
 
 	case PVR_VIRTEX5:
-		puts("x5 VIRTEX5");
+		puts("440x5 VIRTEX5");
 		break;
+#endif /* CONFIG_440 */
 
 	default:
 		printf (" UNKNOWN (PVR=%08x)", pvr);