mainboard/amd/serengeti_cheetah*: Use C89 comments style & remove commented code

Change-Id: I2fae9e02e2fccaff97f2441fd17f8960e8ab9786
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16975
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/mainboard/amd/serengeti_cheetah/romstage.c b/src/mainboard/amd/serengeti_cheetah/romstage.c
index fff950a..5179448 100644
--- a/src/mainboard/amd/serengeti_cheetah/romstage.c
+++ b/src/mainboard/amd/serengeti_cheetah/romstage.c
@@ -37,8 +37,8 @@
 
 static void memreset_setup(void)
 {
-	//GPIO on amd8111 to enable MEMRST ????
-	outb((1 << 2)|(1 << 0), SMBUS_IO_BASE + 0xc0 + 16);  //REVC_MEMRST_EN = 1
+	/* GPIO on amd8111 to enable MEMRST ???? */
+	outb((1 << 2)|(1 << 0), SMBUS_IO_BASE + 0xc0 + 16);  /* REVC_MEMRST_EN = 1 */
 	outb((1 << 2)|(0 << 0), SMBUS_IO_BASE + 0xc0 + 17);
 }
 
@@ -49,7 +49,7 @@
 #define SMBUS_HUB 0x18
 	int ret,i;
 	unsigned device=(ctrl->channel0[0])>>8;
-	/* the very first write always get COL_STS = 1 and ABRT_STS = 1, so try another time*/
+	/* the very first write always get COL_STS = 1 and ABRT_STS = 1, so try another time */
 	i = 2;
 	do {
 		ret = smbus_write_byte(SMBUS_HUB, 0x01, device);
@@ -82,19 +82,19 @@
 void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 {
 	static const uint16_t spd_addr[] = {
-			//first node
+			/* first node */
 			RC0|DIMM0, RC0|DIMM2, 0, 0,
 			RC0|DIMM1, RC0|DIMM3, 0, 0,
 #if CONFIG_MAX_PHYSICAL_CPUS > 1
-			//second node
+			/* second node */
 			RC1|DIMM0, RC1|DIMM2, RC1|DIMM4, RC1|DIMM6,
 			RC1|DIMM1, RC1|DIMM3, RC1|DIMM5, RC1|DIMM7,
 #endif
 #if CONFIG_MAX_PHYSICAL_CPUS > 2
-			// third node
+			/*  third node */
 			RC2|DIMM0, RC2|DIMM2, 0, 0,
 			RC2|DIMM1, RC2|DIMM3, 0, 0,
-			// four node
+			/*  four node */
 			RC3|DIMM0, RC3|DIMM2, RC3|DIMM4, RC3|DIMM6,
 			RC3|DIMM1, RC3|DIMM3, RC3|DIMM5, RC3|DIMM7,
 #endif
@@ -114,27 +114,21 @@
 	winbond_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
 	console_init();
 
-//	dump_mem(CONFIG_DCACHE_RAM_BASE+CONFIG_DCACHE_RAM_SIZE-0x200, CONFIG_DCACHE_RAM_BASE+CONFIG_DCACHE_RAM_SIZE);
-
 	/* Halt if there was a built in self test failure */
 	report_bist_failure(bist);
 
 	printk(BIOS_DEBUG, "*sysinfo range: [%p,%p]\n",sysinfo,sysinfo+1);
 
 	setup_mb_resource_map();
-#if 0
-	dump_pci_device(PCI_DEV(0, 0x18, 0));
-	dump_pci_device(PCI_DEV(0, 0x19, 0));
-#endif
 
 	printk(BIOS_DEBUG, "bsp_apicid=%02x\n", bsp_apicid);
 
-	set_sysinfo_in_ram(0); // in BSP so could hold all ap until sysinfo is in ram
-	setup_coherent_ht_domain(); // routing table and start other core0
+	set_sysinfo_in_ram(0); /* in BSP so could hold all ap until sysinfo is in ram */
+	setup_coherent_ht_domain(); /* routing table and start other core0 */
 
 	wait_all_core0_started();
 #if CONFIG_LOGICAL_CPUS
-	// It is said that we should start core1 after all core0 launched
+	/* It is said that we should start core1 after all core0 launched */
 	/* becase optimize_link_coherent_ht is moved out from setup_coherent_ht_domain,
 	 * So here need to make sure last core0 is started, esp for two way system,
 	 * (there may be apic id conflicts in that case)
@@ -144,13 +138,7 @@
 #endif
 
 	/* it will set up chains and store link pair for optimization later */
-	ht_setup_chains_x(sysinfo); // it will init sblnk and sbbusn, nodes, sbdn
-
-#if 0
-	//it your CPU min fid is 1G, you can change HT to 1G and FID to max one time.
-	needs_reset = optimize_link_coherent_ht();
-	needs_reset |= optimize_link_incoherent_ht(sysinfo);
-#endif
+	ht_setup_chains_x(sysinfo); /* it will init sblnk and sbbusn, nodes, sbdn */
 
 #if CONFIG_SET_FIDVID
 	/* Check to see if processor is capable of changing FIDVID  */
@@ -169,7 +157,7 @@
 	enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);
 	init_fidvid_bsp(bsp_apicid);
 
-	// show final fid and vid
+	/* show final fid and vid */
 	{
 		msr_t msr;
 		msr = rdmsr(0xc0010042);
@@ -185,7 +173,7 @@
 	needs_reset = optimize_link_coherent_ht();
 	needs_reset |= optimize_link_incoherent_ht(sysinfo);
 
-	// fidvid change will issue one LDTSTOP and the HT change will be effective too
+	/* fidvid change will issue one LDTSTOP and the HT change will be effective too */
 	if (needs_reset) {
 		printk(BIOS_INFO, "ht reset -\n");
 		soft_reset_x(sysinfo->sbbusn, sysinfo->sbdn);
@@ -193,36 +181,18 @@
 #endif
 	allow_all_aps_stop(bsp_apicid);
 
-	//It's the time to set ctrl in sysinfo now;
+	/* It's the time to set ctrl in sysinfo now; */
 	fill_mem_ctrl(sysinfo->nodes, sysinfo->ctrl, spd_addr);
 
 	enable_smbus();
 
-#if 0
-	int i;
-	for(i = 0; i < 4; i++) {
-		activate_spd_rom(&cpu[i]);
-		dump_smbus_registers();
-	}
-#endif
-
 	memreset_setup();
 
-	//do we need apci timer, tsc...., only debug need it for better output
+	/* do we need apci timer, tsc...., only debug need it for better output */
 	/* all ap stopped? */
-//	init_timer(); // Need to use TMICT to synchronize FID/VID
+	/* Need to use TMICT to synchronize FID/VID */
 
 	sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo);
 
-#if 0
-	print_pci_devices();
-#endif
-
-#if 0
-//	dump_pci_devices();
-	dump_pci_device_index_wait(PCI_DEV(0, 0x18, 2), 0x98);
-	dump_pci_device_index_wait(PCI_DEV(0, 0x19, 2), 0x98);
-#endif
-
-	post_cache_as_ram(); // bsp swtich stack to RAM and copy sysinfo RAM now
+	post_cache_as_ram(); /* bsp swtich stack to RAM and copy sysinfo RAM now */
 }