Change in coreboot[master]: northbridge/amd/amdfam10/bootblock.c: Get rid of preprocessor IFs

[Michał Żygowski (Code Review)]

Michał Żygowski has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/62091 )

Change subject: northbridge/amd/amdfam10/bootblock.c: Get rid of preprocessor IFs
......................................................................

northbridge/amd/amdfam10/bootblock.c: Get rid of preprocessor IFs

Signed-off-by: Michał Żygowski 
Change-Id: I96a64a1d35936f400433976a45bbee09b3792b19
---
M src/northbridge/amd/amdfam10/bootblock.c
1 file changed, 36 insertions(+), 32 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/91/62091/1

diff --git a/src/northbridge/amd/amdfam10/bootblock.c b/src/northbridge/amd/amdfam10/bootblock.c
index 3fb2c94..f504355 100644
--- a/src/northbridge/amd/amdfam10/bootblock.c
+++ b/src/northbridge/amd/amdfam10/bootblock.c
@@ -23,8 +23,11 @@
 // mmconf is not ready yet
 static void set_bsp_node_CHtExtNodeCfgEn(void)
 {
-#if CONFIG(EXT_RT_TBL_SUPPORT)
    u32 dword;
+
+	if (!CONFIG(EXT_RT_TBL_SUPPORT))
+		return;
+
    dword = pci_io_read_config32(PCI_DEV(0, 0x18, 0), 0x68);
    dword |= (1<<27) | (1<<25);
    /* CHtExtNodeCfgEn: coherent link extended node configuration enable,
@@ -37,14 +40,16 @@
    /* CHtExtAddrEn */
    pci_io_write_config32(PCI_DEV(0, 0x18, 0), 0x68, dword);
    // CPU on bus 0xff and 0xfe now. For now on we can use CONFIG_CBB and CONFIG_CDB.
-#endif
 }

static void enumerate_ht_chain(void)
 {
-#if CONFIG_HT_CHAIN_UNITID_BASE != 0
-/* CONFIG_HT_CHAIN_UNITID_BASE could be 0 (only one ht device in the ht chain),
-   if so, don't need to go through the chain  */
+
+	/* CONFIG_HT_CHAIN_UNITID_BASE could be 0 (only one ht device in the ht chain),
+	 * if so, don't need to go through the chain
+	 */
+	if (CONFIG_HT_CHAIN_UNITID_BASE == 0)
+		return;

/* Assumption the HT chain that is bus 0 has the HT I/O Hub on it.
     * On most boards this just happens.  If a CPU has multiple
@@ -52,14 +57,12 @@
     * links needs to be programed to point at bus 0.
     */
    unsigned int next_unitid, last_unitid = 0;
-#if CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20
    // let't record the device of last ht device, So we can set the
    // Unitid to CONFIG_HT_CHAIN_END_UNITID_BASE
    unsigned int real_last_unitid = 0;
    u8 real_last_pos = 0;
    int ht_dev_num = 0; // except host_bridge
    u8 end_used = 0;
-#endif

next_unitid = CONFIG_HT_CHAIN_UNITID_BASE;
    do {
@@ -101,23 +104,25 @@
    				unsigned int ctrl, ctrl_off;
    				pci_devfn_t devx;

-#if CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20
-					if (next_unitid >= 0x18) {
-						if (!end_used) {
-							next_unitid = CONFIG_HT_CHAIN_END_UNITID_BASE;
-							end_used = 1;
-						} else {
-							goto out;
+					if (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20) {
+						if (next_unitid >= 0x18) {
+							if (!end_used) {
+								next_unitid = CONFIG_HT_CHAIN_END_UNITID_BASE;
+								end_used = 1;
+							} else {
+								goto out;
+							}
    					}
+						real_last_unitid = next_unitid;
+						real_last_pos = pos;
+						ht_dev_num++;
    				}
-					real_last_unitid = next_unitid;
-					real_last_pos = pos;
-					ht_dev_num++;
-#endif
-		#if !CONFIG_HT_CHAIN_END_UNITID_BASE
-					if (!next_unitid)
-						goto out;
-		#endif
+
+					if (CONFIG_HT_CHAIN_END_UNITID_BASE == 0) {
+						if (!next_unitid)
+							goto out;
+					}
+
    				flags &= ~0x1f;
    				flags |= next_unitid & 0x1f;
    				count = (flags >> 5) & 0x1f;
@@ -163,17 +168,16 @@
    } while (last_unitid != next_unitid);

out:	;
-#if CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20
-	if ((ht_dev_num > 1) && (real_last_unitid != CONFIG_HT_CHAIN_END_UNITID_BASE) && !end_used) {
-		u16 flags;
-		flags = pci_io_read_config16(PCI_DEV(0,real_last_unitid,0), real_last_pos + PCI_CAP_FLAGS);
-		flags &= ~0x1f;
-		flags |= CONFIG_HT_CHAIN_END_UNITID_BASE & 0x1f;
-		pci_io_write_config16(PCI_DEV(0, real_last_unitid, 0), real_last_pos + PCI_CAP_FLAGS, flags);
+	if (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20) {
+		if ((ht_dev_num > 1) && 
+		    (real_last_unitid != CONFIG_HT_CHAIN_END_UNITID_BASE) && !end_used) {
+			u16 flags;
+			flags = pci_io_read_config16(PCI_DEV(0,real_last_unitid,0), real_last_pos + PCI_CAP_FLAGS);
+			flags &= ~0x1f;
+			flags |= CONFIG_HT_CHAIN_END_UNITID_BASE & 0x1f;
+			pci_io_write_config16(PCI_DEV(0, real_last_unitid, 0), real_last_pos + PCI_CAP_FLAGS, flags);
+		}
    }
-#endif
-
-#endif
 }

void bootblock_early_northbridge_init(void) {