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sb/amd/sb700/lpc.c: Optimize code flow for less indentation

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This changes the code flow so less indentation has to be used.

This also changes some lines to limit their length.

Change-Id: I50ca99a759a276e9d49327c6ae6c69eeab2a8c90
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/21234
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Arthur Heymans 2017-08-28 13:00:24 +02:00
parent 6af8aab539
commit 0315b6740a
1 changed files with 74 additions and 72 deletions
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146
src/southbridge/amd/sb700/lpc.c
View file

@ -144,83 +144,85 @@ static void sb700_lpc_enable_childrens_resources(device_t dev)
device_t child; device_t child;
for (child = link->children; child; for (child = link->children; child;
child = child->sibling) { child = child->sibling) {
if (child->enabled if (!(child->enabled
&& (child->path.type == DEVICE_PATH_PNP)) { && (child->path.type == DEVICE_PATH_PNP)))
struct resource *res; continue;
for (res = child->resource_list; res; res = res->next) {
u32 base, end; /* don't need long long */ struct resource *res;
if (!(res->flags & IORESOURCE_IO)) for (res = child->resource_list; res; res = res->next) {
u32 base, end; /* don't need long long */
if (!(res->flags & IORESOURCE_IO))
continue;
base = res->base;
end = resource_end(res);
printk(BIOS_DEBUG, "sb700 lpc decode:%s,"
" base=0x%08x, end=0x%08x\n",
dev_path(child), base, end);
switch (base) {
case 0x60: /* KB */
case 0x64: /* MS */
reg |= (1 << 29);
break;
case 0x3f8: /* COM1 */
reg |= (1 << 6);
break;
case 0x2f8: /* COM2 */
reg |= (1 << 7);
break;
case 0x378: /* Parallel 1 */
reg |= (1 << 0);
reg |= (1 << 1); /* + 0x778 for ECP */
break;
case 0x3f0: /* FD0 */
reg |= (1 << 26);
break;
case 0x220: /* Audio 0 */
reg |= (1 << 8);
break;
case 0x300: /* Midi 0 */
reg |= (1 << 18);
break;
case 0x400:
reg_x |= (1 << 16);
break;
case 0x480:
reg_x |= (1 << 17);
break;
case 0x500:
reg_x |= (1 << 18);
break;
case 0x580:
reg_x |= (1 << 19);
break;
case 0x4700:
reg_x |= (1 << 22);
break;
case 0xfd60:
reg_x |= (1 << 23);
break;
default:
/* only 3 var ; compact them ? */
if (var_num >= 3)
continue; continue;
base = res->base; switch (var_num) {
end = resource_end(res); case 0:
printk(BIOS_DEBUG, "sb700 lpc decode:%s, base=0x%08x, end=0x%08x\n", reg_x |= (1 << 2);
dev_path(child), base, end); if ((end - base) < 16)
switch (base) { wiosize |= (1 << 0);
case 0x60: /* KB */
case 0x64: /* MS */
reg |= (1 << 29);
break; break;
case 0x3f8: /* COM1 */ case 1:
reg |= (1 << 6); reg_x |= (1 << 24);
if ((end - base) < 16)
wiosize |= (1 << 2);
break; break;
case 0x2f8: /* COM2 */ case 2:
reg |= (1 << 7); reg_x |= (1 << 25);
reg_x |= (1 << 24);
if ((end - base) < 16)
wiosize |= (1 << 3);
break; break;
case 0x378: /* Parallel 1 */
reg |= (1 << 0);
reg |= (1 << 1); /* + 0x778 for ECP */
break;
case 0x3f0: /* FD0 */
reg |= (1 << 26);
break;
case 0x220: /* Audio 0 */
reg |= (1 << 8);
break;
case 0x300: /* Midi 0 */
reg |= (1 << 18);
break;
case 0x400:
reg_x |= (1 << 16);
break;
case 0x480:
reg_x |= (1 << 17);
break;
case 0x500:
reg_x |= (1 << 18);
break;
case 0x580:
reg_x |= (1 << 19);
break;
case 0x4700:
reg_x |= (1 << 22);
break;
case 0xfd60:
reg_x |= (1 << 23);
break;
default:
if (var_num >= 3)
continue; /* only 3 var ; compact them ? */
switch (var_num) {
case 0:
reg_x |= (1 << 2);
if ((end - base) < 16)
wiosize |= (1 << 0);
break;
case 1:
reg_x |= (1 << 24);
if ((end - base) < 16)
wiosize |= (1 << 2);
break;
case 2:
reg_x |= (1 << 25);
reg_x |= (1 << 24);
if ((end - base) < 16)
wiosize |= (1 << 3);
break;
}
reg_var[var_num++] =
base & 0xffff;
} }
reg_var[var_num++] = base & 0xffff;
} }
} }
} }