[coreboot-gerrit] Change in coreboot[master]: arch/x86: Reserve space for EC SMSC KBC1098/KBC1126

[Bill XIE (Code Review)]

Attention is currently required from: Julius Werner.
Bill XIE has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/51671 )

Change subject: arch/x86: Reserve space for EC SMSC KBC1098/KBC1126
......................................................................

arch/x86: Reserve space for EC SMSC KBC1098/KBC1126

According to util/kbc1126/README.md, for these ECs to work, the
address and size of their two firmware should be written to $s-0x100`
(`$s` means the image size, done with kbc1126_ec_insert), which means
that every existing section (especially those used to store code)
should not overlap this address, otherwise the bootblock will get
damaged when inserting firmwares of the EC.

Signed-off-by: Bill XIE 
Change-Id: I4f0de0c4d7283e630242fbe84a46e0547783c49e
---
M src/arch/x86/bootblock.ld
1 file changed, 5 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/71/51671/1

diff --git a/src/arch/x86/bootblock.ld b/src/arch/x86/bootblock.ld
index 3cd0900..37367c9 100644
--- a/src/arch/x86/bootblock.ld
+++ b/src/arch/x86/bootblock.ld
@@ -30,8 +30,12 @@
     * address gets applied.
     */
    PROGRAM_SZ = SIZEOF(.text) + 512;
-
+#if CONFIG(EC_HP_KBC1126)
+	_KBC1126_FW_LOCATIONS = 0xffffff00;
+	. = MIN(_KBC1126_FW_LOCATIONS, MIN(_ID_SECTION, _FIT_POINTER)) - EARLYASM_SZ;
+#else
    . = MIN(_ID_SECTION, _FIT_POINTER) - EARLYASM_SZ;
+#endif
    . = CONFIG(SIPI_VECTOR_IN_ROM) ? ALIGN(4096) : ALIGN(16);
    BOOTBLOCK_TOP = .;
    .init (.) : {