[coreboot-gerrit] New patch to review for coreboot: amdfwtool: Postpone the usage of PSP combo directory

[Zheng Bao]

Zheng Bao ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13739

-gerrit

commit 09fa3470918b1fb8943b666d6a461b49e2f5a79a
Author: zbao 
Date:   Fri Feb 19 13:47:31 2016 +0800

amdfwtool: Postpone the usage of PSP combo directory

If we only need to "combo" two PSP directories into one image,
    we can put first address in romsig 0x10 and second one in
    romsig 0x14.

If we really need to put three, the 0x14 is the combo directory
    which points to multiple level-2 PSP directories.

I guess that two PSP can also use combo directory, with only
    one level-2 directory. But nobody seems to do that.

Change-Id: Ic450a846bc04db90a75cd417b6d7104fe2a5b177
    Signed-off-by: Zheng Bao 
---
 util/amdfwtool/amdfwtool.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/util/amdfwtool/amdfwtool.c b/util/amdfwtool/amdfwtool.c
index 3b316f3..676db86 100644
--- a/util/amdfwtool/amdfwtool.c
+++ b/util/amdfwtool/amdfwtool.c
@@ -15,11 +15,12 @@

/*
  *  ROMSIG At ROMBASE + 0x20000:
+ *  0            4               8                C
  *  +------------+---------------+----------------+------------+
  *  | 0x55AA55AA |EC ROM Address |GEC ROM Address |USB3 ROM    |
  *  +------------+---------------+----------------+------------+
- *  | PSPDIR ADDR|PSP2DIR ADDR   |
- *  +------------+---------------+
+ *  | PSPDIR ADDR|PSPDIR ADDR    |<-- Field 0x14 could be either
+ *  +------------+---------------+   2nd PSP directory or PSP COMBO directory
  *  EC ROM should be 64K aligned.
  *
  *  PSP directory (Where "PSPDIR ADDR" points)
@@ -41,7 +42,7 @@
  *  |                                                          |
  *  +------------+---------------+----------------+------------+
  *
- *  PSP2 directory
+ *  PSP Combo directory
  *  +------------+---------------+----------------+------------+
  *  | 'PSP2'     | Fletcher      |    Count       | Reserved   |
  *  +------------+---------------+----------------+------------+
@@ -81,6 +82,13 @@
   kinds of APU.
 */
 #define PSP2 1
+#if PSP2
+/* Use PSP combo directory or not.
+ * Currently we dont have to squeeze 3 PSP directories into 1 image. So
+ * we skip the combo directory.
+ */
+   #define PSP_COMBO 0
+#endif

typedef unsigned int uint32_t;
 typedef unsigned char uint8_t;
@@ -534,6 +542,7 @@ int main(int argc, char **argv)
    		amd_romsig[5] = current + ROM_BASE_ADDRESS;
    		current += 0x100;	/* Add conservative size of psp2dir. */

+			#if PSP_COMBO
    		/* TODO: remove the hardcode. */
    		psp2count = 1;		/* Start from 1. */
    		/* for (; psp2count <= PSP2COUNT; psp2count++, current=ALIGN(current, 0x100)) { */
@@ -555,6 +564,12 @@ int main(int argc, char **argv)
    		psp2dir[2] = psp2count;		  /* Count */
    		psp2dir[3] = 0;		/* 0-Dynamic look up through all entries, 1-PSP/chip ID match */
    		psp2dir[1] = fletcher32((uint16_t *)&psp2dir[1], (psp2count*16 + 16)/2 - 2);
+			#else
+			for (count = 0; count < sizeof(amd_psp2_fw_table) / sizeof(amd_fw_entry); count ++) {
+				current = integerate_one_psp(rom, current, psp2dir, count);
+			}
+			fill_psp_head(psp2dir, count);
+			#endif
    	}
 #endif
    }