[coreboot-gerrit] Patch set updated 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 b888df5acc201e157c7bb411974d09a992c06837
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 | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/util/amdfwtool/amdfwtool.c b/util/amdfwtool/amdfwtool.c
index 92a53fc..073c138 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       |Look up mode|
  *  +------------+---------------+----------------+------------+
@@ -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;
@@ -534,9 +542,11 @@ 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)) { */
+			/* Now the psp2dir is psp combo dir. */
    		psp2dir[psp2count*4 + 0] = 0; /* 0 -Compare PSP ID, 1 -Compare chip family ID */
    		psp2dir[psp2count*4 + 1] = 0x10220B00; /* TODO: PSP ID. Documentation is needed. */
    		psp2dir[psp2count*4 + 2] = current + ROM_BASE_ADDRESS;
@@ -550,11 +560,17 @@ int main(int argc, char **argv)
    		fill_psp_head(pspdir, count);
    		/* } */ /* End of loop */

-			/* fill the PSP2 head */
+			/* fill the PSP combo head */
    		psp2dir[0] = 0x50535032;  /* 'PSP2' */
    		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
    }