[coreboot-gerrit] Change in coreboot[master]: soc/intel/jasperlake: [TEST-ONLY] SPI read CAR test

[Aamir Bohra (Code Review)]

Aamir Bohra has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/47788 )

Change subject: soc/intel/jasperlake: [TEST-ONLY] SPI read CAR test
......................................................................

soc/intel/jasperlake: [TEST-ONLY] SPI read CAR test

Change-Id: I4813572a31240b2796cacfa97044f9ed091ec108
Signed-off-by: Aamir Bohra 
---
M src/soc/intel/jasperlake/bootblock/bootblock.c
1 file changed, 29 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/88/47788/1

diff --git a/src/soc/intel/jasperlake/bootblock/bootblock.c b/src/soc/intel/jasperlake/bootblock/bootblock.c
index 96e6268..a1254cf 100644
--- a/src/soc/intel/jasperlake/bootblock/bootblock.c
+++ b/src/soc/intel/jasperlake/bootblock/bootblock.c
@@ -1,10 +1,13 @@
 /* SPDX-License-Identifier: GPL-2.0-only */

#include <bootblock_common.h>
+#include <console/console.h>
 #include <intelblocks/systemagent.h>
 #include <intelblocks/tco.h>
 #include <intelblocks/uart.h>
 #include <soc/bootblock.h>
+#include <string.h>
+

asmlinkage void bootblock_c_entry(uint64_t base_timestamp)
 {
@@ -22,6 +25,31 @@
    	uart_bootblock_init();
 }

+static void report_cache_info(void)
+{
+       struct cpuid_result res;
+       uintptr_t addr = 0xFF000000;
+       char buf[1024];
+       uint32_t kbcount=0;
+       res = cpuid_ext(0x04, 0x03);
+       const size_t assoc = CPUID_CACHE_WAYS_OF_ASSOC(res) + 1;
+       const size_t partitions = CPUID_CACHE_PHYS_LINE(res) + 1;
+       const size_t cache_line_size = CPUID_CACHE_COHER_LINE(res) + 1;
+       const size_t number_of_sets = CPUID_CACHE_NO_OF_SETS(res) + 1;
+       const size_t cache_size = assoc * partitions * cache_line_size * number_of_sets;
+       printk(BIOS_INFO, "assoc=%zd par=%zd line_size=%zd sets=%zd\n",
+              assoc, partitions, cache_line_size, number_of_sets);
+       printk(BIOS_INFO, "@@ dedede cache_size 0x%lx bytes\n", cache_size);
+
+       while (addr < 0xFFFF0000) {
+               memcpy(buf, (void *)addr, 1024);
+               printk(BIOS_ERR, "TEST : %lx %x  KBcount : %d \n", addr, buf[0], kbcount);
+               addr += 1024;
+               ++kbcount;
+       }
+
+}
+
 void bootblock_soc_init(void)
 {
    report_platform_info();
@@ -29,4 +57,5 @@

/* Programming TCO_BASE_ADDRESS and TCO Timer Halt */
    tco_configure();
+	report_cache_info();
 }