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soc/cavium: Enable DRAM test 

Enable fast or extended DRAM test based on devicetree setting.
The fast DRAM test takes less than a second, while the
extended runs about 1 minute.

Tested on Cavium Soc.

Change-Id: I6a375f3d4c5cea7c3c0cd4592287f3f85dc7d3cf
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/27103
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
This commit is contained in:
Patrick Rudolph 2018-06-14 15:11:57 +02:00 committed by Patrick Rudolph
parent de4410c51f
commit 3f4f5a34ed
2 changed files with 26 additions and 17 deletions
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1
src/mainboard/cavium/cn8100_sff_evb/bdk_devicetree.c
View File

@ -20,6 +20,7 @@
#include <bdk-devicetree.h>
const struct bdk_devicetree_key_value devtree[] = {
{"DDR-TEST-BOOT", "1"},
{"DDR-CONFIG-DQX-CTL", "0x4"},
{"DDR-CONFIG-WODT-MASK.RANKS2.DIMMS2", "0xc0c0303"},
{"DDR-CONFIG-WODT-MASK.RANKS4.DIMMS1", "0x1030203"},

42
src/soc/cavium/cn81xx/sdram.c
View File

@ -58,30 +58,38 @@ void sdram_init(void)
/* See if we should test this node's DRAM during boot */
int test_dram = bdk_config_get_int(BDK_CONFIG_DRAM_BOOT_TEST, 0);
if (test_dram) {
if (test_dram == 1) {
static const u8 tests[] = {13, 0, 1};
for (size_t i = 0; i < ARRAY_SIZE(tests); i++) {
/* Run the address test to make sure DRAM works */
if (bdk_dram_test(13, 0, 0x10000000000ull, BDK_DRAM_TEST_NO_STATS | (1<<0))) {
if (bdk_dram_test(tests[i], 4 * MiB,
sdram_size_mb() * MiB - 4 * MiB,
BDK_DRAM_TEST_NO_STATS |
BDK_DRAM_TEST_NODE0)) {
printk(BIOS_CRIT, "%s: Failed DRAM test.\n",
__func__);
}
bdk_watchdog_poke();
}
} else {
/* Run the address test to make sure DRAM works */
if (bdk_dram_test(13, 4 * MiB,
sdram_size_mb() * MiB - 4 * MiB,
BDK_DRAM_TEST_NO_STATS |
BDK_DRAM_TEST_NODE0)) {
/**
* FIXME(dhendrix): This should be handled by mainboard code since we
* don't necessarily have a BMC to report to. Also, we need to figure out
* if we need to keep going as to avoid getting into a boot loop.
* FIXME(dhendrix): This should be handled by mainboard
* code since we don't necessarily have a BMC to report
* to. Also, we need to figure out if we need to keep
* going as to avoid getting into a boot loop.
*/
// bdk_boot_status(BDK_BOOT_STATUS_REQUEST_POWER_CYCLE);
printk(BIOS_ERR, "%s: Failed DRAM test.\n", __func__);
printk(BIOS_CRIT, "%s: Failed DRAM test.\n", __func__);
}
bdk_watchdog_poke();
/* Put other node core back in reset */
if (0 != bdk_numa_master())
BDK_CSR_WRITE(0, BDK_RST_PP_RESET, -1);
/* Clear DRAM */
uint64_t skip = 0;
if (0 == bdk_numa_master())
skip = bdk_dram_get_top_of_bdk();
void *base = bdk_phys_to_ptr(bdk_numa_get_address(0, skip));
bdk_zero_memory(base, ((uint64_t)mbytes << 20) - skip);
bdk_watchdog_poke();
}
bdk_watchdog_poke();
/* Unlock L2 now that DRAM works */
if (0 == bdk_numa_master()) {
uint64_t l2_size = bdk_l2c_get_cache_size_bytes(0);