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authorTom Warren <twarren@nvidia.com>2014-07-16 09:03:45 -0700
committerMarc Jones <marc.jones@se-eng.com>2015-03-13 00:04:03 +0100
commit31818c98afae06ba77df383bfa013f9ede16430d (patch)
treec24c1dbd7a093bd3d22063f0dcd0f71926f8a3bb /src/soc
parent01dde90eb9c070018fc11b007159c8d130b2809d (diff)
ryu: Add support for full LPDDR3 SDRAM BCT init via BootROM
Once LPDDR3 init is supported in the ryu romstage, this can be reverted. Note that this 528MHz BCT has been pre-qualed by NVIDIA AE's, but will be updated as more tuning is done. BUG=none BRANCH=none TEST=Builds, BCT is in binary, but I have no HW here to test on Original-Change-Id: I315a9a5d56290bb5f51863b15053d2171db7b1e4 Original-Signed-off-by: Tom Warren <twarren@nvidia.com> Original-Reviewed-on: https://chromium-review.googlesource.com/208384 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> (cherry picked from commit 660e40cb473d47ce763e79d6061367bf381a1c48) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I29ad31fc83f45ca8f92809a7dc252cf984c8c6fe Reviewed-on: http://review.coreboot.org/8643 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/soc')
-rw-r--r--src/soc/nvidia/tegra132/Kconfig6
-rw-r--r--src/soc/nvidia/tegra132/romstage.c6
2 files changed, 11 insertions, 1 deletions
diff --git a/src/soc/nvidia/tegra132/Kconfig b/src/soc/nvidia/tegra132/Kconfig
index 8a5d087a7f..0ce29a03fa 100644
--- a/src/soc/nvidia/tegra132/Kconfig
+++ b/src/soc/nvidia/tegra132/Kconfig
@@ -99,4 +99,10 @@ config TRUSTZONE_CARVEOUT_SIZE_MB
help
Size of Trust Zone area in MiB to reserve in memory map.
+config BOOTROM_SDRAM_INIT
+ bool "SoC BootROM does SDRAM init with full BCT"
+ default n
+ help
+ Use during Ryu LPDDR3 bringup
+
endif
diff --git a/src/soc/nvidia/tegra132/romstage.c b/src/soc/nvidia/tegra132/romstage.c
index e7e545d002..2a1bd46d07 100644
--- a/src/soc/nvidia/tegra132/romstage.c
+++ b/src/soc/nvidia/tegra132/romstage.c
@@ -38,9 +38,13 @@ void romstage(void)
printk(BIOS_INFO, "T132: romstage here\n");
+#if CONFIG_BOOTROM_SDRAM_INIT
+ printk(BIOS_INFO, "T132 romstage: SDRAM init done by BootROM, RAMCODE = %d\n",
+ sdram_get_ram_code());
+#else
sdram_init(get_sdram_config());
printk(BIOS_INFO, "T132 romstage: sdram_init done\n");
-
+#endif
cbmem_initialize();
ccplex_cpu_prepare();