tegra124: Add a stub implementation of the tegra124 SOC.
Most things still needs to be filled in, but this will allow us to build
boards which use this SOC.
BUG=None
TEST=With this and other changes, built for the nyan board.
BRANCH=None
Change-Id: Ic790685a78193ccb223f4d9355bd3db57812af39
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/170836
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
diff --git a/src/soc/Kconfig b/src/soc/Kconfig
index ac29205..3502204 100644
--- a/src/soc/Kconfig
+++ b/src/soc/Kconfig
@@ -1,3 +1,6 @@
if ARCH_X86
source src/soc/intel/Kconfig
endif
+if ARCH_ARMV7
+source src/soc/nvidia/Kconfig
+endif
diff --git a/src/soc/Makefile.inc b/src/soc/Makefile.inc
index fdf9db0..d419309 100644
--- a/src/soc/Makefile.inc
+++ b/src/soc/Makefile.inc
@@ -2,3 +2,4 @@
## Subdirectories
################################################################################
subdirs-y += intel
+subdirs-y += nvidia
diff --git a/src/soc/nvidia/Kconfig b/src/soc/nvidia/Kconfig
new file mode 100644
index 0000000..836edeb
--- /dev/null
+++ b/src/soc/nvidia/Kconfig
@@ -0,0 +1 @@
+source src/soc/nvidia/tegra124/Kconfig
diff --git a/src/soc/nvidia/Makefile.inc b/src/soc/nvidia/Makefile.inc
new file mode 100644
index 0000000..34feb0a
--- /dev/null
+++ b/src/soc/nvidia/Makefile.inc
@@ -0,0 +1 @@
+subdirs-$(CONFIG_SOC_NVIDIA_TEGRA124) += tegra124
diff --git a/src/soc/nvidia/tegra124/Kconfig b/src/soc/nvidia/tegra124/Kconfig
new file mode 100644
index 0000000..5d8fd4c
--- /dev/null
+++ b/src/soc/nvidia/tegra124/Kconfig
@@ -0,0 +1,42 @@
+config SOC_NVIDIA_TEGRA124
+ depends on ARCH_ARMV7
+ bool
+ default n
+
+if SOC_NVIDIA_TEGRA124
+
+config BOOTBLOCK_CPU_INIT
+ string
+ default "soc/nvidia/tegra124/bootblock.c"
+ help
+ CPU/SoC-specific bootblock code. This is useful if the
+ bootblock must load microcode or copy data from ROM before
+ searching for the bootblock.
+
+# ROM image layout.
+#
+# 0x00000 Combined bootblock and BCT blob
+# 0x18000 Master CBFS header.
+# 0x18080 Free for CBFS data.
+
+config BOOTBLOCK_ROM_OFFSET
+ hex
+ default 0x0
+
+config CBFS_HEADER_ROM_OFFSET
+ hex "offset of master CBFS header in ROM"
+ default 0x18000
+
+config CBFS_ROM_OFFSET
+ hex "offset of CBFS data in ROM"
+ default 0x18080
+
+config SYS_SDRAM_BASE
+ hex
+ default 0x80000000
+
+config BOOTBLOCK_BASE
+ hex
+ default 0x80000000
+
+endif
diff --git a/src/soc/nvidia/tegra124/Makefile.inc b/src/soc/nvidia/tegra124/Makefile.inc
new file mode 100644
index 0000000..49e2b1f
--- /dev/null
+++ b/src/soc/nvidia/tegra124/Makefile.inc
@@ -0,0 +1,9 @@
+bootblock-y += cbfs.c
+
+romstage-y += cbfs.c
+romstage-y += monotonic_timer.c
+romstage-y += timer.c
+
+ramstage-y += cbfs.c
+ramstage-y += monotonic_timer.c
+ramstage-y += timer.c
diff --git a/src/soc/nvidia/tegra124/bootblock.c b/src/soc/nvidia/tegra124/bootblock.c
new file mode 100644
index 0000000..a8d6990
--- /dev/null
+++ b/src/soc/nvidia/tegra124/bootblock.c
@@ -0,0 +1,23 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+void bootblock_cpu_init(void);
+void bootblock_cpu_init(void)
+{
+}
diff --git a/src/soc/nvidia/tegra124/cbfs.c b/src/soc/nvidia/tegra124/cbfs.c
new file mode 100644
index 0000000..ede9146
--- /dev/null
+++ b/src/soc/nvidia/tegra124/cbfs.c
@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+#include <cbfs.h> /* This driver serves as a CBFS media source. */
+
+int init_default_cbfs_media(struct cbfs_media *media)
+{
+ return -1;
+}
diff --git a/src/soc/nvidia/tegra124/monotonic_timer.c b/src/soc/nvidia/tegra124/monotonic_timer.c
new file mode 100644
index 0000000..3423dde
--- /dev/null
+++ b/src/soc/nvidia/tegra124/monotonic_timer.c
@@ -0,0 +1,24 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <timer.h>
+
+void timer_monotonic_get(struct mono_time *mt)
+{
+}
diff --git a/src/soc/nvidia/tegra124/timer.c b/src/soc/nvidia/tegra124/timer.c
new file mode 100644
index 0000000..83f499c
--- /dev/null
+++ b/src/soc/nvidia/tegra124/timer.c
@@ -0,0 +1,53 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <timer.h>
+#include <delay.h>
+#include <thread.h>
+
+void init_timer(void)
+{
+}
+
+/* delay x useconds */
+void udelay(unsigned usec)
+{
+ struct mono_time current, end;
+
+ if (!thread_yield_microseconds(usec))
+ return;
+
+ timer_monotonic_get(¤t);
+ end = current;
+ mono_time_add_usecs(&end, usec);
+
+ if (mono_time_after(¤t, &end)) {
+ printk(BIOS_EMERG, "udelay: 0x%08x is impossibly large\n",
+ usec);
+ /* There's not much we can do if usec is too big. Use a long,
+ * paranoid delay value and hope for the best... */
+ end = current;
+ mono_time_add_usecs(&end, USECS_PER_SEC);
+ }
+
+ while (mono_time_before(¤t, &end))
+ timer_monotonic_get(¤t);
+}
+
