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authorRonald G. Minnich <rminnich@gmail.com>2014-11-26 19:25:47 +0000
committerRonald G. Minnich <rminnich@gmail.com>2014-12-01 19:06:43 +0100
commite0e784a456c4d64e5e88ce578371fe6c538db559 (patch)
tree7557a07ab68659eaf81ac50fc860a288055e0845 /src/soc/ucb
parent796fe068d3c47f873b82c65cc0591f88f87b0a85 (diff)
downloadcoreboot-e0e784a456c4d64e5e88ce578371fe6c538db559.tar.xz
Add UCB RISCV support for architecture, soc, and emulation mainboard..
Works in the RISCV version of QEMU. Note that the lzmadecode is so unclean that it needs a lot of work. A cleanup is in progress. We decided in Prague to do this as one thing, because it forms a nice case study of the bare minimum you need to add to get a new architecture going in qemu. Change-Id: If5af15c3a70733d219973e0d032746f8ab027e4d Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/7584 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/soc/ucb')
-rw-r--r--src/soc/ucb/Kconfig1
-rw-r--r--src/soc/ucb/Makefile.inc1
-rw-r--r--src/soc/ucb/riscv/Kconfig11
-rw-r--r--src/soc/ucb/riscv/Makefile.inc3
-rw-r--r--src/soc/ucb/riscv/cbmem.c24
5 files changed, 40 insertions, 0 deletions
diff --git a/src/soc/ucb/Kconfig b/src/soc/ucb/Kconfig
new file mode 100644
index 0000000000..7af50cb87a
--- /dev/null
+++ b/src/soc/ucb/Kconfig
@@ -0,0 +1 @@
+source src/soc/ucb/riscv/Kconfig
diff --git a/src/soc/ucb/Makefile.inc b/src/soc/ucb/Makefile.inc
new file mode 100644
index 0000000000..35bc72871c
--- /dev/null
+++ b/src/soc/ucb/Makefile.inc
@@ -0,0 +1 @@
+subdirs-$(CONFIG_CPU_UCB_RISCV) += riscv
diff --git a/src/soc/ucb/riscv/Kconfig b/src/soc/ucb/riscv/Kconfig
new file mode 100644
index 0000000000..d1e4ba7560
--- /dev/null
+++ b/src/soc/ucb/riscv/Kconfig
@@ -0,0 +1,11 @@
+config SOC_UCB_RISCV
+ select ARCH_RISCV
+ select ARCH_BOOTBLOCK_RISCV
+ select ARCH_ROMSTAGE_RISCV
+ select ARCH_RAMSTAGE_RISCV
+ bool
+ default n
+
+if SOC_UCB_RISCV
+
+endif
diff --git a/src/soc/ucb/riscv/Makefile.inc b/src/soc/ucb/riscv/Makefile.inc
new file mode 100644
index 0000000000..c25a2fccdb
--- /dev/null
+++ b/src/soc/ucb/riscv/Makefile.inc
@@ -0,0 +1,3 @@
+romstage-y += cbmem.c
+
+ramstage-y += cbmem.c
diff --git a/src/soc/ucb/riscv/cbmem.c b/src/soc/ucb/riscv/cbmem.c
new file mode 100644
index 0000000000..9c3ee989a6
--- /dev/null
+++ b/src/soc/ucb/riscv/cbmem.c
@@ -0,0 +1,24 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * 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 <cbmem.h>
+
+void *cbmem_top(void)
+{
+ // TODO: find out how RISCV stores this.
+ return (void *)0x1fff000;
+}