Signed-off-by: Steven Stallion <sstall...@gmail.com>
Cc: Tom Rini <tr...@ti.com>
---
This patch adds support for Plan 9 from Bell Labs kernel images.
Changes for v2:
- Combined previous patches for image and bootm
common/cmd_bootm.c | 39 +++++++++++++++++++++++++++++++++++++++
common/image.c | 1 +
include/config_defaults.h | 1 +
include/image.h | 1 +
4 files changed, 42 insertions(+)
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 5d2ce00..7438469 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -128,6 +128,9 @@ static boot_os_fn do_bootm_rtems;
#if defined(CONFIG_BOOTM_OSE)
static boot_os_fn do_bootm_ose;
#endif
+#if defined(CONFIG_BOOTM_PLAN9)
+static boot_os_fn do_bootm_plan9;
+#endif
#if defined(CONFIG_CMD_ELF)
static boot_os_fn do_bootm_vxworks;
static boot_os_fn do_bootm_qnxelf;
@@ -154,6 +157,9 @@ static boot_os_fn *boot_os[] = {
#if defined(CONFIG_BOOTM_OSE)
[IH_OS_OSE] = do_bootm_ose,
#endif
+#if defined(CONFIG_BOOTM_PLAN9)
+ [IH_OS_PLAN9] = do_bootm_plan9,
+#endif
#if defined(CONFIG_CMD_ELF)
[IH_OS_VXWORKS] = do_bootm_vxworks,
[IH_OS_QNX] = do_bootm_qnxelf,
@@ -1628,6 +1634,39 @@ static int do_bootm_ose(int flag, int argc, char * const
argv[],
}
#endif /* CONFIG_BOOTM_OSE */
+#if defined(CONFIG_BOOTM_PLAN9)
+static int do_bootm_plan9(int flag, int argc, char * const argv[],
+ bootm_headers_t *images)
+{
+ void (*entry_point)(void);
+
+ if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
+ return 1;
+
+#if defined(CONFIG_FIT)
+ if (!images->legacy_hdr_valid) {
+ fit_unsupported_reset("Plan 9");
+ return 1;
+ }
+#endif
+
+ entry_point = (void (*)(void))images->ep;
+
+ printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
+ (ulong)entry_point);
+
+ bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+
+ /*
+ * Plan 9 Parameters:
+ * None
+ */
+ (*entry_point)();
+
+ return 1;
+}
+#endif /* CONFIG_BOOTM_PLAN9 */
+
#if defined(CONFIG_CMD_ELF)
static int do_bootm_vxworks(int flag, int argc, char * const argv[],
bootm_headers_t *images)
diff --git a/common/image.c b/common/image.c
index 6afbb40..60c2127 100644
--- a/common/image.c
+++ b/common/image.c
@@ -108,6 +108,7 @@ static const table_entry_t uimage_os[] = {
#endif
{ IH_OS_NETBSD, "netbsd", "NetBSD", },
{ IH_OS_OSE, "ose", "Enea OSE", },
+ { IH_OS_PLAN9, "plan9", "Plan 9", },
{ IH_OS_RTEMS, "rtems", "RTEMS", },
{ IH_OS_U_BOOT, "u-boot", "U-Boot", },
#if defined(CONFIG_CMD_ELF) || defined(USE_HOSTCC)
diff --git a/include/config_defaults.h b/include/config_defaults.h
index d023c63..567b46c 100644
--- a/include/config_defaults.h
+++ b/include/config_defaults.h
@@ -12,6 +12,7 @@
/* Support bootm-ing different OSes */
#define CONFIG_BOOTM_LINUX 1
#define CONFIG_BOOTM_NETBSD 1
+#define CONFIG_BOOTM_PLAN9 1
#define CONFIG_BOOTM_RTEMS 1
#define CONFIG_GZIP 1
diff --git a/include/image.h b/include/image.h
index 8e285f9..4ad0e6b 100644
--- a/include/image.h
+++ b/include/image.h
@@ -84,6 +84,7 @@
#define IH_OS_UNITY 20 /* Unity OS */
#define IH_OS_INTEGRITY 21 /* INTEGRITY */
#define IH_OS_OSE 22 /* OSE */
+#define IH_OS_PLAN9 23 /* Plan 9 */
/*
* CPU Architecture Codes (supported by Linux)
--
1.8.2
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