[Skiboot] [PATCH] hdata: Add BMC device-tree node for P9 OpenPOWER systems
Ananth N Mavinakayanahalli
ananth at linux.vnet.ibm.com
Fri Mar 3 22:48:18 AEDT 2017
On P8 Hostboot creates the node. On P9, OPAL needs to create the node. BMC
information available in HDAT's SPINFO section.
Signed-off-by: Ananth N Mavinakayanahalli <ananth at linux.vnet.ibm.com>
---
hdata/fsp.c | 17 ++++++++++++++++-
hdata/spira.h | 1 +
2 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/hdata/fsp.c b/hdata/fsp.c
index f44f6a9..3896dc4 100644
--- a/hdata/fsp.c
+++ b/hdata/fsp.c
@@ -279,11 +279,26 @@ static void add_uart(const struct spss_iopath *iopath, struct dt_node *lpc)
static void bmc_create_node(const struct HDIF_common_hdr *sp)
{
+ struct dt_node *bmc_node;
u32 fw_bar, io_bar, mem_bar, internal_bar;
const struct spss_iopath *iopath;
+ const struct spss_sp_impl *sp_impl;
struct dt_node *lpcm, *lpc, *n;
u64 lpcm_base, lpcm_end;
- int chip_id;
+ int chip_id, size;
+
+ bmc_node = dt_new(dt_root, "bmc");
+ assert(bmc_node);
+
+ dt_add_property_cells(bmc_node, "#address-cells", 1);
+ dt_add_property_cells(bmc_node, "#size-cells", 0);
+
+ /* TODO: add sensor info under /bmc */
+ sp_impl = HDIF_get_idata(sp, SPSS_IDATA_SP_IMPL, &size);
+ if (CHECK_SPPTR(sp_impl) && (size > 8)) {
+ dt_add_property_strings(bmc_node, "compatible", sp_impl->sp_family);
+ prlog(PR_INFO, "SP Family is %s\n", sp_impl->sp_family);
+ }
iopath = HDIF_get_iarray_item(sp, SPSS_IDATA_SP_IOPATH, 0, NULL);
diff --git a/hdata/spira.h b/hdata/spira.h
index 01ce4cb..a9338ee 100644
--- a/hdata/spira.h
+++ b/hdata/spira.h
@@ -262,6 +262,7 @@ struct spss_sp_impl {
#define SPSS_SP_IMPL_FLAGS_PRIMARY 0x2000
u8 chip_version;
u8 reserved;
+ u8 sp_family[64];
};
/* Idata index 3 is deprecated */
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