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| author | Oliver O'Halloran <oohall@gmail.com> | 2017-01-13 17:56:20 +1100 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-01-16 10:55:11 +1100 |
| commit | 690f9da985b5f40d4f87ff161d43fd6989f6495c (patch) | |
| tree | 250f43ee432234f6a265b08c5a4e24f9bbccb121 /hdata/spira.h | |
| parent | 7c860f25e4e44b046ee44eac9e2e0834fd4a3dbc (diff) | |
| download | skiboot-690f9da985b5f40d4f87ff161d43fd6989f6495c.zip skiboot-690f9da985b5f40d4f87ff161d43fd6989f6495c.tar.gz skiboot-690f9da985b5f40d4f87ff161d43fd6989f6495c.tar.bz2 | |
hdat: Add BMC and LPC IOPATH support
BMC based systems use the LPC bus for communicating between the host and
service processor. This is represented as a "SP IOPATH" in the HDAT and
this patch adds parsing and generation of the devicetree entries to
describe this.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'hdata/spira.h')
| -rw-r--r-- | hdata/spira.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/hdata/spira.h b/hdata/spira.h index 4e03577..7fbf02c 100644 --- a/hdata/spira.h +++ b/hdata/spira.h @@ -273,6 +273,7 @@ struct spss_iopath { __be16 iopath_type; #define SPSS_IOPATH_TYPE_IOHUB_PHB 0x0001 #define SPSS_IOPATH_TYPE_PSI 0x0002 +#define SPSS_IOPATH_TYPE_LPC 0x0003 union { struct { __be16 iohub_chip_inst; @@ -293,6 +294,40 @@ struct spss_iopath { __be32 reserved2; __be64 gxhb_base; } __packed psi; + + struct { /* only populated after version 0x30 */ + __be16 link_status; +#define LPC_STATUS_STUFFED 0x0000 +#define LPC_STATUS_ACTIVE 0x0001 + uint8_t ml2_version; + uint8_t reserved[3]; + __be32 chip_id; + + __be32 io_bar; + __be32 memory_bar; + __be32 firmware_bar; + __be32 internal_bar; + + __be32 reserved2; + + __be64 uart_base; + __be32 uart_size; + __be32 uart_clk; /* UART baud clock in Hz */ + __be32 uart_baud; /* UART baud rate */ + + uint8_t uart_int_number; + uint8_t uart_int_type; +#define UART_INT_LVL_LOW 0x1 +#define UART_INT_RISING 0x2 +#define UART_INT_LVL_HIGH 0x3 + uint8_t reserved3[2]; + + __be64 bt_base; + __be32 bt_size; + uint8_t bt_sms_int_num; + uint8_t bt_bmc_response_int_num; + uint8_t reserved4[2]; + } __packed lpc; }; } __packed; |