diff options
Diffstat (limited to 'resources/libreboot/patch/kgpe-d16/0002-southbridge-amd-sb700-Allow-use-of-auxiliary-SMBUS-c.patch')
| -rw-r--r-- | resources/libreboot/patch/kgpe-d16/0002-southbridge-amd-sb700-Allow-use-of-auxiliary-SMBUS-c.patch | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/resources/libreboot/patch/kgpe-d16/0002-southbridge-amd-sb700-Allow-use-of-auxiliary-SMBUS-c.patch b/resources/libreboot/patch/kgpe-d16/0002-southbridge-amd-sb700-Allow-use-of-auxiliary-SMBUS-c.patch new file mode 100644 index 0000000..651c973 --- /dev/null +++ b/resources/libreboot/patch/kgpe-d16/0002-southbridge-amd-sb700-Allow-use-of-auxiliary-SMBUS-c.patch @@ -0,0 +1,187 @@ +From 6ae8695f880a4a15672eda801226b4b1c83aa1a8 Mon Sep 17 00:00:00 2001 +From: Timothy Pearson <tpearson@raptorengineeringinc.com> +Date: Sat, 17 Oct 2015 04:36:47 -0500 +Subject: [PATCH 002/139] southbridge/amd/sb700: Allow use of auxiliary SMBUS + controller + +Change-Id: I29ece10eeefc2c75a3829c169f1e1aede7194ec2 +Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> +--- + src/device/Kconfig | 4 ++++ + src/include/device/smbus.h | 5 +++++ + src/southbridge/amd/sb700/Kconfig | 1 + + src/southbridge/amd/sb700/sm.c | 36 +++++++++++++++++++++++++++++++----- + src/southbridge/amd/sb700/smbus.c | 15 +++++++++++++++ + 5 files changed, 56 insertions(+), 5 deletions(-) + +diff --git a/src/device/Kconfig b/src/device/Kconfig +index 613461b..3dd2b61 100644 +--- a/src/device/Kconfig ++++ b/src/device/Kconfig +@@ -192,6 +192,10 @@ config MULTIPLE_VGA_ADAPTERS + bool + default n + ++config SMBUS_HAS_AUX ++ bool ++ default n ++ + config SPD_CACHE + bool + default n +diff --git a/src/include/device/smbus.h b/src/include/device/smbus.h +index 073d7e2..53e90fb 100644 +--- a/src/include/device/smbus.h ++++ b/src/include/device/smbus.h +@@ -47,4 +47,9 @@ int smbus_process_call(device_t dev, u8 cmd, u16 data); + int smbus_block_read(device_t dev, u8 cmd, u8 bytes, u8 *buffer); + int smbus_block_write(device_t dev, u8 cmd, u8 bytes, const u8 *buffer); + ++#if IS_ENABLED(CONFIG_SMBUS_HAS_AUX) ++void smbus_switch_to_aux(uint8_t enable_aux); ++uint8_t smbus_switched_to_aux(void); ++#endif ++ + #endif /* DEVICE_SMBUS_H */ +diff --git a/src/southbridge/amd/sb700/Kconfig b/src/southbridge/amd/sb700/Kconfig +index 42ca2bb..a5dfe07 100644 +--- a/src/southbridge/amd/sb700/Kconfig ++++ b/src/southbridge/amd/sb700/Kconfig +@@ -27,6 +27,7 @@ config SOUTHBRIDGE_SPECIFIC_OPTIONS # dummy + select IOAPIC + select HAVE_USBDEBUG_OPTIONS + select HAVE_HARD_RESET ++ select SMBUS_HAS_AUX + + # Set for southbridge SP5100 which also uses SB700 driver + config SOUTHBRIDGE_AMD_SUBTYPE_SP5100 +diff --git a/src/southbridge/amd/sb700/sm.c b/src/southbridge/amd/sb700/sm.c +index f544c88..c216e1f 100644 +--- a/src/southbridge/amd/sb700/sm.c ++++ b/src/southbridge/amd/sb700/sm.c +@@ -40,6 +40,8 @@ + #define CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON + #endif + ++uint8_t smbus_use_aux = 0; ++ + /* + * SB700 enables all USB controllers by default in SMBUS Control. + * SB700 enables SATA by default in SMBUS Control. +@@ -312,7 +314,10 @@ static int lsmbus_recv_byte(device_t dev) + device = dev->path.i2c.device; + pbus = get_pbus_smbus(dev); + +- res = find_resource(pbus->dev, 0x90); ++ if (!smbus_use_aux) ++ res = find_resource(pbus->dev, 0x90); ++ else ++ res = find_resource(pbus->dev, 0x58); + + return do_smbus_recv_byte(res->base, device); + } +@@ -326,7 +331,10 @@ static int lsmbus_send_byte(device_t dev, u8 val) + device = dev->path.i2c.device; + pbus = get_pbus_smbus(dev); + +- res = find_resource(pbus->dev, 0x90); ++ if (!smbus_use_aux) ++ res = find_resource(pbus->dev, 0x90); ++ else ++ res = find_resource(pbus->dev, 0x58); + + return do_smbus_send_byte(res->base, device, val); + } +@@ -340,7 +348,10 @@ static int lsmbus_read_byte(device_t dev, u8 address) + device = dev->path.i2c.device; + pbus = get_pbus_smbus(dev); + +- res = find_resource(pbus->dev, 0x90); ++ if (!smbus_use_aux) ++ res = find_resource(pbus->dev, 0x90); ++ else ++ res = find_resource(pbus->dev, 0x58); + + return do_smbus_read_byte(res->base, device, address); + } +@@ -354,7 +365,10 @@ static int lsmbus_write_byte(device_t dev, u8 address, u8 val) + device = dev->path.i2c.device; + pbus = get_pbus_smbus(dev); + +- res = find_resource(pbus->dev, 0x90); ++ if (!smbus_use_aux) ++ res = find_resource(pbus->dev, 0x90); ++ else ++ res = find_resource(pbus->dev, 0x58); + + return do_smbus_write_byte(res->base, device, address, val); + } +@@ -393,7 +407,7 @@ static void sb700_sm_read_resources(device_t dev) + + /* dev->command |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; */ + +- /* smbus */ ++ /* primary smbus */ + res = new_resource(dev, 0x90); + res->base = 0xB00; + res->size = 0x10; +@@ -402,6 +416,15 @@ static void sb700_sm_read_resources(device_t dev) + res->gran = 8; + res->flags = IORESOURCE_IO | IORESOURCE_FIXED | IORESOURCE_RESERVE | IORESOURCE_ASSIGNED; + ++ /* auxiliary smbus */ ++ res = new_resource(dev, 0x58); ++ res->base = 0xB20; ++ res->size = 0x10; ++ res->limit = 0xFFFFUL; /* res->base + res->size -1; */ ++ res->align = 8; ++ res->gran = 8; ++ res->flags = IORESOURCE_IO | IORESOURCE_FIXED | IORESOURCE_RESERVE | IORESOURCE_ASSIGNED; ++ + compact_resources(dev); + } + +@@ -441,6 +464,9 @@ static void sb700_sm_set_resources(struct device *dev) + + res = find_resource(dev, 0x90); + pci_write_config32(dev, 0x90, res->base | 1); ++ ++ res = find_resource(dev, 0x58); ++ pci_write_config32(dev, 0x58, res->base | 1); + } + + static struct pci_operations lops_pci = { +diff --git a/src/southbridge/amd/sb700/smbus.c b/src/southbridge/amd/sb700/smbus.c +index 94f5e24..a89e830 100644 +--- a/src/southbridge/amd/sb700/smbus.c ++++ b/src/southbridge/amd/sb700/smbus.c +@@ -22,6 +22,11 @@ + + #include "smbus.h" + ++extern uint8_t smbus_use_aux; ++ ++void smbus_switch_to_aux(uint8_t enable_aux); ++uint8_t smbus_switched_to_aux(void); ++ + void alink_ab_indx(u32 reg_space, u32 reg_addr, u32 mask, u32 val) + { + u32 tmp; +@@ -216,4 +221,14 @@ int do_smbus_write_byte(u32 smbus_io_base, u32 device, u32 address, u8 val) + return 0; + } + ++void smbus_switch_to_aux(uint8_t enable_aux) ++{ ++ smbus_use_aux = enable_aux; ++} ++ ++uint8_t smbus_switched_to_aux(void) ++{ ++ return smbus_use_aux; ++} ++ + #endif +-- +1.9.1 + |