diff options
| -rw-r--r-- | src/southbridge/intel/i82801jx/lpc.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/src/southbridge/intel/i82801jx/lpc.c b/src/southbridge/intel/i82801jx/lpc.c index edbd0e87d3..94b7f17dfa 100644 --- a/src/southbridge/intel/i82801jx/lpc.c +++ b/src/southbridge/intel/i82801jx/lpc.c @@ -471,6 +471,7 @@ static void lpc_init(struct device *dev) static void i82801jx_lpc_read_resources(device_t dev) { + int i, io_index = 0; /* * I/O Resources * @@ -507,15 +508,15 @@ static void i82801jx_lpc_read_resources(device_t dev) pci_dev_read_resources(dev); /* Add an extra subtractive resource for both memory and I/O. */ - res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0)); + res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0)); res->base = 0; res->size = 0x1000; res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; - res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0)); - res->base = 0xff800000; - res->size = 0x00800000; /* 8 MB for flash */ + res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0)); + res->base = 0xff000000; + res->size = 0x01000000; /* 16 MB for flash */ res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; @@ -523,6 +524,20 @@ static void i82801jx_lpc_read_resources(device_t dev) res->base = IO_APIC_ADDR; res->size = 0x00001000; res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; + + /* Set IO decode ranges if required.*/ + for (i = 0; i < 4; i++) { + u32 gen_dec; + gen_dec = pci_read_config32(dev, 0x84 + 4 * i); + + if ((gen_dec & 0xFFFC) > 0x1000) { + res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0)); + res->base = gen_dec & 0xFFFC; + res->size = (gen_dec >> 16) & 0xFC; + res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | + IORESOURCE_ASSIGNED | IORESOURCE_FIXED; + } + } } static void set_subsystem(device_t dev, unsigned vendor, unsigned device) |