diff options
Diffstat (limited to 'it85spi.c')
| -rw-r--r-- | it85spi.c | 26 |
1 files changed, 18 insertions, 8 deletions
@@ -257,8 +257,10 @@ static int it85xx_spi_common_init(struct superio s) INDIRECT_A3(shm_io_base, (base >> 24)); #endif #ifdef LPC_MEMORY - base = (chipaddr)programmer_map_flash_region("it85 communication", - 0xFFFFF000, 0x1000); + /* FIXME: We should block accessing that region for anything else. + * Major TODO here, and it will be a lot of work. + */ + base = (chipaddr)physmap("it85 communication", 0xFFFFF000, 0x1000); msg_pdbg("%s():%d base=0x%08x\n", __func__, __LINE__, (unsigned int)base); ce_high = (unsigned char *)(base + 0xE00); /* 0xFFFFFE00 */ @@ -285,18 +287,26 @@ int it85xx_spi_init(struct superio s) { int ret; - if (!(buses_supported & BUS_FWH)) { + if (!(internal_buses_supported & BUS_FWH)) { msg_pdbg("%s():%d buses not support FWH\n", __func__, __LINE__); return 1; } ret = it85xx_spi_common_init(s); msg_pdbg("FWH: %s():%d ret=%d\n", __func__, __LINE__, ret); if (!ret) { - msg_pdbg("%s():%d buses_supported=0x%x\n", __func__, __LINE__, - buses_supported); - if (buses_supported & BUS_FWH) - msg_pdbg("Overriding chipset SPI with IT85 FWH|SPI.\n"); - /* Really leave FWH enabled? */ + msg_pdbg("%s: internal_buses_supported=0x%x\n", __func__, + internal_buses_supported); + /* Check for FWH because IT85 listens to FWH cycles. + * FIXME: The big question is whether FWH cycles are necessary + * for communication even if LPC_IO is defined. + */ + if (internal_buses_supported & BUS_FWH) + msg_pdbg("Registering IT85 SPI.\n"); + /* FIXME: Really leave FWH enabled? We can't use this region + * anymore since accessing it would mess up IT85 communication. + * If we decide to disable FWH for this region, we should print + * a debug message about it. + */ /* Set this as SPI controller. */ register_spi_programmer(&spi_programmer_it85xx); } |
