From 10aca3cae2c7199027f04f3dfeb5f8df7c0ed8f3 Mon Sep 17 00:00:00 2001 From: Florentin Demetrescu Date: Fri, 1 Feb 2008 23:14:40 +0000 Subject: [PATCH] This patch fixes the decoding of the IO address range 0x0820->0x0827 into the LPC device of the MCP55 southbridge, thus enabling flashrom access to the SPI interface of the IT8716 SIO chip. Changes : 1) - increase MAX_RESOURCES to 24 in device.h -> this was needed because some functions of a PNP device can have more than 12 resources (ex the GPIO function of IT8716f), in which case one could have an "array overflow" inside the device structure (yes gcc is stupid!..) and ultimately a disaster (fool pointer at device init time..) 2) - define resource masks for the GPIO function in src/superio/ite/it8716f/superio.c -> this is needed because otherwise the IO ranges which are set into the LPC bridge of the SB are very strange (f.ex.: 0x800->0x7ff and so on..). Problem: the PNP_IO0 resource is not defined for the GPIO function, thus we have to define a "fake" mask "{0,0}" to avoid mismatching by the init code 3) - enable the flash SPI interface into src/mainboard/gigabyte/m57sli/Config.lb (by enabling the corresponding resource into the GPIO function). I know that this is problematic because not all m57sli boards are SPI, but .. do anyone have a better idea how to handle this?.. Signed-off-by: Florentin Demetrescu I (Ward) have verified your patch on a rev2 of this board (it works!) as well as on a rev1 (plcc). It does not affect flashing on rev1 nor have any averse side effects that I noticed, so I think this patch should go in. Acked-by: Ward Vandewege Acked-by: Carl-Daniel Hailfinger git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3088 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/include/device/device.h | 2 +- src/mainboard/gigabyte/m57sli/Config.lb | 2 +- src/superio/ite/it8716f/superio.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/include/device/device.h b/src/include/device/device.h index b922e2687e..09d163cf59 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -55,7 +55,7 @@ struct bus { unsigned disable_relaxed_ordering : 1; }; -#define MAX_RESOURCES 12 +#define MAX_RESOURCES 24 #define MAX_LINKS 8 /* * There is one device structure for each slot-number/function-number diff --git a/src/mainboard/gigabyte/m57sli/Config.lb b/src/mainboard/gigabyte/m57sli/Config.lb index 88eb4d3d1f..5f34c9eeb5 100644 --- a/src/mainboard/gigabyte/m57sli/Config.lb +++ b/src/mainboard/gigabyte/m57sli/Config.lb @@ -290,7 +290,7 @@ chip northbridge/amd/amdk8/root_complex # Simple I/O base io 0x62 = 0x800 # Serial Flash I/O (SPI only) - #io 0x64 = 0x820 + io 0x64 = 0x820 # watch dog force timeout (parallel flash only) #irq 0x71 = 0x1 # No WDT interrupt diff --git a/src/superio/ite/it8716f/superio.c b/src/superio/ite/it8716f/superio.c index f310511d95..be78639b87 100644 --- a/src/superio/ite/it8716f/superio.c +++ b/src/superio/ite/it8716f/superio.c @@ -152,7 +152,7 @@ static struct pnp_info pnp_dev_info[] = { {&ops, IT8716F_KBCK, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x7ff, 0}, {0x7ff, 0x4},}, {&ops, IT8716F_KBCM, PNP_IRQ0,}, - {&ops, IT8716F_GPIO,}, + {&ops, IT8716F_GPIO, PNP_IO1 | PNP_IO2, {0, 0}, {0x7f8, 0}, {0x7f8, 0},}, {&ops, IT8716F_MIDI, PNP_IO0 | PNP_IRQ0, {0x7fe, 0x4},}, {&ops, IT8716F_GAME, PNP_IO0, {0x7ff, 0},}, {&ops, IT8716F_IR,},