Stefan Reinauer (stefan.reinauer@coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2695
-gerrit
commit aae0413c8dd0075cbbc35c4f5a84df3010db57c5 Author: Duncan Laurie dlaurie@chromium.org Date: Thu Jan 10 13:20:40 2013 -0800
lynxpoint: Add support for disabling ULT devices
These enables are hidden behind IOBP for some reason.
Boot to linux with SDIO disabled and see that the SDIO driver does not load and crash the system.
Change-Id: Icfbfa117e9e57a51d32db7f6366a9d0d790adcf0 Signed-off-by: Duncan Laurie dlaurie@chromium.org --- src/southbridge/intel/lynxpoint/pch.c | 24 ++++++++++++++++++++++++ src/southbridge/intel/lynxpoint/pch.h | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 58 insertions(+)
diff --git a/src/southbridge/intel/lynxpoint/pch.c b/src/southbridge/intel/lynxpoint/pch.c index 1fb4915..41c596c 100644 --- a/src/southbridge/intel/lynxpoint/pch.c +++ b/src/southbridge/intel/lynxpoint/pch.c @@ -61,6 +61,27 @@ static void pch_hide_devfn(unsigned devfn) case PCI_DEVFN(20, 0): /* XHCI */ RCBA32_OR(FD, PCH_DISABLE_XHCI); break; + case PCI_DEVFN(21, 0): /* DMA */ + pch_iobp_update(SIO_IOBP_FUNCDIS0, ~0UL, SIO_IOBP_FUNCDIS_DIS); + break; + case PCI_DEVFN(21, 1): /* I2C0 */ + pch_iobp_update(SIO_IOBP_FUNCDIS1, ~0UL, SIO_IOBP_FUNCDIS_DIS); + break; + case PCI_DEVFN(21, 2): /* I2C1 */ + pch_iobp_update(SIO_IOBP_FUNCDIS2, ~0UL, SIO_IOBP_FUNCDIS_DIS); + break; + case PCI_DEVFN(21, 3): /* SPI0 */ + pch_iobp_update(SIO_IOBP_FUNCDIS3, ~0UL, SIO_IOBP_FUNCDIS_DIS); + break; + case PCI_DEVFN(21, 4): /* SPI1 */ + pch_iobp_update(SIO_IOBP_FUNCDIS4, ~0UL, SIO_IOBP_FUNCDIS_DIS); + break; + case PCI_DEVFN(21, 5): /* UART0 */ + pch_iobp_update(SIO_IOBP_FUNCDIS5, ~0UL, SIO_IOBP_FUNCDIS_DIS); + break; + case PCI_DEVFN(21, 6): /* UART1 */ + pch_iobp_update(SIO_IOBP_FUNCDIS6, ~0UL, SIO_IOBP_FUNCDIS_DIS); + break; case PCI_DEVFN(22, 0): /* MEI #1 */ RCBA32_OR(FD2, PCH_DISABLE_MEI1); break; @@ -73,6 +94,9 @@ static void pch_hide_devfn(unsigned devfn) case PCI_DEVFN(22, 3): /* KT */ RCBA32_OR(FD2, PCH_DISABLE_KT); break; + case PCI_DEVFN(23, 0): /* SDIO */ + pch_iobp_update(SIO_IOBP_FUNCDIS7, ~0UL, SIO_IOBP_FUNCDIS_DIS); + break; case PCI_DEVFN(25, 0): /* Gigabit Ethernet */ RCBA32_OR(BUC, PCH_DISABLE_GBE); break; diff --git a/src/southbridge/intel/lynxpoint/pch.h b/src/southbridge/intel/lynxpoint/pch.h index 229b795..f27ae90 100644 --- a/src/southbridge/intel/lynxpoint/pch.h +++ b/src/southbridge/intel/lynxpoint/pch.h @@ -286,6 +286,40 @@ unsigned get_gpios(const int *gpio_num_array); #define SATA_IOBP_SP0G3IR 0xea000151 #define SATA_IOBP_SP1G3IR 0xea000051
+/* Serial IO IOBP Registers */ +#define SIO_IOBP_PORTCTRL0 0xcb000000 /* SDIO D23:F0 */ +#define SIO_IOBP_PORTCTRL0_ACPI_IRQ_EN (1 << 5) +#define SIO_IOBP_PORTCTRL0_PCI_CONF_DIS (1 << 4) +#define SIO_IOBP_PORTCTRL1 0xcb000014 /* SDIO D23:F0 */ +#define SIO_IOBP_PORTCTRL1_SNOOP_SELECT(x) (((x) & 3) << 13) +#define SIO_IOBP_GPIODF 0xcb000154 +#define SIO_IOBP_GPIODF_SDIO_IDLE_DET_EN (1 << 4) +#define SIO_IOBP_GPIODF_DMA_IDLE_DET_EN (1 << 3) +#define SIO_IOBP_GPIODF_UART_IDLE_DET_EN (1 << 2) +#define SIO_IOBP_GPIODF_I2C_IDLE_DET_EN (1 << 1) +#define SIO_IOBP_GPIODF_SPI_IDLE_DET_EN (1 << 0) +#define SIO_IOBP_PORTCTRL2 0xcb000240 /* DMA D21:F0 */ +#define SIO_IOBP_PORTCTRL3 0xcb000248 /* I2C0 D21:F1 */ +#define SIO_IOBP_PORTCTRL4 0xcb000250 /* I2C1 D21:F2 */ +#define SIO_IOBP_PORTCTRL5 0xcb000258 /* SPI0 D21:F3 */ +#define SIO_IOBP_PORTCTRL6 0xcb000260 /* SPI1 D21:F4 */ +#define SIO_IOBP_PORTCTRL7 0xcb000268 /* UART0 D21:F5 */ +#define SIO_IOBP_PORTCTRL8 0xcb000270 /* UART1 D21:F6 */ +/* PORTCTRL 2-8 have the same layout */ +#define SIO_IOBP_PORTCTRL_ACPI_IRQ_EN (1 << 21) +#define SIO_IOBP_PORTCTRL_PCI_CONF_DIS (1 << 20) +#define SIO_IOBP_PORTCTRL_SNOOP_SELECT(x) (((x) & 3) << 18) +#define SIO_IOBP_PORTCTRL_INT_PIN(x) (((x) & 0xf) << 2) +#define SIO_IOBP_FUNCDIS0 0xce00aa07 /* DMA D21:F0 */ +#define SIO_IOBP_FUNCDIS1 0xce00aa47 /* I2C0 D21:F1 */ +#define SIO_IOBP_FUNCDIS2 0xce00aa87 /* I2C1 D21:F2 */ +#define SIO_IOBP_FUNCDIS3 0xce00aac7 /* SPI0 D21:F3 */ +#define SIO_IOBP_FUNCDIS4 0xce00ab07 /* SPI1 D21:F4 */ +#define SIO_IOBP_FUNCDIS5 0xce00ab47 /* UART0 D21:F5 */ +#define SIO_IOBP_FUNCDIS6 0xce00ab87 /* UART1 D21:F6 */ +#define SIO_IOBP_FUNCDIS7 0xce00ae07 /* SDIO D23:F0 */ +#define SIO_IOBP_FUNCDIS_DIS (1 << 8) + /* PCI Configuration Space (D31:F3): SMBus */ #define PCH_SMBUS_DEV PCI_DEV(0, 0x1f, 3) #define SMB_BASE 0x20