diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/fsp_broadwell_de/include/soc/pci_devs.h | 1 | ||||
| -rw-r--r-- | src/soc/intel/fsp_broadwell_de/include/soc/vtd.h | 13 | ||||
| -rw-r--r-- | src/soc/intel/fsp_broadwell_de/romstage/romstage.c | 16 |
3 files changed, 19 insertions, 11 deletions
diff --git a/src/soc/intel/fsp_broadwell_de/include/soc/pci_devs.h b/src/soc/intel/fsp_broadwell_de/include/soc/pci_devs.h index 973f55983b..58591dcda0 100644 --- a/src/soc/intel/fsp_broadwell_de/include/soc/pci_devs.h +++ b/src/soc/intel/fsp_broadwell_de/include/soc/pci_devs.h @@ -32,6 +32,7 @@ #define VTD_FUNC 0 #define VTD_DEVID 0x6f28 #define VTD_DEV_FUNC PCI_DEVFN(VTD_DEV, VTD_FUNC) +#define VTD_PCI_DEV PCI_DEV(BUS0, VTD_DEV, VTD_FUNC) #define LPC_DEV 31 #define LPC_FUNC 0 diff --git a/src/soc/intel/fsp_broadwell_de/include/soc/vtd.h b/src/soc/intel/fsp_broadwell_de/include/soc/vtd.h index 43da267dce..814cba02cd 100644 --- a/src/soc/intel/fsp_broadwell_de/include/soc/vtd.h +++ b/src/soc/intel/fsp_broadwell_de/include/soc/vtd.h @@ -16,6 +16,9 @@ #ifndef _BROADWELL_VTD_H_ #define _BROADWELL_VTD_H_ +#include <device/pci_ops.h> +#include <soc/pci_devs.h> + #define VTD_CPUBUSNO 0x108 #define VTD_CPUBUSNO_BUS0_MASK 0xff #define VTD_CPUBUSNO_BUS0_SHIFT 0 @@ -26,4 +29,14 @@ #define VTD_DFX1 0x804 #define VTD_DFX1_RANGE_3F8_DISABLE (1u << 29) #define VTD_DFX1_RANGE_2F8_DISABLE (1u << 30) + +static inline uint8_t get_busno1(void) +{ + uint32_t reg32; + + /* Figure out what bus number is assigned for CPUBUSNO(1) */ + reg32 = pci_mmio_read_config32(VTD_PCI_DEV, VTD_CPUBUSNO); + return ((reg32 >> VTD_CPUBUSNO_BUS1_SHIFT) & VTD_CPUBUSNO_BUS1_MASK); +} + #endif diff --git a/src/soc/intel/fsp_broadwell_de/romstage/romstage.c b/src/soc/intel/fsp_broadwell_de/romstage/romstage.c index 5c9682ac9e..b0fad3f02b 100644 --- a/src/soc/intel/fsp_broadwell_de/romstage/romstage.c +++ b/src/soc/intel/fsp_broadwell_de/romstage/romstage.c @@ -61,24 +61,18 @@ static void setup_gpio_io_address(void) static void enable_integrated_uart(uint8_t port) { - uint32_t reg32, busno1 = 0, ubox_uart_en = 0, dfx1 = 0; - pci_devfn_t vtd_dev, ubox_dev; - - vtd_dev = PCI_DEV(BUS0, VTD_DEV, VTD_FUNC); - - /* Figure out what bus number is assigned for CPUBUSNO(1) */ - reg32 = pci_mmio_read_config32(vtd_dev, VTD_CPUBUSNO); - busno1 = (reg32 >> VTD_CPUBUSNO_BUS1_SHIFT) & VTD_CPUBUSNO_BUS1_MASK; + uint32_t ubox_uart_en = 0, dfx1 = 0; + pci_devfn_t ubox_dev; /* UBOX sits on CPUBUSNO(1) */ - ubox_dev = PCI_DEV(busno1, UBOX_DEV, UBOX_FUNC); + ubox_dev = PCI_DEV(get_busno1(), UBOX_DEV, UBOX_FUNC); uint32_t reset_sts = pci_mmio_read_config32(ubox_dev, UBOX_SC_RESET_STATUS); /* In case we are in bypass mode do nothing */ if (reset_sts & UBOX_SC_BYPASS) return; - dfx1 = pci_mmio_read_config32(vtd_dev, VTD_DFX1); + dfx1 = pci_mmio_read_config32(VTD_PCI_DEV, VTD_DFX1); ubox_uart_en = pci_mmio_read_config32(ubox_dev, UBOX_UART_ENABLE); switch (port) { @@ -96,7 +90,7 @@ static void enable_integrated_uart(uint8_t port) } /* Disable decoding and enable the port we want */ - pci_mmio_write_config32(vtd_dev, VTD_DFX1, dfx1); + pci_mmio_write_config32(VTD_PCI_DEV, VTD_DFX1, dfx1); pci_mmio_write_config32(ubox_dev, UBOX_UART_ENABLE, ubox_uart_en); } |