diff options
Diffstat (limited to 'src/northbridge/via/cx700')
| -rw-r--r-- | src/northbridge/via/cx700/Kconfig | 14 | ||||
| -rw-r--r-- | src/northbridge/via/cx700/Makefile.mk | 8 | ||||
| -rw-r--r-- | src/northbridge/via/cx700/chip.c | 5 | ||||
| -rw-r--r-- | src/northbridge/via/cx700/chipset.cb | 17 | ||||
| -rw-r--r-- | src/northbridge/via/cx700/clock.c | 38 | ||||
| -rw-r--r-- | src/northbridge/via/cx700/reset.c | 9 | ||||
| -rw-r--r-- | src/northbridge/via/cx700/romstage.c | 10 |
7 files changed, 101 insertions, 0 deletions
diff --git a/src/northbridge/via/cx700/Kconfig b/src/northbridge/via/cx700/Kconfig new file mode 100644 index 0000000000..95f289aacb --- /dev/null +++ b/src/northbridge/via/cx700/Kconfig @@ -0,0 +1,14 @@ +## SPDX-License-Identifier: GPL-2.0-only + +config NORTHBRIDGE_VIA_CX700 + bool + select PCI + select NO_ECAM_MMCONF_SUPPORT + select HAVE_CF9_RESET + +if NORTHBRIDGE_VIA_CX700 + +config CHIPSET_DEVICETREE + default "northbridge/via/cx700/chipset.cb" + +endif diff --git a/src/northbridge/via/cx700/Makefile.mk b/src/northbridge/via/cx700/Makefile.mk new file mode 100644 index 0000000000..550ee2dec3 --- /dev/null +++ b/src/northbridge/via/cx700/Makefile.mk @@ -0,0 +1,8 @@ +## SPDX-License-Identifier: GPL-2.0-only +ifeq ($(CONFIG_NORTHBRIDGE_VIA_CX700),y) + +romstage-y += romstage.c +ramstage-y += chip.c +all-y += clock.c reset.c + +endif diff --git a/src/northbridge/via/cx700/chip.c b/src/northbridge/via/cx700/chip.c new file mode 100644 index 0000000000..57583b84c7 --- /dev/null +++ b/src/northbridge/via/cx700/chip.c @@ -0,0 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <device/device.h> + +struct chip_operations northbridge_via_cx700_ops = { NULL }; diff --git a/src/northbridge/via/cx700/chipset.cb b/src/northbridge/via/cx700/chipset.cb new file mode 100644 index 0000000000..4dd11f307e --- /dev/null +++ b/src/northbridge/via/cx700/chipset.cb @@ -0,0 +1,17 @@ +chip northbridge/via/cx700 + + device domain 0 on + + device pci 00.0 alias host_ctrl on end + device pci 00.1 alias host_err on end + device pci 00.2 alias host_if on end + device pci 00.3 alias dram_ctrl on end + device pci 00.4 alias pm_ctrl on end + device pci 00.7 alias north_end on end + device pci 01.0 alias north_pci off + device pci 00.0 alias vga off end + end + + end + +end diff --git a/src/northbridge/via/cx700/clock.c b/src/northbridge/via/cx700/clock.c new file mode 100644 index 0000000000..6bd5942a93 --- /dev/null +++ b/src/northbridge/via/cx700/clock.c @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#define __SIMPLE_DEVICE__ +#include <console/console.h> +#include <device/pci_ops.h> +#include <static_devices.h> +#include <delay.h> + +static unsigned int read_timer_fsb(void) +{ + /* Allows access to all northbridge PCI devfn's */ + pci_write_config8(_sdev_host_ctrl, 0x4f, 0x01); + + const u8 misc_1 = pci_read_config8(_sdev_host_if, 0x54); + switch (misc_1 >> 5) { + case 0: + return 100; + case 1: + return 133; + case 2: + return 166; + case 3: + return 200; + default: + printk(BIOS_WARNING, "Unknown FSB frequency encoding: 0x%x\n", misc_1 >> 5); + return 200; + } +} + +u32 get_timer_fsb(void) +{ + static unsigned int fsb_mhz; + + if (!fsb_mhz) + fsb_mhz = read_timer_fsb(); + + return fsb_mhz; +} diff --git a/src/northbridge/via/cx700/reset.c b/src/northbridge/via/cx700/reset.c new file mode 100644 index 0000000000..b052f1d8d5 --- /dev/null +++ b/src/northbridge/via/cx700/reset.c @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <reset.h> +#include <cf9_reset.h> + +void do_board_reset(void) +{ + full_reset(); +} diff --git a/src/northbridge/via/cx700/romstage.c b/src/northbridge/via/cx700/romstage.c new file mode 100644 index 0000000000..f4c5584c30 --- /dev/null +++ b/src/northbridge/via/cx700/romstage.c @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <romstage_common.h> +#include <halt.h> + +void __noreturn romstage_main(void) +{ + /* Needed for __noreturn */ + halt(); +} |