| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <arch/bootblock.h> |
| #include <device/pci_ops.h> |
| #include "i82801jx.h" |
| |
| static void enable_spi_prefetch(void) |
| { |
| u8 reg8; |
| pci_devfn_t dev; |
| |
| dev = PCI_DEV(0, 0x1f, 0); |
| |
| reg8 = pci_read_config8(dev, 0xdc); |
| reg8 &= ~(3 << 2); |
| reg8 |= (2 << 2); /* Prefetching and Caching Enabled */ |
| pci_write_config8(dev, 0xdc, reg8); |
| } |
| |
| void bootblock_early_southbridge_init(void) |
| { |
| enable_spi_prefetch(); |
| |
| i82801jx_setup_bars(); |
| |
| /* Enable upper 128bytes of CMOS. */ |
| RCBA32(0x3400) = (1 << 2); |
| |
| i82801jx_lpc_setup(); |
| } |