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/* SPDX-License-Identifier: GPL-2.0-only */
#include <bootblock_common.h>
#include <stdint.h>
#include <arch/io.h>
#include <device/pnp_ops.h>
#include <device/pci_ops.h>
#include <option.h>
#include <console/console.h>
#include <northbridge/intel/i945/i945.h>
#include <southbridge/intel/i82801gx/i82801gx.h>
void mainboard_pre_raminit_config(int s3_resume)
{
u32 gpios;
printk(BIOS_SPEW, "\n Initializing drive bay...\n");
gpios = inl(DEFAULT_GPIOBASE + 0x38); // GPIO Level 2
gpios |= (1 << 0); // GPIO33 = ODD
gpios |= (1 << 1); // GPIO34 = IDE_RST#
outl(gpios, DEFAULT_GPIOBASE + 0x38); /* GP_LVL2 */
gpios = inl(DEFAULT_GPIOBASE + 0x0c); // GPIO Level
gpios &= ~(1 << 13); // ??
outl(gpios, DEFAULT_GPIOBASE + 0x0c); /* GP_LVL */
printk(BIOS_SPEW, "\n Initializing Ethernet NIC...\n");
gpios = inl(DEFAULT_GPIOBASE + 0x0c); // GPIO Level
gpios &= ~(1 << 24); // Enable LAN Power
outl(gpios, DEFAULT_GPIOBASE + 0x0c); /* GP_LVL */
}
/* Override the default lpc decode ranges */
void mainboard_lpc_decode(void)
{
int lpt_en = 0;
u8 val;
if (get_option(&val, "lpt") == CB_SUCCESS && val)
lpt_en = LPT_LPC_EN; /* enable LPT */
// decode range
pci_write_config16(PCI_DEV(0, 0x1f, 0), LPC_IO_DEC, 0x0007);
// decode range
pci_update_config32(PCI_DEV(0, 0x1f, 0), LPC_EN, ~LPT_LPC_EN, lpt_en);
}
/* This box has two superios, so enabling serial becomes slightly excessive.
* We disable a lot of stuff to make sure that there are no conflicts between
* the two. Also set up the GPIOs from the beginning. This is the "no schematic
* but safe anyways" method.
*/
static void pnp_enter_ext_func_mode(pnp_devfn_t dev)
{
unsigned int port = dev >> 8;
outb(0x55, port);
}
static void pnp_exit_ext_func_mode(pnp_devfn_t dev)
{
unsigned int port = dev >> 8;
outb(0xaa, port);
}
void bootblock_mainboard_early_init(void)
{
const pnp_devfn_t dev = PNP_DEV(0x4e, 0x00);
pnp_enter_ext_func_mode(dev);
pnp_write_config(dev, 0x02, 0x0e); // UART power
pnp_write_config(dev, 0x1b, (0x3e8 >> 2)); // UART3 base
pnp_write_config(dev, 0x1c, (0x2e8 >> 2)); // UART4 base
pnp_write_config(dev, 0x1d, (5 << 4) | 11); // UART3,4 IRQ
pnp_write_config(dev, 0x1e, 1); // no 32khz clock
pnp_write_config(dev, 0x24, (0x3f8 >> 2)); // UART1 base
pnp_write_config(dev, 0x28, (4 << 4) | 0); // UART1,2 IRQ
pnp_write_config(dev, 0x2c, 0); // DMA0 FIR
pnp_write_config(dev, 0x30, (0x600 >> 4)); // Runtime Register Block Base
pnp_write_config(dev, 0x31, 0xce); // GPIO1 DIR
pnp_write_config(dev, 0x32, 0x00); // GPIO1 POL
pnp_write_config(dev, 0x33, 0x0f); // GPIO2 DIR
pnp_write_config(dev, 0x34, 0x00); // GPIO2 POL
pnp_write_config(dev, 0x35, 0xa8); // GPIO3 DIR
pnp_write_config(dev, 0x36, 0x00); // GPIO3 POL
pnp_write_config(dev, 0x37, 0xa8); // GPIO4 DIR
pnp_write_config(dev, 0x38, 0x00); // GPIO4 POL
pnp_write_config(dev, 0x39, 0x00); // GPIO1 OUT
pnp_write_config(dev, 0x40, 0x80); // GPIO2/MISC OUT
pnp_write_config(dev, 0x41, 0x00); // GPIO5 OUT
pnp_write_config(dev, 0x42, 0xa8); // GPIO5 DIR
pnp_write_config(dev, 0x43, 0x00); // GPIO5 POL
pnp_write_config(dev, 0x44, 0x00); // GPIO ALT1
pnp_write_config(dev, 0x45, 0x50); // GPIO ALT2
pnp_write_config(dev, 0x46, 0x00); // GPIO ALT3
pnp_write_config(dev, 0x48, 0x55); // GPIO ALT5
pnp_write_config(dev, 0x49, 0x55); // GPIO ALT6
pnp_write_config(dev, 0x4a, 0x55); // GPIO ALT7
pnp_write_config(dev, 0x4b, 0x55); // GPIO ALT8
pnp_write_config(dev, 0x4c, 0x55); // GPIO ALT9
pnp_write_config(dev, 0x4d, 0x55); // GPIO ALT10
pnp_exit_ext_func_mode(dev);
}
void mainboard_late_rcba_config(void)
{
/* Device 1f interrupt pin register */
RCBA32(D31IP) = 0x00042220;
/* Device 1d interrupt pin register */
RCBA32(D28IP) = 0x00214321;
/* dev irq route register */
RCBA16(D31IR) = 0x0232;
RCBA16(D30IR) = 0x3246;
RCBA16(D29IR) = 0x0237;
RCBA16(D28IR) = 0x3201;
RCBA16(D27IR) = 0x3216;
/* Disable unused devices */
RCBA32(FD) |= FD_INTLAN;
/* This should probably go into the ACPI enable trap */
/* Set up I/O Trap #0 for 0xfe00 (SMIC) */
RCBA32(0x1e84) = 0x00020001;
RCBA32(0x1e80) = 0x0000fe01;
/* Set up I/O Trap #3 for 0x800-0x80c (Trap) */
RCBA32(0x1e9c) = 0x000200f0;
RCBA32(0x1e98) = 0x000c0801;
}
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