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/* SPDX-License-Identifier: GPL-2.0-only */
#include <device/device.h>
#include <amdblocks/agesawrapper.h>
#include <amdblocks/amd_pci_util.h>
#include <console/console.h>
#include <soc/gpio.h>
#include <soc/pci_devs.h>
#include <soc/southbridge.h>
#include <string.h>
#include "gpio.h"
/*
* These arrays set up the FCH PCI_INTR registers 0xC00/0xC01.
* This table is responsible for physically routing the PIC and
* IOAPIC IRQs to the different PCI devices on the system. It
* is read and written via registers 0xC00/0xC01 as an
* Index/Data pair. These values are chipset and mainboard
* dependent and should be updated accordingly.
*/
static uint8_t fch_pic_routing[FCH_IRQ_ROUTING_ENTRIES];
static uint8_t fch_apic_routing[FCH_IRQ_ROUTING_ENTRIES];
static const struct fch_irq_routing fch_irq_map[] = {
{ PIRQ_A, 3, 16 },
{ PIRQ_B, 4, 17 },
{ PIRQ_C, 5, 18 },
{ PIRQ_D, 7, 19 },
{ PIRQ_E, 11, 20 },
{ PIRQ_F, 10, 21 },
{ PIRQ_G, PIRQ_NC, 22 },
{ PIRQ_H, PIRQ_NC, 23 },
{ PIRQ_SCI, PIRQ_NC, 9 },
{ PIRQ_SMBUS, PIRQ_NC, PIRQ_NC },
{ PIRQ_HDA, 3, 16 },
{ PIRQ_SD, PIRQ_NC, 16 },
{ PIRQ_SDIO, PIRQ_NC, PIRQ_NC },
{ PIRQ_EHCI, 5, 18 },
{ PIRQ_XHCI, 4, 18 },
{ PIRQ_SATA, PIRQ_NC, 19 },
{ PIRQ_GPIO, 7, 7 },
{ PIRQ_I2C0, 3, 3 },
{ PIRQ_I2C1, 15, 15 },
{ PIRQ_I2C2, 6, 6 },
{ PIRQ_I2C3, 14, 14 },
{ PIRQ_UART0, 10, 10 },
{ PIRQ_UART1, 11, 11 },
/* The MISC registers are not interrupt numbers */
{ PIRQ_MISC, 0xfa, 0x00 },
{ PIRQ_MISC0, 0xf1, 0x00 },
{ PIRQ_MISC1, 0x00, 0x00 },
{ PIRQ_MISC2, 0x00, 0x00 },
};
static const struct fch_irq_routing *mb_get_fch_irq_mapping(size_t *length)
{
*length = ARRAY_SIZE(fch_irq_map);
return fch_irq_map;
}
static void init_tables(void)
{
const struct fch_irq_routing *mb_irq_map;
size_t mb_fch_irq_mapping_table_size;
size_t i;
mb_irq_map = mb_get_fch_irq_mapping(&mb_fch_irq_mapping_table_size);
memset(fch_pic_routing, PIRQ_NC, sizeof(fch_pic_routing));
memset(fch_apic_routing, PIRQ_NC, sizeof(fch_apic_routing));
for (i = 0; i < mb_fch_irq_mapping_table_size; i++) {
if (mb_irq_map[i].intr_index >= FCH_IRQ_ROUTING_ENTRIES) {
printk(BIOS_WARNING,
"Invalid IRQ index %u in FCH IRQ routing table entry %zu\n",
mb_irq_map[i].intr_index, i);
continue;
}
fch_pic_routing[mb_irq_map[i].intr_index] = mb_irq_map[i].pic_irq_num;
fch_apic_routing[mb_irq_map[i].intr_index] = mb_irq_map[i].apic_irq_num;
}
}
/*
* This table defines the index into the picr/intr_data tables for each
* device. Any enabled device and slot that uses hardware interrupts should
* have an entry in this table to define its index into the FCH PCI_INTR
* register 0xC00/0xC01. This index will define the interrupt that it should
* use. Putting PIRQ_A into the PIN A index for a device will tell that
* device to use PIC IRQ 10 if it uses PIN A for its hardware INT.
*/
static const struct pirq_struct mainboard_pirq_data[] = {
{ GFX_DEVFN, { PIRQ_A, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
{ HDA0_DEVFN, { PIRQ_NC, PIRQ_HDA, PIRQ_NC, PIRQ_NC } },
{ PCIE0_DEVFN, { PIRQ_A, PIRQ_B, PIRQ_C, PIRQ_D } },
{ PCIE1_DEVFN, { PIRQ_B, PIRQ_C, PIRQ_D, PIRQ_A } },
{ PCIE2_DEVFN, { PIRQ_C, PIRQ_D, PIRQ_A, PIRQ_B } },
{ PCIE3_DEVFN, { PIRQ_D, PIRQ_A, PIRQ_B, PIRQ_C } },
{ PCIE4_DEVFN, { PIRQ_A, PIRQ_B, PIRQ_C, PIRQ_D } },
{ PSP_DEVFN, { PIRQ_A, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
{ HDA1_DEVFN, { PIRQ_HDA, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
{ SD_DEVFN, { PIRQ_SD, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
{ SMBUS_DEVFN, { PIRQ_SMBUS, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
{ SATA_DEVFN, { PIRQ_SATA, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
{ EHCI1_DEVFN, { PIRQ_EHCI, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
{ XHCI_DEVFN, { PIRQ_XHCI, PIRQ_NC, PIRQ_NC, PIRQ_NC } },
};
/* PIRQ Setup */
static void pirq_setup(void)
{
pirq_data_ptr = mainboard_pirq_data;
pirq_data_size = ARRAY_SIZE(mainboard_pirq_data);
intr_data_ptr = fch_apic_routing;
picr_data_ptr = fch_pic_routing;
}
static void mainboard_init(void *chip_info)
{
size_t num_gpios;
const struct soc_amd_gpio *gpios;
gpios = gpio_table(&num_gpios);
gpio_configure_pads(gpios, num_gpios);
}
/*************************************************
* enable the dedicated function in pademelon board.
*************************************************/
static void mainboard_enable(struct device *dev)
{
init_tables();
/* Initialize the PIRQ data structures for consumption */
pirq_setup();
}
struct chip_operations mainboard_ops = {
.init = mainboard_init,
.enable_dev = mainboard_enable,
};
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