debug.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <spd.h>
#include <device/pci_ops.h>
#include <device/pci_def.h>
#include <device/smbus_host.h>
#include <console/console.h>
#include "i945.h"
 
void print_pci_devices(void)
{
        pci_devfn_t dev;
        for (dev = PCI_DEV(0, 0, 0); dev <= PCI_DEV(0, 0x1f, 0x7); dev += PCI_DEV(0, 0, 1)) {
                uint32_t id;
                id = pci_read_config32(dev, PCI_VENDOR_ID);
                if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
                        (((id >> 16) & 0xffff) == 0xffff) ||
                        (((id >> 16) & 0xffff) == 0x0000)) {
                        continue;
                }
                printk(BIOS_DEBUG, "PCI: %02x:%02x.%02x", (dev >> 20) & 0xff,
                        (dev >> 15) & 0x1f, (dev >> 12) & 7);
                printk(BIOS_DEBUG, " [%04x:%04x]\n", id & 0xffff, id >> 16);
        }
}
 
void dump_pci_device(unsigned int dev)
{
        int i;
 
        printk(BIOS_DEBUG, "PCI: %02x:%02x.%02x\n", (dev >> 20) & 0xff, (dev >> 15) & 0x1f,
                (dev >> 12) & 7);
 
        for (i = 0; i <= 255; i++) {
                unsigned char val;
                if ((i & 0x0f) == 0)
                        printk(BIOS_DEBUG, "%02x:", i);
                val = pci_read_config8(dev, i);
                printk(BIOS_DEBUG, " %02x", val);
                if ((i & 0x0f) == 0x0f)
                        printk(BIOS_DEBUG, "\n");
        }
}
 
void dump_pci_devices(void)
{
        pci_devfn_t dev;
        for (dev = PCI_DEV(0, 0, 0); dev <= PCI_DEV(0, 0x1f, 0x7); dev += PCI_DEV(0, 0, 1)) {
                uint32_t id;
                id = pci_read_config32(dev, PCI_VENDOR_ID);
                if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
                        (((id >> 16) & 0xffff) == 0xffff) ||
                        (((id >> 16) & 0xffff) == 0x0000)) {
                        continue;
                }
                dump_pci_device(dev);
        }
}
 
void dump_spd_registers(u8 spd_map[4])
{
        for (unsigned int d = 0; d < 4; d++) {
                const unsigned int device = spd_map[d];
                if (device == 0)
                        continue;
 
                int status = 0;
                int i;
                printk(BIOS_DEBUG, "\ndimm %02x", device);
 
                for (i = 0; (i < 256); i++) {
                        if ((i % 16) == 0)
                                printk(BIOS_DEBUG, "\n%02x: ", i);
                        status = smbus_read_byte(device, i);
                        if (status < 0) {
                                printk(BIOS_DEBUG, "bad device: %02x\n", -status);
                                break;
                        }
                        printk(BIOS_DEBUG, "%02x ", status);
                }
                printk(BIOS_DEBUG, "\n");
        }
}