+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Andreas Heppel <aheppel@sysgo.de>
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
* Wolfgang Grandegger, DENX Software Engineering, wg@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
/*
#include <command.h>
#include <console.h>
#include <dm.h>
+#include <init.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <pci.h>
return pci_byte_size(size) * 2;
}
-#ifdef CONFIG_DM_PCI
static void pci_show_regs(struct udevice *dev, struct pci_reg_info *regs)
{
for (; regs->name; regs++) {
pci_field_width(regs->size), val);
}
}
-#else
-static unsigned long pci_read_config(pci_dev_t dev, int offset,
- enum pci_size_t size)
-{
- u32 val32;
- u16 val16;
- u8 val8;
- switch (size) {
- case PCI_SIZE_8:
- pci_read_config_byte(dev, offset, &val8);
- return val8;
- case PCI_SIZE_16:
- pci_read_config_word(dev, offset, &val16);
- return val16;
- case PCI_SIZE_32:
- default:
- pci_read_config_dword(dev, offset, &val32);
- return val32;
+static int pci_bar_show(struct udevice *dev)
+{
+ u8 header_type;
+ int bar_cnt, bar_id, mem_type;
+ bool is_64, is_io;
+ u32 base_low, base_high;
+ u32 size_low, size_high;
+ u64 base, size;
+ u32 reg_addr;
+ int prefetchable;
+
+ dm_pci_read_config8(dev, PCI_HEADER_TYPE, &header_type);
+
+ if (header_type == PCI_HEADER_TYPE_CARDBUS) {
+ printf("CardBus doesn't support BARs\n");
+ return -ENOSYS;
}
-}
-static void pci_show_regs(pci_dev_t dev, struct pci_reg_info *regs)
-{
- for (; regs->name; regs++) {
- printf(" %s =%*s%#.*lx\n", regs->name,
- (int)(28 - strlen(regs->name)), "",
- pci_field_width(regs->size),
- pci_read_config(dev, regs->offset, regs->size));
+ bar_cnt = (header_type == PCI_HEADER_TYPE_NORMAL) ? 6 : 2;
+
+ printf("ID Base Size Width Type\n");
+ printf("----------------------------------------------------------\n");
+
+ bar_id = 0;
+ reg_addr = PCI_BASE_ADDRESS_0;
+ while (bar_cnt) {
+ dm_pci_read_config32(dev, reg_addr, &base_low);
+ dm_pci_write_config32(dev, reg_addr, 0xffffffff);
+ dm_pci_read_config32(dev, reg_addr, &size_low);
+ dm_pci_write_config32(dev, reg_addr, base_low);
+ reg_addr += 4;
+
+ base = base_low & ~0xf;
+ size = size_low & ~0xf;
+ base_high = 0x0;
+ size_high = 0xffffffff;
+ is_64 = 0;
+ prefetchable = base_low & PCI_BASE_ADDRESS_MEM_PREFETCH;
+ is_io = base_low & PCI_BASE_ADDRESS_SPACE_IO;
+ mem_type = base_low & PCI_BASE_ADDRESS_MEM_TYPE_MASK;
+
+ if (mem_type == PCI_BASE_ADDRESS_MEM_TYPE_64) {
+ dm_pci_read_config32(dev, reg_addr, &base_high);
+ dm_pci_write_config32(dev, reg_addr, 0xffffffff);
+ dm_pci_read_config32(dev, reg_addr, &size_high);
+ dm_pci_write_config32(dev, reg_addr, base_high);
+ bar_cnt--;
+ reg_addr += 4;
+ is_64 = 1;
+ }
+
+ base = base | ((u64)base_high << 32);
+ size = size | ((u64)size_high << 32);
+
+ if ((!is_64 && size_low) || (is_64 && size)) {
+ size = ~size + 1;
+ printf(" %d %#018llx %#018llx %d %s %s\n",
+ bar_id, (unsigned long long)base,
+ (unsigned long long)size, is_64 ? 64 : 32,
+ is_io ? "I/O" : "MEM",
+ prefetchable ? "Prefetchable" : "");
+ }
+
+ bar_id++;
+ bar_cnt--;
}
+
+ return 0;
}
-#endif
static struct pci_reg_info regs_start[] = {
{ "vendor ID", PCI_SIZE_16, PCI_VENDOR_ID },
*
* @dev: Bus+Device+Function number
*/
-#ifdef CONFIG_DM_PCI
-void pci_header_show(struct udevice *dev)
-#else
-void pci_header_show(pci_dev_t dev)
-#endif
+static void pci_header_show(struct udevice *dev)
{
-#ifdef CONFIG_DM_PCI
unsigned long class, header_type;
dm_pci_read_config(dev, PCI_CLASS_CODE, &class, PCI_SIZE_8);
dm_pci_read_config(dev, PCI_HEADER_TYPE, &header_type, PCI_SIZE_8);
-#else
- u8 class, header_type;
-
- pci_read_config_byte(dev, PCI_CLASS_CODE, &class);
- pci_read_config_byte(dev, PCI_HEADER_TYPE, &header_type);
-#endif
pci_show_regs(dev, regs_start);
printf(" class code = 0x%.2x (%s)\n", (int)class,
pci_class_str(class));
}
}
-void pciinfo_header(int busnum, bool short_listing)
+static void pciinfo_header(int busnum, bool short_listing)
{
printf("Scanning PCI devices on bus %d\n", busnum);
}
}
-#ifdef CONFIG_DM_PCI
/**
* pci_header_show_brief() - Show the short-form PCI device header
*
{
struct udevice *dev;
- pciinfo_header(bus->seq, short_listing);
+ pciinfo_header(dev_seq(bus), short_listing);
for (device_find_first_child(bus, &dev);
dev;
device_find_next_child(&dev)) {
- struct pci_child_platdata *pplat;
+ struct pci_child_plat *pplat;
- pplat = dev_get_parent_platdata(dev);
+ pplat = dev_get_parent_plat(dev);
if (short_listing) {
- printf("%02x.%02x.%02x ", bus->seq,
+ printf("%02x.%02x.%02x ", dev_seq(bus),
PCI_DEV(pplat->devfn), PCI_FUNC(pplat->devfn));
pci_header_show_brief(dev);
} else {
- printf("\nFound PCI device %02x.%02x.%02x:\n", bus->seq,
+ printf("\nFound PCI device %02x.%02x.%02x:\n",
+ dev_seq(bus),
PCI_DEV(pplat->devfn), PCI_FUNC(pplat->devfn));
pci_header_show(dev);
}
}
}
-#else
-
-/**
- * pci_header_show_brief() - Show the short-form PCI device header
- *
- * Reads and prints the header of the specified PCI device in short form.
- *
- * @dev: Bus+Device+Function number
- */
-void pci_header_show_brief(pci_dev_t dev)
-{
- u16 vendor, device;
- u8 class, subclass;
-
- pci_read_config_word(dev, PCI_VENDOR_ID, &vendor);
- pci_read_config_word(dev, PCI_DEVICE_ID, &device);
- pci_read_config_byte(dev, PCI_CLASS_CODE, &class);
- pci_read_config_byte(dev, PCI_CLASS_SUB_CODE, &subclass);
-
- printf("0x%.4x 0x%.4x %-23s 0x%.2x\n",
- vendor, device,
- pci_class_str(class), subclass);
-}
-
-/**
- * pciinfo() - Show a list of devices on the PCI bus
- *
- * Show information about devices on PCI bus. Depending on @short_pci_listing
- * the output will be more or less exhaustive.
- *
- * @bus_num: The number of the bus to be scanned
- * @short_pci_listing: true to use short form, showing only a brief header
- * for each device
- */
-void pciinfo(int bus_num, int short_pci_listing)
-{
- struct pci_controller *hose = pci_bus_to_hose(bus_num);
- int device;
- int function;
- unsigned char header_type;
- unsigned short vendor_id;
- pci_dev_t dev;
- int ret;
-
- if (!hose)
- return;
-
- pciinfo_header(bus_num, short_pci_listing);
-
- for (device = 0; device < PCI_MAX_PCI_DEVICES; device++) {
- header_type = 0;
- vendor_id = 0;
- for (function = 0; function < PCI_MAX_PCI_FUNCTIONS;
- function++) {
- /*
- * If this is not a multi-function device, we skip
- * the rest.
- */
- if (function && !(header_type & 0x80))
- break;
-
- dev = PCI_BDF(bus_num, device, function);
-
- if (pci_skip_dev(hose, dev))
- continue;
-
- ret = pci_read_config_word(dev, PCI_VENDOR_ID,
- &vendor_id);
- if (ret)
- goto error;
- if ((vendor_id == 0xFFFF) || (vendor_id == 0x0000))
- continue;
-
- if (!function) {
- pci_read_config_byte(dev, PCI_HEADER_TYPE,
- &header_type);
- }
-
- if (short_pci_listing) {
- printf("%02x.%02x.%02x ", bus_num, device,
- function);
- pci_header_show_brief(dev);
- } else {
- printf("\nFound PCI device %02x.%02x.%02x:\n",
- bus_num, device, function);
- pci_header_show(dev);
- }
- }
- }
-
- return;
-error:
- printf("Cannot read bus configuration: %d\n", ret);
-}
-#endif
-
/**
* get_pci_dev() - Convert the "bus.device.function" identifier into a number
*
if (name[i] == '.') {
memcpy(cnum, &name[iold], i - iold);
cnum[i - iold] = '\0';
- bdfs[n++] = simple_strtoul(cnum, NULL, 16);
+ bdfs[n++] = hextoul(cnum, NULL);
iold = i + 1;
}
}
strcpy(cnum, &name[iold]);
if (n == 0)
n = 1;
- bdfs[n] = simple_strtoul(cnum, NULL, 16);
+ bdfs[n] = hextoul(cnum, NULL);
return PCI_BDF(bdfs[0], bdfs[1], bdfs[2]);
}
-#ifdef CONFIG_DM_PCI
static int pci_cfg_display(struct udevice *dev, ulong addr,
enum pci_size_t size, ulong length)
-#else
-static int pci_cfg_display(pci_dev_t bdf, ulong addr, enum pci_size_t size,
- ulong length)
-#endif
{
#define DISP_LINE_LEN 16
ulong i, nbytes, linebytes;
for (i = 0; i < linebytes; i += byte_size) {
unsigned long val;
-#ifdef CONFIG_DM_PCI
dm_pci_read_config(dev, addr, &val, size);
-#else
- val = pci_read_config(bdf, addr, size);
-#endif
printf(" %0*lx", pci_field_width(size), val);
addr += byte_size;
}
return (rc);
}
-#ifndef CONFIG_DM_PCI
-static int pci_cfg_write (pci_dev_t bdf, ulong addr, ulong size, ulong value)
-{
- if (size == 4) {
- pci_write_config_dword(bdf, addr, value);
- }
- else if (size == 2) {
- ushort val = value & 0xffff;
- pci_write_config_word(bdf, addr, val);
- }
- else {
- u_char val = value & 0xff;
- pci_write_config_byte(bdf, addr, val);
- }
- return 0;
-}
-#endif
-
-#ifdef CONFIG_DM_PCI
static int pci_cfg_modify(struct udevice *dev, ulong addr, ulong size,
ulong value, int incrflag)
-#else
-static int pci_cfg_modify(pci_dev_t bdf, ulong addr, ulong size, ulong value,
- int incrflag)
-#endif
{
ulong i;
int nbytes;
*/
do {
printf("%08lx:", addr);
-#ifdef CONFIG_DM_PCI
dm_pci_read_config(dev, addr, &val, size);
-#else
- val = pci_read_config(bdf, addr, size);
-#endif
printf(" %0*lx", pci_field_width(size), val);
nbytes = cli_readline(" ? ");
#endif
else {
char *endp;
- i = simple_strtoul(console_buffer, &endp, 16);
+ i = hextoul(console_buffer, &endp);
nbytes = endp - console_buffer;
if (nbytes) {
/* good enough to not time out
*/
bootretry_reset_cmd_timeout();
-#ifdef CONFIG_DM_PCI
dm_pci_write_config(dev, addr, i, size);
-#else
- pci_cfg_write(bdf, addr, size, i);
-#endif
if (incrflag)
addr += size;
}
return 0;
}
+static const struct pci_flag_info {
+ uint flag;
+ const char *name;
+} pci_flag_info[] = {
+ { PCI_REGION_IO, "io" },
+ { PCI_REGION_PREFETCH, "prefetch" },
+ { PCI_REGION_SYS_MEMORY, "sysmem" },
+ { PCI_REGION_RO, "readonly" },
+ { PCI_REGION_IO, "io" },
+};
+
+static void pci_show_regions(struct udevice *bus)
+{
+ struct pci_controller *hose = dev_get_uclass_priv(bus);
+ const struct pci_region *reg;
+ int i, j;
+
+ if (!hose) {
+ printf("Bus '%s' is not a PCI controller\n", bus->name);
+ return;
+ }
+
+ printf("# %-18s %-18s %-18s %s\n", "Bus start", "Phys start", "Size",
+ "Flags");
+ for (i = 0, reg = hose->regions; i < hose->region_count; i++, reg++) {
+ printf("%d %#018llx %#018llx %#018llx ", i,
+ (unsigned long long)reg->bus_start,
+ (unsigned long long)reg->phys_start,
+ (unsigned long long)reg->size);
+ if (!(reg->flags & PCI_REGION_TYPE))
+ printf("mem ");
+ for (j = 0; j < ARRAY_SIZE(pci_flag_info); j++) {
+ if (reg->flags & pci_flag_info[j].flag)
+ printf("%s ", pci_flag_info[j].name);
+ }
+ printf("\n");
+ }
+}
+
/* PCI Configuration Space access commands
*
* Syntax:
* pci modify[.b, .w, .l] bus.device.function [addr]
* pci write[.b, .w, .l] bus.device.function addr value
*/
-static int do_pci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_pci(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
ulong addr = 0, value = 0, cmd_size = 0;
enum pci_size_t size = PCI_SIZE_32;
-#ifdef CONFIG_DM_PCI
struct udevice *dev, *bus;
-#else
- pci_dev_t dev;
-#endif
int busnum = 0;
pci_dev_t bdf = 0;
char cmd = 's';
cmd_size = cmd_get_data_size(argv[1], 4);
size = (cmd_size == 4) ? PCI_SIZE_32 : cmd_size - 1;
if (argc > 3)
- addr = simple_strtoul(argv[3], NULL, 16);
+ addr = hextoul(argv[3], NULL);
if (argc > 4)
- value = simple_strtoul(argv[4], NULL, 16);
+ value = hextoul(argv[4], NULL);
case 'h': /* header */
+ case 'b': /* bars */
if (argc < 3)
goto usage;
if ((bdf = get_pci_dev(argv[2])) == -1)
return 1;
break;
-#ifdef CONFIG_CMD_PCI_ENUM
case 'e':
- break;
-#endif
+ pci_init();
+ return 0;
+ case 'r': /* no break */
default: /* scan bus */
value = 1; /* short listing */
if (argc > 1) {
- if (argv[argc-1][0] == 'l') {
+ if (cmd != 'r' && argv[argc-1][0] == 'l') {
value = 0;
argc--;
}
if (argc > 1)
- busnum = simple_strtoul(argv[1], NULL, 16);
+ busnum = hextoul(argv[1], NULL);
}
-#ifdef CONFIG_DM_PCI
ret = uclass_get_device_by_seq(UCLASS_PCI, busnum, &bus);
if (ret) {
printf("No such bus\n");
return CMD_RET_FAILURE;
}
- pciinfo(bus, value);
-#else
- pciinfo(busnum, value);
-#endif
+ if (cmd == 'r')
+ pci_show_regions(bus);
+ else
+ pciinfo(bus, value);
return 0;
}
-#ifdef CONFIG_DM_PCI
ret = dm_pci_bus_find_bdf(bdf, &dev);
if (ret) {
printf("No such device\n");
return CMD_RET_FAILURE;
}
-#else
- dev = bdf;
-#endif
switch (argv[1][0]) {
case 'h': /* header */
break;
case 'd': /* display */
return pci_cfg_display(dev, addr, size, value);
-#ifdef CONFIG_CMD_PCI_ENUM
- case 'e':
-# ifdef CONFIG_DM_PCI
- printf("This command is not yet supported with driver model\n");
-# else
- pci_init();
-# endif
- break;
-#endif
case 'n': /* next */
if (argc < 4)
goto usage;
case 'w': /* write */
if (argc < 5)
goto usage;
-#ifdef CONFIG_DM_PCI
ret = dm_pci_write_config(dev, addr, value, size);
-#else
- ret = pci_cfg_write(dev, addr, size, value);
-#endif
break;
+ case 'b': /* bars */
+ return pci_bar_show(dev);
default:
ret = CMD_RET_USAGE;
break;
static char pci_help_text[] =
"[bus] [long]\n"
" - short or long list of PCI devices on bus 'bus'\n"
-#ifdef CONFIG_CMD_PCI_ENUM
"pci enum\n"
- " - re-enumerate PCI buses\n"
-#endif
+ " - Enumerate PCI buses\n"
"pci header b.d.f\n"
" - show header of PCI device 'bus.device.function'\n"
+ "pci bar b.d.f\n"
+ " - show BARs base and size for device b.d.f'\n"
+ "pci regions\n"
+ " - show PCI regions\n"
"pci display[.b, .w, .l] b.d.f [address] [# of objects]\n"
" - display PCI configuration space (CFG)\n"
"pci next[.b, .w, .l] b.d.f address\n"
projects / platform / kernel / u-boot.git / blobdiff