sysmo-bts
/
barebox
9
0
Fork 0
Code Releases Activity

PCI: add some useful debug output 

This makes diagnosing problems in address space allocation
much easier.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Lucas Stach 2016-11-01 09:58:51 +01:00 committed by Sascha Hauer
parent 037fa2fedb
commit a793b694be
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/pci/pci.c
View File

@ -179,6 +179,7 @@ static void setup_device(struct pci_dev *dev, int max_bar)
pr_debug("BAR does not fit within bus IO res\n");
return;
}
pr_debug("pbar%d: allocated at 0x%08x\n", bar, last_io);
pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, last_io);
dev->resource[bar].flags = IORESOURCE_IO;
last_addr = last_io;
@ -197,6 +198,7 @@ static void setup_device(struct pci_dev *dev, int max_bar)
pr_debug("BAR does not fit within bus p-mem res\n");
return;
}
pr_debug("pbar%d: allocated at 0x%08x\n", bar, last_mem_pref);
pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, last_mem_pref);
dev->resource[bar].flags = IORESOURCE_MEM |
IORESOURCE_PREFETCH;
@ -215,6 +217,7 @@ static void setup_device(struct pci_dev *dev, int max_bar)
pr_debug("BAR does not fit within bus np-mem res\n");
return;
}
pr_debug("pbar%d: allocated at 0x%08x\n", bar, last_mem);
pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, last_mem);
dev->resource[bar].flags = IORESOURCE_MEM;
last_addr = last_mem;
@ -286,18 +289,21 @@ static void postscan_setup_bridge(struct pci_dev *dev)
if (last_mem) {
last_mem = ALIGN(last_mem, SZ_1M);
pr_debug("bridge NP limit at 0x%08x\n", last_mem);
pci_write_config_word(dev, PCI_MEMORY_LIMIT,
((last_mem - 1) & 0xfff00000) >> 16);
}
if (last_mem_pref) {
last_mem_pref = ALIGN(last_mem_pref, SZ_1M);
pr_debug("bridge P limit at 0x%08x\n", last_mem_pref);
pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT,
((last_mem_pref - 1) & 0xfff00000) >> 16);
}
if (last_io) {
last_io = ALIGN(last_io, SZ_4K);
pr_debug("bridge IO limit at 0x%08x\n", last_io);
pci_write_config_byte(dev, PCI_IO_LIMIT,
((last_io - 1) & 0x0000f000) >> 8);
pci_write_config_word(dev, PCI_IO_LIMIT_UPPER16,