From: Ed Swarthout <Ed.Swarthout@freescale.com>
Date: Tue, 21 Aug 2007 04:55:33 +0000 (-0500)
Subject: fsl_pci_init - Remove self PCSRBAR allocation
X-Git-Tag: v1.3.0-rc1~8^2~17
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=16e23c3f5dab6937f5109365416808c7f15c122b;p=oweals%2Fu-boot.git

fsl_pci_init - Remove self PCSRBAR allocation

CPU physical address space was being wasted by allocating a
PCSRBAR PCI inbound region to it's memory space.

As a rule, PCSRBAR should be left alone since it does not affect
transactions from self and other masters may have changed it.

Signed-off-by: Ed Swarthout <ed.swarthout@freescale.com>
---

diff --git a/drivers/fsl_pci_init.c b/drivers/fsl_pci_init.c
index 1084dc6b78..3a13eea1f2 100644
--- a/drivers/fsl_pci_init.c
+++ b/drivers/fsl_pci_init.c
@@ -130,9 +130,14 @@ fsl_pci_init(struct pci_controller *hose)
 
 	}
 
-	/* Call setup to allocate PCSRBAR window */
-	pciauto_setup_device(hose, dev, 1, hose->pci_mem,
+	/* Use generic setup_device to initialize standard pci regs,
+	 * but do not allocate any windows since any BAR found (such
+	 * as PCSRBAR) is not in this cpu's memory space.
+	 */
+
+	pciauto_setup_device(hose, dev, 0, hose->pci_mem,
 			     hose->pci_prefetch, hose->pci_io);
+
 #ifndef CONFIG_PCI_NOSCAN
 	printf ("               Scanning PCI bus %02x\n", hose->current_busno);
 	hose->last_busno = pci_hose_scan_bus(hose,hose->current_busno);