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authorLinus Torvalds <torvalds@linux-foundation.org>2008-04-21 15:40:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-21 15:40:55 -0700
commit85b375a613085b78531ec86369a51c2f3b922f95 (patch)
tree716437d598de92bbd7acaf24622e9a7d74fc209a /arch/arm/plat-iop/pci.c
parentec965350bb98bd291eb34f6ecddfdcfc36da1e6e (diff)
parentcf816ecb533ab96b883dfdc0db174598b5b5c4d2 (diff)
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Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (212 commits) [ARM] pxa: Phycore pcm-990-specific code for the PXA270 Quick Capture driver [ARM] pxa: V4L2 soc_camera driver for PXA270 [ARM] pxa: restrict availability of pxa2xx PCMCIA drivers [ARM] 5005/1: BAST: Fix kset_name initialiser [ARM] 4967/1: Adds functions to set clkout rate for Samsung S3C2410 [ARM] 4988/1: Add GPIO lib support to the EP93xx [ARM] Add initial sparsemem support [ARM] pxa: initialise PXA devices before platform init code [ARM] 5002/1: tosa: add two more leds [ARM] 5004/1: Tosa: make several unreferenced structures static. [ARM] 5003/1: Shut up sparse warnings [ARM] 4977/2: soc - pxa2xx-ac97 - Add missing clk_enable() [ARM] 4976/1: zylonite: Configure GPIO for WM9713 IRQ line [ARM] 4974/1: Drop unused leds-tosa. [ARM] 4973/1: Tosa: use leds-gpio driver. [ARM] 4972/1: Tosa: convert scoop GPIOs usage to generic gpio code [ARM] 4971/1: pxaficp_ir: provide startup and shutdown hooks [ARM] pxa: lubbock: move mis-placed SPI info [ARM] 4970/1: tosa: correct gpio used for wake up. [ARM] 4966/1: magician: add MFP pin configuration ...
Diffstat (limited to 'arch/arm/plat-iop/pci.c')
-rw-r--r--arch/arm/plat-iop/pci.c79
1 files changed, 54 insertions, 25 deletions
diff --git a/arch/arm/plat-iop/pci.c b/arch/arm/plat-iop/pci.c
index 98d0151..d9bc15a 100644
--- a/arch/arm/plat-iop/pci.c
+++ b/arch/arm/plat-iop/pci.c
@@ -24,6 +24,7 @@
#include <asm/hardware.h>
#include <asm/mach/pci.h>
#include <asm/hardware/iop3xx.h>
+#include <asm/mach-types.h>
// #define DEBUG
@@ -209,8 +210,11 @@ int iop3xx_pci_setup(int nr, struct pci_sys_data *sys)
res[1].flags = IORESOURCE_MEM;
request_resource(&iomem_resource, &res[1]);
- sys->mem_offset = IOP3XX_PCI_LOWER_MEM_PA - IOP3XX_PCI_LOWER_MEM_BA;
- sys->io_offset = IOP3XX_PCI_LOWER_IO_PA - IOP3XX_PCI_LOWER_IO_BA;
+ /*
+ * Use whatever translation is already setup.
+ */
+ sys->mem_offset = IOP3XX_PCI_LOWER_MEM_PA - *IOP3XX_OMWTVR0;
+ sys->io_offset = IOP3XX_PCI_LOWER_IO_PA - *IOP3XX_OIOWTVR;
sys->resource[0] = &res[0];
sys->resource[1] = &res[1];
@@ -250,11 +254,11 @@ void __init iop3xx_atu_setup(void)
*IOP3XX_IATVR2 = PHYS_OFFSET;
/* Outbound window 0 */
- *IOP3XX_OMWTVR0 = IOP3XX_PCI_LOWER_MEM_PA;
+ *IOP3XX_OMWTVR0 = IOP3XX_PCI_LOWER_MEM_BA;
*IOP3XX_OUMWTVR0 = 0;
/* Outbound window 1 */
- *IOP3XX_OMWTVR1 = IOP3XX_PCI_LOWER_MEM_PA + IOP3XX_PCI_MEM_WINDOW_SIZE;
+ *IOP3XX_OMWTVR1 = IOP3XX_PCI_LOWER_MEM_BA + IOP3XX_PCI_MEM_WINDOW_SIZE;
*IOP3XX_OUMWTVR1 = 0;
/* BAR 3 ( Disabled ) */
@@ -265,7 +269,7 @@ void __init iop3xx_atu_setup(void)
/* Setup the I/O Bar
*/
- *IOP3XX_OIOWTVR = IOP3XX_PCI_LOWER_IO_PA;;
+ *IOP3XX_OIOWTVR = IOP3XX_PCI_LOWER_IO_BA;
/* Enable inbound and outbound cycles
*/
@@ -322,34 +326,59 @@ void __init iop3xx_atu_disable(void)
/* Flag to determine whether the ATU is initialized and the PCI bus scanned */
int init_atu;
-void __init iop3xx_pci_preinit(void)
+int iop3xx_get_init_atu(void) {
+ /* check if default has been overridden */
+ if (init_atu != IOP3XX_INIT_ATU_DEFAULT)
+ return init_atu;
+ else
+ return IOP3XX_INIT_ATU_DISABLE;
+}
+
+static void __init iop3xx_atu_debug(void)
{
- if (iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) {
- iop3xx_atu_disable();
- iop3xx_atu_setup();
- }
+ DBG("PCI: Intel IOP3xx PCI init.\n");
+ DBG("PCI: Outbound memory window 0: PCI 0x%08x%08x\n",
+ *IOP3XX_OUMWTVR0, *IOP3XX_OMWTVR0);
+ DBG("PCI: Outbound memory window 1: PCI 0x%08x%08x\n",
+ *IOP3XX_OUMWTVR1, *IOP3XX_OMWTVR1);
+ DBG("PCI: Outbound IO window: PCI 0x%08x\n",
+ *IOP3XX_OIOWTVR);
+
+ DBG("PCI: Inbound memory window 0: PCI 0x%08x%08x 0x%08x -> 0x%08x\n",
+ *IOP3XX_IAUBAR0, *IOP3XX_IABAR0, *IOP3XX_IALR0, *IOP3XX_IATVR0);
+ DBG("PCI: Inbound memory window 1: PCI 0x%08x%08x 0x%08x\n",
+ *IOP3XX_IAUBAR1, *IOP3XX_IABAR1, *IOP3XX_IALR1);
+ DBG("PCI: Inbound memory window 2: PCI 0x%08x%08x 0x%08x -> 0x%08x\n",
+ *IOP3XX_IAUBAR2, *IOP3XX_IABAR2, *IOP3XX_IALR2, *IOP3XX_IATVR2);
+ DBG("PCI: Inbound memory window 3: PCI 0x%08x%08x 0x%08x -> 0x%08x\n",
+ *IOP3XX_IAUBAR3, *IOP3XX_IABAR3, *IOP3XX_IALR3, *IOP3XX_IATVR3);
+
+ DBG("PCI: Expansion ROM window: PCI 0x%08x%08x 0x%08x -> 0x%08x\n",
+ 0, *IOP3XX_ERBAR, *IOP3XX_ERLR, *IOP3XX_ERTVR);
- DBG("PCI: Intel 803xx PCI init code.\n");
DBG("ATU: IOP3XX_ATUCMD=0x%04x\n", *IOP3XX_ATUCMD);
- DBG("ATU: IOP3XX_OMWTVR0=0x%04x, IOP3XX_OIOWTVR=0x%04x\n",
- *IOP3XX_OMWTVR0,
- *IOP3XX_OIOWTVR);
DBG("ATU: IOP3XX_ATUCR=0x%08x\n", *IOP3XX_ATUCR);
- DBG("ATU: IOP3XX_IABAR0=0x%08x IOP3XX_IALR0=0x%08x IOP3XX_IATVR0=%08x\n",
- *IOP3XX_IABAR0, *IOP3XX_IALR0, *IOP3XX_IATVR0);
- DBG("ATU: IOP3XX_OMWTVR0=0x%08x\n", *IOP3XX_OMWTVR0);
- DBG("ATU: IOP3XX_IABAR1=0x%08x IOP3XX_IALR1=0x%08x\n",
- *IOP3XX_IABAR1, *IOP3XX_IALR1);
- DBG("ATU: IOP3XX_ERBAR=0x%08x IOP3XX_ERLR=0x%08x IOP3XX_ERTVR=%08x\n",
- *IOP3XX_ERBAR, *IOP3XX_ERLR, *IOP3XX_ERTVR);
- DBG("ATU: IOP3XX_IABAR2=0x%08x IOP3XX_IALR2=0x%08x IOP3XX_IATVR2=%08x\n",
- *IOP3XX_IABAR2, *IOP3XX_IALR2, *IOP3XX_IATVR2);
- DBG("ATU: IOP3XX_IABAR3=0x%08x IOP3XX_IALR3=0x%08x IOP3XX_IATVR3=%08x\n",
- *IOP3XX_IABAR3, *IOP3XX_IALR3, *IOP3XX_IATVR3);
hook_fault_code(16+6, iop3xx_pci_abort, SIGBUS, "imprecise external abort");
}
+/* for platforms that might be host-bus-adapters */
+void __init iop3xx_pci_preinit_cond(void)
+{
+ if (iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) {
+ iop3xx_atu_disable();
+ iop3xx_atu_setup();
+ iop3xx_atu_debug();
+ }
+}
+
+void __init iop3xx_pci_preinit(void)
+{
+ iop3xx_atu_disable();
+ iop3xx_atu_setup();
+ iop3xx_atu_debug();
+}
+
/* allow init_atu to be user overridden */
static int __init iop3xx_init_atu_setup(char *str)
{