From: George Kashperko <george@xxxxxxxxxxx>
Move direct master/slave wrappers registers' queries into SSB management code.
Indirect requests to SB management code for wrappers' base/size rather than
direct access to backplane-specific registers will let adding AI-style SSB
buses support without need to alter drivers' code later on.
Signed-off-by: George Kashperko <george@xxxxxxxxxxx>
---
drivers/ssb/driver_gige.c | 2 +-
drivers/ssb/main.c | 8 ++++++--
drivers/usb/host/ohci-ssb.c | 8 ++++----
include/linux/ssb/ssb.h | 4 ++--
4 files changed, 13 insertions(+), 9 deletions(-)
--- linux-wireless-testing.orig/drivers/ssb/driver_gige.c 2011-02-08 00:22:45.000000000 +0200
+++ linux-wireless-testing/drivers/ssb/driver_gige.c 2011-02-17 14:00:33.000000000 +0200
@@ -193,7 +193,7 @@ static int ssb_gige_probe(struct ssb_dev
ssb_device_enable(sdev, 0);
/* Setup BAR0. This is a 64k MMIO region. */
- base = ssb_admatch_base(ssb_read32(sdev, SSB_ADMATCH1));
+ base = ssb_admatch_base(sdev, SSB_ADMATCH1);
gige_pcicfg_write32(dev, PCI_BASE_ADDRESS_0, base);
gige_pcicfg_write32(dev, PCI_BASE_ADDRESS_1, 0);
--- linux-wireless-testing.orig/drivers/ssb/main.c 2011-02-08 00:22:45.000000000 +0200
+++ linux-wireless-testing/drivers/ssb/main.c 2011-02-17 14:00:33.000000000 +0200
@@ -1312,10 +1312,12 @@ error:
}
EXPORT_SYMBOL(ssb_bus_powerup);
-u32 ssb_admatch_base(u32 adm)
+u32 ssb_admatch_base(struct ssb_device *dev, u32 adm)
{
u32 base = 0;
+ adm = ssb_read32(dev, adm);
+
switch (adm & SSB_ADM_TYPE) {
case SSB_ADM_TYPE0:
base = (adm & SSB_ADM_BASE0);
@@ -1336,10 +1338,12 @@ u32 ssb_admatch_base(u32 adm)
}
EXPORT_SYMBOL(ssb_admatch_base);
-u32 ssb_admatch_size(u32 adm)
+u32 ssb_admatch_size(struct ssb_device *dev, u32 adm)
{
u32 size = 0;
+ adm = ssb_read32(dev, adm);
+
switch (adm & SSB_ADM_TYPE) {
case SSB_ADM_TYPE0:
size = ((adm & SSB_ADM_SZ0) >> SSB_ADM_SZ0_SHIFT);
--- linux-wireless-testing.orig/drivers/usb/host/ohci-ssb.c 2011-02-08 00:22:48.000000000 +0200
+++ linux-wireless-testing/drivers/usb/host/ohci-ssb.c 2011-02-17 14:00:33.000000000 +0200
@@ -107,7 +107,7 @@ static int ssb_ohci_attach(struct ssb_de
struct ssb_ohci_device *ohcidev;
struct usb_hcd *hcd;
int err = -ENOMEM;
- u32 tmp, flags = 0;
+ u32 flags = 0;
if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) ||
dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
@@ -118,6 +118,7 @@ static int ssb_ohci_attach(struct ssb_de
flags |= SSB_OHCI_TMSLOW_HOSTMODE;
ssb_device_enable(dev, flags);
} else if (dev->id.coreid == SSB_DEV_USB20_HOST) {
+ u32 tmp;
/*
* USB 2.0 special considerations:
*
@@ -163,9 +164,8 @@ static int ssb_ohci_attach(struct ssb_de
ohcidev = hcd_to_ssb_ohci(hcd);
ohcidev->enable_flags = flags;
- tmp = ssb_read32(dev, SSB_ADMATCH0);
- hcd->rsrc_start = ssb_admatch_base(tmp);
- hcd->rsrc_len = ssb_admatch_size(tmp);
+ hcd->rsrc_start = ssb_admatch_base(dev, SSB_ADMATCH0);
+ hcd->rsrc_len = ssb_admatch_size(dev, SSB_ADMATCH0);
hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs)
goto err_put_hcd;
--- linux-wireless-testing.orig/include/linux/ssb/ssb.h 2011-02-08 00:22:50.000000000 +0200
+++ linux-wireless-testing/include/linux/ssb/ssb.h 2011-02-17 14:00:33.000000000 +0200
@@ -520,8 +520,8 @@ extern int ssb_bus_powerup(struct ssb_bu
/* Various helper functions */
-extern u32 ssb_admatch_base(u32 adm);
-extern u32 ssb_admatch_size(u32 adm);
+extern u32 ssb_admatch_base(struct ssb_device *dev, u32 adm);
+extern u32 ssb_admatch_size(struct ssb_device *dev, u32 adm);
/* PCI device mapping and fixup routines.
* Called from the architecture pcibios init code.
--
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