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bcma: add bcma_core_pci_fixcfg()

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This code is based on code from pcicore_fixcfg() in brcmsmac. This
patch is part of the move of pci specific code from brcmsmac to bcma.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Hauke Mehrtens 2012-04-29 02:18:51 +02:00 committed by John W. Linville
parent 29f6b3d823
commit ec00f37321
2 changed files with 24 additions and 0 deletions
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19
drivers/bcma/driver_pci.c
View file

@ -168,12 +168,31 @@ static void bcma_pcicore_serdes_workaround(struct bcma_drv_pci *pc)
tmp & ~BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN);
}
static void bcma_core_pci_fixcfg(struct bcma_drv_pci *pc)
{
struct bcma_device *core = pc->core;
u16 val16, core_index;
uint regoff;
regoff = BCMA_CORE_PCI_SPROM(BCMA_CORE_PCI_SPROM_PI_OFFSET);
core_index = (u16)core->core_index;
val16 = pcicore_read16(pc, regoff);
if (((val16 & BCMA_CORE_PCI_SPROM_PI_MASK) >> BCMA_CORE_PCI_SPROM_PI_SHIFT)
!= core_index) {
val16 = (core_index << BCMA_CORE_PCI_SPROM_PI_SHIFT) |
(val16 & ~BCMA_CORE_PCI_SPROM_PI_MASK);
pcicore_write16(pc, regoff, val16);
}
}
/**************************************************
* Init.
**************************************************/
static void __devinit bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc)
{
bcma_core_pci_fixcfg(pc);
bcma_pcicore_serdes_workaround(pc);
}

5
include/linux/bcma/bcma_driver_pci.h
View file

@ -87,6 +87,9 @@ struct pci_dev;
#define BCMA_CORE_PCI_PCICFG2 0x0600 /* PCI config space 2 (rev >= 8) */
#define BCMA_CORE_PCI_PCICFG3 0x0700 /* PCI config space 3 (rev >= 8) */
#define BCMA_CORE_PCI_SPROM(wordoffset) (0x0800 + ((wordoffset) * 2)) /* SPROM shadow area (72 bytes) */
#define BCMA_CORE_PCI_SPROM_PI_OFFSET 0 /* first word */
#define BCMA_CORE_PCI_SPROM_PI_MASK 0xf000 /* bit 15:12 */
#define BCMA_CORE_PCI_SPROM_PI_SHIFT 12 /* bit 15:12 */
/* SBtoPCIx */
#define BCMA_CORE_PCI_SBTOPCI_MEM 0x00000000
@ -202,7 +205,9 @@ struct bcma_drv_pci {
};
/* Register access */
#define pcicore_read16(pc, offset) bcma_read16((pc)->core, offset)
#define pcicore_read32(pc, offset) bcma_read32((pc)->core, offset)
#define pcicore_write16(pc, offset, val) bcma_write16((pc)->core, offset, val)
#define pcicore_write32(pc, offset, val) bcma_write32((pc)->core, offset, val)
extern void __devinit bcma_core_pci_init(struct bcma_drv_pci *pc);