diff options
| author | Ray Jui <ray.jui@broadcom.com> | 2016-11-01 01:38:32 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-11-14 22:55:33 +0100 |
| commit | 404349c5c806d56de2b41f48a99402c3c7573af5 (patch) | |
| tree | c903bdc7b17fe91280f28a3f9e20fc87d2da785e /drivers/pci/host/pcie-iproc.c | |
| parent | PCI: iproc: Do not reset PAXC when initializing the driver (diff) | |
| download | linux-404349c5c806d56de2b41f48a99402c3c7573af5.tar.xz linux-404349c5c806d56de2b41f48a99402c3c7573af5.zip | |
PCI: iproc: Add BCMA type
The iProc PCIe driver is currently using type IPROC_PCIE_PAXB for the
following SoCs: NS, NSP, Cygnus, NS2, and Pegasus. In fact, the BCMA-based
NS uses a legacy PAXB controller that is slightly different from the PAXB
controller used in the rest of SoCs, e.g., some registers are missing and
it does not require software configuration of outbound/inbound address
mapping.
Add a new type, IPROC_PCIE_PAXB_BCMA, to allow us to properly support the
BCMA-based NS along with other iProc-based SoCs going forward.
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Diffstat (limited to 'drivers/pci/host/pcie-iproc.c')
| -rw-r--r-- | drivers/pci/host/pcie-iproc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/pci/host/pcie-iproc.c b/drivers/pci/host/pcie-iproc.c index 93b4d619c0ed..912a1cbe561e 100644 --- a/drivers/pci/host/pcie-iproc.c +++ b/drivers/pci/host/pcie-iproc.c @@ -100,6 +100,17 @@ enum iproc_pcie_reg { IPROC_PCIE_MAX_NUM_REG, }; +/* iProc PCIe PAXB BCMA registers */ +static const u16 iproc_pcie_reg_paxb_bcma[] = { + [IPROC_PCIE_CLK_CTRL] = 0x000, + [IPROC_PCIE_CFG_IND_ADDR] = 0x120, + [IPROC_PCIE_CFG_IND_DATA] = 0x124, + [IPROC_PCIE_CFG_ADDR] = 0x1f8, + [IPROC_PCIE_CFG_DATA] = 0x1fc, + [IPROC_PCIE_INTX_EN] = 0x330, + [IPROC_PCIE_LINK_STATUS] = 0xf0c, +}; + /* iProc PCIe PAXB registers */ static const u16 iproc_pcie_reg_paxb[] = { [IPROC_PCIE_CLK_CTRL] = 0x000, @@ -469,6 +480,9 @@ static int iproc_pcie_rev_init(struct iproc_pcie *pcie) const u16 *regs; switch (pcie->type) { + case IPROC_PCIE_PAXB_BCMA: + regs = iproc_pcie_reg_paxb_bcma; + break; case IPROC_PCIE_PAXB: regs = iproc_pcie_reg_paxb; break; |