Srini, On 11/15/2016 03:22 PM, Srinivas Kandagatla wrote: > > > On 15/11/16 12:24, Stanimir Varbanov wrote: >> Hi Srini, >> >> On 11/14/2016 01:15 PM, Srinivas Kandagatla wrote: >>> This patch adds support to msm8996/apq8096 pcie, MSM8996 supports >>> Gen 1/2, One lane, 3 pcie root-complex with support to MSI and >>> legacy interrupts and it conforms to PCI Express Base 2.1 specification. >>> >>> This patch adds post_init callback to qcom_pcie_ops, as this is pcie >>> pipe clocks are only setup after the phy is powered on. >>> It also adds ltssm_enable callback as it is very much different to other >>> supported SOCs in the driver. >>> >>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> >> >> With below comments addressed: >> >> Acked-by: Stanimir Varbanov <svarbanov@xxxxxxxxxx> > Thanks for the ack. >> >>> --- >>> .../devicetree/bindings/pci/qcom,pcie.txt | 67 +++++++- >>> drivers/pci/host/pcie-qcom.c | 177 >>> ++++++++++++++++++++- >>> 2 files changed, 238 insertions(+), 6 deletions(-) >>> >> >> <snip> >> >>> diff --git a/drivers/pci/host/pcie-qcom.c b/drivers/pci/host/pcie-qcom.c >>> index 3593640..03ba6b1 100644 >>> --- a/drivers/pci/host/pcie-qcom.c >>> +++ b/drivers/pci/host/pcie-qcom.c >>> @@ -36,11 +36,19 @@ >>> >>> #include "pcie-designware.h" >>> >>> +#define PCIE20_PARF_DBI_BASE_ADDR 0x168 >> >> This is already defined few rows below, please drop it. >> > Yep, will remove this. >>> + >>> +#define PCIE20_PARF_SYS_CTRL 0x00 >>> #define PCIE20_PARF_PHY_CTRL 0x40 >>> #define PCIE20_PARF_PHY_REFCLK 0x4C >>> #define PCIE20_PARF_DBI_BASE_ADDR 0x168 >>> #define PCIE20_PARF_SLV_ADDR_SPACE_SIZE 0x16c >>> +#define PCIE20_PARF_MHI_CLOCK_RESET_CTRL 0x174 >>> #define PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT 0x178 >>> +#define MSM8996_PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT 0x1A8 >> >> I don't like MSM8996_ prefix. Could you invent a macro which depending >> on controller selects proper offset? > > maybe some like this ?? > > #define PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2 0x1A8 No, I wanted to preserve the name of the register offset. By that way in the next pcie controller version we do not need to have PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V3. I was thinking for something like PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT(ver) \ ((ver) == VERSION_1 ? 0x178 : 0x1A8) But you will need to extend qcom_pcie_ops with new member to store the version. It's up to you ... or we can fix it when new version of the controller appear. regards, Stan -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
