Messages in this thread Patch in this message | | | From | "Z.q. Hou" <> | Subject | [PATCHv5 19/20] PCI: mobiveil: Add 8-bit and 16-bit register accessors | Date | Fri, 12 Apr 2019 08:37:05 +0000 |
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From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
There are some 8-bit and 16-bit registers in PCIe configuration space, so add accessors for them.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Reviewed-by: Minghuan Lian <Minghuan.Lian@nxp.com> Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in> --- V5: - Corrected and retouched the subject and changelog. - No functionality change.
drivers/pci/controller/pcie-mobiveil.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c index 411e9779da12..456adfee393c 100644 --- a/drivers/pci/controller/pcie-mobiveil.c +++ b/drivers/pci/controller/pcie-mobiveil.c @@ -268,11 +268,31 @@ static u32 csr_readl(struct mobiveil_pcie *pcie, u32 off) return csr_read(pcie, off, 0x4); } +static u32 csr_readw(struct mobiveil_pcie *pcie, u32 off) +{ + return csr_read(pcie, off, 0x2); +} + +static u32 csr_readb(struct mobiveil_pcie *pcie, u32 off) +{ + return csr_read(pcie, off, 0x1); +} + static void csr_writel(struct mobiveil_pcie *pcie, u32 val, u32 off) { csr_write(pcie, val, off, 0x4); } +static void csr_writew(struct mobiveil_pcie *pcie, u32 val, u32 off) +{ + csr_write(pcie, val, off, 0x2); +} + +static void csr_writeb(struct mobiveil_pcie *pcie, u32 val, u32 off) +{ + csr_write(pcie, val, off, 0x1); +} + static bool mobiveil_pcie_link_up(struct mobiveil_pcie *pcie) { return (csr_readl(pcie, LTSSM_STATUS) & -- 2.17.1
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