diff options
| author | Greentime Hu <greentime.hu@sifive.com> | 2021-05-04 13:59:35 +0300 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2021-05-04 14:26:09 +0300 |
| commit | c61287bf17836b67e0b649343778bb4a659bd70d (patch) | |
| tree | 5595fa2eb1f2bac2b6a9367a361facac2fd2cadd /drivers/clk/sifive/sifive-prci.h | |
| parent | a38fd8748464831584a19438cbb3082b5a2dab15 (diff) | |
| download | linux-c61287bf17836b67e0b649343778bb4a659bd70d.tar.xz | |
clk: sifive: Add pcie_aux clock in prci driver for PCIe driver
We add pcie_aux clock in this patch so that pcie driver can use
clk_prepare_enable() and clk_disable_unprepare() to enable and disable
pcie_aux clock.
Link: https://lore.kernel.org/r/20210504105940.100004-2-greentime.hu@sifive.com
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/sifive/sifive-prci.h')
| -rw-r--r-- | drivers/clk/sifive/sifive-prci.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/clk/sifive/sifive-prci.h b/drivers/clk/sifive/sifive-prci.h index dbdbd1722688..022c67cf053c 100644 --- a/drivers/clk/sifive/sifive-prci.h +++ b/drivers/clk/sifive/sifive-prci.h @@ -67,6 +67,11 @@ #define PRCI_DDRPLLCFG1_CKE_SHIFT 31 #define PRCI_DDRPLLCFG1_CKE_MASK (0x1 << PRCI_DDRPLLCFG1_CKE_SHIFT) +/* PCIEAUX */ +#define PRCI_PCIE_AUX_OFFSET 0x14 +#define PRCI_PCIE_AUX_EN_SHIFT 0 +#define PRCI_PCIE_AUX_EN_MASK (0x1 << PRCI_PCIE_AUX_EN_SHIFT) + /* GEMGXLPLLCFG0 */ #define PRCI_GEMGXLPLLCFG0_OFFSET 0x1c #define PRCI_GEMGXLPLLCFG0_DIVR_SHIFT 0 @@ -296,4 +301,8 @@ unsigned long sifive_prci_tlclksel_recalc_rate(struct clk_hw *hw, unsigned long sifive_prci_hfpclkplldiv_recalc_rate(struct clk_hw *hw, unsigned long parent_rate); +int sifive_prci_pcie_aux_clock_is_enabled(struct clk_hw *hw); +int sifive_prci_pcie_aux_clock_enable(struct clk_hw *hw); +void sifive_prci_pcie_aux_clock_disable(struct clk_hw *hw); + #endif /* __SIFIVE_CLK_SIFIVE_PRCI_H */ |