diff options
| author | Finley Xiao <finley.xiao@rock-chips.com> | 2019-09-17 10:19:00 +0200 |
|---|---|---|
| committer | Heiko Stuebner <heiko.stuebner@theobroma-systems.com> | 2019-11-05 20:53:30 +0100 |
| commit | e40781098f56dab52e92b7651d87b38805536d28 (patch) | |
| tree | b73483ceda7fad8ef883368561207beebedcb127 /drivers/clk/rockchip/clk-px30.c | |
| parent | 762539d6999caa1d9a916a4ce72004977b2433cf (diff) | |
| download | lwn-e40781098f56dab52e92b7651d87b38805536d28.tar.gz lwn-e40781098f56dab52e92b7651d87b38805536d28.zip | |
clk: rockchip: Add div50 clocks for px30 sdmmc, emmc, sdio and nandc
Some IPs, such as NAND, EMMC, SDIO and SDMMC need clock of 50% duty
cycle, divfree50 can generate clock of 50% duty cycle even in odd
value divisor.
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20190917081903.25139-2-heiko@sntech.de
Diffstat (limited to 'drivers/clk/rockchip/clk-px30.c')
| -rw-r--r-- | drivers/clk/rockchip/clk-px30.c | 44 |
1 files changed, 40 insertions, 4 deletions
diff --git a/drivers/clk/rockchip/clk-px30.c b/drivers/clk/rockchip/clk-px30.c index 3a501896b280..a973394f3d65 100644 --- a/drivers/clk/rockchip/clk-px30.c +++ b/drivers/clk/rockchip/clk-px30.c @@ -167,6 +167,10 @@ PNAME(mux_uart5_p) = { "clk_uart5_src", "clk_uart5_np5", "clk_uart5_frac" }; PNAME(mux_cif_out_p) = { "xin24m", "dummy_cpll", "npll", "usb480m" }; PNAME(mux_dclk_vopb_p) = { "dclk_vopb_src", "dclk_vopb_frac", "xin24m" }; PNAME(mux_dclk_vopl_p) = { "dclk_vopl_src", "dclk_vopl_frac", "xin24m" }; +PNAME(mux_nandc_p) = { "clk_nandc_div", "clk_nandc_div50" }; +PNAME(mux_sdio_p) = { "clk_sdio_div", "clk_sdio_div50" }; +PNAME(mux_emmc_p) = { "clk_emmc_div", "clk_emmc_div50" }; +PNAME(mux_sdmmc_p) = { "clk_sdmmc_div", "clk_sdmmc_div50" }; PNAME(mux_gmac_p) = { "clk_gmac_src", "gmac_clkin" }; PNAME(mux_gmac_rmii_sel_p) = { "clk_gmac_rx_tx_div20", "clk_gmac_rx_tx_div2" }; PNAME(mux_rtc32k_pmu_p) = { "xin32k", "pmu_pvtm_32k", "clk_rtc32k_frac", }; @@ -460,16 +464,40 @@ static struct rockchip_clk_branch px30_clk_branches[] __initdata = { /* PD_MMC_NAND */ GATE(HCLK_MMC_NAND, "hclk_mmc_nand", "hclk_peri_pre", 0, PX30_CLKGATE_CON(6), 0, GFLAGS), - COMPOSITE(SCLK_NANDC, "clk_nandc", mux_gpll_cpll_npll_p, 0, + COMPOSITE(SCLK_NANDC_DIV, "clk_nandc_div", mux_gpll_cpll_npll_p, 0, PX30_CLKSEL_CON(15), 6, 2, MFLAGS, 0, 5, DFLAGS, + PX30_CLKGATE_CON(5), 11, GFLAGS), + COMPOSITE(SCLK_NANDC_DIV50, "clk_nandc_div50", mux_gpll_cpll_npll_p, 0, + PX30_CLKSEL_CON(15), 6, 2, MFLAGS, 8, 5, DFLAGS, + PX30_CLKGATE_CON(5), 12, GFLAGS), + COMPOSITE_NODIV(SCLK_NANDC, "clk_nandc", mux_nandc_p, + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + PX30_CLKSEL_CON(15), 15, 1, MFLAGS, PX30_CLKGATE_CON(5), 13, GFLAGS), - COMPOSITE(SCLK_SDIO, "clk_sdio", mux_gpll_cpll_npll_xin24m_p, 0, + COMPOSITE(SCLK_SDIO_DIV, "clk_sdio_div", mux_gpll_cpll_npll_xin24m_p, 0, PX30_CLKSEL_CON(18), 14, 2, MFLAGS, 0, 8, DFLAGS, + PX30_CLKGATE_CON(6), 1, GFLAGS), + COMPOSITE_DIV_OFFSET(SCLK_SDIO_DIV50, "clk_sdio_div50", + mux_gpll_cpll_npll_xin24m_p, 0, + PX30_CLKSEL_CON(18), 14, 2, MFLAGS, + PX30_CLKSEL_CON(19), 0, 8, DFLAGS, + PX30_CLKGATE_CON(6), 2, GFLAGS), + COMPOSITE_NODIV(SCLK_SDIO, "clk_sdio", mux_sdio_p, + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + PX30_CLKSEL_CON(19), 15, 1, MFLAGS, PX30_CLKGATE_CON(6), 3, GFLAGS), - COMPOSITE(SCLK_EMMC, "clk_emmc", mux_gpll_cpll_npll_xin24m_p, 0, + COMPOSITE(SCLK_EMMC_DIV, "clk_emmc_div", mux_gpll_cpll_npll_xin24m_p, 0, PX30_CLKSEL_CON(20), 14, 2, MFLAGS, 0, 8, DFLAGS, + PX30_CLKGATE_CON(6), 4, GFLAGS), + COMPOSITE_DIV_OFFSET(SCLK_EMMC_DIV50, "clk_emmc_div50", mux_gpll_cpll_npll_xin24m_p, 0, + PX30_CLKSEL_CON(20), 14, 2, MFLAGS, + PX30_CLKSEL_CON(21), 0, 8, DFLAGS, + PX30_CLKGATE_CON(6), 5, GFLAGS), + COMPOSITE_NODIV(SCLK_EMMC, "clk_emmc", mux_emmc_p, + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + PX30_CLKSEL_CON(21), 15, 1, MFLAGS, PX30_CLKGATE_CON(6), 6, GFLAGS), COMPOSITE(SCLK_SFC, "clk_sfc", mux_gpll_cpll_p, 0, @@ -494,8 +522,16 @@ static struct rockchip_clk_branch px30_clk_branches[] __initdata = { /* PD_SDCARD */ GATE(0, "hclk_sdmmc_pre", "hclk_peri_pre", 0, PX30_CLKGATE_CON(6), 12, GFLAGS), - COMPOSITE(SCLK_SDMMC, "clk_sdmmc", mux_gpll_cpll_npll_xin24m_p, 0, + COMPOSITE(SCLK_SDMMC_DIV, "clk_sdmmc_div", mux_gpll_cpll_npll_xin24m_p, 0, PX30_CLKSEL_CON(16), 14, 2, MFLAGS, 0, 8, DFLAGS, + PX30_CLKGATE_CON(6), 13, GFLAGS), + COMPOSITE_DIV_OFFSET(SCLK_SDMMC_DIV50, "clk_sdmmc_div50", mux_gpll_cpll_npll_xin24m_p, 0, + PX30_CLKSEL_CON(16), 14, 2, MFLAGS, + PX30_CLKSEL_CON(17), 0, 8, DFLAGS, + PX30_CLKGATE_CON(6), 14, GFLAGS), + COMPOSITE_NODIV(SCLK_SDMMC, "clk_sdmmc", mux_sdmmc_p, + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + PX30_CLKSEL_CON(17), 15, 1, MFLAGS, PX30_CLKGATE_CON(6), 15, GFLAGS), /* PD_USB */ |