diff options
| author | Chanho Park <chanho61.park@samsung.com> | 2022-05-04 16:51:48 +0900 |
|---|---|---|
| committer | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2022-05-10 19:19:34 +0200 |
| commit | 69a21d53381722c9fe0d232b6c335be5e7e0f11d (patch) | |
| tree | 0cbc29c69cbd8ba908975315cd22e921d3bfc968 /drivers/clk | |
| parent | ceb4c8b3c6b9f461d88ddc8c4d9bf19efaebe824 (diff) | |
clk: samsung: exynosautov9: add cmu_busmc clock support
CMU_BUSMC is responsible to control clocks of BLK_BUSMC which represents
Data/Peri buses. Most clocks except PDMA/SPDMA are not necessary to
be controlled by HLOS. So, this adds PDMA/SPDMA gate clocks.
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Link: https://lore.kernel.org/r/20220504075154.58819-7-chanho61.park@samsung.com
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/samsung/clk-exynosautov9.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/clk/samsung/clk-exynosautov9.c b/drivers/clk/samsung/clk-exynosautov9.c index b3ea586c0d21..aaa78b921fde 100644 --- a/drivers/clk/samsung/clk-exynosautov9.c +++ b/drivers/clk/samsung/clk-exynosautov9.c @@ -957,6 +957,58 @@ static void __init exynosautov9_cmu_top_init(struct device_node *np) CLK_OF_DECLARE(exynosautov9_cmu_top, "samsung,exynosautov9-cmu-top", exynosautov9_cmu_top_init); +/* ---- CMU_BUSMC ---------------------------------------------------------- */ + +/* Register Offset definitions for CMU_BUSMC (0x1b200000) */ +#define PLL_CON0_MUX_CLKCMU_BUSMC_BUS_USER 0x0600 +#define CLK_CON_DIV_DIV_CLK_BUSMC_BUSP 0x1800 +#define CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_PDMA0_IPCLKPORT_PCLK 0x2078 +#define CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_SPDMA_IPCLKPORT_PCLK 0x2080 + +static const unsigned long busmc_clk_regs[] __initconst = { + PLL_CON0_MUX_CLKCMU_BUSMC_BUS_USER, + CLK_CON_DIV_DIV_CLK_BUSMC_BUSP, + CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_PDMA0_IPCLKPORT_PCLK, + CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_SPDMA_IPCLKPORT_PCLK, +}; + +/* List of parent clocks for Muxes in CMU_BUSMC */ +PNAME(mout_busmc_bus_user_p) = { "oscclk", "dout_clkcmu_busmc_bus" }; + +static const struct samsung_mux_clock busmc_mux_clks[] __initconst = { + MUX(CLK_MOUT_BUSMC_BUS_USER, "mout_busmc_bus_user", + mout_busmc_bus_user_p, PLL_CON0_MUX_CLKCMU_BUSMC_BUS_USER, 4, 1), +}; + +static const struct samsung_div_clock busmc_div_clks[] __initconst = { + DIV(CLK_DOUT_BUSMC_BUSP, "dout_busmc_busp", "mout_busmc_bus_user", + CLK_CON_DIV_DIV_CLK_BUSMC_BUSP, 0, 3), +}; + +static const struct samsung_gate_clock busmc_gate_clks[] __initconst = { + GATE(CLK_GOUT_BUSMC_PDMA0_PCLK, "gout_busmc_pdma0_pclk", + "dout_busmc_busp", + CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_PDMA0_IPCLKPORT_PCLK, 21, + 0, 0), + GATE(CLK_GOUT_BUSMC_SPDMA_PCLK, "gout_busmc_spdma_pclk", + "dout_busmc_busp", + CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_SPDMA_IPCLKPORT_PCLK, 21, + 0, 0), +}; + +static const struct samsung_cmu_info busmc_cmu_info __initconst = { + .mux_clks = busmc_mux_clks, + .nr_mux_clks = ARRAY_SIZE(busmc_mux_clks), + .div_clks = busmc_div_clks, + .nr_div_clks = ARRAY_SIZE(busmc_div_clks), + .gate_clks = busmc_gate_clks, + .nr_gate_clks = ARRAY_SIZE(busmc_gate_clks), + .nr_clk_ids = BUSMC_NR_CLK, + .clk_regs = busmc_clk_regs, + .nr_clk_regs = ARRAY_SIZE(busmc_clk_regs), + .clk_name = "dout_clkcmu_busmc_bus", +}; + /* ---- CMU_CORE ----------------------------------------------------------- */ /* Register Offset definitions for CMU_CORE (0x1b030000) */ @@ -1075,6 +1127,9 @@ static int __init exynosautov9_cmu_probe(struct platform_device *pdev) static const struct of_device_id exynosautov9_cmu_of_match[] = { { + .compatible = "samsung,exynosautov9-cmu-busmc", + .data = &busmc_cmu_info, + }, { .compatible = "samsung,exynosautov9-cmu-core", .data = &core_cmu_info, }, { |