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Tue, 20 Oct 2026 06:38:21 +0000 (GMT) Received: from bose.samsungds.net (unknown [107.108.83.9]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20261020063819epsmtip1b9d0f5b3a443078838d012bd1392f65c~gKYQazFrt3255232552epsmtip1E; Tue, 20 Oct 2026 06:38:18 +0000 (GMT) From: Raghav Sharma To: krzk@kernel.org, s.nawrocki@samsung.com, cw00.choi@samsung.com, peter.griffin@linaro.org, alim.akhtar@samsung.com, sboyd@kernel.org, bmasney+clk@redhat.com, jbrunet+clk@baylibre.com, robh@kernel.org, conor+dt@kernel.org, raghav.s@samsung.com Cc: linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, is.gandhi@samsung.com, ts.amit@samsung.com, pokala.reddy@samsung.com Subject: [PATCH v3 08/14] clk: samsung: exynos8855: add block peris clock support Date: Tue, 20 Oct 2026 12:25:52 +0530 Message-Id: <20261020065558.1829402-9-raghav.s@samsung.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261020065558.1829402-1-raghav.s@samsung.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CMS-MailID: 20261020063821epcas5p330286779382151f2cadea1e1e0b447f1 X-Msg-Generator: CA Content-Type: text/plain; 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CMU_PERIS, this provides clocks for PERIS Co-developed-by: Alim Akhtar Signed-off-by: Alim Akhtar Signed-off-by: Raghav Sharma --- drivers/clk/samsung/clk-exynos8855.c | 97 ++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) diff --git a/drivers/clk/samsung/clk-exynos8855.c b/drivers/clk/samsung/clk-exynos8855.c index dcf58f2459b0..12b5ae54b560 100644 --- a/drivers/clk/samsung/clk-exynos8855.c +++ b/drivers/clk/samsung/clk-exynos8855.c @@ -18,7 +18,9 @@ /* NOTE: Must be equal to the last clock ID increased by one */ #define CLKS_NR_TOP (CLKCMU_DOUT_G3D_HTU + 1) #define CLKS_NR_PERIC (CLK_GOUT_USI_PERIC + 1) +#define CLKS_NR_PERIS (CLK_GOUT_WDT1_PERIS + 1) +#define EXYNOS8855_PERIS_GATE_DBG_OFFSET 0x2004 #define EXYNOS8855_PERIC_GATE_DBG_OFFSET 0x2024 #define EXYNOS8855_TOP_GATE_DBG_OFFSET 0x20A0 @@ -1092,6 +1094,98 @@ static const struct samsung_cmu_info peric_cmu_info __initconst = { .memclk_offset = EXYNOS8855_MEMCLK_OFFSET, }; +/* ---- CMU_PERIS --------------------------------------------------------- */ + +/* Register Offset definitions for CMU_PERIS (0x10030000) */ +#define CMU_PERIS_PLL_CON0_MUX_CLKCMU_PERIS_NOC_USER 0x600 +#define CMU_PERIS_CLK_CON_MUX_CLK_PERIS_GIC 0x1000 +#define CMU_PERIS_PLL_CON0_MUX_CLK_PERIS_GIC_USER 0x610 +#define CMU_PERIS_CLK_CON_DIV_CLK_PERIS_NOCP 0x1800 +#define CMU_PERIS_CLK_CON_DIV_CLK_PERIS_OTP 0x1804 +#define CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_CMU_PERIS_IPCLKPORT_PCLK 0x201c +#define CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_SYSREG_PERIS_IPCLKPORT_PCLK 0x2040 +#define CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT0_IPCLKPORT_PCLK 0x2048 +#define CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT1_IPCLKPORT_PCLK 0x204c +#define CMU_PERIS_CONTROLLER_OPTION0_CMU_CTRL 0x800 + +static const unsigned long peris_clk_regs[] __initconst = { + CMU_PERIS_PLL_CON0_MUX_CLKCMU_PERIS_NOC_USER, + CMU_PERIS_CLK_CON_MUX_CLK_PERIS_GIC, + CMU_PERIS_PLL_CON0_MUX_CLK_PERIS_GIC_USER, + CMU_PERIS_CLK_CON_DIV_CLK_PERIS_NOCP, + CMU_PERIS_CLK_CON_DIV_CLK_PERIS_OTP, + CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_CMU_PERIS_IPCLKPORT_PCLK, + CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_SYSREG_PERIS_IPCLKPORT_PCLK, + CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT0_IPCLKPORT_PCLK, + CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT1_IPCLKPORT_PCLK, + CMU_PERIS_CONTROLLER_OPTION0_CMU_CTRL, +}; + +/* List of parent clocks for Muxes in CMU_PERIS */ +PNAME(mout_clkcmu_peris_noc_user_p) = { "oscclk", "dout_clkcmu_peris_noc" }; +PNAME(mout_clk_peris_gic_p) = { "oscclk", "mout_clkcmu_peris_gic_user" }; +PNAME(mout_clkcmu_peris_gic_user_p) = { "oscclk", "dout_clkcmu_peris_gic" }; + +static const struct samsung_mux_clock peris_mux_clks[] __initconst = { + MUX(CLK_MOUT_PERIS_NOC_USER, "mout_clkcmu_peris_noc_user", + mout_clkcmu_peris_noc_user_p, CMU_PERIS_PLL_CON0_MUX_CLKCMU_PERIS_NOC_USER, 4, 1), + MUX(CLK_MOUT_PERIS_GIC, "mout_clk_peris_gic", + mout_clk_peris_gic_p, CMU_PERIS_CLK_CON_MUX_CLK_PERIS_GIC, 0, 1), + MUX(CLK_MOUT_PERIS_GIC_USER, "mout_clkcmu_peris_gic_user", + mout_clkcmu_peris_gic_user_p, CMU_PERIS_PLL_CON0_MUX_CLK_PERIS_GIC_USER, 4, 1), +}; + +static const struct samsung_div_clock peris_div_clks[] __initconst = { + DIV(CLK_DOUT_PERIS_NOCP, "dout_clkcmu_peris_nocp", + "mout_clkcmu_peris_noc_user", CMU_PERIS_CLK_CON_DIV_CLK_PERIS_NOCP, + 0, 4), + DIV(CLK_DOUT_PERIS_OTP, "dout_clkcmu_peris_otp", + "oscclk", CMU_PERIS_CLK_CON_DIV_CLK_PERIS_OTP, + 0, 4), +}; + +static const struct samsung_gate_clock peris_gate_clks[] __initconst = { + GATE(CLK_GOUT_CMU_PERIS, "gout_cmu_peris", + "dout_clkcmu_peris_nocp", + CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_CMU_PERIS_IPCLKPORT_PCLK, + 21, 0, 0), + GATE(CLK_GOUT_SYSREG_PERIS, "gout_sysreg_peris", + "dout_clkcmu_peris_nocp", + CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_SYSREG_PERIS_IPCLKPORT_PCLK, + 21, 0, 0), + GATE(CLK_GOUT_WDT0_PERIS, "gout_wdt0_peris", + "dout_clkcmu_peris_nocp", + CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT0_IPCLKPORT_PCLK, + 21, 0, 0), + GATE(CLK_GOUT_WDT1_PERIS, "gout_wdt1_peris", + "dout_clkcmu_peris_nocp", + CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT1_IPCLKPORT_PCLK, + 21, 0, 0), +}; + +static const unsigned long dcrg_sysreg[] __initconst = { + EXYNOS8855_DRCG_EN_OFFSET, +}; + +static const struct samsung_cmu_info peris_cmu_info __initconst = { + .mux_clks = peris_mux_clks, + .nr_mux_clks = ARRAY_SIZE(peris_mux_clks), + .div_clks = peris_div_clks, + .nr_div_clks = ARRAY_SIZE(peris_div_clks), + .gate_clks = peris_gate_clks, + .nr_gate_clks = ARRAY_SIZE(peris_gate_clks), + .nr_clk_ids = CLKS_NR_PERIS, + .clk_regs = peris_clk_regs, + .nr_clk_regs = ARRAY_SIZE(peris_clk_regs), + .sysreg_clk_regs = dcrg_sysreg, + .nr_sysreg_clk_regs = ARRAY_SIZE(dcrg_sysreg), + .clk_name = "bus", + .auto_clock_gate = true, + .gate_dbg_offset = EXYNOS8855_PERIS_GATE_DBG_OFFSET, + .option_offset = CMU_PERIS_CONTROLLER_OPTION0_CMU_CTRL, + .drcg_offset = EXYNOS8855_DRCG_EN_OFFSET, +}; + static int __init exynos8855_cmu_probe(struct platform_device *pdev) { const struct samsung_cmu_info *info; @@ -1107,6 +1201,9 @@ static const struct of_device_id exynos8855_cmu_of_match[] = { { .compatible = "samsung,exynos8855-cmu-peric", .data = &peric_cmu_info, + }, { + .compatible = "samsung,exynos8855-cmu-peris", + .data = &peris_cmu_info, }, { .compatible = "samsung,exynos8855-cmu-top", .data = &top_cmu_info, -- 2.34.1