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AJvYcCWWhgRVgGpgPVrLYyHv+SWk46wnJKDeJMU9wuupfcOoZqTLAyKv/SNHE2aMemLLK3B17hXlB1SbCFP4BKsfLtkDgCV5I1hLibG38JjR X-Gm-Message-State: AOJu0YxwfXgrfgZO6W97S/vmhn2djW0E5hQFTZrrOcfHft4/ruBlssB1 u5HPvdgMYFjIbe6q+ayxj/S4UrqrwV4Q3KQgF96Ov3m2G0AYMU2VOadRR1zvRhA= X-Received: by 2002:a4a:ea24:0:b0:5a0:e93:8f7 with SMTP id y4-20020a4aea24000000b005a00e9308f7mr3438031ood.8.1708570957001; Wed, 21 Feb 2024 19:02:37 -0800 (PST) Received: from localhost ([136.62.192.75]) by smtp.gmail.com with ESMTPSA id z6-20020a9d7a46000000b006e43f8eac57sm1793089otm.50.2024.02.21.19.02.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Feb 2024 19:02:36 -0800 (PST) From: Sam Protsenko To: Krzysztof Kozlowski , Sylwester Nawrocki , Chanwoo Choi Cc: Alim Akhtar , Michael Turquette , Stephen Boyd , Rob Herring , Conor Dooley , Tomasz Figa , 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 Subject: [PATCH v2 01/15] dt-bindings: clock: exynos850: Add CMU_CPUCLK0 and CMU_CPUCL1 Date: Wed, 21 Feb 2024 21:02:21 -0600 Message-Id: <20240222030235.27815-2-semen.protsenko@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240222030235.27815-1-semen.protsenko@linaro.org> References: <20240222030235.27815-1-semen.protsenko@linaro.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791566553683375989 X-GMAIL-MSGID: 1791566553683375989 Document CPU clock management unit compatibles and add corresponding clock indices. Exynos850 has two CPU clusters (CL0 and CL1), each containing 4 Cortex-A55 cores. CPU PLLs are generating main CPU clocks for each cluster, and there are alternate ("switch") clocks that can be used temporarily while re-configuring the PLL for the new rate. ACLK, ATCLK, PCLKDBG and PERIPHCLK clocks are driving corresponding buses. CLK_CLUSTERx_SCLK are actual leaf CPU clocks and should be used to change CPU rates. Also some CoreSight clocks can be derived from DBG_USER (debug clock). Signed-off-by: Sam Protsenko --- Changes in v2: - none .../clock/samsung,exynos850-clock.yaml | 42 +++++++++++++++ include/dt-bindings/clock/exynos850.h | 54 +++++++++++++++++++ 2 files changed, 96 insertions(+) diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml index c752c8985a53..cdc5ded59fe5 100644 --- a/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml +++ b/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml @@ -36,6 +36,8 @@ properties: - samsung,exynos850-cmu-aud - samsung,exynos850-cmu-cmgp - samsung,exynos850-cmu-core + - samsung,exynos850-cmu-cpucl0 + - samsung,exynos850-cmu-cpucl1 - samsung,exynos850-cmu-dpu - samsung,exynos850-cmu-g3d - samsung,exynos850-cmu-hsi @@ -152,6 +154,46 @@ allOf: - const: dout_core_mmc_embd - const: dout_core_sss + - if: + properties: + compatible: + contains: + const: samsung,exynos850-cmu-cpucl0 + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + - description: CPUCL0 switch clock (from CMU_TOP) + - description: CPUCL0 debug clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: dout_cpucl0_switch + - const: dout_cpucl0_dbg + + - if: + properties: + compatible: + contains: + const: samsung,exynos850-cmu-cpucl1 + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + - description: CPUCL1 switch clock (from CMU_TOP) + - description: CPUCL1 debug clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: dout_cpucl1_switch + - const: dout_cpucl1_dbg + - if: properties: compatible: diff --git a/include/dt-bindings/clock/exynos850.h b/include/dt-bindings/clock/exynos850.h index bc15108aa3c2..7666241520f8 100644 --- a/include/dt-bindings/clock/exynos850.h +++ b/include/dt-bindings/clock/exynos850.h @@ -88,6 +88,18 @@ #define CLK_MOUT_G3D_SWITCH 76 #define CLK_GOUT_G3D_SWITCH 77 #define CLK_DOUT_G3D_SWITCH 78 +#define CLK_MOUT_CPUCL0_DBG 79 +#define CLK_MOUT_CPUCL0_SWITCH 80 +#define CLK_GOUT_CPUCL0_DBG 81 +#define CLK_GOUT_CPUCL0_SWITCH 82 +#define CLK_DOUT_CPUCL0_DBG 83 +#define CLK_DOUT_CPUCL0_SWITCH 84 +#define CLK_MOUT_CPUCL1_DBG 85 +#define CLK_MOUT_CPUCL1_SWITCH 86 +#define CLK_GOUT_CPUCL1_DBG 87 +#define CLK_GOUT_CPUCL1_SWITCH 88 +#define CLK_DOUT_CPUCL1_DBG 89 +#define CLK_DOUT_CPUCL1_SWITCH 90 /* CMU_APM */ #define CLK_RCO_I3C_PMIC 1 @@ -195,6 +207,48 @@ #define CLK_GOUT_CMGP_USI1_PCLK 14 #define CLK_GOUT_SYSREG_CMGP_PCLK 15 +/* CMU_CPUCL0 */ +#define CLK_FOUT_CPUCL0_PLL 1 +#define CLK_MOUT_PLL_CPUCL0 2 +#define CLK_MOUT_CPUCL0_SWITCH_USER 3 +#define CLK_MOUT_CPUCL0_DBG_USER 4 +#define CLK_MOUT_CPUCL0_PLL 5 +#define CLK_DOUT_CPUCL0_CPU 6 +#define CLK_DOUT_CPUCL0_CMUREF 7 +#define CLK_DOUT_CPUCL0_PCLK 8 +#define CLK_DOUT_CLUSTER0_ACLK 9 +#define CLK_DOUT_CLUSTER0_ATCLK 10 +#define CLK_DOUT_CLUSTER0_PCLKDBG 11 +#define CLK_DOUT_CLUSTER0_PERIPHCLK 12 +#define CLK_GOUT_CLUSTER0_ATCLK 13 +#define CLK_GOUT_CLUSTER0_PCLK 14 +#define CLK_GOUT_CLUSTER0_PERIPHCLK 15 +#define CLK_GOUT_CLUSTER0_SCLK 16 +#define CLK_GOUT_CPUCL0_CMU_CPUCL0_PCLK 17 +#define CLK_GOUT_CLUSTER0_CPU 18 +#define CLK_CLUSTER0_SCLK 19 + +/* CMU_CPUCL1 */ +#define CLK_FOUT_CPUCL1_PLL 1 +#define CLK_MOUT_PLL_CPUCL1 2 +#define CLK_MOUT_CPUCL1_SWITCH_USER 3 +#define CLK_MOUT_CPUCL1_DBG_USER 4 +#define CLK_MOUT_CPUCL1_PLL 5 +#define CLK_DOUT_CPUCL1_CPU 6 +#define CLK_DOUT_CPUCL1_CMUREF 7 +#define CLK_DOUT_CPUCL1_PCLK 8 +#define CLK_DOUT_CLUSTER1_ACLK 9 +#define CLK_DOUT_CLUSTER1_ATCLK 10 +#define CLK_DOUT_CLUSTER1_PCLKDBG 11 +#define CLK_DOUT_CLUSTER1_PERIPHCLK 12 +#define CLK_GOUT_CLUSTER1_ATCLK 13 +#define CLK_GOUT_CLUSTER1_PCLK 14 +#define CLK_GOUT_CLUSTER1_PERIPHCLK 15 +#define CLK_GOUT_CLUSTER1_SCLK 16 +#define CLK_GOUT_CPUCL1_CMU_CPUCL1_PCLK 17 +#define CLK_GOUT_CLUSTER1_CPU 18 +#define CLK_CLUSTER1_SCLK 19 + /* CMU_G3D */ #define CLK_FOUT_G3D_PLL 1 #define CLK_MOUT_G3D_PLL 2