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[108.51.35.162]) by smtp.gmail.com with ESMTPSA id s33sm1421171qtk.11.2020.07.29.02.56.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Jul 2020 02:56:58 -0700 (PDT) From: Sean Anderson To: u-boot@lists.denx.de Cc: Rick Chen , Bin Meng , Sean Anderson Subject: [PATCH v2 5/7] riscv: clk: Add CLINT clock to kendryte clock driver Date: Wed, 29 Jul 2020 05:56:34 -0400 Message-Id: <20200729095636.1077054-6-seanga2@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200729095636.1077054-1-seanga2@gmail.com> References: <20200729095636.1077054-1-seanga2@gmail.com> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean Another "virtual" clock (in the sense that it isn't configurable). This could possibly be done as a clock in the device tree, but I think this is a bit cleaner. Signed-off-by: Sean Anderson --- checkpatch still complains about this one, but I don't see any reason to break it up even further. It doesn't make sense to me to split the header file change from everything else. Changes in v2: - Split Kendryte binding changes into their own commit drivers/clk/kendryte/clk.c | 4 ++++ include/dt-bindings/clock/k210-sysctl.h | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/clk/kendryte/clk.c b/drivers/clk/kendryte/clk.c index 981b3b7699..bb196961af 100644 --- a/drivers/clk/kendryte/clk.c +++ b/drivers/clk/kendryte/clk.c @@ -646,6 +646,10 @@ static int k210_clk_probe(struct udevice *dev) REGISTER_GATE(K210_CLK_RTC, "rtc", in0); #undef REGISTER_GATE + /* The MTIME register in CLINT runs at one 50th the CPU clock speed */ + clk_dm(K210_CLK_CLINT, + clk_register_fixed_factor(NULL, "clint", "cpu", 0, 1, 50)); + return 0; } diff --git a/include/dt-bindings/clock/k210-sysctl.h b/include/dt-bindings/clock/k210-sysctl.h index 0e3ed3fb9f..fe852bbd92 100644 --- a/include/dt-bindings/clock/k210-sysctl.h +++ b/include/dt-bindings/clock/k210-sysctl.h @@ -55,5 +55,6 @@ #define K210_CLK_OTP 43 #define K210_CLK_RTC 44 #define K210_CLK_ACLK 45 +#define K210_CLK_CLINT 46 #endif /* CLOCK_K210_SYSCTL_H */