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Thu, 24 Aug 2023 00:36:42 +0300 From: Dmitry Rokosov To: , , , , , , , , CC: , , , , , , , , Jan Dakinevich , Dmitry Rokosov Subject: [PATCH v2 10/15] arm64: dts: meson: a1: add eMMC controller and its pins Date: Thu, 24 Aug 2023 00:36:25 +0300 Message-ID: <20230823213630.12936-11-ddrokosov@sberdevices.ru> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20230823213630.12936-1-ddrokosov@sberdevices.ru> References: <20230823213630.12936-1-ddrokosov@sberdevices.ru> MIME-Version: 1.0 X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) To p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 179413 [Aug 23 2023] X-KSMG-AntiSpam-Version: 5.9.59.0 X-KSMG-AntiSpam-Envelope-From: ddrokosov@salutedevices.com X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 527 527 5bb611be2ca2baa31d984ccbf4ef4415504fc308, {Tracking_smtp_not_equal_from}, {Tracking_from_domain_doesnt_match_to}, salutedevices.com:7.1.1;sberdevices.ru:7.1.1,5.0.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;127.0.0.199:7.1.2;p-i-exch-sc-m01.sberdevices.ru:7.1.1,5.0.1;100.64.160.123:7.1.2, FromAlignment: n, {Tracking_smtp_domain_mismatch}, {Tracking_smtp_domain_2level_mismatch}, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2023/08/23 18:49:00 #21688451 X-KSMG-AntiVirus-Status: Clean, skipped X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230823_143648_172001_A0373DC5 X-CRM114-Status: GOOD ( 13.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Jan Dakinevich The definition is inspired by a similar one for AXG SoC family. 'sdio_pins' and 'sdio_clk_gate_pins' pinctrls are supposed to be used as "default" and "clk-gate" in board-specific device trees. During initialization 'meson-gx' driver sets clock to safe low-frequency value (400kHz). However, both source clocks ("clkin0" and "clkin1") are high-frequency by default, and using of eMMC's internal divider is not enough to achieve so low values. To provide low-frequency source, reparent "sd_emmc_sel2" clock using 'assigned-clocks' property. Signed-off-by: Jan Dakinevich Signed-off-by: Dmitry Rokosov --- arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 43 +++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi index 1cc34fe003af..6968fbd33348 100644 --- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi @@ -142,6 +142,32 @@ mux { bias-pull-down; }; }; + + sdio_pins: sdio { + mux0 { + groups = "sdcard_d0_x", + "sdcard_d1_x", + "sdcard_d2_x", + "sdcard_d3_x", + "sdcard_cmd_x"; + function = "sdcard"; + bias-pull-up; + }; + + mux1 { + groups = "sdcard_clk_x"; + function = "sdcard"; + bias-disable; + }; + }; + + sdio_clk_gate_pins: sdio-clk-gate { + mux { + groups = "sdcard_clk_x"; + function = "sdcard"; + bias-pull-down; + }; + }; }; gpio_intc: interrupt-controller@440 { @@ -208,6 +234,23 @@ clkc_pll: pll-clock-controller@7c80 { <&clkc_periphs CLKID_HIFIPLL_IN>; clock-names = "fixpll_in", "hifipll_in"; }; + + sd_emmc: sd@10000 { + compatible = "amlogic,meson-axg-mmc"; + reg = <0x0 0x10000 0x0 0x800>; + interrupts = ; + clocks = <&clkc_periphs CLKID_SD_EMMC_A>, + <&clkc_periphs CLKID_SD_EMMC>, + <&clkc_pll CLKID_FCLK_DIV2>; + clock-names = "core", + "clkin0", + "clkin1"; + assigned-clocks = <&clkc_periphs CLKID_SD_EMMC_SEL2>; + assigned-clock-parents = <&xtal>; + resets = <&reset RESET_SD_EMMC_A>; + power-domains = <&pwrc PWRC_SD_EMMC_ID>; + status = "disabled"; + }; }; usb: usb@fe004400 {