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Exynos850 doesn't have ioclk, so only two clocks are needed (bus clock and functional SPI clock). Signed-off-by: Sam Protsenko Reviewed-by: Krzysztof Kozlowski Reviewed-by: Tudor Ambarus --- Changes in v2: - Collected R-b tags - Changed bindings patch title to "spi: dt-bindings: ..." Documentation/devicetree/bindings/spi/samsung,spi.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/spi/samsung,spi.yaml b/Documentation/devicetree/bindings/spi/samsung,spi.yaml index 79da99ca0e53..f71099852653 100644 --- a/Documentation/devicetree/bindings/spi/samsung,spi.yaml +++ b/Documentation/devicetree/bindings/spi/samsung,spi.yaml @@ -22,6 +22,7 @@ properties: - samsung,s5pv210-spi # for S5PV210 and S5PC110 - samsung,exynos4210-spi - samsung,exynos5433-spi + - samsung,exynos850-spi - samsung,exynosautov9-spi - tesla,fsd-spi - const: samsung,exynos7-spi From patchwork Thu Jan 25 01:35:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sam Protsenko X-Patchwork-Id: 13529801 Received: from mail-oo1-f49.google.com (mail-oo1-f49.google.com [209.85.161.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 321811877 for ; 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Wed, 24 Jan 2024 17:35:39 -0800 (PST) Received: from localhost ([136.62.192.75]) by smtp.gmail.com with ESMTPSA id t18-20020a4adbd2000000b00599dee152aesm159392oou.0.2024.01.24.17.35.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Jan 2024 17:35:38 -0800 (PST) From: Sam Protsenko To: Krzysztof Kozlowski , Andi Shyti , Mark Brown , Rob Herring , Conor Dooley Cc: Tudor Ambarus , Alim Akhtar , Sylwester Nawrocki , Tomasz Figa , Chanwoo Choi , linux-spi@vger.kernel.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 2/2] spi: s3c64xx: Add Exynos850 support Date: Wed, 24 Jan 2024 19:35:36 -0600 Message-Id: <20240125013536.30887-3-semen.protsenko@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240125013536.30887-1-semen.protsenko@linaro.org> References: <20240125013536.30887-1-semen.protsenko@linaro.org> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add SPI port configuration for Exynos850 SoC. It has 3 USI blocks which can be configured in SPI mode: * spi_0: BLK_PERI_SPI_0 (0x13940000) * spi_1: BLK_ALIVE_USI_CMGP00 (0x11d00000) * spi_2: BLK_ALIVE_USI_CMGP01 (0x11d20000) SPI FIFO depth is 64 bytes for all those SPI blocks, so the .fifo_lvl_mask value is set to 0x7f. All blocks have DIV_4 as the default internal clock divider, and an internal loopback mode to run a loopback test. Signed-off-by: Sam Protsenko Reviewed-by: Tudor Ambarus --- Changes in v2: - Collected R-b tags drivers/spi/spi-s3c64xx.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 432ec60d3568..7f7eb8f742e4 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -1460,6 +1460,17 @@ static const struct s3c64xx_spi_port_config exynos5433_spi_port_config = { .quirks = S3C64XX_SPI_QUIRK_CS_AUTO, }; +static const struct s3c64xx_spi_port_config exynos850_spi_port_config = { + .fifo_lvl_mask = { 0x7f, 0x7f, 0x7f }, + .rx_lvl_offset = 15, + .tx_st_done = 25, + .clk_div = 4, + .high_speed = true, + .clk_from_cmu = true, + .has_loopback = true, + .quirks = S3C64XX_SPI_QUIRK_CS_AUTO, +}; + static const struct s3c64xx_spi_port_config exynosautov9_spi_port_config = { .fifo_lvl_mask = { 0x1ff, 0x1ff, 0x7f, 0x7f, 0x7f, 0x7f, 0x1ff, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f}, @@ -1514,6 +1525,9 @@ static const struct of_device_id s3c64xx_spi_dt_match[] = { { .compatible = "samsung,exynos5433-spi", .data = (void *)&exynos5433_spi_port_config, }, + { .compatible = "samsung,exynos850-spi", + .data = (void *)&exynos850_spi_port_config, + }, { .compatible = "samsung,exynosautov9-spi", .data = (void *)&exynosautov9_spi_port_config, },