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From: =?utf-8?q?Th=C3=A9o_Lebrun?= <theo.lebrun@bootlin.com>
Date: Fri, 05 Apr 2024 17:02:19 +0200
Subject: [PATCH v2 09/11] spi: cadence-qspi: add mobileye,eyeq5-ospi
 compatible
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Message-Id: <20240405-cdns-qspi-mbly-v2-9-956679866d6d@bootlin.com>
References: <20240405-cdns-qspi-mbly-v2-0-956679866d6d@bootlin.com>
In-Reply-To: <20240405-cdns-qspi-mbly-v2-0-956679866d6d@bootlin.com>
To: Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
 Conor Dooley <conor+dt@kernel.org>, Vaishnav Achath <vaishnav.a@ti.com>, 
 Thomas Bogendoerfer <tsbogend@alpha.franken.de>, 
 Rob Herring <robh@kernel.org>
Cc: linux-spi@vger.kernel.org, devicetree@vger.kernel.org, 
 linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, 
 Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>, 
 Gregory CLEMENT <gregory.clement@bootlin.com>, 
 Thomas Petazzoni <thomas.petazzoni@bootlin.com>, 
 Tawfik Bayouk <tawfik.bayouk@mobileye.com>, 
 =?utf-8?q?Th=C3=A9o_Lebrun?= <theo.lebrun@bootlin.com>

Declare a new mobileye,eyeq5-ospi compatible. Exploit quirk flags:
detect FIFO depth through SRAMPARTITION register; avoid IRQs during
read operations.

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
---
 drivers/spi/spi-cadence-quadspi.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c
index 230aad490e03..11f54f507787 100644
--- a/drivers/spi/spi-cadence-quadspi.c
+++ b/drivers/spi/spi-cadence-quadspi.c
@@ -2059,6 +2059,13 @@ static const struct cqspi_driver_platdata pensando_cdns_qspi = {
 	.quirks = CQSPI_NEEDS_APB_AHB_HAZARD_WAR | CQSPI_DISABLE_DAC_MODE,
 };
 
+static const struct cqspi_driver_platdata mobileye_eyeq5_ospi = {
+	.hwcaps_mask = CQSPI_SUPPORTS_OCTAL,
+	.quirks = CQSPI_DISABLE_DAC_MODE | CQSPI_NO_SUPPORT_WR_COMPLETION |
+			CQSPI_DETECT_FIFO_DEPTH | CQSPI_RD_NO_IRQ |
+			CQSPI_BUSYWAIT_EARLY,
+};
+
 static const struct of_device_id cqspi_dt_ids[] = {
 	{
 		.compatible = "cdns,qspi-nor",
@@ -2092,6 +2099,10 @@ static const struct of_device_id cqspi_dt_ids[] = {
 		.compatible = "amd,pensando-elba-qspi",
 		.data = &pensando_cdns_qspi,
 	},
+	{
+		.compatible = "mobileye,eyeq5-ospi",
+		.data = &mobileye_eyeq5_ospi,
+	},
 	{ /* end of table */ }
 };
 

-- 
2.44.0