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[193.106.246.138]) by smtp.gmail.com with ESMTPSA id u10sm425301lfo.39.2020.08.21.07.44.29 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 21 Aug 2020 07:44:30 -0700 (PDT) From: Grzegorz Jaszczyk To: ssantosh@kernel.org, s-anna@ti.com Cc: grzegorz.jaszczyk@linaro.org, santosh.shilimkar@oracle.com, robh+dt@kernel.org, lee.jones@linaro.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, praneeth@ti.com, tony@atomide.com, "Andrew F . Davis" Subject: [PATCH v2 5/7] soc: ti: pruss: Add support for PRU-ICSS subsystems on 66AK2G SoC Date: Fri, 21 Aug 2020 16:42:42 +0200 Message-Id: <1598020964-29877-6-git-send-email-grzegorz.jaszczyk@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1598020964-29877-1-git-send-email-grzegorz.jaszczyk@linaro.org> References: <1598020964-29877-1-git-send-email-grzegorz.jaszczyk@linaro.org> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org From: Suman Anna The 66AK2G SoC supports two PRU-ICSS instances, named PRUSS0 and PRUSS1, each of which has two PRU processor cores. The two PRU-ICSS instances are identical to each other with few minor SoC integration differences, and are very similar to the PRU-ICSS1 of AM57xx/AM43xx. The Shared Data RAM size is larger and the number of interrupts coming into MPU INTC is like the instances on AM437x. There are also few other differences attributing to integration in Keystone architecture (like no SYSCFG register or PRCM handshake protocols). Other IP level differences include different constant table, differences in system event interrupt input sources etc. They also do not have a programmable module reset line like those present on AM33xx/AM43xx SoCs. The modules are reset just like any other IP with the SoC's global cold/warm resets. The existing PRUSS platform driver has been enhanced to support these 66AK2G PRU-ICSS instances through new 66AK2G specific compatible for properly probing and booting all the different PRU cores in each PRU-ICSS processor subsystem. A build dependency with ARCH_KEYSTONE is added to enable the driver to be built in K2G-only configuration. Signed-off-by: Andrew F. Davis Signed-off-by: Suman Anna Signed-off-by: Grzegorz Jaszczyk --- v1->v2: - No changes. --- drivers/soc/ti/Kconfig | 2 +- drivers/soc/ti/pruss.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/soc/ti/Kconfig b/drivers/soc/ti/Kconfig index 99dbc14..c290343 100644 --- a/drivers/soc/ti/Kconfig +++ b/drivers/soc/ti/Kconfig @@ -103,7 +103,7 @@ config TI_K3_SOCINFO config TI_PRUSS tristate "TI PRU-ICSS Subsystem Platform drivers" - depends on SOC_AM33XX || SOC_AM43XX || SOC_DRA7XX + depends on SOC_AM33XX || SOC_AM43XX || SOC_DRA7XX || ARCH_KEYSTONE select MFD_SYSCON help TI PRU-ICSS Subsystem platform specific support. diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c index 5df4caa..d5f128e 100644 --- a/drivers/soc/ti/pruss.c +++ b/drivers/soc/ti/pruss.c @@ -162,6 +162,7 @@ static const struct of_device_id pruss_of_match[] = { { .compatible = "ti,am4376-pruss0", .data = &am437x_pruss0_data, }, { .compatible = "ti,am4376-pruss1", .data = &am437x_pruss1_data, }, { .compatible = "ti,am5728-pruss" }, + { .compatible = "ti,k2g-pruss" }, {}, }; MODULE_DEVICE_TABLE(of, pruss_of_match);