From: MD Danish Anwar <danishanwar@ti.com>
To: "Andrew F. Davis" <afd@ti.com>, Suman Anna <s-anna@ti.com>,
Roger Quadros <rogerq@kernel.org>,
Vignesh Raghavendra <vigneshr@ti.com>,
Tero Kristo <t-kristo@ti.com>,
MD Danish Anwar <danishanwar@ti.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Bjorn Andersson <andersson@kernel.org>,
"Santosh Shilimkar" <ssantosh@kernel.org>,
Nishanth Menon <nm@ti.com>
Cc: <linux-remoteproc@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
<srk@ti.com>, <devicetree@vger.kernel.org>,
<netdev@vger.kernel.org>
Subject: [PATCH v3 4/6] soc: ti: pruss: Add helper functions to set GPI mode, MII_RT_event and XFR
Date: Mon, 6 Mar 2023 16:39:32 +0530 [thread overview]
Message-ID: <20230306110934.2736465-5-danishanwar@ti.com> (raw)
In-Reply-To: <20230306110934.2736465-1-danishanwar@ti.com>
From: Suman Anna <s-anna@ti.com>
The PRUSS CFG module is represented as a syscon node and is currently
managed by the PRUSS platform driver. Add easy accessor functions to set
GPI mode, MII_RT event enable/disable and XFR (XIN XOUT) enable/disable
to enable the PRUSS Ethernet usecase. These functions reuse the generic
pruss_cfg_update() API function.
Signed-off-by: Suman Anna <s-anna@ti.com>
Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Puranjay Mohan <p-mohan@ti.com>
---
include/linux/remoteproc/pruss.h | 55 ++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/include/linux/remoteproc/pruss.h b/include/linux/remoteproc/pruss.h
index d41bec448f06..7952f250301a 100644
--- a/include/linux/remoteproc/pruss.h
+++ b/include/linux/remoteproc/pruss.h
@@ -240,4 +240,59 @@ static inline bool is_pru_rproc(struct device *dev)
return true;
}
+/**
+ * pruss_cfg_gpimode() - set the GPI mode of the PRU
+ * @pruss: the pruss instance handle
+ * @pru_id: id of the PRU core within the PRUSS
+ * @mode: GPI mode to set
+ *
+ * Sets the GPI mode for a given PRU by programming the
+ * corresponding PRUSS_CFG_GPCFGx register
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+static inline int pruss_cfg_gpimode(struct pruss *pruss,
+ enum pruss_pru_id pru_id,
+ enum pruss_gpi_mode mode)
+{
+ if (pru_id < 0 || pru_id >= PRUSS_NUM_PRUS)
+ return -EINVAL;
+
+ return pruss_cfg_update(pruss, PRUSS_CFG_GPCFG(pru_id),
+ PRUSS_GPCFG_PRU_GPI_MODE_MASK,
+ mode << PRUSS_GPCFG_PRU_GPI_MODE_SHIFT);
+}
+
+/**
+ * pruss_cfg_miirt_enable() - Enable/disable MII RT Events
+ * @pruss: the pruss instance
+ * @enable: enable/disable
+ *
+ * Enable/disable the MII RT Events for the PRUSS.
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+static inline int pruss_cfg_miirt_enable(struct pruss *pruss, bool enable)
+{
+ u32 set = enable ? PRUSS_MII_RT_EVENT_EN : 0;
+
+ return pruss_cfg_update(pruss, PRUSS_CFG_MII_RT,
+ PRUSS_MII_RT_EVENT_EN, set);
+}
+
+/**
+ * pruss_cfg_xfr_enable() - Enable/disable XIN XOUT shift functionality
+ * @pruss: the pruss instance
+ * @enable: enable/disable
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+static inline int pruss_cfg_xfr_enable(struct pruss *pruss, bool enable)
+{
+ u32 set = enable ? PRUSS_SPP_XFER_SHIFT_EN : 0;
+
+ return pruss_cfg_update(pruss, PRUSS_CFG_SPP,
+ PRUSS_SPP_XFER_SHIFT_EN, set);
+}
+
#endif /* __LINUX_PRUSS_H */
--
2.25.1
next prev parent reply other threads:[~2023-03-06 11:10 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-06 11:09 [PATCH v3 0/6] Introduce PRU platform consumer API MD Danish Anwar
2023-03-06 11:09 ` [PATCH v3 1/6] soc: ti: pruss: Add pruss_get()/put() API MD Danish Anwar
2023-03-08 8:22 ` Roger Quadros
2023-03-06 11:09 ` [PATCH v3 2/6] soc: ti: pruss: Add pruss_{request,release}_mem_region() API MD Danish Anwar
2023-03-08 8:23 ` Roger Quadros
2023-03-06 11:09 ` [PATCH v3 3/6] soc: ti: pruss: Add pruss_cfg_read()/update() API MD Danish Anwar
2023-03-08 8:27 ` Roger Quadros
2023-03-08 11:36 ` [EXTERNAL] " Md Danish Anwar
2023-03-08 11:42 ` Roger Quadros
2023-03-09 11:30 ` [EXTERNAL] " Md Danish Anwar
2023-03-10 11:53 ` Md Danish Anwar
2023-03-10 13:23 ` Roger Quadros
2023-03-10 15:36 ` [EXTERNAL] " Md Danish Anwar
2023-03-11 12:06 ` Roger Quadros
2023-03-13 5:01 ` [EXTERNAL] " Md Danish Anwar
2023-03-13 7:51 ` Roger Quadros
2023-03-06 11:09 ` MD Danish Anwar [this message]
2023-03-08 8:34 ` [PATCH v3 4/6] soc: ti: pruss: Add helper functions to set GPI mode, MII_RT_event and XFR Roger Quadros
2023-03-08 9:23 ` [EXTERNAL] " Md Danish Anwar
2023-03-08 11:15 ` Roger Quadros
2023-03-08 11:29 ` [EXTERNAL] " Md Danish Anwar
2023-03-08 11:39 ` Roger Quadros
2023-03-06 11:09 ` [PATCH v3 5/6] soc: ti: pruss: Add helper function to enable OCP master ports MD Danish Anwar
2023-03-08 8:41 ` Roger Quadros
2023-03-08 11:09 ` [EXTERNAL] " Md Danish Anwar
2023-03-08 11:14 ` Roger Quadros
2023-03-08 11:16 ` [EXTERNAL] " Md Danish Anwar
2023-03-09 7:04 ` Tony Lindgren
2023-03-09 11:34 ` [EXTERNAL] " Md Danish Anwar
2023-03-06 11:09 ` [PATCH v3 6/6] soc: ti: pruss: Add helper functions to get/set PRUSS_CFG_GPMUX MD Danish Anwar
2023-03-08 8:43 ` Roger Quadros
2023-03-06 18:43 ` [PATCH v3 0/6] Introduce PRU platform consumer API Mathieu Poirier
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