[PATCH v14 2/6] remoteproc: pru: Add enum for PRU Core Identifiers.

From: MD Danish Anwar
Date: Fri Jan 06 2023 - 07:11:21 EST


Introducing enum pruss_pru_id for PRU Core Identifiers.
PRUSS_PRU0 indicates PRU Core 0.
PRUSS_PRU1 indicates PRU Core 1.
PRUSS_NUM_PRUS indicates the total number of PRU Cores.

Signed-off-by: MD Danish Anwar <danishanwar@xxxxxx>
Reviewed-by: Roger Quadros <rogerq@xxxxxxxxxx>
---
drivers/remoteproc/pru_rproc.c | 7 ++++---
include/linux/remoteproc/pruss.h | 31 +++++++++++++++++++++++++++++++
2 files changed, 35 insertions(+), 3 deletions(-)
create mode 100644 include/linux/remoteproc/pruss.h

diff --git a/drivers/remoteproc/pru_rproc.c b/drivers/remoteproc/pru_rproc.c
index 128bf9912f2c..f8b196a2b72a 100644
--- a/drivers/remoteproc/pru_rproc.c
+++ b/drivers/remoteproc/pru_rproc.c
@@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
+#include <linux/remoteproc/pruss.h>
#include <linux/pruss_driver.h>
#include <linux/remoteproc.h>

@@ -438,7 +439,7 @@ static void *pru_d_da_to_va(struct pru_rproc *pru, u32 da, size_t len)
dram0 = pruss->mem_regions[PRUSS_MEM_DRAM0];
dram1 = pruss->mem_regions[PRUSS_MEM_DRAM1];
/* PRU1 has its local RAM addresses reversed */
- if (pru->id == 1)
+ if (pru->id == PRUSS_PRU1)
swap(dram0, dram1);
shrd_ram = pruss->mem_regions[PRUSS_MEM_SHRD_RAM2];

@@ -747,14 +748,14 @@ static int pru_rproc_set_id(struct pru_rproc *pru)
case RTU0_IRAM_ADDR_MASK:
fallthrough;
case PRU0_IRAM_ADDR_MASK:
- pru->id = 0;
+ pru->id = PRUSS_PRU0;
break;
case TX_PRU1_IRAM_ADDR_MASK:
fallthrough;
case RTU1_IRAM_ADDR_MASK:
fallthrough;
case PRU1_IRAM_ADDR_MASK:
- pru->id = 1;
+ pru->id = PRUSS_PRU1;
break;
default:
ret = -EINVAL;
diff --git a/include/linux/remoteproc/pruss.h b/include/linux/remoteproc/pruss.h
new file mode 100644
index 000000000000..e94a81e97a4c
--- /dev/null
+++ b/include/linux/remoteproc/pruss.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/**
+ * PRU-ICSS Subsystem user interfaces
+ *
+ * Copyright (C) 2015-2022 Texas Instruments Incorporated - http://www.ti.com
+ * Suman Anna <s-anna@xxxxxx>
+ */
+
+#ifndef __LINUX_PRUSS_H
+#define __LINUX_PRUSS_H
+
+#include <linux/device.h>
+#include <linux/types.h>
+
+#define PRU_RPROC_DRVNAME "pru-rproc"
+
+/**
+ * enum pruss_pru_id - PRU core identifiers
+ * @PRUSS_PRU0: PRU Core 0.
+ * @PRUSS_PRU1: PRU Core 1.
+ * @PRUSS_NUM_PRUS: Total number of PRU Cores available.
+ *
+ */
+
+enum pruss_pru_id {
+ PRUSS_PRU0 = 0,
+ PRUSS_PRU1,
+ PRUSS_NUM_PRUS,
+};
+
+#endif /* __LINUX_PRUSS_H */
--
2.25.1