net: dsa: Split platform data to header file

Instead of having net/dsa.h contain both the internal switch tree/driver
structures, split the relevant platform_data parts into
include/linux/platform_data/dsa.h and make that header be included by
net/dsa.h in order not to break any setup. A subsequent set of patches
will update code including net/dsa.h to include only the platform_data
header.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 68 insertions, 0 deletions

diff --git a/include/linux/platform_data/dsa.h b/include/linux/platform_data/dsa.h
new file mode 100644
index 000000000000..d4d9bf2060a6
--- /dev/null
+++ b/include/linux/platform_data/dsa.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __DSA_PDATA_H
+#define __DSA_PDATA_H
+
+struct device;
+struct net_device;
+
+#define DSA_MAX_SWITCHES        4
+#define DSA_MAX_PORTS           12
+#define DSA_RTABLE_NONE         -1
+
+struct dsa_chip_data {
+        /*
+         * How to access the switch configuration registers.
+         */
+        struct device   *host_dev;
+        int             sw_addr;
+
+        /*
+         * Reference to network devices
+         */
+        struct device   *netdev[DSA_MAX_PORTS];
+
+        /* set to size of eeprom if supported by the switch */
+        int             eeprom_len;
+
+        /* Device tree node pointer for this specific switch chip
+         * used during switch setup in case additional properties
+         * and resources needs to be used
+         */
+        struct device_node *of_node;
+
+        /*
+         * The names of the switch's ports.  Use "cpu" to
+         * designate the switch port that the cpu is connected to,
+         * "dsa" to indicate that this port is a DSA link to
+         * another switch, NULL to indicate the port is unused,
+         * or any other string to indicate this is a physical port.
+         */
+        char            *port_names[DSA_MAX_PORTS];
+        struct device_node *port_dn[DSA_MAX_PORTS];
+
+        /*
+         * An array of which element [a] indicates which port on this
+         * switch should be used to send packets to that are destined
+         * for switch a. Can be NULL if there is only one switch chip.
+         */
+        s8              rtable[DSA_MAX_SWITCHES];
+};
+
+struct dsa_platform_data {
+        /*
+         * Reference to a Linux network interface that connects
+         * to the root switch chip of the tree.
+         */
+        struct device   *netdev;
+        struct net_device *of_netdev;
+
+        /*
+         * Info structs describing each of the switch chips
+         * connected via this network interface.
+         */
+        int             nr_chips;
+        struct dsa_chip_data    *chip;
+};
+
+
+#endif /* __DSA_PDATA_H */