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authorCyril Chemparathy2012-07-24 12:22:16 +0000
committerAlbert ARIBAUD2012-09-01 14:58:10 +0200
commit2b62997ce931494da3f5836899a91ae3909a0c0c (patch)
treebd3d1e81944fad0446b83690e0309e4f05338990 /include/cpsw.h
parent2c30c1848742af9ae880870794c7e93660c31e52 (diff)
cpsw: add driver for cpsw ethernet device
CPSW is an on-chip ethernet switch that is found on various SoCs from Texas Instruments. This patch adds a simple driver (based on the Linux driver) for this hardware module. This patch also adds support to clean and flush dcache during packet send and receive. Changes by Sandhya: Added support to clean and flush dcache during packet send/receive and added timeouts. Signed-off-by: Cyril Chemparathy <cyril@ti.com> Signed-off-by: Chandan Nath <chandan.nath@ti.com> Signed-off-by: Satyanarayana, Sandhya <sandhya.satyanarayana@ti.com> [Ilya: Cleaned cache handling, some style cleanup, some small fixes, use of internal RAM for descriptors] Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
Diffstat (limited to 'include/cpsw.h')
-rw-r--r--include/cpsw.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/include/cpsw.h b/include/cpsw.h
new file mode 100644
index 00000000000..296b0e557f3
--- /dev/null
+++ b/include/cpsw.h
@@ -0,0 +1,51 @@
+/*
+ * CPSW Ethernet Switch Driver
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _CPSW_H_
+#define _CPSW_H_
+
+struct cpsw_slave_data {
+ u32 slave_reg_ofs;
+ u32 sliver_reg_ofs;
+ int phy_id;
+ int phy_if;
+};
+
+enum {
+ CPSW_CTRL_VERSION_1 = 0,
+ CPSW_CTRL_VERSION_2 /* am33xx like devices */
+};
+
+struct cpsw_platform_data {
+ u32 mdio_base;
+ u32 cpsw_base;
+ int mdio_div;
+ int channels; /* number of cpdma channels (symmetric) */
+ u32 cpdma_reg_ofs; /* cpdma register offset */
+ int slaves; /* number of slave cpgmac ports */
+ u32 ale_reg_ofs; /* address lookup engine reg offset */
+ int ale_entries; /* ale table size */
+ u32 host_port_reg_ofs; /* cpdma host port registers */
+ u32 hw_stats_reg_ofs; /* cpsw hw stats counters */
+ u32 mac_control;
+ struct cpsw_slave_data *slave_data;
+ void (*control)(int enabled);
+ u32 host_port_num;
+ u8 version;
+};
+
+int cpsw_register(struct cpsw_platform_data *data);
+
+#endif /* _CPSW_H_ */