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cb3ce95401
In order to make it easier to move on to dropping common.h from code directly, remove common.h inclusion from the rest of the header file which had been including it. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (c) 2018 Microsemi Corporation
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*/
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#include <errno.h>
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#include <linux/bitops.h>
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#include <linux/io.h>
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#include "mscc_mac_table.h"
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#define ANA_TABLES_MACACCESS_VALID BIT(11)
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#define ANA_TABLES_MACACCESS_ENTRYTYPE(x) ((x) << 9)
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#define ANA_TABLES_MACACCESS_DEST_IDX(x) ((x) << 3)
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#define ANA_TABLES_MACACCESS_MAC_TABLE_CMD(x) (x)
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#define ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M GENMASK(2, 0)
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#define MACACCESS_CMD_IDLE 0
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#define MACACCESS_CMD_LEARN 1
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/* MAC table entry types.
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* ENTRYTYPE_NORMAL is subject to aging.
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* ENTRYTYPE_LOCKED is not subject to aging.
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*/
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enum macaccess_entry_type {
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ENTRYTYPE_NORMAL = 0,
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ENTRYTYPE_LOCKED,
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};
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static int vlan_wait_for_completion(void __iomem *regs,
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const unsigned long *mscc_mac_table_offset)
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{
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unsigned int val, timeout = 10;
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/* Wait for the issued mac table command to be completed, or timeout.
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* When the command read from ANA_TABLES_MACACCESS is
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* MACACCESS_CMD_IDLE, the issued command completed successfully.
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*/
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do {
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val = readl(regs +
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mscc_mac_table_offset[MSCC_ANA_TABLES_MACACCESS]);
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val &= ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M;
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} while (val != MACACCESS_CMD_IDLE && timeout--);
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if (!timeout)
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return -ETIMEDOUT;
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return 0;
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}
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int mscc_mac_table_add(void __iomem *regs,
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const unsigned long *mscc_mac_table_offset,
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const unsigned char mac[ETH_LEN], int pgid)
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{
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u32 macl = 0, mach = 0;
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/* Set the MAC address to handle and the vlan associated in a format
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* understood by the hardware.
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*/
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mach |= MAC_VID << 16;
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mach |= ((u32)mac[0]) << 8;
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mach |= ((u32)mac[1]) << 0;
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macl |= ((u32)mac[2]) << 24;
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macl |= ((u32)mac[3]) << 16;
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macl |= ((u32)mac[4]) << 8;
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macl |= ((u32)mac[5]) << 0;
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writel(macl, regs + mscc_mac_table_offset[MSCC_ANA_TABLES_MACLDATA]);
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writel(mach, regs + mscc_mac_table_offset[MSCC_ANA_TABLES_MACHDATA]);
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writel(ANA_TABLES_MACACCESS_VALID |
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ANA_TABLES_MACACCESS_DEST_IDX(pgid) |
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ANA_TABLES_MACACCESS_ENTRYTYPE(ENTRYTYPE_LOCKED) |
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ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_LEARN),
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regs + mscc_mac_table_offset[MSCC_ANA_TABLES_MACACCESS]);
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return vlan_wait_for_completion(regs, mscc_mac_table_offset);
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}
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