root/include/linux/stmmac.h

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/*******************************************************************************

  Header file for stmmac platform data

  Copyright (C) 2009  STMicroelectronics Ltd

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/

#ifndef __STMMAC_PLATFORM_DATA
#define __STMMAC_PLATFORM_DATA

#include <linux/platform_device.h>

#define STMMAC_RX_COE_NONE      0
#define STMMAC_RX_COE_TYPE1     1
#define STMMAC_RX_COE_TYPE2     2

/* Define the macros for CSR clock range parameters to be passed by
 * platform code.
 * This could also be configured at run time using CPU freq framework. */

/* MDC Clock Selection define*/
#define STMMAC_CSR_60_100M      0x0     /* MDC = clk_scr_i/42 */
#define STMMAC_CSR_100_150M     0x1     /* MDC = clk_scr_i/62 */
#define STMMAC_CSR_20_35M       0x2     /* MDC = clk_scr_i/16 */
#define STMMAC_CSR_35_60M       0x3     /* MDC = clk_scr_i/26 */
#define STMMAC_CSR_150_250M     0x4     /* MDC = clk_scr_i/102 */
#define STMMAC_CSR_250_300M     0x5     /* MDC = clk_scr_i/122 */

/* The MDC clock could be set higher than the IEEE 802.3
 * specified frequency limit 0f 2.5 MHz, by programming a clock divider
 * of value different than the above defined values. The resultant MDIO
 * clock frequency of 12.5 MHz is applicable for the interfacing chips
 * supporting higher MDC clocks.
 * The MDC clock selection macros need to be defined for MDC clock rate
 * of 12.5 MHz, corresponding to the following selection.
 */
#define STMMAC_CSR_I_4          0x8     /* clk_csr_i/4 */
#define STMMAC_CSR_I_6          0x9     /* clk_csr_i/6 */
#define STMMAC_CSR_I_8          0xA     /* clk_csr_i/8 */
#define STMMAC_CSR_I_10         0xB     /* clk_csr_i/10 */
#define STMMAC_CSR_I_12         0xC     /* clk_csr_i/12 */
#define STMMAC_CSR_I_14         0xD     /* clk_csr_i/14 */
#define STMMAC_CSR_I_16         0xE     /* clk_csr_i/16 */
#define STMMAC_CSR_I_18         0xF     /* clk_csr_i/18 */

/* AXI DMA Burst length supported */
#define DMA_AXI_BLEN_4          (1 << 1)
#define DMA_AXI_BLEN_8          (1 << 2)
#define DMA_AXI_BLEN_16         (1 << 3)
#define DMA_AXI_BLEN_32         (1 << 4)
#define DMA_AXI_BLEN_64         (1 << 5)
#define DMA_AXI_BLEN_128        (1 << 6)
#define DMA_AXI_BLEN_256        (1 << 7)
#define DMA_AXI_BLEN_ALL (DMA_AXI_BLEN_4 | DMA_AXI_BLEN_8 | DMA_AXI_BLEN_16 \
                        | DMA_AXI_BLEN_32 | DMA_AXI_BLEN_64 \
                        | DMA_AXI_BLEN_128 | DMA_AXI_BLEN_256)

/* Platfrom data for platform device structure's platform_data field */

struct stmmac_mdio_bus_data {
        int (*phy_reset)(void *priv);
        unsigned int phy_mask;
        int *irqs;
        int probed_phy_irq;
#ifdef CONFIG_OF
        int reset_gpio, active_low;
        u32 delays[3];
#endif
};

struct stmmac_dma_cfg {
        int pbl;
        int fixed_burst;
        int mixed_burst;
        int burst_len;
};

struct plat_stmmacenet_data {
        char *phy_bus_name;
        int bus_id;
        int phy_addr;
        int interface;
        struct stmmac_mdio_bus_data *mdio_bus_data;
        struct stmmac_dma_cfg *dma_cfg;
        int clk_csr;
        int has_gmac;
        int enh_desc;
        int tx_coe;
        int rx_coe;
        int bugged_jumbo;
        int pmt;
        int force_sf_dma_mode;
        int force_thresh_dma_mode;
        int riwt_off;
        int max_speed;
        int maxmtu;
        int multicast_filter_bins;
        int unicast_filter_entries;
        void (*fix_mac_speed)(void *priv, unsigned int speed);
        void (*bus_setup)(void __iomem *ioaddr);
        void *(*setup)(struct platform_device *pdev);
        void (*free)(struct platform_device *pdev, void *priv);
        int (*init)(struct platform_device *pdev, void *priv);
        void (*exit)(struct platform_device *pdev, void *priv);
        void *custom_cfg;
        void *custom_data;
        void *bsp_priv;
};

/* of_data for SoC glue layer device tree bindings */

struct stmmac_of_data {
        int has_gmac;
        int enh_desc;
        int tx_coe;
        int rx_coe;
        int bugged_jumbo;
        int pmt;
        int riwt_off;
        void (*fix_mac_speed)(void *priv, unsigned int speed);
        void (*bus_setup)(void __iomem *ioaddr);
        void *(*setup)(struct platform_device *pdev);
        void (*free)(struct platform_device *pdev, void *priv);
        int (*init)(struct platform_device *pdev, void *priv);
        void (*exit)(struct platform_device *pdev, void *priv);
};
#endif

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