include/linux/stmmac.h

   1 /*******************************************************************************
   2
   3   Header file for stmmac platform data
   4
   5   Copyright (C) 2009  STMicroelectronics Ltd
   6
   7   This program is free software; you can redistribute it and/or modify it
   8   under the terms and conditions of the GNU General Public License,
   9   version 2, as published by the Free Software Foundation.
  10
  11   This program is distributed in the hope it will be useful, but WITHOUT
  12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14   more details.
  15
  16   You should have received a copy of the GNU General Public License along with
  17   this program; if not, write to the Free Software Foundation, Inc.,
  18   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  19
  20   The full GNU General Public License is included in this distribution in
  21   the file called "COPYING".
  22
  23   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
  24 *******************************************************************************/
  25
  26 #ifndef __STMMAC_PLATFORM_DATA
  27 #define __STMMAC_PLATFORM_DATA
  28
  29 #include <linux/platform_device.h>
  30
  31 #define STMMAC_RX_COE_NONE      0
  32 #define STMMAC_RX_COE_TYPE1     1
  33 #define STMMAC_RX_COE_TYPE2     2
  34
  35 /* Define the macros for CSR clock range parameters to be passed by
  36  * platform code.
  37  * This could also be configured at run time using CPU freq framework. */
  38
  39 /* MDC Clock Selection define*/
  40 #define STMMAC_CSR_60_100M      0x0     /* MDC = clk_scr_i/42 */
  41 #define STMMAC_CSR_100_150M     0x1     /* MDC = clk_scr_i/62 */
  42 #define STMMAC_CSR_20_35M       0x2     /* MDC = clk_scr_i/16 */
  43 #define STMMAC_CSR_35_60M       0x3     /* MDC = clk_scr_i/26 */
  44 #define STMMAC_CSR_150_250M     0x4     /* MDC = clk_scr_i/102 */
  45 #define STMMAC_CSR_250_300M     0x5     /* MDC = clk_scr_i/122 */
  46
  47 /* The MDC clock could be set higher than the IEEE 802.3
  48  * specified frequency limit 0f 2.5 MHz, by programming a clock divider
  49  * of value different than the above defined values. The resultant MDIO
  50  * clock frequency of 12.5 MHz is applicable for the interfacing chips
  51  * supporting higher MDC clocks.
  52  * The MDC clock selection macros need to be defined for MDC clock rate
  53  * of 12.5 MHz, corresponding to the following selection.
  54  */
  55 #define STMMAC_CSR_I_4          0x8     /* clk_csr_i/4 */
  56 #define STMMAC_CSR_I_6          0x9     /* clk_csr_i/6 */
  57 #define STMMAC_CSR_I_8          0xA     /* clk_csr_i/8 */
  58 #define STMMAC_CSR_I_10         0xB     /* clk_csr_i/10 */
  59 #define STMMAC_CSR_I_12         0xC     /* clk_csr_i/12 */
  60 #define STMMAC_CSR_I_14         0xD     /* clk_csr_i/14 */
  61 #define STMMAC_CSR_I_16         0xE     /* clk_csr_i/16 */
  62 #define STMMAC_CSR_I_18         0xF     /* clk_csr_i/18 */
  63
  64 /* AXI DMA Burst length supported */
  65 #define DMA_AXI_BLEN_4          (1 << 1)
  66 #define DMA_AXI_BLEN_8          (1 << 2)
  67 #define DMA_AXI_BLEN_16         (1 << 3)
  68 #define DMA_AXI_BLEN_32         (1 << 4)
  69 #define DMA_AXI_BLEN_64         (1 << 5)
  70 #define DMA_AXI_BLEN_128        (1 << 6)
  71 #define DMA_AXI_BLEN_256        (1 << 7)
  72 #define DMA_AXI_BLEN_ALL (DMA_AXI_BLEN_4 | DMA_AXI_BLEN_8 | DMA_AXI_BLEN_16 \
  73                         | DMA_AXI_BLEN_32 | DMA_AXI_BLEN_64 \
  74                         | DMA_AXI_BLEN_128 | DMA_AXI_BLEN_256)
  75
  76 /* Platfrom data for platform device structure's platform_data field */
  77
  78 struct stmmac_mdio_bus_data {
  79         int (*phy_reset)(void *priv);
  80         unsigned int phy_mask;
  81         int *irqs;
  82         int probed_phy_irq;
  83 #ifdef CONFIG_OF
  84         int reset_gpio, active_low;
  85         u32 delays[3];
  86 #endif
  87 };
  88
  89 struct stmmac_dma_cfg {
  90         int pbl;
  91         int fixed_burst;
  92         int mixed_burst;
  93         int burst_len;
  94 };
  95
  96 struct plat_stmmacenet_data {
  97         char *phy_bus_name;
  98         int bus_id;
  99         int phy_addr;
 100         int interface;
 101         struct stmmac_mdio_bus_data *mdio_bus_data;
 102         struct stmmac_dma_cfg *dma_cfg;
 103         int clk_csr;
 104         int has_gmac;
 105         int enh_desc;
 106         int tx_coe;
 107         int rx_coe;
 108         int bugged_jumbo;
 109         int pmt;
 110         int force_sf_dma_mode;
 111         int force_thresh_dma_mode;
 112         int riwt_off;
 113         int max_speed;
 114         int maxmtu;
 115         void (*fix_mac_speed)(void *priv, unsigned int speed);
 116         void (*bus_setup)(void __iomem *ioaddr);
 117         void *(*setup)(struct platform_device *pdev);
 118         void (*free)(struct platform_device *pdev, void *priv);
 119         int (*init)(struct platform_device *pdev, void *priv);
 120         void (*exit)(struct platform_device *pdev, void *priv);
 121         void *custom_cfg;
 122         void *custom_data;
 123         void *bsp_priv;
 124 };
 125
 126 /* of_data for SoC glue layer device tree bindings */
 127
 128 struct stmmac_of_data {
 129         int has_gmac;
 130         int enh_desc;
 131         int tx_coe;
 132         int rx_coe;
 133         int bugged_jumbo;
 134         int pmt;
 135         int riwt_off;
 136         void (*fix_mac_speed)(void *priv, unsigned int speed);
 137         void (*bus_setup)(void __iomem *ioaddr);
 138         void *(*setup)(struct platform_device *pdev);
 139         void (*free)(struct platform_device *pdev, void *priv);
 140         int (*init)(struct platform_device *pdev, void *priv);
 141         void (*exit)(struct platform_device *pdev, void *priv);
 142 };
 143 #endif