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kernel_optimize_test/include/linux/stmmac.h
Andrew Lunn 0c65b2b90d net: of_get_phy_mode: Change API to solve int/unit warnings 
Before this change of_get_phy_mode() returned an enum,
phy_interface_t. On error, -ENODEV etc, is returned. If the result of
the function is stored in a variable of type phy_interface_t, and the
compiler has decided to represent this as an unsigned int, comparision
with -ENODEV etc, is a signed vs unsigned comparision.

Fix this problem by changing the API. Make the function return an
error, or 0 on success, and pass a pointer, of type phy_interface_t,
where the phy mode should be stored.

v2:
Return with *interface set to PHY_INTERFACE_MODE_NA on error.
Add error checks to all users of of_get_phy_mode()
Fixup a few reverse christmas tree errors
Fixup a few slightly malformed reverse christmas trees

v3:
Fix 0-day reported errors.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-04 11:21:25 -08:00

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/* SPDX-License-Identifier: GPL-2.0-only */
/*******************************************************************************
Header file for stmmac platform data
Copyright (C) 2009 STMicroelectronics Ltd
Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/
#ifndef __STMMAC_PLATFORM_DATA
#define __STMMAC_PLATFORM_DATA
#include <linux/platform_device.h>
#include <linux/phy.h>
#define MTL_MAX_RX_QUEUES 8
#define MTL_MAX_TX_QUEUES 8
#define STMMAC_CH_MAX 8
#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 */
/* MTL algorithms identifiers */
#define MTL_TX_ALGORITHM_WRR 0x0
#define MTL_TX_ALGORITHM_WFQ 0x1
#define MTL_TX_ALGORITHM_DWRR 0x2
#define MTL_TX_ALGORITHM_SP 0x3
#define MTL_RX_ALGORITHM_SP 0x4
#define MTL_RX_ALGORITHM_WSP 0x5
/* RX/TX Queue Mode */
#define MTL_QUEUE_AVB 0x0
#define MTL_QUEUE_DCB 0x1
/* 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 {
unsigned int phy_mask;
int *irqs;
int probed_phy_irq;
bool needs_reset;
};
struct stmmac_dma_cfg {
int pbl;
int txpbl;
int rxpbl;
bool pblx8;
int fixed_burst;
int mixed_burst;
bool aal;
bool eame;
};
#define AXI_BLEN 7
struct stmmac_axi {
bool axi_lpi_en;
bool axi_xit_frm;
u32 axi_wr_osr_lmt;
u32 axi_rd_osr_lmt;
bool axi_kbbe;
u32 axi_blen[AXI_BLEN];
bool axi_fb;
bool axi_mb;
bool axi_rb;
};
struct stmmac_rxq_cfg {
u8 mode_to_use;
u32 chan;
u8 pkt_route;
bool use_prio;
u32 prio;
};
struct stmmac_txq_cfg {
u32 weight;
u8 mode_to_use;
/* Credit Base Shaper parameters */
u32 send_slope;
u32 idle_slope;
u32 high_credit;
u32 low_credit;
bool use_prio;
u32 prio;
};
struct plat_stmmacenet_data {
int bus_id;
int phy_addr;
int interface;
phy_interface_t phy_interface;
struct stmmac_mdio_bus_data *mdio_bus_data;
struct device_node *phy_node;
struct device_node *phylink_node;
struct device_node *mdio_node;
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;
int tx_fifo_size;
int rx_fifo_size;
u32 rx_queues_to_use;
u32 tx_queues_to_use;
u8 rx_sched_algorithm;
u8 tx_sched_algorithm;
struct stmmac_rxq_cfg rx_queues_cfg[MTL_MAX_RX_QUEUES];
struct stmmac_txq_cfg tx_queues_cfg[MTL_MAX_TX_QUEUES];
void (*fix_mac_speed)(void *priv, unsigned int speed);
int (*init)(struct platform_device *pdev, void *priv);
void (*exit)(struct platform_device *pdev, void *priv);
struct mac_device_info *(*setup)(void *priv);
void *bsp_priv;
struct clk *stmmac_clk;
struct clk *pclk;
struct clk *clk_ptp_ref;
unsigned int clk_ptp_rate;
unsigned int clk_ref_rate;
s32 ptp_max_adj;
struct reset_control *stmmac_rst;
struct stmmac_axi *axi;
int has_gmac4;
bool has_sun8i;
bool tso_en;
int rss_en;
int mac_port_sel_speed;
bool en_tx_lpi_clockgating;
int has_xgmac;
};
#endif
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