* SuperH Ethernet device driver
*
* Copyright (C) 2006-2008 Nobuhiro Iwamatsu
- * Copyright (C) 2008 Renesas Solutions Corp.
+ * Copyright (C) 2008-2009 Renesas Solutions Corp.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
#include <linux/netdevice.h>
#include <linux/phy.h>
+#include <asm/sh_eth.h>
+
#define CARDNAME "sh-eth"
#define TX_TIMEOUT (5*HZ)
#define TX_RING_SIZE 64 /* Tx ring size */
#define ETHERSMALL 60
#define PKT_BUF_SZ 1538
-#ifdef CONFIG_CPU_SUBTYPE_SH7763
+#if defined(CONFIG_CPU_SUBTYPE_SH7763)
+/* This CPU register maps is very difference by other SH4 CPU */
-#define SH7763_SKB_ALIGN 32
/* Chip Base Address */
-# define SH_TSU_ADDR 0xFFE01800
-# define ARSTR 0xFFE01800
+# define SH_TSU_ADDR 0xFEE01800
+# define ARSTR SH_TSU_ADDR
/* Chip Registers */
/* E-DMAC */
# define FWNLCR1 0xB0
# define FWALCR1 0x40
-#else /* CONFIG_CPU_SUBTYPE_SH7763 */
-# define RX_OFFSET 2 /* skb offset */
+#elif defined(CONFIG_CPU_SH4) /* #if defined(CONFIG_CPU_SUBTYPE_SH7763) */
+/* EtherC */
+#define ECMR 0x100
+#define RFLR 0x108
+#define ECSR 0x110
+#define ECSIPR 0x118
+#define PIR 0x120
+#define PSR 0x128
+#define RDMLR 0x140
+#define IPGR 0x150
+#define APR 0x154
+#define MPR 0x158
+#define TPAUSER 0x164
+#define RFCF 0x160
+#define TPAUSECR 0x168
+#define BCFRR 0x16c
+#define MAHR 0x1c0
+#define MALR 0x1c8
+#define TROCR 0x1d0
+#define CDCR 0x1d4
+#define LCCR 0x1d8
+#define CNDCR 0x1dc
+#define CEFCR 0x1e4
+#define FRECR 0x1e8
+#define TSFRCR 0x1ec
+#define TLFRCR 0x1f0
+#define RFCR 0x1f4
+#define MAFCR 0x1f8
+#define RTRATE 0x1fc
+
+/* E-DMAC */
+#define EDMR 0x000
+#define EDTRR 0x008
+#define EDRRR 0x010
+#define TDLAR 0x018
+#define RDLAR 0x020
+#define EESR 0x028
+#define EESIPR 0x030
+#define TRSCER 0x038
+#define RMFCR 0x040
+#define TFTR 0x048
+#define FDR 0x050
+#define RMCR 0x058
+#define TFUCR 0x064
+#define RFOCR 0x068
+#define FCFTR 0x070
+#define RPADIR 0x078
+#define TRIMD 0x07c
+#define RBWAR 0x0c8
+#define RDFAR 0x0cc
+#define TBRAR 0x0d4
+#define TDFAR 0x0d8
+#else /* #elif defined(CONFIG_CPU_SH4) */
+/* This section is SH3 or SH2 */
+#ifndef CONFIG_CPU_SUBTYPE_SH7619
/* Chip base address */
# define SH_TSU_ADDR 0xA7000804
# define ARSTR 0xA7000800
-
+#endif
/* Chip Registers */
/* E-DMAC */
# define EDMR 0x0000
#endif /* CONFIG_CPU_SUBTYPE_SH7763 */
+/* There are avoid compile error... */
+#if !defined(BCULR)
+#define BCULR 0x0fc
+#endif
+#if !defined(TRIMD)
+#define TRIMD 0x0fc
+#endif
+#if !defined(APR)
+#define APR 0x0fc
+#endif
+#if !defined(MPR)
+#define MPR 0x0fc
+#endif
+#if !defined(TPAUSER)
+#define TPAUSER 0x0fc
+#endif
+
+/* Driver's parameters */
+#if defined(CONFIG_CPU_SH4)
+#define SH4_SKB_RX_ALIGN 32
+#else
+#define SH2_SH3_SKB_RX_ALIGN 2
+#endif
+
/*
* Register's bits
*/
/* EDMR */
enum DMAC_M_BIT {
+ EDMR_EL = 0x40, /* Litte endian */
EDMR_DL1 = 0x20, EDMR_DL0 = 0x10,
#ifdef CONFIG_CPU_SUBTYPE_SH7763
- EDMR_SRST = 0x03,
- EMDR_DESC_R = 0x30, /* Descriptor reserve size */
- EDMR_EL = 0x40, /* Litte endian */
+ EDMR_SRST = 0x03,
#else /* CONFIG_CPU_SUBTYPE_SH7763 */
EDMR_SRST = 0x01,
#endif
/* EESR */
enum EESR_BIT {
-#ifndef CONFIG_CPU_SUBTYPE_SH7763
- EESR_TWB = 0x40000000,
-#else
- EESR_TWB = 0xC0000000,
- EESR_TC1 = 0x20000000,
- EESR_TUC = 0x10000000,
- EESR_ROC = 0x80000000,
-#endif
- EESR_TABT = 0x04000000,
- EESR_RABT = 0x02000000, EESR_RFRMER = 0x01000000,
-#ifndef CONFIG_CPU_SUBTYPE_SH7763
- EESR_ADE = 0x00800000,
-#endif
- EESR_ECI = 0x00400000,
- EESR_FTC = 0x00200000, EESR_TDE = 0x00100000,
- EESR_TFE = 0x00080000, EESR_FRC = 0x00040000,
- EESR_RDE = 0x00020000, EESR_RFE = 0x00010000,
-#ifndef CONFIG_CPU_SUBTYPE_SH7763
- EESR_CND = 0x00000800,
-#endif
- EESR_DLC = 0x00000400,
- EESR_CD = 0x00000200, EESR_RTO = 0x00000100,
- EESR_RMAF = 0x00000080, EESR_CEEF = 0x00000040,
- EESR_CELF = 0x00000020, EESR_RRF = 0x00000010,
- EESR_RTLF = 0x00000008, EESR_RTSF = 0x00000004,
- EESR_PRE = 0x00000002, EESR_CERF = 0x00000001,
-};
-
-
-#ifdef CONFIG_CPU_SUBTYPE_SH7763
-# define TX_CHECK (EESR_TC1 | EESR_FTC)
-# define EESR_ERR_CHECK (EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE \
- | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI)
-# define TX_ERROR_CEHCK (EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE)
-
-#else
-# define TX_CHECK (EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO)
-# define EESR_ERR_CHECK (EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE \
- | EESR_RFRMER | EESR_ADE | EESR_TFE | EESR_TDE | EESR_ECI)
-# define TX_ERROR_CEHCK (EESR_TWB | EESR_TABT | EESR_ADE | EESR_TDE | EESR_TFE)
-#endif
+ EESR_TWB1 = 0x80000000,
+ EESR_TWB = 0x40000000, /* same as TWB0 */
+ EESR_TC1 = 0x20000000,
+ EESR_TUC = 0x10000000,
+ EESR_ROC = 0x08000000,
+ EESR_TABT = 0x04000000,
+ EESR_RABT = 0x02000000,
+ EESR_RFRMER = 0x01000000, /* same as RFCOF */
+ EESR_ADE = 0x00800000,
+ EESR_ECI = 0x00400000,
+ EESR_FTC = 0x00200000, /* same as TC or TC0 */
+ EESR_TDE = 0x00100000,
+ EESR_TFE = 0x00080000, /* same as TFUF */
+ EESR_FRC = 0x00040000, /* same as FR */
+ EESR_RDE = 0x00020000,
+ EESR_RFE = 0x00010000,
+ EESR_CND = 0x00000800,
+ EESR_DLC = 0x00000400,
+ EESR_CD = 0x00000200,
+ EESR_RTO = 0x00000100,
+ EESR_RMAF = 0x00000080,
+ EESR_CEEF = 0x00000040,
+ EESR_CELF = 0x00000020,
+ EESR_RRF = 0x00000010,
+ EESR_RTLF = 0x00000008,
+ EESR_RTSF = 0x00000004,
+ EESR_PRE = 0x00000002,
+ EESR_CERF = 0x00000001,
+};
+
+#define DEFAULT_TX_CHECK (EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | \
+ EESR_RTO)
+#define DEFAULT_EESR_ERR_CHECK (EESR_TWB | EESR_TABT | EESR_RABT | \
+ EESR_RDE | EESR_RFRMER | EESR_ADE | \
+ EESR_TFE | EESR_TDE | EESR_ECI)
+#define DEFAULT_TX_ERROR_CHECK (EESR_TWB | EESR_TABT | EESR_ADE | EESR_TDE | \
+ EESR_TFE)
/* EESIPR */
enum DMAC_IM_BIT {
FCFTR_RFF0 = 0x00010000, FCFTR_RFD2 = 0x00000004,
FCFTR_RFD1 = 0x00000002, FCFTR_RFD0 = 0x00000001,
};
-#define FIFO_F_D_RFF (FCFTR_RFF2|FCFTR_RFF1|FCFTR_RFF0)
-#define FIFO_F_D_RFD (FCFTR_RFD2|FCFTR_RFD1|FCFTR_RFD0)
+#define DEFAULT_FIFO_F_D_RFF (FCFTR_RFF2 | FCFTR_RFF1 | FCFTR_RFF0)
+#define DEFAULT_FIFO_F_D_RFD (FCFTR_RFD2 | FCFTR_RFD1 | FCFTR_RFD0)
/* Transfer descriptor bit */
enum TD_STS_BIT {
#define TD_TFP (TD_TFP1|TD_TFP0)
/* RMCR */
-enum RECV_RST_BIT { RMCR_RST = 0x01, };
+#define DEFAULT_RMCR_VALUE 0x00000000
+
/* ECMR */
enum FELIC_MODE_BIT {
-#ifdef CONFIG_CPU_SUBTYPE_SH7763
ECMR_TRCCM = 0x04000000, ECMR_RCSC = 0x00800000,
ECMR_DPAD = 0x00200000, ECMR_RZPF = 0x00100000,
-#endif
ECMR_ZPF = 0x00080000, ECMR_PFR = 0x00040000, ECMR_RXF = 0x00020000,
ECMR_TXF = 0x00010000, ECMR_MCT = 0x00002000, ECMR_PRCEF = 0x00001000,
ECMR_PMDE = 0x00000200, ECMR_RE = 0x00000040, ECMR_TE = 0x00000020,
- ECMR_ILB = 0x00000008, ECMR_ELB = 0x00000004, ECMR_DM = 0x00000002,
- ECMR_PRM = 0x00000001,
+ ECMR_RTM = 0x00000010, ECMR_ILB = 0x00000008, ECMR_ELB = 0x00000004,
+ ECMR_DM = 0x00000002, ECMR_PRM = 0x00000001,
};
-#ifdef CONFIG_CPU_SUBTYPE_SH7763
-#define ECMR_CHG_DM (ECMR_TRCCM | ECMR_RZPF | ECMR_ZPF |\
- ECMR_PFR | ECMR_RXF | ECMR_TXF | ECMR_MCT)
-#else
-#define ECMR_CHG_DM (ECMR_ZPF | ECMR_PFR ECMR_RXF | ECMR_TXF | ECMR_MCT)
-#endif
-
/* ECSR */
enum ECSR_STATUS_BIT {
-#ifndef CONFIG_CPU_SUBTYPE_SH7763
ECSR_BRCRX = 0x20, ECSR_PSRTO = 0x10,
-#endif
ECSR_LCHNG = 0x04,
ECSR_MPD = 0x02, ECSR_ICD = 0x01,
};
-#ifdef CONFIG_CPU_SUBTYPE_SH7763
-# define ECSR_INIT (ECSR_ICD | ECSIPR_MPDIP)
-#else
-# define ECSR_INIT (ECSR_BRCRX | ECSR_PSRTO | \
- ECSR_LCHNG | ECSR_ICD | ECSIPR_MPDIP)
-#endif
+#define DEFAULT_ECSR_INIT (ECSR_BRCRX | ECSR_PSRTO | ECSR_LCHNG | \
+ ECSR_ICD | ECSIPR_MPDIP)
/* ECSIPR */
enum ECSIPR_STATUS_MASK_BIT {
-#ifndef CONFIG_CPU_SUBTYPE_SH7763
ECSIPR_BRCRXIP = 0x20, ECSIPR_PSRTOIP = 0x10,
-#endif
ECSIPR_LCHNGIP = 0x04,
ECSIPR_MPDIP = 0x02, ECSIPR_ICDIP = 0x01,
};
-#ifdef CONFIG_CPU_SUBTYPE_SH7763
-# define ECSIPR_INIT (ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP)
-#else
-# define ECSIPR_INIT (ECSIPR_BRCRXIP | ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | \
- ECSIPR_ICDIP | ECSIPR_MPDIP)
-#endif
+#define DEFAULT_ECSIPR_INIT (ECSIPR_BRCRXIP | ECSIPR_PSRTOIP | \
+ ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP)
/* APR */
enum APR_BIT {
RPADIR_PADR = 0x0003f,
};
-#if defined(CONFIG_CPU_SUBTYPE_SH7763)
-# define RPADIR_INIT (0x00)
-#else
-# define RPADIR_INIT (RPADIR_PADS1)
-#endif
-
/* RFLR */
#define RFLR_VALUE 0x1000
/* FDR */
-enum FIFO_SIZE_BIT {
- FIFO_SIZE_T = 0x00000700, FIFO_SIZE_R = 0x00000007,
-};
+#define DEFAULT_FDR_INIT 0x00000707
+
enum phy_offsets {
PHY_CTRL = 0, PHY_STAT = 1, PHY_IDT1 = 2, PHY_IDT2 = 3,
PHY_ANA = 4, PHY_ANL = 5, PHY_ANE = 6,
#endif
u32 addr; /* TD2 */
u32 pad1; /* padding data */
-};
+} __attribute__((aligned(2), packed));
/*
* The sh ether Rx buffer descriptors.
#endif
u32 addr; /* RD2 */
u32 pad0; /* padding data */
+} __attribute__((aligned(2), packed));
+
+/* This structure is used by each CPU dependency handling. */
+struct sh_eth_cpu_data {
+ /* optional functions */
+ void (*chip_reset)(struct net_device *ndev);
+ void (*set_duplex)(struct net_device *ndev);
+ void (*set_rate)(struct net_device *ndev);
+
+ /* mandatory initialize value */
+ unsigned long eesipr_value;
+
+ /* optional initialize value */
+ unsigned long ecsr_value;
+ unsigned long ecsipr_value;
+ unsigned long fdr_value;
+ unsigned long fcftr_value;
+ unsigned long rpadir_value;
+ unsigned long rmcr_value;
+
+ /* interrupt checking mask */
+ unsigned long tx_check;
+ unsigned long eesr_err_check;
+ unsigned long tx_error_check;
+
+ /* hardware features */
+ unsigned no_psr:1; /* EtherC DO NOT have PSR */
+ unsigned apr:1; /* EtherC have APR */
+ unsigned mpr:1; /* EtherC have MPR */
+ unsigned tpauser:1; /* EtherC have TPAUSER */
+ unsigned bculr:1; /* EtherC have BCULR */
+ unsigned hw_swap:1; /* E-DMAC have DE bit in EDMR */
+ unsigned rpadir:1; /* E-DMAC have RPADIR */
+ unsigned no_trimd:1; /* E-DMAC DO NOT have TRIMD */
+ unsigned no_ade:1; /* E-DMAC DO NOT have ADE bit in EESR */
};
struct sh_eth_private {
+ struct platform_device *pdev;
+ struct sh_eth_cpu_data *cd;
dma_addr_t rx_desc_dma;
dma_addr_t tx_desc_dma;
struct sh_eth_rxdesc *rx_ring;
u32 cur_rx, dirty_rx; /* Producer/consumer ring indices */
u32 cur_tx, dirty_tx;
u32 rx_buf_sz; /* Based on MTU+slack. */
+ int edmac_endian;
/* MII transceiver section. */
u32 phy_id; /* PHY ID */
struct mii_bus *mii_bus; /* MDIO bus control */
char post_rx; /* POST receive */
char post_fw; /* POST forward */
struct net_device_stats tsu_stats; /* TSU forward status */
+
+ unsigned no_ether_link:1;
+ unsigned ether_link_active_low:1;
};
-#ifdef CONFIG_CPU_SUBTYPE_SH7763
-/* SH7763 has endian control register */
-#define swaps(x, y)
-#else
-static void swaps(char *src, int len)
+static inline void sh_eth_soft_swap(char *src, int len)
{
#ifdef __LITTLE_ENDIAN__
u32 *p = (u32 *)src;
*p = swab32(*p);
#endif
}
-#endif /* CONFIG_CPU_SUBTYPE_SH7763 */
-#endif
+
+#endif /* #ifndef __SH_ETH_H__ */
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