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Diffstat (limited to 'drivers/net/ibm_newemac/mal.h')
| -rw-r--r-- | drivers/net/ibm_newemac/mal.h | 316 |
1 files changed, 0 insertions, 316 deletions
diff --git a/drivers/net/ibm_newemac/mal.h b/drivers/net/ibm_newemac/mal.h deleted file mode 100644 index 66084214bf45..000000000000 --- a/drivers/net/ibm_newemac/mal.h +++ /dev/null @@ -1,316 +0,0 @@ -/* - * drivers/net/ibm_newemac/mal.h - * - * Memory Access Layer (MAL) support - * - * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. - * <benh@kernel.crashing.org> - * - * Based on the arch/ppc version of the driver: - * - * Copyright (c) 2004, 2005 Zultys Technologies. - * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> - * - * Based on original work by - * Armin Kuster <akuster@mvista.com> - * Copyright 2002 MontaVista Softare Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - */ -#ifndef __IBM_NEWEMAC_MAL_H -#define __IBM_NEWEMAC_MAL_H - -/* - * There are some variations on the MAL, we express them in this driver as - * MAL Version 1 and 2 though that doesn't match any IBM terminology. - * - * We call MAL 1 the version in 405GP, 405GPR, 405EP, 440EP, 440GR and - * NP405H. - * - * We call MAL 2 the version in 440GP, 440GX, 440SP, 440SPE and Axon - * - * The driver expects a "version" property in the emac node containing - * a number 1 or 2. New device-trees for EMAC capable platforms are thus - * required to include that when porting to arch/powerpc. - */ - -/* MALx DCR registers */ -#define MAL_CFG 0x00 -#define MAL_CFG_SR 0x80000000 -#define MAL_CFG_PLBB 0x00004000 -#define MAL_CFG_OPBBL 0x00000080 -#define MAL_CFG_EOPIE 0x00000004 -#define MAL_CFG_LEA 0x00000002 -#define MAL_CFG_SD 0x00000001 - -/* MAL V1 CFG bits */ -#define MAL1_CFG_PLBP_MASK 0x00c00000 -#define MAL1_CFG_PLBP_10 0x00800000 -#define MAL1_CFG_GA 0x00200000 -#define MAL1_CFG_OA 0x00100000 -#define MAL1_CFG_PLBLE 0x00080000 -#define MAL1_CFG_PLBT_MASK 0x00078000 -#define MAL1_CFG_DEFAULT (MAL1_CFG_PLBP_10 | MAL1_CFG_PLBT_MASK) - -/* MAL V2 CFG bits */ -#define MAL2_CFG_RPP_MASK 0x00c00000 -#define MAL2_CFG_RPP_10 0x00800000 -#define MAL2_CFG_RMBS_MASK 0x00300000 -#define MAL2_CFG_WPP_MASK 0x000c0000 -#define MAL2_CFG_WPP_10 0x00080000 -#define MAL2_CFG_WMBS_MASK 0x00030000 -#define MAL2_CFG_PLBLE 0x00008000 -#define MAL2_CFG_DEFAULT (MAL2_CFG_RMBS_MASK | MAL2_CFG_WMBS_MASK | \ - MAL2_CFG_RPP_10 | MAL2_CFG_WPP_10) - -#define MAL_ESR 0x01 -#define MAL_ESR_EVB 0x80000000 -#define MAL_ESR_CIDT 0x40000000 -#define MAL_ESR_CID_MASK 0x3e000000 -#define MAL_ESR_CID_SHIFT 25 -#define MAL_ESR_DE 0x00100000 -#define MAL_ESR_OTE 0x00040000 -#define MAL_ESR_OSE 0x00020000 -#define MAL_ESR_PEIN 0x00010000 -#define MAL_ESR_DEI 0x00000010 -#define MAL_ESR_OTEI 0x00000004 -#define MAL_ESR_OSEI 0x00000002 -#define MAL_ESR_PBEI 0x00000001 - -/* MAL V1 ESR bits */ -#define MAL1_ESR_ONE 0x00080000 -#define MAL1_ESR_ONEI 0x00000008 - -/* MAL V2 ESR bits */ -#define MAL2_ESR_PTE 0x00800000 -#define MAL2_ESR_PRE 0x00400000 -#define MAL2_ESR_PWE 0x00200000 -#define MAL2_ESR_PTEI 0x00000080 -#define MAL2_ESR_PREI 0x00000040 -#define MAL2_ESR_PWEI 0x00000020 - - -#define MAL_IER 0x02 -#define MAL_IER_DE 0x00000010 -#define MAL_IER_OTE 0x00000004 -#define MAL_IER_OE 0x00000002 -#define MAL_IER_PE 0x00000001 -/* MAL V1 IER bits */ -#define MAL1_IER_NWE 0x00000008 -#define MAL1_IER_SOC_EVENTS MAL1_IER_NWE -#define MAL1_IER_EVENTS (MAL1_IER_SOC_EVENTS | MAL_IER_DE | \ - MAL_IER_OTE | MAL_IER_OE | MAL_IER_PE) - -/* MAL V2 IER bits */ -#define MAL2_IER_PT 0x00000080 -#define MAL2_IER_PRE 0x00000040 -#define MAL2_IER_PWE 0x00000020 -#define MAL2_IER_SOC_EVENTS (MAL2_IER_PT | MAL2_IER_PRE | MAL2_IER_PWE) -#define MAL2_IER_EVENTS (MAL2_IER_SOC_EVENTS | MAL_IER_DE | \ - MAL_IER_OTE | MAL_IER_OE | MAL_IER_PE) - - -#define MAL_TXCASR 0x04 -#define MAL_TXCARR 0x05 -#define MAL_TXEOBISR 0x06 -#define MAL_TXDEIR 0x07 -#define MAL_RXCASR 0x10 -#define MAL_RXCARR 0x11 -#define MAL_RXEOBISR 0x12 -#define MAL_RXDEIR 0x13 -#define MAL_TXCTPR(n) ((n) + 0x20) -#define MAL_RXCTPR(n) ((n) + 0x40) -#define MAL_RCBS(n) ((n) + 0x60) - -/* In reality MAL can handle TX buffers up to 4095 bytes long, - * but this isn't a good round number :) --ebs - */ -#define MAL_MAX_TX_SIZE 4080 -#define MAL_MAX_RX_SIZE 4080 - -static inline int mal_rx_size(int len) -{ - len = (len + 0xf) & ~0xf; - return len > MAL_MAX_RX_SIZE ? MAL_MAX_RX_SIZE : len; -} - -static inline int mal_tx_chunks(int len) -{ - return (len + MAL_MAX_TX_SIZE - 1) / MAL_MAX_TX_SIZE; -} - -#define MAL_CHAN_MASK(n) (0x80000000 >> (n)) - -/* MAL Buffer Descriptor structure */ -struct mal_descriptor { - u16 ctrl; /* MAL / Commac status control bits */ - u16 data_len; /* Max length is 4K-1 (12 bits) */ - u32 data_ptr; /* pointer to actual data buffer */ -}; - -/* the following defines are for the MadMAL status and control registers. */ -/* MADMAL transmit and receive status/control bits */ -#define MAL_RX_CTRL_EMPTY 0x8000 -#define MAL_RX_CTRL_WRAP 0x4000 -#define MAL_RX_CTRL_CM 0x2000 -#define MAL_RX_CTRL_LAST 0x1000 -#define MAL_RX_CTRL_FIRST 0x0800 -#define MAL_RX_CTRL_INTR 0x0400 -#define MAL_RX_CTRL_SINGLE (MAL_RX_CTRL_LAST | MAL_RX_CTRL_FIRST) -#define MAL_IS_SINGLE_RX(ctrl) (((ctrl) & MAL_RX_CTRL_SINGLE) == MAL_RX_CTRL_SINGLE) - -#define MAL_TX_CTRL_READY 0x8000 -#define MAL_TX_CTRL_WRAP 0x4000 -#define MAL_TX_CTRL_CM 0x2000 -#define MAL_TX_CTRL_LAST 0x1000 -#define MAL_TX_CTRL_INTR 0x0400 - -struct mal_commac_ops { - void (*poll_tx) (void *dev); - int (*poll_rx) (void *dev, int budget); - int (*peek_rx) (void *dev); - void (*rxde) (void *dev); -}; - -struct mal_commac { - struct mal_commac_ops *ops; - void *dev; - struct list_head poll_list; - long flags; -#define MAL_COMMAC_RX_STOPPED 0 -#define MAL_COMMAC_POLL_DISABLED 1 - u32 tx_chan_mask; - u32 rx_chan_mask; - struct list_head list; -}; - -struct mal_instance { - int version; - dcr_host_t dcr_host; - - int num_tx_chans; /* Number of TX channels */ - int num_rx_chans; /* Number of RX channels */ - int txeob_irq; /* TX End Of Buffer IRQ */ - int rxeob_irq; /* RX End Of Buffer IRQ */ - int txde_irq; /* TX Descriptor Error IRQ */ - int rxde_irq; /* RX Descriptor Error IRQ */ - int serr_irq; /* MAL System Error IRQ */ - - struct list_head poll_list; - struct napi_struct napi; - - struct list_head list; - u32 tx_chan_mask; - u32 rx_chan_mask; - - dma_addr_t bd_dma; - struct mal_descriptor *bd_virt; - - struct platform_device *ofdev; - int index; - spinlock_t lock; - - struct net_device dummy_dev; - - unsigned int features; -}; - -static inline u32 get_mal_dcrn(struct mal_instance *mal, int reg) -{ - return dcr_read(mal->dcr_host, reg); -} - -static inline void set_mal_dcrn(struct mal_instance *mal, int reg, u32 val) -{ - dcr_write(mal->dcr_host, reg, val); -} - -/* Features of various MAL implementations */ - -/* Set if you have interrupt coalescing and you have to clear the SDR - * register for TXEOB and RXEOB interrupts to work - */ -#define MAL_FTR_CLEAR_ICINTSTAT 0x00000001 - -/* Set if your MAL has SERR, TXDE, and RXDE OR'd into a single UIC - * interrupt - */ -#define MAL_FTR_COMMON_ERR_INT 0x00000002 - -enum { - MAL_FTRS_ALWAYS = 0, - - MAL_FTRS_POSSIBLE = -#ifdef CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT - MAL_FTR_CLEAR_ICINTSTAT | -#endif -#ifdef CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR - MAL_FTR_COMMON_ERR_INT | -#endif - 0, -}; - -static inline int mal_has_feature(struct mal_instance *dev, - unsigned long feature) -{ - return (MAL_FTRS_ALWAYS & feature) || - (MAL_FTRS_POSSIBLE & dev->features & feature); -} - -/* Register MAL devices */ -int mal_init(void); -void mal_exit(void); - -int mal_register_commac(struct mal_instance *mal, - struct mal_commac *commac); -void mal_unregister_commac(struct mal_instance *mal, - struct mal_commac *commac); -int mal_set_rcbs(struct mal_instance *mal, int channel, unsigned long size); - -/* Returns BD ring offset for a particular channel - (in 'struct mal_descriptor' elements) -*/ -int mal_tx_bd_offset(struct mal_instance *mal, int channel); -int mal_rx_bd_offset(struct mal_instance *mal, int channel); - -void mal_enable_tx_channel(struct mal_instance *mal, int channel); -void mal_disable_tx_channel(struct mal_instance *mal, int channel); -void mal_enable_rx_channel(struct mal_instance *mal, int channel); -void mal_disable_rx_channel(struct mal_instance *mal, int channel); - -void mal_poll_disable(struct mal_instance *mal, struct mal_commac *commac); -void mal_poll_enable(struct mal_instance *mal, struct mal_commac *commac); - -/* Add/remove EMAC to/from MAL polling list */ -void mal_poll_add(struct mal_instance *mal, struct mal_commac *commac); -void mal_poll_del(struct mal_instance *mal, struct mal_commac *commac); - -/* Ethtool MAL registers */ -struct mal_regs { - u32 tx_count; - u32 rx_count; - - u32 cfg; - u32 esr; - u32 ier; - u32 tx_casr; - u32 tx_carr; - u32 tx_eobisr; - u32 tx_deir; - u32 rx_casr; - u32 rx_carr; - u32 rx_eobisr; - u32 rx_deir; - u32 tx_ctpr[32]; - u32 rx_ctpr[32]; - u32 rcbs[32]; -}; - -int mal_get_regs_len(struct mal_instance *mal); -void *mal_dump_regs(struct mal_instance *mal, void *buf); - -#endif /* __IBM_NEWEMAC_MAL_H */ |