From 37448f7d39717db7c1098c1a88b9074694c69797 Mon Sep 17 00:00:00 2001 From: Eugene Surovegin Date: Mon, 10 Oct 2005 16:58:14 -0700 Subject: [PATCH] New PowerPC 4xx on-chip ethernet controller driver This patch replaces current PowerPC 4xx EMAC driver with new, re-written from the scratch version. This patch is quite big (~234K) because there is virtualy 0% of common code between old and new version. New driver uses NAPI, it solves stability problems under heavy packet load and low memory, corrects chip register access and fixes numerous small bugs I don't even remember now. This patch has been tested on all supported in 2.6 PPC 4xx boards. It's been used in production for almost a year now on custom 4xx hardware. PPC32 specific parts are already upstream. Patch was acked by the current EMAC driver maintainer (Matt Porter). I will be maintaining this new version. Signed-off-by: Eugene Surovegin -- Kconfig | 72 ibm_emac/Makefile | 13 ibm_emac/ibm_emac.h | 418 +++-- ibm_emac/ibm_emac_core.c | 3414 ++++++++++++++++++++++++---------------------- ibm_emac/ibm_emac_core.h | 313 ++-- ibm_emac/ibm_emac_debug.c | 377 ++--- ibm_emac/ibm_emac_debug.h | 63 ibm_emac/ibm_emac_mal.c | 674 +++++---- ibm_emac/ibm_emac_mal.h | 336 +++- ibm_emac/ibm_emac_phy.c | 335 ++-- ibm_emac/ibm_emac_phy.h | 105 - ibm_emac/ibm_emac_rgmii.c | 201 ++ ibm_emac/ibm_emac_rgmii.h | 68 ibm_emac/ibm_emac_tah.c | 111 + ibm_emac/ibm_emac_tah.h | 96 - ibm_emac/ibm_emac_zmii.c | 255 +++ ibm_emac/ibm_emac_zmii.h | 114 - 17 files changed, 4114 insertions(+), 2851 deletions(-) Signed-off-by: Jeff Garzik --- drivers/net/ibm_emac/ibm_emac_rgmii.h | 60 +++++++++++++++++------------------ 1 file changed, 30 insertions(+), 30 deletions(-) (limited to 'drivers/net/ibm_emac/ibm_emac_rgmii.h') diff --git a/drivers/net/ibm_emac/ibm_emac_rgmii.h b/drivers/net/ibm_emac/ibm_emac_rgmii.h index 49f188f4ea6..a1ffb8a44ff 100644 --- a/drivers/net/ibm_emac/ibm_emac_rgmii.h +++ b/drivers/net/ibm_emac/ibm_emac_rgmii.h @@ -1,5 +1,7 @@ /* - * Defines for the IBM RGMII bridge + * drivers/net/ibm_emac/ibm_emac_rgmii.c + * + * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support. * * Based on ocp_zmii.h/ibm_emac_zmii.h * Armin Kuster akuster@mvista.com @@ -7,6 +9,9 @@ * Copyright 2004 MontaVista Software, Inc. * Matt Porter * + * Copyright (c) 2004, 2005 Zultys Technologies. + * Eugene Surovegin or + * * 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 @@ -19,47 +24,42 @@ #include /* RGMII bridge */ -typedef struct rgmii_regs { +struct rgmii_regs { u32 fer; /* Function enable register */ u32 ssr; /* Speed select register */ -} rgmii_t; - -#define RGMII_INPUTS 4 +}; /* RGMII device */ struct ibm_ocp_rgmii { struct rgmii_regs *base; - int mode[RGMII_INPUTS]; int users; /* number of EMACs using this RGMII bridge */ }; -/* Fuctional Enable Reg */ -#define RGMII_FER_MASK(x) (0x00000007 << (4*x)) -#define RGMII_RTBI 0x00000004 -#define RGMII_RGMII 0x00000005 -#define RGMII_TBI 0x00000006 -#define RGMII_GMII 0x00000007 - -/* Speed Selection reg */ +#ifdef CONFIG_IBM_EMAC_RGMII +int rgmii_attach(void *emac) __init; -#define RGMII_SP2_100 0x00000002 -#define RGMII_SP2_1000 0x00000004 -#define RGMII_SP3_100 0x00000200 -#define RGMII_SP3_1000 0x00000400 +void __rgmii_fini(struct ocp_device *ocpdev, int input) __exit; +static inline void rgmii_fini(struct ocp_device *ocpdev, int input) +{ + if (ocpdev) + __rgmii_fini(ocpdev, input); +} -#define RGMII_MII2_SPDMASK 0x00000007 -#define RGMII_MII3_SPDMASK 0x00000700 +void rgmii_set_speed(struct ocp_device *ocpdev, int input, int speed); -#define RGMII_MII2_100MB RGMII_SP2_100 & ~RGMII_SP2_1000 -#define RGMII_MII2_1000MB RGMII_SP2_1000 & ~RGMII_SP2_100 -#define RGMII_MII2_10MB ~(RGMII_SP2_100 | RGMII_SP2_1000) -#define RGMII_MII3_100MB RGMII_SP3_100 & ~RGMII_SP3_1000 -#define RGMII_MII3_1000MB RGMII_SP3_1000 & ~RGMII_SP3_100 -#define RGMII_MII3_10MB ~(RGMII_SP3_100 | RGMII_SP3_1000) +int __rgmii_get_regs_len(struct ocp_device *ocpdev); +static inline int rgmii_get_regs_len(struct ocp_device *ocpdev) +{ + return ocpdev ? __rgmii_get_regs_len(ocpdev) : 0; +} -#define RTBI 0 -#define RGMII 1 -#define TBI 2 -#define GMII 3 +void *rgmii_dump_regs(struct ocp_device *ocpdev, void *buf); +#else +# define rgmii_attach(x) 0 +# define rgmii_fini(x,y) ((void)0) +# define rgmii_set_speed(x,y,z) ((void)0) +# define rgmii_get_regs_len(x) 0 +# define rgmii_dump_regs(x,buf) (buf) +#endif /* !CONFIG_IBM_EMAC_RGMII */ #endif /* _IBM_EMAC_RGMII_H_ */ -- cgit v1.2.3-18-g5258