Re: [PATCH] [NET]: Remove PowerPC code from fec.c

From: Greg Ungerer
Date: Mon Jan 28 2008 - 18:59:23 EST

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> ---------- Forwarded message ----------
> Date: Fri, 25 Jan 2008 15:33:45 +0100
> From: Jochen Friedrich <jochen@xxxxxxxx>
> To: "Garzik, Jeff" <jgarzik@xxxxxxxxx>
> Cc: Vitaly Bordug <vitb@xxxxxxxxxxxxxxxxxxx>,
> Scott Wood <scottwood@xxxxxxxxxxxxx>,
> Kumar Gala <galak@xxxxxxxxxxxxxxxxxxx>,
> Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>,
> "Kernel, Linux" <linux-kernel@xxxxxxxxxxxxxxx>,
> "netdev@xxxxxxxxxxxxxxx" <netdev@xxxxxxxxxxxxxxx>,
> linuxppc-dev list <linuxppc-dev@xxxxxxxxxx>, linux-m68k@xxxxxxxxxxxxxxx
> Subject: [PATCH] [NET]: Remove PowerPC code from fec.c
>
> fec.c is only used on M68k Coldfire CPUs. Remove leftover
> PowerPC code from this driver.

I was always hoping that this driver would be supported on both
architectures. After all the underlying eth device is essentially
the same on both.

Anyway... I don't have a problem with this patch, looks ok
the me.

Acked-by: Greg Ungerer <gerg@xxxxxxxxxxx>

Regards
Greg

> Signed-off-by: Jochen Friedrich <jochen@xxxxxxxx>
> ---
> drivers/net/fec.c | 136 +---------------------------------------------------
> 1 files changed, 3 insertions(+), 133 deletions(-)
>
> diff --git a/drivers/net/fec.c b/drivers/net/fec.c
> index 0fbf1bb..0499cbb 100644
> --- a/drivers/net/fec.c
> +++ b/drivers/net/fec.c
> @@ -23,6 +23,9 @@
> *
> * Bug fixes and cleanup by Philippe De Muyter (phdm@xxxxxxxxx)
> * Copyright (c) 2004-2006 Macq Electronique SA.
> + *
> + * This driver is now only used on ColdFire processors. Remove conditional
> + * Powerpc code.
> */
>
> #include <linux/module.h>
> @@ -49,17 +52,9 @@
> #include <asm/pgtable.h>
> #include <asm/cacheflush.h>
>
> -#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || \
> - defined(CONFIG_M5272) || defined(CONFIG_M528x) || \
> - defined(CONFIG_M520x) || defined(CONFIG_M532x)
> #include <asm/coldfire.h>
> #include <asm/mcfsim.h>
> #include "fec.h"
> -#else
> -#include <asm/8xx_immap.h>
> -#include <asm/mpc8xx.h>
> -#include "commproc.h"
> -#endif
>
> #if defined(CONFIG_FEC2)
> #define FEC_MAX_PORTS 2
> @@ -1223,14 +1218,9 @@ static phy_info_t const * const phy_info[] = {
>
> /* ------------------------------------------------------------------------- */
> #if !defined(CONFIG_M532x)
> -#ifdef CONFIG_RPXCLASSIC
> -static void
> -mii_link_interrupt(void *dev_id);
> -#else
> static irqreturn_t
> mii_link_interrupt(int irq, void * dev_id);
> #endif
> -#endif
>
> #if defined(CONFIG_M5272)
> /*
> @@ -1800,121 +1790,6 @@ static void __inline__ fec_uncache(unsigned long addr)
> /* ------------------------------------------------------------------------- */
>
>
> -#else
> -
> -/*
> - * Code specific to the MPC860T setup.
> - */
> -static void __inline__ fec_request_intrs(struct net_device *dev)
> -{
> - volatile immap_t *immap;
> -
> - immap = (immap_t *)IMAP_ADDR; /* pointer to internal registers */
> -
> - if (request_8xxirq(FEC_INTERRUPT, fec_enet_interrupt, 0, "fec", dev) != 0)
> - panic("Could not allocate FEC IRQ!");
> -
> -#ifdef CONFIG_RPXCLASSIC
> - /* Make Port C, bit 15 an input that causes interrupts.
> - */
> - immap->im_ioport.iop_pcpar &= ~0x0001;
> - immap->im_ioport.iop_pcdir &= ~0x0001;
> - immap->im_ioport.iop_pcso &= ~0x0001;
> - immap->im_ioport.iop_pcint |= 0x0001;
> - cpm_install_handler(CPMVEC_PIO_PC15, mii_link_interrupt, dev);
> -
> - /* Make LEDS reflect Link status.
> - */
> - *((uint *) RPX_CSR_ADDR) &= ~BCSR2_FETHLEDMODE;
> -#endif
> -#ifdef CONFIG_FADS
> - if (request_8xxirq(SIU_IRQ2, mii_link_interrupt, 0, "mii", dev) != 0)
> - panic("Could not allocate MII IRQ!");
> -#endif
> -}
> -
> -static void __inline__ fec_get_mac(struct net_device *dev)
> -{
> - bd_t *bd;
> -
> - bd = (bd_t *)__res;
> - memcpy(dev->dev_addr, bd->bi_enetaddr, ETH_ALEN);
> -
> -#ifdef CONFIG_RPXCLASSIC
> - /* The Embedded Planet boards have only one MAC address in
> - * the EEPROM, but can have two Ethernet ports. For the
> - * FEC port, we create another address by setting one of
> - * the address bits above something that would have (up to
> - * now) been allocated.
> - */
> - dev->dev_adrd[3] |= 0x80;
> -#endif
> -}
> -
> -static void __inline__ fec_set_mii(struct net_device *dev, struct fec_enet_private *fep)
> -{
> - extern uint _get_IMMR(void);
> - volatile immap_t *immap;
> - volatile fec_t *fecp;
> -
> - fecp = fep->hwp;
> - immap = (immap_t *)IMAP_ADDR; /* pointer to internal registers */
> -
> - /* Configure all of port D for MII.
> - */
> - immap->im_ioport.iop_pdpar = 0x1fff;
> -
> - /* Bits moved from Rev. D onward.
> - */
> - if ((_get_IMMR() & 0xffff) < 0x0501)
> - immap->im_ioport.iop_pddir = 0x1c58; /* Pre rev. D */
> - else
> - immap->im_ioport.iop_pddir = 0x1fff; /* Rev. D and later */
> -
> - /* Set MII speed to 2.5 MHz
> - */
> - fecp->fec_mii_speed = fep->phy_speed =
> - ((bd->bi_busfreq * 1000000) / 2500000) & 0x7e;
> -}
> -
> -static void __inline__ fec_enable_phy_intr(void)
> -{
> - volatile fec_t *fecp;
> -
> - fecp = fep->hwp;
> -
> - /* Enable MII command finished interrupt
> - */
> - fecp->fec_ivec = (FEC_INTERRUPT/2) << 29;
> -}
> -
> -static void __inline__ fec_disable_phy_intr(void)
> -{
> -}
> -
> -static void __inline__ fec_phy_ack_intr(void)
> -{
> -}
> -
> -static void __inline__ fec_localhw_setup(void)
> -{
> - volatile fec_t *fecp;
> -
> - fecp = fep->hwp;
> - fecp->fec_r_hash = PKT_MAXBUF_SIZE;
> - /* Enable big endian and don't care about SDMA FC.
> - */
> - fecp->fec_fun_code = 0x78000000;
> -}
> -
> -static void __inline__ fec_uncache(unsigned long addr)
> -{
> - pte_t *pte;
> - pte = va_to_pte(mem_addr);
> - pte_val(*pte) |= _PAGE_NO_CACHE;
> - flush_tlb_page(init_mm.mmap, mem_addr);
> -}
> -
> #endif
>
> /* ------------------------------------------------------------------------- */
> @@ -2126,13 +2001,8 @@ mii_discover_phy(uint mii_reg, struct net_device *dev)
>
> /* This interrupt occurs when the PHY detects a link change.
> */
> -#ifdef CONFIG_RPXCLASSIC
> -static void
> -mii_link_interrupt(void *dev_id)
> -#else
> static irqreturn_t
> mii_link_interrupt(int irq, void * dev_id)
> -#endif
> {
> struct net_device *dev = dev_id;
> struct fec_enet_private *fep = netdev_priv(dev);

------------------------------------------------------------------------
Greg Ungerer -- Chief Software Dude EMAIL: gerg@xxxxxxxxxxxx
SnapGear -- a Secure Computing Company PHONE: +61 7 3435 2888
825 Stanley St, FAX: +61 7 3891 3630
Woolloongabba, QLD, 4102, Australia WEB: http://www.SnapGear.com
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Next message: Matthew Wilcox: "Pull request: TASK_KILLABLE"
Previous message: Robert Hancock: "Re: Blu Ray LG GGW-H20L crashes Linux"
In reply to: Geert Uytterhoeven: "Re: [PATCH] [NET]: Remove PowerPC code from fec.c"
Next in thread: Frans Pop: "Re: [PATCH] [NET]: Remove PowerPC code from fec.c"
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