From de69a4f240a1d43bc6a587c836c5ce1c66e36f23 Mon Sep 17 00:00:00 2001 From: Jeff Kirsher Date: Mon, 13 Jun 2011 10:51:34 -0700 Subject: s6gmac: Move the s6gmac drivers Move the s6gmac driver to drivers/net/ethernet/ and make the necessary Kconfig and Makefile changes. CC: Oskar Schirmer Signed-off-by: Jeff Kirsher --- drivers/net/Kconfig | 11 - drivers/net/Makefile | 1 - drivers/net/ethernet/Kconfig | 12 + drivers/net/ethernet/Makefile | 1 + drivers/net/ethernet/s6gmac.c | 1072 +++++++++++++++++++++++++++++++++++++++++ drivers/net/s6gmac.c | 1072 ----------------------------------------- 6 files changed, 1085 insertions(+), 1084 deletions(-) create mode 100644 drivers/net/ethernet/s6gmac.c delete mode 100644 drivers/net/s6gmac.c diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index a96cf1871336..134c3a4ff423 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -643,17 +643,6 @@ config JME To compile this driver as a module, choose M here. The module will be called jme. -config S6GMAC - tristate "S6105 GMAC ethernet support" - depends on XTENSA_VARIANT_S6000 - select PHYLIB - help - This driver supports the on chip ethernet device on the - S6105 xtensa processor. - - To compile this driver as a module, choose M here. The module - will be called s6gmac. - endif # NETDEV_1000 # diff --git a/drivers/net/Makefile b/drivers/net/Makefile index d7ac2f8e031c..938484f8a467 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -83,7 +83,6 @@ obj-$(CONFIG_LANTIQ_ETOP) += lantiq_etop.o obj-$(CONFIG_DNET) += dnet.o obj-$(CONFIG_MACB) += macb.o -obj-$(CONFIG_S6GMAC) += s6gmac.o obj-$(CONFIG_ARM) += arm/ obj-$(CONFIG_DEV_APPLETALK) += appletalk/ diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig index 8f404ea4f978..f53a4bc53ddb 100644 --- a/drivers/net/ethernet/Kconfig +++ b/drivers/net/ethernet/Kconfig @@ -43,6 +43,18 @@ source "drivers/net/ethernet/pasemi/Kconfig" source "drivers/net/ethernet/qlogic/Kconfig" source "drivers/net/ethernet/racal/Kconfig" source "drivers/net/ethernet/realtek/Kconfig" + +config S6GMAC + tristate "S6105 GMAC ethernet support" + depends on XTENSA_VARIANT_S6000 + select PHYLIB + ---help--- + This driver supports the on chip ethernet device on the + S6105 xtensa processor. + + To compile this driver as a module, choose M here. The module + will be called s6gmac. + source "drivers/net/ethernet/seeq/Kconfig" source "drivers/net/ethernet/sis/Kconfig" source "drivers/net/ethernet/sfc/Kconfig" diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile index 6cf7f99fe3d8..4491d8491adb 100644 --- a/drivers/net/ethernet/Makefile +++ b/drivers/net/ethernet/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_NET_VENDOR_PASEMI) += pasemi/ obj-$(CONFIG_NET_VENDOR_QLOGIC) += qlogic/ obj-$(CONFIG_NET_VENDOR_RACAL) += racal/ obj-$(CONFIG_NET_VENDOR_REALTEK) += realtek/ +obj-$(CONFIG_S6GMAC) += s6gmac.o obj-$(CONFIG_NET_VENDOR_SEEQ) += seeq/ obj-$(CONFIG_NET_VENDOR_SIS) += sis/ obj-$(CONFIG_SFC) += sfc/ diff --git a/drivers/net/ethernet/s6gmac.c b/drivers/net/ethernet/s6gmac.c new file mode 100644 index 000000000000..a7ff8ea342b4 --- /dev/null +++ b/drivers/net/ethernet/s6gmac.c @@ -0,0 +1,1072 @@ +/* + * Ethernet driver for S6105 on chip network device + * (c)2008 emlix GmbH http://www.emlix.com + * Authors: Oskar Schirmer + * Daniel Gloeckner + * + * 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. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DRV_NAME "s6gmac" +#define DRV_PRMT DRV_NAME ": " + + +/* register declarations */ + +#define S6_GMAC_MACCONF1 0x000 +#define S6_GMAC_MACCONF1_TXENA 0 +#define S6_GMAC_MACCONF1_SYNCTX 1 +#define S6_GMAC_MACCONF1_RXENA 2 +#define S6_GMAC_MACCONF1_SYNCRX 3 +#define S6_GMAC_MACCONF1_TXFLOWCTRL 4 +#define S6_GMAC_MACCONF1_RXFLOWCTRL 5 +#define S6_GMAC_MACCONF1_LOOPBACK 8 +#define S6_GMAC_MACCONF1_RESTXFUNC 16 +#define S6_GMAC_MACCONF1_RESRXFUNC 17 +#define S6_GMAC_MACCONF1_RESTXMACCTRL 18 +#define S6_GMAC_MACCONF1_RESRXMACCTRL 19 +#define S6_GMAC_MACCONF1_SIMULRES 30 +#define S6_GMAC_MACCONF1_SOFTRES 31 +#define S6_GMAC_MACCONF2 0x004 +#define S6_GMAC_MACCONF2_FULL 0 +#define S6_GMAC_MACCONF2_CRCENA 1 +#define S6_GMAC_MACCONF2_PADCRCENA 2 +#define S6_GMAC_MACCONF2_LENGTHFCHK 4 +#define S6_GMAC_MACCONF2_HUGEFRAMENA 5 +#define S6_GMAC_MACCONF2_IFMODE 8 +#define S6_GMAC_MACCONF2_IFMODE_NIBBLE 1 +#define S6_GMAC_MACCONF2_IFMODE_BYTE 2 +#define S6_GMAC_MACCONF2_IFMODE_MASK 3 +#define S6_GMAC_MACCONF2_PREAMBLELEN 12 +#define S6_GMAC_MACCONF2_PREAMBLELEN_MASK 0x0F +#define S6_GMAC_MACIPGIFG 0x008 +#define S6_GMAC_MACIPGIFG_B2BINTERPGAP 0 +#define S6_GMAC_MACIPGIFG_B2BINTERPGAP_MASK 0x7F +#define S6_GMAC_MACIPGIFG_MINIFGENFORCE 8 +#define S6_GMAC_MACIPGIFG_B2BINTERPGAP2 16 +#define S6_GMAC_MACIPGIFG_B2BINTERPGAP1 24 +#define S6_GMAC_MACHALFDUPLEX 0x00C +#define S6_GMAC_MACHALFDUPLEX_COLLISWIN 0 +#define S6_GMAC_MACHALFDUPLEX_COLLISWIN_MASK 0x3F +#define S6_GMAC_MACHALFDUPLEX_RETXMAX 12 +#define S6_GMAC_MACHALFDUPLEX_RETXMAX_MASK 0x0F +#define S6_GMAC_MACHALFDUPLEX_EXCESSDEF 16 +#define S6_GMAC_MACHALFDUPLEX_NOBACKOFF 17 +#define S6_GMAC_MACHALFDUPLEX_BPNOBCKOF 18 +#define S6_GMAC_MACHALFDUPLEX_ALTBEBENA 19 +#define S6_GMAC_MACHALFDUPLEX_ALTBEBTRN 20 +#define S6_GMAC_MACHALFDUPLEX_ALTBEBTR_MASK 0x0F +#define S6_GMAC_MACMAXFRAMELEN 0x010 +#define S6_GMAC_MACMIICONF 0x020 +#define S6_GMAC_MACMIICONF_CSEL 0 +#define S6_GMAC_MACMIICONF_CSEL_DIV10 0 +#define S6_GMAC_MACMIICONF_CSEL_DIV12 1 +#define S6_GMAC_MACMIICONF_CSEL_DIV14 2 +#define S6_GMAC_MACMIICONF_CSEL_DIV18 3 +#define S6_GMAC_MACMIICONF_CSEL_DIV24 4 +#define S6_GMAC_MACMIICONF_CSEL_DIV34 5 +#define S6_GMAC_MACMIICONF_CSEL_DIV68 6 +#define S6_GMAC_MACMIICONF_CSEL_DIV168 7 +#define S6_GMAC_MACMIICONF_CSEL_MASK 7 +#define S6_GMAC_MACMIICONF_PREAMBLESUPR 4 +#define S6_GMAC_MACMIICONF_SCANAUTOINCR 5 +#define S6_GMAC_MACMIICMD 0x024 +#define S6_GMAC_MACMIICMD_READ 0 +#define S6_GMAC_MACMIICMD_SCAN 1 +#define S6_GMAC_MACMIIADDR 0x028 +#define S6_GMAC_MACMIIADDR_REG 0 +#define S6_GMAC_MACMIIADDR_REG_MASK 0x1F +#define S6_GMAC_MACMIIADDR_PHY 8 +#define S6_GMAC_MACMIIADDR_PHY_MASK 0x1F +#define S6_GMAC_MACMIICTRL 0x02C +#define S6_GMAC_MACMIISTAT 0x030 +#define S6_GMAC_MACMIIINDI 0x034 +#define S6_GMAC_MACMIIINDI_BUSY 0 +#define S6_GMAC_MACMIIINDI_SCAN 1 +#define S6_GMAC_MACMIIINDI_INVAL 2 +#define S6_GMAC_MACINTERFSTAT 0x03C +#define S6_GMAC_MACINTERFSTAT_LINKFAIL 3 +#define S6_GMAC_MACINTERFSTAT_EXCESSDEF 9 +#define S6_GMAC_MACSTATADDR1 0x040 +#define S6_GMAC_MACSTATADDR2 0x044 + +#define S6_GMAC_FIFOCONF0 0x048 +#define S6_GMAC_FIFOCONF0_HSTRSTWT 0 +#define S6_GMAC_FIFOCONF0_HSTRSTSR 1 +#define S6_GMAC_FIFOCONF0_HSTRSTFR 2 +#define S6_GMAC_FIFOCONF0_HSTRSTST 3 +#define S6_GMAC_FIFOCONF0_HSTRSTFT 4 +#define S6_GMAC_FIFOCONF0_WTMENREQ 8 +#define S6_GMAC_FIFOCONF0_SRFENREQ 9 +#define S6_GMAC_FIFOCONF0_FRFENREQ 10 +#define S6_GMAC_FIFOCONF0_STFENREQ 11 +#define S6_GMAC_FIFOCONF0_FTFENREQ 12 +#define S6_GMAC_FIFOCONF0_WTMENRPLY 16 +#define S6_GMAC_FIFOCONF0_SRFENRPLY 17 +#define S6_GMAC_FIFOCONF0_FRFENRPLY 18 +#define S6_GMAC_FIFOCONF0_STFENRPLY 19 +#define S6_GMAC_FIFOCONF0_FTFENRPLY 20 +#define S6_GMAC_FIFOCONF1 0x04C +#define S6_GMAC_FIFOCONF2 0x050 +#define S6_GMAC_FIFOCONF2_CFGLWM 0 +#define S6_GMAC_FIFOCONF2_CFGHWM 16 +#define S6_GMAC_FIFOCONF3 0x054 +#define S6_GMAC_FIFOCONF3_CFGFTTH 0 +#define S6_GMAC_FIFOCONF3_CFGHWMFT 16 +#define S6_GMAC_FIFOCONF4 0x058 +#define S6_GMAC_FIFOCONF_RSV_PREVDROP 0 +#define S6_GMAC_FIFOCONF_RSV_RUNT 1 +#define S6_GMAC_FIFOCONF_RSV_FALSECAR 2 +#define S6_GMAC_FIFOCONF_RSV_CODEERR 3 +#define S6_GMAC_FIFOCONF_RSV_CRCERR 4 +#define S6_GMAC_FIFOCONF_RSV_LENGTHERR 5 +#define S6_GMAC_FIFOCONF_RSV_LENRANGE 6 +#define S6_GMAC_FIFOCONF_RSV_OK 7 +#define S6_GMAC_FIFOCONF_RSV_MULTICAST 8 +#define S6_GMAC_FIFOCONF_RSV_BROADCAST 9 +#define S6_GMAC_FIFOCONF_RSV_DRIBBLE 10 +#define S6_GMAC_FIFOCONF_RSV_CTRLFRAME 11 +#define S6_GMAC_FIFOCONF_RSV_PAUSECTRL 12 +#define S6_GMAC_FIFOCONF_RSV_UNOPCODE 13 +#define S6_GMAC_FIFOCONF_RSV_VLANTAG 14 +#define S6_GMAC_FIFOCONF_RSV_LONGEVENT 15 +#define S6_GMAC_FIFOCONF_RSV_TRUNCATED 16 +#define S6_GMAC_FIFOCONF_RSV_MASK 0x3FFFF +#define S6_GMAC_FIFOCONF5 0x05C +#define S6_GMAC_FIFOCONF5_DROPLT64 18 +#define S6_GMAC_FIFOCONF5_CFGBYTM 19 +#define S6_GMAC_FIFOCONF5_RXDROPSIZE 20 +#define S6_GMAC_FIFOCONF5_RXDROPSIZE_MASK 0xF + +#define S6_GMAC_STAT_REGS 0x080 +#define S6_GMAC_STAT_SIZE_MIN 12 +#define S6_GMAC_STATTR64 0x080 +#define S6_GMAC_STATTR64_SIZE 18 +#define S6_GMAC_STATTR127 0x084 +#define S6_GMAC_STATTR127_SIZE 18 +#define S6_GMAC_STATTR255 0x088 +#define S6_GMAC_STATTR255_SIZE 18 +#define S6_GMAC_STATTR511 0x08C +#define S6_GMAC_STATTR511_SIZE 18 +#define S6_GMAC_STATTR1K 0x090 +#define S6_GMAC_STATTR1K_SIZE 18 +#define S6_GMAC_STATTRMAX 0x094 +#define S6_GMAC_STATTRMAX_SIZE 18 +#define S6_GMAC_STATTRMGV 0x098 +#define S6_GMAC_STATTRMGV_SIZE 18 +#define S6_GMAC_STATRBYT 0x09C +#define S6_GMAC_STATRBYT_SIZE 24 +#define S6_GMAC_STATRPKT 0x0A0 +#define S6_GMAC_STATRPKT_SIZE 18 +#define S6_GMAC_STATRFCS 0x0A4 +#define S6_GMAC_STATRFCS_SIZE 12 +#define S6_GMAC_STATRMCA 0x0A8 +#define S6_GMAC_STATRMCA_SIZE 18 +#define S6_GMAC_STATRBCA 0x0AC +#define S6_GMAC_STATRBCA_SIZE 22 +#define S6_GMAC_STATRXCF 0x0B0 +#define S6_GMAC_STATRXCF_SIZE 18 +#define S6_GMAC_STATRXPF 0x0B4 +#define S6_GMAC_STATRXPF_SIZE 12 +#define S6_GMAC_STATRXUO 0x0B8 +#define S6_GMAC_STATRXUO_SIZE 12 +#define S6_GMAC_STATRALN 0x0BC +#define S6_GMAC_STATRALN_SIZE 12 +#define S6_GMAC_STATRFLR 0x0C0 +#define S6_GMAC_STATRFLR_SIZE 16 +#define S6_GMAC_STATRCDE 0x0C4 +#define S6_GMAC_STATRCDE_SIZE 12 +#define S6_GMAC_STATRCSE 0x0C8 +#define S6_GMAC_STATRCSE_SIZE 12 +#define S6_GMAC_STATRUND 0x0CC +#define S6_GMAC_STATRUND_SIZE 12 +#define S6_GMAC_STATROVR 0x0D0 +#define S6_GMAC_STATROVR_SIZE 12 +#define S6_GMAC_STATRFRG 0x0D4 +#define S6_GMAC_STATRFRG_SIZE 12 +#define S6_GMAC_STATRJBR 0x0D8 +#define S6_GMAC_STATRJBR_SIZE 12 +#define S6_GMAC_STATRDRP 0x0DC +#define S6_GMAC_STATRDRP_SIZE 12 +#define S6_GMAC_STATTBYT 0x0E0 +#define S6_GMAC_STATTBYT_SIZE 24 +#define S6_GMAC_STATTPKT 0x0E4 +#define S6_GMAC_STATTPKT_SIZE 18 +#define S6_GMAC_STATTMCA 0x0E8 +#define S6_GMAC_STATTMCA_SIZE 18 +#define S6_GMAC_STATTBCA 0x0EC +#define S6_GMAC_STATTBCA_SIZE 18 +#define S6_GMAC_STATTXPF 0x0F0 +#define S6_GMAC_STATTXPF_SIZE 12 +#define S6_GMAC_STATTDFR 0x0F4 +#define S6_GMAC_STATTDFR_SIZE 12 +#define S6_GMAC_STATTEDF 0x0F8 +#define S6_GMAC_STATTEDF_SIZE 12 +#define S6_GMAC_STATTSCL 0x0FC +#define S6_GMAC_STATTSCL_SIZE 12 +#define S6_GMAC_STATTMCL 0x100 +#define S6_GMAC_STATTMCL_SIZE 12 +#define S6_GMAC_STATTLCL 0x104 +#define S6_GMAC_STATTLCL_SIZE 12 +#define S6_GMAC_STATTXCL 0x108 +#define S6_GMAC_STATTXCL_SIZE 12 +#define S6_GMAC_STATTNCL 0x10C +#define S6_GMAC_STATTNCL_SIZE 13 +#define S6_GMAC_STATTPFH 0x110 +#define S6_GMAC_STATTPFH_SIZE 12 +#define S6_GMAC_STATTDRP 0x114 +#define S6_GMAC_STATTDRP_SIZE 12 +#define S6_GMAC_STATTJBR 0x118 +#define S6_GMAC_STATTJBR_SIZE 12 +#define S6_GMAC_STATTFCS 0x11C +#define S6_GMAC_STATTFCS_SIZE 12 +#define S6_GMAC_STATTXCF 0x120 +#define S6_GMAC_STATTXCF_SIZE 12 +#define S6_GMAC_STATTOVR 0x124 +#define S6_GMAC_STATTOVR_SIZE 12 +#define S6_GMAC_STATTUND 0x128 +#define S6_GMAC_STATTUND_SIZE 12 +#define S6_GMAC_STATTFRG 0x12C +#define S6_GMAC_STATTFRG_SIZE 12 +#define S6_GMAC_STATCARRY(n) (0x130 + 4*(n)) +#define S6_GMAC_STATCARRYMSK(n) (0x138 + 4*(n)) +#define S6_GMAC_STATCARRY1_RDRP 0 +#define S6_GMAC_STATCARRY1_RJBR 1 +#define S6_GMAC_STATCARRY1_RFRG 2 +#define S6_GMAC_STATCARRY1_ROVR 3 +#define S6_GMAC_STATCARRY1_RUND 4 +#define S6_GMAC_STATCARRY1_RCSE 5 +#define S6_GMAC_STATCARRY1_RCDE 6 +#define S6_GMAC_STATCARRY1_RFLR 7 +#define S6_GMAC_STATCARRY1_RALN 8 +#define S6_GMAC_STATCARRY1_RXUO 9 +#define S6_GMAC_STATCARRY1_RXPF 10 +#define S6_GMAC_STATCARRY1_RXCF 11 +#define S6_GMAC_STATCARRY1_RBCA 12 +#define S6_GMAC_STATCARRY1_RMCA 13 +#define S6_GMAC_STATCARRY1_RFCS 14 +#define S6_GMAC_STATCARRY1_RPKT 15 +#define S6_GMAC_STATCARRY1_RBYT 16 +#define S6_GMAC_STATCARRY1_TRMGV 25 +#define S6_GMAC_STATCARRY1_TRMAX 26 +#define S6_GMAC_STATCARRY1_TR1K 27 +#define S6_GMAC_STATCARRY1_TR511 28 +#define S6_GMAC_STATCARRY1_TR255 29 +#define S6_GMAC_STATCARRY1_TR127 30 +#define S6_GMAC_STATCARRY1_TR64 31 +#define S6_GMAC_STATCARRY2_TDRP 0 +#define S6_GMAC_STATCARRY2_TPFH 1 +#define S6_GMAC_STATCARRY2_TNCL 2 +#define S6_GMAC_STATCARRY2_TXCL 3 +#define S6_GMAC_STATCARRY2_TLCL 4 +#define S6_GMAC_STATCARRY2_TMCL 5 +#define S6_GMAC_STATCARRY2_TSCL 6 +#define S6_GMAC_STATCARRY2_TEDF 7 +#define S6_GMAC_STATCARRY2_TDFR 8 +#define S6_GMAC_STATCARRY2_TXPF 9 +#define S6_GMAC_STATCARRY2_TBCA 10 +#define S6_GMAC_STATCARRY2_TMCA 11 +#define S6_GMAC_STATCARRY2_TPKT 12 +#define S6_GMAC_STATCARRY2_TBYT 13 +#define S6_GMAC_STATCARRY2_TFRG 14 +#define S6_GMAC_STATCARRY2_TUND 15 +#define S6_GMAC_STATCARRY2_TOVR 16 +#define S6_GMAC_STATCARRY2_TXCF 17 +#define S6_GMAC_STATCARRY2_TFCS 18 +#define S6_GMAC_STATCARRY2_TJBR 19 + +#define S6_GMAC_HOST_PBLKCTRL 0x140 +#define S6_GMAC_HOST_PBLKCTRL_TXENA 0 +#define S6_GMAC_HOST_PBLKCTRL_RXENA 1 +#define S6_GMAC_HOST_PBLKCTRL_TXSRES 2 +#define S6_GMAC_HOST_PBLKCTRL_RXSRES 3 +#define S6_GMAC_HOST_PBLKCTRL_TXBSIZ 8 +#define S6_GMAC_HOST_PBLKCTRL_RXBSIZ 12 +#define S6_GMAC_HOST_PBLKCTRL_SIZ_16 4 +#define S6_GMAC_HOST_PBLKCTRL_SIZ_32 5 +#define S6_GMAC_HOST_PBLKCTRL_SIZ_64 6 +#define S6_GMAC_HOST_PBLKCTRL_SIZ_128 7 +#define S6_GMAC_HOST_PBLKCTRL_SIZ_MASK 0xF +#define S6_GMAC_HOST_PBLKCTRL_STATENA 16 +#define S6_GMAC_HOST_PBLKCTRL_STATAUTOZ 17 +#define S6_GMAC_HOST_PBLKCTRL_STATCLEAR 18 +#define S6_GMAC_HOST_PBLKCTRL_RGMII 19 +#define S6_GMAC_HOST_INTMASK 0x144 +#define S6_GMAC_HOST_INTSTAT 0x148 +#define S6_GMAC_HOST_INT_TXBURSTOVER 3 +#define S6_GMAC_HOST_INT_TXPREWOVER 4 +#define S6_GMAC_HOST_INT_RXBURSTUNDER 5 +#define S6_GMAC_HOST_INT_RXPOSTRFULL 6 +#define S6_GMAC_HOST_INT_RXPOSTRUNDER 7 +#define S6_GMAC_HOST_RXFIFOHWM 0x14C +#define S6_GMAC_HOST_CTRLFRAMXP 0x150 +#define S6_GMAC_HOST_DSTADDRLO(n) (0x160 + 8*(n)) +#define S6_GMAC_HOST_DSTADDRHI(n) (0x164 + 8*(n)) +#define S6_GMAC_HOST_DSTMASKLO(n) (0x180 + 8*(n)) +#define S6_GMAC_HOST_DSTMASKHI(n) (0x184 + 8*(n)) + +#define S6_GMAC_BURST_PREWR 0x1B0 +#define S6_GMAC_BURST_PREWR_LEN 0 +#define S6_GMAC_BURST_PREWR_LEN_MASK ((1 << 20) - 1) +#define S6_GMAC_BURST_PREWR_CFE 20 +#define S6_GMAC_BURST_PREWR_PPE 21 +#define S6_GMAC_BURST_PREWR_FCS 22 +#define S6_GMAC_BURST_PREWR_PAD 23 +#define S6_GMAC_BURST_POSTRD 0x1D0 +#define S6_GMAC_BURST_POSTRD_LEN 0 +#define S6_GMAC_BURST_POSTRD_LEN_MASK ((1 << 20) - 1) +#define S6_GMAC_BURST_POSTRD_DROP 20 + + +/* data handling */ + +#define S6_NUM_TX_SKB 8 /* must be larger than TX fifo size */ +#define S6_NUM_RX_SKB 16 +#define S6_MAX_FRLEN 1536 + +struct s6gmac { + u32 reg; + u32 tx_dma; + u32 rx_dma; + u32 io; + u8 tx_chan; + u8 rx_chan; + spinlock_t lock; + u8 tx_skb_i, tx_skb_o; + u8 rx_skb_i, rx_skb_o; + struct sk_buff *tx_skb[S6_NUM_TX_SKB]; + struct sk_buff *rx_skb[S6_NUM_RX_SKB]; + unsigned long carry[sizeof(struct net_device_stats) / sizeof(long)]; + unsigned long stats[sizeof(struct net_device_stats) / sizeof(long)]; + struct phy_device *phydev; + struct { + struct mii_bus *bus; + int irq[PHY_MAX_ADDR]; + } mii; + struct { + unsigned int mbit; + u8 giga; + u8 isup; + u8 full; + } link; +}; + +static void s6gmac_rx_fillfifo(struct s6gmac *pd) +{ + struct sk_buff *skb; + while ((((u8)(pd->rx_skb_i - pd->rx_skb_o)) < S6_NUM_RX_SKB) && + (!s6dmac_fifo_full(pd->rx_dma, pd->rx_chan)) && + (skb = dev_alloc_skb(S6_MAX_FRLEN + 2))) { + pd->rx_skb[(pd->rx_skb_i++) % S6_NUM_RX_SKB] = skb; + s6dmac_put_fifo_cache(pd->rx_dma, pd->rx_chan, + pd->io, (u32)skb->data, S6_MAX_FRLEN); + } +} + +static void s6gmac_rx_interrupt(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + u32 pfx; + struct sk_buff *skb; + while (((u8)(pd->rx_skb_i - pd->rx_skb_o)) > + s6dmac_pending_count(pd->rx_dma, pd->rx_chan)) { + skb = pd->rx_skb[(pd->rx_skb_o++) % S6_NUM_RX_SKB]; + pfx = readl(pd->reg + S6_GMAC_BURST_POSTRD); + if (pfx & (1 << S6_GMAC_BURST_POSTRD_DROP)) { + dev_kfree_skb_irq(skb); + } else { + skb_put(skb, (pfx >> S6_GMAC_BURST_POSTRD_LEN) + & S6_GMAC_BURST_POSTRD_LEN_MASK); + skb->protocol = eth_type_trans(skb, dev); + skb->ip_summed = CHECKSUM_UNNECESSARY; + netif_rx(skb); + } + } +} + +static void s6gmac_tx_interrupt(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + while (((u8)(pd->tx_skb_i - pd->tx_skb_o)) > + s6dmac_pending_count(pd->tx_dma, pd->tx_chan)) { + dev_kfree_skb_irq(pd->tx_skb[(pd->tx_skb_o++) % S6_NUM_TX_SKB]); + } + if (!s6dmac_fifo_full(pd->tx_dma, pd->tx_chan)) + netif_wake_queue(dev); +} + +struct s6gmac_statinf { + unsigned reg_size : 4; /* 0: unused */ + unsigned reg_off : 6; + unsigned net_index : 6; +}; + +#define S6_STATS_B (8 * sizeof(u32)) +#define S6_STATS_C(b, r, f) [b] = { \ + BUILD_BUG_ON_ZERO(r##_SIZE < S6_GMAC_STAT_SIZE_MIN) + \ + BUILD_BUG_ON_ZERO((r##_SIZE - (S6_GMAC_STAT_SIZE_MIN - 1)) \ + >= (1<<4)) + \ + r##_SIZE - (S6_GMAC_STAT_SIZE_MIN - 1), \ + BUILD_BUG_ON_ZERO(((unsigned)((r - S6_GMAC_STAT_REGS) / sizeof(u32))) \ + >= ((1<<6)-1)) + \ + (r - S6_GMAC_STAT_REGS) / sizeof(u32), \ + BUILD_BUG_ON_ZERO((offsetof(struct net_device_stats, f)) \ + % sizeof(unsigned long)) + \ + BUILD_BUG_ON_ZERO((((unsigned)(offsetof(struct net_device_stats, f)) \ + / sizeof(unsigned long)) >= (1<<6))) + \ + BUILD_BUG_ON_ZERO((sizeof(((struct net_device_stats *)0)->f) \ + != sizeof(unsigned long))) + \ + (offsetof(struct net_device_stats, f)) / sizeof(unsigned long)}, + +static const struct s6gmac_statinf statinf[2][S6_STATS_B] = { { + S6_STATS_C(S6_GMAC_STATCARRY1_RBYT, S6_GMAC_STATRBYT, rx_bytes) + S6_STATS_C(S6_GMAC_STATCARRY1_RPKT, S6_GMAC_STATRPKT, rx_packets) + S6_STATS_C(S6_GMAC_STATCARRY1_RFCS, S6_GMAC_STATRFCS, rx_crc_errors) + S6_STATS_C(S6_GMAC_STATCARRY1_RMCA, S6_GMAC_STATRMCA, multicast) + S6_STATS_C(S6_GMAC_STATCARRY1_RALN, S6_GMAC_STATRALN, rx_frame_errors) + S6_STATS_C(S6_GMAC_STATCARRY1_RFLR, S6_GMAC_STATRFLR, rx_length_errors) + S6_STATS_C(S6_GMAC_STATCARRY1_RCDE, S6_GMAC_STATRCDE, rx_missed_errors) + S6_STATS_C(S6_GMAC_STATCARRY1_RUND, S6_GMAC_STATRUND, rx_length_errors) + S6_STATS_C(S6_GMAC_STATCARRY1_ROVR, S6_GMAC_STATROVR, rx_length_errors) + S6_STATS_C(S6_GMAC_STATCARRY1_RFRG, S6_GMAC_STATRFRG, rx_crc_errors) + S6_STATS_C(S6_GMAC_STATCARRY1_RJBR, S6_GMAC_STATRJBR, rx_crc_errors) + S6_STATS_C(S6_GMAC_STATCARRY1_RDRP, S6_GMAC_STATRDRP, rx_dropped) +}, { + S6_STATS_C(S6_GMAC_STATCARRY2_TBYT, S6_GMAC_STATTBYT, tx_bytes) + S6_STATS_C(S6_GMAC_STATCARRY2_TPKT, S6_GMAC_STATTPKT, tx_packets) + S6_STATS_C(S6_GMAC_STATCARRY2_TEDF, S6_GMAC_STATTEDF, tx_aborted_errors) + S6_STATS_C(S6_GMAC_STATCARRY2_TXCL, S6_GMAC_STATTXCL, tx_aborted_errors) + S6_STATS_C(S6_GMAC_STATCARRY2_TNCL, S6_GMAC_STATTNCL, collisions) + S6_STATS_C(S6_GMAC_STATCARRY2_TDRP, S6_GMAC_STATTDRP, tx_dropped) + S6_STATS_C(S6_GMAC_STATCARRY2_TJBR, S6_GMAC_STATTJBR, tx_errors) + S6_STATS_C(S6_GMAC_STATCARRY2_TFCS, S6_GMAC_STATTFCS, tx_errors) + S6_STATS_C(S6_GMAC_STATCARRY2_TOVR, S6_GMAC_STATTOVR, tx_errors) + S6_STATS_C(S6_GMAC_STATCARRY2_TUND, S6_GMAC_STATTUND, tx_errors) + S6_STATS_C(S6_GMAC_STATCARRY2_TFRG, S6_GMAC_STATTFRG, tx_errors) +} }; + +static void s6gmac_stats_collect(struct s6gmac *pd, + const struct s6gmac_statinf *inf) +{ + int b; + for (b = 0; b < S6_STATS_B; b++) { + if (inf[b].reg_size) { + pd->stats[inf[b].net_index] += + readl(pd->reg + S6_GMAC_STAT_REGS + + sizeof(u32) * inf[b].reg_off); + } + } +} + +static void s6gmac_stats_carry(struct s6gmac *pd, + const struct s6gmac_statinf *inf, u32 mask) +{ + int b; + while (mask) { + b = fls(mask) - 1; + mask &= ~(1 << b); + pd->carry[inf[b].net_index] += (1 << inf[b].reg_size); + } +} + +static inline u32 s6gmac_stats_pending(struct s6gmac *pd, int carry) +{ + int r = readl(pd->reg + S6_GMAC_STATCARRY(carry)) & + ~readl(pd->reg + S6_GMAC_STATCARRYMSK(carry)); + return r; +} + +static inline void s6gmac_stats_interrupt(struct s6gmac *pd, int carry) +{ + u32 mask; + mask = s6gmac_stats_pending(pd, carry); + if (mask) { + writel(mask, pd->reg + S6_GMAC_STATCARRY(carry)); + s6gmac_stats_carry(pd, &statinf[carry][0], mask); + } +} + +static irqreturn_t s6gmac_interrupt(int irq, void *dev_id) +{ + struct net_device *dev = (struct net_device *)dev_id; + struct s6gmac *pd = netdev_priv(dev); + if (!dev) + return IRQ_NONE; + spin_lock(&pd->lock); + if (s6dmac_termcnt_irq(pd->rx_dma, pd->rx_chan)) + s6gmac_rx_interrupt(dev); + s6gmac_rx_fillfifo(pd); + if (s6dmac_termcnt_irq(pd->tx_dma, pd->tx_chan)) + s6gmac_tx_interrupt(dev); + s6gmac_stats_interrupt(pd, 0); + s6gmac_stats_interrupt(pd, 1); + spin_unlock(&pd->lock); + return IRQ_HANDLED; +} + +static inline void s6gmac_set_dstaddr(struct s6gmac *pd, int n, + u32 addrlo, u32 addrhi, u32 masklo, u32 maskhi) +{ + writel(addrlo, pd->reg + S6_GMAC_HOST_DSTADDRLO(n)); + writel(addrhi, pd->reg + S6_GMAC_HOST_DSTADDRHI(n)); + writel(masklo, pd->reg + S6_GMAC_HOST_DSTMASKLO(n)); + writel(maskhi, pd->reg + S6_GMAC_HOST_DSTMASKHI(n)); +} + +static inline void s6gmac_stop_device(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + writel(0, pd->reg + S6_GMAC_MACCONF1); +} + +static inline void s6gmac_init_device(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + int is_rgmii = !!(pd->phydev->supported + & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half)); +#if 0 + writel(1 << S6_GMAC_MACCONF1_SYNCTX | + 1 << S6_GMAC_MACCONF1_SYNCRX | + 1 << S6_GMAC_MACCONF1_TXFLOWCTRL | + 1 << S6_GMAC_MACCONF1_RXFLOWCTRL | + 1 << S6_GMAC_MACCONF1_RESTXFUNC | + 1 << S6_GMAC_MACCONF1_RESRXFUNC | + 1 << S6_GMAC_MACCONF1_RESTXMACCTRL | + 1 << S6_GMAC_MACCONF1_RESRXMACCTRL, + pd->reg + S6_GMAC_MACCONF1); +#endif + writel(1 << S6_GMAC_MACCONF1_SOFTRES, pd->reg + S6_GMAC_MACCONF1); + udelay(1000); + writel(1 << S6_GMAC_MACCONF1_TXENA | 1 << S6_GMAC_MACCONF1_RXENA, + pd->reg + S6_GMAC_MACCONF1); + writel(1 << S6_GMAC_HOST_PBLKCTRL_TXSRES | + 1 << S6_GMAC_HOST_PBLKCTRL_RXSRES, + pd->reg + S6_GMAC_HOST_PBLKCTRL); + writel(S6_GMAC_HOST_PBLKCTRL_SIZ_128 << S6_GMAC_HOST_PBLKCTRL_TXBSIZ | + S6_GMAC_HOST_PBLKCTRL_SIZ_128 << S6_GMAC_HOST_PBLKCTRL_RXBSIZ | + 1 << S6_GMAC_HOST_PBLKCTRL_STATENA | + 1 << S6_GMAC_HOST_PBLKCTRL_STATCLEAR | + is_rgmii << S6_GMAC_HOST_PBLKCTRL_RGMII, + pd->reg + S6_GMAC_HOST_PBLKCTRL); + writel(1 << S6_GMAC_MACCONF1_TXENA | + 1 << S6_GMAC_MACCONF1_RXENA | + (dev->flags & IFF_LOOPBACK ? 1 : 0) + << S6_GMAC_MACCONF1_LOOPBACK, + pd->reg + S6_GMAC_MACCONF1); + writel(dev->mtu && (dev->mtu < (S6_MAX_FRLEN - ETH_HLEN-ETH_FCS_LEN)) ? + dev->mtu+ETH_HLEN+ETH_FCS_LEN : S6_MAX_FRLEN, + pd->reg + S6_GMAC_MACMAXFRAMELEN); + writel((pd->link.full ? 1 : 0) << S6_GMAC_MACCONF2_FULL | + 1 << S6_GMAC_MACCONF2_PADCRCENA | + 1 << S6_GMAC_MACCONF2_LENGTHFCHK | + (pd->link.giga ? + S6_GMAC_MACCONF2_IFMODE_BYTE : + S6_GMAC_MACCONF2_IFMODE_NIBBLE) + << S6_GMAC_MACCONF2_IFMODE | + 7 << S6_GMAC_MACCONF2_PREAMBLELEN, + pd->reg + S6_GMAC_MACCONF2); + writel(0, pd->reg + S6_GMAC_MACSTATADDR1); + writel(0, pd->reg + S6_GMAC_MACSTATADDR2); + writel(1 << S6_GMAC_FIFOCONF0_WTMENREQ | + 1 << S6_GMAC_FIFOCONF0_SRFENREQ | + 1 << S6_GMAC_FIFOCONF0_FRFENREQ | + 1 << S6_GMAC_FIFOCONF0_STFENREQ | + 1 << S6_GMAC_FIFOCONF0_FTFENREQ, + pd->reg + S6_GMAC_FIFOCONF0); + writel(128 << S6_GMAC_FIFOCONF3_CFGFTTH | + 128 << S6_GMAC_FIFOCONF3_CFGHWMFT, + pd->reg + S6_GMAC_FIFOCONF3); + writel((S6_GMAC_FIFOCONF_RSV_MASK & ~( + 1 << S6_GMAC_FIFOCONF_RSV_RUNT | + 1 << S6_GMAC_FIFOCONF_RSV_CRCERR | + 1 << S6_GMAC_FIFOCONF_RSV_OK | + 1 << S6_GMAC_FIFOCONF_RSV_DRIBBLE | + 1 << S6_GMAC_FIFOCONF_RSV_CTRLFRAME | + 1 << S6_GMAC_FIFOCONF_RSV_PAUSECTRL | + 1 << S6_GMAC_FIFOCONF_RSV_UNOPCODE | + 1 << S6_GMAC_FIFOCONF_RSV_TRUNCATED)) | + 1 << S6_GMAC_FIFOCONF5_DROPLT64 | + pd->link.giga << S6_GMAC_FIFOCONF5_CFGBYTM | + 1 << S6_GMAC_FIFOCONF5_RXDROPSIZE, + pd->reg + S6_GMAC_FIFOCONF5); + writel(1 << S6_GMAC_FIFOCONF_RSV_RUNT | + 1 << S6_GMAC_FIFOCONF_RSV_CRCERR | + 1 << S6_GMAC_FIFOCONF_RSV_DRIBBLE | + 1 << S6_GMAC_FIFOCONF_RSV_CTRLFRAME | + 1 << S6_GMAC_FIFOCONF_RSV_PAUSECTRL | + 1 << S6_GMAC_FIFOCONF_RSV_UNOPCODE | + 1 << S6_GMAC_FIFOCONF_RSV_TRUNCATED, + pd->reg + S6_GMAC_FIFOCONF4); + s6gmac_set_dstaddr(pd, 0, + 0xFFFFFFFF, 0x0000FFFF, 0xFFFFFFFF, 0x0000FFFF); + s6gmac_set_dstaddr(pd, 1, + dev->dev_addr[5] | + dev->dev_addr[4] << 8 | + dev->dev_addr[3] << 16 | + dev->dev_addr[2] << 24, + dev->dev_addr[1] | + dev->dev_addr[0] << 8, + 0xFFFFFFFF, 0x0000FFFF); + s6gmac_set_dstaddr(pd, 2, + 0x00000000, 0x00000100, 0x00000000, 0x00000100); + s6gmac_set_dstaddr(pd, 3, + 0x00000000, 0x00000000, 0x00000000, 0x00000000); + writel(1 << S6_GMAC_HOST_PBLKCTRL_TXENA | + 1 << S6_GMAC_HOST_PBLKCTRL_RXENA | + S6_GMAC_HOST_PBLKCTRL_SIZ_128 << S6_GMAC_HOST_PBLKCTRL_TXBSIZ | + S6_GMAC_HOST_PBLKCTRL_SIZ_128 << S6_GMAC_HOST_PBLKCTRL_RXBSIZ | + 1 << S6_GMAC_HOST_PBLKCTRL_STATENA | + 1 << S6_GMAC_HOST_PBLKCTRL_STATCLEAR | + is_rgmii << S6_GMAC_HOST_PBLKCTRL_RGMII, + pd->reg + S6_GMAC_HOST_PBLKCTRL); +} + +static void s6mii_enable(struct s6gmac *pd) +{ + writel(readl(pd->reg + S6_GMAC_MACCONF1) & + ~(1 << S6_GMAC_MACCONF1_SOFTRES), + pd->reg + S6_GMAC_MACCONF1); + writel((readl(pd->reg + S6_GMAC_MACMIICONF) + & ~(S6_GMAC_MACMIICONF_CSEL_MASK << S6_GMAC_MACMIICONF_CSEL)) + | (S6_GMAC_MACMIICONF_CSEL_DIV168 << S6_GMAC_MACMIICONF_CSEL), + pd->reg + S6_GMAC_MACMIICONF); +} + +static int s6mii_busy(struct s6gmac *pd, int tmo) +{ + while (readl(pd->reg + S6_GMAC_MACMIIINDI)) { + if (--tmo == 0) + return -ETIME; + udelay(64); + } + return 0; +} + +static int s6mii_read(struct mii_bus *bus, int phy_addr, int regnum) +{ + struct s6gmac *pd = bus->priv; + s6mii_enable(pd); + if (s6mii_busy(pd, 256)) + return -ETIME; + writel(phy_addr << S6_GMAC_MACMIIADDR_PHY | + regnum << S6_GMAC_MACMIIADDR_REG, + pd->reg + S6_GMAC_MACMIIADDR); + writel(1 << S6_GMAC_MACMIICMD_READ, pd->reg + S6_GMAC_MACMIICMD); + writel(0, pd->reg + S6_GMAC_MACMIICMD); + if (s6mii_busy(pd, 256)) + return -ETIME; + return (u16)readl(pd->reg + S6_GMAC_MACMIISTAT); +} + +static int s6mii_write(struct mii_bus *bus, int phy_addr, int regnum, u16 value) +{ + struct s6gmac *pd = bus->priv; + s6mii_enable(pd); + if (s6mii_busy(pd, 256)) + return -ETIME; + writel(phy_addr << S6_GMAC_MACMIIADDR_PHY | + regnum << S6_GMAC_MACMIIADDR_REG, + pd->reg + S6_GMAC_MACMIIADDR); + writel(value, pd->reg + S6_GMAC_MACMIICTRL); + if (s6mii_busy(pd, 256)) + return -ETIME; + return 0; +} + +static int s6mii_reset(struct mii_bus *bus) +{ + struct s6gmac *pd = bus->priv; + s6mii_enable(pd); + if (s6mii_busy(pd, PHY_INIT_TIMEOUT)) + return -ETIME; + return 0; +} + +static void s6gmac_set_rgmii_txclock(struct s6gmac *pd) +{ + u32 pllsel = readl(S6_REG_GREG1 + S6_GREG1_PLLSEL); + pllsel &= ~(S6_GREG1_PLLSEL_GMAC_MASK << S6_GREG1_PLLSEL_GMAC); + switch (pd->link.mbit) { + case 10: + pllsel |= S6_GREG1_PLLSEL_GMAC_2500KHZ << S6_GREG1_PLLSEL_GMAC; + break; + case 100: + pllsel |= S6_GREG1_PLLSEL_GMAC_25MHZ << S6_GREG1_PLLSEL_GMAC; + break; + case 1000: + pllsel |= S6_GREG1_PLLSEL_GMAC_125MHZ << S6_GREG1_PLLSEL_GMAC; + break; + default: + return; + } + writel(pllsel, S6_REG_GREG1 + S6_GREG1_PLLSEL); +} + +static inline void s6gmac_linkisup(struct net_device *dev, int isup) +{ + struct s6gmac *pd = netdev_priv(dev); + struct phy_device *phydev = pd->phydev; + + pd->link.full = phydev->duplex; + pd->link.giga = (phydev->speed == 1000); + if (pd->link.mbit != phydev->speed) { + pd->link.mbit = phydev->speed; + s6gmac_set_rgmii_txclock(pd); + } + pd->link.isup = isup; + if (isup) + netif_carrier_on(dev); + phy_print_status(phydev); +} + +static void s6gmac_adjust_link(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + struct phy_device *phydev = pd->phydev; + if (pd->link.isup && + (!phydev->link || + (pd->link.mbit != phydev->speed) || + (pd->link.full != phydev->duplex))) { + pd->link.isup = 0; + netif_tx_disable(dev); + if (!phydev->link) { + netif_carrier_off(dev); + phy_print_status(phydev); + } + } + if (!pd->link.isup && phydev->link) { + if (pd->link.full != phydev->duplex) { + u32 maccfg = readl(pd->reg + S6_GMAC_MACCONF2); + if (phydev->duplex) + maccfg |= 1 << S6_GMAC_MACCONF2_FULL; + else + maccfg &= ~(1 << S6_GMAC_MACCONF2_FULL); + writel(maccfg, pd->reg + S6_GMAC_MACCONF2); + } + + if (pd->link.giga != (phydev->speed == 1000)) { + u32 fifocfg = readl(pd->reg + S6_GMAC_FIFOCONF5); + u32 maccfg = readl(pd->reg + S6_GMAC_MACCONF2); + maccfg &= ~(S6_GMAC_MACCONF2_IFMODE_MASK + << S6_GMAC_MACCONF2_IFMODE); + if (phydev->speed == 1000) { + fifocfg |= 1 << S6_GMAC_FIFOCONF5_CFGBYTM; + maccfg |= S6_GMAC_MACCONF2_IFMODE_BYTE + << S6_GMAC_MACCONF2_IFMODE; + } else { + fifocfg &= ~(1 << S6_GMAC_FIFOCONF5_CFGBYTM); + maccfg |= S6_GMAC_MACCONF2_IFMODE_NIBBLE + << S6_GMAC_MACCONF2_IFMODE; + } + writel(fifocfg, pd->reg + S6_GMAC_FIFOCONF5); + writel(maccfg, pd->reg + S6_GMAC_MACCONF2); + } + + if (!s6dmac_fifo_full(pd->tx_dma, pd->tx_chan)) + netif_wake_queue(dev); + s6gmac_linkisup(dev, 1); + } +} + +static inline int s6gmac_phy_start(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + int i = 0; + struct phy_device *p = NULL; + while ((i < PHY_MAX_ADDR) && (!(p = pd->mii.bus->phy_map[i]))) + i++; + p = phy_connect(dev, dev_name(&p->dev), &s6gmac_adjust_link, 0, + PHY_INTERFACE_MODE_RGMII); + if (IS_ERR(p)) { + printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); + return PTR_ERR(p); + } + p->supported &= PHY_GBIT_FEATURES; + p->advertising = p->supported; + pd->phydev = p; + return 0; +} + +static inline void s6gmac_init_stats(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + u32 mask; + mask = 1 << S6_GMAC_STATCARRY1_RDRP | + 1 << S6_GMAC_STATCARRY1_RJBR | + 1 << S6_GMAC_STATCARRY1_RFRG | + 1 << S6_GMAC_STATCARRY1_ROVR | + 1 << S6_GMAC_STATCARRY1_RUND | + 1 << S6_GMAC_STATCARRY1_RCDE | + 1 << S6_GMAC_STATCARRY1_RFLR | + 1 << S6_GMAC_STATCARRY1_RALN | + 1 << S6_GMAC_STATCARRY1_RMCA | + 1 << S6_GMAC_STATCARRY1_RFCS | + 1 << S6_GMAC_STATCARRY1_RPKT | + 1 << S6_GMAC_STATCARRY1_RBYT; + writel(mask, pd->reg + S6_GMAC_STATCARRY(0)); + writel(~mask, pd->reg + S6_GMAC_STATCARRYMSK(0)); + mask = 1 << S6_GMAC_STATCARRY2_TDRP | + 1 << S6_GMAC_STATCARRY2_TNCL | + 1 << S6_GMAC_STATCARRY2_TXCL | + 1 << S6_GMAC_STATCARRY2_TEDF | + 1 << S6_GMAC_STATCARRY2_TPKT | + 1 << S6_GMAC_STATCARRY2_TBYT | + 1 << S6_GMAC_STATCARRY2_TFRG | + 1 << S6_GMAC_STATCARRY2_TUND | + 1 << S6_GMAC_STATCARRY2_TOVR | + 1 << S6_GMAC_STATCARRY2_TFCS | + 1 << S6_GMAC_STATCARRY2_TJBR; + writel(mask, pd->reg + S6_GMAC_STATCARRY(1)); + writel(~mask, pd->reg + S6_GMAC_STATCARRYMSK(1)); +} + +static inline void s6gmac_init_dmac(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + s6dmac_disable_chan(pd->tx_dma, pd->tx_chan); + s6dmac_disable_chan(pd->rx_dma, pd->rx_chan); + s6dmac_disable_error_irqs(pd->tx_dma, 1 << S6_HIFDMA_GMACTX); + s6dmac_disable_error_irqs(pd->rx_dma, 1 << S6_HIFDMA_GMACRX); +} + +static int s6gmac_tx(struct sk_buff *skb, struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + unsigned long flags; + + spin_lock_irqsave(&pd->lock, flags); + writel(skb->len << S6_GMAC_BURST_PREWR_LEN | + 0 << S6_GMAC_BURST_PREWR_CFE | + 1 << S6_GMAC_BURST_PREWR_PPE | + 1 << S6_GMAC_BURST_PREWR_FCS | + ((skb->len < ETH_ZLEN) ? 1 : 0) << S6_GMAC_BURST_PREWR_PAD, + pd->reg + S6_GMAC_BURST_PREWR); + s6dmac_put_fifo_cache(pd->tx_dma, pd->tx_chan, + (u32)skb->data, pd->io, skb->len); + if (s6dmac_fifo_full(pd->tx_dma, pd->tx_chan)) + netif_stop_queue(dev); + if (((u8)(pd->tx_skb_i - pd->tx_skb_o)) >= S6_NUM_TX_SKB) { + printk(KERN_ERR "GMAC BUG: skb tx ring overflow [%x, %x]\n", + pd->tx_skb_o, pd->tx_skb_i); + BUG(); + } + pd->tx_skb[(pd->tx_skb_i++) % S6_NUM_TX_SKB] = skb; + spin_unlock_irqrestore(&pd->lock, flags); + return 0; +} + +static void s6gmac_tx_timeout(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + unsigned long flags; + spin_lock_irqsave(&pd->lock, flags); + s6gmac_tx_interrupt(dev); + spin_unlock_irqrestore(&pd->lock, flags); +} + +static int s6gmac_open(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + unsigned long flags; + phy_read_status(pd->phydev); + spin_lock_irqsave(&pd->lock, flags); + pd->link.mbit = 0; + s6gmac_linkisup(dev, pd->phydev->link); + s6gmac_init_device(dev); + s6gmac_init_stats(dev); + s6gmac_init_dmac(dev); + s6gmac_rx_fillfifo(pd); + s6dmac_enable_chan(pd->rx_dma, pd->rx_chan, + 2, 1, 0, 1, 0, 0, 0, 7, -1, 2, 0, 1); + s6dmac_enable_chan(pd->tx_dma, pd->tx_chan, + 2, 0, 1, 0, 0, 0, 0, 7, -1, 2, 0, 1); + writel(0 << S6_GMAC_HOST_INT_TXBURSTOVER | + 0 << S6_GMAC_HOST_INT_TXPREWOVER | + 0 << S6_GMAC_HOST_INT_RXBURSTUNDER | + 0 << S6_GMAC_HOST_INT_RXPOSTRFULL | + 0 << S6_GMAC_HOST_INT_RXPOSTRUNDER, + pd->reg + S6_GMAC_HOST_INTMASK); + spin_unlock_irqrestore(&pd->lock, flags); + phy_start(pd->phydev); + netif_start_queue(dev); + return 0; +} + +static int s6gmac_stop(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + unsigned long flags; + netif_stop_queue(dev); + phy_stop(pd->phydev); + spin_lock_irqsave(&pd->lock, flags); + s6gmac_init_dmac(dev); + s6gmac_stop_device(dev); + while (pd->tx_skb_i != pd->tx_skb_o) + dev_kfree_skb(pd->tx_skb[(pd->tx_skb_o++) % S6_NUM_TX_SKB]); + while (pd->rx_skb_i != pd->rx_skb_o) + dev_kfree_skb(pd->rx_skb[(pd->rx_skb_o++) % S6_NUM_RX_SKB]); + spin_unlock_irqrestore(&pd->lock, flags); + return 0; +} + +static struct net_device_stats *s6gmac_stats(struct net_device *dev) +{ + struct s6gmac *pd = netdev_priv(dev); + struct net_device_stats *st = (struct net_device_stats *)&pd->stats; + int i; + do { + unsigned long flags; + spin_lock_irqsave(&pd->lock, flags); + for (i = 0; i < sizeof(pd->stats) / sizeof(unsigned long); i++) + pd->stats[i] = + pd->carry[i] << (S6_GMAC_STAT_SIZE_MIN - 1); + s6gmac_stats_collect(pd, &statinf[0][0]); + s6gmac_stats_collect(pd, &statinf[1][0]); + i = s6gmac_stats_pending(pd, 0) | + s6gmac_stats_pending(pd, 1); + spin_unlock_irqrestore(&pd->lock, flags); + } while (i); + st->rx_errors = st->rx_crc_errors + + st->rx_frame_errors + + st->rx_length_errors + + st->rx_missed_errors; + st->tx_errors += st->tx_aborted_errors; + return st; +} + +static int __devinit s6gmac_probe(struct platform_device *pdev) +{ + struct net_device *dev; + struct s6gmac *pd; + int res; + unsigned long i; + struct mii_bus *mb; + dev = alloc_etherdev(sizeof(*pd)); + if (!dev) { + printk(KERN_ERR DRV_PRMT "etherdev alloc failed, aborting.\n"); + return -ENOMEM; + } + dev->open = s6gmac_open; + dev->stop = s6gmac_stop; + dev->hard_start_xmit = s6gmac_tx; + dev->tx_timeout = s6gmac_tx_timeout; + dev->watchdog_timeo = HZ; + dev->get_stats = s6gmac_stats; + dev->irq = platform_get_irq(pdev, 0); + pd = netdev_priv(dev); + memset(pd, 0, sizeof(*pd)); + spin_lock_init(&pd->lock); + pd->reg = platform_get_resource(pdev, IORESOURCE_MEM, 0)->start; + i = platform_get_resource(pdev, IORESOURCE_DMA, 0)->start; + pd->tx_dma = DMA_MASK_DMAC(i); + pd->tx_chan = DMA_INDEX_CHNL(i); + i = platform_get_resource(pdev, IORESOURCE_DMA, 1)->start; + pd->rx_dma = DMA_MASK_DMAC(i); + pd->rx_chan = DMA_INDEX_CHNL(i); + pd->io = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; + res = request_irq(dev->irq, s6gmac_interrupt, 0, dev->name, dev); + if (res) { + printk(KERN_ERR DRV_PRMT "irq request failed: %d\n", dev->irq); + goto errirq; + } + res = register_netdev(dev); + if (res) { + printk(KERN_ERR DRV_PRMT "error registering device %s\n", + dev->name); + goto errdev; + } + mb = mdiobus_alloc(); + if (!mb) { + printk(KERN_ERR DRV_PRMT "error allocating mii bus\n"); + goto errmii; + } + mb->name = "s6gmac_mii"; + mb->read = s6mii_read; + mb->write = s6mii_write; + mb->reset = s6mii_reset; + mb->priv = pd; + snprintf(mb->id, MII_BUS_ID_SIZE, "0"); + mb->phy_mask = ~(1 << 0); + mb->irq = &pd->mii.irq[0]; + for (i = 0; i < PHY_MAX_ADDR; i++) { + int n = platform_get_irq(pdev, i + 1); + if (n < 0) + n = PHY_POLL; + pd->mii.irq[i] = n; + } + mdiobus_register(mb); + pd->mii.bus = mb; + res = s6gmac_phy_start(dev); + if (res) + return res; + platform_set_drvdata(pdev, dev); + return 0; +errmii: + unregister_netdev(dev); +errdev: + free_irq(dev->irq, dev); +errirq: + free_netdev(dev); + return res; +} + +static int __devexit s6gmac_remove(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + if (dev) { + struct s6gmac *pd = netdev_priv(dev); + mdiobus_unregister(pd->mii.bus); + unregister_netdev(dev); + free_irq(dev->irq, dev); + free_netdev(dev); + platform_set_drvdata(pdev, NULL); + } + return 0; +} + +static struct platform_driver s6gmac_driver = { + .probe = s6gmac_probe, + .remove = __devexit_p(s6gmac_remove), + .driver = { + .name = "s6gmac", + .owner = THIS_MODULE, + }, +}; + +static int __init s6gmac_init(void) +{ + printk(KERN_INFO DRV_PRMT "S6 GMAC ethernet driver\n"); + return platform_driver_register(&s6gmac_driver); +} + + +static void __exit s6gmac_exit(void) +{ + platform_driver_unregister(&s6gmac_driver); +} + +module_init(s6gmac_init); +module_exit(s6gmac_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("S6105 on chip Ethernet driver"); +MODULE_AUTHOR("Oskar Schirmer "); diff --git a/drivers/net/s6gmac.c b/drivers/net/s6gmac.c deleted file mode 100644 index a7ff8ea342b4..000000000000 --- a/drivers/net/s6gmac.c +++ /dev/null @@ -1,1072 +0,0 @@ -/* - * Ethernet driver for S6105 on chip network device - * (c)2008 emlix GmbH http://www.emlix.com - * Authors: Oskar Schirmer - * Daniel Gloeckner - * - * 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. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define DRV_NAME "s6gmac" -#define DRV_PRMT DRV_NAME ": " - - -/* register declarations */ - -#define S6_GMAC_MACCONF1 0x000 -#define S6_GMAC_MACCONF1_TXENA 0 -#define S6_GMAC_MACCONF1_SYNCTX 1 -#define S6_GMAC_MACCONF1_RXENA 2 -#define S6_GMAC_MACCONF1_SYNCRX 3 -#define S6_GMAC_MACCONF1_TXFLOWCTRL 4 -#define S6_GMAC_MACCONF1_RXFLOWCTRL 5 -#define S6_GMAC_MACCONF1_LOOPBACK 8 -#define S6_GMAC_MACCONF1_RESTXFUNC 16 -#define S6_GMAC_MACCONF1_RESRXFUNC 17 -#define S6_GMAC_MACCONF1_RESTXMACCTRL 18 -#define S6_GMAC_MACCONF1_RESRXMACCTRL 19 -#define S6_GMAC_MACCONF1_SIMULRES 30 -#define S6_GMAC_MACCONF1_SOFTRES 31 -#define S6_GMAC_MACCONF2 0x004 -#define S6_GMAC_MACCONF2_FULL 0 -#define S6_GMAC_MACCONF2_CRCENA 1 -#define S6_GMAC_MACCONF2_PADCRCENA 2 -#define S6_GMAC_MACCONF2_LENGTHFCHK 4 -#define S6_GMAC_MACCONF2_HUGEFRAMENA 5 -#define S6_GMAC_MACCONF2_IFMODE 8 -#define S6_GMAC_MACCONF2_IFMODE_NIBBLE 1 -#define S6_GMAC_MACCONF2_IFMODE_BYTE 2 -#define S6_GMAC_MACCONF2_IFMODE_MASK 3 -#define S6_GMAC_MACCONF2_PREAMBLELEN 12 -#define S6_GMAC_MACCONF2_PREAMBLELEN_MASK 0x0F -#define S6_GMAC_MACIPGIFG 0x008 -#define S6_GMAC_MACIPGIFG_B2BINTERPGAP 0 -#define S6_GMAC_MACIPGIFG_B2BINTERPGAP_MASK 0x7F -#define S6_GMAC_MACIPGIFG_MINIFGENFORCE 8 -#define S6_GMAC_MACIPGIFG_B2BINTERPGAP2 16 -#define S6_GMAC_MACIPGIFG_B2BINTERPGAP1 24 -#define S6_GMAC_MACHALFDUPLEX 0x00C -#define S6_GMAC_MACHALFDUPLEX_COLLISWIN 0 -#define S6_GMAC_MACHALFDUPLEX_COLLISWIN_MASK 0x3F -#define S6_GMAC_MACHALFDUPLEX_RETXMAX 12 -#define S6_GMAC_MACHALFDUPLEX_RETXMAX_MASK 0x0F -#define S6_GMAC_MACHALFDUPLEX_EXCESSDEF 16 -#define S6_GMAC_MACHALFDUPLEX_NOBACKOFF 17 -#define S6_GMAC_MACHALFDUPLEX_BPNOBCKOF 18 -#define S6_GMAC_MACHALFDUPLEX_ALTBEBENA 19 -#define S6_GMAC_MACHALFDUPLEX_ALTBEBTRN 20 -#define S6_GMAC_MACHALFDUPLEX_ALTBEBTR_MASK 0x0F -#define S6_GMAC_MACMAXFRAMELEN 0x010 -#define S6_GMAC_MACMIICONF 0x020 -#define S6_GMAC_MACMIICONF_CSEL 0 -#define S6_GMAC_MACMIICONF_CSEL_DIV10 0 -#define S6_GMAC_MACMIICONF_CSEL_DIV12 1 -#define S6_GMAC_MACMIICONF_CSEL_DIV14 2 -#define S6_GMAC_MACMIICONF_CSEL_DIV18 3 -#define S6_GMAC_MACMIICONF_CSEL_DIV24 4 -#define S6_GMAC_MACMIICONF_CSEL_DIV34 5 -#define S6_GMAC_MACMIICONF_CSEL_DIV68 6 -#define S6_GMAC_MACMIICONF_CSEL_DIV168 7 -#define S6_GMAC_MACMIICONF_CSEL_MASK 7 -#define S6_GMAC_MACMIICONF_PREAMBLESUPR 4 -#define S6_GMAC_MACMIICONF_SCANAUTOINCR 5 -#define S6_GMAC_MACMIICMD 0x024 -#define S6_GMAC_MACMIICMD_READ 0 -#define S6_GMAC_MACMIICMD_SCAN 1 -#define S6_GMAC_MACMIIADDR 0x028 -#define S6_GMAC_MACMIIADDR_REG 0 -#define S6_GMAC_MACMIIADDR_REG_MASK 0x1F -#define S6_GMAC_MACMIIADDR_PHY 8 -#define S6_GMAC_MACMIIADDR_PHY_MASK 0x1F -#define S6_GMAC_MACMIICTRL 0x02C -#define S6_GMAC_MACMIISTAT 0x030 -#define S6_GMAC_MACMIIINDI 0x034 -#define S6_GMAC_MACMIIINDI_BUSY 0 -#define S6_GMAC_MACMIIINDI_SCAN 1 -#define S6_GMAC_MACMIIINDI_INVAL 2 -#define S6_GMAC_MACINTERFSTAT 0x03C -#define S6_GMAC_MACINTERFSTAT_LINKFAIL 3 -#define S6_GMAC_MACINTERFSTAT_EXCESSDEF 9 -#define S6_GMAC_MACSTATADDR1 0x040 -#define S6_GMAC_MACSTATADDR2 0x044 - -#define S6_GMAC_FIFOCONF0 0x048 -#define S6_GMAC_FIFOCONF0_HSTRSTWT 0 -#define S6_GMAC_FIFOCONF0_HSTRSTSR 1 -#define S6_GMAC_FIFOCONF0_HSTRSTFR 2 -#define S6_GMAC_FIFOCONF0_HSTRSTST 3 -#define S6_GMAC_FIFOCONF0_HSTRSTFT 4 -#define S6_GMAC_FIFOCONF0_WTMENREQ 8 -#define S6_GMAC_FIFOCONF0_SRFENREQ 9 -#define S6_GMAC_FIFOCONF0_FRFENREQ 10 -#define S6_GMAC_FIFOCONF0_STFENREQ 11 -#define S6_GMAC_FIFOCONF0_FTFENREQ 12 -#define S6_GMAC_FIFOCONF0_WTMENRPLY 16 -#define S6_GMAC_FIFOCONF0_SRFENRPLY 17 -#define S6_GMAC_FIFOCONF0_FRFENRPLY 18 -#define S6_GMAC_FIFOCONF0_STFENRPLY 19 -#define S6_GMAC_FIFOCONF0_FTFENRPLY 20 -#define S6_GMAC_FIFOCONF1 0x04C -#define S6_GMAC_FIFOCONF2 0x050 -#define S6_GMAC_FIFOCONF2_CFGLWM 0 -#define S6_GMAC_FIFOCONF2_CFGHWM 16 -#define S6_GMAC_FIFOCONF3 0x054 -#define S6_GMAC_FIFOCONF3_CFGFTTH 0 -#define S6_GMAC_FIFOCONF3_CFGHWMFT 16 -#define S6_GMAC_FIFOCONF4 0x058 -#define S6_GMAC_FIFOCONF_RSV_PREVDROP 0 -#define S6_GMAC_FIFOCONF_RSV_RUNT 1 -#define S6_GMAC_FIFOCONF_RSV_FALSECAR 2 -#define S6_GMAC_FIFOCONF_RSV_CODEERR 3 -#define S6_GMAC_FIFOCONF_RSV_CRCERR 4 -#define S6_GMAC_FIFOCONF_RSV_LENGTHERR 5 -#define S6_GMAC_FIFOCONF_RSV_LENRANGE 6 -#define S6_GMAC_FIFOCONF_RSV_OK 7 -#define S6_GMAC_FIFOCONF_RSV_MULTICAST 8 -#define S6_GMAC_FIFOCONF_RSV_BROADCAST 9 -#define S6_GMAC_FIFOCONF_RSV_DRIBBLE 10 -#define S6_GMAC_FIFOCONF_RSV_CTRLFRAME 11 -#define S6_GMAC_FIFOCONF_RSV_PAUSECTRL 12 -#define S6_GMAC_FIFOCONF_RSV_UNOPCODE 13 -#define S6_GMAC_FIFOCONF_RSV_VLANTAG 14 -#define S6_GMAC_FIFOCONF_RSV_LONGEVENT 15 -#define S6_GMAC_FIFOCONF_RSV_TRUNCATED 16 -#define S6_GMAC_FIFOCONF_RSV_MASK 0x3FFFF -#define S6_GMAC_FIFOCONF5 0x05C -#define S6_GMAC_FIFOCONF5_DROPLT64 18 -#define S6_GMAC_FIFOCONF5_CFGBYTM 19 -#define S6_GMAC_FIFOCONF5_RXDROPSIZE 20 -#define S6_GMAC_FIFOCONF5_RXDROPSIZE_MASK 0xF - -#define S6_GMAC_STAT_REGS 0x080 -#define S6_GMAC_STAT_SIZE_MIN 12 -#define S6_GMAC_STATTR64 0x080 -#define S6_GMAC_STATTR64_SIZE 18 -#define S6_GMAC_STATTR127 0x084 -#define S6_GMAC_STATTR127_SIZE 18 -#define S6_GMAC_STATTR255 0x088 -#define S6_GMAC_STATTR255_SIZE 18 -#define S6_GMAC_STATTR511 0x08C -#define S6_GMAC_STATTR511_SIZE 18 -#define S6_GMAC_STATTR1K 0x090 -#define S6_GMAC_STATTR1K_SIZE 18 -#define S6_GMAC_STATTRMAX 0x094 -#define S6_GMAC_STATTRMAX_SIZE 18 -#define S6_GMAC_STATTRMGV 0x098 -#define S6_GMAC_STATTRMGV_SIZE 18 -#define S6_GMAC_STATRBYT 0x09C -#define S6_GMAC_STATRBYT_SIZE 24 -#define S6_GMAC_STATRPKT 0x0A0 -#define S6_GMAC_STATRPKT_SIZE 18 -#define S6_GMAC_STATRFCS 0x0A4 -#define S6_GMAC_STATRFCS_SIZE 12 -#define S6_GMAC_STATRMCA 0x0A8 -#define S6_GMAC_STATRMCA_SIZE 18 -#define S6_GMAC_STATRBCA 0x0AC -#define S6_GMAC_STATRBCA_SIZE 22 -#define S6_GMAC_STATRXCF 0x0B0 -#define S6_GMAC_STATRXCF_SIZE 18 -#define S6_GMAC_STATRXPF 0x0B4 -#define S6_GMAC_STATRXPF_SIZE 12 -#define S6_GMAC_STATRXUO 0x0B8 -#define S6_GMAC_STATRXUO_SIZE 12 -#define S6_GMAC_STATRALN 0x0BC -#define S6_GMAC_STATRALN_SIZE 12 -#define S6_GMAC_STATRFLR 0x0C0 -#define S6_GMAC_STATRFLR_SIZE 16 -#define S6_GMAC_STATRCDE 0x0C4 -#define S6_GMAC_STATRCDE_SIZE 12 -#define S6_GMAC_STATRCSE 0x0C8 -#define S6_GMAC_STATRCSE_SIZE 12 -#define S6_GMAC_STATRUND 0x0CC -#define S6_GMAC_STATRUND_SIZE 12 -#define S6_GMAC_STATROVR 0x0D0 -#define S6_GMAC_STATROVR_SIZE 12 -#define S6_GMAC_STATRFRG 0x0D4 -#define S6_GMAC_STATRFRG_SIZE 12 -#define S6_GMAC_STATRJBR 0x0D8 -#define S6_GMAC_STATRJBR_SIZE 12 -#define S6_GMAC_STATRDRP 0x0DC -#define S6_GMAC_STATRDRP_SIZE 12 -#define S6_GMAC_STATTBYT 0x0E0 -#define S6_GMAC_STATTBYT_SIZE 24 -#define S6_GMAC_STATTPKT 0x0E4 -#define S6_GMAC_STATTPKT_SIZE 18 -#define S6_GMAC_STATTMCA 0x0E8 -#define S6_GMAC_STATTMCA_SIZE 18 -#define S6_GMAC_STATTBCA 0x0EC -#define S6_GMAC_STATTBCA_SIZE 18 -#define S6_GMAC_STATTXPF 0x0F0 -#define S6_GMAC_STATTXPF_SIZE 12 -#define S6_GMAC_STATTDFR 0x0F4 -#define S6_GMAC_STATTDFR_SIZE 12 -#define S6_GMAC_STATTEDF 0x0F8 -#define S6_GMAC_STATTEDF_SIZE 12 -#define S6_GMAC_STATTSCL 0x0FC -#define S6_GMAC_STATTSCL_SIZE 12 -#define S6_GMAC_STATTMCL 0x100 -#define S6_GMAC_STATTMCL_SIZE 12 -#define S6_GMAC_STATTLCL 0x104 -#define S6_GMAC_STATTLCL_SIZE 12 -#define S6_GMAC_STATTXCL 0x108 -#define S6_GMAC_STATTXCL_SIZE 12 -#define S6_GMAC_STATTNCL 0x10C -#define S6_GMAC_STATTNCL_SIZE 13 -#define S6_GMAC_STATTPFH 0x110 -#define S6_GMAC_STATTPFH_SIZE 12 -#define S6_GMAC_STATTDRP 0x114 -#define S6_GMAC_STATTDRP_SIZE 12 -#define S6_GMAC_STATTJBR 0x118 -#define S6_GMAC_STATTJBR_SIZE 12 -#define S6_GMAC_STATTFCS 0x11C -#define S6_GMAC_STATTFCS_SIZE 12 -#define S6_GMAC_STATTXCF 0x120 -#define S6_GMAC_STATTXCF_SIZE 12 -#define S6_GMAC_STATTOVR 0x124 -#define S6_GMAC_STATTOVR_SIZE 12 -#define S6_GMAC_STATTUND 0x128 -#define S6_GMAC_STATTUND_SIZE 12 -#define S6_GMAC_STATTFRG 0x12C -#define S6_GMAC_STATTFRG_SIZE 12 -#define S6_GMAC_STATCARRY(n) (0x130 + 4*(n)) -#define S6_GMAC_STATCARRYMSK(n) (0x138 + 4*(n)) -#define S6_GMAC_STATCARRY1_RDRP 0 -#define S6_GMAC_STATCARRY1_RJBR 1 -#define S6_GMAC_STATCARRY1_RFRG 2 -#define S6_GMAC_STATCARRY1_ROVR 3 -#define S6_GMAC_STATCARRY1_RUND 4 -#define S6_GMAC_STATCARRY1_RCSE 5 -#define S6_GMAC_STATCARRY1_RCDE 6 -#define S6_GMAC_STATCARRY1_RFLR 7 -#define S6_GMAC_STATCARRY1_RALN 8 -#define S6_GMAC_STATCARRY1_RXUO 9 -#define S6_GMAC_STATCARRY1_RXPF 10 -#define S6_GMAC_STATCARRY1_RXCF 11 -#define S6_GMAC_STATCARRY1_RBCA 12 -#define S6_GMAC_STATCARRY1_RMCA 13 -#define S6_GMAC_STATCARRY1_RFCS 14 -#define S6_GMAC_STATCARRY1_RPKT 15 -#define S6_GMAC_STATCARRY1_RBYT 16 -#define S6_GMAC_STATCARRY1_TRMGV 25 -#define S6_GMAC_STATCARRY1_TRMAX 26 -#define S6_GMAC_STATCARRY1_TR1K 27 -#define S6_GMAC_STATCARRY1_TR511 28 -#define S6_GMAC_STATCARRY1_TR255 29 -#define S6_GMAC_STATCARRY1_TR127 30 -#define S6_GMAC_STATCARRY1_TR64 31 -#define S6_GMAC_STATCARRY2_TDRP 0 -#define S6_GMAC_STATCARRY2_TPFH 1 -#define S6_GMAC_STATCARRY2_TNCL 2 -#define S6_GMAC_STATCARRY2_TXCL 3 -#define S6_GMAC_STATCARRY2_TLCL 4 -#define S6_GMAC_STATCARRY2_TMCL 5 -#define S6_GMAC_STATCARRY2_TSCL 6 -#define S6_GMAC_STATCARRY2_TEDF 7 -#define S6_GMAC_STATCARRY2_TDFR 8 -#define S6_GMAC_STATCARRY2_TXPF 9 -#define S6_GMAC_STATCARRY2_TBCA 10 -#define S6_GMAC_STATCARRY2_TMCA 11 -#define S6_GMAC_STATCARRY2_TPKT 12 -#define S6_GMAC_STATCARRY2_TBYT 13 -#define S6_GMAC_STATCARRY2_TFRG 14 -#define S6_GMAC_STATCARRY2_TUND 15 -#define S6_GMAC_STATCARRY2_TOVR 16 -#define S6_GMAC_STATCARRY2_TXCF 17 -#define S6_GMAC_STATCARRY2_TFCS 18 -#define S6_GMAC_STATCARRY2_TJBR 19 - -#define S6_GMAC_HOST_PBLKCTRL 0x140 -#define S6_GMAC_HOST_PBLKCTRL_TXENA 0 -#define S6_GMAC_HOST_PBLKCTRL_RXENA 1 -#define S6_GMAC_HOST_PBLKCTRL_TXSRES 2 -#define S6_GMAC_HOST_PBLKCTRL_RXSRES 3 -#define S6_GMAC_HOST_PBLKCTRL_TXBSIZ 8 -#define S6_GMAC_HOST_PBLKCTRL_RXBSIZ 12 -#define S6_GMAC_HOST_PBLKCTRL_SIZ_16 4 -#define S6_GMAC_HOST_PBLKCTRL_SIZ_32 5 -#define S6_GMAC_HOST_PBLKCTRL_SIZ_64 6 -#define S6_GMAC_HOST_PBLKCTRL_SIZ_128 7 -#define S6_GMAC_HOST_PBLKCTRL_SIZ_MASK 0xF -#define S6_GMAC_HOST_PBLKCTRL_STATENA 16 -#define S6_GMAC_HOST_PBLKCTRL_STATAUTOZ 17 -#define S6_GMAC_HOST_PBLKCTRL_STATCLEAR 18 -#define S6_GMAC_HOST_PBLKCTRL_RGMII 19 -#define S6_GMAC_HOST_INTMASK 0x144 -#define S6_GMAC_HOST_INTSTAT 0x148 -#define S6_GMAC_HOST_INT_TXBURSTOVER 3 -#define S6_GMAC_HOST_INT_TXPREWOVER 4 -#define S6_GMAC_HOST_INT_RXBURSTUNDER 5 -#define S6_GMAC_HOST_INT_RXPOSTRFULL 6 -#define S6_GMAC_HOST_INT_RXPOSTRUNDER 7 -#define S6_GMAC_HOST_RXFIFOHWM 0x14C -#define S6_GMAC_HOST_CTRLFRAMXP 0x150 -#define S6_GMAC_HOST_DSTADDRLO(n) (0x160 + 8*(n)) -#define S6_GMAC_HOST_DSTADDRHI(n) (0x164 + 8*(n)) -#define S6_GMAC_HOST_DSTMASKLO(n) (0x180 + 8*(n)) -#define S6_GMAC_HOST_DSTMASKHI(n) (0x184 + 8*(n)) - -#define S6_GMAC_BURST_PREWR 0x1B0 -#define S6_GMAC_BURST_PREWR_LEN 0 -#define S6_GMAC_BURST_PREWR_LEN_MASK ((1 << 20) - 1) -#define S6_GMAC_BURST_PREWR_CFE 20 -#define S6_GMAC_BURST_PREWR_PPE 21 -#define S6_GMAC_BURST_PREWR_FCS 22 -#define S6_GMAC_BURST_PREWR_PAD 23 -#define S6_GMAC_BURST_POSTRD 0x1D0 -#define S6_GMAC_BURST_POSTRD_LEN 0 -#define S6_GMAC_BURST_POSTRD_LEN_MASK ((1 << 20) - 1) -#define S6_GMAC_BURST_POSTRD_DROP 20 - - -/* data handling */ - -#define S6_NUM_TX_SKB 8 /* must be larger than TX fifo size */ -#define S6_NUM_RX_SKB 16 -#define S6_MAX_FRLEN 1536 - -struct s6gmac { - u32 reg; - u32 tx_dma; - u32 rx_dma; - u32 io; - u8 tx_chan; - u8 rx_chan; - spinlock_t lock; - u8 tx_skb_i, tx_skb_o; - u8 rx_skb_i, rx_skb_o; - struct sk_buff *tx_skb[S6_NUM_TX_SKB]; - struct sk_buff *rx_skb[S6_NUM_RX_SKB]; - unsigned long carry[sizeof(struct net_device_stats) / sizeof(long)]; - unsigned long stats[sizeof(struct net_device_stats) / sizeof(long)]; - struct phy_device *phydev; - struct { - struct mii_bus *bus; - int irq[PHY_MAX_ADDR]; - } mii; - struct { - unsigned int mbit; - u8 giga; - u8 isup; - u8 full; - } link; -}; - -static void s6gmac_rx_fillfifo(struct s6gmac *pd) -{ - struct sk_buff *skb; - while ((((u8)(pd->rx_skb_i - pd->rx_skb_o)) < S6_NUM_RX_SKB) && - (!s6dmac_fifo_full(pd->rx_dma, pd->rx_chan)) && - (skb = dev_alloc_skb(S6_MAX_FRLEN + 2))) { - pd->rx_skb[(pd->rx_skb_i++) % S6_NUM_RX_SKB] = skb; - s6dmac_put_fifo_cache(pd->rx_dma, pd->rx_chan, - pd->io, (u32)skb->data, S6_MAX_FRLEN); - } -} - -static void s6gmac_rx_interrupt(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - u32 pfx; - struct sk_buff *skb; - while (((u8)(pd->rx_skb_i - pd->rx_skb_o)) > - s6dmac_pending_count(pd->rx_dma, pd->rx_chan)) { - skb = pd->rx_skb[(pd->rx_skb_o++) % S6_NUM_RX_SKB]; - pfx = readl(pd->reg + S6_GMAC_BURST_POSTRD); - if (pfx & (1 << S6_GMAC_BURST_POSTRD_DROP)) { - dev_kfree_skb_irq(skb); - } else { - skb_put(skb, (pfx >> S6_GMAC_BURST_POSTRD_LEN) - & S6_GMAC_BURST_POSTRD_LEN_MASK); - skb->protocol = eth_type_trans(skb, dev); - skb->ip_summed = CHECKSUM_UNNECESSARY; - netif_rx(skb); - } - } -} - -static void s6gmac_tx_interrupt(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - while (((u8)(pd->tx_skb_i - pd->tx_skb_o)) > - s6dmac_pending_count(pd->tx_dma, pd->tx_chan)) { - dev_kfree_skb_irq(pd->tx_skb[(pd->tx_skb_o++) % S6_NUM_TX_SKB]); - } - if (!s6dmac_fifo_full(pd->tx_dma, pd->tx_chan)) - netif_wake_queue(dev); -} - -struct s6gmac_statinf { - unsigned reg_size : 4; /* 0: unused */ - unsigned reg_off : 6; - unsigned net_index : 6; -}; - -#define S6_STATS_B (8 * sizeof(u32)) -#define S6_STATS_C(b, r, f) [b] = { \ - BUILD_BUG_ON_ZERO(r##_SIZE < S6_GMAC_STAT_SIZE_MIN) + \ - BUILD_BUG_ON_ZERO((r##_SIZE - (S6_GMAC_STAT_SIZE_MIN - 1)) \ - >= (1<<4)) + \ - r##_SIZE - (S6_GMAC_STAT_SIZE_MIN - 1), \ - BUILD_BUG_ON_ZERO(((unsigned)((r - S6_GMAC_STAT_REGS) / sizeof(u32))) \ - >= ((1<<6)-1)) + \ - (r - S6_GMAC_STAT_REGS) / sizeof(u32), \ - BUILD_BUG_ON_ZERO((offsetof(struct net_device_stats, f)) \ - % sizeof(unsigned long)) + \ - BUILD_BUG_ON_ZERO((((unsigned)(offsetof(struct net_device_stats, f)) \ - / sizeof(unsigned long)) >= (1<<6))) + \ - BUILD_BUG_ON_ZERO((sizeof(((struct net_device_stats *)0)->f) \ - != sizeof(unsigned long))) + \ - (offsetof(struct net_device_stats, f)) / sizeof(unsigned long)}, - -static const struct s6gmac_statinf statinf[2][S6_STATS_B] = { { - S6_STATS_C(S6_GMAC_STATCARRY1_RBYT, S6_GMAC_STATRBYT, rx_bytes) - S6_STATS_C(S6_GMAC_STATCARRY1_RPKT, S6_GMAC_STATRPKT, rx_packets) - S6_STATS_C(S6_GMAC_STATCARRY1_RFCS, S6_GMAC_STATRFCS, rx_crc_errors) - S6_STATS_C(S6_GMAC_STATCARRY1_RMCA, S6_GMAC_STATRMCA, multicast) - S6_STATS_C(S6_GMAC_STATCARRY1_RALN, S6_GMAC_STATRALN, rx_frame_errors) - S6_STATS_C(S6_GMAC_STATCARRY1_RFLR, S6_GMAC_STATRFLR, rx_length_errors) - S6_STATS_C(S6_GMAC_STATCARRY1_RCDE, S6_GMAC_STATRCDE, rx_missed_errors) - S6_STATS_C(S6_GMAC_STATCARRY1_RUND, S6_GMAC_STATRUND, rx_length_errors) - S6_STATS_C(S6_GMAC_STATCARRY1_ROVR, S6_GMAC_STATROVR, rx_length_errors) - S6_STATS_C(S6_GMAC_STATCARRY1_RFRG, S6_GMAC_STATRFRG, rx_crc_errors) - S6_STATS_C(S6_GMAC_STATCARRY1_RJBR, S6_GMAC_STATRJBR, rx_crc_errors) - S6_STATS_C(S6_GMAC_STATCARRY1_RDRP, S6_GMAC_STATRDRP, rx_dropped) -}, { - S6_STATS_C(S6_GMAC_STATCARRY2_TBYT, S6_GMAC_STATTBYT, tx_bytes) - S6_STATS_C(S6_GMAC_STATCARRY2_TPKT, S6_GMAC_STATTPKT, tx_packets) - S6_STATS_C(S6_GMAC_STATCARRY2_TEDF, S6_GMAC_STATTEDF, tx_aborted_errors) - S6_STATS_C(S6_GMAC_STATCARRY2_TXCL, S6_GMAC_STATTXCL, tx_aborted_errors) - S6_STATS_C(S6_GMAC_STATCARRY2_TNCL, S6_GMAC_STATTNCL, collisions) - S6_STATS_C(S6_GMAC_STATCARRY2_TDRP, S6_GMAC_STATTDRP, tx_dropped) - S6_STATS_C(S6_GMAC_STATCARRY2_TJBR, S6_GMAC_STATTJBR, tx_errors) - S6_STATS_C(S6_GMAC_STATCARRY2_TFCS, S6_GMAC_STATTFCS, tx_errors) - S6_STATS_C(S6_GMAC_STATCARRY2_TOVR, S6_GMAC_STATTOVR, tx_errors) - S6_STATS_C(S6_GMAC_STATCARRY2_TUND, S6_GMAC_STATTUND, tx_errors) - S6_STATS_C(S6_GMAC_STATCARRY2_TFRG, S6_GMAC_STATTFRG, tx_errors) -} }; - -static void s6gmac_stats_collect(struct s6gmac *pd, - const struct s6gmac_statinf *inf) -{ - int b; - for (b = 0; b < S6_STATS_B; b++) { - if (inf[b].reg_size) { - pd->stats[inf[b].net_index] += - readl(pd->reg + S6_GMAC_STAT_REGS - + sizeof(u32) * inf[b].reg_off); - } - } -} - -static void s6gmac_stats_carry(struct s6gmac *pd, - const struct s6gmac_statinf *inf, u32 mask) -{ - int b; - while (mask) { - b = fls(mask) - 1; - mask &= ~(1 << b); - pd->carry[inf[b].net_index] += (1 << inf[b].reg_size); - } -} - -static inline u32 s6gmac_stats_pending(struct s6gmac *pd, int carry) -{ - int r = readl(pd->reg + S6_GMAC_STATCARRY(carry)) & - ~readl(pd->reg + S6_GMAC_STATCARRYMSK(carry)); - return r; -} - -static inline void s6gmac_stats_interrupt(struct s6gmac *pd, int carry) -{ - u32 mask; - mask = s6gmac_stats_pending(pd, carry); - if (mask) { - writel(mask, pd->reg + S6_GMAC_STATCARRY(carry)); - s6gmac_stats_carry(pd, &statinf[carry][0], mask); - } -} - -static irqreturn_t s6gmac_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = (struct net_device *)dev_id; - struct s6gmac *pd = netdev_priv(dev); - if (!dev) - return IRQ_NONE; - spin_lock(&pd->lock); - if (s6dmac_termcnt_irq(pd->rx_dma, pd->rx_chan)) - s6gmac_rx_interrupt(dev); - s6gmac_rx_fillfifo(pd); - if (s6dmac_termcnt_irq(pd->tx_dma, pd->tx_chan)) - s6gmac_tx_interrupt(dev); - s6gmac_stats_interrupt(pd, 0); - s6gmac_stats_interrupt(pd, 1); - spin_unlock(&pd->lock); - return IRQ_HANDLED; -} - -static inline void s6gmac_set_dstaddr(struct s6gmac *pd, int n, - u32 addrlo, u32 addrhi, u32 masklo, u32 maskhi) -{ - writel(addrlo, pd->reg + S6_GMAC_HOST_DSTADDRLO(n)); - writel(addrhi, pd->reg + S6_GMAC_HOST_DSTADDRHI(n)); - writel(masklo, pd->reg + S6_GMAC_HOST_DSTMASKLO(n)); - writel(maskhi, pd->reg + S6_GMAC_HOST_DSTMASKHI(n)); -} - -static inline void s6gmac_stop_device(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - writel(0, pd->reg + S6_GMAC_MACCONF1); -} - -static inline void s6gmac_init_device(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - int is_rgmii = !!(pd->phydev->supported - & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half)); -#if 0 - writel(1 << S6_GMAC_MACCONF1_SYNCTX | - 1 << S6_GMAC_MACCONF1_SYNCRX | - 1 << S6_GMAC_MACCONF1_TXFLOWCTRL | - 1 << S6_GMAC_MACCONF1_RXFLOWCTRL | - 1 << S6_GMAC_MACCONF1_RESTXFUNC | - 1 << S6_GMAC_MACCONF1_RESRXFUNC | - 1 << S6_GMAC_MACCONF1_RESTXMACCTRL | - 1 << S6_GMAC_MACCONF1_RESRXMACCTRL, - pd->reg + S6_GMAC_MACCONF1); -#endif - writel(1 << S6_GMAC_MACCONF1_SOFTRES, pd->reg + S6_GMAC_MACCONF1); - udelay(1000); - writel(1 << S6_GMAC_MACCONF1_TXENA | 1 << S6_GMAC_MACCONF1_RXENA, - pd->reg + S6_GMAC_MACCONF1); - writel(1 << S6_GMAC_HOST_PBLKCTRL_TXSRES | - 1 << S6_GMAC_HOST_PBLKCTRL_RXSRES, - pd->reg + S6_GMAC_HOST_PBLKCTRL); - writel(S6_GMAC_HOST_PBLKCTRL_SIZ_128 << S6_GMAC_HOST_PBLKCTRL_TXBSIZ | - S6_GMAC_HOST_PBLKCTRL_SIZ_128 << S6_GMAC_HOST_PBLKCTRL_RXBSIZ | - 1 << S6_GMAC_HOST_PBLKCTRL_STATENA | - 1 << S6_GMAC_HOST_PBLKCTRL_STATCLEAR | - is_rgmii << S6_GMAC_HOST_PBLKCTRL_RGMII, - pd->reg + S6_GMAC_HOST_PBLKCTRL); - writel(1 << S6_GMAC_MACCONF1_TXENA | - 1 << S6_GMAC_MACCONF1_RXENA | - (dev->flags & IFF_LOOPBACK ? 1 : 0) - << S6_GMAC_MACCONF1_LOOPBACK, - pd->reg + S6_GMAC_MACCONF1); - writel(dev->mtu && (dev->mtu < (S6_MAX_FRLEN - ETH_HLEN-ETH_FCS_LEN)) ? - dev->mtu+ETH_HLEN+ETH_FCS_LEN : S6_MAX_FRLEN, - pd->reg + S6_GMAC_MACMAXFRAMELEN); - writel((pd->link.full ? 1 : 0) << S6_GMAC_MACCONF2_FULL | - 1 << S6_GMAC_MACCONF2_PADCRCENA | - 1 << S6_GMAC_MACCONF2_LENGTHFCHK | - (pd->link.giga ? - S6_GMAC_MACCONF2_IFMODE_BYTE : - S6_GMAC_MACCONF2_IFMODE_NIBBLE) - << S6_GMAC_MACCONF2_IFMODE | - 7 << S6_GMAC_MACCONF2_PREAMBLELEN, - pd->reg + S6_GMAC_MACCONF2); - writel(0, pd->reg + S6_GMAC_MACSTATADDR1); - writel(0, pd->reg + S6_GMAC_MACSTATADDR2); - writel(1 << S6_GMAC_FIFOCONF0_WTMENREQ | - 1 << S6_GMAC_FIFOCONF0_SRFENREQ | - 1 << S6_GMAC_FIFOCONF0_FRFENREQ | - 1 << S6_GMAC_FIFOCONF0_STFENREQ | - 1 << S6_GMAC_FIFOCONF0_FTFENREQ, - pd->reg + S6_GMAC_FIFOCONF0); - writel(128 << S6_GMAC_FIFOCONF3_CFGFTTH | - 128 << S6_GMAC_FIFOCONF3_CFGHWMFT, - pd->reg + S6_GMAC_FIFOCONF3); - writel((S6_GMAC_FIFOCONF_RSV_MASK & ~( - 1 << S6_GMAC_FIFOCONF_RSV_RUNT | - 1 << S6_GMAC_FIFOCONF_RSV_CRCERR | - 1 << S6_GMAC_FIFOCONF_RSV_OK | - 1 << S6_GMAC_FIFOCONF_RSV_DRIBBLE | - 1 << S6_GMAC_FIFOCONF_RSV_CTRLFRAME | - 1 << S6_GMAC_FIFOCONF_RSV_PAUSECTRL | - 1 << S6_GMAC_FIFOCONF_RSV_UNOPCODE | - 1 << S6_GMAC_FIFOCONF_RSV_TRUNCATED)) | - 1 << S6_GMAC_FIFOCONF5_DROPLT64 | - pd->link.giga << S6_GMAC_FIFOCONF5_CFGBYTM | - 1 << S6_GMAC_FIFOCONF5_RXDROPSIZE, - pd->reg + S6_GMAC_FIFOCONF5); - writel(1 << S6_GMAC_FIFOCONF_RSV_RUNT | - 1 << S6_GMAC_FIFOCONF_RSV_CRCERR | - 1 << S6_GMAC_FIFOCONF_RSV_DRIBBLE | - 1 << S6_GMAC_FIFOCONF_RSV_CTRLFRAME | - 1 << S6_GMAC_FIFOCONF_RSV_PAUSECTRL | - 1 << S6_GMAC_FIFOCONF_RSV_UNOPCODE | - 1 << S6_GMAC_FIFOCONF_RSV_TRUNCATED, - pd->reg + S6_GMAC_FIFOCONF4); - s6gmac_set_dstaddr(pd, 0, - 0xFFFFFFFF, 0x0000FFFF, 0xFFFFFFFF, 0x0000FFFF); - s6gmac_set_dstaddr(pd, 1, - dev->dev_addr[5] | - dev->dev_addr[4] << 8 | - dev->dev_addr[3] << 16 | - dev->dev_addr[2] << 24, - dev->dev_addr[1] | - dev->dev_addr[0] << 8, - 0xFFFFFFFF, 0x0000FFFF); - s6gmac_set_dstaddr(pd, 2, - 0x00000000, 0x00000100, 0x00000000, 0x00000100); - s6gmac_set_dstaddr(pd, 3, - 0x00000000, 0x00000000, 0x00000000, 0x00000000); - writel(1 << S6_GMAC_HOST_PBLKCTRL_TXENA | - 1 << S6_GMAC_HOST_PBLKCTRL_RXENA | - S6_GMAC_HOST_PBLKCTRL_SIZ_128 << S6_GMAC_HOST_PBLKCTRL_TXBSIZ | - S6_GMAC_HOST_PBLKCTRL_SIZ_128 << S6_GMAC_HOST_PBLKCTRL_RXBSIZ | - 1 << S6_GMAC_HOST_PBLKCTRL_STATENA | - 1 << S6_GMAC_HOST_PBLKCTRL_STATCLEAR | - is_rgmii << S6_GMAC_HOST_PBLKCTRL_RGMII, - pd->reg + S6_GMAC_HOST_PBLKCTRL); -} - -static void s6mii_enable(struct s6gmac *pd) -{ - writel(readl(pd->reg + S6_GMAC_MACCONF1) & - ~(1 << S6_GMAC_MACCONF1_SOFTRES), - pd->reg + S6_GMAC_MACCONF1); - writel((readl(pd->reg + S6_GMAC_MACMIICONF) - & ~(S6_GMAC_MACMIICONF_CSEL_MASK << S6_GMAC_MACMIICONF_CSEL)) - | (S6_GMAC_MACMIICONF_CSEL_DIV168 << S6_GMAC_MACMIICONF_CSEL), - pd->reg + S6_GMAC_MACMIICONF); -} - -static int s6mii_busy(struct s6gmac *pd, int tmo) -{ - while (readl(pd->reg + S6_GMAC_MACMIIINDI)) { - if (--tmo == 0) - return -ETIME; - udelay(64); - } - return 0; -} - -static int s6mii_read(struct mii_bus *bus, int phy_addr, int regnum) -{ - struct s6gmac *pd = bus->priv; - s6mii_enable(pd); - if (s6mii_busy(pd, 256)) - return -ETIME; - writel(phy_addr << S6_GMAC_MACMIIADDR_PHY | - regnum << S6_GMAC_MACMIIADDR_REG, - pd->reg + S6_GMAC_MACMIIADDR); - writel(1 << S6_GMAC_MACMIICMD_READ, pd->reg + S6_GMAC_MACMIICMD); - writel(0, pd->reg + S6_GMAC_MACMIICMD); - if (s6mii_busy(pd, 256)) - return -ETIME; - return (u16)readl(pd->reg + S6_GMAC_MACMIISTAT); -} - -static int s6mii_write(struct mii_bus *bus, int phy_addr, int regnum, u16 value) -{ - struct s6gmac *pd = bus->priv; - s6mii_enable(pd); - if (s6mii_busy(pd, 256)) - return -ETIME; - writel(phy_addr << S6_GMAC_MACMIIADDR_PHY | - regnum << S6_GMAC_MACMIIADDR_REG, - pd->reg + S6_GMAC_MACMIIADDR); - writel(value, pd->reg + S6_GMAC_MACMIICTRL); - if (s6mii_busy(pd, 256)) - return -ETIME; - return 0; -} - -static int s6mii_reset(struct mii_bus *bus) -{ - struct s6gmac *pd = bus->priv; - s6mii_enable(pd); - if (s6mii_busy(pd, PHY_INIT_TIMEOUT)) - return -ETIME; - return 0; -} - -static void s6gmac_set_rgmii_txclock(struct s6gmac *pd) -{ - u32 pllsel = readl(S6_REG_GREG1 + S6_GREG1_PLLSEL); - pllsel &= ~(S6_GREG1_PLLSEL_GMAC_MASK << S6_GREG1_PLLSEL_GMAC); - switch (pd->link.mbit) { - case 10: - pllsel |= S6_GREG1_PLLSEL_GMAC_2500KHZ << S6_GREG1_PLLSEL_GMAC; - break; - case 100: - pllsel |= S6_GREG1_PLLSEL_GMAC_25MHZ << S6_GREG1_PLLSEL_GMAC; - break; - case 1000: - pllsel |= S6_GREG1_PLLSEL_GMAC_125MHZ << S6_GREG1_PLLSEL_GMAC; - break; - default: - return; - } - writel(pllsel, S6_REG_GREG1 + S6_GREG1_PLLSEL); -} - -static inline void s6gmac_linkisup(struct net_device *dev, int isup) -{ - struct s6gmac *pd = netdev_priv(dev); - struct phy_device *phydev = pd->phydev; - - pd->link.full = phydev->duplex; - pd->link.giga = (phydev->speed == 1000); - if (pd->link.mbit != phydev->speed) { - pd->link.mbit = phydev->speed; - s6gmac_set_rgmii_txclock(pd); - } - pd->link.isup = isup; - if (isup) - netif_carrier_on(dev); - phy_print_status(phydev); -} - -static void s6gmac_adjust_link(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - struct phy_device *phydev = pd->phydev; - if (pd->link.isup && - (!phydev->link || - (pd->link.mbit != phydev->speed) || - (pd->link.full != phydev->duplex))) { - pd->link.isup = 0; - netif_tx_disable(dev); - if (!phydev->link) { - netif_carrier_off(dev); - phy_print_status(phydev); - } - } - if (!pd->link.isup && phydev->link) { - if (pd->link.full != phydev->duplex) { - u32 maccfg = readl(pd->reg + S6_GMAC_MACCONF2); - if (phydev->duplex) - maccfg |= 1 << S6_GMAC_MACCONF2_FULL; - else - maccfg &= ~(1 << S6_GMAC_MACCONF2_FULL); - writel(maccfg, pd->reg + S6_GMAC_MACCONF2); - } - - if (pd->link.giga != (phydev->speed == 1000)) { - u32 fifocfg = readl(pd->reg + S6_GMAC_FIFOCONF5); - u32 maccfg = readl(pd->reg + S6_GMAC_MACCONF2); - maccfg &= ~(S6_GMAC_MACCONF2_IFMODE_MASK - << S6_GMAC_MACCONF2_IFMODE); - if (phydev->speed == 1000) { - fifocfg |= 1 << S6_GMAC_FIFOCONF5_CFGBYTM; - maccfg |= S6_GMAC_MACCONF2_IFMODE_BYTE - << S6_GMAC_MACCONF2_IFMODE; - } else { - fifocfg &= ~(1 << S6_GMAC_FIFOCONF5_CFGBYTM); - maccfg |= S6_GMAC_MACCONF2_IFMODE_NIBBLE - << S6_GMAC_MACCONF2_IFMODE; - } - writel(fifocfg, pd->reg + S6_GMAC_FIFOCONF5); - writel(maccfg, pd->reg + S6_GMAC_MACCONF2); - } - - if (!s6dmac_fifo_full(pd->tx_dma, pd->tx_chan)) - netif_wake_queue(dev); - s6gmac_linkisup(dev, 1); - } -} - -static inline int s6gmac_phy_start(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - int i = 0; - struct phy_device *p = NULL; - while ((i < PHY_MAX_ADDR) && (!(p = pd->mii.bus->phy_map[i]))) - i++; - p = phy_connect(dev, dev_name(&p->dev), &s6gmac_adjust_link, 0, - PHY_INTERFACE_MODE_RGMII); - if (IS_ERR(p)) { - printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); - return PTR_ERR(p); - } - p->supported &= PHY_GBIT_FEATURES; - p->advertising = p->supported; - pd->phydev = p; - return 0; -} - -static inline void s6gmac_init_stats(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - u32 mask; - mask = 1 << S6_GMAC_STATCARRY1_RDRP | - 1 << S6_GMAC_STATCARRY1_RJBR | - 1 << S6_GMAC_STATCARRY1_RFRG | - 1 << S6_GMAC_STATCARRY1_ROVR | - 1 << S6_GMAC_STATCARRY1_RUND | - 1 << S6_GMAC_STATCARRY1_RCDE | - 1 << S6_GMAC_STATCARRY1_RFLR | - 1 << S6_GMAC_STATCARRY1_RALN | - 1 << S6_GMAC_STATCARRY1_RMCA | - 1 << S6_GMAC_STATCARRY1_RFCS | - 1 << S6_GMAC_STATCARRY1_RPKT | - 1 << S6_GMAC_STATCARRY1_RBYT; - writel(mask, pd->reg + S6_GMAC_STATCARRY(0)); - writel(~mask, pd->reg + S6_GMAC_STATCARRYMSK(0)); - mask = 1 << S6_GMAC_STATCARRY2_TDRP | - 1 << S6_GMAC_STATCARRY2_TNCL | - 1 << S6_GMAC_STATCARRY2_TXCL | - 1 << S6_GMAC_STATCARRY2_TEDF | - 1 << S6_GMAC_STATCARRY2_TPKT | - 1 << S6_GMAC_STATCARRY2_TBYT | - 1 << S6_GMAC_STATCARRY2_TFRG | - 1 << S6_GMAC_STATCARRY2_TUND | - 1 << S6_GMAC_STATCARRY2_TOVR | - 1 << S6_GMAC_STATCARRY2_TFCS | - 1 << S6_GMAC_STATCARRY2_TJBR; - writel(mask, pd->reg + S6_GMAC_STATCARRY(1)); - writel(~mask, pd->reg + S6_GMAC_STATCARRYMSK(1)); -} - -static inline void s6gmac_init_dmac(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - s6dmac_disable_chan(pd->tx_dma, pd->tx_chan); - s6dmac_disable_chan(pd->rx_dma, pd->rx_chan); - s6dmac_disable_error_irqs(pd->tx_dma, 1 << S6_HIFDMA_GMACTX); - s6dmac_disable_error_irqs(pd->rx_dma, 1 << S6_HIFDMA_GMACRX); -} - -static int s6gmac_tx(struct sk_buff *skb, struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - unsigned long flags; - - spin_lock_irqsave(&pd->lock, flags); - writel(skb->len << S6_GMAC_BURST_PREWR_LEN | - 0 << S6_GMAC_BURST_PREWR_CFE | - 1 << S6_GMAC_BURST_PREWR_PPE | - 1 << S6_GMAC_BURST_PREWR_FCS | - ((skb->len < ETH_ZLEN) ? 1 : 0) << S6_GMAC_BURST_PREWR_PAD, - pd->reg + S6_GMAC_BURST_PREWR); - s6dmac_put_fifo_cache(pd->tx_dma, pd->tx_chan, - (u32)skb->data, pd->io, skb->len); - if (s6dmac_fifo_full(pd->tx_dma, pd->tx_chan)) - netif_stop_queue(dev); - if (((u8)(pd->tx_skb_i - pd->tx_skb_o)) >= S6_NUM_TX_SKB) { - printk(KERN_ERR "GMAC BUG: skb tx ring overflow [%x, %x]\n", - pd->tx_skb_o, pd->tx_skb_i); - BUG(); - } - pd->tx_skb[(pd->tx_skb_i++) % S6_NUM_TX_SKB] = skb; - spin_unlock_irqrestore(&pd->lock, flags); - return 0; -} - -static void s6gmac_tx_timeout(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - unsigned long flags; - spin_lock_irqsave(&pd->lock, flags); - s6gmac_tx_interrupt(dev); - spin_unlock_irqrestore(&pd->lock, flags); -} - -static int s6gmac_open(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - unsigned long flags; - phy_read_status(pd->phydev); - spin_lock_irqsave(&pd->lock, flags); - pd->link.mbit = 0; - s6gmac_linkisup(dev, pd->phydev->link); - s6gmac_init_device(dev); - s6gmac_init_stats(dev); - s6gmac_init_dmac(dev); - s6gmac_rx_fillfifo(pd); - s6dmac_enable_chan(pd->rx_dma, pd->rx_chan, - 2, 1, 0, 1, 0, 0, 0, 7, -1, 2, 0, 1); - s6dmac_enable_chan(pd->tx_dma, pd->tx_chan, - 2, 0, 1, 0, 0, 0, 0, 7, -1, 2, 0, 1); - writel(0 << S6_GMAC_HOST_INT_TXBURSTOVER | - 0 << S6_GMAC_HOST_INT_TXPREWOVER | - 0 << S6_GMAC_HOST_INT_RXBURSTUNDER | - 0 << S6_GMAC_HOST_INT_RXPOSTRFULL | - 0 << S6_GMAC_HOST_INT_RXPOSTRUNDER, - pd->reg + S6_GMAC_HOST_INTMASK); - spin_unlock_irqrestore(&pd->lock, flags); - phy_start(pd->phydev); - netif_start_queue(dev); - return 0; -} - -static int s6gmac_stop(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - unsigned long flags; - netif_stop_queue(dev); - phy_stop(pd->phydev); - spin_lock_irqsave(&pd->lock, flags); - s6gmac_init_dmac(dev); - s6gmac_stop_device(dev); - while (pd->tx_skb_i != pd->tx_skb_o) - dev_kfree_skb(pd->tx_skb[(pd->tx_skb_o++) % S6_NUM_TX_SKB]); - while (pd->rx_skb_i != pd->rx_skb_o) - dev_kfree_skb(pd->rx_skb[(pd->rx_skb_o++) % S6_NUM_RX_SKB]); - spin_unlock_irqrestore(&pd->lock, flags); - return 0; -} - -static struct net_device_stats *s6gmac_stats(struct net_device *dev) -{ - struct s6gmac *pd = netdev_priv(dev); - struct net_device_stats *st = (struct net_device_stats *)&pd->stats; - int i; - do { - unsigned long flags; - spin_lock_irqsave(&pd->lock, flags); - for (i = 0; i < sizeof(pd->stats) / sizeof(unsigned long); i++) - pd->stats[i] = - pd->carry[i] << (S6_GMAC_STAT_SIZE_MIN - 1); - s6gmac_stats_collect(pd, &statinf[0][0]); - s6gmac_stats_collect(pd, &statinf[1][0]); - i = s6gmac_stats_pending(pd, 0) | - s6gmac_stats_pending(pd, 1); - spin_unlock_irqrestore(&pd->lock, flags); - } while (i); - st->rx_errors = st->rx_crc_errors + - st->rx_frame_errors + - st->rx_length_errors + - st->rx_missed_errors; - st->tx_errors += st->tx_aborted_errors; - return st; -} - -static int __devinit s6gmac_probe(struct platform_device *pdev) -{ - struct net_device *dev; - struct s6gmac *pd; - int res; - unsigned long i; - struct mii_bus *mb; - dev = alloc_etherdev(sizeof(*pd)); - if (!dev) { - printk(KERN_ERR DRV_PRMT "etherdev alloc failed, aborting.\n"); - return -ENOMEM; - } - dev->open = s6gmac_open; - dev->stop = s6gmac_stop; - dev->hard_start_xmit = s6gmac_tx; - dev->tx_timeout = s6gmac_tx_timeout; - dev->watchdog_timeo = HZ; - dev->get_stats = s6gmac_stats; - dev->irq = platform_get_irq(pdev, 0); - pd = netdev_priv(dev); - memset(pd, 0, sizeof(*pd)); - spin_lock_init(&pd->lock); - pd->reg = platform_get_resource(pdev, IORESOURCE_MEM, 0)->start; - i = platform_get_resource(pdev, IORESOURCE_DMA, 0)->start; - pd->tx_dma = DMA_MASK_DMAC(i); - pd->tx_chan = DMA_INDEX_CHNL(i); - i = platform_get_resource(pdev, IORESOURCE_DMA, 1)->start; - pd->rx_dma = DMA_MASK_DMAC(i); - pd->rx_chan = DMA_INDEX_CHNL(i); - pd->io = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; - res = request_irq(dev->irq, s6gmac_interrupt, 0, dev->name, dev); - if (res) { - printk(KERN_ERR DRV_PRMT "irq request failed: %d\n", dev->irq); - goto errirq; - } - res = register_netdev(dev); - if (res) { - printk(KERN_ERR DRV_PRMT "error registering device %s\n", - dev->name); - goto errdev; - } - mb = mdiobus_alloc(); - if (!mb) { - printk(KERN_ERR DRV_PRMT "error allocating mii bus\n"); - goto errmii; - } - mb->name = "s6gmac_mii"; - mb->read = s6mii_read; - mb->write = s6mii_write; - mb->reset = s6mii_reset; - mb->priv = pd; - snprintf(mb->id, MII_BUS_ID_SIZE, "0"); - mb->phy_mask = ~(1 << 0); - mb->irq = &pd->mii.irq[0]; - for (i = 0; i < PHY_MAX_ADDR; i++) { - int n = platform_get_irq(pdev, i + 1); - if (n < 0) - n = PHY_POLL; - pd->mii.irq[i] = n; - } - mdiobus_register(mb); - pd->mii.bus = mb; - res = s6gmac_phy_start(dev); - if (res) - return res; - platform_set_drvdata(pdev, dev); - return 0; -errmii: - unregister_netdev(dev); -errdev: - free_irq(dev->irq, dev); -errirq: - free_netdev(dev); - return res; -} - -static int __devexit s6gmac_remove(struct platform_device *pdev) -{ - struct net_device *dev = platform_get_drvdata(pdev); - if (dev) { - struct s6gmac *pd = netdev_priv(dev); - mdiobus_unregister(pd->mii.bus); - unregister_netdev(dev); - free_irq(dev->irq, dev); - free_netdev(dev); - platform_set_drvdata(pdev, NULL); - } - return 0; -} - -static struct platform_driver s6gmac_driver = { - .probe = s6gmac_probe, - .remove = __devexit_p(s6gmac_remove), - .driver = { - .name = "s6gmac", - .owner = THIS_MODULE, - }, -}; - -static int __init s6gmac_init(void) -{ - printk(KERN_INFO DRV_PRMT "S6 GMAC ethernet driver\n"); - return platform_driver_register(&s6gmac_driver); -} - - -static void __exit s6gmac_exit(void) -{ - platform_driver_unregister(&s6gmac_driver); -} - -module_init(s6gmac_init); -module_exit(s6gmac_exit); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("S6105 on chip Ethernet driver"); -MODULE_AUTHOR("Oskar Schirmer "); -- cgit v1.2.3