diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-25 13:25:22 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-25 13:25:22 +0200 |
commit | 8a9ea3237e7eb5c25f09e429ad242ae5a3d5ea22 (patch) | |
tree | a0a63398a9983667d52cbbbf4e2405b4f22b1d83 /drivers/net/ethernet/xscale/ixp2000/caleb.c | |
parent | 1be025d3cb40cd295123af2c394f7229ef9b30ca (diff) | |
parent | 8b3408f8ee994973869d8ba32c5bf482bc4ddca4 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1745 commits)
dp83640: free packet queues on remove
dp83640: use proper function to free transmit time stamping packets
ipv6: Do not use routes from locally generated RAs
|PATCH net-next] tg3: add tx_dropped counter
be2net: don't create multiple RX/TX rings in multi channel mode
be2net: don't create multiple TXQs in BE2
be2net: refactor VF setup/teardown code into be_vf_setup/clear()
be2net: add vlan/rx-mode/flow-control config to be_setup()
net_sched: cls_flow: use skb_header_pointer()
ipv4: avoid useless call of the function check_peer_pmtu
TCP: remove TCP_DEBUG
net: Fix driver name for mdio-gpio.c
ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT
rtnetlink: Add missing manual netlink notification in dev_change_net_namespaces
ipv4: fix ipsec forward performance regression
jme: fix irq storm after suspend/resume
route: fix ICMP redirect validation
net: hold sock reference while processing tx timestamps
tcp: md5: add more const attributes
Add ethtool -g support to virtio_net
...
Fix up conflicts in:
- drivers/net/Kconfig:
The split-up generated a trivial conflict with removal of a
stale reference to Documentation/networking/net-modules.txt.
Remove it from the new location instead.
- fs/sysfs/dir.c:
Fairly nasty conflicts with the sysfs rb-tree usage, conflicting
with Eric Biederman's changes for tagged directories.
Diffstat (limited to 'drivers/net/ethernet/xscale/ixp2000/caleb.c')
-rw-r--r-- | drivers/net/ethernet/xscale/ixp2000/caleb.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/drivers/net/ethernet/xscale/ixp2000/caleb.c b/drivers/net/ethernet/xscale/ixp2000/caleb.c new file mode 100644 index 00000000000..7dea5b95012 --- /dev/null +++ b/drivers/net/ethernet/xscale/ixp2000/caleb.c @@ -0,0 +1,136 @@ +/* + * Helper functions for the SPI-3 bridge FPGA on the Radisys ENP2611 + * Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org> + * Dedicated to Marija Kulikova. + * + * 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 <linux/module.h> +#include <linux/delay.h> +#include <asm/io.h> +#include "caleb.h" + +#define CALEB_IDLO 0x00 +#define CALEB_IDHI 0x01 +#define CALEB_RID 0x02 +#define CALEB_RESET 0x03 +#define CALEB_INTREN0 0x04 +#define CALEB_INTREN1 0x05 +#define CALEB_INTRSTAT0 0x06 +#define CALEB_INTRSTAT1 0x07 +#define CALEB_PORTEN 0x08 +#define CALEB_BURST 0x09 +#define CALEB_PORTPAUS 0x0A +#define CALEB_PORTPAUSD 0x0B +#define CALEB_PHY0RX 0x10 +#define CALEB_PHY1RX 0x11 +#define CALEB_PHY0TX 0x12 +#define CALEB_PHY1TX 0x13 +#define CALEB_IXPRX_HI_CNTR 0x15 +#define CALEB_PHY0RX_HI_CNTR 0x16 +#define CALEB_PHY1RX_HI_CNTR 0x17 +#define CALEB_IXPRX_CNTR 0x18 +#define CALEB_PHY0RX_CNTR 0x19 +#define CALEB_PHY1RX_CNTR 0x1A +#define CALEB_IXPTX_CNTR 0x1B +#define CALEB_PHY0TX_CNTR 0x1C +#define CALEB_PHY1TX_CNTR 0x1D +#define CALEB_DEBUG0 0x1E +#define CALEB_DEBUG1 0x1F + + +static u8 caleb_reg_read(int reg) +{ + u8 value; + + value = *((volatile u8 *)(ENP2611_CALEB_VIRT_BASE + reg)); + +// printk(KERN_INFO "caleb_reg_read(%d) = %.2x\n", reg, value); + + return value; +} + +static void caleb_reg_write(int reg, u8 value) +{ + u8 dummy; + +// printk(KERN_INFO "caleb_reg_write(%d, %.2x)\n", reg, value); + + *((volatile u8 *)(ENP2611_CALEB_VIRT_BASE + reg)) = value; + + dummy = *((volatile u8 *)ENP2611_CALEB_VIRT_BASE); + __asm__ __volatile__("mov %0, %0" : "+r" (dummy)); +} + + +void caleb_reset(void) +{ + /* + * Perform a chip reset. + */ + caleb_reg_write(CALEB_RESET, 0x02); + udelay(1); + + /* + * Enable all interrupt sources. This is needed to get + * meaningful results out of the status bits (register 6 + * and 7.) + */ + caleb_reg_write(CALEB_INTREN0, 0xff); + caleb_reg_write(CALEB_INTREN1, 0x07); + + /* + * Set RX and TX FIFO thresholds to 1.5kb. + */ + caleb_reg_write(CALEB_PHY0RX, 0x11); + caleb_reg_write(CALEB_PHY1RX, 0x11); + caleb_reg_write(CALEB_PHY0TX, 0x11); + caleb_reg_write(CALEB_PHY1TX, 0x11); + + /* + * Program SPI-3 burst size. + */ + caleb_reg_write(CALEB_BURST, 0); // 64-byte RBUF mpackets +// caleb_reg_write(CALEB_BURST, 1); // 128-byte RBUF mpackets +// caleb_reg_write(CALEB_BURST, 2); // 256-byte RBUF mpackets +} + +void caleb_enable_rx(int port) +{ + u8 temp; + + temp = caleb_reg_read(CALEB_PORTEN); + temp |= 1 << port; + caleb_reg_write(CALEB_PORTEN, temp); +} + +void caleb_disable_rx(int port) +{ + u8 temp; + + temp = caleb_reg_read(CALEB_PORTEN); + temp &= ~(1 << port); + caleb_reg_write(CALEB_PORTEN, temp); +} + +void caleb_enable_tx(int port) +{ + u8 temp; + + temp = caleb_reg_read(CALEB_PORTEN); + temp |= 1 << (port + 4); + caleb_reg_write(CALEB_PORTEN, temp); +} + +void caleb_disable_tx(int port) +{ + u8 temp; + + temp = caleb_reg_read(CALEB_PORTEN); + temp &= ~(1 << (port + 4)); + caleb_reg_write(CALEB_PORTEN, temp); +} |