diff options
Diffstat (limited to 'drivers/net/ethernet/xscale/ixp2000/pm3386.c')
| -rw-r--r-- | drivers/net/ethernet/xscale/ixp2000/pm3386.c | 351 |
1 files changed, 0 insertions, 351 deletions
diff --git a/drivers/net/ethernet/xscale/ixp2000/pm3386.c b/drivers/net/ethernet/xscale/ixp2000/pm3386.c deleted file mode 100644 index e08d3f9863b8..000000000000 --- a/drivers/net/ethernet/xscale/ixp2000/pm3386.c +++ /dev/null @@ -1,351 +0,0 @@ -/* - * Helper functions for the PM3386s 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 <linux/netdevice.h> -#include <asm/io.h> -#include "pm3386.h" - -/* - * Read from register 'reg' of PM3386 device 'pm'. - */ -static u16 pm3386_reg_read(int pm, int reg) -{ - void *_reg; - u16 value; - - _reg = (void *)ENP2611_PM3386_0_VIRT_BASE; - if (pm == 1) - _reg = (void *)ENP2611_PM3386_1_VIRT_BASE; - - value = *((volatile u16 *)(_reg + (reg << 1))); - -// printk(KERN_INFO "pm3386_reg_read(%d, %.3x) = %.8x\n", pm, reg, value); - - return value; -} - -/* - * Write to register 'reg' of PM3386 device 'pm', and perform - * a readback from the identification register. - */ -static void pm3386_reg_write(int pm, int reg, u16 value) -{ - void *_reg; - u16 dummy; - -// printk(KERN_INFO "pm3386_reg_write(%d, %.3x, %.8x)\n", pm, reg, value); - - _reg = (void *)ENP2611_PM3386_0_VIRT_BASE; - if (pm == 1) - _reg = (void *)ENP2611_PM3386_1_VIRT_BASE; - - *((volatile u16 *)(_reg + (reg << 1))) = value; - - dummy = *((volatile u16 *)_reg); - __asm__ __volatile__("mov %0, %0" : "+r" (dummy)); -} - -/* - * Read from port 'port' register 'reg', where the registers - * for the different ports are 'spacing' registers apart. - */ -static u16 pm3386_port_reg_read(int port, int _reg, int spacing) -{ - int reg; - - reg = _reg; - if (port & 1) - reg += spacing; - - return pm3386_reg_read(port >> 1, reg); -} - -/* - * Write to port 'port' register 'reg', where the registers - * for the different ports are 'spacing' registers apart. - */ -static void pm3386_port_reg_write(int port, int _reg, int spacing, u16 value) -{ - int reg; - - reg = _reg; - if (port & 1) - reg += spacing; - - pm3386_reg_write(port >> 1, reg, value); -} - -int pm3386_secondary_present(void) -{ - return pm3386_reg_read(1, 0) == 0x3386; -} - -void pm3386_reset(void) -{ - u8 mac[3][6]; - int secondary; - - secondary = pm3386_secondary_present(); - - /* Save programmed MAC addresses. */ - pm3386_get_mac(0, mac[0]); - pm3386_get_mac(1, mac[1]); - if (secondary) - pm3386_get_mac(2, mac[2]); - - /* Assert analog and digital reset. */ - pm3386_reg_write(0, 0x002, 0x0060); - if (secondary) - pm3386_reg_write(1, 0x002, 0x0060); - mdelay(1); - - /* Deassert analog reset. */ - pm3386_reg_write(0, 0x002, 0x0062); - if (secondary) - pm3386_reg_write(1, 0x002, 0x0062); - mdelay(10); - - /* Deassert digital reset. */ - pm3386_reg_write(0, 0x002, 0x0063); - if (secondary) - pm3386_reg_write(1, 0x002, 0x0063); - mdelay(10); - - /* Restore programmed MAC addresses. */ - pm3386_set_mac(0, mac[0]); - pm3386_set_mac(1, mac[1]); - if (secondary) - pm3386_set_mac(2, mac[2]); - - /* Disable carrier on all ports. */ - pm3386_set_carrier(0, 0); - pm3386_set_carrier(1, 0); - if (secondary) - pm3386_set_carrier(2, 0); -} - -static u16 swaph(u16 x) -{ - return ((x << 8) | (x >> 8)) & 0xffff; -} - -int pm3386_port_count(void) -{ - return 2 + pm3386_secondary_present(); -} - -void pm3386_init_port(int port) -{ - int pm = port >> 1; - - /* - * Work around ENP2611 bootloader programming MAC address - * in reverse. - */ - if (pm3386_port_reg_read(port, 0x30a, 0x100) == 0x0000 && - (pm3386_port_reg_read(port, 0x309, 0x100) & 0xff00) == 0x5000) { - u16 temp[3]; - - temp[0] = pm3386_port_reg_read(port, 0x308, 0x100); - temp[1] = pm3386_port_reg_read(port, 0x309, 0x100); - temp[2] = pm3386_port_reg_read(port, 0x30a, 0x100); - pm3386_port_reg_write(port, 0x308, 0x100, swaph(temp[2])); - pm3386_port_reg_write(port, 0x309, 0x100, swaph(temp[1])); - pm3386_port_reg_write(port, 0x30a, 0x100, swaph(temp[0])); - } - - /* - * Initialise narrowbanding mode. See application note 2010486 - * for more information. (@@@ We also need to issue a reset - * when ROOL or DOOL are detected.) - */ - pm3386_port_reg_write(port, 0x708, 0x10, 0xd055); - udelay(500); - pm3386_port_reg_write(port, 0x708, 0x10, 0x5055); - - /* - * SPI-3 ingress block. Set 64 bytes SPI-3 burst size - * towards SPI-3 bridge. - */ - pm3386_port_reg_write(port, 0x122, 0x20, 0x0002); - - /* - * Enable ingress protocol checking, and soft reset the - * SPI-3 ingress block. - */ - pm3386_reg_write(pm, 0x103, 0x0003); - while (!(pm3386_reg_read(pm, 0x103) & 0x80)) - ; - - /* - * SPI-3 egress block. Gather 12288 bytes of the current - * packet in the TX fifo before initiating transmit on the - * SERDES interface. (Prevents TX underflows.) - */ - pm3386_port_reg_write(port, 0x221, 0x20, 0x0007); - - /* - * Enforce odd parity from the SPI-3 bridge, and soft reset - * the SPI-3 egress block. - */ - pm3386_reg_write(pm, 0x203, 0x000d & ~(4 << (port & 1))); - while ((pm3386_reg_read(pm, 0x203) & 0x000c) != 0x000c) - ; - - /* - * EGMAC block. Set this channels to reject long preambles, - * not send or transmit PAUSE frames, enable preamble checking, - * disable frame length checking, enable FCS appending, enable - * TX frame padding. - */ - pm3386_port_reg_write(port, 0x302, 0x100, 0x0113); - - /* - * Soft reset the EGMAC block. - */ - pm3386_port_reg_write(port, 0x301, 0x100, 0x8000); - pm3386_port_reg_write(port, 0x301, 0x100, 0x0000); - - /* - * Auto-sense autonegotiation status. - */ - pm3386_port_reg_write(port, 0x306, 0x100, 0x0100); - - /* - * Allow reception of jumbo frames. - */ - pm3386_port_reg_write(port, 0x310, 0x100, 9018); - - /* - * Allow transmission of jumbo frames. - */ - pm3386_port_reg_write(port, 0x336, 0x100, 9018); - - /* @@@ Should set 0x337/0x437 (RX forwarding threshold.) */ - - /* - * Set autonegotiation parameters to 'no PAUSE, full duplex.' - */ - pm3386_port_reg_write(port, 0x31c, 0x100, 0x0020); - - /* - * Enable and restart autonegotiation. - */ - pm3386_port_reg_write(port, 0x318, 0x100, 0x0003); - pm3386_port_reg_write(port, 0x318, 0x100, 0x0002); -} - -void pm3386_get_mac(int port, u8 *mac) -{ - u16 temp; - - temp = pm3386_port_reg_read(port, 0x308, 0x100); - mac[0] = temp & 0xff; - mac[1] = (temp >> 8) & 0xff; - - temp = pm3386_port_reg_read(port, 0x309, 0x100); - mac[2] = temp & 0xff; - mac[3] = (temp >> 8) & 0xff; - - temp = pm3386_port_reg_read(port, 0x30a, 0x100); - mac[4] = temp & 0xff; - mac[5] = (temp >> 8) & 0xff; -} - -void pm3386_set_mac(int port, u8 *mac) -{ - pm3386_port_reg_write(port, 0x308, 0x100, (mac[1] << 8) | mac[0]); - pm3386_port_reg_write(port, 0x309, 0x100, (mac[3] << 8) | mac[2]); - pm3386_port_reg_write(port, 0x30a, 0x100, (mac[5] << 8) | mac[4]); -} - -static u32 pm3386_get_stat(int port, u16 base) -{ - u32 value; - - value = pm3386_port_reg_read(port, base, 0x100); - value |= pm3386_port_reg_read(port, base + 1, 0x100) << 16; - - return value; -} - -void pm3386_get_stats(int port, struct net_device_stats *stats) -{ - /* - * Snapshot statistics counters. - */ - pm3386_port_reg_write(port, 0x500, 0x100, 0x0001); - while (pm3386_port_reg_read(port, 0x500, 0x100) & 0x0001) - ; - - memset(stats, 0, sizeof(*stats)); - - stats->rx_packets = pm3386_get_stat(port, 0x510); - stats->tx_packets = pm3386_get_stat(port, 0x590); - stats->rx_bytes = pm3386_get_stat(port, 0x514); - stats->tx_bytes = pm3386_get_stat(port, 0x594); - /* @@@ Add other stats. */ -} - -void pm3386_set_carrier(int port, int state) -{ - pm3386_port_reg_write(port, 0x703, 0x10, state ? 0x1001 : 0x0000); -} - -int pm3386_is_link_up(int port) -{ - u16 temp; - - temp = pm3386_port_reg_read(port, 0x31a, 0x100); - temp = pm3386_port_reg_read(port, 0x31a, 0x100); - - return !!(temp & 0x0002); -} - -void pm3386_enable_rx(int port) -{ - u16 temp; - - temp = pm3386_port_reg_read(port, 0x303, 0x100); - temp |= 0x1000; - pm3386_port_reg_write(port, 0x303, 0x100, temp); -} - -void pm3386_disable_rx(int port) -{ - u16 temp; - - temp = pm3386_port_reg_read(port, 0x303, 0x100); - temp &= 0xefff; - pm3386_port_reg_write(port, 0x303, 0x100, temp); -} - -void pm3386_enable_tx(int port) -{ - u16 temp; - - temp = pm3386_port_reg_read(port, 0x303, 0x100); - temp |= 0x4000; - pm3386_port_reg_write(port, 0x303, 0x100, temp); -} - -void pm3386_disable_tx(int port) -{ - u16 temp; - - temp = pm3386_port_reg_read(port, 0x303, 0x100); - temp &= 0xbfff; - pm3386_port_reg_write(port, 0x303, 0x100, temp); -} - -MODULE_LICENSE("GPL"); |