blob: 92a1b644958cf7050e96a66ba5afa62f2ba456ad [file] [log] [blame]
Thomas Chouc960b132010-04-20 12:49:52 +08001/*
2 * Altera 10/100/1000 triple speed ethernet mac driver
3 *
4 * Copyright (C) 2008 Altera Corporation.
5 * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
Thomas Chouc960b132010-04-20 12:49:52 +080011#include <common.h>
Thomas Chou96fa1e42015-10-22 15:29:11 +080012#include <dm.h>
13#include <errno.h>
14#include <fdt_support.h>
15#include <memalign.h>
16#include <miiphy.h>
Thomas Chouc960b132010-04-20 12:49:52 +080017#include <net.h>
Thomas Chouc960b132010-04-20 12:49:52 +080018#include <asm/cache.h>
19#include <asm/dma-mapping.h>
Thomas Chou96fa1e42015-10-22 15:29:11 +080020#include <asm/io.h>
Thomas Chouc960b132010-04-20 12:49:52 +080021#include "altera_tse.h"
22
Thomas Chou96fa1e42015-10-22 15:29:11 +080023DECLARE_GLOBAL_DATA_PTR;
Thomas Chouc960b132010-04-20 12:49:52 +080024
Thomas Chou96fa1e42015-10-22 15:29:11 +080025static inline void alt_sgdma_construct_descriptor(
26 struct alt_sgdma_descriptor *desc,
27 struct alt_sgdma_descriptor *next,
28 void *read_addr,
29 void *write_addr,
Thomas Chou2cd0a522015-11-06 09:36:26 +080030 u16 length_or_eop,
Thomas Chouc960b132010-04-20 12:49:52 +080031 int generate_eop,
32 int read_fixed,
Thomas Chou96fa1e42015-10-22 15:29:11 +080033 int write_fixed_or_sop)
Thomas Chouc960b132010-04-20 12:49:52 +080034{
Thomas Chou2cd0a522015-11-06 09:36:26 +080035 u8 val;
Thomas Chou96fa1e42015-10-22 15:29:11 +080036
Thomas Chouc960b132010-04-20 12:49:52 +080037 /*
38 * Mark the "next" descriptor as "not" owned by hardware. This prevents
Thomas Chou96fa1e42015-10-22 15:29:11 +080039 * The SGDMA controller from continuing to process the chain.
Thomas Chouc960b132010-04-20 12:49:52 +080040 */
Thomas Chou96fa1e42015-10-22 15:29:11 +080041 next->descriptor_control = next->descriptor_control &
42 ~ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK;
Thomas Chouc960b132010-04-20 12:49:52 +080043
Thomas Chou96fa1e42015-10-22 15:29:11 +080044 memset(desc, 0, sizeof(struct alt_sgdma_descriptor));
45 desc->source = virt_to_phys(read_addr);
46 desc->destination = virt_to_phys(write_addr);
47 desc->next = virt_to_phys(next);
Thomas Chouc960b132010-04-20 12:49:52 +080048 desc->bytes_to_transfer = length_or_eop;
Thomas Chouc960b132010-04-20 12:49:52 +080049
50 /*
51 * Set the descriptor control block as follows:
52 * - Set "owned by hardware" bit
53 * - Optionally set "generate EOP" bit
54 * - Optionally set the "read from fixed address" bit
55 * - Optionally set the "write to fixed address bit (which serves
56 * serves as a "generate SOP" control bit in memory-to-stream mode).
57 * - Set the 4-bit atlantic channel, if specified
58 *
59 * Note this step is performed after all other descriptor information
60 * has been filled out so that, if the controller already happens to be
61 * pointing at this descriptor, it will not run (via the "owned by
62 * hardware" bit) until all other descriptor has been set up.
63 */
Thomas Chou96fa1e42015-10-22 15:29:11 +080064 val = ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK;
65 if (generate_eop)
66 val |= ALT_SGDMA_DESCRIPTOR_CONTROL_GENERATE_EOP_MSK;
67 if (read_fixed)
68 val |= ALT_SGDMA_DESCRIPTOR_CONTROL_READ_FIXED_ADDRESS_MSK;
69 if (write_fixed_or_sop)
70 val |= ALT_SGDMA_DESCRIPTOR_CONTROL_WRITE_FIXED_ADDRESS_MSK;
71 desc->descriptor_control = val;
Thomas Chouc960b132010-04-20 12:49:52 +080072}
73
Thomas Chou96fa1e42015-10-22 15:29:11 +080074static int alt_sgdma_wait_transfer(struct alt_sgdma_registers *regs)
Thomas Chouc960b132010-04-20 12:49:52 +080075{
Thomas Chou96fa1e42015-10-22 15:29:11 +080076 int status;
77 ulong ctime;
Thomas Chouc960b132010-04-20 12:49:52 +080078
79 /* Wait for the descriptor (chain) to complete */
Thomas Chou96fa1e42015-10-22 15:29:11 +080080 ctime = get_timer(0);
81 while (1) {
82 status = readl(&regs->status);
83 if (!(status & ALT_SGDMA_STATUS_BUSY_MSK))
Thomas Chouc960b132010-04-20 12:49:52 +080084 break;
Thomas Chou96fa1e42015-10-22 15:29:11 +080085 if (get_timer(ctime) > ALT_TSE_SGDMA_BUSY_TIMEOUT) {
86 status = -ETIMEDOUT;
87 debug("sgdma timeout\n");
88 break;
89 }
Thomas Chouc960b132010-04-20 12:49:52 +080090 }
91
Thomas Chou96fa1e42015-10-22 15:29:11 +080092 /* Clear Run */
93 writel(0, &regs->control);
94 /* Clear status */
95 writel(0xff, &regs->status);
Thomas Chouc960b132010-04-20 12:49:52 +080096
Thomas Chou96fa1e42015-10-22 15:29:11 +080097 return status;
98}
Joachim Foerster337aff52011-10-25 22:39:54 +000099
Thomas Chou96fa1e42015-10-22 15:29:11 +0800100static int alt_sgdma_start_transfer(struct alt_sgdma_registers *regs,
101 struct alt_sgdma_descriptor *desc)
102{
Thomas Chou2cd0a522015-11-06 09:36:26 +0800103 u32 val;
Thomas Chouc960b132010-04-20 12:49:52 +0800104
105 /* Point the controller at the descriptor */
Thomas Chou96fa1e42015-10-22 15:29:11 +0800106 writel(virt_to_phys(desc), &regs->next_descriptor_pointer);
Thomas Chouc960b132010-04-20 12:49:52 +0800107
108 /*
109 * Set up SGDMA controller to:
110 * - Disable interrupt generation
111 * - Run once a valid descriptor is written to controller
112 * - Stop on an error with any particular descriptor
113 */
Thomas Chou96fa1e42015-10-22 15:29:11 +0800114 val = ALT_SGDMA_CONTROL_RUN_MSK | ALT_SGDMA_CONTROL_STOP_DMA_ER_MSK;
115 writel(val, &regs->control);
Thomas Chouc960b132010-04-20 12:49:52 +0800116
Thomas Chouc960b132010-04-20 12:49:52 +0800117 return 0;
118}
119
Thomas Chou96fa1e42015-10-22 15:29:11 +0800120static void tse_adjust_link(struct altera_tse_priv *priv,
121 struct phy_device *phydev)
Thomas Chouc960b132010-04-20 12:49:52 +0800122{
Thomas Chou96fa1e42015-10-22 15:29:11 +0800123 struct alt_tse_mac *mac_dev = priv->mac_dev;
Thomas Chou2cd0a522015-11-06 09:36:26 +0800124 u32 refvar;
Thomas Chouc960b132010-04-20 12:49:52 +0800125
Thomas Chou96fa1e42015-10-22 15:29:11 +0800126 if (!phydev->link) {
127 debug("%s: No link.\n", phydev->dev->name);
128 return;
129 }
Thomas Chouc960b132010-04-20 12:49:52 +0800130
Thomas Chou96fa1e42015-10-22 15:29:11 +0800131 refvar = readl(&mac_dev->command_config);
132
133 if (phydev->duplex)
Thomas Chouc960b132010-04-20 12:49:52 +0800134 refvar |= ALTERA_TSE_CMD_HD_ENA_MSK;
135 else
136 refvar &= ~ALTERA_TSE_CMD_HD_ENA_MSK;
137
Thomas Chou96fa1e42015-10-22 15:29:11 +0800138 switch (phydev->speed) {
Thomas Chouc960b132010-04-20 12:49:52 +0800139 case 1000:
140 refvar |= ALTERA_TSE_CMD_ETH_SPEED_MSK;
141 refvar &= ~ALTERA_TSE_CMD_ENA_10_MSK;
142 break;
143 case 100:
144 refvar &= ~ALTERA_TSE_CMD_ETH_SPEED_MSK;
145 refvar &= ~ALTERA_TSE_CMD_ENA_10_MSK;
146 break;
147 case 10:
148 refvar &= ~ALTERA_TSE_CMD_ETH_SPEED_MSK;
149 refvar |= ALTERA_TSE_CMD_ENA_10_MSK;
150 break;
151 }
Thomas Chou96fa1e42015-10-22 15:29:11 +0800152 writel(refvar, &mac_dev->command_config);
Thomas Chouc960b132010-04-20 12:49:52 +0800153}
154
Thomas Chou38fa4ac2015-11-09 11:02:15 +0800155static int altera_tse_send_sgdma(struct udevice *dev, void *packet, int length)
Thomas Chouc960b132010-04-20 12:49:52 +0800156{
Thomas Chou96fa1e42015-10-22 15:29:11 +0800157 struct altera_tse_priv *priv = dev_get_priv(dev);
158 struct alt_sgdma_descriptor *tx_desc = priv->tx_desc;
Thomas Chouc960b132010-04-20 12:49:52 +0800159
Thomas Chou96fa1e42015-10-22 15:29:11 +0800160 alt_sgdma_construct_descriptor(
161 tx_desc,
162 tx_desc + 1,
163 packet, /* read addr */
164 NULL, /* write addr */
Thomas Chouc960b132010-04-20 12:49:52 +0800165 length, /* length or EOP ,will change for each tx */
Thomas Chou96fa1e42015-10-22 15:29:11 +0800166 1, /* gen eop */
167 0, /* read fixed */
168 1 /* write fixed or sop */
Thomas Chouc960b132010-04-20 12:49:52 +0800169 );
Thomas Chouc960b132010-04-20 12:49:52 +0800170
171 /* send the packet */
Thomas Chou96fa1e42015-10-22 15:29:11 +0800172 alt_sgdma_start_transfer(priv->sgdma_tx, tx_desc);
173 alt_sgdma_wait_transfer(priv->sgdma_tx);
174 debug("sent %d bytes\n", tx_desc->actual_bytes_transferred);
175
176 return tx_desc->actual_bytes_transferred;
Thomas Chouc960b132010-04-20 12:49:52 +0800177}
178
Thomas Chou38fa4ac2015-11-09 11:02:15 +0800179static int altera_tse_recv_sgdma(struct udevice *dev, int flags,
180 uchar **packetp)
Thomas Chouc960b132010-04-20 12:49:52 +0800181{
Thomas Chou96fa1e42015-10-22 15:29:11 +0800182 struct altera_tse_priv *priv = dev_get_priv(dev);
183 struct alt_sgdma_descriptor *rx_desc = priv->rx_desc;
184 int packet_length;
Thomas Chouc960b132010-04-20 12:49:52 +0800185
Thomas Chou96fa1e42015-10-22 15:29:11 +0800186 if (rx_desc->descriptor_status &
Thomas Chouc960b132010-04-20 12:49:52 +0800187 ALT_SGDMA_DESCRIPTOR_STATUS_TERMINATED_BY_EOP_MSK) {
Thomas Chou577662f2015-11-09 08:00:00 +0800188 alt_sgdma_wait_transfer(priv->sgdma_rx);
Thomas Chouc960b132010-04-20 12:49:52 +0800189 packet_length = rx_desc->actual_bytes_transferred;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800190 debug("recv %d bytes\n", packet_length);
191 *packetp = priv->rx_buf;
Joachim Foerster70d52f92011-10-17 05:24:46 +0000192
193 return packet_length;
Thomas Chouc960b132010-04-20 12:49:52 +0800194 }
195
Thomas Chou96fa1e42015-10-22 15:29:11 +0800196 return -EAGAIN;
Thomas Chouc960b132010-04-20 12:49:52 +0800197}
198
Thomas Chou38fa4ac2015-11-09 11:02:15 +0800199static int altera_tse_free_pkt_sgdma(struct udevice *dev, uchar *packet,
200 int length)
Thomas Chouc960b132010-04-20 12:49:52 +0800201{
Thomas Chou96fa1e42015-10-22 15:29:11 +0800202 struct altera_tse_priv *priv = dev_get_priv(dev);
203 struct alt_sgdma_descriptor *rx_desc = priv->rx_desc;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800204
Thomas Chou96fa1e42015-10-22 15:29:11 +0800205 alt_sgdma_construct_descriptor(
206 rx_desc,
207 rx_desc + 1,
208 NULL, /* read addr */
209 priv->rx_buf, /* write addr */
210 0, /* length or EOP */
211 0, /* gen eop */
212 0, /* read fixed */
213 0 /* write fixed or sop */
214 );
215
216 /* setup the sgdma */
217 alt_sgdma_start_transfer(priv->sgdma_rx, rx_desc);
218 debug("recv setup\n");
219
220 return 0;
Thomas Chouc960b132010-04-20 12:49:52 +0800221}
222
Thomas Chouacd71c32015-11-08 10:57:05 +0800223static void altera_tse_stop_mac(struct altera_tse_priv *priv)
224{
225 struct alt_tse_mac *mac_dev = priv->mac_dev;
226 u32 status;
227 ulong ctime;
228
229 /* reset the mac */
230 writel(ALTERA_TSE_CMD_SW_RESET_MSK, &mac_dev->command_config);
231 ctime = get_timer(0);
232 while (1) {
233 status = readl(&mac_dev->command_config);
234 if (!(status & ALTERA_TSE_CMD_SW_RESET_MSK))
235 break;
236 if (get_timer(ctime) > ALT_TSE_SW_RESET_TIMEOUT) {
237 debug("Reset mac timeout\n");
238 break;
239 }
240 }
241}
242
Thomas Chou38fa4ac2015-11-09 11:02:15 +0800243static void altera_tse_stop_sgdma(struct udevice *dev)
Thomas Chouc960b132010-04-20 12:49:52 +0800244{
Thomas Chou96fa1e42015-10-22 15:29:11 +0800245 struct altera_tse_priv *priv = dev_get_priv(dev);
Thomas Chou96fa1e42015-10-22 15:29:11 +0800246 struct alt_sgdma_registers *rx_sgdma = priv->sgdma_rx;
247 struct alt_sgdma_registers *tx_sgdma = priv->sgdma_tx;
248 struct alt_sgdma_descriptor *rx_desc = priv->rx_desc;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800249 int ret;
Thomas Chouc960b132010-04-20 12:49:52 +0800250
251 /* clear rx desc & wait for sgdma to complete */
252 rx_desc->descriptor_control = 0;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800253 writel(0, &rx_sgdma->control);
254 ret = alt_sgdma_wait_transfer(rx_sgdma);
255 if (ret == -ETIMEDOUT)
256 writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK,
257 &rx_sgdma->control);
Thomas Chouc960b132010-04-20 12:49:52 +0800258
Thomas Chou96fa1e42015-10-22 15:29:11 +0800259 writel(0, &tx_sgdma->control);
260 ret = alt_sgdma_wait_transfer(tx_sgdma);
261 if (ret == -ETIMEDOUT)
262 writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK,
263 &tx_sgdma->control);
Thomas Chouc960b132010-04-20 12:49:52 +0800264}
265
Thomas Choue3e87262015-11-09 14:36:29 +0800266static void msgdma_reset(struct msgdma_csr *csr)
267{
268 u32 status;
269 ulong ctime;
270
271 /* Reset mSGDMA */
272 writel(MSGDMA_CSR_STAT_MASK, &csr->status);
273 writel(MSGDMA_CSR_CTL_RESET, &csr->control);
274 ctime = get_timer(0);
275 while (1) {
276 status = readl(&csr->status);
277 if (!(status & MSGDMA_CSR_STAT_RESETTING))
278 break;
279 if (get_timer(ctime) > ALT_TSE_SW_RESET_TIMEOUT) {
280 debug("Reset msgdma timeout\n");
281 break;
282 }
283 }
284 /* Clear status */
285 writel(MSGDMA_CSR_STAT_MASK, &csr->status);
286}
287
288static u32 msgdma_wait(struct msgdma_csr *csr)
289{
290 u32 status;
291 ulong ctime;
292
293 /* Wait for the descriptor to complete */
294 ctime = get_timer(0);
295 while (1) {
296 status = readl(&csr->status);
297 if (!(status & MSGDMA_CSR_STAT_BUSY))
298 break;
299 if (get_timer(ctime) > ALT_TSE_SGDMA_BUSY_TIMEOUT) {
300 debug("sgdma timeout\n");
301 break;
302 }
303 }
304 /* Clear status */
305 writel(MSGDMA_CSR_STAT_MASK, &csr->status);
306
307 return status;
308}
309
310static int altera_tse_send_msgdma(struct udevice *dev, void *packet,
311 int length)
312{
313 struct altera_tse_priv *priv = dev_get_priv(dev);
314 struct msgdma_extended_desc *desc = priv->tx_desc;
315 u32 tx_buf = virt_to_phys(packet);
316 u32 status;
317
318 writel(tx_buf, &desc->read_addr_lo);
319 writel(0, &desc->read_addr_hi);
320 writel(0, &desc->write_addr_lo);
321 writel(0, &desc->write_addr_hi);
322 writel(length, &desc->len);
323 writel(0, &desc->burst_seq_num);
324 writel(MSGDMA_DESC_TX_STRIDE, &desc->stride);
325 writel(MSGDMA_DESC_CTL_TX_SINGLE, &desc->control);
326 status = msgdma_wait(priv->sgdma_tx);
327 debug("sent %d bytes, status %08x\n", length, status);
328
329 return 0;
330}
331
332static int altera_tse_recv_msgdma(struct udevice *dev, int flags,
333 uchar **packetp)
334{
335 struct altera_tse_priv *priv = dev_get_priv(dev);
336 struct msgdma_csr *csr = priv->sgdma_rx;
337 struct msgdma_response *resp = priv->rx_resp;
338 u32 level, length, status;
339
340 level = readl(&csr->resp_fill_level);
341 if (level & 0xffff) {
342 length = readl(&resp->bytes_transferred);
343 status = readl(&resp->status);
344 debug("recv %d bytes, status %08x\n", length, status);
345 *packetp = priv->rx_buf;
346
347 return length;
348 }
349
350 return -EAGAIN;
351}
352
353static int altera_tse_free_pkt_msgdma(struct udevice *dev, uchar *packet,
354 int length)
355{
356 struct altera_tse_priv *priv = dev_get_priv(dev);
357 struct msgdma_extended_desc *desc = priv->rx_desc;
358 u32 rx_buf = virt_to_phys(priv->rx_buf);
359
360 writel(0, &desc->read_addr_lo);
361 writel(0, &desc->read_addr_hi);
362 writel(rx_buf, &desc->write_addr_lo);
363 writel(0, &desc->write_addr_hi);
364 writel(PKTSIZE_ALIGN, &desc->len);
365 writel(0, &desc->burst_seq_num);
366 writel(MSGDMA_DESC_RX_STRIDE, &desc->stride);
367 writel(MSGDMA_DESC_CTL_RX_SINGLE, &desc->control);
368 debug("recv setup\n");
369
370 return 0;
371}
372
373static void altera_tse_stop_msgdma(struct udevice *dev)
374{
375 struct altera_tse_priv *priv = dev_get_priv(dev);
376
377 msgdma_reset(priv->sgdma_rx);
378 msgdma_reset(priv->sgdma_tx);
379}
380
Thomas Chou96fa1e42015-10-22 15:29:11 +0800381static int tse_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
Thomas Chouc960b132010-04-20 12:49:52 +0800382{
Thomas Chou96fa1e42015-10-22 15:29:11 +0800383 struct altera_tse_priv *priv = bus->priv;
384 struct alt_tse_mac *mac_dev = priv->mac_dev;
Thomas Chou2cd0a522015-11-06 09:36:26 +0800385 u32 value;
Thomas Chouc960b132010-04-20 12:49:52 +0800386
Thomas Chou96fa1e42015-10-22 15:29:11 +0800387 /* set mdio address */
388 writel(addr, &mac_dev->mdio_phy1_addr);
389 /* get the data */
390 value = readl(&mac_dev->mdio_phy1[reg]);
Thomas Chouc960b132010-04-20 12:49:52 +0800391
Thomas Chou96fa1e42015-10-22 15:29:11 +0800392 return value & 0xffff;
Thomas Chouc960b132010-04-20 12:49:52 +0800393}
394
Thomas Chou96fa1e42015-10-22 15:29:11 +0800395static int tse_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
396 u16 val)
Thomas Chouc960b132010-04-20 12:49:52 +0800397{
Thomas Chou96fa1e42015-10-22 15:29:11 +0800398 struct altera_tse_priv *priv = bus->priv;
399 struct alt_tse_mac *mac_dev = priv->mac_dev;
Thomas Chouc960b132010-04-20 12:49:52 +0800400
Thomas Chou96fa1e42015-10-22 15:29:11 +0800401 /* set mdio address */
402 writel(addr, &mac_dev->mdio_phy1_addr);
403 /* set the data */
404 writel(val, &mac_dev->mdio_phy1[reg]);
Thomas Chouc960b132010-04-20 12:49:52 +0800405
Thomas Chou6c7c4442010-04-27 20:15:10 +0800406 return 0;
407}
408
Thomas Chou96fa1e42015-10-22 15:29:11 +0800409static int tse_mdio_init(const char *name, struct altera_tse_priv *priv)
Thomas Chouc960b132010-04-20 12:49:52 +0800410{
Thomas Chou96fa1e42015-10-22 15:29:11 +0800411 struct mii_dev *bus = mdio_alloc();
Thomas Chouc960b132010-04-20 12:49:52 +0800412
Thomas Chou96fa1e42015-10-22 15:29:11 +0800413 if (!bus) {
414 printf("Failed to allocate MDIO bus\n");
415 return -ENOMEM;
416 }
Thomas Chouc960b132010-04-20 12:49:52 +0800417
Thomas Chou96fa1e42015-10-22 15:29:11 +0800418 bus->read = tse_mdio_read;
419 bus->write = tse_mdio_write;
Ben Whitten192bc692015-12-30 13:05:58 +0000420 snprintf(bus->name, sizeof(bus->name), "%s", name);
Thomas Chou96fa1e42015-10-22 15:29:11 +0800421
422 bus->priv = (void *)priv;
423
424 return mdio_register(bus);
425}
426
427static int tse_phy_init(struct altera_tse_priv *priv, void *dev)
428{
429 struct phy_device *phydev;
430 unsigned int mask = 0xffffffff;
431
432 if (priv->phyaddr)
433 mask = 1 << priv->phyaddr;
434
435 phydev = phy_find_by_mask(priv->bus, mask, priv->interface);
436 if (!phydev)
437 return -ENODEV;
438
439 phy_connect_dev(phydev, dev);
440
441 phydev->supported &= PHY_GBIT_FEATURES;
442 phydev->advertising = phydev->supported;
443
444 priv->phydev = phydev;
445 phy_config(phydev);
446
447 return 0;
448}
449
450static int altera_tse_write_hwaddr(struct udevice *dev)
451{
452 struct altera_tse_priv *priv = dev_get_priv(dev);
453 struct alt_tse_mac *mac_dev = priv->mac_dev;
454 struct eth_pdata *pdata = dev_get_platdata(dev);
455 u8 *hwaddr = pdata->enetaddr;
Thomas Chou2cd0a522015-11-06 09:36:26 +0800456 u32 mac_lo, mac_hi;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800457
458 mac_lo = (hwaddr[3] << 24) | (hwaddr[2] << 16) |
459 (hwaddr[1] << 8) | hwaddr[0];
460 mac_hi = (hwaddr[5] << 8) | hwaddr[4];
461 debug("Set MAC address to 0x%04x%08x\n", mac_hi, mac_lo);
462
463 writel(mac_lo, &mac_dev->mac_addr_0);
464 writel(mac_hi, &mac_dev->mac_addr_1);
465 writel(mac_lo, &mac_dev->supp_mac_addr_0_0);
466 writel(mac_hi, &mac_dev->supp_mac_addr_0_1);
467 writel(mac_lo, &mac_dev->supp_mac_addr_1_0);
468 writel(mac_hi, &mac_dev->supp_mac_addr_1_1);
469 writel(mac_lo, &mac_dev->supp_mac_addr_2_0);
470 writel(mac_hi, &mac_dev->supp_mac_addr_2_1);
471 writel(mac_lo, &mac_dev->supp_mac_addr_3_0);
472 writel(mac_hi, &mac_dev->supp_mac_addr_3_1);
473
474 return 0;
475}
476
Thomas Chou38fa4ac2015-11-09 11:02:15 +0800477static int altera_tse_send(struct udevice *dev, void *packet, int length)
478{
479 struct altera_tse_priv *priv = dev_get_priv(dev);
480 unsigned long tx_buf = (unsigned long)packet;
481
482 flush_dcache_range(tx_buf, tx_buf + length);
483
484 return priv->ops->send(dev, packet, length);
485}
486
487static int altera_tse_recv(struct udevice *dev, int flags, uchar **packetp)
488{
489 struct altera_tse_priv *priv = dev_get_priv(dev);
490
491 return priv->ops->recv(dev, flags, packetp);
492}
493
494static int altera_tse_free_pkt(struct udevice *dev, uchar *packet,
495 int length)
496{
497 struct altera_tse_priv *priv = dev_get_priv(dev);
498 unsigned long rx_buf = (unsigned long)priv->rx_buf;
499
500 invalidate_dcache_range(rx_buf, rx_buf + PKTSIZE_ALIGN);
501
502 return priv->ops->free_pkt(dev, packet, length);
503}
504
505static void altera_tse_stop(struct udevice *dev)
506{
507 struct altera_tse_priv *priv = dev_get_priv(dev);
508
509 priv->ops->stop(dev);
510 altera_tse_stop_mac(priv);
511}
512
Thomas Chou96fa1e42015-10-22 15:29:11 +0800513static int altera_tse_start(struct udevice *dev)
514{
515 struct altera_tse_priv *priv = dev_get_priv(dev);
516 struct alt_tse_mac *mac_dev = priv->mac_dev;
Thomas Chou2cd0a522015-11-06 09:36:26 +0800517 u32 val;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800518 int ret;
Thomas Chouc960b132010-04-20 12:49:52 +0800519
520 /* need to create sgdma */
Thomas Chouc960b132010-04-20 12:49:52 +0800521 debug("Configuring rx desc\n");
Thomas Chou96fa1e42015-10-22 15:29:11 +0800522 altera_tse_free_pkt(dev, priv->rx_buf, PKTSIZE_ALIGN);
Thomas Chouc960b132010-04-20 12:49:52 +0800523 /* start TSE */
524 debug("Configuring TSE Mac\n");
525 /* Initialize MAC registers */
Thomas Chou96fa1e42015-10-22 15:29:11 +0800526 writel(PKTSIZE_ALIGN, &mac_dev->max_frame_length);
527 writel(priv->rx_fifo_depth - 16, &mac_dev->rx_sel_empty_threshold);
528 writel(0, &mac_dev->rx_sel_full_threshold);
529 writel(priv->tx_fifo_depth - 16, &mac_dev->tx_sel_empty_threshold);
530 writel(0, &mac_dev->tx_sel_full_threshold);
531 writel(8, &mac_dev->rx_almost_empty_threshold);
532 writel(8, &mac_dev->rx_almost_full_threshold);
533 writel(8, &mac_dev->tx_almost_empty_threshold);
534 writel(3, &mac_dev->tx_almost_full_threshold);
Thomas Chouc960b132010-04-20 12:49:52 +0800535
536 /* NO Shift */
Thomas Chou96fa1e42015-10-22 15:29:11 +0800537 writel(0, &mac_dev->rx_cmd_stat);
538 writel(0, &mac_dev->tx_cmd_stat);
Thomas Chouc960b132010-04-20 12:49:52 +0800539
540 /* enable MAC */
Thomas Chou96fa1e42015-10-22 15:29:11 +0800541 val = ALTERA_TSE_CMD_TX_ENA_MSK | ALTERA_TSE_CMD_RX_ENA_MSK;
542 writel(val, &mac_dev->command_config);
Thomas Chouc960b132010-04-20 12:49:52 +0800543
Thomas Chou96fa1e42015-10-22 15:29:11 +0800544 /* Start up the PHY */
545 ret = phy_startup(priv->phydev);
546 if (ret) {
547 debug("Could not initialize PHY %s\n",
548 priv->phydev->dev->name);
549 return ret;
Thomas Chouc960b132010-04-20 12:49:52 +0800550 }
551
Thomas Chou96fa1e42015-10-22 15:29:11 +0800552 tse_adjust_link(priv, priv->phydev);
553
554 if (!priv->phydev->link)
555 return -EIO;
556
557 return 0;
Thomas Chouc960b132010-04-20 12:49:52 +0800558}
559
Thomas Chou38fa4ac2015-11-09 11:02:15 +0800560static const struct tse_ops tse_sgdma_ops = {
561 .send = altera_tse_send_sgdma,
562 .recv = altera_tse_recv_sgdma,
563 .free_pkt = altera_tse_free_pkt_sgdma,
564 .stop = altera_tse_stop_sgdma,
565};
566
Thomas Choue3e87262015-11-09 14:36:29 +0800567static const struct tse_ops tse_msgdma_ops = {
568 .send = altera_tse_send_msgdma,
569 .recv = altera_tse_recv_msgdma,
570 .free_pkt = altera_tse_free_pkt_msgdma,
571 .stop = altera_tse_stop_msgdma,
572};
573
Thomas Chou96fa1e42015-10-22 15:29:11 +0800574static int altera_tse_probe(struct udevice *dev)
Thomas Chouc960b132010-04-20 12:49:52 +0800575{
Thomas Chou96fa1e42015-10-22 15:29:11 +0800576 struct eth_pdata *pdata = dev_get_platdata(dev);
577 struct altera_tse_priv *priv = dev_get_priv(dev);
Thomas Chou75199d62015-11-06 09:37:17 +0800578 void *blob = (void *)gd->fdt_blob;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800579 int node = dev->of_offset;
580 const char *list, *end;
581 const fdt32_t *cell;
582 void *base, *desc_mem = NULL;
583 unsigned long addr, size;
Thomas Chou75199d62015-11-06 09:37:17 +0800584 int parent, addrc, sizec;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800585 int len, idx;
586 int ret;
Thomas Chouc960b132010-04-20 12:49:52 +0800587
Thomas Chou38fa4ac2015-11-09 11:02:15 +0800588 priv->dma_type = dev_get_driver_data(dev);
589 if (priv->dma_type == ALT_SGDMA)
590 priv->ops = &tse_sgdma_ops;
Thomas Choue3e87262015-11-09 14:36:29 +0800591 else
592 priv->ops = &tse_msgdma_ops;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800593 /*
Thomas Chou75199d62015-11-06 09:37:17 +0800594 * decode regs. there are multiple reg tuples, and they need to
595 * match with reg-names.
Thomas Chou96fa1e42015-10-22 15:29:11 +0800596 */
Thomas Chou75199d62015-11-06 09:37:17 +0800597 parent = fdt_parent_offset(blob, node);
598 of_bus_default_count_cells(blob, parent, &addrc, &sizec);
Thomas Chou96fa1e42015-10-22 15:29:11 +0800599 list = fdt_getprop(blob, node, "reg-names", &len);
600 if (!list)
601 return -ENOENT;
602 end = list + len;
603 cell = fdt_getprop(blob, node, "reg", &len);
604 if (!cell)
605 return -ENOENT;
606 idx = 0;
607 while (list < end) {
608 addr = fdt_translate_address((void *)blob,
609 node, cell + idx);
Thomas Chou75199d62015-11-06 09:37:17 +0800610 size = fdt_addr_to_cpu(cell[idx + addrc]);
Thomas Choue2b259f2015-11-14 11:21:16 +0800611 base = map_physmem(addr, size, MAP_NOCACHE);
Thomas Chou96fa1e42015-10-22 15:29:11 +0800612 len = strlen(list);
613 if (strcmp(list, "control_port") == 0)
614 priv->mac_dev = base;
615 else if (strcmp(list, "rx_csr") == 0)
616 priv->sgdma_rx = base;
Thomas Choue3e87262015-11-09 14:36:29 +0800617 else if (strcmp(list, "rx_desc") == 0)
618 priv->rx_desc = base;
619 else if (strcmp(list, "rx_resp") == 0)
620 priv->rx_resp = base;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800621 else if (strcmp(list, "tx_csr") == 0)
622 priv->sgdma_tx = base;
Thomas Choue3e87262015-11-09 14:36:29 +0800623 else if (strcmp(list, "tx_desc") == 0)
624 priv->tx_desc = base;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800625 else if (strcmp(list, "s1") == 0)
626 desc_mem = base;
Thomas Chou75199d62015-11-06 09:37:17 +0800627 idx += addrc + sizec;
Thomas Chou96fa1e42015-10-22 15:29:11 +0800628 list += (len + 1);
Thomas Chouc960b132010-04-20 12:49:52 +0800629 }
Thomas Chou96fa1e42015-10-22 15:29:11 +0800630 /* decode fifo depth */
631 priv->rx_fifo_depth = fdtdec_get_int(blob, node,
632 "rx-fifo-depth", 0);
633 priv->tx_fifo_depth = fdtdec_get_int(blob, node,
634 "tx-fifo-depth", 0);
635 /* decode phy */
636 addr = fdtdec_get_int(blob, node,
637 "phy-handle", 0);
638 addr = fdt_node_offset_by_phandle(blob, addr);
639 priv->phyaddr = fdtdec_get_int(blob, addr,
640 "reg", 0);
641 /* init desc */
Thomas Chou38fa4ac2015-11-09 11:02:15 +0800642 if (priv->dma_type == ALT_SGDMA) {
643 len = sizeof(struct alt_sgdma_descriptor) * 4;
644 if (!desc_mem) {
645 desc_mem = dma_alloc_coherent(len, &addr);
646 if (!desc_mem)
647 return -ENOMEM;
648 }
649 memset(desc_mem, 0, len);
650 priv->tx_desc = desc_mem;
651 priv->rx_desc = priv->tx_desc +
652 2 * sizeof(struct alt_sgdma_descriptor);
Joachim Foersterb962ac72011-10-17 05:24:44 +0000653 }
Thomas Chou96fa1e42015-10-22 15:29:11 +0800654 /* allocate recv packet buffer */
655 priv->rx_buf = malloc_cache_aligned(PKTSIZE_ALIGN);
656 if (!priv->rx_buf)
657 return -ENOMEM;
Joachim Foersterb962ac72011-10-17 05:24:44 +0000658
Thomas Chou96fa1e42015-10-22 15:29:11 +0800659 /* stop controller */
660 debug("Reset TSE & SGDMAs\n");
661 altera_tse_stop(dev);
Thomas Chouc960b132010-04-20 12:49:52 +0800662
Thomas Chou96fa1e42015-10-22 15:29:11 +0800663 /* start the phy */
664 priv->interface = pdata->phy_interface;
665 tse_mdio_init(dev->name, priv);
666 priv->bus = miiphy_get_dev_by_name(dev->name);
Thomas Chouc960b132010-04-20 12:49:52 +0800667
Thomas Chou96fa1e42015-10-22 15:29:11 +0800668 ret = tse_phy_init(priv, dev);
Thomas Chouc960b132010-04-20 12:49:52 +0800669
Thomas Chou96fa1e42015-10-22 15:29:11 +0800670 return ret;
Thomas Chouc960b132010-04-20 12:49:52 +0800671}
Thomas Chou96fa1e42015-10-22 15:29:11 +0800672
673static int altera_tse_ofdata_to_platdata(struct udevice *dev)
674{
675 struct eth_pdata *pdata = dev_get_platdata(dev);
676 const char *phy_mode;
677
678 pdata->phy_interface = -1;
679 phy_mode = fdt_getprop(gd->fdt_blob, dev->of_offset, "phy-mode", NULL);
680 if (phy_mode)
681 pdata->phy_interface = phy_get_interface_by_name(phy_mode);
682 if (pdata->phy_interface == -1) {
683 debug("%s: Invalid PHY interface '%s'\n", __func__, phy_mode);
684 return -EINVAL;
685 }
686
687 return 0;
688}
689
690static const struct eth_ops altera_tse_ops = {
691 .start = altera_tse_start,
692 .send = altera_tse_send,
693 .recv = altera_tse_recv,
694 .free_pkt = altera_tse_free_pkt,
695 .stop = altera_tse_stop,
696 .write_hwaddr = altera_tse_write_hwaddr,
697};
698
699static const struct udevice_id altera_tse_ids[] = {
Thomas Choue3e87262015-11-09 14:36:29 +0800700 { .compatible = "altr,tse-msgdma-1.0", .data = ALT_MSGDMA },
Thomas Chou38fa4ac2015-11-09 11:02:15 +0800701 { .compatible = "altr,tse-1.0", .data = ALT_SGDMA },
702 {}
Thomas Chou96fa1e42015-10-22 15:29:11 +0800703};
704
705U_BOOT_DRIVER(altera_tse) = {
706 .name = "altera_tse",
707 .id = UCLASS_ETH,
708 .of_match = altera_tse_ids,
709 .ops = &altera_tse_ops,
710 .ofdata_to_platdata = altera_tse_ofdata_to_platdata,
711 .platdata_auto_alloc_size = sizeof(struct eth_pdata),
712 .priv_auto_alloc_size = sizeof(struct altera_tse_priv),
713 .probe = altera_tse_probe,
714};