2 * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
5 * based on source code of Shlomi Gridish
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include "asm/errno.h"
27 #include "asm/immap_qe.h"
30 qe_map_t *qe_immr = NULL;
31 static qe_snum_t snums[QE_NUM_OF_SNUM];
33 DECLARE_GLOBAL_DATA_PTR;
35 void qe_issue_cmd(uint cmd, uint sbc, u8 mcn, u32 cmd_data)
39 if (cmd == QE_RESET) {
40 out_be32(&qe_immr->cp.cecr,(u32) (cmd | QE_CR_FLG));
42 out_be32(&qe_immr->cp.cecdr, cmd_data);
43 out_be32(&qe_immr->cp.cecr, (sbc | QE_CR_FLG |
44 ((u32) mcn<<QE_CR_PROTOCOL_SHIFT) | cmd));
46 /* Wait for the QE_CR_FLG to clear */
48 cecr = in_be32(&qe_immr->cp.cecr);
49 } while (cecr & QE_CR_FLG);
54 uint qe_muram_alloc(uint size, uint align)
60 align_mask = align - 1;
61 savebase = gd->mp_alloc_base;
63 if ((off = (gd->mp_alloc_base & align_mask)) != 0)
64 gd->mp_alloc_base += (align - off);
66 if ((off = size & align_mask) != 0)
67 size += (align - off);
69 if ((gd->mp_alloc_base + size) >= gd->mp_alloc_top) {
70 gd->mp_alloc_base = savebase;
71 printf("%s: ran out of ram.\n", __FUNCTION__);
74 retloc = gd->mp_alloc_base;
75 gd->mp_alloc_base += size;
77 memset((void *)&qe_immr->muram[retloc], 0, size);
79 __asm__ __volatile__("sync");
84 void *qe_muram_addr(uint offset)
86 return (void *)&qe_immr->muram[offset];
89 static void qe_sdma_init(void)
92 uint sdma_buffer_base;
94 p = (volatile sdma_t *)&qe_immr->sdma;
96 /* All of DMA transaction in bus 1 */
97 out_be32(&p->sdaqr, 0);
98 out_be32(&p->sdaqmr, 0);
100 /* Allocate 2KB temporary buffer for sdma */
101 sdma_buffer_base = qe_muram_alloc(2048, 4096);
102 out_be32(&p->sdwbcr, sdma_buffer_base & QE_SDEBCR_BA_MASK);
104 /* Clear sdma status */
105 out_be32(&p->sdsr, 0x03000000);
107 /* Enable global mode on bus 1, and 2KB buffer size */
108 out_be32(&p->sdmr, QE_SDMR_GLB_1_MSK | (0x3 << QE_SDMR_CEN_SHIFT));
111 /* This table is a list of the serial numbers of the Threads, taken from the
112 * "SNUM Table" chart in the QE Reference Manual. The order is not important,
113 * we just need to know what the SNUMs are for the threads.
115 static u8 thread_snum[] = {
116 /* Evthreads 16-29 are not supported in MPC8309 */
117 #if !defined(CONFIG_MPC8309)
118 0x04, 0x05, 0x0c, 0x0d,
119 0x14, 0x15, 0x1c, 0x1d,
120 0x24, 0x25, 0x2c, 0x2d,
123 0x88, 0x89, 0x98, 0x99,
124 0xa8, 0xa9, 0xb8, 0xb9,
125 0xc8, 0xc9, 0xd8, 0xd9,
126 0xe8, 0xe9, 0x08, 0x09,
127 0x18, 0x19, 0x28, 0x29,
128 0x38, 0x39, 0x48, 0x49,
129 0x58, 0x59, 0x68, 0x69,
130 0x78, 0x79, 0x80, 0x81
133 static void qe_snums_init(void)
137 for (i = 0; i < QE_NUM_OF_SNUM; i++) {
138 snums[i].state = QE_SNUM_STATE_FREE;
139 snums[i].num = thread_snum[i];
143 int qe_get_snum(void)
148 for (i = 0; i < QE_NUM_OF_SNUM; i++) {
149 if (snums[i].state == QE_SNUM_STATE_FREE) {
150 snums[i].state = QE_SNUM_STATE_USED;
159 void qe_put_snum(u8 snum)
163 for (i = 0; i < QE_NUM_OF_SNUM; i++) {
164 if (snums[i].num == snum) {
165 snums[i].state = QE_SNUM_STATE_FREE;
171 void qe_init(uint qe_base)
173 /* Init the QE IMMR base */
174 qe_immr = (qe_map_t *)qe_base;
176 #ifdef CONFIG_SYS_QE_FMAN_FW_IN_NOR
178 * Upload microcode to IRAM for those SOCs which do not have ROM in QE.
180 qe_upload_firmware((const void *)CONFIG_SYS_QE_FMAN_FW_ADDR);
182 /* enable the microcode in IRAM */
183 out_be32(&qe_immr->iram.iready,QE_IRAM_READY);
186 gd->mp_alloc_base = QE_DATAONLY_BASE;
187 gd->mp_alloc_top = gd->mp_alloc_base + QE_DATAONLY_SIZE;
195 qe_issue_cmd(QE_RESET, QE_CR_SUBBLOCK_INVALID,
196 (u8) QE_CR_PROTOCOL_UNSPECIFIED, 0);
199 void qe_assign_page(uint snum, uint para_ram_base)
203 out_be32(&qe_immr->cp.cecdr, para_ram_base);
204 out_be32(&qe_immr->cp.cecr, ((u32) snum<<QE_CR_ASSIGN_PAGE_SNUM_SHIFT)
205 | QE_CR_FLG | QE_ASSIGN_PAGE);
207 /* Wait for the QE_CR_FLG to clear */
209 cecr = in_be32(&qe_immr->cp.cecr);
210 } while (cecr & QE_CR_FLG );
216 * brg: 0~15 as BRG1~BRG16
218 * BRG input clock comes from the BRGCLK (internal clock generated from
219 the QE clock, it is one-half of the QE clock), If need the clock source
220 from CLKn pin, we have te change the function.
223 #define BRG_CLK (gd->brg_clk)
225 int qe_set_brg(uint brg, uint rate)
231 if (brg >= QE_NUM_OF_BRGS)
233 bp = (uint *)&qe_immr->brg.brgc1;
236 divisor = (BRG_CLK / rate);
237 if (divisor > QE_BRGC_DIVISOR_MAX + 1) {
242 *bp = ((divisor - 1) << QE_BRGC_DIVISOR_SHIFT) | QE_BRGC_ENABLE;
243 __asm__ __volatile__("sync");
246 *bp |= QE_BRGC_DIV16;
247 __asm__ __volatile__("sync");
253 /* Set ethernet MII clock master
255 int qe_set_mii_clk_src(int ucc_num)
259 /* check if the UCC number is in range. */
260 if ((ucc_num > UCC_MAX_NUM - 1) || (ucc_num < 0)) {
261 printf("%s: ucc num not in ranges\n", __FUNCTION__);
265 cmxgcr = in_be32(&qe_immr->qmx.cmxgcr);
266 cmxgcr &= ~QE_CMXGCR_MII_ENET_MNG_MASK;
267 cmxgcr |= (ucc_num <<QE_CMXGCR_MII_ENET_MNG_SHIFT);
268 out_be32(&qe_immr->qmx.cmxgcr, cmxgcr);
273 /* Firmware information stored here for qe_get_firmware_info() */
274 static struct qe_firmware_info qe_firmware_info;
277 * Set to 1 if QE firmware has been uploaded, and therefore
278 * qe_firmware_info contains valid data.
280 static int qe_firmware_uploaded;
283 * Upload a QE microcode
285 * This function is a worker function for qe_upload_firmware(). It does
286 * the actual uploading of the microcode.
288 static void qe_upload_microcode(const void *base,
289 const struct qe_microcode *ucode)
291 const u32 *code = base + be32_to_cpu(ucode->code_offset);
294 if (ucode->major || ucode->minor || ucode->revision)
295 printf("QE: uploading microcode '%s' version %u.%u.%u\n",
296 ucode->id, ucode->major, ucode->minor, ucode->revision);
298 printf("QE: uploading microcode '%s'\n", ucode->id);
300 /* Use auto-increment */
301 out_be32(&qe_immr->iram.iadd, be32_to_cpu(ucode->iram_offset) |
302 QE_IRAM_IADD_AIE | QE_IRAM_IADD_BADDR);
304 for (i = 0; i < be32_to_cpu(ucode->count); i++)
305 out_be32(&qe_immr->iram.idata, be32_to_cpu(code[i]));
309 * Upload a microcode to the I-RAM at a specific address.
311 * See docs/README.qe_firmware for information on QE microcode uploading.
313 * Currently, only version 1 is supported, so the 'version' field must be
316 * The SOC model and revision are not validated, they are only displayed for
317 * informational purposes.
319 * 'calc_size' is the calculated size, in bytes, of the firmware structure and
320 * all of the microcode structures, minus the CRC.
322 * 'length' is the size that the structure says it is, including the CRC.
324 int qe_upload_firmware(const struct qe_firmware *firmware)
329 size_t calc_size = sizeof(struct qe_firmware);
331 const struct qe_header *hdr;
334 printf("Invalid address\n");
338 hdr = &firmware->header;
339 length = be32_to_cpu(hdr->length);
341 /* Check the magic */
342 if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') ||
343 (hdr->magic[2] != 'F')) {
344 printf("Not a microcode\n");
348 /* Check the version */
349 if (hdr->version != 1) {
350 printf("Unsupported version\n");
354 /* Validate some of the fields */
355 if ((firmware->count < 1) || (firmware->count > MAX_QE_RISC)) {
356 printf("Invalid data\n");
360 /* Validate the length and check if there's a CRC */
361 calc_size += (firmware->count - 1) * sizeof(struct qe_microcode);
363 for (i = 0; i < firmware->count; i++)
365 * For situations where the second RISC uses the same microcode
366 * as the first, the 'code_offset' and 'count' fields will be
367 * zero, so it's okay to add those.
369 calc_size += sizeof(u32) *
370 be32_to_cpu(firmware->microcode[i].count);
372 /* Validate the length */
373 if (length != calc_size + sizeof(u32)) {
374 printf("Invalid length\n");
379 * Validate the CRC. We would normally call crc32_no_comp(), but that
380 * function isn't available unless you turn on JFFS support.
382 crc = be32_to_cpu(*(u32 *)((void *)firmware + calc_size));
383 if (crc != (crc32(-1, (const void *) firmware, calc_size) ^ -1)) {
384 printf("Firmware CRC is invalid\n");
389 * If the microcode calls for it, split the I-RAM.
391 if (!firmware->split) {
392 out_be16(&qe_immr->cp.cercr,
393 in_be16(&qe_immr->cp.cercr) | QE_CP_CERCR_CIR);
396 if (firmware->soc.model)
397 printf("Firmware '%s' for %u V%u.%u\n",
398 firmware->id, be16_to_cpu(firmware->soc.model),
399 firmware->soc.major, firmware->soc.minor);
401 printf("Firmware '%s'\n", firmware->id);
404 * The QE only supports one microcode per RISC, so clear out all the
405 * saved microcode information and put in the new.
407 memset(&qe_firmware_info, 0, sizeof(qe_firmware_info));
408 strcpy(qe_firmware_info.id, (char *)firmware->id);
409 qe_firmware_info.extended_modes = firmware->extended_modes;
410 memcpy(qe_firmware_info.vtraps, firmware->vtraps,
411 sizeof(firmware->vtraps));
412 qe_firmware_uploaded = 1;
414 /* Loop through each microcode. */
415 for (i = 0; i < firmware->count; i++) {
416 const struct qe_microcode *ucode = &firmware->microcode[i];
418 /* Upload a microcode if it's present */
419 if (ucode->code_offset)
420 qe_upload_microcode(firmware, ucode);
422 /* Program the traps for this processor */
423 for (j = 0; j < 16; j++) {
424 u32 trap = be32_to_cpu(ucode->traps[j]);
427 out_be32(&qe_immr->rsp[i].tibcr[j], trap);
431 out_be32(&qe_immr->rsp[i].eccr, be32_to_cpu(ucode->eccr));
437 struct qe_firmware_info *qe_get_firmware_info(void)
439 return qe_firmware_uploaded ? &qe_firmware_info : NULL;
442 static int qe_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
447 return cmd_usage(cmdtp);
449 if (strcmp(argv[1], "fw") == 0) {
450 addr = simple_strtoul(argv[2], NULL, 16);
453 printf("Invalid address\n");
458 * If a length was supplied, compare that with the 'length'
463 ulong length = simple_strtoul(argv[3], NULL, 16);
464 struct qe_firmware *firmware = (void *) addr;
466 if (length != be32_to_cpu(firmware->header.length)) {
467 printf("Length mismatch\n");
472 return qe_upload_firmware((const struct qe_firmware *) addr);
475 return cmd_usage(cmdtp);
480 "QUICC Engine commands",
481 "fw <addr> [<length>] - Upload firmware binary at address <addr> to "
483 "\twith optional length <length> verification."