2 * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
4 * Dave Liu <daveliu@freescale.com>
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 0x04, 0x05, 0x0c, 0x0d,
117 0x14, 0x15, 0x1c, 0x1d,
118 0x24, 0x25, 0x2c, 0x2d,
119 0x34, 0x35, 0x88, 0x89,
120 0x98, 0x99, 0xa8, 0xa9,
121 0xb8, 0xb9, 0xc8, 0xc9,
122 0xd8, 0xd9, 0xe8, 0xe9,
123 0x08, 0x09, 0x18, 0x19,
124 0x28, 0x29, 0x38, 0x39,
125 0x48, 0x49, 0x58, 0x59,
126 0x68, 0x69, 0x78, 0x79,
130 static void qe_snums_init(void)
134 for (i = 0; i < QE_NUM_OF_SNUM; i++) {
135 snums[i].state = QE_SNUM_STATE_FREE;
136 snums[i].num = thread_snum[i];
140 int qe_get_snum(void)
145 for (i = 0; i < QE_NUM_OF_SNUM; i++) {
146 if (snums[i].state == QE_SNUM_STATE_FREE) {
147 snums[i].state = QE_SNUM_STATE_USED;
156 void qe_put_snum(u8 snum)
160 for (i = 0; i < QE_NUM_OF_SNUM; i++) {
161 if (snums[i].num == snum) {
162 snums[i].state = QE_SNUM_STATE_FREE;
168 void qe_init(uint qe_base)
170 /* Init the QE IMMR base */
171 qe_immr = (qe_map_t *)qe_base;
173 #ifdef CONFIG_SYS_QE_FW_ADDR
175 * Upload microcode to IRAM for those SOCs which do not have ROM in QE.
177 qe_upload_firmware((const struct qe_firmware *) CONFIG_SYS_QE_FW_ADDR);
179 /* enable the microcode in IRAM */
180 out_be32(&qe_immr->iram.iready,QE_IRAM_READY);
183 gd->mp_alloc_base = QE_DATAONLY_BASE;
184 gd->mp_alloc_top = gd->mp_alloc_base + QE_DATAONLY_SIZE;
192 qe_issue_cmd(QE_RESET, QE_CR_SUBBLOCK_INVALID,
193 (u8) QE_CR_PROTOCOL_UNSPECIFIED, 0);
196 void qe_assign_page(uint snum, uint para_ram_base)
200 out_be32(&qe_immr->cp.cecdr, para_ram_base);
201 out_be32(&qe_immr->cp.cecr, ((u32) snum<<QE_CR_ASSIGN_PAGE_SNUM_SHIFT)
202 | QE_CR_FLG | QE_ASSIGN_PAGE);
204 /* Wait for the QE_CR_FLG to clear */
206 cecr = in_be32(&qe_immr->cp.cecr);
207 } while (cecr & QE_CR_FLG );
213 * brg: 0~15 as BRG1~BRG16
215 * BRG input clock comes from the BRGCLK (internal clock generated from
216 the QE clock, it is one-half of the QE clock), If need the clock source
217 from CLKn pin, we have te change the function.
220 #define BRG_CLK (gd->brg_clk)
222 int qe_set_brg(uint brg, uint rate)
228 if (brg >= QE_NUM_OF_BRGS)
230 bp = (uint *)&qe_immr->brg.brgc1;
233 divisor = (BRG_CLK / rate);
234 if (divisor > QE_BRGC_DIVISOR_MAX + 1) {
239 *bp = ((divisor - 1) << QE_BRGC_DIVISOR_SHIFT) | QE_BRGC_ENABLE;
240 __asm__ __volatile__("sync");
243 *bp |= QE_BRGC_DIV16;
244 __asm__ __volatile__("sync");
250 /* Set ethernet MII clock master
252 int qe_set_mii_clk_src(int ucc_num)
256 /* check if the UCC number is in range. */
257 if ((ucc_num > UCC_MAX_NUM - 1) || (ucc_num < 0)) {
258 printf("%s: ucc num not in ranges\n", __FUNCTION__);
262 cmxgcr = in_be32(&qe_immr->qmx.cmxgcr);
263 cmxgcr &= ~QE_CMXGCR_MII_ENET_MNG_MASK;
264 cmxgcr |= (ucc_num <<QE_CMXGCR_MII_ENET_MNG_SHIFT);
265 out_be32(&qe_immr->qmx.cmxgcr, cmxgcr);
270 /* Firmware information stored here for qe_get_firmware_info() */
271 static struct qe_firmware_info qe_firmware_info;
274 * Set to 1 if QE firmware has been uploaded, and therefore
275 * qe_firmware_info contains valid data.
277 static int qe_firmware_uploaded;
280 * Upload a QE microcode
282 * This function is a worker function for qe_upload_firmware(). It does
283 * the actual uploading of the microcode.
285 static void qe_upload_microcode(const void *base,
286 const struct qe_microcode *ucode)
288 const u32 *code = base + be32_to_cpu(ucode->code_offset);
291 if (ucode->major || ucode->minor || ucode->revision)
292 printf("QE: uploading microcode '%s' version %u.%u.%u\n",
293 ucode->id, ucode->major, ucode->minor, ucode->revision);
295 printf("QE: uploading microcode '%s'\n", ucode->id);
297 /* Use auto-increment */
298 out_be32(&qe_immr->iram.iadd, be32_to_cpu(ucode->iram_offset) |
299 QE_IRAM_IADD_AIE | QE_IRAM_IADD_BADDR);
301 for (i = 0; i < be32_to_cpu(ucode->count); i++)
302 out_be32(&qe_immr->iram.idata, be32_to_cpu(code[i]));
306 * Upload a microcode to the I-RAM at a specific address.
308 * See docs/README.qe_firmware for information on QE microcode uploading.
310 * Currently, only version 1 is supported, so the 'version' field must be
313 * The SOC model and revision are not validated, they are only displayed for
314 * informational purposes.
316 * 'calc_size' is the calculated size, in bytes, of the firmware structure and
317 * all of the microcode structures, minus the CRC.
319 * 'length' is the size that the structure says it is, including the CRC.
321 int qe_upload_firmware(const struct qe_firmware *firmware)
326 size_t calc_size = sizeof(struct qe_firmware);
328 const struct qe_header *hdr;
331 printf("Invalid address\n");
335 hdr = &firmware->header;
336 length = be32_to_cpu(hdr->length);
338 /* Check the magic */
339 if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') ||
340 (hdr->magic[2] != 'F')) {
341 printf("Not a microcode\n");
345 /* Check the version */
346 if (hdr->version != 1) {
347 printf("Unsupported version\n");
351 /* Validate some of the fields */
352 if ((firmware->count < 1) || (firmware->count > MAX_QE_RISC)) {
353 printf("Invalid data\n");
357 /* Validate the length and check if there's a CRC */
358 calc_size += (firmware->count - 1) * sizeof(struct qe_microcode);
360 for (i = 0; i < firmware->count; i++)
362 * For situations where the second RISC uses the same microcode
363 * as the first, the 'code_offset' and 'count' fields will be
364 * zero, so it's okay to add those.
366 calc_size += sizeof(u32) *
367 be32_to_cpu(firmware->microcode[i].count);
369 /* Validate the length */
370 if (length != calc_size + sizeof(u32)) {
371 printf("Invalid length\n");
376 * Validate the CRC. We would normally call crc32_no_comp(), but that
377 * function isn't available unless you turn on JFFS support.
379 crc = be32_to_cpu(*(u32 *)((void *)firmware + calc_size));
380 if (crc != (crc32(-1, (const void *) firmware, calc_size) ^ -1)) {
381 printf("Firmware CRC is invalid\n");
386 * If the microcode calls for it, split the I-RAM.
388 if (!firmware->split) {
389 out_be16(&qe_immr->cp.cercr,
390 in_be16(&qe_immr->cp.cercr) | QE_CP_CERCR_CIR);
393 if (firmware->soc.model)
394 printf("Firmware '%s' for %u V%u.%u\n",
395 firmware->id, be16_to_cpu(firmware->soc.model),
396 firmware->soc.major, firmware->soc.minor);
398 printf("Firmware '%s'\n", firmware->id);
401 * The QE only supports one microcode per RISC, so clear out all the
402 * saved microcode information and put in the new.
404 memset(&qe_firmware_info, 0, sizeof(qe_firmware_info));
405 strcpy(qe_firmware_info.id, (char *)firmware->id);
406 qe_firmware_info.extended_modes = firmware->extended_modes;
407 memcpy(qe_firmware_info.vtraps, firmware->vtraps,
408 sizeof(firmware->vtraps));
409 qe_firmware_uploaded = 1;
411 /* Loop through each microcode. */
412 for (i = 0; i < firmware->count; i++) {
413 const struct qe_microcode *ucode = &firmware->microcode[i];
415 /* Upload a microcode if it's present */
416 if (ucode->code_offset)
417 qe_upload_microcode(firmware, ucode);
419 /* Program the traps for this processor */
420 for (j = 0; j < 16; j++) {
421 u32 trap = be32_to_cpu(ucode->traps[j]);
424 out_be32(&qe_immr->rsp[i].tibcr[j], trap);
428 out_be32(&qe_immr->rsp[i].eccr, be32_to_cpu(ucode->eccr));
434 struct qe_firmware_info *qe_get_firmware_info(void)
436 return qe_firmware_uploaded ? &qe_firmware_info : NULL;
439 static int qe_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
444 return cmd_usage(cmdtp);
446 if (strcmp(argv[1], "fw") == 0) {
447 addr = simple_strtoul(argv[2], NULL, 16);
450 printf("Invalid address\n");
455 * If a length was supplied, compare that with the 'length'
460 ulong length = simple_strtoul(argv[3], NULL, 16);
461 struct qe_firmware *firmware = (void *) addr;
463 if (length != be32_to_cpu(firmware->header.length)) {
464 printf("Length mismatch\n");
469 return qe_upload_firmware((const struct qe_firmware *) addr);
472 return cmd_usage(cmdtp);
477 "QUICC Engine commands",
478 "fw <addr> [<length>] - Upload firmware binary at address <addr> to "
480 "\twith optional length <length> verification."