FreeCalypso > hg > freecalypso-tools

annotate target-utils/dspdump/dspops.c @ 710:c1f72d807250

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CHANGES: tiffs-mkfs addition
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 23 May 2020 03:39:48 +0000
parents 27b5526ba1a8
children
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rev   line source
540
27b5526ba1a8 dspdump target program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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1 #include "types.h"
27b5526ba1a8 dspdump target program written, compiles
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2 #include "leadapi.h"
27b5526ba1a8 dspdump target program written, compiles
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3 #include "dumpagent.h"
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4
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5 wait_for_dsp_ready()
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6 {
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7 unsigned cnt;
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8
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9 for (cnt = 0; cnt < 10000; cnt++)
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10 if (DOWNLOAD_STATUS == LEAD_READY)
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11 return(0);
27b5526ba1a8 dspdump target program written, compiles
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12 return(-1);
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13 }
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14
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15 boot_dsp_dump_agent()
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16 {
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17 const u16 *src;
27b5526ba1a8 dspdump target program written, compiles
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18 volatile u16 *api;
27b5526ba1a8 dspdump target program written, compiles
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19 unsigned n;
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20
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21 /* put it into reset first */
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22 CLKM_CNTL_RST |= CLKM_LEAD_RST;
27b5526ba1a8 dspdump target program written, compiles
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23 /* generous 1 ms for the reset pulse */
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24 wait_ARM_cycles(13000);
27b5526ba1a8 dspdump target program written, compiles
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25 /* lift it out of reset */
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26 CLKM_CNTL_RST &= ~CLKM_LEAD_RST;
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27 /* another generous 1 ms */
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28 wait_ARM_cycles(13000);
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29 /* bootloader should be ready for us now */
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30 if (wait_for_dsp_ready() < 0) {
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31 printf("ERROR: DSP bootloader not ready out of reset\n");
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32 return(-1);
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33 }
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34 /* upload the agent code */
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35 src = dsp_agent_code;
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36 api = (volatile u16 *) APIF_ADDR;
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37 for (n = 0; n < DSP_DUMPCODE_LEN; n++)
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38 *api++ = *src++;
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39 DOWNLOAD_EXT_PAGE = 0;
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40 DOWNLOAD_SIZE = DSP_DUMPCODE_LEN;
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41 DOWNLOAD_ADDR = DSP_DUMPCODE_START;
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42 DOWNLOAD_STATUS = BLOCK_READY;
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43 if (wait_for_dsp_ready() < 0) {
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44 printf("ERROR: DSP bl not ready after block write\n");
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45 return(-1);
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46 }
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47 /* start it! */
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48 DOWNLOAD_EXT_PAGE = 0;
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49 DOWNLOAD_SIZE = 0;
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50 DOWNLOAD_ADDR = DSP_DUMPCODE_START;
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51 DOWNLOAD_STATUS = BLOCK_READY;
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52 if (wait_for_dsp_ready() < 0) {
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53 printf("ERROR: DSP not ready after commanded jump to agent\n");
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54 return(-1);
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55 }
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56 }
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57
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58 dsp_read_op(mode, addr, blklen)
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59 u16 mode, blklen;
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60 u32 addr;
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61 {
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62 int rc;
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63
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64 APIRAM_FIRST_WORD = mode;
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65 DOWNLOAD_STATUS = PAGE_SELECTION;
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66 rc = wait_for_dsp_ready();
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67 if (rc < 0)
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68 return(rc);
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69 DOWNLOAD_EXT_PAGE = addr >> 16;
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70 DOWNLOAD_SIZE = blklen;
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71 DOWNLOAD_ADDR = addr;
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72 DOWNLOAD_STATUS = BLOCK_READY;
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73 rc = wait_for_dsp_ready();
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74 return(rc);
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75 }