FreeCalypso > hg > freecalypso-tools
annotate target-utils/libcommon/uartsel.c @ 505:7bf0d909c87e
fc-loadtool flash ID check: change of reset after the check logic
This change only affects those flash configurations that have ID checks
enabled. The logic for resetting the flash after the ID check has been
changed as follows:
1) If the check fails, we return without attempting to reset the flash.
2) If the check is successful, we reset the flash using the configured
method (could be AMD or Intel or Intel W30) instead of always doing an
AMD flash reset as the original code did.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 27 May 2019 19:58:01 +0000 |
parents | 2942c5ef76ed |
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0
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1 /* |
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2 * uart_select_init() figures out which UART was used to load us |
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3 * through the boot ROM, and sets things up for us to use the same |
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4 * UART for our communication. |
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5 */ |
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6 |
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7 #include "types.h" |
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8 #include "romvars.h" |
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9 #include "ns16550.h" |
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10 #include "halt.h" |
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11 |
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12 extern struct ns16550_regs *uart_base; |
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13 |
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14 static u16 rom_version; |
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15 static struct boot_rom_vars *rom_vars; |
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16 static char *uart_name; |
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17 |
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18 uart_select_init() |
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19 { |
35
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20 rom_version = *(const u16 *)0x1FFE; |
0
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21 |
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22 switch (rom_version) { |
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23 case 0x0200: |
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24 rom_vars = (struct boot_rom_vars *) 0x800504; |
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25 break; |
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26 case 0x0300: |
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27 rom_vars = (struct boot_rom_vars *) 0x800518; |
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28 break; |
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29 default: |
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30 _exit(HALTCODE_BOOTROMVER); |
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31 } |
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32 |
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33 switch (rom_vars->uart_id) { |
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34 case 0: |
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35 uart_base = (struct ns16550_regs *) 0xFFFF5800; |
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36 uart_name = "MODEM"; |
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37 break; |
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38 case 1: |
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39 uart_base = (struct ns16550_regs *) 0xFFFF5000; |
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40 uart_name = "IrDA"; |
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41 break; |
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42 default: |
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43 _exit(HALTCODE_INVALIDUART); |
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44 } |
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45 } |
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46 |
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47 print_boot_rom_info() |
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48 { |
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49 printf("Loaded via boot ROM v%04X, UART %d (%s) at baud rate #%d\n", |
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50 rom_version, rom_vars->uart_id, uart_name, |
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51 rom_vars->baud_rate_code); |
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52 printf("CLKTCXO input autodetected to be %d MHz\n", |
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53 rom_vars->clktcxo_13mhz ? 13 : 26); |
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54 } |