FreeCalypso > hg > freecalypso-tools

annotate target-utils/include/romvars.h @ 1012:11391cb6bdc0

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patch from fixeria: doc change from SE K2x0 to K2xx Since their discovery in late 2022, Sony Ericsson K200 and K220 phones were collectively referred to as SE K2x0 in FreeCalypso documentation. However, now that SE K205 has been discovered as yet another member of the same family (same PCBA in different case), it makes more sense to refer to the whole family as SE K2xx.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 23 Sep 2024 12:23:20 +0000
parents e7502631a0f9
children
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1 /*
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2 * Our loadagent will always be loaded into Calypso targets by the on-chip
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3 * boot ROM operating in the UART download mode. The lowest IRAM address
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4 * at which we can load our code is 0x800750; somewhat lower at 0x800518
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5 * the boot ROM downloader has a few variables which may have been intended
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6 * to be private to the boot ROM, but which are useful to us. For example,
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7 * by looking at these variables, we can see which of the two UARTs was
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8 * used to feed our code to the boot ROM, and use the same UART for
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9 * subsequent communication - without building multiple versions of our
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10 * loadagent or resorting to other ugliness.
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11 *
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12 * This header file defines the layout of the IRAM structure in question,
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13 * based on the disassembly of the boot ROM.
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14 */
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15
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16 #ifndef __ROMVARS_H
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17 #define __ROMVARS_H
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18
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19 #include "types.h"
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20
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21 struct boot_rom_vars {
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22 u8 baud_rate_code;
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23 u8 pad1[3];
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24 u32 uart_timeout;
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25 u8 uart_id;
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26 u8 pll_config;
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27 u16 cs_ws_config;
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28 u8 clktcxo_13mhz;
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29 u8 rhea_cntl;
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30 u16 chksum_cmd;
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31 u16 chksum_accum;
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32 u16 pad2;
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33 u32 branch_addr;
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34 };
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35
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36 #endif /* include guard */