diff options
author | (no author) <(no author)@6dc7ffe9-61d6-0310-9af1-9938baff3ed1> | 2006-09-09 01:08:38 +0000 |
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committer | (no author) <(no author)@6dc7ffe9-61d6-0310-9af1-9938baff3ed1> | 2006-09-09 01:08:38 +0000 |
commit | 520784c7ba6a8325e413a293ab11840d982ba87d (patch) | |
tree | 44ee93d44102d47014c6ff696ebc93e8de402e01 /openpcd/firmware/src/os/flash.c | |
parent | b0317c72667378333e1008c49559e974f3e7c15d (diff) |
- major reorganization, split source tree in
- os: core "operating system"
- pcd: PCD (reader) side
- picc: PICC (transponder) side
- rewrite linker script almost from scratch (for correct DFU operation)
git-svn-id: https://svn.openpcd.org:2342/trunk@142 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
Diffstat (limited to 'openpcd/firmware/src/os/flash.c')
-rw-r--r-- | openpcd/firmware/src/os/flash.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/openpcd/firmware/src/os/flash.c b/openpcd/firmware/src/os/flash.c new file mode 100644 index 0000000..2aaf760 --- /dev/null +++ b/openpcd/firmware/src/os/flash.c @@ -0,0 +1,45 @@ + + +#define EFCS_CMD_WRITE_PAGE 0x01 +#define EFCS_CMD_SET_LOCK_BIT 0x02 +#define EFCS_CMD_WRITE_PAGE_LOCK 0x03 +#define EFCS_CMD_CLEAR_LOCK 0x04 +#define EFCS_CMD_ERASE_ALL 0x08 +#define EFCS_CMD_SET_NVM_BIT 0x0b +#define EFCS_CMD_CLEAR_NVM_BIT 0x0d +#define EFCS_CMD_SET_SECURITY_BIT 0x0f + + +int unlock_page(u_int16_t page) +{ + AT91C_MC_FCMD_UNLOCK | AT91C_MC_CORRECT_KEY | + +} + +int flash_sector(unsigned int sector, const u_int8_t *data, unsigned int len) +{ + volatile u_int32_t *p = (volatile u_int32_t *)0; + u_int32_t *src32 = (u_int32_t *)data; + int i; + + /* hand-code memcpy because we need to make sure only 32bit accesses + * are used */ + for (i = 0; i < len/4; i++) + p[i] = src32[i]; + + AT91F_MC_EFC_PerformCmd(pmc , AT91C_MC_FCMD_START_PROG| + AT91C_MC_CORRECT_KEY | ); +} + + +void flash_init(void) +{ + unsigned int fmcn = AT91F_MC_EFC_ComputerFMCN(48000000); + + AT91F_MC_EFC_CfgModeReg(ff, fmcn << 16 | AT91C_MC_FWS_3FWS | + AT91C_MC_FRDY | AT91C_MC_LOCKE | + AT91C_MC_PROGE); + + AT91F_AIC_EnableIt(); + +} |