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Remove 512k support, fix flash waitstates

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512k chip support isn't complete anyway and the incorrect clock would've
ended up destroying Flash anyway. The 256k waitstates were set to 0,
which is outside the spec. Set them to 1, which is allowed.
This commit is contained in:
marcansoft
2010-03-03 13:33:24 +00:00
parent 928727a45b
commit 24b182d01b
1 changed files with 3 additions and 13 deletions
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16
bootrom/bootrom.c
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@@ -256,19 +256,9 @@ void BootROM(void)
LED_B_OFF();
LED_A_OFF();
// if 512K FLASH part - TODO make some defines :)
if ((AT91C_BASE_DBGU->DBGU_CIDR & 0xf00) == 0xa00) {
AT91C_BASE_EFC0->EFC_FMR =
MC_FLASH_MODE_FLASH_WAIT_STATES(1) |
MC_FLASH_MODE_MASTER_CLK_IN_MHZ(0x48);
AT91C_BASE_EFC1->EFC_FMR =
MC_FLASH_MODE_FLASH_WAIT_STATES(1) |
MC_FLASH_MODE_MASTER_CLK_IN_MHZ(0x48);
} else {
AT91C_BASE_EFC0->EFC_FMR =
MC_FLASH_MODE_FLASH_WAIT_STATES(0) |
MC_FLASH_MODE_MASTER_CLK_IN_MHZ(48);
}
AT91C_BASE_EFC0->EFC_FMR =
MC_FLASH_MODE_FLASH_WAIT_STATES(1) |
MC_FLASH_MODE_MASTER_CLK_IN_MHZ(48);
// Initialize all system clocks
ConfigClocks();