diff options
Diffstat (limited to 'src/target/event/eir-sam7se512_reset.script')
| -rw-r--r-- | src/target/event/eir-sam7se512_reset.script | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/src/target/event/eir-sam7se512_reset.script b/src/target/event/eir-sam7se512_reset.script new file mode 100644 index 00000000..8a78532a --- /dev/null +++ b/src/target/event/eir-sam7se512_reset.script @@ -0,0 +1,87 @@ +# WDT_MR, disable watchdog +mww 0xFFFFFD44 0x00008000 + +# RSTC_MR, enable user reset +mww 0xfffffd08 0xa5000001 + +# CKGR_MOR +mww 0xFFFFFC20 0x00000601 +sleep 10 + +# CKGR_PLLR +mww 0xFFFFFC2C 0x00481c0e +sleep 10 + +# PMC_MCKR +mww 0xFFFFFC30 0x00000007 +sleep 10 + +# PMC_IER +mww 0xFFFFFF60 0x00480100 + +# +# Enable SDRAM interface. +# + +# Enable SDRAM control at PIO A. +mww 0xfffff474 0x3f800000 # PIO_BSR_OFF +mww 0xfffff404 0x3f800000 # PIO_PDR_OFF + +# Enable address bus (A0, A2-A11, A13-A17) at PIO B +mww 0xfffff674 0x0003effd # PIO_BSR_OFF +mww 0xfffff604 0x0003effd # PIO_PDR_OFF + +# Enable 16 bit data bus at PIO C +mww 0xfffff870 0x0000ffff # PIO_ASR_OFF +mww 0xfffff804 0x0000ffff # PIO_PDR_OFF + +# Enable SDRAM chip select +mww 0xffffff80 0x00000002 # EBI_CSA_OFF + +# Set SDRAM characteristics in configuration register. +# Hard coded values for MT48LC32M16A2 with 48MHz CPU. +mww 0xffffffb8 0x2192215a # SDRAMC_CR_OFF +sleep 10 + +# Issue 16 bit SDRAM command: NOP +mww 0xffffffb0 0x00000011 # SDRAMC_MR_OFF +mww 0x20000000 0x00000000 + +# Issue 16 bit SDRAM command: Precharge all +mww 0xffffffb0 0x00000012 # SDRAMC_MR_OFF +mww 0x20000000 0x00000000 + +# Issue 8 auto-refresh cycles +mww 0xffffffb0 0x00000014 # SDRAMC_MR_OFF +mww 0x20000000 0x00000000 +mww 0xffffffb0 0x00000014 # SDRAMC_MR_OFF +mww 0x20000000 0x00000000 +mww 0xffffffb0 0x00000014 # SDRAMC_MR_OFF +mww 0x20000000 0x00000000 +mww 0xffffffb0 0x00000014 # SDRAMC_MR_OFF +mww 0x20000000 0x00000000 +mww 0xffffffb0 0x00000014 # SDRAMC_MR_OFF +mww 0x20000000 0x00000000 +mww 0xffffffb0 0x00000014 # SDRAMC_MR_OFF +mww 0x20000000 0x00000000 +mww 0xffffffb0 0x00000014 # SDRAMC_MR_OFF +mww 0x20000000 0x00000000 +mww 0xffffffb0 0x00000014 # SDRAMC_MR_OFF +mww 0x20000000 0x00000000 + +# Issue 16 bit SDRAM command: Set mode register +mww 0xffffffb0 0x00000013 # SDRAMC_MR_OFF +mww 0x20000014 0xcafedede + +# Set refresh rate count ??? +mww 0xffffffb4 0x00000013 # SDRAMC_TR_OFF + +# Issue 16 bit SDRAM command: Normal mode +mww 0xffffffb0 0x00000010 # SDRAMC_MR_OFF +mww 0x20000000 0x00000180 + +# +# Enable external reset key. +# +mww 0xfffffd08 0xa5000001 + |