at91: add chip register definition and generic init support
for - pio - pmc - rstc - wdt - sdramc - smc Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD
Øyvind Harboe
parent
28e6dcee85
commit
ba71e8c521
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@ -0,0 +1,29 @@
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set PIO_PER 0x00 ;# Enable Register
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set PIO_PDR 0x04 ;# Disable Register
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set PIO_PSR 0x08 ;# Status Register
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set PIO_OER 0x10 ;# Output Enable Register
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set PIO_ODR 0x14 ;# Output Disable Register
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set PIO_OSR 0x18 ;# Output Status Register
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set PIO_IFER 0x20 ;# Glitch Input Filter Enable
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set PIO_IFDR 0x24 ;# Glitch Input Filter Disable
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set PIO_IFSR 0x28 ;# Glitch Input Filter Status
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set PIO_SODR 0x30 ;# Set Output Data Register
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set PIO_CODR 0x34 ;# Clear Output Data Register
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set PIO_ODSR 0x38 ;# Output Data Status Register
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set PIO_PDSR 0x3c ;# Pin Data Status Register
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set PIO_IER 0x40 ;# Interrupt Enable Register
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set PIO_IDR 0x44 ;# Interrupt Disable Register
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set PIO_IMR 0x48 ;# Interrupt Mask Register
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set PIO_ISR 0x4c ;# Interrupt Status Register
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set PIO_MDER 0x50 ;# Multi-driver Enable Register
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set PIO_MDDR 0x54 ;# Multi-driver Disable Register
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set PIO_MDSR 0x58 ;# Multi-driver Status Register
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set PIO_PUDR 0x60 ;# Pull-up Disable Register
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set PIO_PUER 0x64 ;# Pull-up Enable Register
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set PIO_PUSR 0x68 ;# Pull-up Status Register
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set PIO_ASR 0x70 ;# Peripheral A Select Register
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set PIO_BSR 0x74 ;# Peripheral B Select Register
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set PIO_ABSR 0x78 ;# AB Status Register
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set PIO_OWER 0xa0 ;# Output Write Enable Register
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set PIO_OWDR 0xa4 ;# Output Write Disable Register
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set PIO_OWSR 0xa8 ;# Output Write Status Register
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@ -0,0 +1,113 @@
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set AT91_PMC_SCER [expr ($AT91_PMC + 0x00)] ;# System Clock Enable Register
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set AT91_PMC_SCDR [expr ($AT91_PMC + 0x04)] ;# System Clock Disable Register
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set AT91_PMC_SCSR [expr ($AT91_PMC + 0x08)] ;# System Clock Status Register
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set AT91_PMC_PCK [expr (1 << 0)] ;# Processor Clock
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set AT91RM9200_PMC_UDP [expr (1 << 1)] ;# USB Devcice Port Clock [AT91RM9200 only]
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set AT91RM9200_PMC_MCKUDP [expr (1 << 2)] ;# USB Device Port Master Clock Automatic Disable on Suspend [AT91RM9200 only]
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set AT91CAP9_PMC_DDR [expr (1 << 2)] ;# DDR Clock [CAP9 revC & some SAM9 only]
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set AT91RM9200_PMC_UHP [expr (1 << 4)] ;# USB Host Port Clock [AT91RM9200 only]
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set AT91SAM926x_PMC_UHP [expr (1 << 6)] ;# USB Host Port Clock [AT91SAM926x only]
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set AT91CAP9_PMC_UHP [expr (1 << 6)] ;# USB Host Port Clock [AT91CAP9 only]
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set AT91SAM926x_PMC_UDP [expr (1 << 7)] ;# USB Devcice Port Clock [AT91SAM926x only]
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set AT91_PMC_PCK0 [expr (1 << 8)] ;# Programmable Clock 0
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set AT91_PMC_PCK1 [expr (1 << 9)] ;# Programmable Clock 1
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set AT91_PMC_PCK2 [expr (1 << 10)] ;# Programmable Clock 2
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set AT91_PMC_PCK3 [expr (1 << 11)] ;# Programmable Clock 3
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set AT91_PMC_HCK0 [expr (1 << 16)] ;# AHB Clock (USB host) [AT91SAM9261 only]
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set AT91_PMC_HCK1 [expr (1 << 17)] ;# AHB Clock (LCD) [AT91SAM9261 only]
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set AT91_PMC_PCER [expr ($AT91_PMC + 0x10)] ;# Peripheral Clock Enable Register
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set AT91_PMC_PCDR [expr ($AT91_PMC + 0x14)] ;# Peripheral Clock Disable Register
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set AT91_PMC_PCSR [expr ($AT91_PMC + 0x18)] ;# Peripheral Clock Status Register
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set AT91_CKGR_UCKR [expr ($AT91_PMC + 0x1C)] ;# UTMI Clock Register [some SAM9, CAP9]
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set AT91_PMC_UPLLEN [expr (1 << 16)] ;# UTMI PLL Enable
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set AT91_PMC_UPLLCOUNT [expr (0xf << 20)] ;# UTMI PLL Start-up Time
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set AT91_PMC_BIASEN [expr (1 << 24)] ;# UTMI BIAS Enable
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set AT91_PMC_BIASCOUNT [expr (0xf << 28)] ;# UTMI BIAS Start-up Time
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set AT91_CKGR_MOR [expr ($AT91_PMC + 0x20)] ;# Main Oscillator Register [not on SAM9RL]
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set AT91_PMC_MOSCEN [expr (1 << 0)] ;# Main Oscillator Enable
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set AT91_PMC_OSCBYPASS [expr (1 << 1)] ;# Oscillator Bypass [SAM9x, CAP9]
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set AT91_PMC_OSCOUNT [expr (0xff << 8)] ;# Main Oscillator Start-up Time
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set AT91_CKGR_MCFR [expr ($AT91_PMC + 0x24)] ;# Main Clock Frequency Register
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set AT91_PMC_MAINF [expr (0xffff << 0)] ;# Main Clock Frequency
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set AT91_PMC_MAINRDY [expr (1 << 16)] ;# Main Clock Ready
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set AT91_CKGR_PLLAR [expr ($AT91_PMC + 0x28)] ;# PLL A Register
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set AT91_CKGR_PLLBR [expr ($AT91_PMC + 0x2c)] ;# PLL B Register
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set AT91_PMC_DIV [expr (0xff << 0)] ;# Divider
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set AT91_PMC_PLLCOUNT [expr (0x3f << 8)] ;# PLL Counter
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set AT91_PMC_OUT [expr (3 << 14)] ;# PLL Clock Frequency Range
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set AT91_PMC_MUL [expr (0x7ff << 16)] ;# PLL Multiplier
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set AT91_PMC_USBDIV [expr (3 << 28)] ;# USB Divisor (PLLB only)
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set AT91_PMC_USBDIV_1 [expr (0 << 28)]
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set AT91_PMC_USBDIV_2 [expr (1 << 28)]
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set AT91_PMC_USBDIV_4 [expr (2 << 28)]
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set AT91_PMC_USB96M [expr (1 << 28)] ;# Divider by 2 Enable (PLLB only)
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set AT91_PMC_PLLA_WR_ERRATA [expr (1 << 29)] ;# Bit 29 must always be set to 1 when programming the CKGR_PLLAR register
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set AT91_PMC_MCKR [expr ($AT91_PMC + 0x30)] ;# Master Clock Register
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set AT91_PMC_CSS [expr (3 << 0)] ;# Master Clock Selection
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set AT91_PMC_CSS_SLOW [expr (0 << 0)]
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set AT91_PMC_CSS_MAIN [expr (1 << 0)]
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set AT91_PMC_CSS_PLLA [expr (2 << 0)]
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set AT91_PMC_CSS_PLLB [expr (3 << 0)]
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set AT91_PMC_CSS_UPLL [expr (3 << 0)] ;# [some SAM9 only]
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set AT91_PMC_PRES [expr (7 << 2)] ;# Master Clock Prescaler
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set AT91_PMC_PRES_1 [expr (0 << 2)]
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set AT91_PMC_PRES_2 [expr (1 << 2)]
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set AT91_PMC_PRES_4 [expr (2 << 2)]
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set AT91_PMC_PRES_8 [expr (3 << 2)]
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set AT91_PMC_PRES_16 [expr (4 << 2)]
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set AT91_PMC_PRES_32 [expr (5 << 2)]
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set AT91_PMC_PRES_64 [expr (6 << 2)]
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set AT91_PMC_MDIV [expr (3 << 8)] ;# Master Clock Division
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set AT91RM9200_PMC_MDIV_1 [expr (0 << 8)] ;# [AT91RM9200 only]
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set AT91RM9200_PMC_MDIV_2 [expr (1 << 8)]
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set AT91RM9200_PMC_MDIV_3 [expr (2 << 8)]
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set AT91RM9200_PMC_MDIV_4 [expr (3 << 8)]
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set AT91SAM9_PMC_MDIV_1 [expr (0 << 8)] ;# [SAM9,CAP9 only]
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set AT91SAM9_PMC_MDIV_2 [expr (1 << 8)]
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set AT91SAM9_PMC_MDIV_4 [expr (2 << 8)]
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set AT91SAM9_PMC_MDIV_6 [expr (3 << 8)] ;# [some SAM9 only]
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set AT91SAM9_PMC_MDIV_3 [expr (3 << 8)] ;# [some SAM9 only]
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set AT91_PMC_PDIV [expr (1 << 12)] ;# Processor Clock Division [some SAM9 only]
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set AT91_PMC_PDIV_1 [expr (0 << 12)]
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set AT91_PMC_PDIV_2 [expr (1 << 12)]
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set AT91_PMC_PLLADIV2 [expr (1 << 12)] ;# PLLA divisor by 2 [some SAM9 only]
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set AT91_PMC_PLLADIV2_OFF [expr (0 << 12)]
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set AT91_PMC_PLLADIV2_ON [expr (1 << 12)]
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set AT91_PMC_USB [expr ($AT91_PMC + 0x38)] ;# USB Clock Register [some SAM9 only]
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set AT91_PMC_USBS [expr (0x1 << 0)] ;# USB OHCI Input clock selection
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set AT91_PMC_USBS_PLLA [expr (0 << 0)]
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set AT91_PMC_USBS_UPLL [expr (1 << 0)]
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set AT91_PMC_OHCIUSBDIV [expr (0xF << 8)] ;# Divider for USB OHCI Clock
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;# set AT91_PMC_PCKR(n) [expr ($AT91_PMC + 0x40 + ((n) * 4))] ;# Programmable Clock 0-N Registers
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set AT91_PMC_CSSMCK [expr (0x1 << 8)] ;# CSS or Master Clock Selection
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set AT91_PMC_CSSMCK_CSS [expr (0 << 8)]
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set AT91_PMC_CSSMCK_MCK [expr (1 << 8)]
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set AT91_PMC_IER [expr ($AT91_PMC + 0x60)] ;# Interrupt Enable Register
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set AT91_PMC_IDR [expr ($AT91_PMC + 0x64)] ;# Interrupt Disable Register
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set AT91_PMC_SR [expr ($AT91_PMC + 0x68)] ;# Status Register
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set AT91_PMC_MOSCS [expr (1 << 0)] ;# MOSCS Flag
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set AT91_PMC_LOCKA [expr (1 << 1)] ;# PLLA Lock
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set AT91_PMC_LOCKB [expr (1 << 2)] ;# PLLB Lock
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set AT91_PMC_MCKRDY [expr (1 << 3)] ;# Master Clock
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set AT91_PMC_LOCKU [expr (1 << 6)] ;# UPLL Lock [some SAM9, AT91CAP9 only]
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set AT91_PMC_OSCSEL [expr (1 << 7)] ;# Slow Clock Oscillator [AT91CAP9 revC only]
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set AT91_PMC_PCK0RDY [expr (1 << 8)] ;# Programmable Clock 0
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set AT91_PMC_PCK1RDY [expr (1 << 9)] ;# Programmable Clock 1
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set AT91_PMC_PCK2RDY [expr (1 << 10)] ;# Programmable Clock 2
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set AT91_PMC_PCK3RDY [expr (1 << 11)] ;# Programmable Clock 3
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set AT91_PMC_IMR [expr ($AT91_PMC + 0x6c)] ;# Interrupt Mask Register
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set AT91_PMC_PROT [expr ($AT91_PMC + 0xe4)] ;# Protect Register [AT91CAP9 revC only]
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set AT91_PMC_PROTKEY 0x504d4301 ;# Activation Code
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set AT91_PMC_VER [expr ($AT91_PMC + 0xfc)] ;# PMC Module Version [AT91CAP9 only]
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@ -0,0 +1,21 @@
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set AT91_RSTC_CR [expr ($AT91_RSTC + 0x00)] ;# Reset Controller Control Register
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set AT91_RSTC_PROCRST [expr (1 << 0)] ;# Processor Reset
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set AT91_RSTC_PERRST [expr (1 << 2)] ;# Peripheral Reset
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set AT91_RSTC_EXTRST [expr (1 << 3)] ;# External Reset
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set AT91_RSTC_KEY [expr (0xa5 << 24)] ;# KEY Password
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set AT91_RSTC_SR [expr ($AT91_RSTC + 0x04)] ;# Reset Controller Status Register
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set AT91_RSTC_URSTS [expr (1 << 0)] ;# User Reset Status
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set AT91_RSTC_RSTTYP [expr (7 << 8)] ;# Reset Type
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set AT91_RSTC_RSTTYP_GENERAL [expr (0 << 8)]
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set AT91_RSTC_RSTTYP_WAKEUP [expr (1 << 8)]
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set AT91_RSTC_RSTTYP_WATCHDOG [expr (2 << 8)]
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set AT91_RSTC_RSTTYP_SOFTWARE [expr (3 << 8)]
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set AT91_RSTC_RSTTYP_USER [expr (4 << 8)]
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set AT91_RSTC_NRSTL [expr (1 << 16)] ;# NRST Pin Level
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set AT91_RSTC_SRCMP [expr (1 << 17)] ;# Software Reset Command in Progress
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set AT91_RSTC_MR [expr ($AT91_RSTC + 0x08)] ;# Reset Controller Mode Register
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set AT91_RSTC_URSTEN [expr (1 << 0)] ;# User Reset Enable
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set AT91_RSTC_URSTIEN [expr (1 << 4)] ;# User Reset Interrupt Enable
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set AT91_RSTC_ERSTL [expr (0xf << 8)] ;# External Reset Length
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@ -0,0 +1,17 @@
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set AT91_WDT_CR [expr ($AT91_WDT + 0x00)] ;# Watchdog Control Register
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set AT91_WDT_WDRSTT [expr (1 << 0)] ;# Restart
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set AT91_WDT_KEY [expr (0xa5 << 24)] ;# KEY Password
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set AT91_WDT_MR [expr ($AT91_WDT + 0x04)] ;# Watchdog Mode Register
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set AT91_WDT_WDV [expr (0xfff << 0)] ;# Counter Value
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set AT91_WDT_WDFIEN [expr (1 << 12)] ;# Fault Interrupt Enable
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set AT91_WDT_WDRSTEN [expr (1 << 13)] ;# Reset Processor
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set AT91_WDT_WDRPROC [expr (1 << 14)] ;# Timer Restart
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set AT91_WDT_WDDIS [expr (1 << 15)] ;# Watchdog Disable
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set AT91_WDT_WDD [expr (0xfff << 16)] ;# Delta Value
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set AT91_WDT_WDDBGHLT [expr (1 << 28)] ;# Debug Halt
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set AT91_WDT_WDIDLEHLT [expr (1 << 29)] ;# Idle Halt
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set AT91_WDT_SR [expr ($AT91_WDT + 0x08)] ;# Watchdog Status Register
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set AT91_WDT_WDUNF [expr (1 << 0)] ;# Watchdog Underflow
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set AT91_WDT_WDERR [expr (1 << 1)] ;# Watchdog Error
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@ -0,0 +1,86 @@
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uplevel #0 [list source [find chip/atmel/at91/at91sam9_sdramc.cfg]]
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uplevel #0 [list source [find chip/atmel/at91/at91_pmc.cfg]]
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uplevel #0 [list source [find chip/atmel/at91/at91_pio.cfg]]
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uplevel #0 [list source [find chip/atmel/at91/at91_rstc.cfg]]
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uplevel #0 [list source [find chip/atmel/at91/at91_wdt.cfg]]
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proc at91sam9_reset_start { } {
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arm7_9 fast_memory_access disable
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jtag_rclk 8
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halt
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wait_halt 10000
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set rstc_mr_val [expr $::AT91_RSTC_KEY]
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set rstc_mr_val [expr ($rstc_mr_val | (5 << 8))]
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set rstc_mr_val [expr ($rstc_mr_val | $::AT91_RSTC_URSTEN)]
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mww $::AT91_RSTC_MR $rstc_mr_val ;# RSTC_MR : enable user reset.
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}
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proc at91sam9_reset_init { config } {
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mww $::AT91_WDT_MR $config(wdt_mr_val) ;# disable watchdog
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set ckgr_mor [expr ($::AT91_PMC_MOSCEN | (255 << 8))]
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mww $::AT91_CKGR_MOR $ckgr_mor ;# CKGR_MOR - enable main osc.
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while { [expr [mrw $::AT91_PMC_SR] & $::AT91_PMC_MOSCS] != $::AT91_PMC_MOSCS } { sleep 1 }
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set pllar_val [expr $::AT91_PMC_PLLA_WR_ERRATA] ;# Bit 29 must be 1 when prog
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set pllar_val [expr ($pllar_val | $::AT91_PMC_OUT)]
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set pllar_val [expr ($pllar_val | $::AT91_PMC_PLLCOUNT)]
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set pllar_val [expr ($pllar_val | ($config(master_pll_mul) - 1) << 16)]
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set pllar_val [expr ($pllar_val | $config(master_pll_div))]
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mww $::AT91_CKGR_PLLAR $pllar_val ;# CKGR_PLLA - (18.432MHz/13)*141 = 199.9 MHz
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while { [expr [mrw $::AT91_PMC_SR] & $::AT91_PMC_LOCKA] != $::AT91_PMC_LOCKA } { sleep 1 }
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;# PCK/2 = MCK Master Clock from PLLA
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set mckr_val [expr $::AT91_PMC_CSS_PLLA]
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set mckr_val [expr ($mckr_val | $::AT91_PMC_PRES_1)]
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set mckr_val [expr ($mckr_val | $::AT91SAM9_PMC_MDIV_2)]
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set mckr_val [expr ($mckr_val | $::AT91_PMC_PDIV_1)]
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mww $::AT91_PMC_MCKR $mckr_val ;# PMC_MCKR (MCLK: 0x102 - (CLK/2)MHZ, 0x202 - (CLK/3)MHz)
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while { [expr [mrw $::AT91_PMC_SR] & $::AT91_PMC_MCKRDY] != $::AT91_PMC_MCKRDY } { sleep 1 }
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## switch JTAG clock to highseepd clock
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jtag_rclk 0
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arm7_9 dcc_downloads enable ;# Enable faster DCC downloads
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arm7_9 fast_memory_access enable
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set rstc_mr_val [expr ($::AT91_RSTC_KEY)]
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set rstc_mr_val [expr ($rstc_mr_val | $::AT91_RSTC_URSTEN)]
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mww $::AT91_RSTC_MR $rstc_mr_val ;# user reset enable
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set pdr_addr [expr ($::AT91_PIOC + $::PIO_PDR)]
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mww $pdr_addr 0xffff0000 ;# define PDC[31:16] as DATA[31:16]
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set pudr_addr [expr ($::AT91_PIOC + $::PIO_PUDR)]
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mww $pudr_addr 0xffff0000 ;# no pull-up for D[31:16]
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mww $config(matrix_ebicsa_addr) $config(matrix_ebicsa_val)
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mww $::AT91_SDRAMC_MR $::AT91_SDRAMC_MODE_NORMAL ;# SDRAMC_MR Mode register
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mww $::AT91_SDRAMC_TR $config(sdram_tr_val) ;# SDRAMC_TR - Refresh Timer register
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mww $::AT91_SDRAMC_CR $config(sdram_cr_val) ;# SDRAMC_CR - Configuration register
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mww $::AT91_SDRAMC_MDR $::AT91_SDRAMC_MD_SDRAM ;# Memory Device Register -> SDRAM
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mww $::AT91_SDRAMC_MR $::AT91_SDRAMC_MODE_PRECHARGE ;# SDRAMC_MR
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $::AT91_SDRAMC_MR $::AT91_SDRAMC_MODE_REFRESH ;# SDRC_MR
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $::AT91_SDRAMC_MR $::AT91_SDRAMC_MODE_LMR ;# SDRC_MR
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $::AT91_SDRAMC_MR $::AT91_SDRAMC_MODE_NORMAL ;# SDRC_MR
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $::AT91_SDRAMC_TR 1200 ;# SDRAM_TR
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mww $config(sdram_base) 0 ;# SDRAM_BASE
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mww $::AT91_MATRIX 0xf ;# MATRIX_MCFG - REMAP all masters
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}
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@ -0,0 +1,66 @@
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# SDRAM Controller (SDRAMC) registers
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set AT91_SDRAMC_MR [expr ($AT91_SDRAMC + 0x00)] ;# SDRAM Controller Mode Register
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set AT91_SDRAMC_MODE [expr (0xf << 0)] ;# Command Mode
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set AT91_SDRAMC_MODE_NORMAL 0
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||||
set AT91_SDRAMC_MODE_NOP 1
|
||||
set AT91_SDRAMC_MODE_PRECHARGE 2
|
||||
set AT91_SDRAMC_MODE_LMR 3
|
||||
set AT91_SDRAMC_MODE_REFRESH 4
|
||||
set AT91_SDRAMC_MODE_EXT_LMR 5
|
||||
set AT91_SDRAMC_MODE_DEEP 6
|
||||
|
||||
set AT91_SDRAMC_TR [expr ($AT91_SDRAMC + 0x04)] ;# SDRAM Controller Refresh Timer Register
|
||||
set AT91_SDRAMC_COUNT [expr (0xfff << 0)] ;# Refresh Timer Counter
|
||||
|
||||
set AT91_SDRAMC_CR [expr ($AT91_SDRAMC + 0x08)] ;# SDRAM Controller Configuration Register
|
||||
set AT91_SDRAMC_NC [expr (3 << 0)] ;# Number of Column Bits
|
||||
set AT91_SDRAMC_NC_8 [expr (0 << 0)]
|
||||
set AT91_SDRAMC_NC_9 [expr (1 << 0)]
|
||||
set AT91_SDRAMC_NC_10 [expr (2 << 0)]
|
||||
set AT91_SDRAMC_NC_11 [expr (3 << 0)]
|
||||
set AT91_SDRAMC_NR [expr (3 << 2)] ;# Number of Row Bits
|
||||
set AT91_SDRAMC_NR_11 [expr (0 << 2)]
|
||||
set AT91_SDRAMC_NR_12 [expr (1 << 2)]
|
||||
set AT91_SDRAMC_NR_13 [expr (2 << 2)]
|
||||
set AT91_SDRAMC_NB [expr (1 << 4)] ;# Number of Banks
|
||||
set AT91_SDRAMC_NB_2 [expr (0 << 4)]
|
||||
set AT91_SDRAMC_NB_4 [expr (1 << 4)]
|
||||
set AT91_SDRAMC_CAS [expr (3 << 5)] ;# CAS Latency
|
||||
set AT91_SDRAMC_CAS_1 [expr (1 << 5)]
|
||||
set AT91_SDRAMC_CAS_2 [expr (2 << 5)]
|
||||
set AT91_SDRAMC_CAS_3 [expr (3 << 5)]
|
||||
set AT91_SDRAMC_DBW [expr (1 << 7)] ;# Data Bus Width
|
||||
set AT91_SDRAMC_DBW_32 [expr (0 << 7)]
|
||||
set AT91_SDRAMC_DBW_16 [expr (1 << 7)]
|
||||
set AT91_SDRAMC_TWR [expr (0xf << 8)] ;# Write Recovery Delay
|
||||
set AT91_SDRAMC_TRC [expr (0xf << 12)] ;# Row Cycle Delay
|
||||
set AT91_SDRAMC_TRP [expr (0xf << 16)] ;# Row Precharge Delay
|
||||
set AT91_SDRAMC_TRCD [expr (0xf << 20)] ;# Row to Column Delay
|
||||
set AT91_SDRAMC_TRAS [expr (0xf << 24)] ;# Active to Precharge Delay
|
||||
set AT91_SDRAMC_TXSR [expr (0xf << 28)] ;# Exit Self Refresh to Active Delay
|
||||
|
||||
set AT91_SDRAMC_LPR [expr ($AT91_SDRAMC + 0x10)] ;# SDRAM Controller Low Power Register
|
||||
set AT91_SDRAMC_LPCB [expr (3 << 0)] ;# Low-power Configurations
|
||||
set AT91_SDRAMC_LPCB_DISABLE 0
|
||||
set AT91_SDRAMC_LPCB_SELF_REFRESH 1
|
||||
set AT91_SDRAMC_LPCB_POWER_DOWN 2
|
||||
set AT91_SDRAMC_LPCB_DEEP_POWER_DOWN 3
|
||||
set AT91_SDRAMC_PASR [expr (7 << 4)] ;# Partial Array Self Refresh
|
||||
set AT91_SDRAMC_TCSR [expr (3 << 8)] ;# Temperature Compensated Self Refresh
|
||||
set AT91_SDRAMC_DS [expr (3 << 10)] ;# Drive Strength
|
||||
set AT91_SDRAMC_TIMEOUT [expr (3 << 12)] ;# Time to define when Low Power Mode is enabled
|
||||
set AT91_SDRAMC_TIMEOUT_0_CLK_CYCLES [expr (0 << 12)]
|
||||
set AT91_SDRAMC_TIMEOUT_64_CLK_CYCLES [expr (1 << 12)]
|
||||
set AT91_SDRAMC_TIMEOUT_128_CLK_CYCLES [expr (2 << 12)]
|
||||
|
||||
set AT91_SDRAMC_IER [expr ($AT91_SDRAMC + 0x14)] ;# SDRAM Controller Interrupt Enable Register
|
||||
set AT91_SDRAMC_IDR [expr ($AT91_SDRAMC + 0x18)] ;# SDRAM Controller Interrupt Disable Register
|
||||
set AT91_SDRAMC_IMR [expr ($AT91_SDRAMC + 0x1C)] ;# SDRAM Controller Interrupt Mask Register
|
||||
set AT91_SDRAMC_ISR [expr ($AT91_SDRAMC + 0x20)] ;# SDRAM Controller Interrupt Status Register
|
||||
set AT91_SDRAMC_RES [expr (1 << 0)] ;# Refresh Error Status
|
||||
|
||||
set AT91_SDRAMC_MDR [expr ($AT91_SDRAMC + 0x24)] ;# SDRAM Memory Device Register
|
||||
set AT91_SDRAMC_MD [expr (3 << 0)] ;# Memory Device Type
|
||||
set AT91_SDRAMC_MD_SDRAM 0
|
||||
set AT91_SDRAMC_MD_LOW_POWER_SDRAM 1
|
||||
|
|
@ -0,0 +1,20 @@
|
|||
set AT91_SMC_READMODE [expr (1 << 0)] ;# Read Mode
|
||||
set AT91_SMC_WRITEMODE [expr (1 << 1)] ;# Write Mode
|
||||
set AT91_SMC_EXNWMODE [expr (3 << 4)] ;# NWAIT Mode
|
||||
set AT91_SMC_EXNWMODE_DISABLE [expr (0 << 4)]
|
||||
set AT91_SMC_EXNWMODE_FROZEN [expr (2 << 4)]
|
||||
set AT91_SMC_EXNWMODE_READY [expr (3 << 4)]
|
||||
set AT91_SMC_BAT [expr (1 << 8)] ;# Byte Access Type
|
||||
set AT91_SMC_BAT_SELECT [expr (0 << 8)]
|
||||
set AT91_SMC_BAT_WRITE [expr (1 << 8)]
|
||||
set AT91_SMC_DBW [expr (3 << 12)] ;# Data Bus Width */
|
||||
set AT91_SMC_DBW_8 [expr (0 << 12)]
|
||||
set AT91_SMC_DBW_16 [expr (1 << 12)]
|
||||
set AT91_SMC_DBW_32 [expr (2 << 12)]
|
||||
set AT91_SMC_TDFMODE [expr (1 << 20)] ;# TDF Optimization - Enabled
|
||||
set AT91_SMC_PMEN [expr (1 << 24)] ;# Page Mode Enabled
|
||||
set AT91_SMC_PS [expr (3 << 28)] ;# Page Size
|
||||
set AT91_SMC_PS_4 [expr (0 << 28)]
|
||||
set AT91_SMC_PS_8 [expr (1 << 28)]
|
||||
set AT91_SMC_PS_16 [expr (2 << 28)]
|
||||
set AT91_SMC_PS_32 [expr (3 << 28)]
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
# External Memory Map
|
||||
set AT91_CHIPSELECT_0 0x10000000
|
||||
set AT91_CHIPSELECT_1 0x20000000
|
||||
set AT91_CHIPSELECT_2 0x30000000
|
||||
set AT91_CHIPSELECT_3 0x40000000
|
||||
set AT91_CHIPSELECT_4 0x50000000
|
||||
set AT91_CHIPSELECT_5 0x60000000
|
||||
set AT91_CHIPSELECT_6 0x70000000
|
||||
set AT91_CHIPSELECT_7 0x80000000
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
# Setup register
|
||||
#
|
||||
# ncs_read_setup
|
||||
# nrd_setup
|
||||
# ncs_write_setup
|
||||
# set nwe_setup
|
||||
#
|
||||
#
|
||||
# Pulse register
|
||||
#
|
||||
# ncs_read_pulse
|
||||
# nrd_pulse
|
||||
# ncs_write_pulse
|
||||
# nwe_pulse
|
||||
#
|
||||
#
|
||||
# Cycle register
|
||||
#
|
||||
# read_cycle 0
|
||||
# write_cycle 0
|
||||
#
|
||||
#
|
||||
# Mode register
|
||||
#
|
||||
# mode
|
||||
# tdf_cycles
|
||||
proc sam9_smc_config { cs smc_config } {
|
||||
;# Setup Register for CS n
|
||||
set AT91_SMC_SETUP [expr ($::AT91_SMC + 0x00 + ((cs)*0x10))]
|
||||
set val [expr ($smc_config(nwe_setup) << 0)]
|
||||
set val [expr ($val | $smc_config(ncs_write_setup) << 8]
|
||||
set val [expr ($val | $smc_config(nrd_setup)) << 16]
|
||||
set val [expr ($val | $smc_config(ncs_read_setup) << 24]
|
||||
mww $AT91_SMC_SETUP $val
|
||||
|
||||
;# Pulse Register for CS n
|
||||
set AT91_SMC_PULSE [expr ($::AT91_SMC + 0x04 + ((cs)*0x10))]
|
||||
set val [expr ($smc_config(nwe_pulse) << 0)]
|
||||
set val [expr ($val | $smc_config(ncs_write_pulse) << 8]
|
||||
set val [expr ($val | $smc_config(nrd_pulse) << 16]
|
||||
set val [expr ($val | $smc_config(ncs_read_pulse) << 24]
|
||||
mww $AT91_SMC_PULSE $val
|
||||
|
||||
;# Cycle Register for CS n
|
||||
set AT91_SMC_CYCLE [expr ($::AT91_SMC + 0x08 + ((cs)*0x10))]
|
||||
set val [expr ($smc_config(write_cycle) << 0)]
|
||||
set val [expr ($val | $smc_config(read_cycle) << 16]
|
||||
mww $AT91_SMC_CYCLE $val
|
||||
|
||||
;# Mode Register for CS n
|
||||
set AT91_SMC_MODE [expr ($::AT91_SMC + 0x0c + ((cs)*0x10))]
|
||||
set val [expr ($smc_config(mode) << 0)]
|
||||
set val [expr ($val | $smc_config(tdf_cycles) << 16]
|
||||
mww $AT91_SMC_MODE $val
|
||||
}
|
||||
Loading…
Reference in New Issue