Marius Strobl 31a2c906d7 - Prepend the device description with "AT91" to reflect its nature. [1] ... - Move DMA tag and map creature to at91_spi_activate() where the other resource allocation also lives. [1] - Flesh out at91_spi_deactivate(). [1] - Work around the "Software Reset must be Written Twice" erratum. - For now, run the bus at the slowest speed possible in order to work around data corruption on transit even seen with 9 MHz on ETHERNUT5 (15 MHz maximum) and AT45DB321D (20 MHz maximum). This also serves as a poor man's work-around for the "NPCSx rises if no data data is to be transmitted" erratum of RM9200. Being able to use the appropriate bus speed would require: 1) Adding a proper work-around for the RM9200 bug consisting of taking the chip select control away from the SPI peripheral and managing it directly as a GPIO line. 2) Taking the maximum frequencies supported by the actual board and the slave devices into account and basing the whole thing on the master clock instead of hardcoding a divisor as previously done. 3) Fixing the above mentioned data corruption. - KASSERT that TX/RX command and data sizes match on transfers. - Introduce a mutex ensuring that only one child device is running a SPI transfer at a time. [1] - Add preliminary, #ifdef'ed out support for setting the chip select. [1] - Use the RX instead of the TX commando size when setting up the RX side of a transfer. - For controllers having SPI_SR_TXEMPTY, i.e. !RM9200, also wait for the completion of the TX part of transfers before stopping the whole thing again. - Use DEVMETHOD_END. [1] - Use NULL instead of 0 for pointers. [1, partially] Additional testing by: Ian Lepore Submitted by: Ian Lepore [1] MFC after: 1 week		2012-06-03 00:54:10 +00:00
..
at91_aicreg.h
at91_cfata.c
at91_machdep.c	Initialize the clocks before we call cninit() so that the serial	2012-06-01 02:55:42 +00:00
at91_mci.c	Revert debug and other immature code accidentally committed in r236372.	2012-06-01 03:00:36 +00:00
at91_mcireg.h	- Add support for MCI1 revision 2xx controllers and a work-around for their	2012-04-22 00:43:32 +00:00
at91_pdcreg.h
at91_pio_rm9200.h
at91_pio_sam9g20.h
at91_pio.c	- Try to bring these files closer to style(9).	2012-04-14 11:29:32 +00:00
at91_pioreg.h	Hack to unbreak boot2 for at91rm9200 boot loader. When the at91sam	2012-05-11 14:40:25 +00:00
at91_piovar.h	- Try to bring these files closer to style(9).	2012-04-14 11:29:32 +00:00
at91_pit.c	Add support for the Atmel SAM9XE familiy of microcontrollers, which	2012-04-14 17:09:38 +00:00
at91_pitreg.h
at91_pmc.c	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
at91_pmcreg.h
at91_pmcvar.h
at91_reset.S
at91_rst.c	Add support for the Atmel SAM9XE familiy of microcontrollers, which	2012-04-14 17:09:38 +00:00
at91_rstreg.h
at91_rtc.c
at91_rtcreg.h
at91_spi.c	- Prepend the device description with "AT91" to reflect its nature. [1]	2012-06-03 00:54:10 +00:00
at91_spireg.h	- Prepend the device description with "AT91" to reflect its nature. [1]	2012-06-03 00:54:10 +00:00
at91_ssc.c
at91_sscreg.h
at91_st.c
at91_streg.h
at91_twi.c	Generate an obviously missing STOP when having finished transmitting data.	2012-04-14 17:27:34 +00:00
at91_twiio.h
at91_twireg.h	Add support for the Atmel SAM9XE familiy of microcontrollers, which	2012-04-14 17:09:38 +00:00
at91_usartreg.h
at91_wdt.c	Add support for the Atmel SAM9XE familiy of microcontrollers, which	2012-04-14 17:09:38 +00:00
at91_wdtreg.h
at91.c	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
at91board.h
at91reg.h	Revert debug and other immature code accidentally committed in r236372.	2012-06-01 03:00:36 +00:00
at91rm92reg.h	Revert debug and other immature code accidentally committed in r236372.	2012-06-01 03:00:36 +00:00
at91rm9200.c
at91sam9g20.c
at91sam9g20reg.h	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
at91sam9260.c	Add support for the Atmel SAM9XE familiy of microcontrollers, which	2012-04-14 17:09:38 +00:00
at91sam9260reg.h	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
at91var.h	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
board_bwct.c
board_ethernut5.c	Add glue/support for the SAM9XE512-based Ethernut 5 boards. Currently,	2012-05-12 18:11:26 +00:00
board_hl200.c
board_hl201.c
board_kb920x.c
board_qila9g20.c
board_sam9g20ek.c	Fix comment about what board this is really for left over from early	2012-05-02 18:41:58 +00:00
board_tsc4370.c
files.at91
files.at91sam9	Revert debug and other immature code accidentally committed in r236372.	2012-06-01 03:00:36 +00:00
hints.at91rm9200
hints.at91sam9261
if_ate.c	Add support for the Atmel SAM9XE familiy of microcontrollers, which	2012-04-14 17:09:38 +00:00
if_atereg.h
if_macb.c
if_macbreg.h
if_macbvar.h
std.at91
std.at91sam9	Revert debug and other immature code accidentally committed in r236372.	2012-06-01 03:00:36 +00:00
std.bwct
std.ethernut5	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
std.hl200	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
std.hl201	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
std.kb920x	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
std.qila9g20	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
std.sam9g20ek	Compute the master clock frequency, so we no longer need to have it	2012-05-29 03:23:18 +00:00
std.tsc4370
uart_bus_at91usart.c
uart_cpu_at91rm9200usart.c
uart_dev_at91usart.c	- Add missing locking in at91_usart_getc().	2012-05-01 20:42:03 +00:00