we have only 32MiB of sdram
by luck it was working
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
as it's handle by detecting the IP version and bus with
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
v7_mmu_cache_flush stores registers on the stack and restores
them afterwards. Additionally v7_mmu_cache_flush is called
from v7_mmu_cache_off *after* disabling the MMU. With this
the following can happen:
- v7_mmu_cache_off disables the MMU. From now on no new values
go to the data cache.
- v7_mmu_cache_off calls v7_mmu_cache_flush which in turn puts
registers on the stack. Due to the MMU being disabled they
do not go into the data cache.
- In v7_mmu_cache_flush the memory the stack is pointing to is
overwritten with the values currently being in the cache.
- v7_mmu_cache_flush restores the registers from the stack with
values from the cache and not the memory where the values have
previously been written to.
Fix this by storing the registers on the stack *before* we disable
the MMU and restore them after we have called v7_mmu_cache_flush.
This way v7_mmu_cache_flush still restores corrupt register values
for the case when the MMU has been disabled, but we will restore
correct values afterwards.
This has been first observed when switching to gcc-4.7.2 when compiling
in Thumb2 mode, but could explain earlier problems also. The result
here was that the register holding the kernel address in start_linux()
was corrupted so that the kernel could not be started.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The end of SDRAM is at 0x9fffffff, not at 0x8fffffff. This fixes starting
barebox when it is located in the second SDRAM bank.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
arch/arm/mach-at91/at91sam9g45_devices.c: In function 'at91_add_device_i2c':
arch/arm/mach-at91/at91sam9g45_devices.c:158:42: error: 'pdata_i2c' undeclared (first use in this function)
arch/arm/mach-at91/at91sam9g45_devices.c:158:42: note: each undeclared identifier is reported only once for each function it appears in
arch/arm/mach-at91/at91sam9g45_devices.c:163:8: error: expected ':' or '...' before ';' token
arch/arm/mach-at91/at91sam9g45_devices.c:166:8: error: expected ':' or '...' before ';' token
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
We now have gpio_request. When we call gpio_direction_output before
registering a led_gpio the gpio will be implicitely requested by the
gpio core. gpio_request in the led core will then fail resulting in
an unregistered LED.
Fix this by removing the call to gpio_direction_output. The LED core
will do this anyway.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The am33xx hsmmc controller is actually a omap4 type controller which
means that it has a 0x100 offset in the registers.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Only the OMAP4 has a register offset of 0x100 in the register space. Fix
this by using the device id mechanism. This became broken when the device
register convenience functions were introduced.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This will allow to dump all pin configuration in a nice table
and if the bank/pin is specified the pin details
barebox@Atmel at91sam9x5-ek:/
Pin PIOA PIOB PIOC PIOD
0: [gpio] set [periph A] [gpio] set [periph A]
1: [periph A] [periph A] [gpio] set [periph A]
2: [gpio] set [periph A] [gpio] set [periph A]
3: [gpio] set [periph A] [gpio] set [periph A]
4: [gpio] set [periph A] [gpio] set [gpio] clear
5: [gpio] set [periph A] [gpio] set [gpio] set
6: [gpio] set [periph A] [gpio] set [periph A]
7: [gpio] set [periph A] [gpio] set [periph A]
8: [gpio] set [gpio] set [gpio] set [periph A]
9: [periph A] [periph A] [gpio] set [periph A]
10: [periph A] [periph A] [gpio] set [periph A]
11: [periph A] [gpio] set [gpio] set [periph A]
12: [periph A] [gpio] set [gpio] set [periph A]
13: [periph A] [gpio] clear [gpio] set [periph A]
14: [gpio] set [gpio] clear [gpio] set [gpio] set
15: [periph A] [gpio] set [gpio] set [gpio] set
16: [periph A] [gpio] set [gpio] clear [periph A]
17: [periph A] [gpio] set [gpio] set [periph A]
18: [periph A] [gpio] set [gpio] set [periph A]
19: [periph A] [periph A] [gpio] set [gpio] set
20: [periph A] [periph A] [gpio] clear [gpio] set
21: [gpio] set [periph A] [gpio] clear [gpio] clear
22: [gpio] set [periph A] [gpio] set [periph A]
23: [gpio] set [periph A] [gpio] set [periph A]
24: [gpio] set [periph A] [gpio] set [periph A]
25: [gpio] set [periph A] [gpio] set [periph A]
26: [gpio] set [periph A] [gpio] set [periph A]
27: [gpio] clear [periph A] [gpio] set [periph A]
28: [gpio] set [periph A] [gpio] clear [periph A]
29: [gpio] set [periph A] [gpio] set [periph A]
30: [gpio] set [periph A] [gpio] set [periph A]
31: [gpio] set [periph A] [gpio] set [periph A]
barebox@Atmel at91sam9x5-ek:/
pioA27 configuration
[gpio] clear
multidrive = disable
pullup = disable
degitch = disable
debounce = disable
pulldown = enable
schmitt trigger = enable
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
to select the smc and timer for at91sam9 soc
This will allow to simplify the Makefile
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This will allow to support multiple arch
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
and then register a device
The code is take from linux
drop AT91_BASE_SYS for dbgu
factorise the soc type in the Kconfig but keep the ARCH_ so far
as the device code have the same function accross soc which for now does not
allow us to compile soc together
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
add non AT91_SYS_BASE offset base address define
This will prepare for multi arch support
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
so we can drop AT91_BASE_SYS too
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
as d1 pioB18 is used for the one wire too
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
imported from the kernel
this allow to simplify the mux implemtation and will simplify the gpio support
from bare_init or pbl
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this is the first step to prepare the switch to the gpiolib
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
so 0 is a valid gpio as cleanned in the kernel
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
switch gpio type from u8 to int in the data struct
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
MC34708 depend on I2C or SPI, so let driver depend on SPI too
and rename config option name to MFD_MC34708.
Signed-off-by: Wjatscheslaw Stoljarski <wjatscheslaw.stoljarski@kiwigrid.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Jean-Christophe PLAGNIOL-VILLARD
Sascha Hauer
Alexander Aring
Wjatscheslaw Stoljarski (Slawa)
Teresa Gámez