Commit graph

128 commits

Author SHA1 Message Date
Marek Vasut
14e26bcfa7 mxs: ssp: Pull out the SSP bus to regs conversion
Create function which converts SSP bus number to SSP register pointer.
This functionality is reimplemented multiple times in the code, thus
make one common implementation. Moreover, make it a switch(), since the
SSP ports are not mapped in such nice linear fashion on MX23, therefore
having it a switch will simplify things there.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andy Fleming <afleming@freescale.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
2013-01-21 12:05:19 +01:00
Albert ARIBAUD
96764df1b4 Merge samsung, imx, tegra into u-boot-arm/master
This commit merges branches from samsung, imx and tegra
meant to fix merge issues between u-boot/master and
u-boot-arm/master, as well as a few manual merge fixes.
2012-12-22 11:59:14 +01:00
Marek Vasut
fa5e2845a8 mxs: i2c: Implement algorithm to set up arbitrary i2c speed
This algorithm computes the values of TIMING{0,1,2} registers for the
MX28 I2C block. This algorithm was derived by using a scope, but the
result seems correct.

The resulting values programmed into the registers do not correlate
with the contents in datasheet. When using the values from the datasheet,
the I2C clock were completely wrong.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Wolfgang Denk <wd@denx.de>
2012-12-11 13:17:30 -07:00
Otavio Salvador
393ff47ba3 mxs: SPL: Generalize memory initialization
Use a generic 'dram_vals[]' array that has the full initialization
sequence and rename the initialization method so it doesn't has a
frequency on its name.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-12-07 14:50:02 +01:00
Marek Vasut
a918a53c36 mxs: Staticize SPL functions
The MXS SPL didn't mark local functions "static". Fix it. This also makes the
SPL smaller by roughly 300 bytes.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
2012-12-04 09:29:11 +01:00
Marek Vasut
1230e7bc2d mxs: Properly setup VDDD in power supply setup code
The memory setup code adjusted the VDDD voltage. Remove this adjustment
and configure the VDDD voltage correctly in the power supply setup code.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
2012-12-04 09:27:21 +01:00
Marek Vasut
77cb33bd25 mxs: Implement common function to setup VDDx
Implement common function to setup the VDDIO, VDDD and VDDA voltage.
Right now, there are two almost identical functions to setup VDDIO
and VDDD, which is prone to breakage. Pull out the differences into
constant structure and pass them as an argument to the common function.

Moreover, the function has almost identical loops for setting higher
and lower VDDx voltage. Merge these two loops.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
2012-12-04 09:26:54 +01:00
Marek Vasut
8b493a5236 common: Discard the __u_boot_cmd section
The command declaration now uses the new LG-array method to generate
list of commands. Thus the __u_boot_cmd section is now superseded and
redundant and therefore can be removed. Also, remove externed symbols
associated with this section from include/command.h .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
2012-10-22 08:29:42 -07:00
Marek Vasut
556751427b common: Add .u_boot_list into all linker files
Add section for the linker-generated lists into all possible linker
files, so that everyone can easily use these lists. This is mostly
a mechanical adjustment.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
2012-10-22 08:29:42 -07:00
Marek Vasut
320de1354f serial: mxs: spl: Remove empty serial_* functions from SPL code
Remove the empty bodies from serial_* functions from MXS SPL code.
These empty implementations are now in common/serial.c instead so
declaring them also in the SPL code would cause a colision once
serial multi is enabled unconditionally.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Stefano Babic <sbabic@denx.de>
2012-10-15 11:53:57 -07:00
Marek Vasut
d82f05fcad MX28: Fixup the ad-hoc use of DIGCTL_MICROSECONDS
Use proper struct-based access for this register in the SPL code.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <festevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
2012-09-04 11:57:57 +02:00
fabio.estevam@freescale.com
a123312f4d mxs: Convert timeout parameter to 'unsigned int'
For representing a timeout value, it makes more sense to pass it as
'unsigned int'.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
2012-09-01 14:58:30 +02:00
Otavio Salvador
72f8ebf17e mxs: Rename 'mx28_dram_init' to 'mxs_dram_init'
The DRAM initialization, after SPL has complete, is exactly the same
for all mxs SoCs so we should name it accordinly.

The following boards has been changed:

 * apx4devkit
 * m28evk
 * mx28evk
 * sc_sps_1

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
2012-09-01 14:58:28 +02:00
Otavio Salvador
89ce53ffcd mxs: Only build internal Ethernet controller for i.MX28
The internal Ethernet controller is only available on i.MX28
processors so it needs to use CONFIG_MX28 guardian to avoid having
this code called in others.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Marek Vasut <marex@denx.de>
2012-09-01 14:58:28 +02:00
Otavio Salvador
a54535551d MX28: config: Allow different target generation in elftosb call
The elftosb call needs to use a target param specific for i.MX28. This
patch allow for later addition of i.MX233.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Marek Vasut <marex@denx.de>
2012-09-01 14:58:27 +02:00
Marek Vasut
fdb00b8127 MX28: Shuffle around the power management code
Move some function calls to a more appropriate place, so they're
called only when needed.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
2012-09-01 14:58:25 +02:00
Marek Vasut
1b0f5597fb MX28: Drop the cp15 reconfiguration from SPL
The SPL doesn't need the CP15 reconfiguration, as that's what the
BootROM does for us already. Moreover, when the CP15 is reconfigured
and the code returns control to BootROM, the USB boot works no more.

Remove the code and allow [1] to work properly as well.

[1] http://git.bfuser.eu/?p=marex/mxsldr.git;a=summary

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
2012-09-01 14:58:25 +02:00
Otavio Salvador
fa7a51cb82 mxs: Convert sys_proto.h prefixes to 'mxs'
The sys_proto.h functions (except the boot modes) are compatible with
i.MX233 and i.MX28 so we use 'mxs' prefix for its methods.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-09-01 14:58:25 +02:00
Otavio Salvador
d7d8a3a150 mxs: Remove not required include of iomux-mx28.h
The iomux-mx28.h include is not required on spl_mem_init.c so it has
been droped.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-09-01 14:58:25 +02:00
Otavio Salvador
f348199606 mxs: Remove not required explicit iomux-mx28.h include
The iomux header is included on sys_proto.h so to avoid SoC specific
header inclusion.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Marek Vasut <marex@denx.de>
2012-09-01 14:58:25 +02:00
Stathis Voukelatos
8b165a5394 i.MX28: bug fixes in PMU configuration code
Signed-off-by: Stathis Voukelatos <stathis.voukelatos@linn.co.uk>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
2012-09-01 14:58:18 +02:00
Marek Vasut
7fb1ed0eab MX28: Move the u-boot.bd info CPUDIR/SOCDIR
This gets us rid of duplication of the same file.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
2012-09-01 14:58:18 +02:00
Otavio Salvador
41e5497225 mxs: rename mx28.c to mxs.c as it is common to i.MX233 and i.MX28 SoCs
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-09-01 14:58:17 +02:00
Otavio Salvador
05c823bd32 mxs: Clarify why we poweroff in case of brownout in 5v conflict
If VDDIO has a brownout, then the VDD5V_GT_VDDIO becomes unreliable
but this wasn't clear on code so a comment has been added to clarify
it.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-09-01 14:58:17 +02:00
Otavio Salvador
1e0cf5c34b mxs: Reowork SPL to use 'mxs' prefix for methods
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-09-01 14:58:17 +02:00
Otavio Salvador
9c471142bc mxs: prefix register structs with 'mxs' prefix
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-09-01 14:58:17 +02:00
Otavio Salvador
ddcf13b152 mxs: prefix register acessor macros with 'mxs' prefix
As the register accessing mode is the same for all i.MXS SoCs we ought
to use 'mxs' prefix intead of 'mx28'.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-09-01 14:58:17 +02:00
Otavio Salvador
3a0398d7b9 mxs: reorganize source directory for easy sharing of code in i.MXS SoCs
Most code can be shared between i.MX23 and i.MX28 as both are from
i.MXS family; this source directory structure makes easy to share code
among them.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Stefano Babic <sbabic@denx.de>
2012-09-01 14:58:17 +02:00