Current DWMMC driver used to give FIFO underrun/overrun error every 3rd time
for mmc rescan command.
In current code FIFO_DEPTH is getting calculated after reading the default FIFOTH
register and extracting the RX_WMARK bits from it i.e (RX_WMARK = FIFO_DEPTH/2 -1).
Instead of storing the correct value, we were recalculating the FIFO_DEPT each
time which is not correct.
Based on "[PATCH V9 3/9] DWMMC: Initialise dwmci and resolve EMMC read write issues"
http://permalink.gmane.org/gmane.comp.boot-loaders.u-boot/160247
Signed-off-by: Hatim Ali <hatim.rv@samsung.com> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This patch does the folowing
1. change the data types for unsigned int variable to unsigned
2. change the tmu_base type to struct exynos5_tmu_reg *
3. Add timer functionality for get_cur_temp()
4. error handling in the get_tmu_fdt_values()
5. Add check for curr_temp reading
6. some cosmotic changes.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Reviewed-by: Vadim Bendebury <vbendeb@google.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
SMDK5250: Initialise and Enable DWMMC, support FDT and non-FDT
This patch enables and initialises DWMMC for SMDK5250.
Supports both FDT and non-FDT. This patch creates a new file
'exynos5-dt.c' meant for FDT support.
exynos5-dt.c: This file shall contain all code which supports FDT.
Any addition of FDT support for any module needs to be
added in this file.
smdk5250.c: This file shall contain the code which supports non-FDT.
version. Any addition of non-FDT support for any module
needs to be added in this file.
May be, the file smdk5250.c can be removed in near future
when non-FDT is not required.
The Makefile is updated to compile only one of the files
exynos5-dt.c / smdk5250.c based on FDT configuration.
NOTE:
Please note that all additions corresponding to FDT need to be added into the
file exynos5-dt.c.
At same time if non-FDT support is required then add the corresponding
updations into smdk5250.c.
Signed-off-by: Amar <amarendra.xt@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
EXYNOS5: DWMMC: Initialise the local variable to avoid unwanted results.
This patch initialises the local variable 'shift' to zero.
The uninitialised local variable 'shift' had garbage value and was
resulting in unwnated results in the functions exynos5_get_mmc_clk()
and exynos4_get_mmc_clk().
Signed-off-by: Amar <amarendra.xt@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This patch adds FDT support for DWMMC, by reading the DWMMC node data
from the device tree and initialising DWMMC channels as per data
obtained from the node.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Amar <amarendra.xt@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
DWMMC: Initialise dwmci and resolve EMMC read write issues
This patch enumerates dwmci and set auto stop command during
dwmci initialisation.
EMMC read/write is not happening in current implementation
due to improper fifo size computation. Hence modified the fifo size
computation to resolve EMMC read write issues.
Sergey Yanovich [Mon, 20 May 2013 21:26:00 +0000 (01:26 +0400)]
arm: pxa: Add support for ICP DAS LP-8x4x
LP-8x4x is a programmable automation controller by ICP DAS. It is
shipped with outdated U-Boot v1.3.0
This patch adds enough supports to boot the board:
- 128M of 128M SDRAM
- 32M of 48M NOR Flash memory
- 1 of 4 Serial consoles (PXA FFUART)
- 2 of 2 Ethernet controllers (DM9000)
arm: da830: moved pinmux configurations to the arch tree
Move pinmux configurations for the DA830 SoCs from board file
to the arch tree so that it can be used for all da830 based devices.
Also, avoids duplicate pinmuxing in case of NAND.
Signed-off-by: Vishwanathrao Badarkhe, Manish <manishv.b@ti.com> Reviewed-by: Tom Rini <trini@ti.com> Acked-by: Christian Riesch <christian.riesch@omicron.at>
Lubomir Popov [Sat, 1 Jun 2013 06:44:38 +0000 (06:44 +0000)]
ARM: OMAP: I2C: New read, write and probe functions
New i2c_read, i2c_write and i2c_probe functions, tested on OMAP4
(4430/60/70), OMAP5 (5430) and AM335X (3359); should work on older
OMAPs and derivatives as well. The only anticipated exception would
be the OMAP2420, which shall require driver modification.
- Rewritten i2c_read to operate correctly with all types of chips
(old function could not read consistent data from some I2C slaves).
- Optimised i2c_write.
- New i2c_probe, performs write access vs read. The old probe could
hang the system under certain conditions (e.g. unconfigured pads).
- The read/write/probe functions try to identify unconfigured bus.
- Status functions now read irqstatus_raw as per TRM guidelines
(except for OMAP243X and OMAP34XX).
- Driver now supports up to I2C5 (OMAP5).
Tom Rini [Tue, 4 Jun 2013 12:02:06 +0000 (12:02 +0000)]
arm: Remove OMAP2420H4 and all omap24xx support
The omap2420H4 was the only mainline omap24xx board. Prior to being
fixed by Jon Hunter in time for v2013.04 it had been functionally broken
for a very long time. Remove this board as there's not been interest in
it in U-Boot for quite a long time.
Lokesh Vutla [Thu, 30 May 2013 03:19:38 +0000 (03:19 +0000)]
ARM: DRA7xx: clocks: Update PLL values
Update PLL values.
SYS_CLKSEL value for 20MHz is changed to 2. In other platforms
SYS_CLKSEL value 2 represents reserved. But in sys_clk array
ind 1 is used for 13Mhz. Since other platforms are not using
13Mhz, reusing index 1 for 20MHz.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Sricharan R <r.sricharan@ti.com>
Sricharan R [Thu, 30 May 2013 03:19:34 +0000 (03:19 +0000)]
ARM: DRA7xx: Correct the SYS_CLK to 20MHZ
The sys_clk on the dra evm board is 20MHZ.
Changing the configuration for the same.
And also moving V_SCLK, V_OSCK defines to
arch/clock.h for OMAP4+ boards.
Signed-off-by: Sricharan R <r.sricharan@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Lokesh Vutla [Thu, 30 May 2013 03:19:30 +0000 (03:19 +0000)]
ARM: DRA7xx: clocks: Fixing i2c_init for PMIC
In DRA7xx Soc's voltage scaling is done using GPI2C.
So i2c_init should happen before scaling. I2C driver
uses __udelay which needs timer to be initialized.
So moving timer_init just before voltage scaling. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Lokesh Vutla [Thu, 30 May 2013 02:54:33 +0000 (02:54 +0000)]
ARM: OMAP4+: pmic: Make generic bus init and write functions
Voltage scaling can be done in two ways:
-> Using SR I2C
-> Using GP I2C
In order to support both, have a function pointer in pmic_data
so that we can call as per our requirement.
Lokesh Vutla [Thu, 30 May 2013 02:54:30 +0000 (02:54 +0000)]
ARM: OMAP4+: Cleanup header files
After having the u-boot clean up series, there are
many definitions that are unused in header files.
Removing all those unused ones. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Lubomir Popov [Sun, 26 May 2013 10:03:17 +0000 (10:03 +0000)]
OMAP5: Fix bug in omap5_es1_prcm struct
The newly introduced function setup_warmreset_time(), called
from within prcm_init(), tries to write to the prm_rsttime
OMAP5 register. The struct member holding this register's
address is however initialized for OMAP5 ES2.0 only. On ES1.0
devices this uninitialized value causes a second (warm) reset
at startup.
Add .prm_rsttime address init to the ES1.0 struct.
Signed-off-by: Lubomir Popov <lpopov@mm-sol.com> Acked-by: Tom Rini <trini@ti.com>
Adaptive Body Biasing (ABB) modulates transistor bias voltages
dynamically in order to optimize switching speed versus leakage.
Adaptive Body-Bias ldos are present for some voltage domains
starting with OMAP3630. There are three modes of operation:
* Bypass - the default, it just follows the vdd voltage
* Foward Body-Bias - applies voltage bias to increase transistor
performance at the cost of power. Used to operate safely at high
OPPs.
* Reverse Body-Bias - applies voltage bias to decrease leakage and
save power. Used to save power at lower OPPs.
Tom Warren [Thu, 23 May 2013 12:26:18 +0000 (12:26 +0000)]
ARM: tegra: only enable SCU on Tegra20
The non-SPL build of U-Boot on Tegra only runs on a single CPU, and
hence there is no need to enable the SCU when running U-Boot. If an
SMP OS is booted, and it needs the SCU enabled, it will enable the SCU
itself. U-Boot doing so is redundant.
The one exception is Tegra20, where an enabled SCU is required for some
aspects of PCIe to work correctly.
Some Tegra SoCs contain CPUs without a software-controlled SCU. In this
case, attempting to turn it on actively causes problems. This is the case
for Tegra114. For example, when running Linux, the first (or at least
some very early) user-space process will trigger the following kernel
message:
Unhandled fault: imprecise external abort (0x406) at 0x00000000
This is typically accompanied by that process receving a fatal signal,
and exiting. Since this process is usually pid 1, this causes total
system boot failure.
Signed-off-by: Tom Warren <twarren@nvidia.com>
[swarren, fleshed out description, ported to upstream chipid APIs] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Fabio Estevam [Tue, 4 Jun 2013 15:05:39 +0000 (15:05 +0000)]
ARM: imx: Fix incorrect usage of CONFIG_SYS_MMC_ENV_PART
When running the "save" command several times on a mx6qsabresd we see:
U-Boot > save
Saving Environment to MMC...
Writing to MMC(1)... done
U-Boot > save
Saving Environment to MMC...
MMC partition switch failed
U-Boot > save
Saving Environment to MMC...
Writing to MMC(1)... done
U-Boot > save
Saving Environment to MMC...
MMC partition switch failed
U-Boot > save
Saving Environment to MMC...
Writing to MMC(1)... done
U-Boot > save
Saving Environment to MMC...
MMC partition switch failed
This issue is caused by the incorrect usage of CONFIG_SYS_MMC_ENV_PART.
CONFIG_SYS_MMC_ENV_PART should be used to specify the mmc partition that stores
the environment variables.
On some imx boards it is been incorrectly used to pass the partition of kernel
and dtb files for the 'mmcpart' script variable.
Remove the CONFIG_SYS_MMC_ENV_PART usage and configure the 'mmcpart' variable
directly.
Reported-by: Jason Liu <r64343@freescale.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Jason Liu <r64343@freescale.com>
Tom Rini [Fri, 31 May 2013 16:31:59 +0000 (12:31 -0400)]
am33xx/omap: Move save_omap_boot_params to omap-common/boot-common.c
We need to call the save_omap_boot_params function on am33xx/ti81xx and
other newer TI SoCs, so move the function to boot-common. Only OMAP4+
has the omap_hw_init_context function so add ifdefs to not call it on
am33xx/ti81xx. Call save_omap_boot_params from s_init on am33xx/ti81xx
boards.
Reviewed-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini [Fri, 31 May 2013 14:48:03 +0000 (10:48 -0400)]
am33xx: Correct NON_SECURE_SRAM_START/END
Prior to Sricharan's cleanup of the boot parameter saving code, we
did not make use of NON_SECURE_SRAM_START on am33xx, so it wasn't a
problem that the address was pointing to the middle of our running SPL.
Correct to point to the base location of the download image area.
Increase CONFIG_SPL_TEXT_BASE to account for this scratch area being
used. As part of correcting these tests, make use of the fact that
we've always been placing our stack outside of the download image area
(which is fine, once the downloaded image is run, ROM is gone) so
correct the max size test to be the ROM defined top of the download area
to where we link/load at.
Signed-off-by: Tom Rini <trini@ti.com>
---
Changes in v2:
- Fix typo noted by Peter Korsgaard
exynos: update tzpc to make it common for exynos4 and exynos5
This requires that cpu_is_exynos4/5 should be made available before tzpc_init.
Hence this patch also makes necessary changes to have cpu_info in spl and
invokes arch_cpu_init before tzpc_init in low_level_init.S for smdk5250.
Otavio Salvador [Mon, 27 May 2013 12:18:43 +0000 (12:18 +0000)]
build: Use generic boot logo matching
The boot logo matching is now done in following way:
- use LOGO_BMP if it is set, or
- use $(BOARD).bmp if it exists in tools/logos, or
- use $(VENDOR).bmp if it exists in tools/logos, or
- use denx.bmp otherwise.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Acked-by: Wolfgang Denk <wd@denx.de>
Andrew Gabbasov [Thu, 30 May 2013 04:47:38 +0000 (04:47 +0000)]
mx6: mx6qsabrelite/nitrogen6x: Remove incorrect setting of gpio CS signal
The number of gpio signal is packed inside CONFIG_SF_DEFAULT_CS macro
(shifted and or'ed with chip select), so it's incorrect to pass
that macro directly as an argument to gpio_direction_output() call.
Also, SPI driver sets the direction and initial value of a gpio,
used as a chip select signal, before any actual activity happens
on the bus.
So, it is safe to just remove the gpio_direction_output call,
that works incorrectly, thus making no effect, anyway.
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Tested-by: Robert Winkler <robert.winkler@boundarydevices.com> Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Fabio Estevam [Thu, 23 May 2013 13:57:18 +0000 (13:57 +0000)]
mx6slevk: Allow booting a device tree kernel
When the mx6slevk board support was added in U-boot there was no device tree
support for mx6sl, so only a FSL 3.0.35 was tested at that time.
Now that mx6slevk support is available we can boot a device tree kernel, by
adjusting CONFIG_LOADADDR into a proper location, so that a non-dt and a dt
kernels can be booted.
Marek Vasut [Thu, 25 Apr 2013 16:37:12 +0000 (16:37 +0000)]
arm: mxs: Fix vectoring table crafting
The vectoring table has to be placed at 0x0, but U-Boot on MX23/MX28
starts from RAM, so the vectoring table at 0x0 is not present. Craft
code that will be placed at 0x0 and will redirect interrupt vectoring
to proper location of the U-Boot in RAM.
Alison Wang [Mon, 27 May 2013 22:55:43 +0000 (22:55 +0000)]
net: fec_mxc: Add support for Vybrid VF610
This patch adds FEC support for Vybrid VF610 platform.
In function fec_open(), RCR register is only set as RGMII mode. But RCR
register should be set as RMII mode for VF610 platform.
This configuration is already done in fec_reg_setup(), so this piece of
code could just leave untouched the FEC_RCNTRL_RGMII / FEC_RCNTRL_RMII /
FEC_RCNTRL_MII_MODE bits.
Alison Wang [Mon, 27 May 2013 22:55:42 +0000 (22:55 +0000)]
arm: vf610: Add Vybrid VF610 CPU support
This patch adds generic codes to support Freescale's Vybrid VF610 CPU.
It aligns Vybrid VF610 platform with i.MX platform. As there are
some differences between VF610 and i.MX platforms, the specific
codes are in the arch/arm/cpu/armv7/vf610 directory.
Signed-off-by: Alison Wang <b18965@freescale.com> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Alison Wang [Mon, 27 May 2013 22:55:41 +0000 (22:55 +0000)]
arm: vf610: Add IOMUX support for Vybrid VF610
This patch adds the IOMUX support for Vybrid VF610 platform.
There is a little difference for IOMUXC module between VF610 and i.MX
platform, the muxmode and pad configuration share one 32bit register on
VF610, but they are two independent registers on I.MX platform. A
CONFIG_IOMUX_SHARE_CONFIG_REG was introduced to fit this difference.
Albert ARIBAUD [Sun, 19 May 2013 01:48:15 +0000 (01:48 +0000)]
arm: factorize relocate_code routine
Replace all relocate_code routines from ARM start.S files
with a single instance in file arch/arm/lib/relocate.S.
For PXA, this requires moving the dcache unlocking code
from within relocate_code into c_runtime_cpu_setup.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Tested-by: Simon Glass <sjg@chromium.org>
Stephen Warren [Fri, 17 May 2013 14:10:14 +0000 (14:10 +0000)]
ARM: tegra: support SKU 1 of Tegra114
Make U-Boot aware of the Tegra114 SKU 1, and treat it identically
to any other Tegra114.
This value is used on (at least some) Dalmore boards with a production
rather than engineering chip. Such boards are in the hands of some
partners who want to use upstream U-Boot.
Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Stephen Warren [Tue, 14 May 2013 08:00:53 +0000 (08:00 +0000)]
tegra: always build u-boot-nodtb-tegra.bin
Even when eventually building u-boot-dtb-tegra.bin, separately building
u-boot-nodtb-tegra.bin can be useful, since building it encapsulates the
SPL padding step. If you want to tweak u-boot.dtb and regenerate
u-boot-dtb-tegra.bin, it is then a simple cat operation.
Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Allen Martin [Fri, 10 May 2013 16:56:55 +0000 (16:56 +0000)]
Tegra: clk: always use find_best_divider() for periph clocks
When adjusting peripheral clocks always use find_best_divider()
instead of clk_get_divider() even when a secondary divider is not
available. In the case where is requested clock is too slow to be
derived from the parent clock this allows a best effort to get close
to the requested clock.
This comes up for commands like "sf" where the user can pass a clock
speed on the command line or "sspi" where the clock is hardcoded to
1MHz, but the Tegra114 SPI controller can't go that low.
Signed-off-by: Allen Martin <amartin@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Ruchika Gupta [Mon, 25 Mar 2013 07:40:25 +0000 (07:40 +0000)]
SECURE BOOT - Removed deletion of TLB entries code
Boot ROM code creates TLB entries for 3.5G space before entering
the u-boot. Earlier we were deleting these entries after early
initialization of CPU. In recent past, code has been added
to invalidate all these entries before relocation of u-boot code.
So this code to delete TLB entries after CPU initialization
is no longer required.
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com> Acked-by: Matthew McClintock <msm@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Shaohui Xie [Mon, 25 Mar 2013 07:40:21 +0000 (07:40 +0000)]
powerpc/p5040: fix mdio mux for 10G port
Current driver of p5040 assumes 10G port follows 1G port DTSEC5 in
eth port enum structure, it will assign mdio mux depend on this assumption.
This is not true with Fman V3, which added more 1G ports after port DTSEC5
in eth port enum structure, then 10G ports on p5040 will have wrong mdio mux.
So we use dynamic index for 10G ports instead of hardcoded enum value
when doing mdio mux for 10G ports.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Poonam Aggrwal [Mon, 25 Mar 2013 07:40:20 +0000 (07:40 +0000)]
powerpc/B4: Merge B4420 and B4860 in config_mpc85xx.h
B4420 is a subset of B4860. Merge them in config_mpc85xx.h to simplify
the defines.
- Removed #define CONFIG_SYS_FSL_NUM_CLUSTERS as this is used nowhere.
- defined CONFIG_SYS_NUM_FM1_10GEC to 0 for B4420 as it does not have 10G.
Also move CONFIG_E6500 out of B4860QDSds.h into config_mpc85xx.h.
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Xie Xiaobo [Mon, 25 Mar 2013 07:40:19 +0000 (07:40 +0000)]
sf: spansion: Add support for S25FL128S
SPANSION recommend S25FL128S supersedes S25FL129P, and the two flash
memory have the same device ID and Memory architecture. So they can
use the same config parameters.
Signed-off-by: Xie Xiaobo <X.Xie@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Shaohui Xie [Mon, 25 Mar 2013 07:40:18 +0000 (07:40 +0000)]
powerpc/p2041: fix serdes reference clock frequency display for PC board
PC board has different serdes clock setting with PB board, it uses same
serdes frequency setting on bank2 as on bank1. PC board can be distingushed
from PB board by checking CPLD version, if running on PC board, then fix
the serdes reference clock frequency of bank2.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Shaveta Leekha [Mon, 25 Mar 2013 07:40:17 +0000 (07:40 +0000)]
powerpc/b4860: fix for Serdes connectivity to SFP's
Crossbar switches were wrongly programmed to
route the CPRI lanes to SFP as the connectivity table
was not correct.
Modified it correctly for SFPs connections.
Signed-off-by: Shaveta Leekha <shaveta@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Shengzhou Liu [Mon, 25 Mar 2013 07:40:15 +0000 (07:40 +0000)]
powerpc/t4240qds: fix PHY reset timeout issue
QSGMII card has different PHY address against previous SGMII card.
We check the type of card in slots and set correct PHY address to
avoid complainning "PHY reset timed out" during u-boot booting up.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Suresh Gupta [Mon, 25 Mar 2013 07:40:13 +0000 (07:40 +0000)]
Enable XAUI interface for B4860QDS
- Added SERDES2 PRTCLs = 0x98, 0x9E
- Default Phy Addresses for Teranetics PHY on XAUI card
The PHY addresses of Teranetics PHY on XAUI riser card are assigned
based on the slot it is in. Switches SW4[2:4] and SW6[2:4] on
AMC2PEX-2S On B4860QDS, AMC2PEX card decide the PHY addresses on slot1
and slot2
- Configure MDIO for 10Gig Mac
Signed-off-by: Suresh Gupta <suresh.gupta@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Ed Swarthout [Mon, 25 Mar 2013 07:40:10 +0000 (07:40 +0000)]
powerpc/t4qds: use clock measurement for sysclk and ddr clock
Use QIXIS measurement registers to obtain sysclk and ddr clock. This
allows using non-standard clock speeds, set by directly writing to
clock chip or store the values in qixis clock data eeprom.
Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com> Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Ed Swarthout [Mon, 25 Mar 2013 07:40:09 +0000 (07:40 +0000)]
powerpc/qixis: add clock measurement registers
QIXIS includes frequency measurement functions for each major processor
clock input. After reset (and after clocks are stable), QIXIS measures
the clocks against a reference frequency and stores the results in
CLK_FREQ registers. A base register supplies a multiplier which allows
directly obtaining the measured value, without requiring knowledge of
the target system or QIXIS core frequency.
Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com> Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
projects / u-boot.git / log