diff options
| author |   RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
|---|---|---|
| committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
| commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
| tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/u-boot/doc/README.at91-soc | |
| parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) | |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/doc/README.at91-soc')
| -rw-r--r-- | qemu/roms/u-boot/doc/README.at91-soc | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/qemu/roms/u-boot/doc/README.at91-soc b/qemu/roms/u-boot/doc/README.at91-soc deleted file mode 100644 index ab3f71342..000000000 --- a/qemu/roms/u-boot/doc/README.at91-soc +++ /dev/null @@ -1,48 +0,0 @@ - New C structure AT91 SoC access -================================= - -The goal --------- - -Currently the at91 arch uses hundreds of address defines and special -at91_xxxx_write/read functions to access the SOC. -The u-boot project perferred method is to access memory mapped hw -regisister via a c structure. - -e.g. old - - *AT91C_PIOA_IDR = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK; - *AT91C_PIOC_PUDR = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK; - *AT91C_PIOC_PER = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK; - *AT91C_PIOC_OER = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK; - *AT91C_PIOC_PIO = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK; - - at91_sys_write(AT91_RSTC_CR, - AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST); - -e.g new - pin = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK; - writel(pin, &pio->pioa.idr); - writel(pin, &pio->pioa.pudr); - writel(pin, &pio->pioa.per); - writel(pin, &pio->pioa.oer); - writel(pin, &pio->pioa.sodr); - - writel(AT91_RSTC_KEY | AT91_RSTC_CR_PROCRST | - AT91_RSTC_CR_PERRST, &rstc->cr); - -The method for updating ------------------------- - -1. add's the temporary CONFIG_AT91_LEGACY to all at91 board configs -2. Display a compile time warning, if the board has not been converted -3. add new structures for SoC access -4. Convert arch, driver and boards file to new SoC -5. remove legacy code, if all boards and drives are ready - -2013-10-30 Andreas Bießmann <andreas.devel@googlemail.com>: - -The goal is almost reached, we could remove the CONFIG_AT91_LEGACY switch but -remain the CONFIG_ATMEL_LEGACY switch until the GPIO disaster is fixed. The -AT91 spi driver has also some CONFIG_ATMEL_LEGACY stuff left, so another point -to fix until this README can be removed. |