Eric Lee / smarc-uboot

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Commit 3b10cf120befe9c2e938a7d4e04eb0b545ee347a

Authored by Chris Packham
Committed by Tom Rini
1 parent 334bbb387f
Exists in v2017.01-smarct4x and in 34 other branches 8qm-imx_v2020.04_5.4.70_2.3.0, emb_lf_v2022.04, pitx_8mp_lf_v2020.04, smarc-8m-android-10.0.0_2.6.0, smarc-8m-android-11.0.0_2.0.0, smarc-8mp-android-11.0.0_2.0.0, smarc-imx6_v2018.03_4.14.98_2.0.0_ga, smarc-imx7_v2017.03_4.9.11_1.0.0_ga, smarc-imx7_v2018.03_4.14.98_2.0.0_ga, smarc-imx_v2017.03_4.9.11_1.0.0_ga, smarc-imx_v2017.03_4.9.88_2.0.0_ga, smarc-imx_v2017.03_o8.1.0_1.3.0_8m, smarc-imx_v2018.03_4.14.78_1.0.0_ga, smarc-n7.1.2_2.0.0-ga, smarc-rel_imx_4.1.15_2.0.0_ga, smarc_8m-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8m-imx_v2019.04_4.19.35_1.1.0, smarc_8m_00d0-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2019.04_4.19.35_1.1.0, smarc_8mm-imx_v2020.04_5.4.24_2.1.0, smarc_8mp_lf_v2020.04, smarc_8mq-imx_v2020.04_5.4.24_2.1.0, smarc_8mq_lf_v2020.04, ti-u-boot-2015.07, v2015.07-smarct33, v2015.07-smarct33-emmc, v2015.07-smarct4x, v2016.05-dlt, v2016.05-smarct3x, v2016.05-smarct3x-emmc, v2016.05-smarct4x, v2017.01-smarct3x, v2017.01-smarct3x-emmc

README: Describe CONFIG_SYS_NO_FLASH 

Unlike most configuration options defining this actually disables
support for a feature (parallel flash). Eventually the logic behind this
should probably be flipped so that '#ifndef CONFIG_SYS_NO_FLASH' becomes
'#ifdef CONFIG_HAS_PARALLEL_FLASH' but for now lets document the
existing behaviour.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>

Showing 1 changed file with 13 additions and 0 deletions Side-by-side Diff

... ... @@ -3037,6 +3037,19 @@
3037 3037 this is instead controlled by the value of
3038 3038 /config/load-environment.
3039 3039  
  3040 +- Parallel Flash support:
  3041 + CONFIG_SYS_NO_FLASH
  3042 +
  3043 + Traditionally U-boot was run on systems with parallel NOR
  3044 + flash. This option is used to disable support for parallel NOR
  3045 + flash. This option should be defined if the board does not have
  3046 + parallel flash.
  3047 +
  3048 + If this option is not defined one of the generic flash drivers
  3049 + (e.g. CONFIG_FLASH_CFI_DRIVER or CONFIG_ST_SMI) must be
  3050 + selected or the board must provide an implementation of the
  3051 + flash API (see include/flash.h).
  3052 +
3040 3053 - DataFlash Support:
3041 3054 CONFIG_HAS_DATAFLASH
3042 3055