Vic Yang 00799d5bc1 stm32f: Flash write protect ...

Implement STM32F write protect to match refactored flash module.
Also move fake write-protect pin to use backup register to preserve
value across reboot.

BUG=chrome-os-partner:11699
TEST=1. 'flashinfo'      -> no flags
     2. 'fakewp 1'       -> 'wp_gpio_asserted'
     3. 'flashwp enable' -> 'wp_gpio_asserted ro_at_boot'
     4. 'reboot'         -> 'wp_gpio_asserted ro_at_boot ro_now'
     5. 'fakewp 0'       -> 'ro_at_boot ro_now'
     6. 'reboot'         -> 'ro_at_boot'
     7. 'fakewp 1'       -> 'wp_gpio_asserted ro_at_boot'
     8. 'flashwp rw'     -> 'wp_gpio_asserted ro_at_boot rw_at_boot'
     9. 'reboot'         -> 'wp_gpio_asserted ro_at_boot ro_now
                             rw_at_boot rw_now'
     10.'flashwp disable'-> error 7
     11.'flashwp norw'   -> 'wp_gpio_asserted ro_at_boot ro_now rw_now'
     12.'reboot'         -> 'wp_gpio_asserted ro_at_boot ro_now'

Change-Id: I40405c266e30b10793ccae2f1d26fb9710ce304b
Reviewed-on: https://gerrit.chromium.org/gerrit/28372
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Ready: Vic Yang <victoryang@chromium.org>
Tested-by: Vic Yang <victoryang@chromium.org>

2012-07-26 18:28:14 -07:00

..

lm4

Change host command params/response pointers to void *

2012-07-26 16:25:34 -07:00

stm32

stm32f: Flash write protect

2012-07-26 18:28:14 -07:00