diff options
| author | Peng Fan <Peng.Fan@freescale.com> | 2015-05-22 13:09:58 +0800 |
|---|---|---|
| committer | Peng Fan <Peng.Fan@freescale.com> | 2015-05-22 14:06:27 +0800 |
| commit | cd1bd6ee94e720af911a2ce7db697af0df59c0a9 (patch) | |
| tree | 0fa879fd3f904b51a824268274f3cb214a0c9fd6 /board/freescale/ls2085a/ddr.c | |
| parent | 00b8997167f0e63fbacf9f2ac9c64bf1d2acd07f (diff) | |
| download | u-boot-imx-cd1bd6ee94e720af911a2ce7db697af0df59c0a9.zip u-boot-imx-cd1bd6ee94e720af911a2ce7db697af0df59c0a9.tar.gz u-boot-imx-cd1bd6ee94e720af911a2ce7db697af0df59c0a9.tar.bz2 | |
MLK-10546-2 imx: mx7 implement reset_misc
On mx7d 12x12 lpddr3 arm2 board, POR_B reset in uboot will fail stress
reset test, and hangs in rom code. Rom log buffer show thats wrong
hab_image_entry and runs into serial download mode. Also there is no
time delay reset circuit for this board.
We found when disable CONFIG_VIDEO, all seems fine. Actually,
only the following piece of code can make stress reset ok,
"
writel(LCDIF_CTRL1_VSYNC_EDGE_IRQ, ®s->hw_lcdif_ctrl1_clr);
while (--timeout) {
if (readl(®s->hw_lcdif_ctrl1) & LCDIF_CTRL1_VSYNC_EDGE_IRQ)
break;
udelay(1);
}
"
Here we use lcdif_power_down API which is better to shutdown lcdif same as
the way used in arch_preboot_os.
Implement reset_misc for mx7, since it does not hurt for others boards.
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Diffstat (limited to 'board/freescale/ls2085a/ddr.c')
0 files changed, 0 insertions, 0 deletions