UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ARM: OMAP: hwmod: Use sysc_fields->srst_shift and get rid of hardcoded SYSC_TYPE2_SOFTRESET_MASK 

This is useful when we have broken type2 compliant IPs' where
the softreset shift is not the same as SYSC_TYPE2_SOFTRESET_SHIFT
and hence is overridden using sysc_fields->srst_shift.

We have at least one such instance now with onchip keypad on OMAP5
which has a different softreset shift as compared to other type2
IPs'.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Balaji TK  <balajitk@ti.com>
Tested-by: Sourav Poddar <sourav.poddar@ti.com>
Acked-by: Benoît Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Rajendra Nayak 2012-03-12 04:29:58 -06:00 committed by Paul Walmsley
parent fde7d9049e
commit 387ca5bf4f
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm/mach-omap2/omap_hwmod.c
View File

@ -1395,7 +1395,7 @@ static int _read_hardreset(struct omap_hwmod *oh, const char *name)
*/
static int _ocp_softreset(struct omap_hwmod *oh)
{
u32 v;
u32 v, softrst_mask;
int c = 0;
int ret = 0;
@ -1427,11 +1427,13 @@ static int _ocp_softreset(struct omap_hwmod *oh)
oh->class->sysc->syss_offs)
& SYSS_RESETDONE_MASK),
MAX_MODULE_SOFTRESET_WAIT, c);
else if (oh->class->sysc->sysc_flags & SYSC_HAS_RESET_STATUS)
else if (oh->class->sysc->sysc_flags & SYSC_HAS_RESET_STATUS) {
softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift);
omap_test_timeout(!(omap_hwmod_read(oh,
oh->class->sysc->sysc_offs)
& SYSC_TYPE2_SOFTRESET_MASK),
& softrst_mask),
MAX_MODULE_SOFTRESET_WAIT, c);
}
if (c == MAX_MODULE_SOFTRESET_WAIT)
pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n",