mirror/u-boot-2016
1
0
Fork 0
mirror of https://git.codelinaro.org/clo/qsdk/oss/boot/u-boot-2016.git synced 2025-12-10 07:44:53 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge "ipq40xx: Add maximum timeout for BAM interrupt"

Browse source
This commit is contained in:
Linux Build Service Account 2018-02-27 23:40:22 -08:00 • committed by Gerrit - the friendly Code Review server
commit e32fb8ece9
1 changed files with 5 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
drivers/dma/bam.c
View file

@ -32,6 +32,7 @@
#include <common.h>
#include <asm/arch-qca-common/bam.h>
#define HLOS_EE_INDEX 0
#define TIMEOUT 2000
/* Resets pipe registers and state machines */
void bam_pipe_reset(struct bam_instance *bam,
@ -56,13 +57,17 @@ int bam_wait_for_interrupt(struct bam_instance *bam,
enum p_int_type interrupt)
{
uint32_t val;
uint32_t start;
while (1)
{
start = get_timer(0);
/* Wait for a interrupt on the right pipe */
do{
/* Determine the pipe causing the interrupt */
val = readl(BAM_IRQ_SRCS(bam->base, bam->ee));
if(get_timer(start) >= TIMEOUT)
return BAM_RESULT_FAILURE;
/* Flush out the right most global interrupt bit */
} while (!((val & BAM_IRQ_SRCS_PIPE_MASK) &
(1 << bam->pipe[pipe_num].pipe_num)));