diff options
| author | Ronald G. Minnich <rminnich@gmail.com> | 2013-08-16 19:53:41 -0700 |
|---|---|---|
| committer | Isaac Christensen <isaac.christensen@se-eng.com> | 2014-08-06 23:09:32 +0200 |
| commit | bc6cc112e2a4a2474c8ce946faea24980732762a (patch) | |
| tree | db903508c740c079814275101962ff323fdb310a /src | |
| parent | f2c4241b810665bbeb5f9e2f8c00cb2d0d4e6622 (diff) | |
| download | coreboot-bc6cc112e2a4a2474c8ce946faea24980732762a.tar.xz | |
Exynos5420: tighten up display port delays
Shorten a few delays, and make some delays shorter but let the
loops have a higher termination count (i.e. give it the same
amount of time to warm up, but check more frequently).
Change-Id: Id9fe846ae3a8d792b14d62aea4e98d8aad05be43
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/66156
Commit-Queue: Ronald G. Minnich <rminnich@chromium.org>
Tested-by: Ronald G. Minnich <rminnich@chromium.org>
Reviewed-by: Stefan Reinauer <reinauer@google.com>
(cherry picked from commit a112e77f2f21f41f982ca22bebdac213cc8d233a)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6506
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/cpu/samsung/exynos5420/dp.h | 2 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5420/dp_lowlevel.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/src/cpu/samsung/exynos5420/dp.h b/src/cpu/samsung/exynos5420/dp.h index d260c88af1..4d9d26b859 100644 --- a/src/cpu/samsung/exynos5420/dp.h +++ b/src/cpu/samsung/exynos5420/dp.h @@ -1187,7 +1187,7 @@ static inline u32 exynos_fimd_get_base_offset(void) #define EXYNOS_DP_CLK_ENABLE (1 << 1) #define EXYNOS_MIE_CLK_ENABLE (3 << 0) -#define DP_TIMEOUT_LOOP_COUNT 100 +#define DP_TIMEOUT_LOOP_COUNT 1000 #define MAX_CR_LOOP 5 #define MAX_EQ_LOOP 4 diff --git a/src/cpu/samsung/exynos5420/dp_lowlevel.c b/src/cpu/samsung/exynos5420/dp_lowlevel.c index 64a296258d..16b9a7ffb2 100644 --- a/src/cpu/samsung/exynos5420/dp_lowlevel.c +++ b/src/cpu/samsung/exynos5420/dp_lowlevel.c @@ -452,7 +452,7 @@ unsigned int exynos_dp_detect_hpd(void) while (exynos_dp_get_plug_in_status() != 0) { if (timeout_loop == 0) return -1; - mdelay(10); + mdelay(1); timeout_loop--; } @@ -865,7 +865,7 @@ void exynos_dp_reset_macro(void) lwrite32(reg, &dp_regs->phy_test); /* 10 us is the minimum Macro reset time. */ - mdelay(1); + udelay(50); reg &= ~MACRO_RST; lwrite32(reg, &dp_regs->phy_test); |