Hello again,
On 09/25/2015 10:56 AM, Przemyslaw Marczak wrote:
Hello,
On 09/24/2015 05:29 PM, Przemyslaw Marczak wrote:
Booting of Odroid U3 with SD card, ends with error:
MMC: EXYNOS DWMMC: 0
Card did not respond to voltage select!
*** Warning - MMC init failed, using default environment
Generally this was broken, because of wrong addresses assigned to GPIOs.
The source of the problem was in rework of lib/fdtdec.c, after which
function fdtdec_get_addr() doesn't work as previous and function
dev_get_addr() doesn't works as expected.
The code after rework in lib/fdtdec.c assume, that #size-cells property,
should be always greater or equal to 1. This was wrong, because it can
be 0.
In case of debugging the issue I found, that mmc clock was computed
wrong,
for Exynos4, because of function get_mmc_clk(), which always return -1
for
this SoC.
Tested on: Odroid U3 and Odroid XU3.
Przemyslaw Marczak (3):
fix: fdtdec: allow parse 'reg' property with zero value in
'#size-cells'
fix: s5p_gpio: call: dev_get_addr() instead of fdtdec_get_addr()
fix: mach-exynos: clock: restore calling dead exynos4_get_mmc_clk()
arch/arm/mach-exynos/clock.c | 10 ++++------
drivers/gpio/s5p_gpio.c | 18 +++++++++++-------
lib/fdtdec.c | 2 +-
3 files changed, 16 insertions(+), 14 deletions(-)
+Tested-on: Odroid X2
Best regards,
This patchset also fixes broken boot on Trats2. Probably the same for
other Exynos4 boards.
+Tested-on: Trats2
Best regards,
--
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marc...@samsung.com
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