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| author | Robert Jarzmik <robert.jarzmik@free.fr> | 2014-01-18 12:48:04 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-01-20 16:36:56 +0100 |
| commit | 6b07bf28cdf71ef59fe01181734519857a093cab (patch) | |
| tree | 047541e0e8a058a741c8594e406c0b7c06572a34 /arch | |
| parent | d9a08d8bc5da4f06a2c96f4a4c4591c01d5b5d44 (diff) | |
| download | barebox-6b07bf28cdf71ef59fe01181734519857a093cab.tar.gz barebox-6b07bf28cdf71ef59fe01181734519857a093cab.tar.xz | |
ARM: mioa701: fix frequence speedup code
As barebox has become the true SPL of mioa701 board (no intermediate
SPL), a bug was uncovered in the init procedure, where the CPU voltage
was to be increased by commanding the I2C voltage regulator, while the
I2C was shut down.
Fix it by unclock-gating the power I2C bus before using it.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boards/mioa701/board.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/boards/mioa701/board.c b/arch/arm/boards/mioa701/board.c index 6c877bc00f..6f93900fdc 100644 --- a/arch/arm/boards/mioa701/board.c +++ b/arch/arm/boards/mioa701/board.c @@ -265,6 +265,7 @@ static int mioa701_coredevice_init(void) * This requires to command the Maxim 1586 to upgrade core voltage to * 1.475 V, on the power I2C bus (device 0x14). */ + CKEN |= CKEN_PWRI2C; CCCR = CCCR_A | 0x20290; PCFR = PCFR_GPR_EN | PCFR_FVC | PCFR_DC_EN | PCFR_PI2C_EN | PCFR_OPDE; PCMD(0) = PCMD_LC | 0x1f; |