diff options
| author | Jan Weitzel <J.Weitzel@phytec.de> | 2009-04-14 17:08:03 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2009-04-14 17:10:12 +0200 |
| commit | 82a4cf29b2d5204d2051d89d0b0bc930f7135573 (patch) | |
| tree | 40c4022d86410d2111c892efea82149625a3e301 | |
| parent | dcb35fbaf12ff652f0d88c02f7f04b514c8bc993 (diff) | |
| download | barebox-82a4cf29b2d5204d2051d89d0b0bc930f7135573.tar.gz barebox-82a4cf29b2d5204d2051d89d0b0bc930f7135573.tar.xz | |
pcm038: Fix PLL settings
We had some imx27 modules not starting through u-boot. The patch adds some
delay between switching the powerlevel up and changing the pll settings.
Please add the patch to the next release.
Signed-off-by: Jan Weitzel <J.Weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | board/pcm038/pcm038.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/board/pcm038/pcm038.c b/board/pcm038/pcm038.c index 1ccdf23bb8..626a73568e 100644 --- a/board/pcm038/pcm038.c +++ b/board/pcm038/pcm038.c @@ -1,4 +1,4 @@ - /* +/* * Copyright (C) 2007 Sascha Hauer, Pengutronix * * This program is free software; you can redistribute it and/or @@ -238,17 +238,23 @@ static int pcm038_power_init(void) if (ret) goto out; + CSCR |= CSCR_UPDATE_DIS; + MPCTL0 = IMX_PLL_PD(0) | IMX_PLL_MFD(51) | IMX_PLL_MFI(7) | IMX_PLL_MFN(35); - CSCR |= CSCR_MPLL_RESTART; - - while (i++ < 1000) { + /* wait for good power level */ + while (i++ < 128) { while (CCSR & CCSR_32K_SR); while (!(CCSR & CCSR_32K_SR)); } + i = 0; + + CSCR |= CSCR_MPLL_RESTART; + + while (!(MPCTL1 & MPCTL1_LF)); PCDR1 = 0x09030911; |