Skip to content

Commit

Permalink
OMAP1: clock_data: use runtime cpu / machine checks
Browse files Browse the repository at this point in the history
Otherwise multi-omap1 configurations may set wrong clock speed.

Created and tested against l-o master on Amstrad Delta.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
  • Loading branch information
Janusz Krzysztofik authored and Paul Walmsley committed Dec 22, 2010
1 parent 1124d2f commit 65ae65c
Showing 1 changed file with 8 additions and 9 deletions.
17 changes: 8 additions & 9 deletions arch/arm/mach-omap1/clock_data.c
Original file line number Diff line number Diff line change
Expand Up @@ -823,12 +823,10 @@ int __init omap1_clk_init(void)
crystal_type = info->system_clock_type;
}

#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
ck_ref.rate = 13000000;
#elif defined(CONFIG_ARCH_OMAP16XX)
if (crystal_type == 2)
if (cpu_is_omap7xx())
ck_ref.rate = 13000000;
if (cpu_is_omap16xx() && crystal_type == 2)
ck_ref.rate = 19200000;
#endif

pr_info("Clocks: ARM_SYSST: 0x%04x DPLL_CTL: 0x%04x ARM_CKCTL: "
"0x%04x\n", omap_readw(ARM_SYSST), omap_readw(DPLL_CTL),
Expand Down Expand Up @@ -883,10 +881,11 @@ int __init omap1_clk_init(void)
ck_dpll1.rate / 1000000, (ck_dpll1.rate / 100000) % 10,
arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10);

#if defined(CONFIG_MACH_OMAP_PERSEUS2) || defined(CONFIG_MACH_OMAP_FSAMPLE)
/* Select slicer output as OMAP input clock */
omap_writew(omap_readw(OMAP7XX_PCC_UPLD_CTRL) & ~0x1, OMAP7XX_PCC_UPLD_CTRL);
#endif
if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
/* Select slicer output as OMAP input clock */
omap_writew(omap_readw(OMAP7XX_PCC_UPLD_CTRL) & ~0x1,
OMAP7XX_PCC_UPLD_CTRL);
}

/* Amstrad Delta wants BCLK high when inactive */
if (machine_is_ams_delta())
Expand Down

0 comments on commit 65ae65c

Please sign in to comment.