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| author | Robert Delien <robert@delien.nl> | 2012-02-26 12:15:07 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-03-26 23:09:24 +0200 |
| commit | 56df16f25ab81196669538c648ff466c24a43788 (patch) | |
| tree | 8032c7d621e46b93b6c10a1616d439c48fe240ad /arch/arm/cpu/arm926ejs/mx28/spl_mem_init.c | |
| parent | 531bb825fdee7fd1d14417061f07335787514f20 (diff) | |
| download | u-boot-imx-56df16f25ab81196669538c648ff466c24a43788.zip u-boot-imx-56df16f25ab81196669538c648ff466c24a43788.tar.gz u-boot-imx-56df16f25ab81196669538c648ff466c24a43788.tar.bz2 | |
Fix erroneous 32-bit access to hw_clkctrl_frac0 and hw_clkctrl_frac1 registers
This patch fixes erroneous 32-bit access to registers
hw_clkctrl_frac0 and hw_clkctrl_frac1.
Signed-off-by: Robert Delien <robert@delien.nl>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'arch/arm/cpu/arm926ejs/mx28/spl_mem_init.c')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mx28/spl_mem_init.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/arch/arm/cpu/arm926ejs/mx28/spl_mem_init.c b/arch/arm/cpu/arm926ejs/mx28/spl_mem_init.c index 4af9eb7..0b1c109 100644 --- a/arch/arm/cpu/arm926ejs/mx28/spl_mem_init.c +++ b/arch/arm/cpu/arm926ejs/mx28/spl_mem_init.c @@ -96,22 +96,20 @@ void mx28_mem_init_clock(void) (struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE; /* Gate EMI clock */ - writel(CLKCTRL_FRAC0_CLKGATEEMI, - &clkctrl_regs->hw_clkctrl_frac0_set); + writeb(CLKCTRL_FRAC_CLKGATE, + &clkctrl_regs->hw_clkctrl_frac0_set[CLKCTRL_FRAC0_EMI]); - /* EMI = 205MHz */ - writel(CLKCTRL_FRAC0_EMIFRAC_MASK, - &clkctrl_regs->hw_clkctrl_frac0_set); - writel((0x2a << CLKCTRL_FRAC0_EMIFRAC_OFFSET) & - CLKCTRL_FRAC0_EMIFRAC_MASK, - &clkctrl_regs->hw_clkctrl_frac0_clr); + /* Set fractional divider for ref_emi to 480 * 18 / 21 = 411MHz */ + writeb(CLKCTRL_FRAC_CLKGATE | (21 & CLKCTRL_FRAC_FRAC_MASK), + &clkctrl_regs->hw_clkctrl_frac0[CLKCTRL_FRAC0_EMI]); /* Ungate EMI clock */ - writel(CLKCTRL_FRAC0_CLKGATEEMI, - &clkctrl_regs->hw_clkctrl_frac0_clr); + writeb(CLKCTRL_FRAC_CLKGATE, + &clkctrl_regs->hw_clkctrl_frac0_clr[CLKCTRL_FRAC0_EMI]); early_delay(11000); + /* Set EMI clock divider for EMI clock to 411 / 2 = 205MHz */ writel((2 << CLKCTRL_EMI_DIV_EMI_OFFSET) | (1 << CLKCTRL_EMI_DIV_XTAL_OFFSET), &clkctrl_regs->hw_clkctrl_emi); @@ -128,10 +126,10 @@ void mx28_mem_setup_cpu_and_hbus(void) struct mx28_clkctrl_regs *clkctrl_regs = (struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE; - /* CPU = 454MHz and ungate CPU clock */ - clrsetbits_le32(&clkctrl_regs->hw_clkctrl_frac0, - CLKCTRL_FRAC0_CPUFRAC_MASK | CLKCTRL_FRAC0_CLKGATECPU, - 19 << CLKCTRL_FRAC0_CPUFRAC_OFFSET); + /* Set fractional divider for ref_cpu to 480 * 18 / 19 = 454MHz + * and ungate CPU clock */ + writeb(19 & CLKCTRL_FRAC_FRAC_MASK, + (uint8_t *)&clkctrl_regs->hw_clkctrl_frac0[CLKCTRL_FRAC0_CPU]); /* Set CPU bypass */ writel(CLKCTRL_CLKSEQ_BYPASS_CPU, |