diff options
| author | Xinyu Chen <xinyu.chen@freescale.com> | 2010-10-19 14:05:46 +0800 |
|---|---|---|
| committer | Xinyu Chen <xinyu.chen@freescale.com> | 2010-10-19 14:05:46 +0800 |
| commit | b866451e8c0100877e52874299fa17c30f78387e (patch) | |
| tree | a0a6e75de783b1c34ca5f8692d4edd73d1159100 /arch | |
| parent | f3e7e14b77b21f693b91eccfa06981878b67906a (diff) | |
ENGR00132761 MX51: correct the debug early uart's clock
As uboot changes the PLL1, this causes the UART1 clock
PRE/PODF divider settings are not correct.
Fix this by set uart's parent to PLL3 as uboot did.
Signed-off-by: Xinyu Chen <xinyu.chen@freescale.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-mx5/clock.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/mach-mx5/clock.c b/arch/arm/mach-mx5/clock.c index 40ea0130a273..aacb6af1ee78 100644 --- a/arch/arm/mach-mx5/clock.c +++ b/arch/arm/mach-mx5/clock.c @@ -4677,8 +4677,8 @@ int __init mx51_clocks_init(unsigned long ckil, unsigned long osc, unsigned long (0 << MXC_CCM_CSCDR1_UART_CLK_PODF_OFFSET); __raw_writel(reg, MXC_CCM_CSCDR1); } else { - /* Move UART to run from PLL1 */ - clk_set_parent(&uart_main_clk, &pll1_sw_clk); + /* Move UART to run from PLL3 */ + clk_set_parent(&uart_main_clk, &pll3_sw_clk); /* Set the UART dividers to divide, * so the UART_CLK is 66.5MHz. @@ -4686,8 +4686,8 @@ int __init mx51_clocks_init(unsigned long ckil, unsigned long osc, unsigned long reg = __raw_readl(MXC_CCM_CSCDR1); reg &= ~MXC_CCM_CSCDR1_UART_CLK_PODF_MASK; reg &= ~MXC_CCM_CSCDR1_UART_CLK_PRED_MASK; - reg |= (5 << MXC_CCM_CSCDR1_UART_CLK_PRED_OFFSET) | - (1 << MXC_CCM_CSCDR1_UART_CLK_PODF_OFFSET); + reg |= (3 << MXC_CCM_CSCDR1_UART_CLK_PRED_OFFSET) | + (0 << MXC_CCM_CSCDR1_UART_CLK_PODF_OFFSET); __raw_writel(reg, MXC_CCM_CSCDR1); } |