diff options
| author | Peng Fan <Peng.Fan@freescale.com> | 2015-07-01 17:01:50 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2015-07-10 09:36:16 +0200 |
| commit | 19c6ec70c59da076f0e516841caa7d9c14f501b4 (patch) | |
| tree | 61ad0540e021f602870359a58b6050cf386c8b82 /arch/arm/cpu | |
| parent | 2d59acc70f76e6d52cc9a226c55539c9353a23cb (diff) | |
imx: mx6 add i2c4 clock support for i.MX6SX
Add I2C4 clock support for i.MX6SX. Since we use runtime check,
but not macro, we need to remove `#ifdef ..` in crm_regs.h, or
gcc will fail to compile the code succesfully.
Making the macros only for i.MX6SX open to other i.MX6x maybe not
a good choice, but we have runtime check.
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/clock.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index 1134770286..b4618989d9 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -126,6 +126,7 @@ int enable_i2c_clk(unsigned char enable, unsigned i2c_num) { u32 reg; u32 mask; + u32 *addr; if (i2c_num > 3) return -EINVAL; @@ -140,14 +141,19 @@ int enable_i2c_clk(unsigned char enable, unsigned i2c_num) reg &= ~mask; __raw_writel(reg, &imx_ccm->CCGR2); } else { - mask = MXC_CCM_CCGR_CG_MASK - << (MXC_CCM_CCGR1_I2C4_SERIAL_OFFSET); - reg = __raw_readl(&imx_ccm->CCGR1); + if (is_cpu_type(MXC_CPU_MX6SX)) { + mask = MXC_CCM_CCGR6_I2C4_MASK; + addr = &imx_ccm->CCGR6; + } else { + mask = MXC_CCM_CCGR1_I2C4_SERIAL_MASK; + addr = &imx_ccm->CCGR1; + } + reg = __raw_readl(addr); if (enable) reg |= mask; else reg &= ~mask; - __raw_writel(reg, &imx_ccm->CCGR1); + __raw_writel(reg, addr); } return 0; } |