diff options
| author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-09-05 11:15:26 +0200 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-09-05 11:15:26 +0200 |
| commit | 19d829fa60fc4e6df514a046142faaaf9fc8185d (patch) | |
| tree | 295c75b0d9f3c7180f23ec131442286cf91db5b1 /arch/arm/cpu/armv7/mx6/soc.c | |
| parent | e62d5fb0da76ef168e90cae9bbbda80349aaf137 (diff) | |
| parent | 8467faef7fce8c5faad7224b7737a58e16c52186 (diff) | |
Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'
Conflicts:
drivers/serial/serial.c
The conflict above was a trivial case of adding one init
function in each branch, and manually resolved in merge.
Diffstat (limited to 'arch/arm/cpu/armv7/mx6/soc.c')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/soc.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 8150bffb8c..a3902962b5 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -213,6 +213,34 @@ const struct boot_mode soc_boot_modes[] = { void s_init(void) { + struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR; + int is_6q = is_cpu_type(MXC_CPU_MX6Q); + u32 mask480; + u32 mask528; + + /* Due to hardware limitation, on MX6Q we need to gate/ungate all PFDs + * to make sure PFD is working right, otherwise, PFDs may + * not output clock after reset, MX6DL and MX6SL have added 396M pfd + * workaround in ROM code, as bus clock need it + */ + + mask480 = ANATOP_PFD_CLKGATE_MASK(0) | + ANATOP_PFD_CLKGATE_MASK(1) | + ANATOP_PFD_CLKGATE_MASK(2) | + ANATOP_PFD_CLKGATE_MASK(3); + mask528 = ANATOP_PFD_CLKGATE_MASK(0) | + ANATOP_PFD_CLKGATE_MASK(1) | + ANATOP_PFD_CLKGATE_MASK(3); + + /* + * Don't reset PFD2 on DL/S + */ + if (is_6q) + mask528 |= ANATOP_PFD_CLKGATE_MASK(2); + writel(mask480, &anatop->pfd_480_set); + writel(mask528, &anatop->pfd_528_set); + writel(mask480, &anatop->pfd_480_clr); + writel(mask528, &anatop->pfd_528_clr); } #ifdef CONFIG_IMX_HDMI |