diff options
| author | Mikko Perttunen <mperttunen@nvidia.com> | 2014-07-08 07:30:15 (GMT) |
|---|---|---|
| committer | Peter De Schrijver <pdeschrijver@nvidia.com> | 2014-07-08 08:29:55 (GMT) |
| commit | 0e548d50b95b59ccf123984bc44f17da72b12cdd (patch) | |
| tree | d41307b52bd670f755c8c6f06498037e3d743595 /drivers/clk/tegra/clk-pll.c | |
| parent | 9f0030c8ad0ce357e8fc8c71ec6b4958041afccf (diff) | |
| download | linux-0e548d50b95b59ccf123984bc44f17da72b12cdd.tar.xz | |
clk: tegra: Use XUSB-compatible SATA PLL sequence
Use a sequence for enabling hardware control of the SATA PLL
that works both when using the SATA lane with SATA and when
using it with XUSB.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Diffstat (limited to 'drivers/clk/tegra/clk-pll.c')
| -rw-r--r-- | drivers/clk/tegra/clk-pll.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c index f070c36..c7c6d8f 100644 --- a/drivers/clk/tegra/clk-pll.c +++ b/drivers/clk/tegra/clk-pll.c @@ -112,6 +112,9 @@ #define SATA_PLL_CFG0 0x490 #define SATA_PLL_CFG0_PADPLL_RESET_SWCTL BIT(0) +#define SATA_PLL_CFG0_PADPLL_USE_LOCKDET BIT(2) +#define SATA_PLL_CFG0_SEQ_ENABLE BIT(24) +#define SATA_PLL_CFG0_SEQ_START_STATE BIT(25) #define PLLE_MISC_PLLE_PTS BIT(8) #define PLLE_MISC_IDDQ_SW_VALUE BIT(13) @@ -1367,6 +1370,14 @@ static int clk_plle_tegra114_enable(struct clk_hw *hw) /* Enable hw control of SATA pll */ val = pll_readl(SATA_PLL_CFG0, pll); val &= ~SATA_PLL_CFG0_PADPLL_RESET_SWCTL; + val |= SATA_PLL_CFG0_PADPLL_USE_LOCKDET; + val |= SATA_PLL_CFG0_SEQ_START_STATE; + pll_writel(val, SATA_PLL_CFG0, pll); + + udelay(1); + + val = pll_readl(SATA_PLL_CFG0, pll); + val |= SATA_PLL_CFG0_SEQ_ENABLE; pll_writel(val, SATA_PLL_CFG0, pll); out: |