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clk: tegra: Add SATA seq input control

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This will be used by the powergating driver to ensure proper sequencer
state when the SATA domain is powergated.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Peter De Schrijver 2017-03-15 17:42:05 +02:00 committed by Thierry Reding
parent 68d724cedc
commit 59af78d78d
2 changed files with 26 additions and 0 deletions
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25
drivers/clk/tegra/clk-tegra210.c
View File

@ -181,6 +181,11 @@
#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_SATA_SEQ_IN_SWCTL BIT(4)
#define SATA_PLL_CFG0_SATA_SEQ_RESET_INPUT_VALUE BIT(5)
#define SATA_PLL_CFG0_SATA_SEQ_LANE_PD_INPUT_VALUE BIT(6)
#define SATA_PLL_CFG0_SATA_SEQ_PADPLL_PD_INPUT_VALUE BIT(7)
#define SATA_PLL_CFG0_PADPLL_SLEEP_IDDQ BIT(13)
#define SATA_PLL_CFG0_SEQ_ENABLE BIT(24)
@ -483,6 +488,26 @@ void tegra210_sata_pll_hw_sequence_start(void)
}
EXPORT_SYMBOL_GPL(tegra210_sata_pll_hw_sequence_start);
void tegra210_set_sata_pll_seq_sw(bool state)
{
u32 val;
val = readl_relaxed(clk_base + SATA_PLL_CFG0);
if (state) {
val |= SATA_PLL_CFG0_SATA_SEQ_IN_SWCTL;
val |= SATA_PLL_CFG0_SATA_SEQ_RESET_INPUT_VALUE;
val |= SATA_PLL_CFG0_SATA_SEQ_LANE_PD_INPUT_VALUE;
val |= SATA_PLL_CFG0_SATA_SEQ_PADPLL_PD_INPUT_VALUE;
} else {
val &= ~SATA_PLL_CFG0_SATA_SEQ_IN_SWCTL;
val &= ~SATA_PLL_CFG0_SATA_SEQ_RESET_INPUT_VALUE;
val &= ~SATA_PLL_CFG0_SATA_SEQ_LANE_PD_INPUT_VALUE;
val &= ~SATA_PLL_CFG0_SATA_SEQ_PADPLL_PD_INPUT_VALUE;
}
writel_relaxed(val, clk_base + SATA_PLL_CFG0);
}
EXPORT_SYMBOL_GPL(tegra210_set_sata_pll_seq_sw);
static inline void _pll_misc_chk_default(void __iomem *base,
struct tegra_clk_pll_params *params,
u8 misc_num, u32 default_val, u32 mask)

1
include/linux/clk/tegra.h
View File

@ -125,6 +125,7 @@ extern void tegra210_xusb_pll_hw_control_enable(void);
extern void tegra210_xusb_pll_hw_sequence_start(void);
extern void tegra210_sata_pll_hw_control_enable(void);
extern void tegra210_sata_pll_hw_sequence_start(void);
extern void tegra210_set_sata_pll_seq_sw(bool state);
extern void tegra210_put_utmipll_in_iddq(void);
extern void tegra210_put_utmipll_out_iddq(void);