diff options
| author | Lubomir Rintel <lkundrak@v3.sk> | 2020-05-20 00:41:45 +0200 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2020-05-27 17:55:12 -0700 |
| commit | 71d8254af9d1c84d88523a28e6ab03878612e4a5 (patch) | |
| tree | 3d1cfffcc98d2a9e37d4c58a65de66cefb6d0133 /drivers/clk | |
| parent | 2766c198150e33018e2e008c6a3355e8c19e6af4 (diff) | |
clk: mmp2: Add the I2S clocks
A pair of fractional clock sources for PLLs and gates.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lkml.kernel.org/r/20200519224151.2074597-8-lkundrak@v3.sk
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/mmp/clk-of-mmp2.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/clk/mmp/clk-of-mmp2.c b/drivers/clk/mmp/clk-of-mmp2.c index ac88ea99b7c6..dcdff06a698a 100644 --- a/drivers/clk/mmp/clk-of-mmp2.c +++ b/drivers/clk/mmp/clk-of-mmp2.c @@ -67,6 +67,9 @@ #define MPMU_POSR 0x10 #define MPMU_UART_PLL 0x14 #define MPMU_PLL2_CR 0x34 +#define MPMU_I2S0_PLL 0x40 +#define MPMU_I2S1_PLL 0x44 +#define MPMU_ACGR 0x1024 /* MMP3 specific below */ #define MPMU_PLL3_CR 0x50 #define MPMU_PLL3_CTRL1 0x58 @@ -91,6 +94,7 @@ static struct mmp_param_fixed_rate_clk fixed_rate_clks[] = { {MMP2_CLK_CLK32, "clk32", NULL, 0, 32768}, {MMP2_CLK_VCTCXO, "vctcxo", NULL, 0, 26000000}, {MMP2_CLK_USB_PLL, "usb_pll", NULL, 0, 480000000}, + {0, "i2s_pll", NULL, 0, 99666667}, }; static struct mmp_param_pll_clk pll_clks[] = { @@ -139,6 +143,34 @@ static struct mmp_clk_factor_tbl uart_factor_tbl[] = { {.num = 3521, .den = 689}, /*19.23MHZ */ }; +static struct mmp_clk_factor_masks i2s_factor_masks = { + .factor = 2, + .num_mask = 0x7fff, + .den_mask = 0x1fff, + .num_shift = 0, + .den_shift = 15, + .enable_mask = 0xd0000000, +}; + +static struct mmp_clk_factor_tbl i2s_factor_tbl[] = { + {.num = 24868, .den = 511}, /* 2.0480 MHz */ + {.num = 28003, .den = 793}, /* 2.8224 MHz */ + {.num = 24941, .den = 1025}, /* 4.0960 MHz */ + {.num = 28003, .den = 1586}, /* 5.6448 MHz */ + {.num = 31158, .den = 2561}, /* 8.1920 MHz */ + {.num = 16288, .den = 1845}, /* 11.2896 MHz */ + {.num = 20772, .den = 2561}, /* 12.2880 MHz */ + {.num = 8144, .den = 1845}, /* 22.5792 MHz */ + {.num = 10386, .den = 2561}, /* 24.5760 MHz */ +}; + +static DEFINE_SPINLOCK(acgr_lock); + +static struct mmp_param_gate_clk mpmu_gate_clks[] = { + {MMP2_CLK_I2S0, "i2s0_clk", "i2s0_pll", CLK_SET_RATE_PARENT, MPMU_ACGR, 0x200000, 0x200000, 0x0, 0, &acgr_lock}, + {MMP2_CLK_I2S1, "i2s1_clk", "i2s1_pll", CLK_SET_RATE_PARENT, MPMU_ACGR, 0x100000, 0x100000, 0x0, 0, &acgr_lock}, +}; + static void mmp2_main_clk_init(struct mmp2_clk_unit *pxa_unit) { struct clk *clk; @@ -166,6 +198,20 @@ static void mmp2_main_clk_init(struct mmp2_clk_unit *pxa_unit) &uart_factor_masks, uart_factor_tbl, ARRAY_SIZE(uart_factor_tbl), NULL); mmp_clk_add(unit, MMP2_CLK_UART_PLL, clk); + + mmp_clk_register_factor("i2s0_pll", "pll1_4", + CLK_SET_RATE_PARENT, + pxa_unit->mpmu_base + MPMU_I2S0_PLL, + &i2s_factor_masks, i2s_factor_tbl, + ARRAY_SIZE(i2s_factor_tbl), NULL); + mmp_clk_register_factor("i2s1_pll", "pll1_4", + CLK_SET_RATE_PARENT, + pxa_unit->mpmu_base + MPMU_I2S1_PLL, + &i2s_factor_masks, i2s_factor_tbl, + ARRAY_SIZE(i2s_factor_tbl), NULL); + + mmp_register_gate_clks(unit, mpmu_gate_clks, pxa_unit->mpmu_base, + ARRAY_SIZE(mpmu_gate_clks)); } static DEFINE_SPINLOCK(uart0_lock); |