diff options
Diffstat (limited to 'arch/arm/mach-tegra/tegra2_clocks.c')
| -rw-r--r-- | arch/arm/mach-tegra/tegra2_clocks.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c index b79cb93ffd54..2016ba095816 100644 --- a/arch/arm/mach-tegra/tegra2_clocks.c +++ b/arch/arm/mach-tegra/tegra2_clocks.c @@ -69,6 +69,8 @@ #define PERIPH_CLK_SOURCE_MASK (3<<30) #define PERIPH_CLK_SOURCE_SHIFT 30 +#define PERIPH_CLK_SOURCE_PWM_MASK (7<<28) +#define PERIPH_CLK_SOURCE_PWM_SHIFT 28 #define PERIPH_CLK_SOURCE_ENABLE (1<<28) #define PERIPH_CLK_SOURCE_DIVU71_MASK 0xFF #define PERIPH_CLK_SOURCE_DIVU16_MASK 0xFFFF @@ -908,9 +910,20 @@ static void tegra2_periph_clk_init(struct clk *c) u32 val = clk_readl(c->reg); const struct clk_mux_sel *mux = NULL; const struct clk_mux_sel *sel; + u32 shift; + u32 mask; + + if (c->flags & MUX_PWM) { + shift = PERIPH_CLK_SOURCE_PWM_SHIFT; + mask = PERIPH_CLK_SOURCE_PWM_MASK; + } else { + shift = PERIPH_CLK_SOURCE_SHIFT; + mask = PERIPH_CLK_SOURCE_MASK; + } + if (c->flags & MUX) { for (sel = c->inputs; sel->input != NULL; sel++) { - if (val >> PERIPH_CLK_SOURCE_SHIFT == sel->value) + if ((val & mask) >> shift == sel->value) mux = sel; } BUG_ON(!mux); @@ -1023,12 +1036,23 @@ static int tegra2_periph_clk_set_parent(struct clk *c, struct clk *p) { u32 val; const struct clk_mux_sel *sel; + u32 mask, shift; + pr_debug("%s: %s %s\n", __func__, c->name, p->name); + + if (c->flags & MUX_PWM) { + shift = PERIPH_CLK_SOURCE_PWM_SHIFT; + mask = PERIPH_CLK_SOURCE_PWM_MASK; + } else { + shift = PERIPH_CLK_SOURCE_SHIFT; + mask = PERIPH_CLK_SOURCE_MASK; + } + for (sel = c->inputs; sel->input != NULL; sel++) { if (sel->input == p) { val = clk_readl(c->reg); - val &= ~PERIPH_CLK_SOURCE_MASK; - val |= (sel->value) << PERIPH_CLK_SOURCE_SHIFT; + val &= ~mask; + val |= (sel->value) << shift; if (c->refcnt) clk_enable(p); @@ -2156,7 +2180,7 @@ static struct clk tegra_list_clks[] = { PERIPH_CLK("i2s2", "tegra20-i2s.1", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71), PERIPH_CLK("spdif_out", "spdif_out", NULL, 10, 0x108, 100000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71), PERIPH_CLK("spdif_in", "spdif_in", NULL, 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71), - PERIPH_CLK("pwm", "pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_audio_clkm_clk32, MUX | DIV_U71), + PERIPH_CLK("pwm", "pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_audio_clkm_clk32, MUX | DIV_U71 | MUX_PWM), PERIPH_CLK("spi", "spi", NULL, 43, 0x114, 40000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), PERIPH_CLK("xio", "xio", NULL, 45, 0x120, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), PERIPH_CLK("twc", "twc", NULL, 16, 0x12c, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), |
