EXYNOS: Add clock for I2S
This patch adds clock support for I2S
Signed-off-by: R. Chandrasekar <rcsekar@samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/arch/arm/include/asm/arch-exynos/clk.h b/arch/arm/include/asm/arch-exynos/clk.h
index 5529025..2bf2c10 100644
--- a/arch/arm/include/asm/arch-exynos/clk.h
+++ b/arch/arm/include/asm/arch-exynos/clk.h
@@ -38,5 +38,8 @@
unsigned long get_lcd_clk(void);
void set_lcd_clk(void);
void set_mipi_clk(void);
+void set_i2s_clk_source(void);
+int set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq);
+int set_epll_clk(unsigned long rate);
#endif
diff --git a/arch/arm/include/asm/arch-exynos/clock.h b/arch/arm/include/asm/arch-exynos/clock.h
index fce38ef..ff6781a 100644
--- a/arch/arm/include/asm/arch-exynos/clock.h
+++ b/arch/arm/include/asm/arch-exynos/clock.h
@@ -595,9 +595,38 @@
unsigned int pll_div2_sel;
unsigned char res123[0xf5d8];
};
+
+/* structure for epll configuration used in audio clock configuration */
+struct set_epll_con_val {
+ unsigned int freq_out; /* frequency out */
+ unsigned int en_lock_det; /* enable lock detect */
+ unsigned int m_div; /* m divider value */
+ unsigned int p_div; /* p divider value */
+ unsigned int s_div; /* s divider value */
+ unsigned int k_dsm; /* k value of delta signal modulator */
+};
#endif
#define MPLL_FOUT_SEL_SHIFT 4
+#define EXYNOS5_EPLLCON0_LOCKED_SHIFT 29 /* EPLL Locked bit position*/
+#define TIMEOUT_EPLL_LOCK 1000
+
+#define AUDIO_0_RATIO_MASK 0x0f
+#define AUDIO_1_RATIO_MASK 0x0f
+
+#define AUDIO1_SEL_MASK 0xf
+#define CLK_SRC_SCLK_EPLL 0x7
+
+/* CON0 bit-fields */
+#define EPLL_CON0_MDIV_MASK 0x1ff
+#define EPLL_CON0_PDIV_MASK 0x3f
+#define EPLL_CON0_SDIV_MASK 0x7
+#define EPLL_CON0_MDIV_SHIFT 16
+#define EPLL_CON0_PDIV_SHIFT 8
+#define EPLL_CON0_SDIV_SHIFT 0
+#define EPLL_CON0_LOCK_DET_EN_SHIFT 28
+#define EPLL_CON0_LOCK_DET_EN_MASK 1
+
#define MPLL_FOUT_SEL_MASK 0x1
#define BPLL_FOUT_SEL_SHIFT 0
#define BPLL_FOUT_SEL_MASK 0x1