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Diffstat (limited to 'firmware/target/arm/imx31/gigabeat-s/kernel-imx31.c')
-rw-r--r--firmware/target/arm/imx31/gigabeat-s/kernel-imx31.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/firmware/target/arm/imx31/gigabeat-s/kernel-imx31.c b/firmware/target/arm/imx31/gigabeat-s/kernel-imx31.c
index a2f3d779eb..01e9b8b721 100644
--- a/firmware/target/arm/imx31/gigabeat-s/kernel-imx31.c
+++ b/firmware/target/arm/imx31/gigabeat-s/kernel-imx31.c
@@ -38,11 +38,11 @@ static __attribute__((interrupt("IRQ"))) void EPIT1_HANDLER(void)
38 38
39void tick_start(unsigned int interval_in_ms) 39void tick_start(unsigned int interval_in_ms)
40{ 40{
41 imx31_clkctl_module_clock_gating(CG_EPIT1, CGM_ON_ALL); /* EPIT1 module 41 ccm_module_clock_gating(CG_EPIT1, CGM_ON_RUN_WAIT); /* EPIT1 module
42 clock ON - before writing 42 clock ON - before writing
43 regs! */ 43 regs! */
44 EPITCR1 &= ~(EPITCR_OCIEN | EPITCR_EN); /* Disable the counter */ 44 EPITCR1 &= ~(EPITCR_OCIEN | EPITCR_EN); /* Disable the counter */
45 CLKCTL_WIMR0 &= ~WIM_IPI_INT_EPIT1; /* Clear wakeup mask */ 45 CCM_WIMR0 &= ~CCM_WIMR0_IPI_INT_EPIT1; /* Clear wakeup mask */
46 46
47 /* mcu_main_clk = 528MHz = 27MHz * 2 * ((9 + 7/9) / 1) 47 /* mcu_main_clk = 528MHz = 27MHz * 2 * ((9 + 7/9) / 1)
48 * CLKSRC = ipg_clk = 528MHz / 4 / 2 = 66MHz, 48 * CLKSRC = ipg_clk = 528MHz / 4 / 2 = 66MHz,
@@ -53,13 +53,14 @@ void tick_start(unsigned int interval_in_ms)
53 * Compare interrupt enabled, 53 * Compare interrupt enabled,
54 * Count from load value */ 54 * Count from load value */
55 EPITCR1 = EPITCR_CLKSRC_IPG_CLK | EPITCR_WAITEN | EPITCR_IOVW | 55 EPITCR1 = EPITCR_CLKSRC_IPG_CLK | EPITCR_WAITEN | EPITCR_IOVW |
56 EPITCR_PRESCALER(2640-1) | EPITCR_RLD | EPITCR_OCIEN | 56 (2640-1) << EPITCR_PRESCALER_POS | EPITCR_RLD | EPITCR_OCIEN |
57 EPITCR_ENMOD; 57 EPITCR_ENMOD;
58 58
59 EPITLR1 = interval_in_ms*25; /* Count down from interval */ 59 EPITLR1 = interval_in_ms*25; /* Count down from interval */
60 EPITCMPR1 = 0; /* Event when counter reaches 0 */ 60 EPITCMPR1 = 0; /* Event when counter reaches 0 */
61 EPITSR1 = EPITSR_OCIF; /* Clear any pending interrupt */ 61 EPITSR1 = EPITSR_OCIF; /* Clear any pending interrupt */
62 avic_enable_int(EPIT1, IRQ, 7, EPIT1_HANDLER); 62 avic_enable_int(INT_EPIT1, INT_TYPE_IRQ, INT_PRIO_DEFAULT,
63 EPIT1_HANDLER);
63 EPITCR1 |= EPITCR_EN; /* Enable the counter */ 64 EPITCR1 |= EPITCR_EN; /* Enable the counter */
64} 65}
65 66
@@ -73,9 +74,9 @@ void kernel_device_init(void)
73#ifdef BOOTLOADER 74#ifdef BOOTLOADER
74void tick_stop(void) 75void tick_stop(void)
75{ 76{
76 avic_disable_int(EPIT1); /* Disable insterrupt */ 77 avic_disable_int(INT_EPIT1); /* Disable insterrupt */
77 EPITCR1 &= ~(EPITCR_OCIEN | EPITCR_EN); /* Disable counter */ 78 EPITCR1 &= ~(EPITCR_OCIEN | EPITCR_EN); /* Disable counter */
78 EPITSR1 = EPITSR_OCIF; /* Clear pending */ 79 EPITSR1 = EPITSR_OCIF; /* Clear pending */
79 imx31_clkctl_module_clock_gating(CG_EPIT1, CGM_OFF); /* Turn off module clock */ 80 ccm_module_clock_gating(CG_EPIT1, CGM_OFF); /* Turn off module clock */
80} 81}
81#endif 82#endif