请问Timer如何配置为PWM模式？应该怎么操作？

您好，如果想在linux初始化的过程中，设置TIMER7为PWM输出方式，该改哪里呢？

上面给出来的流程基本上都是寄存器级的操作，只有设置pinmux那处，就是改control module下面的相关寄存器。其他部分，对应的你在Linux初始化中这样操作就可以了。

我目前是在u-boot里面直接操作寄存器的方式实现的，

这样有个问题，linux里面diable_clk_unused会把timer7的时钟关闭，

因为我把 static __initdata struct omap_hwmod *am33xx_hwmods[] 里面的timer7删除了，

我的想法是，linux初始化的时候肯定可以直接设置timer7的寄存器，

但是我一直没找到在哪个文件里面定义这些寄存器的实际值。

执行第四步时(devmem2 0x44e00510 w 0x12),报下列错误 /dev/mem openedMemory mapped at address 0xb6f29000.Read at address 0x44E00510 (0xb6f29510): 0x00000000Write at address 0x44E00510 (0xb6f29510): 0x00000012, readback 0x00000012root@am437x-evm:/# devmem2 0x4804403C w 0xFFFFC000/dev/mem opened.[ 3212.498147] Unhandled fault: external abort on non-linefetch (0x1018) at 0xb6ff303c[ 3212.507120] ------------[ cut here ]------------[ 3212.511772] WARNING: CPU: 0 PID: 1699 at drivers/bus/omap_l3_noc.c:147 l3_interrupt_handler+0x234/0x35c()[ 3212.521379] 44000000.ocp:L3 Custom Error: MASTER M2 (64-bit) TARGET L4_PER_0 (Read): Data Access in User mode during Functional access[ 3212.533512] Modules linked in: btwilink bluetooth ads7846 c_can_platform c_can dwc3_omap can_dev snd_soc_davinci_mcasp 6lowpan_iphc [last unloaded: dmtimer_pwm][ 3212.547991] CPU: 0 PID: 1699 Comm: devmem2 Tainted: G W O 3.14.43 #6[ 3212.555066] Backtrace: [ 3212.557544] [] (dump_backtrace) from [] (show_stack+0x18/0x1c)

执行第四步时(devmem2 0x44e00510 w 0x12),报下列错误 /dev/mem openedMemory mapped at address 0xb6f29000.Read at address 0x44E00510 (0xb6f29510): 0x00000000Write at address 0x44E00510 (0xb6f29510): 0x00000012, readback 0x00000012root@am437x-evm:/# devmem2 0x4804403C w 0xFFFFC000/dev/mem opened.[ 3212.498147] Unhandled fault: external abort on non-linefetch (0x1018) at 0xb6ff303c[ 3212.507120] ------------[ cut here ]------------[ 3212.511772] WARNING: CPU: 0 PID: 1699 at drivers/bus/omap_l3_noc.c:147 l3_interrupt_handler+0x234/0x35c()[ 3212.521379] 44000000.ocp:L3 Custom Error: MASTER M2 (64-bit) TARGET L4_PER_0 (Read): Data Access in User mode during Functional access[ 3212.533512] Modules linked in: btwilink bluetooth ads7846 c_can_platform c_can dwc3_omap can_dev snd_soc_davinci_mcasp 6lowpan_iphc [last unloaded: dmtimer_pwm][ 3212.547991] CPU: 0 PID: 1699 Comm: devmem2 Tainted: G W O 3.14.43 #6[ 3212.555066] Backtrace: [ 3212.557544] [] (dump_backtrace) from [] (show_stack+0x18/0x1c)

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