forked from PAWPAW-Mirror/lib_xua
32 lines
977 B
Plaintext
32 lines
977 B
Plaintext
#include <xs1.h>
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#include <platform.h>
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#include <xs1_su.h>
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#define XS1_SU_PERIPH_USB_ID 0x1
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/* Reboots XMOS device by writing to the PLL config register */
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void device_reboot_implementation(chanend spare)
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{
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#ifdef ARCH_S
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/* Disconnect from bus */
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unsigned data[] = {4};
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write_periph_32(xs1_su, XS1_SU_PERIPH_USB_ID, XS1_SU_PER_UIFM_FUNC_CONTROL_NUM, 1, data);
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#endif
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outct(spare, XS1_CT_END); // have to do this before freeing the chanend
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inct(spare); // Receive end ct from usb_buffer to close down in both directions
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// Need a spare chanend so we can talk to the pll register
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asm("freer res[%0]"::"r"(spare));
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{
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unsigned int pllVal;
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unsigned int tile_id = get_local_tile_id();
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read_sswitch_reg(tile_id, 6, pllVal);
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/* Not this accounts for 2 tiles of an L2.. */
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write_sswitch_reg_no_ack(tile_id^0x8000, 6, pllVal);
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write_sswitch_reg_no_ack(tile_id, 6, pllVal);
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}
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}
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