forked from PAWPAW-Mirror/lib_xua
59 lines
1.9 KiB
Plaintext
59 lines
1.9 KiB
Plaintext
#include <xs1.h>
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#include <platform.h>
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#include <xs1_su.h>
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#include <print.h>
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#define XS1_SU_PERIPH_USB_ID 0x1
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/* Note, this function is prototyped in xs1.h only from 13 tools onwards */
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unsigned get_tile_id(tileref);
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extern tileref tile[];
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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 XUD_ON_U_SERIES
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/* Disconnect from bus */
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unsigned data[] = {4};
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write_periph_32(usb_tile, XS1_SU_PERIPH_USB_ID, XS1_SU_PER_UIFM_FUNC_CONTROL_NUM, 1, data);
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/* Ideally we would reset SU1 here but then we loose power to the xcore and therefore the DFU flag */
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/* Disable USB and issue reset to xcore only - not analogue chip */
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write_node_config_reg(usb_tile, XS1_SU_CFG_RST_MISC_NUM,0b10);
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#else
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unsigned int pllVal;
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unsigned int localTileId = get_local_tile_id();
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unsigned int tileId;
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unsigned int tileArrayLength;
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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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/* Find size of tile array - note in future tools versions this will be available from platform.h */
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asm volatile ("ldc %0, tile.globound":"=r"(tileArrayLength));
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/* Reset all remote tiles */
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for(int i = 0; i< tileArrayLength; i++)
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{
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/* Cannot cast tileref to unsigned! */
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tileId = get_tile_id(tile[i]);
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/* Do not reboot local tile yet! */
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if(localTileId != tileId)
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{
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read_sswitch_reg(tileId, 6, pllVal);
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write_sswitch_reg_no_ack(tileId, 6, pllVal);
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}
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}
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/* Finally reboot this tile! */
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read_sswitch_reg(localTileId, 6, pllVal);
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write_sswitch_reg_no_ack(localTileId, 6, pllVal);
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#endif
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}
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