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rp2040: Initial rp2350 support

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2024-10-25 14:43:05 -04:00
parent 61f81bdb26
commit 06bb49f135
6 changed files with 62 additions and 24 deletions
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16
src/rp2040/main.c
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@@ -15,6 +15,10 @@
#include "internal.h" // enable_pclock
#include "sched.h" // sched_main
#if !CONFIG_MACH_RP2040
#include "hardware/structs/ticks.h" // ticks_hw
#endif
/****************************************************************
* Ram IRQ vector table
@@ -46,7 +50,8 @@ bootloader_request(void)
watchdog_hw->ctrl = 0;
try_request_canboot();
// Use the bootrom-provided code to reset into BOOTSEL mode
reset_to_usb_boot(0, 0);
if (CONFIG_MACH_RP2040)
reset_to_usb_boot(0, 0);
}
@@ -55,7 +60,7 @@ bootloader_request(void)
****************************************************************/
#define FREQ_XOSC 12000000
#define FREQ_SYS 125000000
#define FREQ_SYS (CONFIG_MACH_RP2040 ? 125000000 : CONFIG_CLOCK_FREQ)
#define FREQ_USB 48000000
void
@@ -85,7 +90,7 @@ xosc_setup(void)
xosc_hw->startup = DIV_ROUND_UP(FREQ_XOSC, 1000 * 256); // 1ms
xosc_hw->ctrl = (XOSC_CTRL_FREQ_RANGE_VALUE_1_15MHZ
| (XOSC_CTRL_ENABLE_VALUE_ENABLE << XOSC_CTRL_ENABLE_LSB));
while(!(xosc_hw->status & XOSC_STATUS_STABLE_BITS))
while (!(xosc_hw->status & XOSC_STATUS_STABLE_BITS))
;
}
@@ -159,7 +164,12 @@ clock_setup(void)
cref->ctrl = CLOCKS_CLK_REF_CTRL_SRC_VALUE_XOSC_CLKSRC;
while (!(cref->selected & (1 << 2)))
;
#if CONFIG_MACH_RP2040
watchdog_hw->tick = 1 | WATCHDOG_TICK_ENABLE_BITS;
#else
ticks_hw->ticks[TICK_WATCHDOG].cycles = 1;
ticks_hw->ticks[TICK_WATCHDOG].ctrl = TICKS_WATCHDOG_CTRL_ENABLE_BITS;
#endif
// Enable GPIO control
enable_pclock(RESETS_RESET_IO_BANK0_BITS | RESETS_RESET_PADS_BANK0_BITS);