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Diffstat (limited to 'tools/proxyclient/experiments/spi.py')
| -rw-r--r-- | tools/proxyclient/experiments/spi.py | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/tools/proxyclient/experiments/spi.py b/tools/proxyclient/experiments/spi.py new file mode 100644 index 0000000..82d9528 --- /dev/null +++ b/tools/proxyclient/experiments/spi.py @@ -0,0 +1,182 @@ +import sys, pathlib +sys.path.append(str(pathlib.Path(__file__).resolve().parents[1])) + +from m1n1.setup import * +from m1n1 import asm +from m1n1.shell import run_shell +from m1n1.gpiola import GPIOLogicAnalyzer +from m1n1.hw.spi import * + +p.smp_start_secondaries() + +p.set32(0x28e580208, 1<<31) +p.clear32(0x28e580208, 1<<31) + +spi = u.adt["arm-io/spi3"].get_reg(0)[0] +regs = SPIRegs(u, spi) + +mon.add(spi, 0x10) +mon.add(spi + 0x30, 0x10) +mon.add(spi + 0x40, 0x400) + +aic = u.adt["arm-io/aic"].get_reg(0)[0] +mon.add(aic + 0x6800 + (1109 // 32) * 4, 4) + +gpio = u.adt["arm-io/gpio0"].get_reg(0)[0] + +mon.add(gpio, 0x1c8) +mon.add(gpio+0x1e0, 0x300) + +mon.poll() + +m = GPIOLogicAnalyzer(u, "arm-io/gpio0", + pins={"miso": 0x34, "mosi": 0x35, "clk": 0x36, "cs": 0x37}, + #pins={"miso": 0xa, "mosi": 0xb, "clk": 0x20, "cs": 0x21}, + #pins={"clk": 46, "mosi": 47, "miso": 48, "cs": 49}, + div=1, on_pin_change=False) + +#p.write32(spi + 0x100, 0xffffffff) + +regs.CTRL.val = 0xc +regs.PIN.val = 0x2 +regs.CONFIG.val = 0x20 | (1<<15) | 6 +regs.CONFIG.val = 0x20 | (1<<15) | 4 +regs.CONFIG.val = 0x20 | (1<<15) | 2 +regs.CONFIG.val = 0x20 | (3<<15) | 0 + +def try_all_bits(): + for i in range(0, 0x200, 4): + v = p.read32(spi + i) + for j in range(32): + p.write32(spi + i, v ^ (1<<j)) + print(f"{i:4x}:{v:8x}:{j:2d} FIFO level:", regs.FIFO_LEVEL.reg.LEVEL_TX) + mon.poll() + p.write32(spi + i, v) + + +m.regs = { + "CTRL": (spi + 0x00, R_CTRL), + "STATUS": (spi + 0x08, R_STATUS), + "RXCNT": (spi + 0x34), + "TXCNT": (spi + 0x4c), + "FIFO_STAT": (spi + 0x10c, R_FIFO_STAT), + "ISTATUS1": (spi + 0x134, R_ISTATUS1), + "ISTATUS2": (spi + 0x13c, R_ISTATUS2), + "XFSTATUS": (spi + 0x1c0), + "SHIFTCONFIG": (spi + 0x150), + "PINCONFIG": (spi + 0x154), + "PIN": (spi + 0xc), + "3c": (spi + 0x3c), + "DIVSTATUS": (spi + 0x1e0, R_DIVSTATUS) +} + +m.regs = {} + +m.start(300000, bufsize=0x80000) + + +regs.STATUS.val = 0xffffffff +regs.ISTATUS1.val = 0xffffffff +regs.ISTATUS2.val = 0xffffffff + +regs.CLKDIV.val = 0xfff +regs.INTER_DLY.val = 0x1000 + +regs.SHIFTCONFIG.val = 0x20fcf7 + +regs.PIN.val = 0x2 +print("pinconfig", hex(regs.PINCONFIG.val)) +regs.PINCONFIG.val = 0x100 +#regs.PINCONFIG.val = 0x2-7 +print("pinconfig", hex(regs.PINCONFIG.val)) +print("shiftconfig", hex(regs.SHIFTCONFIG.val)) + +#regs.PIN.val = 0x0 +#regs.PIN.val = 0x2 +# auto_cs OR pin_cs + +#p.write32(spi + 0x150, 0x80c07) +#p.write32(spi + 0x150, 0x88c07) +print(hex(p.read32(spi + 0x150))) + +#p.write32(spi + 0x160, 0) +p.write32(spi + 0x160, 0xfff0020) +p.write32(spi + 0x168, 0xffffb20) +#p.write32(spi + 0x164, 0x06000210) +#p.write32(spi + 0x180, 0x02000000) +#p.write32(spi + 0x18c, 0x500) +#regs.INTER_DLY2 = 0x20000001 + +p.write32(spi + 0x200, 0x0010) + +p.write32(spi + 0x3c, 0xffffffff) + +regs.PINCONFIG.val = 0x002 +regs.PINCONFIG.val = 0x200 + + +#p.write32(0x28e0380bc, 0x80100000) +#p.write32(0x28e0380c4, 0x80100000) + +data = b"Asahi Linux" + +for i in range(2): + for j in data: + regs.TXDATA.val = j + regs.RXCNT.val = len(data) + regs.TXCNT.val = len(data) + + regs.STATUS.val = 0xffffffff + regs.ISTATUS1.val = 0xffffffff + regs.ISTATUS2.val = 0xffffffff + + regs.PIN.val = 0x0 + regs.CTRL.val = 0x1 + #regs.TXDATA.val = 0xff + #regs.TXDATA.val = 0xff + + i = 0 + while regs.TXCNT.val != 0: + print(f"{regs.TXCNT.val:#x} {regs.FIFO_STAT.reg} {regs.STATUS.val:#x} {regs.ISTATUS2.val:#x} {p.read32(spi + 0x134):#x}") + regs.STATUS.val = 0xffffffff + regs.ISTATUS1.val = 0xffffffff + regs.ISTATUS2.val = 0xffffffff + #regs.CTRL.val = 0x0 + #time.sleep(0.1) + #regs.CTRL.val = 0x1[ + print(hex(i)) + #p.write32(spi + i, 0xffffffff) + #p.write32(spi + i, 0) + i += 4 + if i > 0x100: + break + time.sleep(0.001) + print(f"{regs.RXCNT.val:#x} {regs.FIFO_STAT.reg} {regs.STATUS.val:#x} {regs.ISTATUS2.val:#x}") + regs.STATUS.val = 0xffffffff + regs.ISTATUS1.val = 0xffffffff + regs.ISTATUS2.val = 0xffffffff + + mon.poll() + + while regs.FIFO_STAT.reg.LEVEL_RX: + print("RX", hex(regs.RXDATA.val)) + + regs.CTRL.val = 0 + +m.complete() +m.show() + +def poll(count=1000): + lval = None + for i in range(count): + pins = 0x35, 0x36, 0x37 + vals = [p.read32(gpio + 4 * pin) & 1 for pin in pins] + if vals != lval: + print(f"{i:6d}: {vals}") + lval = vals + +mon.poll() + +#run_shell(globals(), msg="Have fun!") + + |