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--- led_control [2021/02/22 08:17] – biot
+++ led_control [2025/01/06 19:30] (current) – Add LED modes from Realtek docs svanheule
@@ Line 54: / Line 54: @@
 === Global LED control ===
+The SoCs have been designed with the RTL8231 LED expanders in mind as a first-class citizen. A hardware peripheral is present that can keep track of the state of one (or two on RTL93xx) RTL8231 chip(s). The SoC's have dedicated pins and controllers for this task. For rtl930x C1 `LED_MDC` and C2 `LED_MDIO` For rtl931x, AL18 `LED_MDC` and AK18 `LED_MDIO`. This does require the RTL8231 connected to only function as a LED expander. This should not be confused with the dedicated `EXT_GPIO_MDxx` pins!
 Main control register for hardware accelerated LEDs and [[RTL8231]] access.
@@ Line 82: / Line 84: @@
   * 3: Act Rx
   * 4: Act Tx
+  * 5: Col/Full duplex
+  * 6: Full duplex
   * 7: Link 1G
   * 8: Link 100M
@@ Line 91: / Line 95: @@
   * 14: Link/Act 1G/10M
   * 15: Link/Act 100M/10M
+  * 16: Link 10M flashing
+  * 17: Link 100M flashing
+  * 18: Link 1G flashing
+  * 19: Link 10G flashing (RTL839x)
+  * 20: Link 10G (RTL839x)
+  * 21: Link/Act 10G (RTL839x)
   * 31: Off
@@ Line 138: / Line 148: @@
 ==== LEDs on the RTL839x ====
 On the RTL839x ''RTL8390_LED_GLB_CTRL'' has the following bits:
-  * Bits 0-1: Interface selection: Defined by board config variable ''pModel->led.led_if_sel''. ''LED_IF_SEL_SERIAL'': 0; ''LED_IF_SEL_SINGLE_COLOR_SCAN'': 1; ''LED_IF_SEL_BI_COLOR_SCAN'': 2
+  * Bits 0-1: Interface selection: Defined by board config variable ''pModel->led.led_if_sel'':
+    * ''LED_IF_SEL_SERIAL'': 0
+    * ''LED_IF_SEL_SINGLE_COLOR_SCAN'': 1
+    * ''LED_IF_SEL_BI_COLOR_SCAN'': 2
   * Bits 2-3: LED number selection: Number of LEDs per port, configured from ''pModel->led.num''
   * Bit 4: LED MDIO-Clock duty (cycle?)
@@ Line 209: / Line 222: @@
 | 0x25C | ''BUZZER_CTRL'' | RTL8231 buzzer settings shadow register |
+=== Port LED user control ===
+registers, at offsets (0x144 + 4×port). After making modifications to the registers, the new configuration need to be committed by writing 0x1 to LED_SW_CTRL.
+This sets the SW_LED_LOAD bit, updates the output, and self-clears afterwards.
+^ Bits ^ Field description ^ Field values ^
+| 0-2 | LED0 (cop0) control | 0: off \\ 1: toggle every 32ms \\ 2: toggle every 64ms \\ 3: toggle every 128ms \\ 4: toggle every 256ms \\ 5: toggle every 512ms \\ 6: toggle every 1024ms \\ 7: on |
+| 3-5 | LED1 (cop1) control | ::: |
+| 6-8 | LED2 (cop2) control | ::: |
+| 9-11 | LED3 (fib0) control | ::: |
+| 12-14 | LED4 (fib1) control | ::: |
+| 15-17 | LED5 (fib2) control | ::: |
 ==== LEDs on the RTL930x ====
 These registers are at a base address of ''0xBB00C400''.