From a0849fee9f4b268ccc9798c70c654a835f8e20c8 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Tue, 10 Jul 2018 22:08:03 +0700
Subject: [PATCH] add nrf errata check temporarily part of hal_nrf

---
 src/portable/nordic/nrf5x/dcd_nrf5x.c |  1 -
 src/portable/nordic/nrf5x/hal_nrf5x.c | 45 ++++++++++++++++++++++++++-
 2 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/src/portable/nordic/nrf5x/dcd_nrf5x.c b/src/portable/nordic/nrf5x/dcd_nrf5x.c
index 468dd7d5..db424f65 100644
--- a/src/portable/nordic/nrf5x/dcd_nrf5x.c
+++ b/src/portable/nordic/nrf5x/dcd_nrf5x.c
@@ -42,7 +42,6 @@
 #include "nrf_power.h"
 #include "nrf_usbd.h"
 #include "nrf_clock.h"
-#include "nrf_drv_usbd_errata.h"
 
 #include "device/dcd.h"
 #include "device/usbd_pvt.h" // to use defer function helper
diff --git a/src/portable/nordic/nrf5x/hal_nrf5x.c b/src/portable/nordic/nrf5x/hal_nrf5x.c
index 68e19a42..c1d8f031 100644
--- a/src/portable/nordic/nrf5x/hal_nrf5x.c
+++ b/src/portable/nordic/nrf5x/hal_nrf5x.c
@@ -42,7 +42,6 @@
 #include "nrf_gpio.h"
 #include "nrf_clock.h"
 #include "nrf_usbd.h"
-#include "nrf_drv_usbd_errata.h"
 
 #ifdef SOFTDEVICE_PRESENT
 #include "nrf_sdm.h"
@@ -70,6 +69,50 @@ enum {
  *------------------------------------------------------------------*/
 void tusb_hal_nrf_power_event(uint32_t event);
 
+
+/*------------------------------------------------------------------*/
+/* Errata check from nrf_drv_usbd_errata.h
+ *------------------------------------------------------------------*/
+
+/**
+ * @brief Internal auxiliary function to check if the program is running on NRF52840 chip
+ * @retval true  It is NRF52480 chip
+ * @retval false It is other chip
+ */
+static inline bool nrf_drv_usbd_errata_type_52840(void)
+{
+    return ((((*(uint32_t *)0xF0000FE0) & 0xFF) == 0x08) &&
+        (((*(uint32_t *)0xF0000FE4) & 0x0F) == 0x0));
+}
+
+/**
+ * @brief Internal auxiliary function to check if the program is running on first final product of
+ *        NRF52840 chip
+ * @retval true  It is NRF52480 chip and it is first final product
+ * @retval false It is other chip
+ */
+static inline bool nrf_drv_usbd_errata_type_52840_fp1(void)
+{
+    return ( nrf_drv_usbd_errata_type_52840() &&
+               ( ((*(uint32_t *)0xF0000FE8) & 0xF0) == 0x20 ) &&
+               ( ((*(uint32_t *)0xF0000FEC) & 0xF0) == 0x00 ) );
+}
+
+static inline bool nrf_drv_usbd_errata_166(void)
+{
+  return true;
+}
+
+static inline bool nrf_drv_usbd_errata_171(void)
+{
+  return true;
+}
+
+static inline bool nrf_drv_usbd_errata_187(void)
+{
+  return nrf_drv_usbd_errata_type_52840_fp1();
+}
+
 /*------------------------------------------------------------------*/
 /* HFCLK helper
  *------------------------------------------------------------------*/