This started long before Pi. StrongARM existed 20 years ago and the new generation of application processors which pushed forward ARM started around 2005 (Atmel, TI, Freescale, Qualcomm and others) with the ARM9 core.
Pi entered a mature ecosystem, it just made it a bit more consumer/newbie facing but the system level foundations were all there.
Ironically the Pi isn’t even particularly well supported in terms of drivers compared to commercial offerings.
Pi entered a mature ecosystem, it just made it a bit more consumer/newbie facing but the system level foundations were all there.
Ironically the Pi isn’t even particularly well supported in terms of drivers compared to commercial offerings.