Document FESPI driver. (#334)

Change-Id: Iab8b2cc8a27687a158a6a54a717fac0fe138272f

Author: timsifive

README

@@ -124,11 +124,11 @@ Flash drivers
 -------------
 
 ADUC702x, AT91SAM, ATH79, AVR, CFI, DSP5680xx, EFM32, EM357, eSi-TSMC,
-FM3, FM4, Kinetis, LPC8xx/LPC1xxx/LPC2xxx/LPC541xx, LPC2900, LPCSPIFI,
-Marvell QSPI, Milandr, NIIET, NuMicro, PIC32mx, PSoC4, PSoC5LP, SiM3x,
-Stellaris, STM32, STMSMI, STR7x, STR9x, nRF51; NAND controllers of
-AT91SAM9, LPC3180, LPC32xx, i.MX31, MXC, NUC910, Orion/Kirkwood,
-S3C24xx, S3C6400, XMC1xxx, XMC4xxx.
+FM3, FM4, Freedom E SPI, Kinetis, LPC8xx/LPC1xxx/LPC2xxx/LPC541xx,
+LPC2900, LPCSPIFI, Marvell QSPI, Milandr, NIIET, NuMicro, PIC32mx,
+PSoC4, PSoC5LP, SiM3x, Stellaris, STM32, STMSMI, STR7x, STR9x, nRF51;
+NAND controllers of AT91SAM9, LPC3180, LPC32xx, i.MX31, MXC, NUC910,
+Orion/Kirkwood, S3C24xx, S3C6400, XMC1xxx, XMC4xxx.
 
 
 ==================

doc/openocd.texi

@@ -5292,6 +5292,17 @@ flash bank flash2 ath79 0x20000000 0 0 0 $_TARGETNAME cs2
 
 @end deffn
 
+@deffn {Flash Driver} fespi
+@cindex Freedom E SPI
+@cindex fespi
+
+SiFive's Freedom E SPI controller, used in HiFive and other boards.
+
+@example
+flash bank $_FLASHNAME fespi 0x20000000 0 0 0 $_TARGETNAME
+@end example
+@end deffn
+
 @subsection Internal Flash (Microcontrollers)
 
 @deffn {Flash Driver} aduc702x