ce13d4716a
OMAP3xxx and OMAP4430 UART IP blocks have a restriction wrt RX FIFO. Empty RX fifo read causes an abort. OMAP3xxx: UART IP revision >= 0x52 have this issue MVR register format is: Bits Field Name Description Type Reset 31:8 RESERVED RO 0x0 7:4 MAJOR Major revision number of the module. RO 0x-- 3:0 MINOR Minor revision number of the module. RO 0x-- OMAP4xxx: All revisions have this issue Revision id check is not used as the format of MVR resigster has changed For omap4 MVR register reads as: 0x50410602 => Revision id = 0x0602 Format of MVR register on omap4 is: (Courtesy: Cousson, Benoit) Bits Field Name Description Type Reset 31:30 SCHEME Scheme revision number of module RO 0x1 29:28 RESERVED RO 0x1 27:16 FUNC Function revision number of module RO 0x041 15:11 RTL Rtl revision number of module RO 0x00 10:8 MAJOR Major revision number of the module. RO 0x6 7:6 CUSTOM Custom revision number of the module. RO 0x0 5:0 MINOR Minor revision number of the module. RO 0x02 Override the default 8250 read handler: mem_serial_in() by a custom handler: serial_in_8250() which makes sure that RX fifo is not read when empty tested on zoom3(3630) board Cc: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> |
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.. | ||
boot | ||
common | ||
configs | ||
include/asm | ||
kernel | ||
lib | ||
mach-aaec2000 | ||
mach-at91 | ||
mach-bcmring | ||
mach-clps711x | ||
mach-davinci | ||
mach-dove | ||
mach-ebsa110 | ||
mach-ep93xx | ||
mach-footbridge | ||
mach-gemini | ||
mach-h720x | ||
mach-integrator | ||
mach-iop13xx | ||
mach-iop32x | ||
mach-iop33x | ||
mach-ixp4xx | ||
mach-ixp23xx | ||
mach-ixp2000 | ||
mach-kirkwood | ||
mach-ks8695 | ||
mach-l7200 | ||
mach-lh7a40x | ||
mach-loki | ||
mach-mmp | ||
mach-msm | ||
mach-mv78xx0 | ||
mach-mx1 | ||
mach-mx2 | ||
mach-mx3 | ||
mach-mx25 | ||
mach-mxc91231 | ||
mach-netx | ||
mach-nomadik | ||
mach-ns9xxx | ||
mach-omap1 | ||
mach-omap2 | ||
mach-orion5x | ||
mach-pnx4008 | ||
mach-pxa | ||
mach-realview | ||
mach-rpc | ||
mach-s3c24a0/include/mach | ||
mach-s3c2400 | ||
mach-s3c2410 | ||
mach-s3c2412 | ||
mach-s3c2440 | ||
mach-s3c2442 | ||
mach-s3c2443 | ||
mach-s3c6400 | ||
mach-s3c6410 | ||
mach-s5pc100 | ||
mach-sa1100 | ||
mach-shark | ||
mach-stmp37xx | ||
mach-stmp378x | ||
mach-u300 | ||
mach-ux500 | ||
mach-versatile | ||
mach-w90x900 | ||
mm | ||
nwfpe | ||
oprofile | ||
plat-iop | ||
plat-mxc | ||
plat-nomadik | ||
plat-omap | ||
plat-orion | ||
plat-pxa | ||
plat-s3c | ||
plat-s3c24xx | ||
plat-s3c64xx | ||
plat-s5pc1xx | ||
plat-samsung | ||
plat-stmp3xxx | ||
tools | ||
vfp | ||
Kconfig | ||
Kconfig-nommu | ||
Kconfig.debug | ||
Makefile |