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i8255x: longer acces timing for eeprom. 

git-svn-id: svn://kolibrios.org@5247 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2014-12-19 21:33:05 +00:00
parent 9e74531bdb
commit 5cd0c307f0
1 changed files with 24 additions and 29 deletions
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53
drivers/ethernet/i8255x.asm
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@ -187,21 +187,6 @@ struct device ETH_DEVICE
ends
macro delay {
push eax
in ax, dx
in ax, dx
in ax, dx
in ax, dx
in ax, dx
in ax, dx
in ax, dx
in ax, dx
in ax, dx
in ax, dx
pop eax
}
;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; proc START ;;
@ -896,7 +881,7 @@ ee_read: ; esi = address to read
mov al, EE_CS
out dx, al
delay
call udelay
;-----------------------
; Write this to the chip
@ -908,11 +893,11 @@ ee_read: ; esi = address to read
or al, EE_DI
@@:
out dx, al
delay
call udelay
and al, not EE_SK
out dx, al
delay
call udelay
loop .loop
@ -926,7 +911,7 @@ ee_read: ; esi = address to read
shl esi, 1
mov al, EE_CS + EE_SK
out dx, al
delay
call udelay
in al, dx
test al, EE_DO
@ -936,7 +921,7 @@ ee_read: ; esi = address to read
mov al, EE_CS
out dx, al
delay
call udelay
loop .loop2
@ -985,11 +970,11 @@ ee_write: ; esi = address to write to, di = data
or al, EE_DI
@@:
out dx, al
delay
call udelay
and al, not EE_SK
out dx, al
delay
call udelay
loop .loop
@ -1005,11 +990,11 @@ ee_write: ; esi = address to write to, di = data
or al, EE_DI
@@:
out dx, al
delay
call udelay
and al, not EE_SK
out dx, al
delay
call udelay
loop .loop2
@ -1032,7 +1017,7 @@ ee_get_width:
mov al, EE_CS ; activate eeprom
out dx, al
delay
call udelay
mov si, EE_READ shl 13
xor ecx, ecx
@ -1043,11 +1028,11 @@ ee_get_width:
or al, EE_DI
@@:
out dx, al
delay
call udelay
and al, not EE_SK
out dx, al
delay
call udelay
inc ecx
@ -1076,6 +1061,16 @@ ee_get_width:
ret
; Wait a minimum of 2µs
udelay:
pusha
mov esi, 1
invoke Sleep
popa
ret
; cx = phy addr
; dx = phy reg addr
@ -1099,7 +1094,7 @@ mdio_read:
out dx, eax
.wait:
delay
call udelay
in eax, dx
test eax, 1 shl 28 ; ready bit
jz .wait
@ -1131,7 +1126,7 @@ mdio_write:
out dx, eax
.wait:
delay
call udelay
in eax, dx
test eax, 1 shl 28 ; ready bit
jz .wait