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gpio_delay -> seeprom_delay

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marcan 2009-03-06 05:22:50 +01:00 committed by bushing
parent 4d1a048d42
commit 4c4148aa5b
1 changed files with 8 additions and 9 deletions
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17
seeprom.c
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@ -4,8 +4,7 @@
#include "start.h" #include "start.h"
#include "gpio.h" #include "gpio.h"
#define gpio_delay() udelay(100) #define eeprom_delay() udelay(5)
void send_bits(int b, int bits) void send_bits(int b, int bits)
{ {
@ -15,11 +14,11 @@ void send_bits(int b, int bits)
set32(HW_GPIO1OUT, GP_EEP_MOSI); set32(HW_GPIO1OUT, GP_EEP_MOSI);
else else
clear32(HW_GPIO1OUT, GP_EEP_MOSI); clear32(HW_GPIO1OUT, GP_EEP_MOSI);
gpio_delay(); eeprom_delay();
set32(HW_GPIO1OUT, GP_EEP_CLK); set32(HW_GPIO1OUT, GP_EEP_CLK);
gpio_delay(); eeprom_delay();
clear32(HW_GPIO1OUT, GP_EEP_CLK); clear32(HW_GPIO1OUT, GP_EEP_CLK);
gpio_delay(); eeprom_delay();
} }
} }
@ -30,9 +29,9 @@ int recv_bits(int bits)
{ {
res <<= 1; res <<= 1;
set32(HW_GPIO1OUT, GP_EEP_CLK); set32(HW_GPIO1OUT, GP_EEP_CLK);
gpio_delay(); eeprom_delay();
clear32(HW_GPIO1OUT, GP_EEP_CLK); clear32(HW_GPIO1OUT, GP_EEP_CLK);
gpio_delay(); eeprom_delay();
res |= !!(read32(HW_GPIO1IN) & GP_EEP_MISO); res |= !!(read32(HW_GPIO1IN) & GP_EEP_MISO);
} }
return res; return res;
@ -49,7 +48,7 @@ int seeprom_read(void *dst, int offset, int size)
clear32(HW_GPIO1OUT, GP_EEP_CLK); clear32(HW_GPIO1OUT, GP_EEP_CLK);
clear32(HW_GPIO1OUT, GP_EEP_CS); clear32(HW_GPIO1OUT, GP_EEP_CS);
gpio_delay(); eeprom_delay();
for(i = 0; i < size; ++i) for(i = 0; i < size; ++i)
{ {
@ -58,7 +57,7 @@ int seeprom_read(void *dst, int offset, int size)
recv = recv_bits(16); recv = recv_bits(16);
*ptr++ = recv; *ptr++ = recv;
clear32(HW_GPIO1OUT, GP_EEP_CS); clear32(HW_GPIO1OUT, GP_EEP_CS);
gpio_delay(); eeprom_delay();
} }
return size; return size;