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Convert the existing it8716f_* functions to generic_spi_* functions by

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applying abstraction and wrapping.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2863 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Carl-Daniel Hailfinger
2007-10-16 21:09:06 +00:00
parent 52bc99367c
commit 259aaf00f5
3 changed files with 22 additions and 15 deletions
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33
util/flashrom/spi.c
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@ -68,7 +68,7 @@ static void exit_conf_mode_ite(uint16_t port)
regwrite(port, 0x02, 0x02);
}
static uint16_t find_ite_serial_flash_port(uint16_t port)
static uint16_t find_ite_spi_flash_port(uint16_t port)
{
uint8_t tmp = 0;
uint16_t id, flashport = 0;
@ -102,6 +102,14 @@ static uint16_t find_ite_serial_flash_port(uint16_t port)
return flashport;
}
int it87xx_probe_spi_flash(const char *name)
{
it8716f_flashport = find_ite_spi_flash_port(ITE_SUPERIO_PORT1);
if (!it8716f_flashport)
it8716f_flashport = find_ite_spi_flash_port(ITE_SUPERIO_PORT2);
return (!it8716f_flashport);
}
/* The IT8716F only supports commands with length 1,2,4,5 bytes including
command byte and can not read more than 3 bytes from the device.
This function expects writearr[0] to be the first byte sent to the device,
@ -162,31 +170,30 @@ static int it8716f_spi_command(uint16_t port, unsigned char writecnt, unsigned c
return 0;
}
static int it8716f_serial_rdid(uint16_t port, unsigned char *readarr)
static int generic_spi_command(unsigned char writecnt, unsigned char readcnt, const unsigned char *writearr, unsigned char *readarr)
{
if (it8716f_flashport)
return it8716f_spi_command(it8716f_flashport, writecnt, readcnt, writearr, readarr);
printf("%s called, but no SPI chipset detected\n", __FUNCTION__);
return 1;
}
static int generic_spi_rdid(unsigned char *readarr)
{
const unsigned char cmd[] = JEDEC_RDID;
if (it8716f_spi_command(port, JEDEC_RDID_OUTSIZE, JEDEC_RDID_INSIZE, cmd, readarr))
if (generic_spi_command(JEDEC_RDID_OUTSIZE, JEDEC_RDID_INSIZE, cmd, readarr))
return 1;
printf("RDID returned %02x %02x %02x\n", readarr[0], readarr[1], readarr[2]);
return 0;
}
int it87xx_probe_serial_flash(const char *name)
{
it8716f_flashport = find_ite_serial_flash_port(ITE_SUPERIO_PORT1);
if (!it8716f_flashport)
it8716f_flashport = find_ite_serial_flash_port(ITE_SUPERIO_PORT2);
return (!it8716f_flashport);
}
int probe_spi(struct flashchip *flash)
{
unsigned char readarr[3];
uint8_t manuf_id;
uint16_t model_id;
if (it8716f_flashport) {
it8716f_serial_rdid(it8716f_flashport, readarr);
if (!generic_spi_rdid(readarr)) {
manuf_id = readarr[0];
model_id = (readarr[1] << 8) | readarr[2];
printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, manuf_id, model_id);