Original v2 revision: 3401
First attempt to clean up SPI probing and create a common
construct: the flash bus.
At some point the flash bus will be part of struct flashchip.
Pardon me for pushing this in, but I think it is important to beware of further
decay and it will improve things for other developers in the short run.
Carl-Daniel, I will consider your suggestions in another patch. I want to keep
things from getting too much for now. The patch includes Rudolf's VIA SPI
changes though.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
git-svn-id: svn://coreboot.org/flashrom/trunk@285 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/spi.c b/spi.c
index 7fdad82..d89bef6 100644
--- a/spi.c
+++ b/spi.c
@@ -34,13 +34,16 @@
int spi_command(unsigned int writecnt, unsigned int readcnt, const unsigned char *writearr, unsigned char *readarr)
{
- if (it8716f_flashport)
+ switch (flashbus) {
+ case BUS_TYPE_IT87XX_SPI:
return it8716f_spi_command(writecnt, readcnt, writearr, readarr);
- else if ((ich7_detected) || (viaspi_detected))
- return ich_spi_command(writecnt, readcnt, writearr, readarr);
- else if (ich9_detected)
- return ich_spi_command(writecnt, readcnt, writearr, readarr);
- printf_debug("%s called, but no SPI chipset detected\n", __FUNCTION__);
+ case BUS_TYPE_ICH7_SPI:
+ case BUS_TYPE_ICH9_SPI:
+ case BUS_TYPE_VIA_SPI:
+ return ich_spi_command(writecnt, readcnt, writearr, readarr);
+ default:
+ printf_debug("%s called, but no SPI chipset/strapping detected\n", __FUNCTION__);
+ }
return 1;
}
@@ -135,9 +138,16 @@
int probe_spi_rdid4(struct flashchip *flash) {
/* only some SPI chipsets support 4 bytes commands */
- if (!((ich7_detected) || (ich9_detected) || (viaspi_detected)))
- return 0;
- return probe_spi_rdid_generic(flash, 4);
+ switch (flashbus) {
+ case BUS_TYPE_ICH7_SPI:
+ case BUS_TYPE_ICH9_SPI:
+ case BUS_TYPE_VIA_SPI:
+ return probe_spi_rdid_generic(flash, 4);
+ default:
+ printf_debug("4b ID not supported on this SPI controller\n");
+ }
+
+ return 0;
}
int probe_spi_res(struct flashchip *flash)
@@ -316,11 +326,17 @@
void spi_page_program(int block, uint8_t *buf, uint8_t *bios)
{
- if (it8716f_flashport) {
+ switch (flashbus) {
+ case BUS_TYPE_IT87XX_SPI:
it8716f_spi_page_program(block, buf, bios);
- return;
+ break;
+ case BUS_TYPE_ICH7_SPI:
+ case BUS_TYPE_ICH9_SPI:
+ printf_debug("%s called, but not implemented for ICH\n", __FUNCTION__);
+ break;
+ default:
+ printf_debug("%s called, but no SPI chipset/strapping detected\n", __FUNCTION__);
}
- printf_debug("%s called, but no SPI chipset detected\n", __FUNCTION__);
}
/*
@@ -375,25 +391,34 @@
int spi_chip_read(struct flashchip *flash, uint8_t *buf)
{
- if (it8716f_flashport)
+
+ switch (flashbus) {
+ case BUS_TYPE_IT87XX_SPI:
return it8716f_spi_chip_read(flash, buf);
- else if ((ich7_detected) || (viaspi_detected))
+ case BUS_TYPE_ICH7_SPI:
+ case BUS_TYPE_ICH9_SPI:
+ case BUS_TYPE_VIA_SPI:
return ich_spi_read(flash, buf);
- else if (ich9_detected)
- return ich_spi_read(flash, buf);
- printf_debug("%s called, but no SPI chipset detected\n", __FUNCTION__);
+ default:
+ printf_debug("%s called, but no SPI chipset/strapping detected\n", __FUNCTION__);
+ }
+
return 1;
}
int spi_chip_write(struct flashchip *flash, uint8_t *buf)
{
- if (it8716f_flashport)
+ switch (flashbus) {
+ case BUS_TYPE_IT87XX_SPI:
return it8716f_spi_chip_write(flash, buf);
- else if ((ich7_detected) || (viaspi_detected))
+ case BUS_TYPE_ICH7_SPI:
+ case BUS_TYPE_ICH9_SPI:
+ case BUS_TYPE_VIA_SPI:
return ich_spi_write(flash, buf);
- else if (ich9_detected)
- return ich_spi_write(flash, buf);
- printf_debug("%s called, but no SPI chipset detected\n", __FUNCTION__);
+ default:
+ printf_debug("%s called, but no SPI chipset/strapping detected\n", __FUNCTION__);
+ }
+
return 1;
}