x86: ich-spi: Remove spi_write_protect_region()
This routine is not called anywhere.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c
index bf2e99b..46dd9a8 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -539,56 +539,6 @@
return 0;
}
-/*
- * This uses the SPI controller from the Intel Cougar Point and Panther Point
- * PCH to write-protect portions of the SPI flash until reboot. The changes
- * don't actually take effect until the HSFS[FLOCKDN] bit is set, but that's
- * done elsewhere.
- */
-int spi_write_protect_region(struct udevice *dev, uint32_t lower_limit,
- uint32_t length, int hint)
-{
- struct udevice *bus = dev->parent;
- struct ich_spi_priv *ctlr = dev_get_priv(bus);
- uint32_t tmplong;
- uint32_t upper_limit;
-
- if (!ctlr->pr) {
- printf("%s: operation not supported on this chipset\n",
- __func__);
- return -ENOSYS;
- }
-
- if (length == 0 ||
- lower_limit > (0xFFFFFFFFUL - length) + 1 ||
- hint < 0 || hint > 4) {
- printf("%s(0x%x, 0x%x, %d): invalid args\n", __func__,
- lower_limit, length, hint);
- return -EPERM;
- }
-
- upper_limit = lower_limit + length - 1;
-
- /*
- * Determine bits to write, as follows:
- * 31 Write-protection enable (includes erase operation)
- * 30:29 reserved
- * 28:16 Upper Limit (FLA address bits 24:12, with 11:0 == 0xfff)
- * 15 Read-protection enable
- * 14:13 reserved
- * 12:0 Lower Limit (FLA address bits 24:12, with 11:0 == 0x000)
- */
- tmplong = 0x80000000 |
- ((upper_limit & 0x01fff000) << 4) |
- ((lower_limit & 0x01fff000) >> 12);
-
- printf("%s: writing 0x%08x to %p\n", __func__, tmplong,
- &ctlr->pr[hint]);
- ctlr->pr[hint] = tmplong;
-
- return 0;
-}
-
static int ich_spi_probe(struct udevice *dev)
{
struct ich_spi_platdata *plat = dev_get_platdata(dev);