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Diffstat (limited to 'src/southbridge/intel/common/spi.c')
-rw-r--r--src/southbridge/intel/common/spi.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/src/southbridge/intel/common/spi.c b/src/southbridge/intel/common/spi.c
index f447515e58..d9a77c3bb5 100644
--- a/src/southbridge/intel/common/spi.c
+++ b/src/southbridge/intel/common/spi.c
@@ -38,8 +38,6 @@
static int spi_is_multichip(void);
-static int g_ichspi_lock = 0;
-
struct ich7_spi_regs {
uint16_t spis;
uint16_t spic;
@@ -294,7 +292,6 @@ void spi_init(void)
cntlr->data = (uint8_t *)ich7_spi->spid;
cntlr->databytes = sizeof(ich7_spi->spid);
cntlr->status = (uint8_t *)&ich7_spi->spis;
- g_ichspi_lock = readw_(&ich7_spi->spis) & HSFS_FLOCKDN;
cntlr->control = &ich7_spi->spic;
cntlr->bbar = &ich7_spi->bbar;
cntlr->preop = &ich7_spi->preop;
@@ -304,7 +301,6 @@ void spi_init(void)
ich9_spi = (struct ich9_spi_regs *)(rcrb + 0x3800);
cntlr->ich9_spi = ich9_spi;
hsfs = readw_(&ich9_spi->hsfs);
- g_ichspi_lock = hsfs & HSFS_FLOCKDN;
cntlr->hsfs = hsfs;
cntlr->opmenu = ich9_spi->opmenu;
cntlr->menubytes = sizeof(ich9_spi->opmenu);
@@ -336,6 +332,16 @@ void spi_init(void)
pci_write_config8(dev, 0xdc, bios_cntl | 0x1);
}
+static int spi_locked(void)
+{
+ struct ich_spi_controller *cntlr = &g_cntlr;
+ if (CONFIG(SOUTHBRIDGE_INTEL_I82801GX)) {
+ return !!(readw_(&cntlr->ich7_spi->spis) & HSFS_FLOCKDN);
+ } else {
+ return !!(readw_(&cntlr->ich9_spi->hsfs) | HSFS_FLOCKDN);
+ }
+}
+
static void spi_init_cb(void *unused)
{
spi_init();
@@ -407,7 +413,7 @@ static int spi_setup_opcode(spi_transaction *trans)
trans->opcode = trans->out[0];
spi_use_out(trans, 1);
- if (!g_ichspi_lock) {
+ if (!spi_locked()) {
/* The lock is off, so just use index 0. */
writeb_(trans->opcode, cntlr->opmenu);
optypes = readw_(cntlr->optype);
@@ -552,7 +558,7 @@ static int spi_ctrlr_xfer(const struct spi_slave *slave, const void *dout,
* in order to prevent the Management Engine from
* issuing a transaction between WREN and DATA.
*/
- if (!g_ichspi_lock)
+ if (!spi_locked())
writew_(trans.opcode, cntlr->preop);
return 0;
}