sb/intel/common/spi.c: Port to i82801gx

Offsets are a little different.

Change-Id: I39199f3279a8b76e290b6693adc50dc2ac0ccf23
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/21113
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

3 files changed, 40 insertions, 20 deletions

diff --git a/src/southbridge/intel/common/spi.c b/src/southbridge/intel/common/spi.c
index a6a9ae55f0..63f6e57bcf 100644
--- a/src/southbridge/intel/common/spi.c
+++ b/src/southbridge/intel/common/spi.c
@@ -294,6 +294,7 @@ void spi_init(void)
 	uint8_t bios_cntl;
 	device_t dev;
 	ich9_spi_regs *ich9_spi;
+	ich7_spi_regs *ich7_spi;
 	uint16_t hsfs;
 
 #ifdef __SMM__
@@ -305,26 +306,40 @@ void spi_init(void)
 	pci_read_config_dword(dev, 0xf0, &rcba);
 	/* Bits 31-14 are the base address, 13-1 are reserved, 0 is enable. */
 	rcrb = (uint8_t *)(rcba & 0xffffc000);
-	ich9_spi = (ich9_spi_regs *)(rcrb + 0x3800);
-	cntlr.ich9_spi = ich9_spi;
-	hsfs = readw_(&ich9_spi->hsfs);
-	ichspi_lock = hsfs & HSFS_FLOCKDN;
-	cntlr.hsfs = hsfs;
-	cntlr.opmenu = ich9_spi->opmenu;
-	cntlr.menubytes = sizeof(ich9_spi->opmenu);
-	cntlr.optype = &ich9_spi->optype;
-	cntlr.addr = &ich9_spi->faddr;
-	cntlr.data = (uint8_t *)ich9_spi->fdata;
-	cntlr.databytes = sizeof(ich9_spi->fdata);
-	cntlr.status = &ich9_spi->ssfs;
-	cntlr.control = (uint16_t *)ich9_spi->ssfc;
-	cntlr.bbar = &ich9_spi->bbar;
-	cntlr.preop = &ich9_spi->preop;
-
-	if (cntlr.hsfs & HSFS_FDV)
-	{
-		writel_ (4, &ich9_spi->fdoc);
-		cntlr.flmap0 = readl_(&ich9_spi->fdod);
+	if (IS_ENABLED(CONFIG_SOUTHBRIDGE_INTEL_I82801GX)) {
+		ich7_spi = (ich7_spi_regs *)(rcrb + 0x3020);
+		cntlr.opmenu = ich7_spi->opmenu;
+		cntlr.menubytes = sizeof(ich7_spi->opmenu);
+		cntlr.optype = &ich7_spi->optype;
+		cntlr.addr = &ich7_spi->spia;
+		cntlr.data = (uint8_t *)ich7_spi->spid;
+		cntlr.databytes = sizeof(ich7_spi->spid);
+		cntlr.status = (uint8_t *)&ich7_spi->spis;
+		ichspi_lock = readw_(&ich7_spi->spis) & HSFS_FLOCKDN;
+		cntlr.control = &ich7_spi->spic;
+		cntlr.bbar = &ich7_spi->bbar;
+		cntlr.preop = &ich7_spi->preop;
+	} else {
+		ich9_spi = (ich9_spi_regs *)(rcrb + 0x3800);
+		cntlr.ich9_spi = ich9_spi;
+		hsfs = readw_(&ich9_spi->hsfs);
+		ichspi_lock = hsfs & HSFS_FLOCKDN;
+		cntlr.hsfs = hsfs;
+		cntlr.opmenu = ich9_spi->opmenu;
+		cntlr.menubytes = sizeof(ich9_spi->opmenu);
+		cntlr.optype = &ich9_spi->optype;
+		cntlr.addr = &ich9_spi->faddr;
+		cntlr.data = (uint8_t *)ich9_spi->fdata;
+		cntlr.databytes = sizeof(ich9_spi->fdata);
+		cntlr.status = &ich9_spi->ssfs;
+		cntlr.control = (uint16_t *)ich9_spi->ssfc;
+		cntlr.bbar = &ich9_spi->bbar;
+		cntlr.preop = &ich9_spi->preop;
+
+		if (cntlr.hsfs & HSFS_FDV) {
+			writel_ (4, &ich9_spi->fdoc);
+			cntlr.flmap0 = readl_(&ich9_spi->fdod);
+		}
 	}
 
 	ich_set_bbar(0);
@@ -897,6 +912,9 @@ static int spi_flash_programmer_probe(const struct spi_slave *spi,
 {
 	uint32_t flcomp;
 
+	if (IS_ENABLED(CONFIG_SOUTHBRIDGE_INTEL_I82801GX))
+		return spi_flash_generic_probe(spi, flash);
+
 	/* Try generic probing first if spi_is_multichip returns 0. */
 	if (!spi_is_multichip() && !spi_flash_generic_probe(spi, flash))
 		return 0;
diff --git a/src/southbridge/intel/i82801gx/Kconfig b/src/southbridge/intel/i82801gx/Kconfig
index 68c236299e..fd7579ac31 100644
--- a/src/southbridge/intel/i82801gx/Kconfig
+++ b/src/southbridge/intel/i82801gx/Kconfig
@@ -23,6 +23,7 @@ config SOUTHBRIDGE_INTEL_I82801GX
 	select USE_WATCHDOG_ON_BOOT
 	select HAVE_SMI_HANDLER
 	select COMMON_FADT
+	select SPI_FLASH
 	select SOUTHBRIDGE_INTEL_COMMON_GPIO
 	select SOUTHBRIDGE_INTEL_COMMON_SMBUS
 
diff --git a/src/southbridge/intel/i82801gx/Makefile.inc b/src/southbridge/intel/i82801gx/Makefile.inc
index bb68d933b6..5b3ba6ae0a 100644
--- a/src/southbridge/intel/i82801gx/Makefile.inc
+++ b/src/southbridge/intel/i82801gx/Makefile.inc
@@ -27,6 +27,7 @@ ramstage-y += sata.c
 ramstage-y += smbus.c
 ramstage-y += usb.c
 ramstage-y += usb_ehci.c
+ramstage-y += ../common/spi.c
 
 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/hda_verb.c