soc/mediatek/mt8195: Add SPI driver support

Add SPI controller driver code.

Signed-off-by: Qii Wang <qii.wang@mediatek.com>
Change-Id: I674763cdb0f338e123c121ede52278cfe96df091
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52669
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>

2 files changed, 18 insertions, 1 deletions

diff --git a/src/soc/mediatek/mt8195/include/soc/pll.h b/src/soc/mediatek/mt8195/include/soc/pll.h
index 6d836f7e8f..60fcbd9884 100644
--- a/src/soc/mediatek/mt8195/include/soc/pll.h
+++ b/src/soc/mediatek/mt8195/include/soc/pll.h
@@ -562,10 +562,12 @@ enum {
 /* top_div rate */
 enum {
 	CLK26M_HZ	= 26 * MHz,
+	UNIVPLL_D6_D2_HZ = UNIVPLL_HZ / 6 / 2,
 };
 
 /* top_mux rate */
 enum {
+	SPI_HZ		= UNIVPLL_D6_D2_HZ,
 	UART_HZ		= CLK26M_HZ,
 };
 
diff --git a/src/soc/mediatek/mt8195/include/soc/spi.h b/src/soc/mediatek/mt8195/include/soc/spi.h
index cfa4f43a13..a74ed56439 100644
--- a/src/soc/mediatek/mt8195/include/soc/spi.h
+++ b/src/soc/mediatek/mt8195/include/soc/spi.h
@@ -3,6 +3,21 @@
 #ifndef MTK_MT8195_SPI_H
 #define MTK_MT8195_SPI_H
 
-#include <spi-generic.h>
+#include <soc/spi_common.h>
+
+#define SPI_BUS_NUMBER 6
+
+#define GET_SCK_REG(x) x->spi_cfg2_reg
+
+DEFINE_BITFIELD(SPI_CFG_CS_HOLD, 15, 0)
+DEFINE_BITFIELD(SPI_CFG_CS_SETUP, 31, 16)
+
+DEFINE_BITFIELD(SPI_CFG_SCK_LOW, 15, 0)
+DEFINE_BITFIELD(SPI_CFG_SCK_HIGH, 31, 16)
+
+DEFINE_BITFIELD(SPI_CFG1_CS_IDLE, 7, 0)
+DEFINE_BITFIELD(SPI_CFG1_PACKET_LOOP, 15, 8)
+DEFINE_BITFIELD(SPI_CFG1_PACKET_LENGTH, 28, 16)
+DEFINE_BITFIELD(SPI_CFG1_TICK_DLY, 31, 29)
 
 #endif