arm: mvebu: Add Serdes PHY config code

This code is ported from the Marvell bin_hdr code into mainline
SPL U-Boot. It needs to be executed very early so that the devices
connected to the serdes PHY are configured correctly.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Luka Perkov <luka.perkov@sartura.hr>

1 files changed, 87 insertions, 0 deletions

diff --git a/arch/arm/mvebu-common/serdes/high_speed_env_spec.h b/arch/arm/mvebu-common/serdes/high_speed_env_spec.h
new file mode 100644
index 0000000000..e5aa1b06ed
--- /dev/null
+++ b/arch/arm/mvebu-common/serdes/high_speed_env_spec.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) Marvell International Ltd. and its affiliates
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef __HIGHSPEED_ENV_SPEC_H
+#define __HIGHSPEED_ENV_SPEC_H
+
+#include "../../../drivers/ddr/mvebu/ddr3_hw_training.h"
+
+typedef enum {
+	SERDES_UNIT_UNCONNECTED	= 0x0,
+	SERDES_UNIT_PEX		= 0x1,
+	SERDES_UNIT_SATA	= 0x2,
+	SERDES_UNIT_SGMII0	= 0x3,
+	SERDES_UNIT_SGMII1	= 0x4,
+	SERDES_UNIT_SGMII2	= 0x5,
+	SERDES_UNIT_SGMII3	= 0x6,
+	SERDES_UNIT_QSGMII	= 0x7,
+	SERDES_UNIT_SETM        = 0x8,
+	SERDES_LAST_UNIT
+} MV_BIN_SERDES_UNIT_INDX;
+
+
+typedef enum {
+	PEX_BUS_DISABLED	= 0,
+	PEX_BUS_MODE_X1		= 1,
+	PEX_BUS_MODE_X4		= 2,
+	PEX_BUS_MODE_X8		= 3
+} MV_PEX_UNIT_CFG;
+
+typedef enum pex_type {
+	MV_PEX_ROOT_COMPLEX,	/* root complex device */
+	MV_PEX_END_POINT	/* end point device */
+} MV_PEX_TYPE;
+
+typedef struct serdes_change_m_phy {
+	MV_BIN_SERDES_UNIT_INDX type;
+	u32 reg_low_speed;
+	u32 val_low_speed;
+	u32 reg_hi_speed;
+	u32 val_hi_speed;
+} MV_SERDES_CHANGE_M_PHY;
+
+/*
+ * Configuration per SERDES line. Each nibble is MV_SERDES_LINE_TYPE
+ */
+typedef struct board_serdes_conf {
+	MV_PEX_TYPE pex_type; /* MV_PEX_ROOT_COMPLEX MV_PEX_END_POINT */
+	u32 line0_7; /* Lines 0 to 7 SERDES MUX one nibble per line */
+	u32 line8_15; /* Lines 8 to 15 SERDES MUX one nibble per line */
+	MV_PEX_UNIT_CFG pex_mode[4];
+
+	/*
+	 * Bus speed - one bit per SERDES line:
+	 *		Low speed (0)		High speed (1)
+	 * PEX		2.5 G (10 bit)		5 G (20 bit)
+	 * SATA		1.5 G			3 G
+	 * SGMII	1.25 Gbps		3.125 Gbps
+	 */
+	u32	bus_speed;
+
+	MV_SERDES_CHANGE_M_PHY *serdes_m_phy_change;
+} MV_BIN_SERDES_CFG;
+
+
+#define BIN_SERDES_CFG {	\
+	{0, 1, -1 , -1, -1, -1, -1, -1, -1}, /* Lane 0 */	\
+	{0, 1, -1 , -1, -1, -1, -1, -1,  2}, /* Lane 1 */	\
+	{0, 1, -1 ,  2, -1, -1, -1, -1,  3}, /* Lane 2 */	\
+	{0, 1, -1 , -1,  2, -1, -1,  3, -1}, /* Lane 3 */	\
+	{0, 1,  2 , -1, -1,  3, -1, -1,  4}, /* Lane 4 */	\
+	{0, 1,  2 , -1,  3, -1, -1,  4, -1}, /* Lane 5 */	\
+	{0, 1,  2 ,  4, -1,  3, -1, -1, -1}, /* Lane 6 */	\
+	{0, 1, -1 ,  2, -1, -1,  3, -1,  4}, /* Lane 7*/	\
+	{0, 1, -1 , -1, -1, -1, -1, -1, -1}, /* Lane 8 */	\
+	{0, 1, -1 , -1, -1, -1, -1, -1, -1}, /* Lane 9 */	\
+	{0, 1, -1 , -1, -1, -1, -1, -1, -1}, /* Lane 10 */	\
+	{0, 1, -1 , -1, -1, -1, -1, -1, -1}, /* Lane 11 */	\
+	{0, 1, -1 , -1, -1, -1, -1, -1, -1}, /* Lane 12 */	\
+	{0, 1, -1 , -1, -1, -1, -1, -1, -1}, /* Lane 13 */	\
+	{0, 1, -1 , -1, -1, -1, -1, -1, -1}, /* Lane 14 */	\
+	{0, 1, -1 , -1, -1, -1, -1, -1, -1}, /* Lane 15 */	\
+}
+
+#endif /* __HIGHSPEED_ENV_SPEC_H */