[PATCH v3] board: freescale: p1_p2_rdb_pc: Move boot reset macros to p1_p2_bootsrc.h

[Pali Rohár]

Code for changing boot source is platform generic and can be used by any
P1* and P2* compatible RDB board. Not only by boards which use config
header file p1_p2_rdb_pc.h.

So move this code from p1_p2_rdb_pc.h to p1_p2_bootsrc.h and cleanup macros
for generating boot source env variables in CONFIG_EXTRA_ENV_SETTINGS.

This allows to use code for resetting board and rebooting to other boot
source also by other boards in future.

Signed-off-by: Pali Rohár <pali at kernel.org>
---
Changes in v3:
* Fix copyright header
Changes in v2:
* Fix commit message
* Move macros to file p1_p2_bootsrc.h
* Rewrite macros even more to be more generic and use them without custom
  macros in p1_p2_rdb_pc.h
---
 include/configs/p1_p2_bootsrc.h | 59 +++++++++++++++++++++++++++++++++
 include/configs/p1_p2_rdb_pc.h  | 41 +++++------------------
 2 files changed, 68 insertions(+), 32 deletions(-)
 create mode 100644 include/configs/p1_p2_bootsrc.h

diff --git a/include/configs/p1_p2_bootsrc.h b/include/configs/p1_p2_bootsrc.h
new file mode 100644
index 000000000000..13e4fdb4fdf6
--- /dev/null
+++ b/include/configs/p1_p2_bootsrc.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ * Copyright 2020 NXP
+ * Copyright 2022 Pali Rohár <pali at kernel.org>
+ */
+
+#include <linux/stringify.h>
+
+#if !defined(CONFIG_SYS_SPD_BUS_NUM) || !defined(CONFIG_SYS_I2C_PCA9557_ADDR)
+#error "CONFIG_SYS_SPD_BUS_NUM and CONFIG_SYS_I2C_PCA9557_ADDR are required"
+#endif
+
+#define __BOOTSRC_CMD(src, msk) i2c dev CONFIG_SYS_SPD_BUS_NUM; i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 1 src 1; i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 3 msk 1
+
+#define __VAR_CMD(var, cmd) __stringify(var=cmd\0)
+#define __VAR_CMD_RST(var, cmd) __VAR_CMD(var, cmd; reset)
+
+#ifdef __SW_NOR_BANK_LO
+#define MAP_NOR_LO_CMD(var, ...) __VAR_CMD(var, __VA_ARGS__ __BOOTSRC_CMD(__SW_NOR_BANK_LO, __SW_NOR_BANK_MASK))
+#else
+#define MAP_NOR_LO_CMD(var, ...) ""
+#endif
+
+#ifdef __SW_NOR_BANK_UP
+#define MAP_NOR_UP_CMD(var, ...) __VAR_CMD(var, __VA_ARGS__ __BOOTSRC_CMD(__SW_NOR_BANK_UP, __SW_NOR_BANK_MASK))
+#else
+#define MAP_NOR_UP_CMD(var, ...) ""
+#endif
+
+#ifdef __SW_BOOT_NOR
+#define RST_NOR_CMD(var, ...) __VAR_CMD_RST(var, __VA_ARGS__ __BOOTSRC_CMD(__SW_BOOT_NOR, __SW_BOOT_MASK))
+#else
+#define RST_NOR_CMD(var, ...) ""
+#endif
+
+#ifdef __SW_BOOT_SPI
+#define RST_SPI_CMD(var, ...) __VAR_CMD_RST(var, __VA_ARGS__ __BOOTSRC_CMD(__SW_BOOT_SPI, __SW_BOOT_MASK))
+#else
+#define RST_SPI_CMD(var, ...) ""
+#endif
+
+#ifdef __SW_BOOT_SD
+#define RST_SD_CMD(var, ...) __VAR_CMD_RST(var, __VA_ARGS__ __BOOTSRC_CMD(__SW_BOOT_SD, __SW_BOOT_MASK))
+#else
+#define RST_SD_CMD(var, ...) ""
+#endif
+
+#ifdef __SW_BOOT_NAND
+#define RST_NAND_CMD(var, ...) __VAR_CMD_RST(var, __VA_ARGS__ __BOOTSRC_CMD(__SW_BOOT_NAND, __SW_BOOT_MASK))
+#else
+#define RST_NAND_CMD(var, ...) ""
+#endif
+
+#ifdef __SW_BOOT_PCIE
+#define RST_PCIE_CMD(var, ...) __VAR_CMD_RST(var, __VA_ARGS__ __BOOTSRC_CMD(__SW_BOOT_PCIE, __SW_BOOT_MASK))
+#else
+#define RST_PCIE_CMD(var, ...) ""
+#endif
diff --git a/include/configs/p1_p2_rdb_pc.h b/include/configs/p1_p2_rdb_pc.h
index f6ecf2a7a8b8..0d655818a924 100644
--- a/include/configs/p1_p2_rdb_pc.h
+++ b/include/configs/p1_p2_rdb_pc.h
@@ -542,31 +542,7 @@
 #define CONFIG_ROOTPATH		"/opt/nfsroot"
 #define CONFIG_UBOOTPATH	u-boot.bin /* U-Boot image on TFTP server */
 
-#ifdef __SW_BOOT_NOR
-#define __NOR_RST_CMD	\
-norboot=i2c dev CONFIG_SYS_SPD_BUS_NUM; i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 1 __SW_BOOT_NOR 1; \
-i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 3 __SW_BOOT_MASK 1; reset
-#endif
-#ifdef __SW_BOOT_SPI
-#define __SPI_RST_CMD	\
-spiboot=i2c dev CONFIG_SYS_SPD_BUS_NUM; i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 1 __SW_BOOT_SPI 1; \
-i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 3 __SW_BOOT_MASK 1; reset
-#endif
-#ifdef __SW_BOOT_SD
-#define __SD_RST_CMD	\
-sdboot=i2c dev CONFIG_SYS_SPD_BUS_NUM; i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 1 __SW_BOOT_SD 1; \
-i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 3 __SW_BOOT_MASK 1; reset
-#endif
-#ifdef __SW_BOOT_NAND
-#define __NAND_RST_CMD	\
-nandboot=i2c dev CONFIG_SYS_SPD_BUS_NUM; i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 1 __SW_BOOT_NAND 1; \
-i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 3 __SW_BOOT_MASK 1; reset
-#endif
-#ifdef __SW_BOOT_PCIE
-#define __PCIE_RST_CMD	\
-pciboot=i2c dev CONFIG_SYS_SPD_BUS_NUM; i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 1 __SW_BOOT_PCIE 1; \
-i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 3 __SW_BOOT_MASK 1; reset
-#endif
+#include "p1_p2_bootsrc.h"
 
 #define	CONFIG_EXTRA_ENV_SETTINGS	\
 "netdev=eth0\0"	\
@@ -593,13 +569,14 @@ i2c mw CONFIG_SYS_I2C_PCA9557_ADDR 3 __SW_BOOT_MASK 1; reset
 "nandfdtaddr=80000\0"		\
 "ramdisk_size=120000\0"	\
 __VSCFW_ADDR	\
-"map_lowernorbank=i2c dev "__stringify(CONFIG_SYS_SPD_BUS_NUM)"; i2c mw "__stringify(CONFIG_SYS_I2C_PCA9557_ADDR)" 1 "__stringify(__SW_NOR_BANK_LO)" 1; i2c mw "__stringify(CONFIG_SYS_I2C_PCA9557_ADDR)" 3 "__stringify(__SW_NOR_BANK_MASK)" 1\0" \
-"map_uppernorbank=i2c dev "__stringify(CONFIG_SYS_SPD_BUS_NUM)"; i2c mw "__stringify(CONFIG_SYS_I2C_PCA9557_ADDR)" 1 "__stringify(__SW_NOR_BANK_UP)" 1; i2c mw "__stringify(CONFIG_SYS_I2C_PCA9557_ADDR)" 3 "__stringify(__SW_NOR_BANK_MASK)" 1\0" \
-__stringify(__NOR_RST_CMD)"\0" \
-__stringify(__SPI_RST_CMD)"\0" \
-__stringify(__SD_RST_CMD)"\0" \
-__stringify(__NAND_RST_CMD)"\0" \
-__stringify(__PCIE_RST_CMD)"\0"
+MAP_NOR_LO_CMD(map_lowernorbank) \
+MAP_NOR_UP_CMD(map_uppernorbank) \
+RST_NOR_CMD(norboot) \
+RST_SPI_CMD(spiboot) \
+RST_SD_CMD(sdboot) \
+RST_NAND_CMD(nandboot) \
+RST_PCIE_CMD(pciboot) \
+""
 
 #define CONFIG_USB_FAT_BOOT	\
 "setenv bootargs root=/dev/ram rw "	\
-- 
2.20.1