km/spi: remove deprecated SPI flash driver code for KM Kirkwood boards

KM Kirkwood boards now implement the driver model for its SPI flash
interface. Therefore, the old board specific claim and release functions
can be deleted. The preprocessor definition CONFIG_SYS_KW_SPI_MPP is yet
unused as well. All its appearances and dependencies are removed in the
kirkwood_spi driver, header files and finally the configuration whitelist.

Signed-off-by: Pascal Linder <pascal.linder@edu.hefr.ch>
Signed-off-by: Holger Brunck <holger.brunck@ch.abb.com>
Signed-off-by: Stefan Roese <sr@denx.de>

5 files changed, 0 insertions, 65 deletions

diff --git a/arch/arm/include/asm/arch-mvebu/spi.h b/arch/arm/include/asm/arch-mvebu/spi.h
index d6f6d1ac574..58b6c32c4d8 100644
--- a/arch/arm/include/asm/arch-mvebu/spi.h
+++ b/arch/arm/include/asm/arch-mvebu/spi.h
@@ -23,17 +23,6 @@ struct kwspi_registers {
 	u32 dw_cfg;	/* 0x10620 - Direct Write Configuration */
 };
 
-/* They are used to define CONFIG_SYS_KW_SPI_MPP
- * each of the below #defines selects which mpp is
- * configured for each SPI signal in spi_claim_bus
- * bit 0: selects pin for MOSI (MPP1 if 0, MPP6 if 1)
- * bit 1: selects pin for SCK (MPP2 if 0, MPP10 if 1)
- * bit 2: selects pin for MISO (MPP3 if 0, MPP11 if 1)
- */
-#define MOSI_MPP6	(1 << 0)
-#define SCK_MPP10	(1 << 1)
-#define MISO_MPP11	(1 << 2)
-
 /* Control Register */
 #define KWSPI_CSN_ACT		(1 << 0) /* Activates serial memory interface */
 #define KWSPI_SMEMRDY		(1 << 1) /* SerMem Data xfer ready */
diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c
index 7087cc520fd..3db80615ef6 100644
--- a/board/keymile/km_arm/km_arm.c
+++ b/board/keymile/km_arm/km_arm.c
@@ -310,18 +310,6 @@ int board_late_init(void)
 	return 0;
 }
 
-int board_spi_claim_bus(struct spi_slave *slave)
-{
-	kw_gpio_set_value(KM_FLASH_GPIO_PIN, 0);
-
-	return 0;
-}
-
-void board_spi_release_bus(struct spi_slave *slave)
-{
-	kw_gpio_set_value(KM_FLASH_GPIO_PIN, 1);
-}
-
 static const u32 spi_mpp_config[] = {
 	MPP1_SPI_MOSI,
 	MPP2_SPI_SCK,
diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c
index 881a7750031..c725625146d 100644
--- a/drivers/spi/kirkwood_spi.c
+++ b/drivers/spi/kirkwood_spi.c
@@ -151,10 +151,6 @@ void spi_free_slave(struct spi_slave *slave)
 	free(slave);
 }
 
-#if defined(CONFIG_SYS_KW_SPI_MPP)
-u32 spi_mpp_backup[4];
-#endif
-
 __attribute__((weak)) int board_spi_claim_bus(struct spi_slave *slave)
 {
 	return 0;
@@ -162,34 +158,6 @@ __attribute__((weak)) int board_spi_claim_bus(struct spi_slave *slave)
 
 int spi_claim_bus(struct spi_slave *slave)
 {
-#if defined(CONFIG_SYS_KW_SPI_MPP)
-	u32 config;
-	u32 spi_mpp_config[4];
-
-	config = CONFIG_SYS_KW_SPI_MPP;
-
-	if (config & MOSI_MPP6)
-		spi_mpp_config[0] = MPP6_SPI_MOSI;
-	else
-		spi_mpp_config[0] = MPP1_SPI_MOSI;
-
-	if (config & SCK_MPP10)
-		spi_mpp_config[1] = MPP10_SPI_SCK;
-	else
-		spi_mpp_config[1] = MPP2_SPI_SCK;
-
-	if (config & MISO_MPP11)
-		spi_mpp_config[2] = MPP11_SPI_MISO;
-	else
-		spi_mpp_config[2] = MPP3_SPI_MISO;
-
-	spi_mpp_config[3] = 0;
-	spi_mpp_backup[3] = 0;
-
-	/* set new spi mpp and save current mpp config */
-	kirkwood_mpp_conf(spi_mpp_config, spi_mpp_backup);
-#endif
-
 	return board_spi_claim_bus(slave);
 }
 
@@ -199,10 +167,6 @@ __attribute__((weak)) void board_spi_release_bus(struct spi_slave *slave)
 
 void spi_release_bus(struct spi_slave *slave)
 {
-#if defined(CONFIG_SYS_KW_SPI_MPP)
-	kirkwood_mpp_conf(spi_mpp_backup, NULL);
-#endif
-
 	board_spi_release_bus(slave);
 }
 
diff --git a/include/configs/km/km_arm.h b/include/configs/km/km_arm.h
index 8a00ac015ac..a381a984702 100644
--- a/include/configs/km/km_arm.h
+++ b/include/configs/km/km_arm.h
@@ -201,11 +201,6 @@ int get_scl(void);
 
 #define CONFIG_SYS_REDUNDAND_ENVIRONMENT
 
-
-/* SPI bus claim MPP configuration */
-#define CONFIG_SYS_KW_SPI_MPP	0x0
-
-#define FLASH_GPIO_PIN			0x00010000
 #define KM_FLASH_GPIO_PIN	16
 
 #define	CONFIG_KM_UPDATE_UBOOT						\
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index 2fc77b77c21..2c9cfb450d0 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -3066,7 +3066,6 @@ CONFIG_SYS_JFFS2_SORT_FRAGMENTS
 CONFIG_SYS_KMBEC_FPGA_BASE
 CONFIG_SYS_KMBEC_FPGA_SIZE
 CONFIG_SYS_KWD_CONFIG
-CONFIG_SYS_KW_SPI_MPP
 CONFIG_SYS_L2
 CONFIG_SYS_L2_PL310
 CONFIG_SYS_L2_SIZE