board: atmel: clean up peripheral clock code

Due to introducing the new peripheral clock handle functions,
use these functions to reduce duplicated code.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Tested-by: Heiko Schocher <hs@denx.de>
[Rebased on current master, fixup for at91rm9200ek]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

18 files changed, 49 insertions, 108 deletions

diff --git a/board/atmel/at91rm9200ek/at91rm9200ek.c b/board/atmel/at91rm9200ek/at91rm9200ek.c
index 64ab572619..4ca8106c06 100644
--- a/board/atmel/at91rm9200ek/at91rm9200ek.c
+++ b/board/atmel/at91rm9200ek/at91rm9200ek.c
@@ -14,7 +14,6 @@
 #include <netdev.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/at91_pio.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/at91_common.h>
 #include <asm/io.h>
 
diff --git a/board/atmel/at91rm9200ek/led.c b/board/atmel/at91rm9200ek/led.c
index 6761b141fb..fbe8e3d22c 100644
--- a/board/atmel/at91rm9200ek/led.c
+++ b/board/atmel/at91rm9200ek/led.c
@@ -12,7 +12,7 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/hardware.h>
-#include <asm/arch/at91_pmc.h>
+#include <asm/arch/clk.h>
 #include <asm/arch/at91_pio.h>
 #include <status_led.h>
 
@@ -59,11 +59,9 @@ void	red_led_off(void)
 
 void coloured_LED_init (void)
 {
-	at91_pmc_t *pmc = (at91_pmc_t *)ATMEL_BASE_PMC;
 	at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
 
-	/* Enable PIOB clock */
-	writel(1 << ATMEL_ID_PIOB, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOB);
 
 	/* Disable peripherals on LEDs */
 	writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.per);
diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c
index 7f14af1011..98193bfdc6 100644
--- a/board/atmel/at91sam9260ek/at91sam9260ek.c
+++ b/board/atmel/at91sam9260ek/at91sam9260ek.c
@@ -11,7 +11,7 @@
 #include <asm/arch/at91sam9260_matrix.h>
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
-#include <asm/arch/at91_pmc.h>
+#include <asm/arch/clk.h>
 #include <asm/arch/gpio.h>
 #include <atmel_mci.h>
 
@@ -70,11 +70,9 @@ static void at91sam9260ek_nand_hw_init(void)
 #ifdef CONFIG_MACB
 static void at91sam9260ek_macb_hw_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
 
-	/* Enable EMAC clock */
-	writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_EMAC0);
 
 	/*
 	 * Disable pull-up on:
@@ -122,12 +120,9 @@ int board_mmc_init(bd_t *bd)
 
 int board_early_init_f(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
-	/* Enable clocks for all PIOs */
-	writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) |
-		(1 << ATMEL_ID_PIOC),
-		&pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOA);
+	at91_periph_clk_enable(ATMEL_ID_PIOB);
+	at91_periph_clk_enable(ATMEL_ID_PIOC);
 
 	return 0;
 }
diff --git a/board/atmel/at91sam9261ek/at91sam9261ek.c b/board/atmel/at91sam9261ek/at91sam9261ek.c
index 52504742cd..7b7cd2c426 100644
--- a/board/atmel/at91sam9261ek/at91sam9261ek.c
+++ b/board/atmel/at91sam9261ek/at91sam9261ek.c
@@ -12,7 +12,6 @@
 #include <asm/arch/at91sam9261_matrix.h>
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/at91_rstc.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/gpio.h>
@@ -35,7 +34,6 @@ static void at91sam9261ek_nand_hw_init(void)
 {
 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
 	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	unsigned long csa;
 
 	/* Enable CS3 */
@@ -74,7 +72,7 @@ static void at91sam9261ek_nand_hw_init(void)
 		       AT91_SMC_MODE_TDF_CYCLE(2),
 		       &smc->cs[3].mode);
 
-	writel(1 << ATMEL_ID_PIOC, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOC);
 
 	/* Configure RDY/BSY */
 	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
@@ -161,8 +159,6 @@ void lcd_disable(void)
 
 static void at91sam9261ek_lcd_hw_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
 	at91_set_A_periph(AT91_PIN_PB1, 0);	/* LCDHSYNC */
 	at91_set_A_periph(AT91_PIN_PB2, 0);	/* LCDDOTCK */
 	at91_set_A_periph(AT91_PIN_PB3, 0);	/* LCDDEN */
@@ -186,7 +182,7 @@ static void at91sam9261ek_lcd_hw_init(void)
 	at91_set_B_periph(AT91_PIN_PB27, 0);	/* LCDD22 */
 	at91_set_B_periph(AT91_PIN_PB28, 0);	/* LCDD23 */
 
-	writel(AT91_PMC_HCK1, &pmc->scer);
+	at91_system_clk_enable(AT91_PMC_HCK1);
 
 	/* For 9G10EK, let U-Boot allocate the framebuffer in SDRAM */
 #ifdef CONFIG_AT91SAM9261EK
diff --git a/board/atmel/at91sam9261ek/led.c b/board/atmel/at91sam9261ek/led.c
index 18a68d8c59..485d7ea81f 100644
--- a/board/atmel/at91sam9261ek/led.c
+++ b/board/atmel/at91sam9261ek/led.c
@@ -8,17 +8,15 @@
 
 #include <common.h>
 #include <asm/arch/at91sam9261.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/at91_pio.h>
+#include <asm/arch/clk.h>
 #include <asm/io.h>
 
 void coloured_LED_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
 	/* Enable clock */
-	writel(ATMEL_ID_PIOA, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOA);
 
 	at91_set_gpio_output(CONFIG_RED_LED, 1);
 	at91_set_gpio_output(CONFIG_GREEN_LED, 1);
diff --git a/board/atmel/at91sam9263ek/at91sam9263ek.c b/board/atmel/at91sam9263ek/at91sam9263ek.c
index 927adb0d38..af68e10390 100644
--- a/board/atmel/at91sam9263ek/at91sam9263ek.c
+++ b/board/atmel/at91sam9263ek/at91sam9263ek.c
@@ -11,7 +11,6 @@
 #include <asm/arch/at91sam9263.h>
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/at91_matrix.h>
 #include <asm/arch/at91_pio.h>
 #include <asm/arch/clk.h>
@@ -39,7 +38,6 @@ static void at91sam9263ek_nand_hw_init(void)
 	unsigned long csa;
 	at91_smc_t    *smc    = (at91_smc_t *) ATMEL_BASE_SMC0;
 	at91_matrix_t *matrix = (at91_matrix_t *) ATMEL_BASE_MATRIX;
-	at91_pmc_t    *pmc    = (at91_pmc_t *) ATMEL_BASE_PMC;
 
 	/* Enable CS3 */
 	csa = readl(&matrix->csa[0]) | AT91_MATRIX_CSA_EBI_CS3A;
@@ -68,8 +66,8 @@ static void at91sam9263ek_nand_hw_init(void)
 		       AT91_SMC_MODE_TDF_CYCLE(2),
 		&smc->cs[3].mode);
 
-	writel(1 << ATMEL_ID_PIOA | 1 << ATMEL_ID_PIOCDE,
-		&pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOA);
+	at91_periph_clk_enable(ATMEL_ID_PIOCDE);
 
 	/* Configure RDY/BSY */
 	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
@@ -82,11 +80,9 @@ static void at91sam9263ek_nand_hw_init(void)
 #ifdef CONFIG_MACB
 static void at91sam9263ek_macb_hw_init(void)
 {
-	at91_pmc_t	*pmc	= (at91_pmc_t *) ATMEL_BASE_PMC;
 	at91_pio_t	*pio	= (at91_pio_t *) ATMEL_BASE_PIO;
 
-	/* Enable clock */
-	writel(1 << ATMEL_ID_EMAC, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_EMAC);
 
 	/*
 	 * Disable pull-up on:
@@ -139,8 +135,6 @@ void lcd_disable(void)
 
 static void at91sam9263ek_lcd_hw_init(void)
 {
-	at91_pmc_t	*pmc	= (at91_pmc_t *) ATMEL_BASE_PMC;
-
 	at91_set_a_periph(AT91_PIO_PORTC, 1, 0);	/* LCDHSYNC */
 	at91_set_a_periph(AT91_PIO_PORTC, 2, 0);	/* LCDDOTCK */
 	at91_set_a_periph(AT91_PIO_PORTC, 3, 0);	/* LCDDEN */
@@ -164,7 +158,7 @@ static void at91sam9263ek_lcd_hw_init(void)
 	at91_set_a_periph(AT91_PIO_PORTC, 26, 0);	/* LCDD22 */
 	at91_set_a_periph(AT91_PIO_PORTC, 27, 0);	/* LCDD23 */
 
-	writel(1 << ATMEL_ID_LCDC, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_LCDC);
 	gd->fb_base = ATMEL_BASE_SRAM0;
 }
 
@@ -226,12 +220,9 @@ int board_mmc_init(bd_t *bd)
 
 int board_early_init_f(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
-	/* Enable clocks for all PIOs */
-	writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) |
-		(1 << ATMEL_ID_PIOCDE),
-		&pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOA);
+	at91_periph_clk_enable(ATMEL_ID_PIOB);
+	at91_periph_clk_enable(ATMEL_ID_PIOCDE);
 
 	at91_seriald_hw_init();
 	return 0;
diff --git a/board/atmel/at91sam9263ek/led.c b/board/atmel/at91sam9263ek/led.c
index e317d99831..21d81def5e 100644
--- a/board/atmel/at91sam9263ek/led.c
+++ b/board/atmel/at91sam9263ek/led.c
@@ -9,16 +9,13 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/gpio.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/at91sam9263.h>
+#include <asm/arch/clk.h>
 
 void coloured_LED_init(void)
 {
-	/* Enable clock */
-	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
-
-	writel(1 << ATMEL_ID_PIOB | 1 << ATMEL_ID_PIOCDE,
-		&pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOB);
+	at91_periph_clk_enable(ATMEL_ID_PIOB);
 
 	at91_set_gpio_output(CONFIG_RED_LED, 1);
 	at91_set_gpio_output(CONFIG_GREEN_LED, 1);
diff --git a/board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c b/board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c
index 0a51fcd9aa..4c6431266f 100644
--- a/board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c
+++ b/board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c
@@ -12,7 +12,6 @@
 #include <asm/arch/at91sam9g45_matrix.h>
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/clk.h>
 #include <lcd.h>
@@ -36,7 +35,6 @@ void at91sam9m10g45ek_nand_hw_init(void)
 {
 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
 	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	unsigned long csa;
 
 	/* Enable CS3 */
@@ -63,7 +61,7 @@ void at91sam9m10g45ek_nand_hw_init(void)
 	       AT91_SMC_MODE_TDF_CYCLE(3),
 	       &smc->cs[3].mode);
 
-	writel(1 << ATMEL_ID_PIOC, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOC);
 
 	/* Configure RDY/BSY */
 	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
@@ -130,13 +128,11 @@ static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
 
 void mem_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	struct atmel_mpddrc_config ddr2;
 
 	ddr2_conf(&ddr2);
 
-	/* enable DDR2 clock */
-	writel(AT91_PMC_DDR, &pmc->scer);
+	at91_system_clk_enable(AT91_PMC_DDR);
 
 	/* DDRAM2 Controller initialize */
 	ddr2_init(ATMEL_BASE_DDRSDRC0, ATMEL_BASE_CS6, &ddr2);
@@ -146,9 +142,7 @@ void mem_init(void)
 #ifdef CONFIG_CMD_USB
 static void at91sam9m10g45ek_usb_hw_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
-	writel(1 << ATMEL_ID_PIODE, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIODE);
 
 	at91_set_gpio_output(AT91_PIN_PD1, 0);
 	at91_set_gpio_output(AT91_PIN_PD3, 0);
@@ -158,11 +152,9 @@ static void at91sam9m10g45ek_usb_hw_init(void)
 #ifdef CONFIG_MACB
 static void at91sam9m10g45ek_macb_hw_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
 
-	/* Enable clock */
-	writel(1 << ATMEL_ID_EMAC, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_EMAC);
 
 	/*
 	 * Disable pull-up on:
@@ -222,8 +214,6 @@ void lcd_disable(void)
 
 static void at91sam9m10g45ek_lcd_hw_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
 	at91_set_A_periph(AT91_PIN_PE0, 0);	/* LCDDPWR */
 	at91_set_A_periph(AT91_PIN_PE2, 0);	/* LCDCC */
 	at91_set_A_periph(AT91_PIN_PE3, 0);	/* LCDVSYNC */
@@ -255,7 +245,7 @@ static void at91sam9m10g45ek_lcd_hw_init(void)
 	at91_set_A_periph(AT91_PIN_PE29, 0);	/* LCDD22 */
 	at91_set_A_periph(AT91_PIN_PE30, 0);	/* LCDD23 */
 
-	writel(1 << ATMEL_ID_LCDC, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_LCDC);
 
 	gd->fb_base = CONFIG_AT91SAM9G45_LCD_BASE;
 }
diff --git a/board/atmel/at91sam9m10g45ek/led.c b/board/atmel/at91sam9m10g45ek/led.c
index fe98723962..866052ee1c 100644
--- a/board/atmel/at91sam9m10g45ek/led.c
+++ b/board/atmel/at91sam9m10g45ek/led.c
@@ -9,15 +9,12 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/at91sam9g45.h>
-#include <asm/arch/at91_pmc.h>
+#include <asm/arch/clk.h>
 #include <asm/arch/gpio.h>
 
 void coloured_LED_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
-	/* Enable clock */
-	writel(1 << ATMEL_ID_PIODE, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIODE);
 
 	at91_set_gpio_output(CONFIG_RED_LED, 1);
 	at91_set_gpio_output(CONFIG_GREEN_LED, 1);
diff --git a/board/atmel/at91sam9n12ek/at91sam9n12ek.c b/board/atmel/at91sam9n12ek/at91sam9n12ek.c
index 0b0177df2b..d3555bbdf6 100644
--- a/board/atmel/at91sam9n12ek/at91sam9n12ek.c
+++ b/board/atmel/at91sam9n12ek/at91sam9n12ek.c
@@ -10,7 +10,6 @@
 #include <asm/arch/at91sam9x5_matrix.h>
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/at91_rstc.h>
 #include <asm/arch/at91_pio.h>
 #include <asm/arch/clk.h>
@@ -208,9 +207,8 @@ void at91sam9n12ek_usb_hw_init(void)
 
 int board_early_init_f(void)
 {
-	/* Enable clocks for all PIOs */
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-	writel((1 << ATMEL_ID_PIOAB) | (1 << ATMEL_ID_PIOCD), &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOAB);
+	at91_periph_clk_enable(ATMEL_ID_PIOCD);
 
 	at91_seriald_hw_init();
 	return 0;
diff --git a/board/atmel/at91sam9rlek/at91sam9rlek.c b/board/atmel/at91sam9rlek/at91sam9rlek.c
index f995cef1e2..9ef2864bb1 100644
--- a/board/atmel/at91sam9rlek/at91sam9rlek.c
+++ b/board/atmel/at91sam9rlek/at91sam9rlek.c
@@ -12,7 +12,6 @@
 #include <asm/arch/at91sam9rl_matrix.h>
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/at91_rstc.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/gpio.h>
@@ -36,7 +35,6 @@ static void at91sam9rlek_nand_hw_init(void)
 {
 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
 	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	unsigned long csa;
 
 	/* Enable CS3 */
@@ -64,7 +62,7 @@ static void at91sam9rlek_nand_hw_init(void)
 		AT91_SMC_MODE_TDF_CYCLE(2),
 		&smc->cs[3].mode);
 
-	writel(1 << ATMEL_ID_PIOD, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOD);
 
 	/* Configure RDY/BSY */
 	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
@@ -106,8 +104,6 @@ void lcd_disable(void)
 }
 static void at91sam9rlek_lcd_hw_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
 	at91_set_B_periph(AT91_PIN_PC1, 0);	/* LCDPWR */
 	at91_set_A_periph(AT91_PIN_PC5, 0);	/* LCDHSYNC */
 	at91_set_A_periph(AT91_PIN_PC6, 0);	/* LCDDOTCK */
@@ -130,7 +126,7 @@ static void at91sam9rlek_lcd_hw_init(void)
 	at91_set_B_periph(AT91_PIN_PC24, 0);	/* LCDD22 */
 	at91_set_B_periph(AT91_PIN_PC25, 0);	/* LCDD23 */
 
-	writel(1 << ATMEL_ID_LCDC, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_LCDC);
 }
 
 #ifdef CONFIG_LCD_INFO
@@ -174,12 +170,10 @@ int board_mmc_init(bd_t *bis)
 
 int board_early_init_f(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
-	/* Enable clocks for all PIOs */
-	writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) |
-		(1 << ATMEL_ID_PIOC) | (1 << ATMEL_ID_PIOD),
-		&pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOA);
+	at91_periph_clk_enable(ATMEL_ID_PIOB);
+	at91_periph_clk_enable(ATMEL_ID_PIOC);
+	at91_periph_clk_enable(ATMEL_ID_PIOD);
 
 	return 0;
 }
diff --git a/board/atmel/at91sam9rlek/led.c b/board/atmel/at91sam9rlek/led.c
index fede59cd32..d593aba6e4 100644
--- a/board/atmel/at91sam9rlek/led.c
+++ b/board/atmel/at91sam9rlek/led.c
@@ -8,16 +8,13 @@
 
 #include <common.h>
 #include <asm/arch/at91sam9rl.h>
-#include <asm/arch/at91_pmc.h>
+#include <asm/arch/clk.h>
 #include <asm/arch/gpio.h>
 #include <asm/io.h>
 
 void coloured_LED_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
-	/* Enable clock */
-	writel(ATMEL_ID_PIOD, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOD);
 
 	at91_set_gpio_output(CONFIG_RED_LED, 1);
 	at91_set_gpio_output(CONFIG_GREEN_LED, 1);
diff --git a/board/atmel/at91sam9x5ek/at91sam9x5ek.c b/board/atmel/at91sam9x5ek/at91sam9x5ek.c
index 833e38335a..c14df303b2 100644
--- a/board/atmel/at91sam9x5ek/at91sam9x5ek.c
+++ b/board/atmel/at91sam9x5ek/at91sam9x5ek.c
@@ -9,10 +9,9 @@
 #include <asm/arch/at91sam9x5_matrix.h>
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/at91_rstc.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/clk.h>
+#include <asm/arch/gpio.h>
 #include <lcd.h>
 #include <atmel_hlcdc.h>
 #include <atmel_mci.h>
@@ -39,7 +38,6 @@ static void at91sam9x5ek_nand_hw_init(void)
 {
 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
 	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	unsigned long csa;
 
 	/* Enable CS3 */
@@ -72,7 +70,7 @@ static void at91sam9x5ek_nand_hw_init(void)
 		AT91_SMC_MODE_TDF_CYCLE(1),
 		&smc->cs[3].mode);
 
-	writel(1 << ATMEL_ID_PIOCD, &pmc->pcer);
+	at91_periph_clk_enable(ATMEL_ID_PIOCD);
 
 	/* Configure RDY/BSY */
 	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
@@ -141,8 +139,6 @@ void lcd_disable(void)
 
 static void at91sam9x5ek_lcd_hw_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
 	if (has_lcdc()) {
 		at91_set_a_periph(AT91_PIO_PORTC, 26, 0);	/* LCDPWM */
 		at91_set_a_periph(AT91_PIO_PORTC, 27, 0);	/* LCDVSYNC */
@@ -176,7 +172,7 @@ static void at91sam9x5ek_lcd_hw_init(void)
 		at91_set_a_periph(AT91_PIO_PORTC, 22, 0);	/* LCDD22 */
 		at91_set_a_periph(AT91_PIO_PORTC, 23, 0);	/* LCDD23 */
 
-		writel(1 << ATMEL_ID_LCDC, &pmc->pcer);
+		at91_periph_clk_enable(ATMEL_ID_LCDC);
 	}
 }
 
diff --git a/board/atmel/sama5d2_xplained/sama5d2_xplained.c b/board/atmel/sama5d2_xplained/sama5d2_xplained.c
index 8ed01ddbea..10edf28a9b 100644
--- a/board/atmel/sama5d2_xplained/sama5d2_xplained.c
+++ b/board/atmel/sama5d2_xplained/sama5d2_xplained.c
@@ -15,7 +15,6 @@
 #include <version.h>
 #include <asm/io.h>
 #include <asm/arch/at91_common.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/atmel_pio4.h>
 #include <asm/arch/atmel_mpddrc.h>
 #include <asm/arch/atmel_usba_udc.h>
diff --git a/board/atmel/sama5d3_xplained/sama5d3_xplained.c b/board/atmel/sama5d3_xplained/sama5d3_xplained.c
index 7acb8d0974..c8a5795b1d 100644
--- a/board/atmel/sama5d3_xplained/sama5d3_xplained.c
+++ b/board/atmel/sama5d3_xplained/sama5d3_xplained.c
@@ -184,14 +184,13 @@ static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
 
 void mem_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	struct atmel_mpddrc_config ddr2;
 
 	ddr2_conf(&ddr2);
 
-	/* enable MPDDR clock */
+	/* Enable MPDDR clock */
 	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
-	writel(AT91_PMC_DDR, &pmc->scer);
+	at91_system_clk_enable(AT91_PMC_DDR);
 
 	/* DDRAM2 Controller initialize */
 	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
diff --git a/board/atmel/sama5d3xek/sama5d3xek.c b/board/atmel/sama5d3xek/sama5d3xek.c
index 0d824fc0ba..8576560ee5 100644
--- a/board/atmel/sama5d3xek/sama5d3xek.c
+++ b/board/atmel/sama5d3xek/sama5d3xek.c
@@ -443,14 +443,13 @@ static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
 
 void mem_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	struct atmel_mpddrc_config ddr2;
 
 	ddr2_conf(&ddr2);
 
-	/* enable MPDDR clock */
+	/* Enable MPDDR clock */
 	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
-	writel(AT91_PMC_DDR, &pmc->scer);
+	at91_system_clk_enable(AT91_PMC_DDR);
 
 	/* DDRAM2 Controller initialize */
 	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
diff --git a/board/atmel/sama5d4_xplained/sama5d4_xplained.c b/board/atmel/sama5d4_xplained/sama5d4_xplained.c
index e2f33a3e8b..e154aa9322 100644
--- a/board/atmel/sama5d4_xplained/sama5d4_xplained.c
+++ b/board/atmel/sama5d4_xplained/sama5d4_xplained.c
@@ -383,14 +383,13 @@ static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
 
 void mem_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	struct atmel_mpddrc_config ddr2;
 
 	ddr2_conf(&ddr2);
 
-	/* enable MPDDR clock */
+	/* Enable MPDDR clock */
 	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
-	writel(AT91_PMC_DDR, &pmc->scer);
+	at91_system_clk_enable(AT91_PMC_DDR);
 
 	/* DDRAM2 Controller initialize */
 	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
diff --git a/board/atmel/sama5d4ek/sama5d4ek.c b/board/atmel/sama5d4ek/sama5d4ek.c
index 1799059f87..f174cf5ba4 100644
--- a/board/atmel/sama5d4ek/sama5d4ek.c
+++ b/board/atmel/sama5d4ek/sama5d4ek.c
@@ -379,14 +379,13 @@ static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
 
 void mem_init(void)
 {
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	struct atmel_mpddrc_config ddr2;
 
 	ddr2_conf(&ddr2);
 
-	/* enable MPDDR clock */
+	/* Enable MPDDR clock */
 	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
-	writel(AT91_PMC_DDR, &pmc->scer);
+	at91_system_clk_enable(AT91_PMC_DDR);
 
 	/* DDRAM2 Controller initialize */
 	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);