arm : Atmel : add at91sam9x5ek board support

Add at91sam9x5ek board support, this board support the following SoCs
  AT91SAM9G15, AT91SAM9G25, AT91SAM9G35, AT91SAM9X25, AT91SAM9X35

Using at91sam9x5ek_nandflash to configure for the board
Now only supports NAND with software ECC boot up

Signed-off-by: Bo Shen <voice.shen@atmel.com>
[move MAINTAINERS entry to right place]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

3 files changed, 243 insertions, 2 deletions

diff --git a/arch/arm/cpu/arm926ejs/at91/Makefile b/arch/arm/cpu/arm926ejs/at91/Makefile
index f333753c71..346e58faee 100644
--- a/arch/arm/cpu/arm926ejs/at91/Makefile
+++ b/arch/arm/cpu/arm926ejs/at91/Makefile
@@ -35,6 +35,7 @@ COBJS-$(CONFIG_AT91SAM9263)	+= at91sam9263_devices.o
 COBJS-$(CONFIG_AT91SAM9RL)	+= at91sam9rl_devices.o
 COBJS-$(CONFIG_AT91SAM9M10G45)	+= at91sam9m10g45_devices.o
 COBJS-$(CONFIG_AT91SAM9G45)	+= at91sam9m10g45_devices.o
+COBJS-$(CONFIG_AT91SAM9X5)	+= at91sam9x5_devices.o
 COBJS-$(CONFIG_AT91_EFLASH)	+= eflash.o
 COBJS-$(CONFIG_AT91_LED)	+= led.o
 COBJS-y += clock.o
diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
new file mode 100644
index 0000000000..7558ca27b7
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2012 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/io.h>
+
+unsigned int get_chip_id(void)
+{
+	/* The 0x40 is the offset of cidr in DBGU */
+	return readl(ATMEL_BASE_DBGU + 0x40) & ~ARCH_ID_VERSION_MASK;
+}
+
+unsigned int get_extension_chip_id(void)
+{
+	/* The 0x44 is the offset of exid in DBGU */
+	return readl(ATMEL_BASE_DBGU + 0x44);
+}
+
+unsigned int has_emac1()
+{
+	return cpu_is_at91sam9x25();
+}
+
+unsigned int has_emac0()
+{
+	return !(cpu_is_at91sam9g15());
+}
+
+unsigned int has_lcdc()
+{
+	return cpu_is_at91sam9g15() || cpu_is_at91sam9g35()
+		|| cpu_is_at91sam9x35();
+}
+
+char *get_cpu_name()
+{
+	unsigned int extension_id = get_extension_chip_id();
+
+	if (cpu_is_at91sam9x5()) {
+		switch (extension_id) {
+		case ARCH_EXID_AT91SAM9G15:
+			return CONFIG_SYS_AT91_G15_CPU_NAME;
+		case ARCH_EXID_AT91SAM9G25:
+			return CONFIG_SYS_AT91_G25_CPU_NAME;
+		case ARCH_EXID_AT91SAM9G35:
+			return CONFIG_SYS_AT91_G35_CPU_NAME;
+		case ARCH_EXID_AT91SAM9X25:
+			return CONFIG_SYS_AT91_X25_CPU_NAME;
+		case ARCH_EXID_AT91SAM9X35:
+			return CONFIG_SYS_AT91_X35_CPU_NAME;
+		default:
+			return CONFIG_SYS_AT91_UNKNOWN_CPU;
+		}
+	} else {
+		return CONFIG_SYS_AT91_UNKNOWN_CPU;
+	}
+}
+
+void at91_seriald_hw_init(void)
+{
+	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+	at91_set_a_periph(AT91_PIO_PORTA, 9, 0);	/* DRXD */
+	at91_set_a_periph(AT91_PIO_PORTA, 10, 1);	/* DTXD */
+
+	writel(1 << ATMEL_ID_SYS, &pmc->pcer);
+}
+
+void at91_serial0_hw_init(void)
+{
+	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+	at91_set_a_periph(AT91_PIO_PORTA, 0, 1);	/* TXD */
+	at91_set_a_periph(AT91_PIO_PORTA, 1, 0);	/* RXD */
+
+	writel(1 << ATMEL_ID_USART0, &pmc->pcer);
+}
+
+void at91_serial1_hw_init(void)
+{
+	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+	at91_set_a_periph(AT91_PIO_PORTA, 5, 1);	/* TXD */
+	at91_set_a_periph(AT91_PIO_PORTA, 6, 0);	/* RXD */
+
+	writel(1 << ATMEL_ID_USART1, &pmc->pcer);
+}
+
+void at91_serial2_hw_init(void)
+{
+	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+	at91_set_a_periph(AT91_PIO_PORTA, 7, 1);	/* TXD */
+	at91_set_a_periph(AT91_PIO_PORTA, 8, 0);	/* RXD */
+
+	writel(1 << ATMEL_ID_USART2, &pmc->pcer);
+}
+
+#ifdef CONFIG_ATMEL_SPI
+void at91_spi0_hw_init(unsigned long cs_mask)
+{
+	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_PMC_BASE;
+
+	at91_set_a_periph(AT91_PIO_PORTA, 11, 0);	/* SPI0_MISO */
+	at91_set_a_periph(AT91_PIO_PORTA, 12, 0);	/* SPI0_MOSI */
+	at91_set_a_periph(AT91_PIO_PORTA, 13, 0);	/* SPI0_SPCK */
+
+	/* Enable clock */
+	writel(1 << ATMEL_ID_SPI0, &pmc->pcer);
+
+	if (cs_mask & (1 << 0))
+		at91_set_a_periph(AT91_PIO_PORTA, 14, 0);
+	if (cs_mask & (1 << 1))
+		at91_set_b_periph(AT91_PIO_PORTA, 7, 0);
+	if (cs_mask & (1 << 2))
+		at91_set_b_periph(AT91_PIO_PORTA, 1, 0);
+	if (cs_mask & (1 << 3))
+		at91_set_b_periph(AT91_PIO_PORTB, 3, 0);
+	if (cs_mask & (1 << 4))
+		at91_set_pio_output(AT91_PIO_PORTA, 14, 0);
+	if (cs_mask & (1 << 5))
+		at91_set_pio_output(AT91_PIO_PORTA, 7, 0);
+	if (cs_mask & (1 << 6))
+		at91_set_pio_output(AT91_PIO_PORTA, 1, 0);
+	if (cs_mask & (1 << 7))
+		at91_set_pio_output(AT91_PIO_PORTB, 3, 0);
+}
+
+void at91_spi1_hw_init(unsigned long cs_mask)
+{
+	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_PMC_BASE;
+
+	at91_set_b_periph(AT91_PIO_PORTA, 21, 0);	/* SPI1_MISO */
+	at91_set_b_periph(AT91_PIO_PORTA, 22, 0);	/* SPI1_MOSI */
+	at91_set_b_periph(AT91_PIO_PORTA, 23, 0);	/* SPI1_SPCK */
+
+	/* Enable clock */
+	writel(1 << ATMEL_ID_SPI1, &pmc->pcer);
+
+	if (cs_mask & (1 << 0))
+		at91_set_b_periph(AT91_PIO_PORTA, 8, 0);
+	if (cs_mask & (1 << 1))
+		at91_set_b_periph(AT91_PIO_PORTA, 0, 0);
+	if (cs_mask & (1 << 2))
+		at91_set_b_periph(AT91_PIO_PORTA, 31, 0);
+	if (cs_mask & (1 << 3))
+		at91_set_b_periph(AT91_PIO_PORTA, 30, 0);
+	if (cs_mask & (1 << 4))
+		at91_set_pio_output(AT91_PIO_PORTA, 8, 0);
+	if (cs_mask & (1 << 5))
+		at91_set_pio_output(AT91_PIO_PORTA, 0, 0);
+	if (cs_mask & (1 << 6))
+		at91_set_pio_output(AT91_PIO_PORTA, 31, 0);
+	if (cs_mask & (1 << 7))
+		at91_set_pio_output(AT91_PIO_PORTA, 30, 0);
+}
+#endif
+
+#ifdef CONFIG_MACB
+void at91_macb_hw_init(void)
+{
+	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+	if (has_emac0()) {
+		/* Enable EMAC0 clock */
+		writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
+		/* EMAC0 pins setup */
+		at91_set_a_periph(AT91_PIO_PORTB, 4, 0);	/* ETXCK */
+		at91_set_a_periph(AT91_PIO_PORTB, 3, 0);	/* ERXDV */
+		at91_set_a_periph(AT91_PIO_PORTB, 0, 0);	/* ERX0 */
+		at91_set_a_periph(AT91_PIO_PORTB, 1, 0);	/* ERX1 */
+		at91_set_a_periph(AT91_PIO_PORTB, 2, 0);	/* ERXER */
+		at91_set_a_periph(AT91_PIO_PORTB, 7, 0);	/* ETXEN */
+		at91_set_a_periph(AT91_PIO_PORTB, 9, 0);	/* ETX0 */
+		at91_set_a_periph(AT91_PIO_PORTB, 10, 0);	/* ETX1 */
+		at91_set_a_periph(AT91_PIO_PORTB, 5, 0);	/* EMDIO */
+		at91_set_a_periph(AT91_PIO_PORTB, 6, 0);	/* EMDC */
+	}
+
+	if (has_emac1()) {
+		/* Enable EMAC1 clock */
+		writel(1 << ATMEL_ID_EMAC1, &pmc->pcer);
+		/* EMAC1 pins setup */
+		at91_set_b_periph(AT91_PIO_PORTC, 29, 0);	/* ETXCK */
+		at91_set_b_periph(AT91_PIO_PORTC, 28, 0);	/* ECRSDV */
+		at91_set_b_periph(AT91_PIO_PORTC, 20, 0);	/* ERXO */
+		at91_set_b_periph(AT91_PIO_PORTC, 21, 0);	/* ERX1 */
+		at91_set_b_periph(AT91_PIO_PORTC, 16, 0);	/* ERXER */
+		at91_set_b_periph(AT91_PIO_PORTC, 27, 0);	/* ETXEN */
+		at91_set_b_periph(AT91_PIO_PORTC, 18, 0);	/* ETX0 */
+		at91_set_b_periph(AT91_PIO_PORTC, 19, 0);	/* ETX1 */
+		at91_set_b_periph(AT91_PIO_PORTC, 31, 0);	/* EMDIO */
+		at91_set_b_periph(AT91_PIO_PORTC, 30, 0);	/* EMDC */
+	}
+
+#ifndef CONFIG_RMII
+	/* Only emac0 support MII */
+	if (has_emac0()) {
+		at91_set_b_periph(AT91_PIO_PORTB, 16, 0);	/* ECRS */
+		at91_set_b_periph(AT91_PIO_PORTB, 17, 0);	/* ECOL */
+		at91_set_b_periph(AT91_PIO_PORTB, 13, 0);	/* ERX2 */
+		at91_set_b_periph(AT91_PIO_PORTB, 14, 0);	/* ERX3 */
+		at91_set_b_periph(AT91_PIO_PORTB, 15, 0);	/* ERXCK */
+		at91_set_b_periph(AT91_PIO_PORTB, 11, 0);	/* ETX2 */
+		at91_set_b_periph(AT91_PIO_PORTB, 12, 0);	/* ETX3 */
+		at91_set_b_periph(AT91_PIO_PORTB, 8, 0);	/* ETXER */
+	}
+#endif
+}
+#endif
diff --git a/arch/arm/cpu/arm926ejs/at91/clock.c b/arch/arm/cpu/arm926ejs/at91/clock.c
index a7085deac0..dc5c6c4b0b 100644
--- a/arch/arm/cpu/arm926ejs/at91/clock.c
+++ b/arch/arm/cpu/arm926ejs/at91/clock.c
@@ -154,7 +154,8 @@ int at91_clock_init(unsigned long main_clock)
 	 * For now, assume this parentage won't change.
 	 */
 	mckr = readl(&pmc->mckr);
-#if defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45)
+#if defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45) \
+		|| defined(CONFIG_AT91SAM9X5)
 	/* plla divisor by 2 */
 	gd->plla_rate_hz /= (1 << ((mckr & 1 << 12) >> 12));
 #endif
@@ -168,7 +169,14 @@ int at91_clock_init(unsigned long main_clock)
 		freq / ((mckr & AT91_PMC_MCKR_MDIV_MASK) >> 7) : freq;
 	if (mckr & AT91_PMC_MCKR_MDIV_MASK)
 		freq /= 2;			/* processor clock division */
-#elif defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45)
+#elif defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45) \
+		|| defined(CONFIG_AT91SAM9X5)
+	/* mdiv <==> divisor
+	 *  0   <==>   1
+	 *  1   <==>   2
+	 *  2   <==>   4
+	 *  3   <==>   3
+	 */
 	gd->mck_rate_hz = (mckr & AT91_PMC_MCKR_MDIV_MASK) ==
 		(AT91_PMC_MCKR_MDIV_2 | AT91_PMC_MCKR_MDIV_4)
 		? freq / 3