avr32: add support for ATNGW100 mkII board
This patch adds board support for ATNGW100 mkII. This board is an upgrade of
the ATNGW100 where the difference is an additional 256 MB NAND flash device and
128 MB 32-bit SDRAM instead of the 32 MB 16-bit SDRAM on ATNGW100.
Tested on ATNGW100 mkII, duh (-:
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 35e3bd9..9b339bf 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -111,6 +111,11 @@
bool
select CPU_AT32AP700X
+# AP700X boards
+config BOARD_ATNGW100_COMMON
+ bool
+ select CPU_AT32AP7000
+
choice
prompt "AVR32 board type"
default BOARD_ATSTK1000
@@ -118,9 +123,13 @@
config BOARD_ATSTK1000
bool "ATSTK1000 evaluation board"
-config BOARD_ATNGW100
+config BOARD_ATNGW100_MKI
bool "ATNGW100 Network Gateway"
- select CPU_AT32AP7000
+ select BOARD_ATNGW100_COMMON
+
+config BOARD_ATNGW100_MKII
+ bool "ATNGW100 mkII Network Gateway"
+ select BOARD_ATNGW100_COMMON
config BOARD_HAMMERHEAD
bool "Hammerhead board"
diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
index c21a329..ead8a75 100644
--- a/arch/avr32/Makefile
+++ b/arch/avr32/Makefile
@@ -32,7 +32,7 @@
head-y += arch/avr32/kernel/head.o
core-y += $(machdirs)
core-$(CONFIG_BOARD_ATSTK1000) += arch/avr32/boards/atstk1000/
-core-$(CONFIG_BOARD_ATNGW100) += arch/avr32/boards/atngw100/
+core-$(CONFIG_BOARD_ATNGW100_COMMON) += arch/avr32/boards/atngw100/
core-$(CONFIG_BOARD_HAMMERHEAD) += arch/avr32/boards/hammerhead/
core-$(CONFIG_BOARD_FAVR_32) += arch/avr32/boards/favr-32/
core-$(CONFIG_BOARD_MERISC) += arch/avr32/boards/merisc/
diff --git a/arch/avr32/boards/atngw100/Kconfig b/arch/avr32/boards/atngw100/Kconfig
index be27a02..4e55617 100644
--- a/arch/avr32/boards/atngw100/Kconfig
+++ b/arch/avr32/boards/atngw100/Kconfig
@@ -1,6 +1,17 @@
# NGW100 customization
-if BOARD_ATNGW100
+if BOARD_ATNGW100_COMMON
+
+config BOARD_ATNGW100_MKII_LCD
+ bool "Enable ATNGW100 mkII LCD interface"
+ depends on BOARD_ATNGW100_MKII
+ help
+ This enables the LCD controller (LCDC) in the AT32AP7000. Since the
+ LCDC is multiplexed with MACB1 (LAN) Ethernet port, only one can be
+ enabled at a time.
+
+ This choice enables the LCDC and disables the MACB1 interface marked
+ LAN on the PCB.
choice
prompt "Select an NGW100 add-on board to support"
@@ -11,15 +22,11 @@
config BOARD_ATNGW100_EVKLCD10X
bool "EVKLCD10X addon board"
+ depends on BOARD_ATNGW100_MKI || BOARD_ATNGW100_MKII_LCD
help
This enables support for the EVKLCD100 (QVGA) or EVKLCD101 (VGA)
- addon board for the NGW100. By enabling this the LCD controller and
- AC97 controller is added as platform devices.
-
- This choice disables the detect pin and the write-protect pin for the
- MCI platform device, since it conflicts with the LCD platform device.
- The MCI pins can be reenabled by editing the "add device function" but
- this may break the setup for other displays that use these pins.
+ addon board for the NGW100 and NGW100 mkII. By enabling this the LCD
+ controller and AC97 controller is added as platform devices.
config BOARD_ATNGW100_MRMT
bool "Mediama RMT1/2 add-on board"
@@ -55,4 +62,4 @@
source "arch/avr32/boards/atngw100/Kconfig_mrmt"
endif
-endif # BOARD_ATNGW100
+endif # BOARD_ATNGW100_COMMON
diff --git a/arch/avr32/boards/atngw100/evklcd10x.c b/arch/avr32/boards/atngw100/evklcd10x.c
index 0033711..2038875 100644
--- a/arch/avr32/boards/atngw100/evklcd10x.c
+++ b/arch/avr32/boards/atngw100/evklcd10x.c
@@ -164,7 +164,12 @@
at32_add_device_lcdc(0, &atevklcd10x_lcdc_data,
fbmem_start, fbmem_size,
- ATMEL_LCDC_ALT_18BIT | ATMEL_LCDC_PE_DVAL);
+#ifdef CONFIG_BOARD_ATNGW100_MKII
+ ATMEL_LCDC_PRI_18BIT | ATMEL_LCDC_PC_DVAL
+#else
+ ATMEL_LCDC_ALT_18BIT | ATMEL_LCDC_PE_DVAL
+#endif
+ );
at32_add_device_ac97c(0, &ac97c0_data, AC97C_BOTH);
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c
index 5b022aa..8c6a244 100644
--- a/arch/avr32/boards/atngw100/setup.c
+++ b/arch/avr32/boards/atngw100/setup.c
@@ -20,6 +20,7 @@
#include <linux/leds.h>
#include <linux/spi/spi.h>
#include <linux/atmel-mci.h>
+#include <linux/usb/atmel_usba_udc.h>
#include <asm/io.h>
#include <asm/setup.h>
@@ -36,6 +37,75 @@
[2] = 12000000, /* 12 MHz on osc1 */
};
+/*
+ * The ATNGW100 mkII is very similar to the ATNGW100. Both have the AT32AP7000
+ * chip on board; the difference is that the ATNGW100 mkII has 128 MB 32-bit
+ * SDRAM (the ATNGW100 has 32 MB 16-bit SDRAM) and 256 MB 16-bit NAND flash
+ * (the ATNGW100 has none.)
+ *
+ * The RAM difference is handled by the boot loader, so the only difference we
+ * end up handling here is the NAND flash, EBI pin reservation and if LCDC or
+ * MACB1 should be enabled.
+ */
+#ifdef CONFIG_BOARD_ATNGW100_MKII
+#include <linux/mtd/partitions.h>
+#include <mach/smc.h>
+
+static struct smc_timing nand_timing __initdata = {
+ .ncs_read_setup = 0,
+ .nrd_setup = 10,
+ .ncs_write_setup = 0,
+ .nwe_setup = 10,
+
+ .ncs_read_pulse = 30,
+ .nrd_pulse = 15,
+ .ncs_write_pulse = 30,
+ .nwe_pulse = 15,
+
+ .read_cycle = 30,
+ .write_cycle = 30,
+
+ .ncs_read_recover = 0,
+ .nrd_recover = 15,
+ .ncs_write_recover = 0,
+ /* WE# high -> RE# low min 60 ns */
+ .nwe_recover = 50,
+};
+
+static struct smc_config nand_config __initdata = {
+ .bus_width = 2,
+ .nrd_controlled = 1,
+ .nwe_controlled = 1,
+ .nwait_mode = 0,
+ .byte_write = 0,
+ .tdf_cycles = 2,
+ .tdf_mode = 0,
+};
+
+static struct mtd_partition nand_partitions[] = {
+ {
+ .name = "main",
+ .offset = 0x00000000,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+static struct mtd_partition *nand_part_info(int size, int *num_partitions)
+{
+ *num_partitions = ARRAY_SIZE(nand_partitions);
+ return nand_partitions;
+}
+
+static struct atmel_nand_data atngw100mkii_nand_data __initdata = {
+ .cle = 21,
+ .ale = 22,
+ .rdy_pin = GPIO_PIN_PB(28),
+ .enable_pin = GPIO_PIN_PE(23),
+ .bus_width_16 = true,
+ .partition_info = nand_part_info,
+};
+#endif
+
/* Initialized by bootloader-specific startup code. */
struct tag *bootloader_tags __initdata;
@@ -56,11 +126,24 @@
static struct mci_platform_data __initdata mci0_data = {
.slot[0] = {
.bus_width = 4,
+#if defined(CONFIG_BOARD_ATNGW100_MKII)
+ .detect_pin = GPIO_PIN_PC(25),
+ .wp_pin = GPIO_PIN_PE(22),
+#else
.detect_pin = GPIO_PIN_PC(25),
.wp_pin = GPIO_PIN_PE(0),
+#endif
},
};
+static struct usba_platform_data atngw100_usba_data __initdata = {
+#if defined(CONFIG_BOARD_ATNGW100_MKII)
+ .vbus_pin = GPIO_PIN_PE(26),
+#else
+ .vbus_pin = -ENODEV,
+#endif
+};
+
/*
* The next two functions should go away as the boot loader is
* supposed to initialize the macb address registers with a valid
@@ -168,18 +251,27 @@
unsigned i;
/*
- * ATNGW100 uses 16-bit SDRAM interface, so we don't need to
- * reserve any pins for it.
+ * ATNGW100 mkII uses 32-bit SDRAM interface. Reserve the
+ * SDRAM-specific pins so that nobody messes with them.
*/
+#ifdef CONFIG_BOARD_ATNGW100_MKII
+ at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL);
+
+ smc_set_timing(&nand_config, &nand_timing);
+ smc_set_configuration(3, &nand_config);
+ at32_add_device_nand(0, &atngw100mkii_nand_data);
+#endif
at32_add_device_usart(0);
set_hw_addr(at32_add_device_eth(0, ð_data[0]));
+#ifndef CONFIG_BOARD_ATNGW100_MKII_LCD
set_hw_addr(at32_add_device_eth(1, ð_data[1]));
+#endif
at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
at32_add_device_mci(0, &mci0_data);
- at32_add_device_usba(0, NULL);
+ at32_add_device_usba(0, &atngw100_usba_data);
for (i = 0; i < ARRAY_SIZE(ngw_leds); i++) {
at32_select_gpio(ngw_leds[i].gpio,
@@ -189,10 +281,14 @@
/* all these i2c/smbus pins should have external pullups for
* open-drain sharing among all I2C devices. SDA and SCL do;
- * PB28/EXTINT3 doesn't; it should be SMBALERT# (for PMBus),
- * but it's not available off-board.
+ * PB28/EXTINT3 (ATNGW100) and PE21 (ATNGW100 mkII) doesn't; it should
+ * be SMBALERT# (for PMBus), but it's not available off-board.
*/
+#ifdef CONFIG_BOARD_ATNGW100_MKII
+ at32_select_periph(GPIO_PIOE_BASE, 1 << 21, 0, AT32_GPIOF_PULLUP);
+#else
at32_select_periph(GPIO_PIOB_BASE, 1 << 28, 0, AT32_GPIOF_PULLUP);
+#endif
at32_select_gpio(i2c_gpio_data.sda_pin,
AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
at32_select_gpio(i2c_gpio_data.scl_pin,
@@ -206,14 +302,22 @@
static int __init atngw100_arch_init(void)
{
- /* PB30 is the otherwise unused jumper on the mainboard, with an
- * external pullup; the jumper grounds it. Use it however you
- * like, including letting U-Boot or Linux tweak boot sequences.
+ /* PB30 (ATNGW100) and PE30 (ATNGW100 mkII) is the otherwise unused
+ * jumper on the mainboard, with an external pullup; the jumper grounds
+ * it. Use it however you like, including letting U-Boot or Linux tweak
+ * boot sequences.
*/
+#ifdef CONFIG_BOARD_ATNGW100_MKII
+ at32_select_gpio(GPIO_PIN_PE(30), 0);
+ gpio_request(GPIO_PIN_PE(30), "j15");
+ gpio_direction_input(GPIO_PIN_PE(30));
+ gpio_export(GPIO_PIN_PE(30), false);
+#else
at32_select_gpio(GPIO_PIN_PB(30), 0);
gpio_request(GPIO_PIN_PB(30), "j15");
gpio_direction_input(GPIO_PIN_PB(30));
gpio_export(GPIO_PIN_PB(30), false);
+#endif
/* set_irq_type() after the arch_initcall for EIC has run, and
* before the I2C subsystem could try using this IRQ.