summaryrefslogtreecommitdiffstats
path: root/arch/avr32/boards
diff options
context:
space:
mode:
authorHans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>2009-12-03 14:58:20 +0100
committerHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2009-12-14 19:33:33 +0100
commit3550b9313b88d9ae74812eaba22e0ddf9ac9f2ae (patch)
tree121c0a418d9b013f6d889902681b7264cf26f0d9 /arch/avr32/boards
parentce378f7da8dd2fb6c5bb126505ea1d0c6cdc8eb5 (diff)
downloadlinux-3550b9313b88d9ae74812eaba22e0ddf9ac9f2ae.tar.gz
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>
Diffstat (limited to 'arch/avr32/boards')
-rw-r--r--arch/avr32/boards/atngw100/Kconfig25
-rw-r--r--arch/avr32/boards/atngw100/evklcd10x.c7
-rw-r--r--arch/avr32/boards/atngw100/setup.c120
3 files changed, 134 insertions, 18 deletions
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_ADDON_NONE
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 @@ if BOARD_ATNGW100_MRMT
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 @@ static int __init atevklcd10x_init(void)
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 @@ unsigned long at32_board_osc_rates[3] = {
[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 spi_board_info spi0_board_info[] __initdata = {
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 @@ static int __init atngw100_init(void)
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, &eth_data[0]));
+#ifndef CONFIG_BOARD_ATNGW100_MKII_LCD
set_hw_addr(at32_add_device_eth(1, &eth_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 @@ static int __init atngw100_init(void)
/* 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 @@ postcore_initcall(atngw100_init);
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.