From 49fe2ba3138ca60422fd90ed76c1918be1c30fc0 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Mon, 10 Oct 2011 18:29:24 +0200 Subject: ARM: at91: dt: at91sam9g45 family and board device tree files Create a new device tree source file for Atmel at91sam9g45 SoC family. The Evaluation Kit at91sam9m10g45ek includes it. This first basic support will be populated as drivers and boards will be converted to device tree. Contains serial, dma and interrupt controllers. The generic board file still takes advantage of platform data for early serial init. As we need a storage media and the NAND flash driver is not converted to DT yet, we keep old initialization for it. Signed-off-by: Nicolas Ferre Reviewed-by: Rob Herring --- arch/arm/mach-at91/board-dt.c | 122 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 arch/arm/mach-at91/board-dt.c (limited to 'arch/arm/mach-at91/board-dt.c') diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c new file mode 100644 index 000000000000..33a0d8b549b4 --- /dev/null +++ b/arch/arm/mach-at91/board-dt.c @@ -0,0 +1,122 @@ +/* + * Setup code for AT91SAM Evaluation Kits with Device Tree support + * + * Covers: * AT91SAM9G45-EKES board + * * AT91SAM9M10-EKES board + * * AT91SAM9M10G45-EK board + * + * Copyright (C) 2011 Atmel, + * 2011 Nicolas Ferre + * + * Licensed under GPLv2 or later. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "sam9_smc.h" +#include "generic.h" + + +static void __init ek_init_early(void) +{ + /* Initialize processor: 12.000 MHz crystal */ + at91_initialize(12000000); + + /* DGBU on ttyS0. (Rx & Tx only) */ + at91_register_uart(0, 0, 0); + + /* set serial console to ttyS0 (ie, DBGU) */ + at91_set_serial_console(0); +} + +/* det_pin is not connected */ +static struct atmel_nand_data __initdata ek_nand_data = { + .ale = 21, + .cle = 22, + .rdy_pin = AT91_PIN_PC8, + .enable_pin = AT91_PIN_PC14, +}; + +static struct sam9_smc_config __initdata ek_nand_smc_config = { + .ncs_read_setup = 0, + .nrd_setup = 2, + .ncs_write_setup = 0, + .nwe_setup = 2, + + .ncs_read_pulse = 4, + .nrd_pulse = 4, + .ncs_write_pulse = 4, + .nwe_pulse = 4, + + .read_cycle = 7, + .write_cycle = 7, + + .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, + .tdf_cycles = 3, +}; + +static void __init ek_add_device_nand(void) +{ + ek_nand_data.bus_width_16 = board_have_nand_16bit(); + /* setup bus-width (8 or 16) */ + if (ek_nand_data.bus_width_16) + ek_nand_smc_config.mode |= AT91_SMC_DBW_16; + else + ek_nand_smc_config.mode |= AT91_SMC_DBW_8; + + /* configure chip-select 3 (NAND) */ + sam9_smc_configure(3, &ek_nand_smc_config); + + at91_add_device_nand(&ek_nand_data); +} + +static const struct of_device_id aic_of_match[] __initconst = { + { .compatible = "atmel,at91rm9200-aic", }, + {}, +}; + +static void __init at91_dt_init_irq(void) +{ + irq_domain_generate_simple(aic_of_match, 0xfffff000, 0); + at91_init_irq_default(); +} + +static void __init at91_dt_device_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + + /* NAND */ + ek_add_device_nand(); +} + +static const char *at91_dt_board_compat[] __initdata = { + "atmel,at91sam9m10g45ek", + NULL +}; + +DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)") + /* Maintainer: Atmel */ + .timer = &at91sam926x_timer, + .map_io = at91_map_io, + .init_early = ek_init_early, + .init_irq = at91_dt_init_irq, + .init_machine = at91_dt_device_init, + .dt_compat = at91_dt_board_compat, +MACHINE_END -- cgit v1.2.1 From fea3158c5508f3a96b0cfec6d37a239aa7f3ed4b Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Fri, 14 Oct 2011 09:40:52 +0800 Subject: ARM: at91: add at91sam9g20 and Calao USB A9G20 DT support Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Nicolas Ferre Reviewed-by: Rob Herring --- arch/arm/mach-at91/board-dt.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm/mach-at91/board-dt.c') diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c index 33a0d8b549b4..0b7d32778210 100644 --- a/arch/arm/mach-at91/board-dt.c +++ b/arch/arm/mach-at91/board-dt.c @@ -108,6 +108,7 @@ static void __init at91_dt_device_init(void) static const char *at91_dt_board_compat[] __initdata = { "atmel,at91sam9m10g45ek", + "calao,usb-a9g20", NULL }; -- cgit v1.2.1