Signed-off-by: Ryan Mallon ryan@bluewatersys.com --- board/bluewater/snapper9260/Makefile | 55 +++++++++ board/bluewater/snapper9260/config.mk | 1 + board/bluewater/snapper9260/snapper9260.c | 177 +++++++++++++++++++++++++++++ 3 files changed, 233 insertions(+), 0 deletions(-) create mode 100644 board/bluewater/snapper9260/Makefile create mode 100644 board/bluewater/snapper9260/config.mk create mode 100644 board/bluewater/snapper9260/snapper9260.c
diff --git a/board/bluewater/snapper9260/Makefile b/board/bluewater/snapper9260/Makefile new file mode 100644 index 0000000..20d2406 --- /dev/null +++ b/board/bluewater/snapper9260/Makefile @@ -0,0 +1,55 @@ +# +# (C) Copyright 2003-2008 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# (C) Copyright 2011 Bluewater Systems +# +# 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 $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).o + +COBJS-y += snapper9260.o + +SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS-y)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) + $(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@ + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/bluewater/snapper9260/config.mk b/board/bluewater/snapper9260/config.mk new file mode 100644 index 0000000..e554a45 --- /dev/null +++ b/board/bluewater/snapper9260/config.mk @@ -0,0 +1 @@ +CONFIG_SYS_TEXT_BASE = 0x23f00000 diff --git a/board/bluewater/snapper9260/snapper9260.c b/board/bluewater/snapper9260/snapper9260.c new file mode 100644 index 0000000..04cb0a8 --- /dev/null +++ b/board/bluewater/snapper9260/snapper9260.c @@ -0,0 +1,177 @@ +/* + * Bluewater Systems Snapper 9260/9G20 modules + * + * (C) Copyright 2011 Bluewater Systems + * Author: Andre Renaud andre@bluewatersys.com + * Author: Ryan Mallon ryan@bluewatersys.com + * + * 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/sizes.h> +#include <asm/arch/at91sam9260.h> +#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/at91_rstc.h> +#include <asm/arch/at91_pio.h> +#include <asm/arch/clk.h> +#include <asm/arch/gpio.h> +#include <asm/arch/io.h> +#include <asm/arch/hardware.h> +#include <net.h> +#include <netdev.h> + +#include <i2c.h> +#include <pca953x.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* The mach-type is the same for both Snapper 9260 and 9G20 */ +#define SNAPPER9260_MACH_TYPE 1987 + +#define IO_EXP_ETH_RESET (0 << 1) +#define IO_EXP_ETH_POWER (1 << 1) + +static void macb_hw_init(void) +{ + unsigned long rstc; + + /* Enable clock */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC); + + /* Disable pull-ups to prevent PHY going into test mode */ + writel(pin_to_mask(AT91_PIN_PA14) | + pin_to_mask(AT91_PIN_PA15) | + pin_to_mask(AT91_PIN_PA18), + pin_to_controller(AT91_PIN_PA0) + PIO_PUDR); + + /* Power down ethernet */ + pca953x_set_dir(0x28, IO_EXP_ETH_POWER, PCA953X_DIR_OUT); + pca953x_set_val(0x28, IO_EXP_ETH_POWER, 1); + + /* Hold ethernet in reset */ + pca953x_set_dir(0x28, IO_EXP_ETH_RESET, PCA953X_DIR_OUT); + pca953x_set_val(0x28, IO_EXP_ETH_RESET, 0); + + /* Enable ethernet power */ + pca953x_set_val(0x28, IO_EXP_ETH_POWER, 0); + + rstc = at91_sys_read(AT91_RSTC_MR) & AT91_RSTC_ERSTL; + + /* Need to reset PHY -> 500ms reset */ + at91_sys_write(AT91_RSTC_MR, (AT91_RSTC_KEY | + (AT91_RSTC_ERSTL & (0x0d << 8)) | + AT91_RSTC_URSTEN)); + + at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST); + + /* Wait for end hardware reset */ + while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL)); + + /* Restore NRST value */ + at91_sys_write(AT91_RSTC_MR, (rstc | AT91_RSTC_KEY | + AT91_RSTC_URSTEN)); + + /* Bring the ethernet out of reset */ + pca953x_set_val(0x28, IO_EXP_ETH_RESET, 1); + + /* The phy internal reset take 21ms */ + udelay(21 * 1000); + + /* Re-enable pull-up */ + writel(pin_to_mask(AT91_PIN_PA14) | + pin_to_mask(AT91_PIN_PA15) | + pin_to_mask(AT91_PIN_PA18), + pin_to_controller(AT91_PIN_PA0) + PIO_PUER); + + at91_macb_hw_init(); +} + +static void nand_hw_init(void) +{ + unsigned long csa; + + /* Enable CS3 */ + csa = at91_sys_read(AT91_MATRIX_EBICSA); + at91_sys_write(AT91_MATRIX_EBICSA, + csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); + + /* Configure SMC CS3 for NAND/SmartMedia */ + at91_sys_write(AT91_SMC_SETUP(3), + AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | + AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0)); + at91_sys_write(AT91_SMC_PULSE(3), + AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(4) | + AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(4)); + at91_sys_write(AT91_SMC_CYCLE(3), + AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7)); + at91_sys_write(AT91_SMC_MODE(3), + AT91_SMC_READMODE | AT91_SMC_WRITEMODE | + AT91_SMC_EXNWMODE_DISABLE | + AT91_SMC_DBW_8 | + AT91_SMC_TDF_(3)); + + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC); + + /* Configure RDY/BSY */ + at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); + + /* Enable NandFlash */ + at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); +} + +int board_init(void) +{ + /* Enable Ctrl-c */ + console_init_f(); + + gd->bd->bi_arch_number = SNAPPER9260_MACH_TYPE; + + /* Address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + /* Enable PIO clocks */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOA); + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOB); + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC); + + /* Initalise i2c (for IO expander) */ + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + + at91_serial_hw_init(); + nand_hw_init(); + macb_hw_init(); + + return 0; +} + +int board_eth_init(bd_t *bis) +{ + return macb_eth_initialize(0, (void *)AT91SAM9260_BASE_EMAC, 0x1f); +} + +int dram_init(void) +{ + gd->ram_size = CONFIG_SYS_SDRAM_SIZE; + return 0; +} + +void reset_phy(void) +{ +}