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author | Stephen Warren <swarren@nvidia.com> | 2012-05-15 06:45:28 (GMT) |
---|---|---|
committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-07-07 12:07:17 (GMT) |
commit | d5ebc937c90b95f52bd85c15ce74edff4df2e0be (patch) | |
tree | 43412c78db6eab5fa174dfe96a09480d29f8eb98 /board/nvidia/whistler/whistler.c | |
parent | b9607e70614823893d1a47a377232d2a12e4464f (diff) | |
download | u-boot-d5ebc937c90b95f52bd85c15ce74edff4df2e0be.tar.xz |
tegra: Whistler board support
Whistler is a highly configurable Tegra evaluation and development board.
This change adds support for the following specific configuration:
E1120 motherboard
E1108 CPU board
E1116 PMU board
The motherboard configuration switches are set as follows:
SW1=0 SW2=0 SW3=5
S1/S2/S3/S4 all on, except S3 7/8 are off.
Other combinations of daugher boards may work to varying degrees, but will
likely require some SW adjustment.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'board/nvidia/whistler/whistler.c')
-rw-r--r-- | board/nvidia/whistler/whistler.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/board/nvidia/whistler/whistler.c b/board/nvidia/whistler/whistler.c new file mode 100644 index 0000000..1c2f33f --- /dev/null +++ b/board/nvidia/whistler/whistler.c @@ -0,0 +1,116 @@ +/* + * (C) Copyright 2010-2012 + * NVIDIA Corporation <www.nvidia.com> + * + * 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 <i2c.h> +#include <asm/io.h> +#include <asm/arch/tegra2.h> +#include <asm/arch/clock.h> +#include <asm/arch/funcmux.h> +#include <asm/arch/pinmux.h> +#include <asm/arch/mmc.h> +#include <asm/gpio.h> +#ifdef CONFIG_TEGRA2_MMC +#include <mmc.h> +#endif + +/* + * Routine: gpio_config_uart + * Description: Does nothing on Whistler - no UART-related GPIOs. + */ +void gpio_config_uart(void) +{ +} + +/* + * Routine: pin_mux_mmc + * Description: setup the pin muxes/tristate values for the SDMMC(s) + */ +static void pin_mux_mmc(void) +{ + funcmux_select(PERIPH_ID_SDMMC3, FUNCMUX_SDMMC3_SDB_SLXA_8BIT); + funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATC_ATD_8BIT); +} + +/* this is a weak define that we are overriding */ +int board_mmc_init(bd_t *bd) +{ + uchar val; + int ret; + + debug("board_mmc_init called\n"); + + /* Turn on MAX8907B LDO12 to 2.8V for J40 power */ + ret = i2c_set_bus_num(0); + if (ret) + printf("i2c_set_bus_num failed: %d\n", ret); + val = 0x29; + ret = i2c_write(0x3c, 0x46, 1, &val, 1); + if (ret) + printf("i2c_write 0 0x3c 0x46 failed: %d\n", ret); + val = 0x00; + ret = i2c_write(0x3c, 0x45, 1, &val, 1); + if (ret) + printf("i2c_write 0 0x3c 0x45 failed: %d\n", ret); + val = 0x1f; + ret = i2c_write(0x3c, 0x44, 1, &val, 1); + if (ret) + printf("i2c_write 0 0x3c 0x44 failed: %d\n", ret); + + /* Enable muxes, etc. for SDMMC controllers */ + pin_mux_mmc(); + + /* init dev 0 (SDMMC4), (J29 "HSMMC") with 8-bit bus */ + tegra2_mmc_init(0, 8, -1, -1); + + /* init dev 1 (SDMMC3), (J40 "SDIO3") with 8-bit bus */ + tegra2_mmc_init(1, 8, -1, -1); + + return 0; +} + +/* this is a weak define that we are overriding */ +void pin_mux_usb(void) +{ + uchar val; + int ret; + + /* + * This is a hack. This should be represented in DT using the + * vbus-gpio property. However, U-Boot's DT support doesn't + * support any GPIO controller other than the Tegra's yet. + */ + + /* Turn on TAC6416's GPIO 0+1 for USB1/3's VBUS */ + ret = i2c_set_bus_num(0); + if (ret) + printf("i2c_set_bus_num failed: %d\n", ret); + val = 0x03; + ret = i2c_write(0x20, 2, 1, &val, 1); + if (ret) + printf("i2c_write 0 0x20 2 failed: %d\n", ret); + val = 0xfc; + ret = i2c_write(0x20, 6, 1, &val, 1); + if (ret) + printf("i2c_write 0 0x20 6 failed: %d\n", ret); +} |