diff options
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/board.h | 30 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/clock.h | 11 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/funcmux.h | 41 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/mmc.h | 27 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/tegra2.h | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/tegra2_spi.h | 76 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/uart-spi-switch.h | 46 |
7 files changed, 232 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-tegra2/board.h b/arch/arm/include/asm/arch-tegra2/board.h new file mode 100644 index 0000000000..a90d36c708 --- /dev/null +++ b/arch/arm/include/asm/arch-tegra2/board.h @@ -0,0 +1,30 @@ +/* + * (C) Copyright 2010,2011 + * 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 + */ + +#ifndef _TEGRA_BOARD_H_ +#define _TEGRA_BOARD_H_ + +/* Setup UARTs for the board according to the selected config */ +void board_init_uart_f(void); + +#endif diff --git a/arch/arm/include/asm/arch-tegra2/clock.h b/arch/arm/include/asm/arch-tegra2/clock.h index 49e9904b57..080ef18e81 100644 --- a/arch/arm/include/asm/arch-tegra2/clock.h +++ b/arch/arm/include/asm/arch-tegra2/clock.h @@ -344,6 +344,17 @@ unsigned clock_adjust_periph_pll_div(enum periph_id periph_id, */ unsigned clock_get_rate(enum clock_id clkid); +/** + * Start up a UART using low-level calls + * + * Prior to relocation clock_start_periph_pll() cannot be called. This + * function provides a way to set up a UART using low-level calls which + * do not require BSS. + * + * @param periph_id Peripheral ID of UART to enable (e,g, PERIPH_ID_UART1) + */ +void clock_ll_start_uart(enum periph_id periph_id); + /* * Checks that clocks are valid and prints a warning if not * diff --git a/arch/arm/include/asm/arch-tegra2/funcmux.h b/arch/arm/include/asm/arch-tegra2/funcmux.h new file mode 100644 index 0000000000..2d724a2872 --- /dev/null +++ b/arch/arm/include/asm/arch-tegra2/funcmux.h @@ -0,0 +1,41 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * 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 + */ + +/* Tegra2 high-level function multiplexing */ + +#ifndef __FUNCMUX_H +#define __FUNCMUX_H + +/** + * Select a config for a particular peripheral. + * + * Each peripheral can operate through a number of configurations, + * which are sets of pins that it uses to bring out its signals. + * The basic config is 0, and higher numbers indicate different + * pinmux settings to bring the peripheral out on other pins, + * + * @param id Peripheral id + * @param config Configuration to use (generally 0) + * @return 0 if ok, -1 on error (e.g. incorrect id or config) + */ +int funcmux_select(enum periph_id id, int config); + +#endif diff --git a/arch/arm/include/asm/arch-tegra2/mmc.h b/arch/arm/include/asm/arch-tegra2/mmc.h new file mode 100644 index 0000000000..c1f12dbe49 --- /dev/null +++ b/arch/arm/include/asm/arch-tegra2/mmc.h @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2011, Google Inc. All rights reserved. + * 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 + */ + +#ifndef _TEGRA2_MMC_H_ +#define _TEGRA2_MMC_H_ + +int tegra2_mmc_init(int dev_index, int bus_width, int pwr_gpio, int cd_gpio); + +#endif /* TEGRA2_MMC_H_ */ diff --git a/arch/arm/include/asm/arch-tegra2/tegra2.h b/arch/arm/include/asm/arch-tegra2/tegra2.h index 742a75a0da..8941443ad8 100644 --- a/arch/arm/include/asm/arch-tegra2/tegra2.h +++ b/arch/arm/include/asm/arch-tegra2/tegra2.h @@ -38,6 +38,7 @@ #define NV_PA_APB_UARTC_BASE (NV_PA_APB_MISC_BASE + 0x6200) #define NV_PA_APB_UARTD_BASE (NV_PA_APB_MISC_BASE + 0x6300) #define NV_PA_APB_UARTE_BASE (NV_PA_APB_MISC_BASE + 0x6400) +#define TEGRA2_SPI_BASE (NV_PA_APB_MISC_BASE + 0xC380) #define NV_PA_PMC_BASE 0x7000E400 #define NV_PA_CSITE_BASE 0x70040000 diff --git a/arch/arm/include/asm/arch-tegra2/tegra2_spi.h b/arch/arm/include/asm/arch-tegra2/tegra2_spi.h new file mode 100644 index 0000000000..ceec4287a3 --- /dev/null +++ b/arch/arm/include/asm/arch-tegra2/tegra2_spi.h @@ -0,0 +1,76 @@ +/* + * NVIDIA Tegra2 SPI-FLASH controller + * + * Copyright 2010-2011 NVIDIA Corporation + * + * This software may be used and distributed according to the + * terms of the GNU Public License, Version 2, incorporated + * herein by reference. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + * + * 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 + */ + +#ifndef _TEGRA2_SPI_H_ +#define _TEGRA2_SPI_H_ + +#include <asm/types.h> + +struct spi_tegra { + u32 command; /* SPI_COMMAND_0 register */ + u32 status; /* SPI_STATUS_0 register */ + u32 rx_cmp; /* SPI_RX_CMP_0 register */ + u32 dma_ctl; /* SPI_DMA_CTL_0 register */ + u32 tx_fifo; /* SPI_TX_FIFO_0 register */ + u32 rsvd[3]; /* offsets 0x14 to 0x1F reserved */ + u32 rx_fifo; /* SPI_RX_FIFO_0 register */ +}; + +#define SPI_CMD_GO (1 << 30) +#define SPI_CMD_ACTIVE_SCLK_SHIFT 26 +#define SPI_CMD_ACTIVE_SCLK_MASK (3 << SPI_CMD_ACTIVE_SCLK_SHIFT) +#define SPI_CMD_CK_SDA (1 << 21) +#define SPI_CMD_ACTIVE_SDA_SHIFT 18 +#define SPI_CMD_ACTIVE_SDA_MASK (3 << SPI_CMD_ACTIVE_SDA_SHIFT) +#define SPI_CMD_CS_POL (1 << 16) +#define SPI_CMD_TXEN (1 << 15) +#define SPI_CMD_RXEN (1 << 14) +#define SPI_CMD_CS_VAL (1 << 13) +#define SPI_CMD_CS_SOFT (1 << 12) +#define SPI_CMD_CS_DELAY (1 << 9) +#define SPI_CMD_CS3_EN (1 << 8) +#define SPI_CMD_CS2_EN (1 << 7) +#define SPI_CMD_CS1_EN (1 << 6) +#define SPI_CMD_CS0_EN (1 << 5) +#define SPI_CMD_BIT_LENGTH (1 << 4) +#define SPI_CMD_BIT_LENGTH_MASK 0x0000001F + +#define SPI_STAT_BSY (1 << 31) +#define SPI_STAT_RDY (1 << 30) +#define SPI_STAT_RXF_FLUSH (1 << 29) +#define SPI_STAT_TXF_FLUSH (1 << 28) +#define SPI_STAT_RXF_UNR (1 << 27) +#define SPI_STAT_TXF_OVF (1 << 26) +#define SPI_STAT_RXF_EMPTY (1 << 25) +#define SPI_STAT_RXF_FULL (1 << 24) +#define SPI_STAT_TXF_EMPTY (1 << 23) +#define SPI_STAT_TXF_FULL (1 << 22) +#define SPI_STAT_SEL_TXRX_N (1 << 16) +#define SPI_STAT_CUR_BLKCNT (1 << 15) + +#define SPI_TIMEOUT 1000 +#define TEGRA2_SPI_MAX_FREQ 52000000 + + +#endif /* _TEGRA2_SPI_H_ */ diff --git a/arch/arm/include/asm/arch-tegra2/uart-spi-switch.h b/arch/arm/include/asm/arch-tegra2/uart-spi-switch.h new file mode 100644 index 0000000000..e4503b15b0 --- /dev/null +++ b/arch/arm/include/asm/arch-tegra2/uart-spi-switch.h @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * 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 + */ + +#ifndef _UART_SPI_SWITCH_H +#define _UART_SPI_SWITCH_H + +#if defined(CONFIG_SPI_UART_SWITCH) +/* + * Signal that we are about to use the UART. This unfortunate hack is + * required by Seaboard, which cannot use its console and SPI at the same + * time! If the board file provides this, the board config will declare it. + * Let this be a lesson for others. + */ +void pinmux_select_uart(NS16550_t regs); + +/* + * Signal that we are about the use the SPI bus. + */ +void pinmux_select_spi(void); + +#else /* not CONFIG_SPI_UART_SWITCH */ + +static inline void pinmux_select_uart(NS16550_t regs) {} +static inline void pinmux_select_spi(void) {} + +#endif + +#endif |