This change adds initial support for NXP LPC32x0 SoC series.

Signed-off-by: Vladimir Zapolskiy vz@mleia.com --- Changes from v2 to v3: * checkpatch.pl reports zero errors and warnings

Changes from v1 to v2: * BIT(n) and SBF(s, v) macro are not used anymore * removed NS16550 and 14-clock UART definitions from uart.h * added devices.c file, which contains standard UART preinitialization routine * added get_serial_clock() function, it returns actual frequency of UART clock * __udelay() realization is simplified, no need of interrupt handling

arch/arm/cpu/arm926ejs/lpc32xx/Makefile | 45 ++++++++ arch/arm/cpu/arm926ejs/lpc32xx/clkpwr.c | 101 ++++++++++++++++++ arch/arm/cpu/arm926ejs/lpc32xx/cpu.c | 46 ++++++++ arch/arm/cpu/arm926ejs/lpc32xx/devices.c | 47 +++++++++ arch/arm/cpu/arm926ejs/lpc32xx/timer.c | 94 +++++++++++++++++ arch/arm/include/asm/arch-lpc32xx/clk.h | 155 ++++++++++++++++++++++++++++ arch/arm/include/asm/arch-lpc32xx/config.h | 50 +++++++++ arch/arm/include/asm/arch-lpc32xx/cpu.h | 62 +++++++++++ arch/arm/include/asm/arch-lpc32xx/timer.h | 74 +++++++++++++ arch/arm/include/asm/arch-lpc32xx/uart.h | 54 ++++++++++ arch/arm/include/asm/arch-lpc32xx/wdt.h | 51 +++++++++ 11 files changed, 779 insertions(+), 0 deletions(-) create mode 100644 arch/arm/cpu/arm926ejs/lpc32xx/Makefile create mode 100644 arch/arm/cpu/arm926ejs/lpc32xx/clkpwr.c create mode 100644 arch/arm/cpu/arm926ejs/lpc32xx/cpu.c create mode 100644 arch/arm/cpu/arm926ejs/lpc32xx/devices.c create mode 100644 arch/arm/cpu/arm926ejs/lpc32xx/timer.c create mode 100644 arch/arm/include/asm/arch-lpc32xx/clk.h create mode 100644 arch/arm/include/asm/arch-lpc32xx/config.h create mode 100644 arch/arm/include/asm/arch-lpc32xx/cpu.h create mode 100644 arch/arm/include/asm/arch-lpc32xx/timer.h create mode 100644 arch/arm/include/asm/arch-lpc32xx/uart.h create mode 100644 arch/arm/include/asm/arch-lpc32xx/wdt.h

diff --git a/arch/arm/cpu/arm926ejs/lpc32xx/Makefile b/arch/arm/cpu/arm926ejs/lpc32xx/Makefile new file mode 100644 index 0000000..29b4dc8 --- /dev/null +++ b/arch/arm/cpu/arm926ejs/lpc32xx/Makefile @@ -0,0 +1,45 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# 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 = $(obj)lib$(SOC).o + +COBJS = cpu.o clkpwr.o devices.o timer.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) + +all: $(obj).depend $(LIB) + +$(LIB): $(OBJS) + $(call cmd_link_o_target, $(OBJS)) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/arm/cpu/arm926ejs/lpc32xx/clkpwr.c b/arch/arm/cpu/arm926ejs/lpc32xx/clkpwr.c new file mode 100644 index 0000000..adae8b0 --- /dev/null +++ b/arch/arm/cpu/arm926ejs/lpc32xx/clkpwr.c @@ -0,0 +1,101 @@ +/* + * Copyright (C) 2011 by Vladimir Zapolskiy vz@mleia.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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#include <common.h> +#include <div64.h> +#include <asm/arch/cpu.h> +#include <asm/arch/clk.h> +#include <asm/io.h> + +static struct clk_t *clk = (struct clk_t *)CLK_PM_BASE; + +unsigned int get_sys_clk_rate(void) +{ + if (readl(&clk->sysclk_ctrl) & CLK_SYSCLK_PLL397) + return RTC_CLK_FREQUENCY * 397; + else + return OSC_CLK_FREQUENCY; +} + +unsigned int get_hclk_pll_rate(void) +{ + unsigned long long fin, fref, fcco, fout; + u32 val, m_div, n_div, p_div; + + /* + * Valid frequency ranges: + * 1 * 10^6 <= Fin <= 20 * 10^6 + * 1 * 10^6 <= Fref <= 27 * 10^6 + * 156 * 10^6 <= Fcco <= 320 * 10^6 + * + * Due to these frequency constraints and divider values it could be + * shown that 32bit values used here for operations are not overflowed + */ + + fref = fin = get_sys_clk_rate(); + if (fin > 20000000ULL || fin < 1000000ULL) + return 0; + + val = readl(&clk->hclkpll_ctrl); + m_div = ((val & CLK_HCLK_PLL_FEEDBACK_DIV_MASK) >> 1) + 1; + n_div = ((val & CLK_HCLK_PLL_PREDIV_MASK) >> 9) + 1; + if (val & CLK_HCLK_PLL_DIRECT) + p_div = 0; + else + p_div = ((val & CLK_HCLK_PLL_POSTDIV_MASK) >> 11) + 1; + p_div = 1 << p_div; + + if (val & CLK_HCLK_PLL_BYPASS) { + do_div(fin, p_div); + return fin; + } + + do_div(fref, n_div); + if (fref > 27000000ULL || fref < 1000000ULL) + return 0; + + if (val & CLK_HCLK_PLL_FEEDBACK) { + fout = fcco = fref * m_div; + do_div(fout, p_div); + } else { + fout = fref * m_div; + fcco = fout * p_div; + } + + if (fcco > 320000000ULL || fcco < 156000000ULL) + return 0; + + return fout; +} + +unsigned int get_periph_clk_rate(void) +{ + u32 val; + + if (!(readl(&clk->pwr_ctrl) & CLK_PWR_NORMAL_RUN)) + return get_sys_clk_rate(); + + val = (readl(&clk->hclkdiv_ctrl) & CLK_HCLK_PERIPH_DIV_MASK) >> 2; + return get_hclk_pll_rate() / (val + 1); +} + +int get_serial_clock(void) +{ + return get_periph_clk_rate(); +} diff --git a/arch/arm/cpu/arm926ejs/lpc32xx/cpu.c b/arch/arm/cpu/arm926ejs/lpc32xx/cpu.c new file mode 100644 index 0000000..39684d7 --- /dev/null +++ b/arch/arm/cpu/arm926ejs/lpc32xx/cpu.c @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2011 by Vladimir Zapolskiy vz@mleia.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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#include <common.h> +#include <asm/arch/cpu.h> +#include <asm/arch/clk.h> +#include <asm/arch/wdt.h> +#include <asm/io.h> + +static struct clk_t *clk = (struct clk_t *)CLK_PM_BASE; +static struct wdtim_t *wdt = (struct wdtim_t *)WDT_BASE; + +void reset_cpu(ulong addr) +{ + u32 val; + + /* Enable watchdog clock */ + val = readl(&clk->timclk_ctrl); + writel(val | CLKPWR_TIMCLK_WATCHDOG, &clk->timclk_ctrl); + + /* Reset pulse length is 13005 PERIPH_CLKs */ + writel(13000, &wdt->pulse); + + /* Force WDOG_RESET2 and RESOUT_N signal active */ + writel(WDTIM_MCTRL_RESFRC2 | WDTIM_MCTRL_RESFRC1 | WDTIM_MCTRL_M_RES2, + &wdt->mctrl); + + while (1) + /* NOP */; +} diff --git a/arch/arm/cpu/arm926ejs/lpc32xx/devices.c b/arch/arm/cpu/arm926ejs/lpc32xx/devices.c new file mode 100644 index 0000000..5616e53 --- /dev/null +++ b/arch/arm/cpu/arm926ejs/lpc32xx/devices.c @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2011 by Vladimir Zapolskiy vz@mleia.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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#include <common.h> +#include <asm/arch/cpu.h> +#include <asm/arch/clk.h> +#include <asm/arch/uart.h> +#include <asm/io.h> + +static struct clk_t *clk = (struct clk_t *)CLK_PM_BASE; +static struct uart_ctrl_t *uart_control = (struct uart_ctrl_t *)UART_CTRL_BASE; + +void lpc32xx_uart_init(unsigned int uart_id) +{ + u32 val; + + if (uart_id < 3 || uart_id > 6) + return; + + /* Enable UART system clock */ + val = readl(&clk->uartclk_ctrl); + writel(val | CLKPWR_UART(uart_id), &clk->uartclk_ctrl); + + /* Place UART in autoclock mode */ + val = readl(&uart_control->clkmode) & ~UART_CLKMODE_MASK(uart_id); + writel(val | UART_CLKMODE_AUTO(uart_id), &uart_control->clkmode); + + /* Bypass pre-divider of UART clock */ + val = CLKPWR_UART_X_DIV(1) | CLKPWR_UART_Y_DIV(1); + writel(val, &clk->u3clk + (uart_id - 3)); +} diff --git a/arch/arm/cpu/arm926ejs/lpc32xx/timer.c b/arch/arm/cpu/arm926ejs/lpc32xx/timer.c new file mode 100644 index 0000000..725c036 --- /dev/null +++ b/arch/arm/cpu/arm926ejs/lpc32xx/timer.c @@ -0,0 +1,94 @@ +/* + * Copyright (C) 2011 Vladimir Zapolskiy vz@mleia.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/arch/cpu.h> +#include <asm/arch/clk.h> +#include <asm/arch/timer.h> +#include <asm/io.h> + +static struct timer_t *timer0 = (struct timer_t *)TIMER0_BASE; +static struct timer_t *timer1 = (struct timer_t *)TIMER1_BASE; +static struct clk_t *clk = (struct clk_t *)CLK_PM_BASE; + +static void lpc32xx_timer_clock(u32 bit, int enable) +{ + u32 val = readl(&clk->timclk_ctrl1); + + if (enable) + val |= bit; + else + val &= ~bit; + + writel(val, &clk->timclk_ctrl1); +} + +static void lpc32xx_timer_reset(struct timer_t *timer, u32 freq) +{ + writel(TIMER_TCR_COUNTER_RESET, &timer->tcr); + writel(TIMER_TCR_COUNTER_DISABLE, &timer->tcr); + writel(0, &timer->tc); + writel(0, &timer->pr); + + /* Count mode is every rising PCLK edge */ + writel(TIMER_CTCR_MODE_TIMER, &timer->ctcr); + + /* Set prescale counter value */ + writel((get_periph_clk_rate() / freq) - 1, &timer->pr); +} + +static void lpc32xx_timer_count(struct timer_t *timer, int enable) +{ + if (enable) + writel(TIMER_TCR_COUNTER_ENABLE, &timer->tcr); + else + writel(TIMER_TCR_COUNTER_DISABLE, &timer->tcr); +} + +int timer_init(void) +{ + lpc32xx_timer_clock(CLKPWR_TIMCLK_TIMER0, 1); + lpc32xx_timer_reset(timer0, CONFIG_SYS_HZ); + lpc32xx_timer_count(timer0, 1); + + return 0; +} + +ulong get_timer(ulong base) +{ + return readl(&timer0->tc) - base; +} + +void __udelay(unsigned long usec) +{ + lpc32xx_timer_clock(CLKPWR_TIMCLK_TIMER1, 1); + lpc32xx_timer_reset(timer1, CONFIG_SYS_HZ * 1000); + lpc32xx_timer_count(timer1, 1); + + while (readl(&timer1->tc) < usec) + /* NOP */; + + lpc32xx_timer_count(timer1, 0); + lpc32xx_timer_clock(CLKPWR_TIMCLK_TIMER1, 0); +} + +ulong get_tbclk(void) +{ + return CONFIG_SYS_HZ; +} diff --git a/arch/arm/include/asm/arch-lpc32xx/clk.h b/arch/arm/include/asm/arch-lpc32xx/clk.h new file mode 100644 index 0000000..d42f06f --- /dev/null +++ b/arch/arm/include/asm/arch-lpc32xx/clk.h @@ -0,0 +1,155 @@ +/* + * Copyright (C) 2011 by Vladimir Zapolskiy vz@mleia.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 + */ + +#ifndef _LPC32XX_CLK_H +#define _LPC32XX_CLK_H + +#include <asm/types.h> + +#define OSC_CLK_FREQUENCY 13000000 +#define RTC_CLK_FREQUENCY 32768 + +/* Clocking and Power Control Registers */ +struct clk_t { + u32 reserved0[5]; + u32 boot_map; /* Boot Map Control Register */ + u32 p0_intr_er; /* Port 0/1 Start and interrupt Enable Register */ + u32 usbdiv_ctrl; /* USB Clock Pre-Divide Register */ + /* Internal Start Signal Sources Registers */ + u32 start_er_int; /* Start Enable Register */ + u32 start_rsr_int; /* Start Raw Status Register */ + u32 start_sr_int; /* Start Status Register */ + u32 start_apr_int; /* Start Activation Polarity Register */ + /* Device Pin Start Signal Sources Registers */ + u32 start_er_pin; /* Start Enable Register */ + u32 start_rsr_pin; /* Start Raw Status Register */ + u32 start_sr_pin; /* Start Status Register */ + u32 start_apr_pin; /* Start Activation Polarity Register */ + /* Clock Control Registers */ + u32 hclkdiv_ctrl; /* HCLK Divider Control Register */ + u32 pwr_ctrl; /* Power Control Register */ + u32 pll397_ctrl; /* PLL397 Control Register */ + u32 osc_ctrl; /* Main Oscillator Control Register */ + u32 sysclk_ctrl; /* SYSCLK Control Register */ + u32 lcdclk_ctrl; /* LCD Clock Control Register */ + u32 hclkpll_ctrl; /* HCLK PLL Control Register */ + u32 reserved1; + u32 adclk_ctrl1; /* ADC Clock Control1 Register */ + u32 usb_ctrl; /* USB Control Register */ + u32 sdramclk_ctrl; /* SDRAM Clock Control Register */ + u32 ddr_lap_nom; /* DDR Calibration Nominal Value */ + u32 ddr_lap_count; /* DDR Calibration Measured Value */ + u32 ddr_cal_delay; /* DDR Calibration Delay Value */ + u32 ssp_ctrl; /* SSP Control Register */ + u32 i2s_ctrl; /* I2S Clock Control Register */ + u32 ms_ctrl; /* Memory Card Control Register */ + u32 reserved2[3]; + u32 macclk_ctrl; /* Ethernet MAC Clock Control Register */ + u32 reserved3[4]; + u32 test_clk; /* Test Clock Selection Register */ + u32 sw_int; /* Software Interrupt Register */ + u32 i2cclk_ctrl; /* I2C Clock Control Register */ + u32 keyclk_ctrl; /* Keyboard Scan Clock Control Register */ + u32 adclk_ctrl; /* ADC Clock Control Register */ + u32 pwmclk_ctrl; /* PWM Clock Control Register */ + u32 timclk_ctrl; /* Timer Clock Control Register */ + u32 timclk_ctrl1; /* Timer Clock Control1 and MCPWM Register */ + u32 spi_ctrl; /* SPI Control Register */ + u32 flashclk_ctrl; /* NAND Flash Clock Control Register */ + u32 reserved4; + u32 u3clk; /* UART 3 Clock Control Register */ + u32 u4clk; /* UART 4 Clock Control Register */ + u32 u5clk; /* UART 5 Clock Control Register */ + u32 u6clk; /* UART 6 Clock Control Register */ + u32 irdaclk; /* IrDA Clock Control Register */ + u32 uartclk_ctrl; /* UART Clock Control Register */ + u32 dmaclk_ctrl; /* DMA Clock Control Register */ + u32 autoclk_ctrl; /* Autoclock Control Register */ +}; + +/* HCLK Divider Control Register bits */ +#define CLK_HCLK_DDRAM_HALF (0x2 << 7) +#define CLK_HCLK_DDRAM_NOMINAL (0x1 << 7) +#define CLK_HCLK_DDRAM_STOPPED (0x0 << 7) +#define CLK_HCLK_PERIPH_DIV_MASK (0x1F << 2) +#define CLK_HCLK_PERIPH_DIV(n) (((n - 1) & 0x1F) << 2) +#define CLK_HCLK_ARM_PLL_DIV_4 (0x2 << 0) +#define CLK_HCLK_ARM_PLL_DIV_2 (0x1 << 0) +#define CLK_HCLK_ARM_PLL_DIV_1 (0x0 << 0) + +/* Power Control Register bits */ +#define CLK_PWR_HCLK_RUN_PERIPH (1 << 10) +#define CLK_PWR_EMC_SREFREQ (1 << 9) +#define CLK_PWR_EMC_SREFREQ_UPDATE (1 << 8) +#define CLK_PWR_SDRAM_SREFREQ (1 << 7) +#define CLK_PWR_HIGHCORE_LEVEL (1 << 5) +#define CLK_PWR_SYSCLKEN_LEVEL (1 << 4) +#define CLK_PWR_SYSCLKEN_CTRL (1 << 3) +#define CLK_PWR_NORMAL_RUN (1 << 2) +#define CLK_PWR_HIGHCORE_CTRL (1 << 1) +#define CLK_PWR_STOP_MODE (1 << 0) + +/* SYSCLK Control Register bits */ +#define CLK_SYSCLK_PLL397 (1 << 1) +#define CLK_SYSCLK_MUX (1 << 0) + +/* HCLK PLL Control Register bits */ +#define CLK_HCLK_PLL_OPERATING (1 << 16) +#define CLK_HCLK_PLL_BYPASS (1 << 15) +#define CLK_HCLK_PLL_DIRECT (1 << 14) +#define CLK_HCLK_PLL_FEEDBACK (1 << 13) +#define CLK_HCLK_PLL_POSTDIV_MASK (0x3 << 11) +#define CLK_HCLK_PLL_POSTDIV_16 (0x3 << 11) +#define CLK_HCLK_PLL_POSTDIV_8 (0x2 << 11) +#define CLK_HCLK_PLL_POSTDIV_4 (0x1 << 11) +#define CLK_HCLK_PLL_POSTDIV_2 (0x0 << 11) +#define CLK_HCLK_PLL_PREDIV_MASK (0x3 << 9) +#define CLK_HCLK_PLL_PREDIV_4 (0x3 << 9) +#define CLK_HCLK_PLL_PREDIV_3 (0x2 << 9) +#define CLK_HCLK_PLL_PREDIV_2 (0x1 << 9) +#define CLK_HCLK_PLL_PREDIV_1 (0x0 << 9) +#define CLK_HCLK_PLL_FEEDBACK_DIV_MASK (0xFF << 1) +#define CLK_HCLK_PLL_FEEDBACK_DIV(n) (((n - 1) & 0xFF) << 1) +#define CLK_HCLK_PLL_LOCKED (1 << 0) + +/* Timer Clock Control1 Register bits */ +#define CLKPWR_TIMCLK_MOTOR (1 << 5) +#define CLKPWR_TIMCLK_TIMER3 (1 << 5) +#define CLKPWR_TIMCLK_TIMER2 (1 << 4) +#define CLKPWR_TIMCLK_TIMER1 (1 << 3) +#define CLKPWR_TIMCLK_TIMER0 (1 << 2) +#define CLKPWR_TIMCLK_TIMER5 (1 << 1) +#define CLKPWR_TIMCLK_TIMER4 (1 << 0) + +/* Timer Clock Control Register bits */ +#define CLKPWR_TIMCLK_HSTIMER (1 << 1) +#define CLKPWR_TIMCLK_WATCHDOG (1 << 0) + +/* UART Clock Control Register bits */ +#define CLKPWR_UART(n) (1 << ((n) - 3)) + +/* UARTn Clock Select Registers bits */ +#define CLKPWR_UART_HCLK (1 << 16) +#define CLKPWR_UART_X_DIV(n) (((n) & 0xFF) << 8) +#define CLKPWR_UART_Y_DIV(n) (((n) & 0xFF) << 0) + +unsigned int get_sys_clk_rate(void); +unsigned int get_hclk_pll_rate(void); +unsigned int get_periph_clk_rate(void); + +#endif /* _LPC32XX_CLK_H */ diff --git a/arch/arm/include/asm/arch-lpc32xx/config.h b/arch/arm/include/asm/arch-lpc32xx/config.h new file mode 100644 index 0000000..2d46673 --- /dev/null +++ b/arch/arm/include/asm/arch-lpc32xx/config.h @@ -0,0 +1,50 @@ +/* + * Common definitions for LPC32XX board configurations + * + * (C) Copyright 2011 Vladimir Zapolskiy vz@mleia.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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#ifndef _LPC32XX_CONFIG_H +#define _LPC32XX_CONFIG_H + +/* Basic CPU architecture */ +#define CONFIG_ARM926EJS 1 + +#define CONFIG_NR_DRAM_BANKS_MAX 2 + +/* 1KHz clock tick */ +#define CONFIG_SYS_HZ 1000 + +/* + * UART configuration + */ +#if defined(CONFIG_SYS_NS16550_SERIAL) +#define CONFIG_SYS_NS16550 + +#define CONFIG_SYS_NS16550_REG_SIZE -4 +#define CONFIG_SYS_NS16550_CLK get_serial_clock() + +#define CONFIG_SYS_NS16550_COM1 UART3_BASE +#define CONFIG_SYS_NS16550_COM2 UART4_BASE +#define CONFIG_SYS_NS16550_COM3 UART5_BASE +#define CONFIG_SYS_NS16550_COM4 UART6_BASE + +#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } +#endif + +#endif /* _LPC32XX_CONFIG_H */ diff --git a/arch/arm/include/asm/arch-lpc32xx/cpu.h b/arch/arm/include/asm/arch-lpc32xx/cpu.h new file mode 100644 index 0000000..b02dc38 --- /dev/null +++ b/arch/arm/include/asm/arch-lpc32xx/cpu.h @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2011 by Vladimir Zapolskiy vz@mleia.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 + */ + +#ifndef _LPC32XX_CPU_H +#define _LPC32XX_CPU_H + +/* LPC32XX Memory map */ + +/* AHB physical base addresses */ +#define SLC_NAND_BASE 0x20020000 /* SLC NAND Flash registers base */ +#define SSP0_BASE 0x20084000 /* SSP0 registers base */ +#define SD_CARD_BASE 0x20098000 /* SD card interface registers base */ +#define MLC_NAND_BASE 0x200A8000 /* MLC NAND Flash registers base */ +#define DMA_BASE 0x31000000 /* DMA controller registers base */ +#define USB_BASE 0x31020000 /* USB registers base */ +#define ETHERNET_BASE 0x31060000 /* Ethernet registers base */ +#define EMC_BASE 0x31080000 /* EMC configuration registers base */ + +/* FAB peripherals base addresses */ +#define CLK_PM_BASE 0x40004000 /* System control registers base */ +#define HS_UART1_BASE 0x40014000 /* High speed UART 1 registers base */ +#define HS_UART2_BASE 0x40018000 /* High speed UART 2 registers base */ +#define HS_UART7_BASE 0x4001C000 /* High speed UART 7 registers base */ +#define GPIO_BASE 0x40028000 /* GPIO registers base */ +#define WDT_BASE 0x4003C000 /* Watchdog timer registers base */ +#define TIMER0_BASE 0x40044000 /* Timer0 registers base */ +#define TIMER1_BASE 0x4004C000 /* Timer1 registers base */ +#define UART_CTRL_BASE 0x40054000 /* UART control regsisters base */ + +/* APB peripherals base addresses */ +#define UART3_BASE 0x40080000 /* UART 3 registers base */ +#define UART4_BASE 0x40088000 /* UART 4 registers base */ +#define UART5_BASE 0x40090000 /* UART 5 registers base */ +#define UART6_BASE 0x40098000 /* UART 6 registers base */ + +/* External SDRAM Memory Bank base addresses */ +#define EMC_DYCS0_BASE 0x80000000 /* SDRAM DYCS0 base address */ +#define EMC_DYCS1_BASE 0xA0000000 /* SDRAM DYCS1 base address */ + +/* External Static Memory Bank base addresses */ +#define EMC_CS0_BASE 0xE0000000 +#define EMC_CS1_BASE 0xE1000000 +#define EMC_CS2_BASE 0xE2000000 +#define EMC_CS3_BASE 0xE3000000 + +#endif /* _LPC32XX_CPU_H */ diff --git a/arch/arm/include/asm/arch-lpc32xx/timer.h b/arch/arm/include/asm/arch-lpc32xx/timer.h new file mode 100644 index 0000000..c11401b --- /dev/null +++ b/arch/arm/include/asm/arch-lpc32xx/timer.h @@ -0,0 +1,74 @@ +/* + * Copyright (C) 2011 by Vladimir Zapolskiy vz@mleia.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 + */ + +#ifndef _LPC32XX_TIMER_H +#define _LPC32XX_TIMER_H + +#include <asm/types.h> + +/* Timer/Counter Registers */ +struct timer_t { + u32 ir; /* Interrupt Register */ + u32 tcr; /* Timer Control Register */ + u32 tc; /* Timer Counter */ + u32 pr; /* Prescale Register */ + u32 pc; /* Prescale Counter */ + u32 mcr; /* Match Control Register */ + u32 mr[4]; /* Match Registers */ + u32 ccr; /* Capture Control Register */ + u32 cr[4]; /* Capture Registers */ + u32 emr; /* External Match Register */ + u32 reserved[12]; + u32 ctcr; /* Count Control Register */ +}; + +/* Timer/Counter Interrupt Register bits */ +#define TIMER_IR_CR(n) (1 << ((n) + 4)) +#define TIMER_IR_MR(n) (1 << (n)) + +/* Timer/Counter Timer Control Register bits */ +#define TIMER_TCR_COUNTER_RESET (1 << 1) +#define TIMER_TCR_COUNTER_ENABLE (1 << 0) +#define TIMER_TCR_COUNTER_DISABLE 0x00 + +/* Timer/Counter Match Control Register bits */ +#define TIMER_MCR_STOP(n) (1 << (3 * (n) + 2)) +#define TIMER_MCR_RESET(n) (1 << (3 * (n) + 1)) +#define TIMER_MCR_INTERRUPT(n) (1 << (3 * (n))) + +/* Timer/Counter Capture Control Register bits */ +#define TIMER_CCR_INTERRUPT(n) (1 << (3 * (n) + 2)) +#define TIMER_CCR_FALLING_EDGE(n) (1 << (3 * (n) + 1)) +#define TIMER_CCR_RISING_EDGE(n) (1 << (3 * (n))) + +/* Timer/Counter External Match Register bits */ +#define TIMER_EMR_EMC_TOGGLE(n) (0x3 << (2 * (n) + 4)) +#define TIMER_EMR_EMC_SET(n) (0x2 << (2 * (n) + 4)) +#define TIMER_EMR_EMC_CLEAR(n) (0x1 << (2 * (n) + 4)) +#define TIMER_EMR_EMC_NOTHING(n) (0x0 << (2 * (n) + 4)) +#define TIMER_EMR_EM(n) (1 << (n)) + +/* Timer/Counter Count Control Register bits */ +#define TIMER_CTCR_INPUT(n) ((n) << 2) +#define TIMER_CTCR_MODE_COUNTER_BOTH (0x3 << 0) +#define TIMER_CTCR_MODE_COUNTER_FALLING (0x2 << 0) +#define TIMER_CTCR_MODE_COUNTER_RISING (0x1 << 0) +#define TIMER_CTCR_MODE_TIMER (0x0 << 0) + +#endif /* _LPC32XX_TIMER_H */ diff --git a/arch/arm/include/asm/arch-lpc32xx/uart.h b/arch/arm/include/asm/arch-lpc32xx/uart.h new file mode 100644 index 0000000..f20c66a --- /dev/null +++ b/arch/arm/include/asm/arch-lpc32xx/uart.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2011 by Vladimir Zapolskiy vz@mleia.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 + */ + +#ifndef _LPC32XX_UART_H +#define _LPC32XX_UART_H + +#include <asm/types.h> + +/* UART Control Registers */ +struct uart_ctrl_t { + u32 ctrl; /* Control Register */ + u32 clkmode; /* Clock Mode Register */ + u32 loop; /* Loopback Control Register */ +}; + +/* UART Control Register bits */ +#define UART_CTRL_UART3_MD_CTRL (1 << 11) +#define UART_CTRL_HDPX_INV (1 << 10) +#define UART_CTRL_HDPX_EN (1 << 9) +#define UART_CTRL_UART6_IRDA (1 << 5) +#define UART_CTRL_IR_TX6_INV (1 << 4) +#define UART_CTRL_IR_RX6_INV (1 << 3) +#define UART_CTRL_IR_RX_LENGTH (1 << 2) +#define UART_CTRL_IR_TX_LENGTH (1 << 1) +#define UART_CTRL_UART5_USB_MODE (1 << 0) + +/* UART Clock Mode Register bits */ +#define UART_CLKMODE_STATX(n) (1 << ((n) + 16)) +#define UART_CLKMODE_STAT (1 << 14) +#define UART_CLKMODE_MASK(n) (0x3 << (2 * (n) - 2)) +#define UART_CLKMODE_AUTO(n) (0x2 << (2 * (n) - 2)) +#define UART_CLKMODE_ON(n) (0x1 << (2 * (n) - 2)) +#define UART_CLKMODE_OFF(n) (0x0 << (2 * (n) - 2)) + +/* UART Loopback Control Register bits */ +#define UART_LOOPBACK(n) (1 << ((n) - 1)) + +#endif /* _LPC32XX_UART_H */ diff --git a/arch/arm/include/asm/arch-lpc32xx/wdt.h b/arch/arm/include/asm/arch-lpc32xx/wdt.h new file mode 100644 index 0000000..e869135 --- /dev/null +++ b/arch/arm/include/asm/arch-lpc32xx/wdt.h @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2011 by Vladimir Zapolskiy vz@mleia.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 + */ + +#ifndef _LPC32XX_WDT_H +#define _LPC32XX_WDT_H + +#include <asm/types.h> + +/* Watchdog Timer Registers */ +struct wdtim_t { + u32 isr; /* Interrupt Status Register */ + u32 ctrl; /* Control Register */ + u32 counter; /* Counter Value Register */ + u32 mctrl; /* Match Control Register */ + u32 match0; /* Match 0 Register */ + u32 emr; /* External Match Control Register */ + u32 pulse; /* Reset Pulse Length Register */ + u32 res; /* Reset Source Register */ +}; + +/* Watchdog Timer Control Register bits */ +#define WDTIM_CTRL_PAUSE_EN (1 << 2) +#define WDTIM_CTRL_RESET_COUNT (1 << 1) +#define WDTIM_CTRL_COUNT_ENAB (1 << 0) + +/* Watchdog Timer Match Control Register bits */ +#define WDTIM_MCTRL_RESFRC2 (1 << 6) +#define WDTIM_MCTRL_RESFRC1 (1 << 5) +#define WDTIM_MCTRL_M_RES2 (1 << 4) +#define WDTIM_MCTRL_M_RES1 (1 << 3) +#define WDTIM_MCTRL_STOP_COUNT0 (1 << 2) +#define WDTIM_MCTRL_RESET_COUNT0 (1 << 1) +#define WDTIM_MCTRL_MR0_INT (1 << 0) + +#endif /* _LPC32XX_WDT_H */