#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <asm/arch/hmatrix.h>
+#include <asm/arch/portmux.h>
#include <netdev.h>
DECLARE_GLOBAL_DATA_PTR;
/* Enable SDRAM in the EBI mux */
hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
- gpio_enable_ebi();
- gpio_enable_usart1();
+ portmux_enable_ebi(16, 23, 0, PORTMUX_DRIVE_HIGH);
+ portmux_enable_usart1(PORTMUX_DRIVE_MIN);
#if defined(CONFIG_MACB)
- gpio_enable_macb0();
- gpio_enable_macb1();
+ portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
+ portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
#endif
#if defined(CONFIG_MMC)
- gpio_enable_mmci();
+ portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
#endif
#if defined(CONFIG_ATMEL_SPI)
- gpio_enable_spi0(1 << 0);
+ portmux_enable_spi0(1 << 0, PORTMUX_DRIVE_LOW);
#endif
return 0;
return actual_size;
}
-void board_init_info(void)
+int board_early_init_r(void)
{
gd->bd->bi_phy_id[0] = 0x01;
gd->bd->bi_phy_id[1] = 0x03;
+ return 0;
}
#ifdef CONFIG_CMD_NET
#ifdef CONFIG_ATMEL_SPI
#include <spi.h>
-#define ATNGW100_DATAFLASH_CS_PIN GPIO_PIN_PA3
+#define ATNGW100_DATAFLASH_CS_PIN GPIO_PIN_PA(3)
int spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
include $(TOPDIR)/config.mk
-LIB := $(obj)lib$(BOARD).a
+LIB := $(obj)lib$(BOARD).a
-COBJS := $(BOARD).o flash.o
+COBJS-y += $(BOARD).o
+COBJS-y += flash.o
-SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
+SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
$(LIB): $(obj).depend $(OBJS)
$(AR) $(ARFLAGS) $@ $(OBJS)
#include <asm/io.h>
#include <asm/sdram.h>
#include <asm/arch/clk.h>
-#include <asm/arch/gpio.h>
#include <asm/arch/hmatrix.h>
+#include <asm/arch/portmux.h>
#include <netdev.h>
DECLARE_GLOBAL_DATA_PTR;
/* Enable SDRAM in the EBI mux */
hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
- gpio_enable_ebi();
- gpio_enable_usart1();
+ portmux_enable_ebi(sdram_config.data_bits, 23, 0, PORTMUX_DRIVE_HIGH);
+ portmux_enable_usart1(PORTMUX_DRIVE_MIN);
#if defined(CONFIG_MACB)
- gpio_enable_macb0();
- gpio_enable_macb1();
+ portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_LOW);
+ portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_LOW);
#endif
#if defined(CONFIG_MMC)
- gpio_enable_mmci();
+ portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
#endif
return 0;
return actual_size;
}
-void board_init_info(void)
+int board_early_init_r(void)
{
gd->bd->bi_phy_id[0] = 0x10;
gd->bd->bi_phy_id[1] = 0x11;
+ return 0;
}
#ifdef CONFIG_CMD_NET
#include <asm/io.h>
#include <asm/sdram.h>
#include <asm/arch/clk.h>
-#include <asm/arch/gpio.h>
#include <asm/arch/hmatrix.h>
+#include <asm/arch/portmux.h>
DECLARE_GLOBAL_DATA_PTR;
/* Enable SDRAM in the EBI mux */
hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
- gpio_enable_ebi();
- gpio_enable_usart3();
+ portmux_enable_ebi(32, 23, 0, PORTMUX_DRIVE_HIGH);
+ portmux_enable_usart3(PORTMUX_DRIVE_MIN);
#if defined(CONFIG_MACB)
- gpio_enable_macb0();
+ portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
#endif
#if defined(CONFIG_MMC)
- gpio_enable_mmci();
+ portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
#endif
return 0;
return actual_size;
}
-void board_init_info(void)
+int board_early_init_r(void)
{
gd->bd->bi_phy_id[0] = 0x01;
+ return 0;
}
#if defined(CONFIG_MACB) && defined(CONFIG_CMD_NET)
#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <asm/arch/hmatrix.h>
+#include <asm/arch/portmux.h>
#include <lcd.h>
#define SM_PM_GCCTRL 0x0060
/* Enable SDRAM in the EBI mux */
hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
- gpio_enable_ebi();
- gpio_enable_usart1();
-
- /* enable higher address lines for larger flash devices */
- gpio_select_periph_A(GPIO_PIN_PE16, 0); /* ADDR23 */
- gpio_select_periph_A(GPIO_PIN_PE17, 0); /* ADDR24 */
- gpio_select_periph_A(GPIO_PIN_PE18, 0); /* ADDR25 */
-
- /* enable data flash chip select */
- gpio_select_periph_A(GPIO_PIN_PE25, 0); /* NCS2 */
+ /* Enable 26 address bits and NCS2 */
+ portmux_enable_ebi(16, 26, PORTMUX_EBI_CS(2), PORTMUX_DRIVE_HIGH);
+ portmux_enable_usart1(PORTMUX_DRIVE_MIN);
/* de-assert "force sys reset" pin */
- gpio_set_value(GPIO_PIN_PD15, 1); /* FORCE RESET */
- gpio_select_pio(GPIO_PIN_PD15, GPIOF_OUTPUT);
+ portmux_select_gpio(PORTMUX_PORT_D, 1 << 15,
+ PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
/* init custom i/o */
/* cpu type inputs */
- gpio_select_pio(GPIO_PIN_PE19, 0);
- gpio_select_pio(GPIO_PIN_PE20, 0);
- gpio_select_pio(GPIO_PIN_PE23, 0);
+ portmux_select_gpio(PORTMUX_PORT_E, (1 << 19) | (1 << 20) | (1 << 23),
+ PORTMUX_DIR_INPUT);
/* main board type inputs */
- gpio_select_pio(GPIO_PIN_PB19, 0);
- gpio_select_pio(GPIO_PIN_PB29, 0);
+ portmux_select_gpio(PORTMUX_PORT_B, (1 << 19) | (1 << 29),
+ PORTMUX_DIR_INPUT);
/* DEBUG input (use weak pullup) */
- gpio_select_pio(GPIO_PIN_PE21, GPIOF_PULLUP);
+ portmux_select_gpio(PORTMUX_PORT_E, 1 << 21,
+ PORTMUX_DIR_INPUT | PORTMUX_PULL_UP);
/* are we suppressing the console ? */
- if (gpio_get_value(GPIO_PIN_PE21) == 1)
+ if (gpio_get_value(GPIO_PIN_PE(21)) == 1)
gd->flags |= GD_FLG_SILENT;
/* reset phys */
- gpio_select_pio(GPIO_PIN_PE24, 0);
- gpio_set_value(GPIO_PIN_PC18, 1); /* PHY RESET */
- gpio_select_pio(GPIO_PIN_PC18, GPIOF_OUTPUT);
+ portmux_select_gpio(PORTMUX_PORT_E, 1 << 24, PORTMUX_DIR_INPUT);
+ portmux_select_gpio(PORTMUX_PORT_C, 1 << 18,
+ PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
/* GCLK0 - 10MHz clock */
writel(0x00000004, (void *)SM_BASE + SM_PM_GCCTRL);
- gpio_select_periph_A(GPIO_PIN_PA30, 0);
+ portmux_select_peripheral(PORTMUX_PORT_A, 1 << 30, PORTMUX_FUNC_A, 0);
udelay(5000);
/* release phys reset */
- gpio_set_value(GPIO_PIN_PC18, 0); /* PHY RESET (Release) */
+ gpio_set_value(GPIO_PIN_PC(18), 0); /* PHY RESET (Release) */
#if defined(CONFIG_MACB)
/* init macb0 pins */
- gpio_select_periph_A(GPIO_PIN_PC3, 0); /* TXD0 */
- gpio_select_periph_A(GPIO_PIN_PC4, 0); /* TXD1 */
- gpio_select_periph_A(GPIO_PIN_PC7, 0); /* TXEN */
- gpio_select_periph_A(GPIO_PIN_PC8, 0); /* TXCK */
- gpio_select_periph_A(GPIO_PIN_PC9, 0); /* RXD0 */
- gpio_select_periph_A(GPIO_PIN_PC10, 0); /* RXD1 */
- gpio_select_periph_A(GPIO_PIN_PC13, 0); /* RXER */
- gpio_select_periph_A(GPIO_PIN_PC15, 0); /* RXDV */
- gpio_select_periph_A(GPIO_PIN_PC16, 0); /* MDC */
- gpio_select_periph_A(GPIO_PIN_PC17, 0); /* MDIO */
-#if !defined(CONFIG_RMII)
- gpio_select_periph_A(GPIO_PIN_PC0, 0); /* COL */
- gpio_select_periph_A(GPIO_PIN_PC1, 0); /* CRS */
- gpio_select_periph_A(GPIO_PIN_PC2, 0); /* TXER */
- gpio_select_periph_A(GPIO_PIN_PC5, 0); /* TXD2 */
- gpio_select_periph_A(GPIO_PIN_PC6, 0); /* TXD3 */
- gpio_select_periph_A(GPIO_PIN_PC11, 0); /* RXD2 */
- gpio_select_periph_A(GPIO_PIN_PC12, 0); /* RXD3 */
- gpio_select_periph_A(GPIO_PIN_PC14, 0); /* RXCK */
-#endif
-
- /* init macb1 pins */
- gpio_select_periph_B(GPIO_PIN_PD13, 0); /* TXD0 */
- gpio_select_periph_B(GPIO_PIN_PD14, 0); /* TXD1 */
- gpio_select_periph_B(GPIO_PIN_PD11, 0); /* TXEN */
- gpio_select_periph_B(GPIO_PIN_PD12, 0); /* TXCK */
- gpio_select_periph_B(GPIO_PIN_PD10, 0); /* RXD0 */
- gpio_select_periph_B(GPIO_PIN_PD6, 0); /* RXD1 */
- gpio_select_periph_B(GPIO_PIN_PD5, 0); /* RXER */
- gpio_select_periph_B(GPIO_PIN_PD4, 0); /* RXDV */
- gpio_select_periph_B(GPIO_PIN_PD3, 0); /* MDC */
- gpio_select_periph_B(GPIO_PIN_PD2, 0); /* MDIO */
-#if !defined(CONFIG_RMII)
- gpio_select_periph_B(GPIO_PIN_PC19, 0); /* COL */
- gpio_select_periph_B(GPIO_PIN_PC23, 0); /* CRS */
- gpio_select_periph_B(GPIO_PIN_PC26, 0); /* TXER */
- gpio_select_periph_B(GPIO_PIN_PC27, 0); /* TXD2 */
- gpio_select_periph_B(GPIO_PIN_PC28, 0); /* TXD3 */
- gpio_select_periph_B(GPIO_PIN_PC29, 0); /* RXD2 */
- gpio_select_periph_B(GPIO_PIN_PC30, 0); /* RXD3 */
- gpio_select_periph_B(GPIO_PIN_PC24, 0); /* RXCK */
-#endif
+ portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
+ portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
#endif
#if defined(CONFIG_MMC)
- gpio_enable_mmci();
+ portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
#endif
return 0;
return actual_size;
}
-void board_init_info(void)
+int board_early_init_r(void)
{
gd->bd->bi_phy_id[0] = 0x01;
gd->bd->bi_phy_id[1] = 0x03;
+ return 0;
}
/* SPI chip select control */
* MA 02111-1307 USA
*/
-#include "../cpu/at32ap/at32ap700x/sm.h"
-
#include <common.h>
#include <netdev.h>
#include <asm/io.h>
#include <asm/sdram.h>
#include <asm/arch/clk.h>
-#include <asm/arch/gpio.h>
#include <asm/arch/hmatrix.h>
#include <asm/arch/memory-map.h>
+#include <asm/arch/portmux.h>
DECLARE_GLOBAL_DATA_PTR;
/* Enable SDRAM in the EBI mux */
hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
- gpio_enable_ebi();
- gpio_enable_usart1();
+ portmux_enable_ebi(32, 23, 0, PORTMUX_DRIVE_HIGH);
+ portmux_enable_usart1(PORTMUX_DRIVE_MIN);
#if defined(CONFIG_MACB)
- gpio_enable_macb0();
+ portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
#endif
#if defined(CONFIG_MMC)
- gpio_enable_mmci();
+ portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
#endif
return 0;
}
return actual_size;
}
-void board_init_info(void)
+int board_early_init_r(void)
{
gd->bd->bi_phy_id[0] = 0x01;
+ return 0;
}
-void gclk_init(void)
+int board_postclk_init(void)
{
/* Hammerhead boards uses GCLK3 as 25MHz output to ethernet PHY */
-
- /* Select GCLK3 peripheral function */
- gpio_select_periph_A(GPIO_PIN_PB29, 0);
-
- /* Enable GCLK3 with no input divider, from OSC0 (crystal) */
- sm_writel(PM_GCCTRL(3), SM_BIT(CEN));
+ gclk_enable_output(3, PORTMUX_DRIVE_LOW);
+ gclk_set_rate(3, GCLK_PARENT_OSC0, 25000000);
+ return 0;
}
COBJS-y += exception.o
COBJS-y += cache.o
COBJS-y += interrupts.o
-COBJS-y += pio.o
+COBJS-$(CONFIG_PORTMUX_PIO) += portmux-pio.o
+COBJS-$(CONFIG_PORTMUX_GPIO) += portmux-gpio.o
SRCS := $(START-y:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
LIB := $(obj)lib$(SOC).a
-COBJS := gpio.o clk.o
+COBJS := portmux.o clk.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
#include <asm/arch/clk.h>
#include <asm/arch/memory-map.h>
+#include <asm/arch/portmux.h>
#include "sm.h"
sm_writel(PM_MCCTRL, SM_BIT(PLLSEL));
#endif
}
+
+unsigned long __gclk_set_rate(unsigned int id, enum gclk_parent parent,
+ unsigned long rate, unsigned long parent_rate)
+{
+ unsigned long divider;
+
+ if (rate == 0 || parent_rate == 0) {
+ sm_writel(PM_GCCTRL(id), 0);
+ return 0;
+ }
+
+ divider = (parent_rate + rate / 2) / rate;
+ if (divider <= 1) {
+ sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN));
+ rate = parent_rate;
+ } else {
+ divider = min(255, divider / 2 - 1);
+ sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN) | SM_BIT(DIVEN)
+ | SM_BF(DIV, divider));
+ rate = parent_rate / (2 * (divider + 1));
+ }
+
+ return rate;
+}
+++ /dev/null
-/*
- * Copyright (C) 2006 Atmel Corporation
- *
- * 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 <asm/io.h>
-
-#include <asm/arch/chip-features.h>
-#include <asm/arch/gpio.h>
-#include <asm/arch/memory-map.h>
-
-/*
- * Lots of small functions here. We depend on --gc-sections getting
- * rid of the ones we don't need.
- */
-void gpio_enable_ebi(void)
-{
-#ifdef CONFIG_SYS_HSDRAMC
-#ifndef CONFIG_SYS_SDRAM_16BIT
- gpio_select_periph_A(GPIO_PIN_PE0, 0);
- gpio_select_periph_A(GPIO_PIN_PE1, 0);
- gpio_select_periph_A(GPIO_PIN_PE2, 0);
- gpio_select_periph_A(GPIO_PIN_PE3, 0);
- gpio_select_periph_A(GPIO_PIN_PE4, 0);
- gpio_select_periph_A(GPIO_PIN_PE5, 0);
- gpio_select_periph_A(GPIO_PIN_PE6, 0);
- gpio_select_periph_A(GPIO_PIN_PE7, 0);
- gpio_select_periph_A(GPIO_PIN_PE8, 0);
- gpio_select_periph_A(GPIO_PIN_PE9, 0);
- gpio_select_periph_A(GPIO_PIN_PE10, 0);
- gpio_select_periph_A(GPIO_PIN_PE11, 0);
- gpio_select_periph_A(GPIO_PIN_PE12, 0);
- gpio_select_periph_A(GPIO_PIN_PE13, 0);
- gpio_select_periph_A(GPIO_PIN_PE14, 0);
- gpio_select_periph_A(GPIO_PIN_PE15, 0);
-#endif
- gpio_select_periph_A(GPIO_PIN_PE26, 0);
-#endif
-}
-
-#ifdef AT32AP700x_CHIP_HAS_USART
-void gpio_enable_usart0(void)
-{
- gpio_select_periph_B(GPIO_PIN_PA8, 0);
- gpio_select_periph_B(GPIO_PIN_PA9, 0);
-}
-
-void gpio_enable_usart1(void)
-{
- gpio_select_periph_A(GPIO_PIN_PA17, 0);
- gpio_select_periph_A(GPIO_PIN_PA18, 0);
-}
-
-void gpio_enable_usart2(void)
-{
- gpio_select_periph_B(GPIO_PIN_PB26, 0);
- gpio_select_periph_B(GPIO_PIN_PB27, 0);
-}
-
-void gpio_enable_usart3(void)
-{
- gpio_select_periph_B(GPIO_PIN_PB17, 0);
- gpio_select_periph_B(GPIO_PIN_PB18, 0);
-}
-#endif
-
-#ifdef AT32AP700x_CHIP_HAS_MACB
-void gpio_enable_macb0(void)
-{
- gpio_select_periph_A(GPIO_PIN_PC3, 0); /* TXD0 */
- gpio_select_periph_A(GPIO_PIN_PC4, 0); /* TXD1 */
- gpio_select_periph_A(GPIO_PIN_PC7, 0); /* TXEN */
- gpio_select_periph_A(GPIO_PIN_PC8, 0); /* TXCK */
- gpio_select_periph_A(GPIO_PIN_PC9, 0); /* RXD0 */
- gpio_select_periph_A(GPIO_PIN_PC10, 0); /* RXD1 */
- gpio_select_periph_A(GPIO_PIN_PC13, 0); /* RXER */
- gpio_select_periph_A(GPIO_PIN_PC15, 0); /* RXDV */
- gpio_select_periph_A(GPIO_PIN_PC16, 0); /* MDC */
- gpio_select_periph_A(GPIO_PIN_PC17, 0); /* MDIO */
-#if !defined(CONFIG_RMII)
- gpio_select_periph_A(GPIO_PIN_PC0, 0); /* COL */
- gpio_select_periph_A(GPIO_PIN_PC1, 0); /* CRS */
- gpio_select_periph_A(GPIO_PIN_PC2, 0); /* TXER */
- gpio_select_periph_A(GPIO_PIN_PC5, 0); /* TXD2 */
- gpio_select_periph_A(GPIO_PIN_PC6, 0); /* TXD3 */
- gpio_select_periph_A(GPIO_PIN_PC11, 0); /* RXD2 */
- gpio_select_periph_A(GPIO_PIN_PC12, 0); /* RXD3 */
- gpio_select_periph_A(GPIO_PIN_PC14, 0); /* RXCK */
- gpio_select_periph_A(GPIO_PIN_PC18, 0); /* SPD */
-#endif
-}
-
-void gpio_enable_macb1(void)
-{
- gpio_select_periph_B(GPIO_PIN_PD13, 0); /* TXD0 */
- gpio_select_periph_B(GPIO_PIN_PD14, 0); /* TXD1 */
- gpio_select_periph_B(GPIO_PIN_PD11, 0); /* TXEN */
- gpio_select_periph_B(GPIO_PIN_PD12, 0); /* TXCK */
- gpio_select_periph_B(GPIO_PIN_PD10, 0); /* RXD0 */
- gpio_select_periph_B(GPIO_PIN_PD6, 0); /* RXD1 */
- gpio_select_periph_B(GPIO_PIN_PD5, 0); /* RXER */
- gpio_select_periph_B(GPIO_PIN_PD4, 0); /* RXDV */
- gpio_select_periph_B(GPIO_PIN_PD3, 0); /* MDC */
- gpio_select_periph_B(GPIO_PIN_PD2, 0); /* MDIO */
-#if !defined(CONFIG_RMII)
- gpio_select_periph_B(GPIO_PIN_PC19, 0); /* COL */
- gpio_select_periph_B(GPIO_PIN_PC23, 0); /* CRS */
- gpio_select_periph_B(GPIO_PIN_PC26, 0); /* TXER */
- gpio_select_periph_B(GPIO_PIN_PC27, 0); /* TXD2 */
- gpio_select_periph_B(GPIO_PIN_PC28, 0); /* TXD3 */
- gpio_select_periph_B(GPIO_PIN_PC29, 0); /* RXD2 */
- gpio_select_periph_B(GPIO_PIN_PC30, 0); /* RXD3 */
- gpio_select_periph_B(GPIO_PIN_PC24, 0); /* RXCK */
- gpio_select_periph_B(GPIO_PIN_PD15, 0); /* SPD */
-#endif
-}
-#endif
-
-#ifdef AT32AP700x_CHIP_HAS_MMCI
-void gpio_enable_mmci(void)
-{
- gpio_select_periph_A(GPIO_PIN_PA10, 0); /* CLK */
- gpio_select_periph_A(GPIO_PIN_PA11, 0); /* CMD */
- gpio_select_periph_A(GPIO_PIN_PA12, 0); /* DATA0 */
- gpio_select_periph_A(GPIO_PIN_PA13, 0); /* DATA1 */
- gpio_select_periph_A(GPIO_PIN_PA14, 0); /* DATA2 */
- gpio_select_periph_A(GPIO_PIN_PA15, 0); /* DATA3 */
-}
-#endif
-
-#ifdef AT32AP700x_CHIP_HAS_SPI
-void gpio_enable_spi0(unsigned long cs_mask)
-{
- gpio_select_periph_A(GPIO_PIN_PA0, 0); /* MISO */
- gpio_select_periph_A(GPIO_PIN_PA1, 0); /* MOSI */
- gpio_select_periph_A(GPIO_PIN_PA2, 0); /* SCK */
-
- /* Set up NPCSx as GPIO outputs, initially high */
- if (cs_mask & (1 << 0)) {
- gpio_set_value(GPIO_PIN_PA3, 1);
- gpio_select_pio(GPIO_PIN_PA3, GPIOF_OUTPUT);
- }
- if (cs_mask & (1 << 1)) {
- gpio_set_value(GPIO_PIN_PA4, 1);
- gpio_select_pio(GPIO_PIN_PA4, GPIOF_OUTPUT);
- }
- if (cs_mask & (1 << 2)) {
- gpio_set_value(GPIO_PIN_PA5, 1);
- gpio_select_pio(GPIO_PIN_PA5, GPIOF_OUTPUT);
- }
- if (cs_mask & (1 << 3)) {
- gpio_set_value(GPIO_PIN_PA20, 1);
- gpio_select_pio(GPIO_PIN_PA20, GPIOF_OUTPUT);
- }
-}
-
-void gpio_enable_spi1(unsigned long cs_mask)
-{
- gpio_select_periph_B(GPIO_PIN_PA0, 0); /* MISO */
- gpio_select_periph_B(GPIO_PIN_PB1, 0); /* MOSI */
- gpio_select_periph_B(GPIO_PIN_PB5, 0); /* SCK */
-
- /* Set up NPCSx as GPIO outputs, initially high */
- if (cs_mask & (1 << 0)) {
- gpio_set_value(GPIO_PIN_PB2, 1);
- gpio_select_pio(GPIO_PIN_PB2, GPIOF_OUTPUT);
- }
- if (cs_mask & (1 << 1)) {
- gpio_set_value(GPIO_PIN_PB3, 1);
- gpio_select_pio(GPIO_PIN_PB3, GPIOF_OUTPUT);
- }
- if (cs_mask & (1 << 2)) {
- gpio_set_value(GPIO_PIN_PB4, 1);
- gpio_select_pio(GPIO_PIN_PB4, GPIOF_OUTPUT);
- }
- if (cs_mask & (1 << 3)) {
- gpio_set_value(GPIO_PIN_PA27, 1);
- gpio_select_pio(GPIO_PIN_PA27, GPIOF_OUTPUT);
- }
-}
-#endif
--- /dev/null
+/*
+ * Copyright (C) 2006, 2008 Atmel Corporation
+ *
+ * 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 <asm/io.h>
+
+#include <asm/arch/chip-features.h>
+#include <asm/arch/memory-map.h>
+#include <asm/arch/portmux.h>
+
+/*
+ * Lots of small functions here. We depend on --gc-sections getting
+ * rid of the ones we don't need.
+ */
+void portmux_enable_ebi(unsigned int bus_width, unsigned int addr_width,
+ unsigned long flags, unsigned long drive_strength)
+{
+ unsigned long porte_mask = 0;
+
+ if (bus_width > 16)
+ portmux_select_peripheral(PORTMUX_PORT_E, 0xffff,
+ PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+ if (addr_width > 23)
+ porte_mask |= (((1 << (addr_width - 23)) - 1) & 7) << 16;
+ if (flags & PORTMUX_EBI_CS(2))
+ porte_mask |= 1 << 25;
+ if (flags & PORTMUX_EBI_CS(4))
+ porte_mask |= 1 << 21;
+ if (flags & PORTMUX_EBI_CS(5))
+ porte_mask |= 1 << 22;
+ if (flags & (PORTMUX_EBI_CF(0) | PORTMUX_EBI_CF(1)))
+ porte_mask |= (1 << 19) | (1 << 20) | (1 << 23);
+
+ portmux_select_peripheral(PORTMUX_PORT_E, porte_mask,
+ PORTMUX_FUNC_A, 0);
+
+ if (flags & PORTMUX_EBI_NWAIT)
+ portmux_select_peripheral(PORTMUX_PORT_E, 1 << 24,
+ PORTMUX_FUNC_A, PORTMUX_PULL_UP);
+}
+
+#ifdef AT32AP700x_CHIP_HAS_MACB
+void portmux_enable_macb0(unsigned long flags, unsigned long drive_strength)
+{
+ unsigned long portc_mask;
+
+ portc_mask = (1 << 3) /* TXD0 */
+ | (1 << 4) /* TXD1 */
+ | (1 << 7) /* TXEN */
+ | (1 << 8) /* TXCK */
+ | (1 << 9) /* RXD0 */
+ | (1 << 10) /* RXD1 */
+ | (1 << 13) /* RXER */
+ | (1 << 15) /* RXDV */
+ | (1 << 16) /* MDC */
+ | (1 << 17); /* MDIO */
+
+ if (flags & PORTMUX_MACB_MII)
+ portc_mask |= (1 << 0) /* COL */
+ | (1 << 1) /* CRS */
+ | (1 << 2) /* TXER */
+ | (1 << 5) /* TXD2 */
+ | (1 << 6) /* TXD3 */
+ | (1 << 11) /* RXD2 */
+ | (1 << 12) /* RXD3 */
+ | (1 << 14); /* RXCK */
+
+ if (flags & PORTMUX_MACB_SPEED)
+ portc_mask |= (1 << 18);/* SPD */
+
+ /* REVISIT: Some pins are probably pure outputs */
+ portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
+ PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+}
+
+void portmux_enable_macb1(unsigned long flags, unsigned long drive_strength)
+{
+ unsigned long portc_mask = 0;
+ unsigned long portd_mask;
+
+ portd_mask = (1 << 13) /* TXD0 */
+ | (1 << 14) /* TXD1 */
+ | (1 << 11) /* TXEN */
+ | (1 << 12) /* TXCK */
+ | (1 << 10) /* RXD0 */
+ | (1 << 6) /* RXD1 */
+ | (1 << 5) /* RXER */
+ | (1 << 4) /* RXDV */
+ | (1 << 3) /* MDC */
+ | (1 << 2); /* MDIO */
+
+ if (flags & PORTMUX_MACB_MII)
+ portc_mask = (1 << 19) /* COL */
+ | (1 << 23) /* CRS */
+ | (1 << 26) /* TXER */
+ | (1 << 27) /* TXD2 */
+ | (1 << 28) /* TXD3 */
+ | (1 << 29) /* RXD2 */
+ | (1 << 30) /* RXD3 */
+ | (1 << 24); /* RXCK */
+
+ if (flags & PORTMUX_MACB_SPEED)
+ portd_mask |= (1 << 15);/* SPD */
+
+ /* REVISIT: Some pins are probably pure outputs */
+ portmux_select_peripheral(PORTMUX_PORT_D, portc_mask,
+ PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+ portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
+ PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+}
+#endif
+
+#ifdef AT32AP700x_CHIP_HAS_MMCI
+void portmux_enable_mmci(unsigned int slot, unsigned long flags,
+ unsigned long drive_strength)
+{
+ unsigned long mask;
+ unsigned long portmux_flags = PORTMUX_PULL_UP;
+
+ /* First, the common CLK signal. It doesn't need a pull-up */
+ portmux_select_peripheral(PORTMUX_PORT_A, 1 << 10,
+ PORTMUX_FUNC_A, 0);
+
+ if (flags & PORTMUX_MMCI_EXT_PULLUP)
+ portmux_flags = 0;
+
+ /* Then, the per-slot signals */
+ switch (slot) {
+ case 0:
+ mask = (1 << 11) | (1 << 12); /* CMD and DATA0 */
+ if (flags & PORTMUX_MMCI_4BIT)
+ /* DATA1..DATA3 */
+ mask |= (1 << 13) | (1 << 14) | (1 << 15);
+ portmux_select_peripheral(PORTMUX_PORT_A, mask,
+ PORTMUX_FUNC_A, portmux_flags);
+ break;
+ case 1:
+ mask = (1 << 6) | (1 << 7); /* CMD and DATA0 */
+ if (flags & PORTMUX_MMCI_4BIT)
+ /* DATA1..DATA3 */
+ mask |= (1 << 8) | (1 << 9) | (1 << 10);
+ portmux_select_peripheral(PORTMUX_PORT_B, mask,
+ PORTMUX_FUNC_B, portmux_flags);
+ break;
+ }
+}
+#endif
+
+#ifdef AT32AP700x_CHIP_HAS_SPI
+void portmux_enable_spi0(unsigned long cs_mask, unsigned long drive_strength)
+{
+ unsigned long pin_mask;
+
+ /* MOSI and SCK */
+ portmux_select_peripheral(PORTMUX_PORT_A, (1 << 1) | (1 << 2),
+ PORTMUX_FUNC_A, 0);
+ /* MISO may float */
+ portmux_select_peripheral(PORTMUX_PORT_A, 1 << 0,
+ PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+
+ /* Set up NPCSx as GPIO outputs, initially high */
+ pin_mask = (cs_mask & 7) << 3;
+ if (cs_mask & (1 << 3))
+ pin_mask |= 1 << 20;
+
+ portmux_select_gpio(PORTMUX_PORT_A, pin_mask,
+ PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
+}
+
+void portmux_enable_spi1(unsigned long cs_mask, unsigned long drive_strength)
+{
+ /* MOSI and SCK */
+ portmux_select_peripheral(PORTMUX_PORT_B, (1 << 1) | (1 << 5),
+ PORTMUX_FUNC_B, 0);
+ /* MISO may float */
+ portmux_select_peripheral(PORTMUX_PORT_B, 1 << 0,
+ PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+
+ /* Set up NPCSx as GPIO outputs, initially high */
+ portmux_select_gpio(PORTMUX_PORT_B, (cs_mask & 7) << 2,
+ PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
+ portmux_select_gpio(PORTMUX_PORT_A, (cs_mask & 8) << (27 - 3),
+ PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
+}
+#endif
sysreg_write(EVBA, (unsigned long)&_evba);
asm volatile("csrf %0" : : "i"(SYSREG_EM_OFFSET));
- if(gclk_init)
- gclk_init();
-
return 0;
}
+++ /dev/null
-/*
- * Copyright (C) 2006 Atmel Corporation
- *
- * 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 <asm/io.h>
-#include <asm/arch/gpio.h>
-#include <asm/arch/memory-map.h>
-
-#include "pio2.h"
-
-void gpio_select_periph_A(unsigned int pin, int use_pullup)
-{
- void *base = gpio_pin_to_addr(pin);
- uint32_t mask = 1 << (pin & 0x1f);
-
- if (!base)
- panic("Invalid GPIO pin %u\n", pin);
-
- pio2_writel(base, ASR, mask);
- pio2_writel(base, PDR, mask);
- if (use_pullup)
- pio2_writel(base, PUER, mask);
- else
- pio2_writel(base, PUDR, mask);
-}
-
-void gpio_select_periph_B(unsigned int pin, int use_pullup)
-{
- void *base = gpio_pin_to_addr(pin);
- uint32_t mask = 1 << (pin & 0x1f);
-
- if (!base)
- panic("Invalid GPIO pin %u\n", pin);
-
- pio2_writel(base, BSR, mask);
- pio2_writel(base, PDR, mask);
- if (use_pullup)
- pio2_writel(base, PUER, mask);
- else
- pio2_writel(base, PUDR, mask);
-}
-
-void gpio_select_pio(unsigned int pin, unsigned long gpiof_flags)
-{
- void *base = gpio_pin_to_addr(pin);
- uint32_t mask = 1 << (pin & 0x1f);
-
- if (!base)
- panic("Invalid GPIO pin %u\n", pin);
-
- if (gpiof_flags & GPIOF_OUTPUT) {
- if (gpiof_flags & GPIOF_MULTIDRV)
- pio2_writel(base, MDER, mask);
- else
- pio2_writel(base, MDDR, mask);
- pio2_writel(base, PUDR, mask);
- pio2_writel(base, OER, mask);
- } else {
- if (gpiof_flags & GPIOF_PULLUP)
- pio2_writel(base, PUER, mask);
- else
- pio2_writel(base, PUDR, mask);
- if (gpiof_flags & GPIOF_DEGLITCH)
- pio2_writel(base, IFER, mask);
- else
- pio2_writel(base, IFDR, mask);
- pio2_writel(base, ODR, mask);
- }
-
- pio2_writel(base, PER, mask);
-}
-
-void gpio_set_value(unsigned int pin, int value)
-{
- void *base = gpio_pin_to_addr(pin);
- uint32_t mask = 1 << (pin & 0x1f);
-
- if (!base)
- panic("Invalid GPIO pin %u\n", pin);
-
- if (value)
- pio2_writel(base, SODR, mask);
- else
- pio2_writel(base, CODR, mask);
-}
-
-int gpio_get_value(unsigned int pin)
-{
- void *base = gpio_pin_to_addr(pin);
- int value;
-
- if (!base)
- panic("Invalid GPIO pin %u\n", pin);
-
- value = pio2_readl(base, PDSR);
- return (value >> (pin & 0x1f)) & 1;
-}
--- /dev/null
+/*
+ * Copyright (C) 2008 Atmel Corporation
+ *
+ * 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 <asm/io.h>
+#include <asm/arch/memory-map.h>
+#include <asm/arch/gpio.h>
+
+void portmux_select_peripheral(void *port, unsigned long pin_mask,
+ enum portmux_function func, unsigned long flags)
+{
+ /* Both pull-up and pull-down set means buskeeper */
+ if (flags & PORTMUX_PULL_DOWN)
+ gpio_writel(port, PDERS, pin_mask);
+ else
+ gpio_writel(port, PDERC, pin_mask);
+ if (flags & PORTMUX_PULL_UP)
+ gpio_writel(port, PUERS, pin_mask);
+ else
+ gpio_writel(port, PUERC, pin_mask);
+
+ /* Select drive strength */
+ if (flags & PORTMUX_DRIVE_LOW)
+ gpio_writel(port, ODCR0S, pin_mask);
+ else
+ gpio_writel(port, ODCR0C, pin_mask);
+ if (flags & PORTMUX_DRIVE_HIGH)
+ gpio_writel(port, ODCR1S, pin_mask);
+ else
+ gpio_writel(port, ODCR1C, pin_mask);
+
+ /* Select function */
+ if (func & PORTMUX_FUNC_B)
+ gpio_writel(port, PMR0S, pin_mask);
+ else
+ gpio_writel(port, PMR0C, pin_mask);
+ if (func & PORTMUX_FUNC_C)
+ gpio_writel(port, PMR1S, pin_mask);
+ else
+ gpio_writel(port, PMR1C, pin_mask);
+
+ /* Disable GPIO (i.e. enable peripheral) */
+ gpio_writel(port, GPERC, pin_mask);
+}
+
+void portmux_select_gpio(void *port, unsigned long pin_mask,
+ unsigned long flags)
+{
+ /* Both pull-up and pull-down set means buskeeper */
+ if (flags & PORTMUX_PULL_DOWN)
+ gpio_writel(port, PDERS, pin_mask);
+ else
+ gpio_writel(port, PDERC, pin_mask);
+ if (flags & PORTMUX_PULL_UP)
+ gpio_writel(port, PUERS, pin_mask);
+ else
+ gpio_writel(port, PUERC, pin_mask);
+
+ /* Enable open-drain mode if requested */
+ if (flags & PORTMUX_OPEN_DRAIN)
+ gpio_writel(port, ODMERS, pin_mask);
+ else
+ gpio_writel(port, ODMERC, pin_mask);
+
+ /* Select drive strength */
+ if (flags & PORTMUX_DRIVE_LOW)
+ gpio_writel(port, ODCR0S, pin_mask);
+ else
+ gpio_writel(port, ODCR0C, pin_mask);
+ if (flags & PORTMUX_DRIVE_HIGH)
+ gpio_writel(port, ODCR1S, pin_mask);
+ else
+ gpio_writel(port, ODCR1C, pin_mask);
+
+ /* Select direction and initial pin state */
+ if (flags & PORTMUX_DIR_OUTPUT) {
+ if (flags & PORTMUX_INIT_HIGH)
+ gpio_writel(port, OVRS, pin_mask);
+ else
+ gpio_writel(port, OVRC, pin_mask);
+ gpio_writel(port, ODERS, pin_mask);
+ } else {
+ gpio_writel(port, ODERC, pin_mask);
+ }
+
+ /* Enable GPIO */
+ gpio_writel(port, GPERS, pin_mask);
+}
--- /dev/null
+/*
+ * Copyright (C) 2006, 2008 Atmel Corporation
+ *
+ * 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 <asm/io.h>
+#include <asm/arch/memory-map.h>
+#include <asm/arch/gpio.h>
+
+void portmux_select_peripheral(void *port, unsigned long pin_mask,
+ enum portmux_function func, unsigned long flags)
+{
+ if (flags & PORTMUX_PULL_UP)
+ pio_writel(port, PUER, pin_mask);
+ else
+ pio_writel(port, PUDR, pin_mask);
+
+ switch (func) {
+ case PORTMUX_FUNC_A:
+ pio_writel(port, ASR, pin_mask);
+ break;
+ case PORTMUX_FUNC_B:
+ pio_writel(port, BSR, pin_mask);
+ break;
+ }
+
+ pio_writel(port, PDR, pin_mask);
+}
+
+void portmux_select_gpio(void *port, unsigned long pin_mask,
+ unsigned long flags)
+{
+ if (flags & PORTMUX_PULL_UP)
+ pio_writel(port, PUER, pin_mask);
+ else
+ pio_writel(port, PUDR, pin_mask);
+
+ if (flags & PORTMUX_OPEN_DRAIN)
+ pio_writel(port, MDER, pin_mask);
+ else
+ pio_writel(port, MDDR, pin_mask);
+
+ if (flags & PORTMUX_DIR_OUTPUT) {
+ if (flags & PORTMUX_INIT_HIGH)
+ pio_writel(port, SODR, pin_mask);
+ else
+ pio_writel(port, CODR, pin_mask);
+ pio_writel(port, OER, pin_mask);
+ } else {
+ pio_writel(port, ODR, pin_mask);
+ }
+
+ pio_writel(port, PER, pin_mask);
+}
+
+void pio_set_output_value(unsigned int pin, int value)
+{
+ void *port = pio_pin_to_port(pin);
+
+ if (!port)
+ panic("Invalid GPIO pin %u\n", pin);
+
+ __pio_set_output_value(port, pin & 0x1f, value);
+}
+
+int pio_get_input_value(unsigned int pin)
+{
+ void *port = pio_pin_to_port(pin);
+
+ if (!port)
+ panic("Invalid GPIO pin %u\n", pin);
+
+ return __pio_get_input_value(port, pin & 0x1f);
+}
-From: Haavard Skinnemoen <hskinnemoen@atmel.com>
-Date: Wed, 30 Aug 2006 17:01:46 +0200
-Subject: [PATCH] AVR32 architecture support
-
-This patch adds common infrastructure code for the Atmel AVR32
-architecture.
-
AVR32 is a new high-performance 32-bit RISC microprocessor core,
designed for cost-sensitive embedded applications, with particular
emphasis on low power consumption and high code density. The AVR32
http://www.atmel.com/dyn/resources/prod_documents/doc32000.pdf
-A GNU toolchain with support for AVR32 is included with the ATSTK1000
-BSP, which can be downloaded as an ISO image from
+A GNU toolchain with support for AVR32, along with non-GNU programming
+and debugging support, can be downloaded from
-http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3918
+http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4118
-Alternatively, you can build it yourself by following the
-Getting Started guide at avr32linux.org, which also provides links
-to the necessary sources and patches you need to download:
+A full set of u-boot, kernel and filesystem images can be built using
+buildroot. This will also produce a working toolchain which can be
+used instead of the official GNU toolchain above. A customized version
+of buildroot for AVR32 can be downloaded here:
-http://avr32linux.org/twiki/bin/view/Main/GettingStarted
+http://www.atmel.no/buildroot/
The AVR32 ports of u-boot, the Linux kernel, the GNU toolchain and
other associated software are actively supported by Atmel Corporation.
-
-Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
--- /dev/null
+AVR32 Port multiplexer configuration
+====================================
+
+On AVR32 chips, most external I/O pins are routed through a port
+multiplexer. There are currently two kinds of port multiplexer
+hardware around with different register interfaces:
+
+ * PIO (AT32AP700x; this is also used on ARM AT91 chips)
+ * GPIO (all other AVR32 chips)
+
+The "PIO" variant supports multiplexing up to two peripherals per pin
+in addition to GPIO (software control). Each pin has configurable
+pull-up, glitch filter, interrupt and multi-drive capabilities.
+
+The "GPIO" variant supports multiplexing up to four peripherals per
+pin in addition to GPIO. Each pin has configurable
+pull-up/pull-down/buskeeper, glitch filter, interrupt, open-drain and
+schmitt-trigger capabilities, as well as configurable drive strength
+and slew rate control.
+
+Both controllers are configured using the same API, but the functions
+may accept different values for some parameters depending on the
+actual portmux implementation, and some parameters may be ignored by
+one of the implementation (e.g. the "PIO" implementation will ignore
+the drive strength flags since the hardware doesn't support
+configurable drive strength.)
+
+Selecting the portmux implementation
+------------------------------------
+Since u-boot is lacking a Kconfig-style configuration engine, the
+portmux implementation must be selected manually by defining one of
+the following symbols:
+
+ CONFIG_PORTMUX_PIO
+ CONFIG_PORTMUX_GPIO
+
+depending on which implementation the chip in question uses.
+
+Identifying pins
+----------------
+The portmux configuration functions described below identify the pins
+to act on based on two parameters: A "port" (i.e. a block of pins
+that somehow belong together) and a pin mask. Both are defined in an
+implementation-specific manner.
+
+The available ports are defined on the form
+
+ #define PORTMUX_PORT_A (something)
+
+where "A" matches the identifier given in the chip's data sheet, and
+"something" is whatever the portmux implementation needs to identify
+the port (usually a memory address).
+
+The pin mask is a bitmask where each '1' bit indicates a pin to apply
+the current operation to. The width of the bitmask may vary from port
+to port, but it is never wider than 32 bits (which is the width of
+'unsigned long' on avr32).
+
+Selecting functions
+-------------------
+Each pin can either be assigned to one of a predefined set of on-chip
+peripherals, or it can be set up to be controlled by software. For the
+former case, the portmux implementation defines an enum containing all
+the possible peripheral functions that can be selected. For example,
+the PIO implementation, which allows multiplexing two peripherals per
+pin, defines it like this:
+
+ enum portmux_function {
+ PORTMUX_FUNC_A,
+ PORTMUX_FUNC_B,
+ };
+
+To configure a set of pins to be connected to a given peripheral
+function, the following function is used.
+
+ void portmux_select_peripheral(void *port, unsigned long pin_mask,
+ enum portmux_function func, unsigned long flags);
+
+To configure a set of pins to be controlled by software (GPIO), the
+following function is used. In this case, no "function" argument is
+required since "GPIO" is a function in its own right.
+
+ void portmux_select_gpio(void *port, unsigned int pin_mask,
+ unsigned long flags);
+
+Both of these functions take a "flags" parameter which may be used to
+alter the default configuration of the pin. This is a bitmask of
+various flags defined in an implementation-specific way, but the names
+of the flags are the same on all implementations.
+
+ PORTMUX_DIR_OUTPUT
+ PORTMUX_DIR_INPUT
+
+These mutually-exlusive flags configure the initial direction of the
+pins. PORTMUX_DIR_OUTPUT means that the pins are driven by the CPU,
+while PORTMUX_DIR_INPUT means that the pins are tristated by the CPU.
+These flags are ignored by portmux_select_peripheral().
+
+ PORTMUX_INIT_HIGH
+ PORTMUX_INIT_LOW
+
+These mutually-exclusive flags configure the initial state of the
+pins: High (Vdd) or low (Vss). They are only effective when
+portmux_select_gpio() is called with the PORTMUX_DIR_OUTPUT flag set.
+
+ PORTMUX_PULL_UP
+ PORTMUX_PULL_DOWN
+ PORTMUX_BUSKEEPER
+
+These mutually-exclusive flags are used to enable any on-chip CMOS
+resistors connected to the pins. PORTMUX_PULL_UP causes the pins to be
+pulled up to Vdd, PORTMUX_PULL_DOWN causes the pins to be pulled down
+to Vss, and PORTMUX_BUSKEEPER will keep the pins in whatever state
+they were left in by whatever was driving them last. If none of the
+flags are specified, the pins are left floating if no one are driving
+them; this is only recommended for always-output pins (e.g. extern
+address and control lines driven by the CPU.)
+
+Note that the "PIO" implementation will silently ignore the
+PORTMUX_PULL_DOWN flag and interpret PORTMUX_BUSKEEPER as
+PORTMUX_PULL_UP.
+
+ PORTMUX_DRIVE_MIN
+ PORTMUX_DRIVE_LOW
+ PORTMUX_DRIVE_HIGH
+ PORTMUX_DRIVE_MAX
+
+These mutually-exlusive flags determine the drive strength of the
+pins. PORTMUX_DRIVE_MIN will give low power-consumption, but may cause
+corruption of high-speed signals. PORTMUX_DRIVE_MAX will give high
+power-consumption, but may be necessary on pins toggling at very high
+speeds. PORTMUX_DRIVE_LOW and PORTMUX_DRIVE_HIGH specify something in
+between the other two.
+
+Note that setting the drive strength too high may cause excessive
+overshoot and EMI problems, which may in turn cause signal corruption.
+Also note that the "PIO" implementation will silently ignore these
+flags.
+
+ PORTMUX_OPEN_DRAIN
+
+This flag will configure the pins as "open drain", i.e. setting the
+pin state to 0 will drive it low, while setting it to 1 will leave it
+floating (or, in most cases, let it be pulled high by an internal or
+external pull-up resistor.) In the data sheet for chips using the
+"PIO" variant, this mode is called "multi-driver".
+
+Enabling specific peripherals
+-----------------------------
+In addition to the above functions, each chip provides a set of
+functions for setting up the port multiplexer to use a given
+peripheral. The following are some of the functions available.
+
+All the functions below take a "drive_strength" parameter, which must
+be one of the PORTMUX_DRIVE_x flags specified above. Any other
+portmux flags will be silently filtered out.
+
+To set up the External Bus Interface (EBI), call
+
+ void portmux_enable_ebi(unsigned int bus_width,
+ unsigned long flags, unsigned long drive_strength)
+
+where "bus_width" must be either 16 or 32. "flags" can be any
+combination of the following flags.
+
+ PORTMUX_EBI_CS(x) /* Enable chip select x */
+ PORTMUX_EBI_NAND /* Enable NAND flash interface */
+ PORTMUX_EBI_CF(x) /* Enable CompactFlash interface x */
+ PORTMUX_EBI_NWAIT /* Enable NWAIT signal */
+
+To set up a USART, call
+
+ void portmux_enable_usartX(unsigned long drive_strength);
+
+where X is replaced by the USART instance to be configured.
+
+To set up an ethernet MAC:
+
+ void portmux_enable_macbX(unsigned long flags,
+ unsigned long drive_strength);
+
+where X is replaced by the MACB instance to be configured. "flags" can
+be any combination of the following flags.
+
+ PORTMUX_MACB_RMII /* Just set up the RMII interface */
+ PORTMUX_MACB_MII /* Set up full MII interface */
+ PORTMUX_MACB_SPEED /* Enable the SPEED pin */
+
+To set up the MMC controller:
+
+ void portmux_enable_mmci(unsigned long slot, unsigned long flags
+ unsigned long drive_strength);
+
+where "slot" identifies which of the alternative SD card slots to
+enable. "flags" can be any combination of the following flags:
+
+ PORTMUX_MMCI_4BIT /* Enable 4-bit SD card interface */
+ PORTMUX_MMCI_8BIT /* Enable 8-bit MMC+ interface */
+ PORTMUX_MMCI_EXT_PULLUP /* Board has external pull-ups */
+
+To set up a SPI controller:
+
+ void portmux_enable_spiX(unsigned long cs_mask,
+ unsigned long drive_strength);
+
+where X is replaced by the SPI instance to be configured. "cs_mask" is
+a 4-bit bitmask specifying which of the four standard chip select
+lines to set up as GPIOs.
#define __ASM_AVR32_ARCH_CLK_H__
#include <asm/arch/chip-features.h>
+#include <asm/arch/portmux.h>
#ifdef CONFIG_PLL
-#define MAIN_CLK_RATE ((CONFIG_SYS_OSC0_HZ / CONFIG_SYS_PLL0_DIV) * CONFIG_SYS_PLL0_MUL)
+#define PLL0_RATE ((CONFIG_SYS_OSC0_HZ / CONFIG_SYS_PLL0_DIV) \
+ * CONFIG_SYS_PLL0_MUL)
+#define MAIN_CLK_RATE PLL0_RATE
#else
-#define MAIN_CLK_RATE (CONFIG_SYS_OSC0_HZ)
+#define MAIN_CLK_RATE (CONFIG_SYS_OSC0_HZ)
#endif
static inline unsigned long get_cpu_clk_rate(void)
#endif
extern void clk_init(void);
-extern void gclk_init(void) __attribute__((weak));
/* Board code may need the SDRAM base clock as a compile-time constant */
#define SDRAMC_BUS_HZ (MAIN_CLK_RATE >> CONFIG_SYS_CLKDIV_HSB)
+/* Generic clock control */
+enum gclk_parent {
+ GCLK_PARENT_OSC0 = 0,
+ GCLK_PARENT_OSC1 = 1,
+ GCLK_PARENT_PLL0 = 2,
+ GCLK_PARENT_PLL1 = 3,
+};
+
+/* Some generic clocks have specific roles */
+#define GCLK_DAC_SAMPLE_CLK 6
+#define GCLK_LCDC_PIXCLK 7
+
+extern unsigned long __gclk_set_rate(unsigned int id, enum gclk_parent parent,
+ unsigned long rate, unsigned long parent_rate);
+
+/**
+ * gclk_set_rate - configure and enable a generic clock
+ * @id: Which GCLK[id] to enable
+ * @parent: Parent clock feeding the GCLK
+ * @rate: Target rate of the GCLK in Hz
+ *
+ * Returns the actual GCLK rate in Hz, after rounding to the nearest
+ * supported rate.
+ *
+ * All three parameters are usually constant, hence the inline.
+ */
+static inline unsigned long gclk_set_rate(unsigned int id,
+ enum gclk_parent parent, unsigned long rate)
+{
+ unsigned long parent_rate;
+
+ if (id > 7)
+ return 0;
+
+ switch (parent) {
+ case GCLK_PARENT_OSC0:
+ parent_rate = CONFIG_SYS_OSC0_HZ;
+ break;
+#ifdef CONFIG_SYS_OSC1_HZ
+ case GCLK_PARENT_OSC1:
+ parent_rate = CONFIG_SYS_OSC1_HZ;
+ break;
+#endif
+#ifdef PLL0_RATE
+ case GCLK_PARENT_PLL0:
+ parent_rate = PLL0_RATE;
+ break;
+#endif
+#ifdef PLL1_RATE
+ case GCLK_PARENT_PLL1:
+ parent_rate = PLL1_RATE;
+ break;
+#endif
+ default:
+ parent_rate = 0;
+ break;
+ }
+
+ return __gclk_set_rate(id, parent, rate, parent_rate);
+}
+
+/**
+ * gclk_enable_output - enable output on a GCLK pin
+ * @id: Which GCLK[id] pin to enable
+ * @drive_strength: Drive strength of external GCLK pin, if applicable
+ */
+static inline void gclk_enable_output(unsigned int id,
+ unsigned long drive_strength)
+{
+ switch (id) {
+ case 0:
+ portmux_select_peripheral(PORTMUX_PORT_A, 1 << 30,
+ PORTMUX_FUNC_A, drive_strength);
+ break;
+ case 1:
+ portmux_select_peripheral(PORTMUX_PORT_A, 1 << 31,
+ PORTMUX_FUNC_A, drive_strength);
+ break;
+ case 2:
+ portmux_select_peripheral(PORTMUX_PORT_B, 1 << 19,
+ PORTMUX_FUNC_A, drive_strength);
+ break;
+ case 3:
+ portmux_select_peripheral(PORTMUX_PORT_B, 1 << 29,
+ PORTMUX_FUNC_A, drive_strength);
+ break;
+ case 4:
+ portmux_select_peripheral(PORTMUX_PORT_B, 1 << 30,
+ PORTMUX_FUNC_A, drive_strength);
+ break;
+ }
+}
+
#endif /* __ASM_AVR32_ARCH_CLK_H__ */
/*
- * Copyright (C) 2006 Atmel Corporation
+ * Copyright (C) 2006, 2008 Atmel Corporation
*
* See file CREDITS for list of people who contributed to this
* project.
* Pin numbers identifying specific GPIO pins on the chip.
*/
#define GPIO_PIOA_BASE (0)
-#define GPIO_PIN_PA0 (GPIO_PIOA_BASE + 0)
-#define GPIO_PIN_PA1 (GPIO_PIOA_BASE + 1)
-#define GPIO_PIN_PA2 (GPIO_PIOA_BASE + 2)
-#define GPIO_PIN_PA3 (GPIO_PIOA_BASE + 3)
-#define GPIO_PIN_PA4 (GPIO_PIOA_BASE + 4)
-#define GPIO_PIN_PA5 (GPIO_PIOA_BASE + 5)
-#define GPIO_PIN_PA6 (GPIO_PIOA_BASE + 6)
-#define GPIO_PIN_PA7 (GPIO_PIOA_BASE + 7)
-#define GPIO_PIN_PA8 (GPIO_PIOA_BASE + 8)
-#define GPIO_PIN_PA9 (GPIO_PIOA_BASE + 9)
-#define GPIO_PIN_PA10 (GPIO_PIOA_BASE + 10)
-#define GPIO_PIN_PA11 (GPIO_PIOA_BASE + 11)
-#define GPIO_PIN_PA12 (GPIO_PIOA_BASE + 12)
-#define GPIO_PIN_PA13 (GPIO_PIOA_BASE + 13)
-#define GPIO_PIN_PA14 (GPIO_PIOA_BASE + 14)
-#define GPIO_PIN_PA15 (GPIO_PIOA_BASE + 15)
-#define GPIO_PIN_PA16 (GPIO_PIOA_BASE + 16)
-#define GPIO_PIN_PA17 (GPIO_PIOA_BASE + 17)
-#define GPIO_PIN_PA18 (GPIO_PIOA_BASE + 18)
-#define GPIO_PIN_PA19 (GPIO_PIOA_BASE + 19)
-#define GPIO_PIN_PA20 (GPIO_PIOA_BASE + 20)
-#define GPIO_PIN_PA21 (GPIO_PIOA_BASE + 21)
-#define GPIO_PIN_PA22 (GPIO_PIOA_BASE + 22)
-#define GPIO_PIN_PA23 (GPIO_PIOA_BASE + 23)
-#define GPIO_PIN_PA24 (GPIO_PIOA_BASE + 24)
-#define GPIO_PIN_PA25 (GPIO_PIOA_BASE + 25)
-#define GPIO_PIN_PA26 (GPIO_PIOA_BASE + 26)
-#define GPIO_PIN_PA27 (GPIO_PIOA_BASE + 27)
-#define GPIO_PIN_PA28 (GPIO_PIOA_BASE + 28)
-#define GPIO_PIN_PA29 (GPIO_PIOA_BASE + 29)
-#define GPIO_PIN_PA30 (GPIO_PIOA_BASE + 30)
-#define GPIO_PIN_PA31 (GPIO_PIOA_BASE + 31)
-
#define GPIO_PIOB_BASE (GPIO_PIOA_BASE + 32)
-#define GPIO_PIN_PB0 (GPIO_PIOB_BASE + 0)
-#define GPIO_PIN_PB1 (GPIO_PIOB_BASE + 1)
-#define GPIO_PIN_PB2 (GPIO_PIOB_BASE + 2)
-#define GPIO_PIN_PB3 (GPIO_PIOB_BASE + 3)
-#define GPIO_PIN_PB4 (GPIO_PIOB_BASE + 4)
-#define GPIO_PIN_PB5 (GPIO_PIOB_BASE + 5)
-#define GPIO_PIN_PB6 (GPIO_PIOB_BASE + 6)
-#define GPIO_PIN_PB7 (GPIO_PIOB_BASE + 7)
-#define GPIO_PIN_PB8 (GPIO_PIOB_BASE + 8)
-#define GPIO_PIN_PB9 (GPIO_PIOB_BASE + 9)
-#define GPIO_PIN_PB10 (GPIO_PIOB_BASE + 10)
-#define GPIO_PIN_PB11 (GPIO_PIOB_BASE + 11)
-#define GPIO_PIN_PB12 (GPIO_PIOB_BASE + 12)
-#define GPIO_PIN_PB13 (GPIO_PIOB_BASE + 13)
-#define GPIO_PIN_PB14 (GPIO_PIOB_BASE + 14)
-#define GPIO_PIN_PB15 (GPIO_PIOB_BASE + 15)
-#define GPIO_PIN_PB16 (GPIO_PIOB_BASE + 16)
-#define GPIO_PIN_PB17 (GPIO_PIOB_BASE + 17)
-#define GPIO_PIN_PB18 (GPIO_PIOB_BASE + 18)
-#define GPIO_PIN_PB19 (GPIO_PIOB_BASE + 19)
-#define GPIO_PIN_PB20 (GPIO_PIOB_BASE + 20)
-#define GPIO_PIN_PB21 (GPIO_PIOB_BASE + 21)
-#define GPIO_PIN_PB22 (GPIO_PIOB_BASE + 22)
-#define GPIO_PIN_PB23 (GPIO_PIOB_BASE + 23)
-#define GPIO_PIN_PB24 (GPIO_PIOB_BASE + 24)
-#define GPIO_PIN_PB25 (GPIO_PIOB_BASE + 25)
-#define GPIO_PIN_PB26 (GPIO_PIOB_BASE + 26)
-#define GPIO_PIN_PB27 (GPIO_PIOB_BASE + 27)
-#define GPIO_PIN_PB28 (GPIO_PIOB_BASE + 28)
-#define GPIO_PIN_PB29 (GPIO_PIOB_BASE + 29)
-#define GPIO_PIN_PB30 (GPIO_PIOB_BASE + 30)
-
#define GPIO_PIOC_BASE (GPIO_PIOB_BASE + 32)
-#define GPIO_PIN_PC0 (GPIO_PIOC_BASE + 0)
-#define GPIO_PIN_PC1 (GPIO_PIOC_BASE + 1)
-#define GPIO_PIN_PC2 (GPIO_PIOC_BASE + 2)
-#define GPIO_PIN_PC3 (GPIO_PIOC_BASE + 3)
-#define GPIO_PIN_PC4 (GPIO_PIOC_BASE + 4)
-#define GPIO_PIN_PC5 (GPIO_PIOC_BASE + 5)
-#define GPIO_PIN_PC6 (GPIO_PIOC_BASE + 6)
-#define GPIO_PIN_PC7 (GPIO_PIOC_BASE + 7)
-#define GPIO_PIN_PC8 (GPIO_PIOC_BASE + 8)
-#define GPIO_PIN_PC9 (GPIO_PIOC_BASE + 9)
-#define GPIO_PIN_PC10 (GPIO_PIOC_BASE + 10)
-#define GPIO_PIN_PC11 (GPIO_PIOC_BASE + 11)
-#define GPIO_PIN_PC12 (GPIO_PIOC_BASE + 12)
-#define GPIO_PIN_PC13 (GPIO_PIOC_BASE + 13)
-#define GPIO_PIN_PC14 (GPIO_PIOC_BASE + 14)
-#define GPIO_PIN_PC15 (GPIO_PIOC_BASE + 15)
-#define GPIO_PIN_PC16 (GPIO_PIOC_BASE + 16)
-#define GPIO_PIN_PC17 (GPIO_PIOC_BASE + 17)
-#define GPIO_PIN_PC18 (GPIO_PIOC_BASE + 18)
-#define GPIO_PIN_PC19 (GPIO_PIOC_BASE + 19)
-#define GPIO_PIN_PC20 (GPIO_PIOC_BASE + 20)
-#define GPIO_PIN_PC21 (GPIO_PIOC_BASE + 21)
-#define GPIO_PIN_PC22 (GPIO_PIOC_BASE + 22)
-#define GPIO_PIN_PC23 (GPIO_PIOC_BASE + 23)
-#define GPIO_PIN_PC24 (GPIO_PIOC_BASE + 24)
-#define GPIO_PIN_PC25 (GPIO_PIOC_BASE + 25)
-#define GPIO_PIN_PC26 (GPIO_PIOC_BASE + 26)
-#define GPIO_PIN_PC27 (GPIO_PIOC_BASE + 27)
-#define GPIO_PIN_PC28 (GPIO_PIOC_BASE + 28)
-#define GPIO_PIN_PC29 (GPIO_PIOC_BASE + 29)
-#define GPIO_PIN_PC30 (GPIO_PIOC_BASE + 30)
-#define GPIO_PIN_PC31 (GPIO_PIOC_BASE + 31)
-
#define GPIO_PIOD_BASE (GPIO_PIOC_BASE + 32)
-#define GPIO_PIN_PD0 (GPIO_PIOD_BASE + 0)
-#define GPIO_PIN_PD1 (GPIO_PIOD_BASE + 1)
-#define GPIO_PIN_PD2 (GPIO_PIOD_BASE + 2)
-#define GPIO_PIN_PD3 (GPIO_PIOD_BASE + 3)
-#define GPIO_PIN_PD4 (GPIO_PIOD_BASE + 4)
-#define GPIO_PIN_PD5 (GPIO_PIOD_BASE + 5)
-#define GPIO_PIN_PD6 (GPIO_PIOD_BASE + 6)
-#define GPIO_PIN_PD7 (GPIO_PIOD_BASE + 7)
-#define GPIO_PIN_PD8 (GPIO_PIOD_BASE + 8)
-#define GPIO_PIN_PD9 (GPIO_PIOD_BASE + 9)
-#define GPIO_PIN_PD10 (GPIO_PIOD_BASE + 10)
-#define GPIO_PIN_PD11 (GPIO_PIOD_BASE + 11)
-#define GPIO_PIN_PD12 (GPIO_PIOD_BASE + 12)
-#define GPIO_PIN_PD13 (GPIO_PIOD_BASE + 13)
-#define GPIO_PIN_PD14 (GPIO_PIOD_BASE + 14)
-#define GPIO_PIN_PD15 (GPIO_PIOD_BASE + 15)
-#define GPIO_PIN_PD16 (GPIO_PIOD_BASE + 16)
-#define GPIO_PIN_PD17 (GPIO_PIOD_BASE + 17)
-
#define GPIO_PIOE_BASE (GPIO_PIOD_BASE + 32)
-#define GPIO_PIN_PE0 (GPIO_PIOE_BASE + 0)
-#define GPIO_PIN_PE1 (GPIO_PIOE_BASE + 1)
-#define GPIO_PIN_PE2 (GPIO_PIOE_BASE + 2)
-#define GPIO_PIN_PE3 (GPIO_PIOE_BASE + 3)
-#define GPIO_PIN_PE4 (GPIO_PIOE_BASE + 4)
-#define GPIO_PIN_PE5 (GPIO_PIOE_BASE + 5)
-#define GPIO_PIN_PE6 (GPIO_PIOE_BASE + 6)
-#define GPIO_PIN_PE7 (GPIO_PIOE_BASE + 7)
-#define GPIO_PIN_PE8 (GPIO_PIOE_BASE + 8)
-#define GPIO_PIN_PE9 (GPIO_PIOE_BASE + 9)
-#define GPIO_PIN_PE10 (GPIO_PIOE_BASE + 10)
-#define GPIO_PIN_PE11 (GPIO_PIOE_BASE + 11)
-#define GPIO_PIN_PE12 (GPIO_PIOE_BASE + 12)
-#define GPIO_PIN_PE13 (GPIO_PIOE_BASE + 13)
-#define GPIO_PIN_PE14 (GPIO_PIOE_BASE + 14)
-#define GPIO_PIN_PE15 (GPIO_PIOE_BASE + 15)
-#define GPIO_PIN_PE16 (GPIO_PIOE_BASE + 16)
-#define GPIO_PIN_PE17 (GPIO_PIOE_BASE + 17)
-#define GPIO_PIN_PE18 (GPIO_PIOE_BASE + 18)
-#define GPIO_PIN_PE19 (GPIO_PIOE_BASE + 19)
-#define GPIO_PIN_PE20 (GPIO_PIOE_BASE + 20)
-#define GPIO_PIN_PE21 (GPIO_PIOE_BASE + 21)
-#define GPIO_PIN_PE22 (GPIO_PIOE_BASE + 22)
-#define GPIO_PIN_PE23 (GPIO_PIOE_BASE + 23)
-#define GPIO_PIN_PE24 (GPIO_PIOE_BASE + 24)
-#define GPIO_PIN_PE25 (GPIO_PIOE_BASE + 25)
-#define GPIO_PIN_PE26 (GPIO_PIOE_BASE + 26)
+#define GPIO_PIN_PA(x) (GPIO_PIOA_BASE + (x))
+#define GPIO_PIN_PB(x) (GPIO_PIOB_BASE + (x))
+#define GPIO_PIN_PC(x) (GPIO_PIOC_BASE + (x))
+#define GPIO_PIN_PD(x) (GPIO_PIOD_BASE + (x))
+#define GPIO_PIN_PE(x) (GPIO_PIOE_BASE + (x))
-#define GPIOF_PULLUP 0x00000001 /* (not-OUT) Enable pull-up */
-#define GPIOF_OUTPUT 0x00000002 /* (OUT) Enable output driver */
-#define GPIOF_DEGLITCH 0x00000004 /* (IN) Filter glitches */
-#define GPIOF_MULTIDRV 0x00000008 /* Enable multidriver option */
-
-static inline void *gpio_pin_to_addr(unsigned int pin)
+static inline void *pio_pin_to_port(unsigned int pin)
{
switch (pin >> 5) {
case 0:
}
}
-void gpio_select_periph_A(unsigned int pin, int use_pullup);
-void gpio_select_periph_B(unsigned int pin, int use_pullup);
-void gpio_select_pio(unsigned int pin, unsigned long gpiof_flags);
-void gpio_set_value(unsigned int pin, int value);
-int gpio_get_value(unsigned int pin);
-
-void gpio_enable_ebi(void);
-
-#ifdef AT32AP700x_CHIP_HAS_USART
-void gpio_enable_usart0(void);
-void gpio_enable_usart1(void);
-void gpio_enable_usart2(void);
-void gpio_enable_usart3(void);
-#endif
-#ifdef AT32AP700x_CHIP_HAS_MACB
-void gpio_enable_macb0(void);
-void gpio_enable_macb1(void);
-#endif
-#ifdef AT32AP700x_CHIP_HAS_MMCI
-void gpio_enable_mmci(void);
-#endif
-#ifdef AT32AP700x_CHIP_HAS_SPI
-void gpio_enable_spi0(unsigned long cs_mask);
-void gpio_enable_spi1(unsigned long cs_mask);
-#endif
+#include <asm/arch-common/portmux-pio.h>
#endif /* __ASM_AVR32_ARCH_GPIO_H__ */
--- /dev/null
+/*
+ * Copyright (C) 2006, 2008 Atmel Corporation
+ *
+ * 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 __ASM_AVR32_ARCH_PORTMUX_H__
+#define __ASM_AVR32_ARCH_PORTMUX_H__
+
+#include <asm/arch/gpio.h>
+
+#define PORTMUX_PORT_A ((void *)PIOA_BASE)
+#define PORTMUX_PORT_B ((void *)PIOB_BASE)
+#define PORTMUX_PORT_C ((void *)PIOC_BASE)
+#define PORTMUX_PORT_D ((void *)PIOD_BASE)
+#define PORTMUX_PORT_E ((void *)PIOE_BASE)
+
+void portmux_enable_ebi(unsigned int bus_width, unsigned int addr_width,
+ unsigned long flags, unsigned long drive_strength);
+
+#define PORTMUX_EBI_CS(x) (1 << (x))
+#define PORTMUX_EBI_NAND (1 << 6)
+#define PORTMUX_EBI_CF(x) (1 << ((x) + 7))
+#define PORTMUX_EBI_NWAIT (1 << 9)
+
+#ifdef AT32AP700x_CHIP_HAS_USART
+static inline void portmux_enable_usart0(unsigned long drive_strength)
+{
+ portmux_select_peripheral(PORTMUX_PORT_A, (1 << 8) | (1 << 9),
+ PORTMUX_FUNC_B, 0);
+}
+
+static inline void portmux_enable_usart1(unsigned long drive_strength)
+{
+ portmux_select_peripheral(PORTMUX_PORT_A, (1 << 17) | (1 << 18),
+ PORTMUX_FUNC_A, 0);
+}
+
+static inline void portmux_enable_usart2(unsigned long drive_strength)
+{
+ portmux_select_peripheral(PORTMUX_PORT_B, (1 << 26) | (1 << 27),
+ PORTMUX_FUNC_B, 0);
+}
+
+static inline void portmux_enable_usart3(unsigned long drive_strength)
+{
+ portmux_select_peripheral(PORTMUX_PORT_B, (1 << 17) | (1 << 18),
+ PORTMUX_FUNC_B, 0);
+}
+#endif
+#ifdef AT32AP700x_CHIP_HAS_MACB
+void portmux_enable_macb0(unsigned long flags, unsigned long drive_strength);
+void portmux_enable_macb1(unsigned long flags, unsigned long drive_strength);
+
+#define PORTMUX_MACB_RMII (0)
+#define PORTMUX_MACB_MII (1 << 0)
+#define PORTMUX_MACB_SPEED (1 << 1)
+
+#endif
+#ifdef AT32AP700x_CHIP_HAS_MMCI
+void portmux_enable_mmci(unsigned int slot, unsigned long flags,
+ unsigned long drive_strength);
+
+#define PORTMUX_MMCI_4BIT (1 << 0)
+#define PORTMUX_MMCI_8BIT (PORTMUX_MMCI_4BIT | (1 << 1))
+#define PORTMUX_MMCI_EXT_PULLUP (1 << 2)
+
+#endif
+#ifdef AT32AP700x_CHIP_HAS_SPI
+void portmux_enable_spi0(unsigned long cs_mask, unsigned long drive_strength);
+void portmux_enable_spi1(unsigned long cs_mask, unsigned long drive_strength);
+#endif
+
+#endif /* __ASM_AVR32_ARCH_PORTMUX_H__ */
--- /dev/null
+/*
+ * Copyright (C) 2008 Atmel Corporation
+ *
+ * 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 __AVR32_PORTMUX_GPIO_H__
+#define __AVR32_PORTMUX_GPIO_H__
+
+#include <asm/io.h>
+
+/* Register offsets */
+struct gpio_regs {
+ u32 GPER;
+ u32 GPERS;
+ u32 GPERC;
+ u32 GPERT;
+ u32 PMR0;
+ u32 PMR0S;
+ u32 PMR0C;
+ u32 PMR0T;
+ u32 PMR1;
+ u32 PMR1S;
+ u32 PMR1C;
+ u32 PMR1T;
+ u32 __reserved0[4];
+ u32 ODER;
+ u32 ODERS;
+ u32 ODERC;
+ u32 ODERT;
+ u32 OVR;
+ u32 OVRS;
+ u32 OVRC;
+ u32 OVRT;
+ u32 PVR;
+ u32 __reserved_PVRS;
+ u32 __reserved_PVRC;
+ u32 __reserved_PVRT;
+ u32 PUER;
+ u32 PUERS;
+ u32 PUERC;
+ u32 PUERT;
+ u32 PDER;
+ u32 PDERS;
+ u32 PDERC;
+ u32 PDERT;
+ u32 IER;
+ u32 IERS;
+ u32 IERC;
+ u32 IERT;
+ u32 IMR0;
+ u32 IMR0S;
+ u32 IMR0C;
+ u32 IMR0T;
+ u32 IMR1;
+ u32 IMR1S;
+ u32 IMR1C;
+ u32 IMR1T;
+ u32 GFER;
+ u32 GFERS;
+ u32 GFERC;
+ u32 GFERT;
+ u32 IFR;
+ u32 __reserved_IFRS;
+ u32 IFRC;
+ u32 __reserved_IFRT;
+ u32 ODMER;
+ u32 ODMERS;
+ u32 ODMERC;
+ u32 ODMERT;
+ u32 __reserved1[4];
+ u32 ODCR0;
+ u32 ODCR0S;
+ u32 ODCR0C;
+ u32 ODCR0T;
+ u32 ODCR1;
+ u32 ODCR1S;
+ u32 ODCR1C;
+ u32 ODCR1T;
+ u32 __reserved2[4];
+ u32 OSRR0;
+ u32 OSRR0S;
+ u32 OSRR0C;
+ u32 OSRR0T;
+ u32 __reserved3[8];
+ u32 STER;
+ u32 STERS;
+ u32 STERC;
+ u32 STERT;
+ u32 __reserved4[35];
+ u32 VERSION;
+};
+
+/* Register access macros */
+#define gpio_readl(port, reg) \
+ __raw_readl(&((struct gpio_regs *)port)->reg)
+#define gpio_writel(gpio, reg, value) \
+ __raw_writel(value, &((struct gpio_regs *)port)->reg)
+
+/* Portmux API starts here. See doc/README.AVR32-port-muxing */
+
+enum portmux_function {
+ PORTMUX_FUNC_A,
+ PORTMUX_FUNC_B,
+ PORTMUX_FUNC_C,
+ PORTMUX_FUNC_D,
+};
+
+#define PORTMUX_DIR_INPUT (0 << 0)
+#define PORTMUX_DIR_OUTPUT (1 << 0)
+#define PORTMUX_INIT_LOW (0 << 1)
+#define PORTMUX_INIT_HIGH (1 << 1)
+#define PORTMUX_PULL_UP (1 << 2)
+#define PORTMUX_PULL_DOWN (2 << 2)
+#define PORTMUX_BUSKEEPER (3 << 2)
+#define PORTMUX_DRIVE_MIN (0 << 4)
+#define PORTMUX_DRIVE_LOW (1 << 4)
+#define PORTMUX_DRIVE_HIGH (2 << 4)
+#define PORTMUX_DRIVE_MAX (3 << 4)
+#define PORTMUX_OPEN_DRAIN (1 << 6)
+
+void portmux_select_peripheral(void *port, unsigned long pin_mask,
+ enum portmux_function func, unsigned long flags);
+void portmux_select_gpio(void *port, unsigned long pin_mask,
+ unsigned long flags);
+
+/* Internal helper functions */
+
+static inline void *gpio_pin_to_port(unsigned int pin)
+{
+ return (void *)GPIO_BASE + (pin >> 5) * 0x200;
+}
+
+static inline void __gpio_set_output_value(void *port, unsigned int pin,
+ int value)
+{
+ if (value)
+ gpio_writel(port, OVRS, 1 << pin);
+ else
+ gpio_writel(port, OVRC, 1 << pin);
+}
+
+static inline int __gpio_get_input_value(void *port, unsigned int pin)
+{
+ return (gpio_readl(port, PVR) >> pin) & 1;
+}
+
+void gpio_set_output_value(unsigned int pin, int value);
+int gpio_get_input_value(unsigned int pin);
+
+/* GPIO API starts here */
+
+/*
+ * GCC doesn't realize that the constant case is extremely trivial,
+ * so we need to help it make the right decision by using
+ * always_inline.
+ */
+__attribute__((always_inline))
+static inline void gpio_set_value(unsigned int pin, int value)
+{
+ if (__builtin_constant_p(pin))
+ __gpio_set_output_value(gpio_pin_to_port(pin),
+ pin & 0x1f, value);
+ else
+ gpio_set_output_value(pin, value);
+}
+
+__attribute__((always_inline))
+static inline int gpio_get_value(unsigned int pin)
+{
+ if (__builtin_constant_p(pin))
+ return __gpio_get_input_value(gpio_pin_to_port(pin),
+ pin & 0x1f);
+ else
+ return gpio_get_input_value(pin);
+}
+
+#endif /* __AVR32_PORTMUX_GPIO_H__ */
--- /dev/null
+/*
+ * Copyright (C) 2006, 2008 Atmel Corporation
+ *
+ * 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 __AVR32_PORTMUX_PIO_H__
+#define __AVR32_PORTMUX_PIO_H__
+
+#include <asm/io.h>
+
+/* PIO register offsets */
+#define PIO_PER 0x0000
+#define PIO_PDR 0x0004
+#define PIO_PSR 0x0008
+#define PIO_OER 0x0010
+#define PIO_ODR 0x0014
+#define PIO_OSR 0x0018
+#define PIO_IFER 0x0020
+#define PIO_IFDR 0x0024
+#define PIO_ISFR 0x0028
+#define PIO_SODR 0x0030
+#define PIO_CODR 0x0034
+#define PIO_ODSR 0x0038
+#define PIO_PDSR 0x003c
+#define PIO_IER 0x0040
+#define PIO_IDR 0x0044
+#define PIO_IMR 0x0048
+#define PIO_ISR 0x004c
+#define PIO_MDER 0x0050
+#define PIO_MDDR 0x0054
+#define PIO_MDSR 0x0058
+#define PIO_PUDR 0x0060
+#define PIO_PUER 0x0064
+#define PIO_PUSR 0x0068
+#define PIO_ASR 0x0070
+#define PIO_BSR 0x0074
+#define PIO_ABSR 0x0078
+#define PIO_OWER 0x00a0
+#define PIO_OWDR 0x00a4
+#define PIO_OWSR 0x00a8
+
+/* Hardware register access */
+#define pio_readl(base, reg) \
+ __raw_readl((void *)base + PIO_##reg)
+#define pio_writel(base, reg, value) \
+ __raw_writel((value), (void *)base + PIO_##reg)
+
+/* Portmux API starts here. See doc/README.AVR32-port-muxing */
+
+enum portmux_function {
+ PORTMUX_FUNC_A,
+ PORTMUX_FUNC_B,
+};
+
+/* Pull-down, buskeeper and drive strength are not supported */
+#define PORTMUX_DIR_INPUT (0 << 0)
+#define PORTMUX_DIR_OUTPUT (1 << 0)
+#define PORTMUX_INIT_LOW (0 << 1)
+#define PORTMUX_INIT_HIGH (1 << 1)
+#define PORTMUX_PULL_UP (1 << 2)
+#define PORTMUX_PULL_DOWN (0)
+#define PORTMUX_BUSKEEPER PORTMUX_PULL_UP
+#define PORTMUX_DRIVE_MIN (0)
+#define PORTMUX_DRIVE_LOW (0)
+#define PORTMUX_DRIVE_HIGH (0)
+#define PORTMUX_DRIVE_MAX (0)
+#define PORTMUX_OPEN_DRAIN (1 << 3)
+
+void portmux_select_peripheral(void *port, unsigned long pin_mask,
+ enum portmux_function func, unsigned long flags);
+void portmux_select_gpio(void *port, unsigned long pin_mask,
+ unsigned long flags);
+
+/* Internal helper functions */
+
+static inline void __pio_set_output_value(void *port, unsigned int pin,
+ int value)
+{
+ /*
+ * value will usually be constant, but it's pretty cheap
+ * either way.
+ */
+ if (value)
+ pio_writel(port, SODR, 1 << pin);
+ else
+ pio_writel(port, CODR, 1 << pin);
+}
+
+static inline int __pio_get_input_value(void *port, unsigned int pin)
+{
+ return (pio_readl(port, PDSR) >> pin) & 1;
+}
+
+void pio_set_output_value(unsigned int pin, int value);
+int pio_get_input_value(unsigned int pin);
+
+/* GPIO API starts here */
+
+/*
+ * GCC doesn't realize that the constant case is extremely trivial,
+ * so we need to help it make the right decision by using
+ * always_inline.
+ */
+__attribute__((always_inline))
+static inline void gpio_set_value(unsigned int pin, int value)
+{
+ if (__builtin_constant_p(pin))
+ __pio_set_output_value(pio_pin_to_port(pin), pin & 0x1f, value);
+ else
+ pio_set_output_value(pin, value);
+}
+
+__attribute__((always_inline))
+static inline int gpio_get_value(unsigned int pin)
+{
+ if (__builtin_constant_p(pin))
+ return __pio_get_input_value(pio_pin_to_port(pin), pin & 0x1f);
+ else
+ return pio_get_input_value(pin);
+}
+
+#endif /* __AVR32_PORTMUX_PIO_H__ */
extern int cpu_init(void);
extern int timer_init(void);
-extern void board_init_info(void);
#endif /* __ASM_AVR32_INITCALLS_H__ */
struct sdram_config {
/* Number of data bits. */
enum {
- SDRAM_DATA_16BIT,
- SDRAM_DATA_32BIT,
+ SDRAM_DATA_16BIT = 16,
+ SDRAM_DATA_32BIT = 32,
} data_bits;
/* Number of address bits */
#define CONFIG_ATMEL_USART 1
#define CONFIG_MACB 1
-#define CONFIG_PIO2 1
+#define CONFIG_PORTMUX_PIO 1
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC 1
#define CONFIG_MMC 1
#define CONFIG_ATMEL_USART 1
#define CONFIG_MACB 1
-#define CONFIG_PIO2 1
+#define CONFIG_PORTMUX_PIO 1
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC 1
#define CONFIG_MMC 1
#undef CONFIG_CMD_XIMG
#define CONFIG_ATMEL_USART 1
-#define CONFIG_PIO2 1
+#define CONFIG_PORTMUX_PIO 1
#define CONFIG_SYS_HSDRAMC 1
#define CONFIG_MMC 1
#define CONFIG_ATMEL_MCI 1
#undef CONFIG_CMD_XIMG
#define CONFIG_ATMEL_USART 1
-#define CONFIG_PIO2 1
+#define CONFIG_PORTMUX_PIO 1
#define CONFIG_SYS_HSDRAMC 1
#define CONFIG_MMC 1
#define CONFIG_ATMEL_MCI 1
#define CONFIG_ATMEL_USART 1
#define CONFIG_MACB 1
-#define CONFIG_PIO2 1
+#define CONFIG_PORTMUX_PIO 1
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC 1
#define CONFIG_MMC 1
#define CONFIG_ATMEL_USART 1
#define CONFIG_MACB 1
-#define CONFIG_PIO2 1
+#define CONFIG_PORTMUX_PIO 1
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC 1
#define CONFIG_MMC 1
#define CONFIG_ATMEL_USART 1
#define CONFIG_MACB 1
-#define CONFIG_PIO2 1
+#define CONFIG_PORTMUX_PIO 1
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC 1
#define CONFIG_MMC 1
#define CONFIG_ATMEL_USART 1
#define CONFIG_MACB 1
-#define CONFIG_PIO2 1
+#define CONFIG_PORTMUX_PIO 1
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC 1
#define CONFIG_MMC 1
static unsigned long mem_malloc_end = 0;
static unsigned long mem_malloc_brk = 0;
+/* Weak aliases for optional board functions */
+static int __do_nothing(void)
+{
+ return 0;
+}
+int board_postclk_init(void) __attribute__((weak, alias("__do_nothing")));
+int board_early_init_r(void) __attribute__((weak, alias("__do_nothing")));
+
/* The malloc area is right below the monitor image in RAM */
static void mem_malloc_init(void)
{
/* Perform initialization sequence */
board_early_init_f();
cpu_init();
+ board_postclk_init();
env_init();
init_baudrate();
serial_init();
gd->flags |= GD_FLG_RELOC;
gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
+ board_early_init_r();
+
monitor_flash_len = _edata - _text;
/*
mem_malloc_init();
malloc_bin_reloc();
dma_alloc_init();
- board_init_info();
enable_interrupts();
projects / platform / kernel / u-boot.git / commitdiff