MIPS: Add support for NXP PNX833x (STB222/5) into linux kernel
The following patch add support for the NXP PNX833x SOC. More specifically it adds support for the STB222/5 variant. It fixes the vectored interrupt issue. Signed-off-by: daniel.j.laird <daniel.j.laird@nxp.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>hifive-unleashed-5.1
Daniel Laird
Ralf Baechle
parent
537fa37c86
commit
edb6310aaa
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@ -261,6 +261,19 @@ config MACH_VR41XX
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select SYS_HAS_CPU_VR41XX
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select GENERIC_HARDIRQS_NO__DO_IRQ
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config NXP_STB220
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bool "NXP STB220 board"
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select SOC_PNX833X
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help
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Support for NXP Semiconductors STB220 Development Board.
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config NXP_STB225
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bool "NXP 225 board"
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select SOC_PNX833X
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select SOC_PNX8335
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help
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Support for NXP Semiconductors STB225 Development Board.
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config PNX8550_JBS
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bool "NXP PNX8550 based JBS board"
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select PNX8550
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@ -849,6 +862,24 @@ config MIPS_RM9122
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bool
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select SERIAL_RM9000
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config SOC_PNX833X
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bool
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select CEVT_R4K
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select CSRC_R4K
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select IRQ_CPU
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select DMA_NONCOHERENT
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select SYS_HAS_CPU_MIPS32_R2
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_LITTLE_ENDIAN
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select SYS_SUPPORTS_BIG_ENDIAN
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select GENERIC_HARDIRQS_NO__DO_IRQ
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select GENERIC_GPIO
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select CPU_MIPSR2_IRQ_VI
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config SOC_PNX8335
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bool
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select SOC_PNX833X
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config PNX8550
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bool
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select SOC_PNX8550
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@ -381,6 +381,14 @@ load-$(CONFIG_CASIO_E55) += 0xffffffff80004000
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#
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load-$(CONFIG_TANBAC_TB022X) += 0xffffffff80000000
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# NXP STB225
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core-$(CONFIG_SOC_PNX833X) += arch/mips/nxp/pnx833x/common/
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cflags-$(CONFIG_SOC_PNX833X) += -Iarch/mips/include/asm/mach-pnx833x
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libs-$(CONFIG_NXP_STB220) += arch/mips/nxp/pnx833x/stb22x/
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load-$(CONFIG_NXP_STB220) += 0xffffffff80001000
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libs-$(CONFIG_NXP_STB225) += arch/mips/nxp/pnx833x/stb22x/
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load-$(CONFIG_NXP_STB225) += 0xffffffff80001000
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#
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# Common NXP PNX8550
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#
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,172 @@
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/*
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* gpio.h: GPIO Support for PNX833X.
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*
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* Copyright 2008 NXP Semiconductors
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* Chris Steel <chris.steel@nxp.com>
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* Daniel Laird <daniel.j.laird@nxp.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __ASM_MIPS_MACH_PNX833X_GPIO_H
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#define __ASM_MIPS_MACH_PNX833X_GPIO_H
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/* BIG FAT WARNING: races danger!
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No protections exist here. Current users are only early init code,
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when locking is not needed because no cuncurency yet exists there,
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and GPIO IRQ dispatcher, which does locking.
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However, if many uses will ever happen, proper locking will be needed
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- including locking between different uses
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*/
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#include "pnx833x.h"
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#define SET_REG_BIT(reg, bit) do { (reg |= (1 << (bit))); } while (0)
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#define CLEAR_REG_BIT(reg, bit) do { (reg &= ~(1 << (bit))); } while (0)
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/* Initialize GPIO to a known state */
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static inline void pnx833x_gpio_init(void)
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{
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PNX833X_PIO_DIR = 0;
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PNX833X_PIO_DIR2 = 0;
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PNX833X_PIO_SEL = 0;
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PNX833X_PIO_SEL2 = 0;
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PNX833X_PIO_INT_EDGE = 0;
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PNX833X_PIO_INT_HI = 0;
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PNX833X_PIO_INT_LO = 0;
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/* clear any GPIO interrupt requests */
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PNX833X_PIO_INT_CLEAR = 0xffff;
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PNX833X_PIO_INT_CLEAR = 0;
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PNX833X_PIO_INT_ENABLE = 0;
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}
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/* Select GPIO direction for a pin */
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static inline void pnx833x_gpio_select_input(unsigned int pin)
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{
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if (pin < 32)
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CLEAR_REG_BIT(PNX833X_PIO_DIR, pin);
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else
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CLEAR_REG_BIT(PNX833X_PIO_DIR2, pin & 31);
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}
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static inline void pnx833x_gpio_select_output(unsigned int pin)
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{
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if (pin < 32)
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SET_REG_BIT(PNX833X_PIO_DIR, pin);
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else
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SET_REG_BIT(PNX833X_PIO_DIR2, pin & 31);
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}
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/* Select GPIO or alternate function for a pin */
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static inline void pnx833x_gpio_select_function_io(unsigned int pin)
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{
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if (pin < 32)
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CLEAR_REG_BIT(PNX833X_PIO_SEL, pin);
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else
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CLEAR_REG_BIT(PNX833X_PIO_SEL2, pin & 31);
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}
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static inline void pnx833x_gpio_select_function_alt(unsigned int pin)
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{
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if (pin < 32)
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SET_REG_BIT(PNX833X_PIO_SEL, pin);
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else
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SET_REG_BIT(PNX833X_PIO_SEL2, pin & 31);
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}
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/* Read GPIO pin */
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static inline int pnx833x_gpio_read(unsigned int pin)
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{
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if (pin < 32)
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return (PNX833X_PIO_IN >> pin) & 1;
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else
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return (PNX833X_PIO_IN2 >> (pin & 31)) & 1;
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}
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/* Write GPIO pin */
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static inline void pnx833x_gpio_write(unsigned int val, unsigned int pin)
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{
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if (pin < 32) {
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if (val)
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SET_REG_BIT(PNX833X_PIO_OUT, pin);
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else
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CLEAR_REG_BIT(PNX833X_PIO_OUT, pin);
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} else {
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if (val)
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SET_REG_BIT(PNX833X_PIO_OUT2, pin & 31);
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else
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CLEAR_REG_BIT(PNX833X_PIO_OUT2, pin & 31);
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}
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}
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/* Configure GPIO interrupt */
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#define GPIO_INT_NONE 0
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#define GPIO_INT_LEVEL_LOW 1
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#define GPIO_INT_LEVEL_HIGH 2
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#define GPIO_INT_EDGE_RISING 3
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#define GPIO_INT_EDGE_FALLING 4
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#define GPIO_INT_EDGE_BOTH 5
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static inline void pnx833x_gpio_setup_irq(int when, unsigned int pin)
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{
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switch (when) {
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case GPIO_INT_LEVEL_LOW:
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CLEAR_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
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CLEAR_REG_BIT(PNX833X_PIO_INT_HI, pin);
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SET_REG_BIT(PNX833X_PIO_INT_LO, pin);
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break;
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case GPIO_INT_LEVEL_HIGH:
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CLEAR_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
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SET_REG_BIT(PNX833X_PIO_INT_HI, pin);
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CLEAR_REG_BIT(PNX833X_PIO_INT_LO, pin);
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break;
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case GPIO_INT_EDGE_RISING:
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SET_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
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SET_REG_BIT(PNX833X_PIO_INT_HI, pin);
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CLEAR_REG_BIT(PNX833X_PIO_INT_LO, pin);
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break;
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case GPIO_INT_EDGE_FALLING:
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SET_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
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CLEAR_REG_BIT(PNX833X_PIO_INT_HI, pin);
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SET_REG_BIT(PNX833X_PIO_INT_LO, pin);
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break;
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case GPIO_INT_EDGE_BOTH:
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SET_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
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SET_REG_BIT(PNX833X_PIO_INT_HI, pin);
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SET_REG_BIT(PNX833X_PIO_INT_LO, pin);
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break;
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default:
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CLEAR_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
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CLEAR_REG_BIT(PNX833X_PIO_INT_HI, pin);
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CLEAR_REG_BIT(PNX833X_PIO_INT_LO, pin);
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break;
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}
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}
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/* Enable/disable GPIO interrupt */
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static inline void pnx833x_gpio_enable_irq(unsigned int pin)
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{
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SET_REG_BIT(PNX833X_PIO_INT_ENABLE, pin);
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}
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static inline void pnx833x_gpio_disable_irq(unsigned int pin)
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{
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CLEAR_REG_BIT(PNX833X_PIO_INT_ENABLE, pin);
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}
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/* Clear GPIO interrupt request */
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static inline void pnx833x_gpio_clear_irq(unsigned int pin)
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{
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SET_REG_BIT(PNX833X_PIO_INT_CLEAR, pin);
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CLEAR_REG_BIT(PNX833X_PIO_INT_CLEAR, pin);
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}
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#endif
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@ -0,0 +1,126 @@
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/*
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* irq.h: IRQ mappings for PNX833X.
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*
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* Copyright 2008 NXP Semiconductors
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* Chris Steel <chris.steel@nxp.com>
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* Daniel Laird <daniel.j.laird@nxp.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __ASM_MIPS_MACH_PNX833X_IRQ_MAPPING_H
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#define __ASM_MIPS_MACH_PNX833X_IRQ_MAPPING_H
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/*
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* The "IRQ numbers" are completely virtual.
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*
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* In PNX8330/1, we have 48 interrupt lines, numbered from 1 to 48.
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* Let's use numbers 1..48 for PIC interrupts, number 0 for timer interrupt,
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* numbers 49..64 for (virtual) GPIO interrupts.
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*
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* In PNX8335, we have 57 interrupt lines, numbered from 1 to 57,
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* connected to PIC, which uses core hardware interrupt 2, and also
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* a timer interrupt through hardware interrupt 5.
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* Let's use numbers 1..64 for PIC interrupts, number 0 for timer interrupt,
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* numbers 65..80 for (virtual) GPIO interrupts.
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*
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*/
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#include <irq.h>
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#define PNX833X_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7)
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/* Interrupts supported by PIC */
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#define PNX833X_PIC_I2C0_INT (PNX833X_PIC_IRQ_BASE + 1)
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#define PNX833X_PIC_I2C1_INT (PNX833X_PIC_IRQ_BASE + 2)
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#define PNX833X_PIC_UART0_INT (PNX833X_PIC_IRQ_BASE + 3)
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#define PNX833X_PIC_UART1_INT (PNX833X_PIC_IRQ_BASE + 4)
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#define PNX833X_PIC_TS_IN0_DV_INT (PNX833X_PIC_IRQ_BASE + 5)
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#define PNX833X_PIC_TS_IN0_DMA_INT (PNX833X_PIC_IRQ_BASE + 6)
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#define PNX833X_PIC_GPIO_INT (PNX833X_PIC_IRQ_BASE + 7)
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#define PNX833X_PIC_AUDIO_DEC_INT (PNX833X_PIC_IRQ_BASE + 8)
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#define PNX833X_PIC_VIDEO_DEC_INT (PNX833X_PIC_IRQ_BASE + 9)
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#define PNX833X_PIC_CONFIG_INT (PNX833X_PIC_IRQ_BASE + 10)
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#define PNX833X_PIC_AOI_INT (PNX833X_PIC_IRQ_BASE + 11)
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#define PNX833X_PIC_SYNC_INT (PNX833X_PIC_IRQ_BASE + 12)
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#define PNX8330_PIC_SPU_INT (PNX833X_PIC_IRQ_BASE + 13)
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#define PNX8335_PIC_SATA_INT (PNX833X_PIC_IRQ_BASE + 13)
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#define PNX833X_PIC_OSD_INT (PNX833X_PIC_IRQ_BASE + 14)
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#define PNX833X_PIC_DISP1_INT (PNX833X_PIC_IRQ_BASE + 15)
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#define PNX833X_PIC_DEINTERLACER_INT (PNX833X_PIC_IRQ_BASE + 16)
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#define PNX833X_PIC_DISPLAY2_INT (PNX833X_PIC_IRQ_BASE + 17)
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#define PNX833X_PIC_VC_INT (PNX833X_PIC_IRQ_BASE + 18)
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#define PNX833X_PIC_SC_INT (PNX833X_PIC_IRQ_BASE + 19)
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#define PNX833X_PIC_IDE_INT (PNX833X_PIC_IRQ_BASE + 20)
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#define PNX833X_PIC_IDE_DMA_INT (PNX833X_PIC_IRQ_BASE + 21)
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#define PNX833X_PIC_TS_IN1_DV_INT (PNX833X_PIC_IRQ_BASE + 22)
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#define PNX833X_PIC_TS_IN1_DMA_INT (PNX833X_PIC_IRQ_BASE + 23)
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#define PNX833X_PIC_SGDX_DMA_INT (PNX833X_PIC_IRQ_BASE + 24)
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#define PNX833X_PIC_TS_OUT_INT (PNX833X_PIC_IRQ_BASE + 25)
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#define PNX833X_PIC_IR_INT (PNX833X_PIC_IRQ_BASE + 26)
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#define PNX833X_PIC_VMSP1_INT (PNX833X_PIC_IRQ_BASE + 27)
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#define PNX833X_PIC_VMSP2_INT (PNX833X_PIC_IRQ_BASE + 28)
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#define PNX833X_PIC_PIBC_INT (PNX833X_PIC_IRQ_BASE + 29)
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#define PNX833X_PIC_TS_IN0_TRD_INT (PNX833X_PIC_IRQ_BASE + 30)
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#define PNX833X_PIC_SGDX_TPD_INT (PNX833X_PIC_IRQ_BASE + 31)
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#define PNX833X_PIC_USB_INT (PNX833X_PIC_IRQ_BASE + 32)
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#define PNX833X_PIC_TS_IN1_TRD_INT (PNX833X_PIC_IRQ_BASE + 33)
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#define PNX833X_PIC_CLOCK_INT (PNX833X_PIC_IRQ_BASE + 34)
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#define PNX833X_PIC_SGDX_PARSER_INT (PNX833X_PIC_IRQ_BASE + 35)
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#define PNX833X_PIC_VMSP_DMA_INT (PNX833X_PIC_IRQ_BASE + 36)
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#if defined(CONFIG_SOC_PNX8335)
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#define PNX8335_PIC_MIU_INT (PNX833X_PIC_IRQ_BASE + 37)
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#define PNX8335_PIC_AVCHIP_IRQ_INT (PNX833X_PIC_IRQ_BASE + 38)
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#define PNX8335_PIC_SYNC_HD_INT (PNX833X_PIC_IRQ_BASE + 39)
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#define PNX8335_PIC_DISP_HD_INT (PNX833X_PIC_IRQ_BASE + 40)
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#define PNX8335_PIC_DISP_SCALER_INT (PNX833X_PIC_IRQ_BASE + 41)
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#define PNX8335_PIC_OSD_HD1_INT (PNX833X_PIC_IRQ_BASE + 42)
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#define PNX8335_PIC_DTL_WRITER_Y_INT (PNX833X_PIC_IRQ_BASE + 43)
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#define PNX8335_PIC_DTL_WRITER_C_INT (PNX833X_PIC_IRQ_BASE + 44)
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#define PNX8335_PIC_DTL_EMULATOR_Y_IR_INT (PNX833X_PIC_IRQ_BASE + 45)
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#define PNX8335_PIC_DTL_EMULATOR_C_IR_INT (PNX833X_PIC_IRQ_BASE + 46)
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#define PNX8335_PIC_DENC_TTX_INT (PNX833X_PIC_IRQ_BASE + 47)
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#define PNX8335_PIC_MMI_SIF0_INT (PNX833X_PIC_IRQ_BASE + 48)
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#define PNX8335_PIC_MMI_SIF1_INT (PNX833X_PIC_IRQ_BASE + 49)
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#define PNX8335_PIC_MMI_CDMMU_INT (PNX833X_PIC_IRQ_BASE + 50)
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#define PNX8335_PIC_PIBCS_INT (PNX833X_PIC_IRQ_BASE + 51)
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#define PNX8335_PIC_ETHERNET_INT (PNX833X_PIC_IRQ_BASE + 52)
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#define PNX8335_PIC_VMSP1_0_INT (PNX833X_PIC_IRQ_BASE + 53)
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#define PNX8335_PIC_VMSP1_1_INT (PNX833X_PIC_IRQ_BASE + 54)
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#define PNX8335_PIC_VMSP1_DMA_INT (PNX833X_PIC_IRQ_BASE + 55)
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#define PNX8335_PIC_TDGR_DE_INT (PNX833X_PIC_IRQ_BASE + 56)
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#define PNX8335_PIC_IR1_IRQ_INT (PNX833X_PIC_IRQ_BASE + 57)
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#endif
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/* GPIO interrupts */
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#define PNX833X_GPIO_0_INT (PNX833X_GPIO_IRQ_BASE + 0)
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#define PNX833X_GPIO_1_INT (PNX833X_GPIO_IRQ_BASE + 1)
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#define PNX833X_GPIO_2_INT (PNX833X_GPIO_IRQ_BASE + 2)
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#define PNX833X_GPIO_3_INT (PNX833X_GPIO_IRQ_BASE + 3)
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#define PNX833X_GPIO_4_INT (PNX833X_GPIO_IRQ_BASE + 4)
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#define PNX833X_GPIO_5_INT (PNX833X_GPIO_IRQ_BASE + 5)
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#define PNX833X_GPIO_6_INT (PNX833X_GPIO_IRQ_BASE + 6)
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#define PNX833X_GPIO_7_INT (PNX833X_GPIO_IRQ_BASE + 7)
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#define PNX833X_GPIO_8_INT (PNX833X_GPIO_IRQ_BASE + 8)
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#define PNX833X_GPIO_9_INT (PNX833X_GPIO_IRQ_BASE + 9)
|
||||
#define PNX833X_GPIO_10_INT (PNX833X_GPIO_IRQ_BASE + 10)
|
||||
#define PNX833X_GPIO_11_INT (PNX833X_GPIO_IRQ_BASE + 11)
|
||||
#define PNX833X_GPIO_12_INT (PNX833X_GPIO_IRQ_BASE + 12)
|
||||
#define PNX833X_GPIO_13_INT (PNX833X_GPIO_IRQ_BASE + 13)
|
||||
#define PNX833X_GPIO_14_INT (PNX833X_GPIO_IRQ_BASE + 14)
|
||||
#define PNX833X_GPIO_15_INT (PNX833X_GPIO_IRQ_BASE + 15)
|
||||
|
||||
#endif
|
||||
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
/*
|
||||
* irq.h: IRQ mappings for PNX833X.
|
||||
*
|
||||
* Copyright 2008 NXP Semiconductors
|
||||
* Chris Steel <chris.steel@nxp.com>
|
||||
* Daniel Laird <daniel.j.laird@nxp.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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#ifndef __ASM_MIPS_MACH_PNX833X_IRQ_H
|
||||
#define __ASM_MIPS_MACH_PNX833X_IRQ_H
|
||||
/*
|
||||
* The "IRQ numbers" are completely virtual.
|
||||
*
|
||||
* In PNX8330/1, we have 48 interrupt lines, numbered from 1 to 48.
|
||||
* Let's use numbers 1..48 for PIC interrupts, number 0 for timer interrupt,
|
||||
* numbers 49..64 for (virtual) GPIO interrupts.
|
||||
*
|
||||
* In PNX8335, we have 57 interrupt lines, numbered from 1 to 57,
|
||||
* connected to PIC, which uses core hardware interrupt 2, and also
|
||||
* a timer interrupt through hardware interrupt 5.
|
||||
* Let's use numbers 1..64 for PIC interrupts, number 0 for timer interrupt,
|
||||
* numbers 65..80 for (virtual) GPIO interrupts.
|
||||
*
|
||||
*/
|
||||
#if defined(CONFIG_SOC_PNX8335)
|
||||
#define PNX833X_PIC_NUM_IRQ 58
|
||||
#else
|
||||
#define PNX833X_PIC_NUM_IRQ 37
|
||||
#endif
|
||||
|
||||
#define MIPS_CPU_NUM_IRQ 8
|
||||
#define PNX833X_GPIO_NUM_IRQ 16
|
||||
|
||||
#define MIPS_CPU_IRQ_BASE 0
|
||||
#define PNX833X_PIC_IRQ_BASE (MIPS_CPU_IRQ_BASE + MIPS_CPU_NUM_IRQ)
|
||||
#define PNX833X_GPIO_IRQ_BASE (PNX833X_PIC_IRQ_BASE + PNX833X_PIC_NUM_IRQ)
|
||||
#define NR_IRQS (MIPS_CPU_NUM_IRQ + PNX833X_PIC_NUM_IRQ + PNX833X_GPIO_NUM_IRQ)
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,202 @@
|
|||
/*
|
||||
* pnx833x.h: Register mappings for PNX833X.
|
||||
*
|
||||
* Copyright 2008 NXP Semiconductors
|
||||
* Chris Steel <chris.steel@nxp.com>
|
||||
* Daniel Laird <daniel.j.laird@nxp.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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
#ifndef __ASM_MIPS_MACH_PNX833X_PNX833X_H
|
||||
#define __ASM_MIPS_MACH_PNX833X_PNX833X_H
|
||||
|
||||
/* All regs are accessed in KSEG1 */
|
||||
#define PNX833X_BASE (0xa0000000ul + 0x17E00000ul)
|
||||
|
||||
#define PNX833X_REG(offs) (*((volatile unsigned long *)(PNX833X_BASE + offs)))
|
||||
|
||||
/* Registers are named exactly as in PNX833X docs, just with PNX833X_ prefix */
|
||||
|
||||
/* Read access to multibit fields */
|
||||
#define PNX833X_BIT(val, reg, field) ((val) & PNX833X_##reg##_##field)
|
||||
#define PNX833X_REGBIT(reg, field) PNX833X_BIT(PNX833X_##reg, reg, field)
|
||||
|
||||
/* Use PNX833X_FIELD to extract a field from val */
|
||||
#define PNX_FIELD(cpu, val, reg, field) \
|
||||
(((val) & PNX##cpu##_##reg##_##field##_MASK) >> \
|
||||
PNX##cpu##_##reg##_##field##_SHIFT)
|
||||
#define PNX833X_FIELD(val, reg, field) PNX_FIELD(833X, val, reg, field)
|
||||
#define PNX8330_FIELD(val, reg, field) PNX_FIELD(8330, val, reg, field)
|
||||
#define PNX8335_FIELD(val, reg, field) PNX_FIELD(8335, val, reg, field)
|
||||
|
||||
/* Use PNX833X_REGFIELD to extract a field from a register */
|
||||
#define PNX833X_REGFIELD(reg, field) PNX833X_FIELD(PNX833X_##reg, reg, field)
|
||||
#define PNX8330_REGFIELD(reg, field) PNX8330_FIELD(PNX8330_##reg, reg, field)
|
||||
#define PNX8335_REGFIELD(reg, field) PNX8335_FIELD(PNX8335_##reg, reg, field)
|
||||
|
||||
|
||||
#define PNX_WRITEFIELD(cpu, val, reg, field) \
|
||||
(PNX##cpu##_##reg = (PNX##cpu##_##reg & ~(PNX##cpu##_##reg##_##field##_MASK)) | \
|
||||
((val) << PNX##cpu##_##reg##_##field##_SHIFT))
|
||||
#define PNX833X_WRITEFIELD(val, reg, field) \
|
||||
PNX_WRITEFIELD(833X, val, reg, field)
|
||||
#define PNX8330_WRITEFIELD(val, reg, field) \
|
||||
PNX_WRITEFIELD(8330, val, reg, field)
|
||||
#define PNX8335_WRITEFIELD(val, reg, field) \
|
||||
PNX_WRITEFIELD(8335, val, reg, field)
|
||||
|
||||
|
||||
/* Macros to detect CPU type */
|
||||
|
||||
#define PNX833X_CONFIG_MODULE_ID PNX833X_REG(0x7FFC)
|
||||
#define PNX833X_CONFIG_MODULE_ID_MAJREV_MASK 0x0000f000
|
||||
#define PNX833X_CONFIG_MODULE_ID_MAJREV_SHIFT 12
|
||||
#define PNX8330_CONFIG_MODULE_MAJREV 4
|
||||
#define PNX8335_CONFIG_MODULE_MAJREV 5
|
||||
#define CPU_IS_PNX8330 (PNX833X_REGFIELD(CONFIG_MODULE_ID, MAJREV) == \
|
||||
PNX8330_CONFIG_MODULE_MAJREV)
|
||||
#define CPU_IS_PNX8335 (PNX833X_REGFIELD(CONFIG_MODULE_ID, MAJREV) == \
|
||||
PNX8335_CONFIG_MODULE_MAJREV)
|
||||
|
||||
|
||||
|
||||
#define PNX833X_RESET_CONTROL PNX833X_REG(0x8004)
|
||||
#define PNX833X_RESET_CONTROL_2 PNX833X_REG(0x8014)
|
||||
|
||||
#define PNX833X_PIC_REG(offs) PNX833X_REG(0x01000 + (offs))
|
||||
#define PNX833X_PIC_INT_PRIORITY PNX833X_PIC_REG(0x0)
|
||||
#define PNX833X_PIC_INT_SRC PNX833X_PIC_REG(0x4)
|
||||
#define PNX833X_PIC_INT_SRC_INT_SRC_MASK 0x00000FF8ul /* bits 11:3 */
|
||||
#define PNX833X_PIC_INT_SRC_INT_SRC_SHIFT 3
|
||||
#define PNX833X_PIC_INT_REG(irq) PNX833X_PIC_REG(0x10 + 4*(irq))
|
||||
|
||||
#define PNX833X_CLOCK_CPUCP_CTL PNX833X_REG(0x9228)
|
||||
#define PNX833X_CLOCK_CPUCP_CTL_EXIT_RESET 0x00000002ul /* bit 1 */
|
||||
#define PNX833X_CLOCK_CPUCP_CTL_DIV_CLOCK_MASK 0x00000018ul /* bits 4:3 */
|
||||
#define PNX833X_CLOCK_CPUCP_CTL_DIV_CLOCK_SHIFT 3
|
||||
|
||||
#define PNX8335_CLOCK_PLL_CPU_CTL PNX833X_REG(0x9020)
|
||||
#define PNX8335_CLOCK_PLL_CPU_CTL_FREQ_MASK 0x1f
|
||||
#define PNX8335_CLOCK_PLL_CPU_CTL_FREQ_SHIFT 0
|
||||
|
||||
#define PNX833X_CONFIG_MUX PNX833X_REG(0x7004)
|
||||
#define PNX833X_CONFIG_MUX_IDE_MUX 0x00000080 /* bit 7 */
|
||||
|
||||
#define PNX8330_CONFIG_POLYFUSE_7 PNX833X_REG(0x7040)
|
||||
#define PNX8330_CONFIG_POLYFUSE_7_BOOT_MODE_MASK 0x00180000
|
||||
#define PNX8330_CONFIG_POLYFUSE_7_BOOT_MODE_SHIFT 19
|
||||
|
||||
#define PNX833X_PIO_IN PNX833X_REG(0xF000)
|
||||
#define PNX833X_PIO_OUT PNX833X_REG(0xF004)
|
||||
#define PNX833X_PIO_DIR PNX833X_REG(0xF008)
|
||||
#define PNX833X_PIO_SEL PNX833X_REG(0xF014)
|
||||
#define PNX833X_PIO_INT_EDGE PNX833X_REG(0xF020)
|
||||
#define PNX833X_PIO_INT_HI PNX833X_REG(0xF024)
|
||||
#define PNX833X_PIO_INT_LO PNX833X_REG(0xF028)
|
||||
#define PNX833X_PIO_INT_STATUS PNX833X_REG(0xFFE0)
|
||||
#define PNX833X_PIO_INT_ENABLE PNX833X_REG(0xFFE4)
|
||||
#define PNX833X_PIO_INT_CLEAR PNX833X_REG(0xFFE8)
|
||||
#define PNX833X_PIO_IN2 PNX833X_REG(0xF05C)
|
||||
#define PNX833X_PIO_OUT2 PNX833X_REG(0xF060)
|
||||
#define PNX833X_PIO_DIR2 PNX833X_REG(0xF064)
|
||||
#define PNX833X_PIO_SEL2 PNX833X_REG(0xF068)
|
||||
|
||||
#define PNX833X_UART0_PORTS_START (PNX833X_BASE + 0xB000)
|
||||
#define PNX833X_UART0_PORTS_END (PNX833X_BASE + 0xBFFF)
|
||||
#define PNX833X_UART1_PORTS_START (PNX833X_BASE + 0xC000)
|
||||
#define PNX833X_UART1_PORTS_END (PNX833X_BASE + 0xCFFF)
|
||||
|
||||
#define PNX833X_USB_PORTS_START (PNX833X_BASE + 0x19000)
|
||||
#define PNX833X_USB_PORTS_END (PNX833X_BASE + 0x19FFF)
|
||||
|
||||
#define PNX833X_CONFIG_USB PNX833X_REG(0x7008)
|
||||
|
||||
#define PNX833X_I2C0_PORTS_START (PNX833X_BASE + 0xD000)
|
||||
#define PNX833X_I2C0_PORTS_END (PNX833X_BASE + 0xDFFF)
|
||||
#define PNX833X_I2C1_PORTS_START (PNX833X_BASE + 0xE000)
|
||||
#define PNX833X_I2C1_PORTS_END (PNX833X_BASE + 0xEFFF)
|
||||
|
||||
#define PNX833X_IDE_PORTS_START (PNX833X_BASE + 0x1A000)
|
||||
#define PNX833X_IDE_PORTS_END (PNX833X_BASE + 0x1AFFF)
|
||||
#define PNX833X_IDE_MODULE_ID PNX833X_REG(0x1AFFC)
|
||||
|
||||
#define PNX833X_IDE_MODULE_ID_MODULE_ID_MASK 0xFFFF0000
|
||||
#define PNX833X_IDE_MODULE_ID_MODULE_ID_SHIFT 16
|
||||
#define PNX833X_IDE_MODULE_ID_VALUE 0xA009
|
||||
|
||||
|
||||
#define PNX833X_MIU_SEL0 PNX833X_REG(0x2004)
|
||||
#define PNX833X_MIU_SEL0_TIMING PNX833X_REG(0x2008)
|
||||
#define PNX833X_MIU_SEL1 PNX833X_REG(0x200C)
|
||||
#define PNX833X_MIU_SEL1_TIMING PNX833X_REG(0x2010)
|
||||
#define PNX833X_MIU_SEL2 PNX833X_REG(0x2014)
|
||||
#define PNX833X_MIU_SEL2_TIMING PNX833X_REG(0x2018)
|
||||
#define PNX833X_MIU_SEL3 PNX833X_REG(0x201C)
|
||||
#define PNX833X_MIU_SEL3_TIMING PNX833X_REG(0x2020)
|
||||
|
||||
#define PNX833X_MIU_SEL0_SPI_MODE_ENABLE_MASK (1 << 14)
|
||||
#define PNX833X_MIU_SEL0_SPI_MODE_ENABLE_SHIFT 14
|
||||
|
||||
#define PNX833X_MIU_SEL0_BURST_MODE_ENABLE_MASK (1 << 7)
|
||||
#define PNX833X_MIU_SEL0_BURST_MODE_ENABLE_SHIFT 7
|
||||
|
||||
#define PNX833X_MIU_SEL0_BURST_PAGE_LEN_MASK (0xF << 9)
|
||||
#define PNX833X_MIU_SEL0_BURST_PAGE_LEN_SHIFT 9
|
||||
|
||||
#define PNX833X_MIU_CONFIG_SPI PNX833X_REG(0x2000)
|
||||
|
||||
#define PNX833X_MIU_CONFIG_SPI_OPCODE_MASK (0xFF << 3)
|
||||
#define PNX833X_MIU_CONFIG_SPI_OPCODE_SHIFT 3
|
||||
|
||||
#define PNX833X_MIU_CONFIG_SPI_DATA_ENABLE_MASK (1 << 2)
|
||||
#define PNX833X_MIU_CONFIG_SPI_DATA_ENABLE_SHIFT 2
|
||||
|
||||
#define PNX833X_MIU_CONFIG_SPI_ADDR_ENABLE_MASK (1 << 1)
|
||||
#define PNX833X_MIU_CONFIG_SPI_ADDR_ENABLE_SHIFT 1
|
||||
|
||||
#define PNX833X_MIU_CONFIG_SPI_SYNC_MASK (1 << 0)
|
||||
#define PNX833X_MIU_CONFIG_SPI_SYNC_SHIFT 0
|
||||
|
||||
#define PNX833X_WRITE_CONFIG_SPI(opcode, data_enable, addr_enable, sync) \
|
||||
(PNX833X_MIU_CONFIG_SPI = \
|
||||
((opcode) << PNX833X_MIU_CONFIG_SPI_OPCODE_SHIFT) | \
|
||||
((data_enable) << PNX833X_MIU_CONFIG_SPI_DATA_ENABLE_SHIFT) | \
|
||||
((addr_enable) << PNX833X_MIU_CONFIG_SPI_ADDR_ENABLE_SHIFT) | \
|
||||
((sync) << PNX833X_MIU_CONFIG_SPI_SYNC_SHIFT))
|
||||
|
||||
#define PNX8335_IP3902_PORTS_START (PNX833X_BASE + 0x2F000)
|
||||
#define PNX8335_IP3902_PORTS_END (PNX833X_BASE + 0x2FFFF)
|
||||
#define PNX8335_IP3902_MODULE_ID PNX833X_REG(0x2FFFC)
|
||||
|
||||
#define PNX8335_IP3902_MODULE_ID_MODULE_ID_MASK 0xFFFF0000
|
||||
#define PNX8335_IP3902_MODULE_ID_MODULE_ID_SHIFT 16
|
||||
#define PNX8335_IP3902_MODULE_ID_VALUE 0x3902
|
||||
|
||||
/* I/O location(gets remapped)*/
|
||||
#define PNX8335_NAND_BASE 0x18000000
|
||||
/* I/O location with CLE high */
|
||||
#define PNX8335_NAND_CLE_MASK 0x00100000
|
||||
/* I/O location with ALE high */
|
||||
#define PNX8335_NAND_ALE_MASK 0x00010000
|
||||
|
||||
#define PNX8335_SATA_PORTS_START (PNX833X_BASE + 0x2E000)
|
||||
#define PNX8335_SATA_PORTS_END (PNX833X_BASE + 0x2EFFF)
|
||||
#define PNX8335_SATA_MODULE_ID PNX833X_REG(0x2EFFC)
|
||||
|
||||
#define PNX8335_SATA_MODULE_ID_MODULE_ID_MASK 0xFFFF0000
|
||||
#define PNX8335_SATA_MODULE_ID_MODULE_ID_SHIFT 16
|
||||
#define PNX8335_SATA_MODULE_ID_VALUE 0xA099
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
/*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file "COPYING" in the main directory of this archive
|
||||
* for more details.
|
||||
*
|
||||
* Copyright (C) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org>
|
||||
*/
|
||||
#ifndef __ASM_MIPS_MACH_PNX833X_WAR_H
|
||||
#define __ASM_MIPS_MACH_PNX833X_WAR_H
|
||||
|
||||
#define R4600_V1_INDEX_ICACHEOP_WAR 0
|
||||
#define R4600_V1_HIT_CACHEOP_WAR 0
|
||||
#define R4600_V2_HIT_CACHEOP_WAR 0
|
||||
#define R5432_CP0_INTERRUPT_WAR 0
|
||||
#define BCM1250_M3_WAR 0
|
||||
#define SIBYTE_1956_WAR 0
|
||||
#define MIPS4K_ICACHE_REFILL_WAR 0
|
||||
#define MIPS_CACHE_SYNC_WAR 0
|
||||
#define TX49XX_ICACHE_INDEX_INV_WAR 0
|
||||
#define RM9000_CDEX_SMP_WAR 0
|
||||
#define ICACHE_REFILLS_WORKAROUND_WAR 0
|
||||
#define R10000_LLSC_WAR 0
|
||||
#define MIPS34K_MISSED_ITLB_WAR 0
|
||||
|
||||
#endif /* __ASM_MIPS_MACH_PNX8550_WAR_H */
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
obj-y := interrupts.o platform.o prom.o setup.o reset.o
|
||||
|
||||
EXTRA_CFLAGS += -Werror
|
||||
|
|
@ -0,0 +1,380 @@
|
|||
/*
|
||||
* interrupts.c: Interrupt mappings for PNX833X.
|
||||
*
|
||||
* Copyright 2008 NXP Semiconductors
|
||||
* Chris Steel <chris.steel@nxp.com>
|
||||
* Daniel Laird <daniel.j.laird@nxp.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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/irq.h>
|
||||
#include <linux/hardirq.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <asm/mipsregs.h>
|
||||
#include <asm/irq_cpu.h>
|
||||
#include <irq.h>
|
||||
#include <irq-mapping.h>
|
||||
#include <gpio.h>
|
||||
|
||||
static int mips_cpu_timer_irq;
|
||||
|
||||
static const unsigned int irq_prio[PNX833X_PIC_NUM_IRQ] =
|
||||
{
|
||||
0, /* unused */
|
||||
4, /* PNX833X_PIC_I2C0_INT 1 */
|
||||
4, /* PNX833X_PIC_I2C1_INT 2 */
|
||||
1, /* PNX833X_PIC_UART0_INT 3 */
|
||||
1, /* PNX833X_PIC_UART1_INT 4 */
|
||||
6, /* PNX833X_PIC_TS_IN0_DV_INT 5 */
|
||||
6, /* PNX833X_PIC_TS_IN0_DMA_INT 6 */
|
||||
7, /* PNX833X_PIC_GPIO_INT 7 */
|
||||
4, /* PNX833X_PIC_AUDIO_DEC_INT 8 */
|
||||
5, /* PNX833X_PIC_VIDEO_DEC_INT 9 */
|
||||
4, /* PNX833X_PIC_CONFIG_INT 10 */
|
||||
4, /* PNX833X_PIC_AOI_INT 11 */
|
||||
9, /* PNX833X_PIC_SYNC_INT 12 */
|
||||
9, /* PNX8335_PIC_SATA_INT 13 */
|
||||
4, /* PNX833X_PIC_OSD_INT 14 */
|
||||
9, /* PNX833X_PIC_DISP1_INT 15 */
|
||||
4, /* PNX833X_PIC_DEINTERLACER_INT 16 */
|
||||
9, /* PNX833X_PIC_DISPLAY2_INT 17 */
|
||||
4, /* PNX833X_PIC_VC_INT 18 */
|
||||
4, /* PNX833X_PIC_SC_INT 19 */
|
||||
9, /* PNX833X_PIC_IDE_INT 20 */
|
||||
9, /* PNX833X_PIC_IDE_DMA_INT 21 */
|
||||
6, /* PNX833X_PIC_TS_IN1_DV_INT 22 */
|
||||
6, /* PNX833X_PIC_TS_IN1_DMA_INT 23 */
|
||||
4, /* PNX833X_PIC_SGDX_DMA_INT 24 */
|
||||
4, /* PNX833X_PIC_TS_OUT_INT 25 */
|
||||
4, /* PNX833X_PIC_IR_INT 26 */
|
||||
3, /* PNX833X_PIC_VMSP1_INT 27 */
|
||||
3, /* PNX833X_PIC_VMSP2_INT 28 */
|
||||
4, /* PNX833X_PIC_PIBC_INT 29 */
|
||||
4, /* PNX833X_PIC_TS_IN0_TRD_INT 30 */
|
||||
4, /* PNX833X_PIC_SGDX_TPD_INT 31 */
|
||||
5, /* PNX833X_PIC_USB_INT 32 */
|
||||
4, /* PNX833X_PIC_TS_IN1_TRD_INT 33 */
|
||||
4, /* PNX833X_PIC_CLOCK_INT 34 */
|
||||
4, /* PNX833X_PIC_SGDX_PARSER_INT 35 */
|
||||
4, /* PNX833X_PIC_VMSP_DMA_INT 36 */
|
||||
#if defined(CONFIG_SOC_PNX8335)
|
||||
4, /* PNX8335_PIC_MIU_INT 37 */
|
||||
4, /* PNX8335_PIC_AVCHIP_IRQ_INT 38 */
|
||||
9, /* PNX8335_PIC_SYNC_HD_INT 39 */
|
||||
9, /* PNX8335_PIC_DISP_HD_INT 40 */
|
||||
9, /* PNX8335_PIC_DISP_SCALER_INT 41 */
|
||||
4, /* PNX8335_PIC_OSD_HD1_INT 42 */
|
||||
4, /* PNX8335_PIC_DTL_WRITER_Y_INT 43 */
|
||||
4, /* PNX8335_PIC_DTL_WRITER_C_INT 44 */
|
||||
4, /* PNX8335_PIC_DTL_EMULATOR_Y_IR_INT 45 */
|
||||
4, /* PNX8335_PIC_DTL_EMULATOR_C_IR_INT 46 */
|
||||
4, /* PNX8335_PIC_DENC_TTX_INT 47 */
|
||||
4, /* PNX8335_PIC_MMI_SIF0_INT 48 */
|
||||
4, /* PNX8335_PIC_MMI_SIF1_INT 49 */
|
||||
4, /* PNX8335_PIC_MMI_CDMMU_INT 50 */
|
||||
4, /* PNX8335_PIC_PIBCS_INT 51 */
|
||||
12, /* PNX8335_PIC_ETHERNET_INT 52 */
|
||||
3, /* PNX8335_PIC_VMSP1_0_INT 53 */
|
||||
3, /* PNX8335_PIC_VMSP1_1_INT 54 */
|
||||
4, /* PNX8335_PIC_VMSP1_DMA_INT 55 */
|
||||
4, /* PNX8335_PIC_TDGR_DE_INT 56 */
|
||||
4, /* PNX8335_PIC_IR1_IRQ_INT 57 */
|
||||
#endif
|
||||
};
|
||||
|
||||
static void pnx833x_timer_dispatch(void)
|
||||
{
|
||||
do_IRQ(mips_cpu_timer_irq);
|
||||
}
|
||||
|
||||
static void pic_dispatch(void)
|
||||
{
|
||||
unsigned int irq = PNX833X_REGFIELD(PIC_INT_SRC, INT_SRC);
|
||||
|
||||
if ((irq >= 1) && (irq < (PNX833X_PIC_NUM_IRQ))) {
|
||||
unsigned long priority = PNX833X_PIC_INT_PRIORITY;
|
||||
PNX833X_PIC_INT_PRIORITY = irq_prio[irq];
|
||||
|
||||
if (irq == PNX833X_PIC_GPIO_INT) {
|
||||
unsigned long mask = PNX833X_PIO_INT_STATUS & PNX833X_PIO_INT_ENABLE;
|
||||
int pin;
|
||||
while ((pin = ffs(mask & 0xffff))) {
|
||||
pin -= 1;
|
||||
do_IRQ(PNX833X_GPIO_IRQ_BASE + pin);
|
||||
mask &= ~(1 << pin);
|
||||
}
|
||||
} else {
|
||||
do_IRQ(irq + PNX833X_PIC_IRQ_BASE);
|
||||
}
|
||||
|
||||
PNX833X_PIC_INT_PRIORITY = priority;
|
||||
} else {
|
||||
printk(KERN_ERR "plat_irq_dispatch: unexpected irq %u\n", irq);
|
||||
}
|
||||
}
|
||||
|
||||
asmlinkage void plat_irq_dispatch(void)
|
||||
{
|
||||
unsigned int pending = read_c0_status() & read_c0_cause();
|
||||
|
||||
if (pending & STATUSF_IP4)
|
||||
pic_dispatch();
|
||||
else if (pending & STATUSF_IP7)
|
||||
do_IRQ(PNX833X_TIMER_IRQ);
|
||||
else
|
||||
spurious_interrupt();
|
||||
}
|
||||
|
||||
static inline void pnx833x_hard_enable_pic_irq(unsigned int irq)
|
||||
{
|
||||
/* Currently we do this by setting IRQ priority to 1.
|
||||
If priority support is being implemented, 1 should be repalced
|
||||
by a better value. */
|
||||
PNX833X_PIC_INT_REG(irq) = irq_prio[irq];
|
||||
}
|
||||
|
||||
static inline void pnx833x_hard_disable_pic_irq(unsigned int irq)
|
||||
{
|
||||
/* Disable IRQ by writing setting it's priority to 0 */
|
||||
PNX833X_PIC_INT_REG(irq) = 0;
|
||||
}
|
||||
|
||||
static int irqflags[PNX833X_PIC_NUM_IRQ]; /* initialized by zeroes */
|
||||
#define IRQFLAG_STARTED 1
|
||||
#define IRQFLAG_DISABLED 2
|
||||
|
||||
static DEFINE_SPINLOCK(pnx833x_irq_lock);
|
||||
|
||||
static unsigned int pnx833x_startup_pic_irq(unsigned int irq)
|
||||
{
|
||||
unsigned long flags;
|
||||
unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE;
|
||||
|
||||
spin_lock_irqsave(&pnx833x_irq_lock, flags);
|
||||
|
||||
irqflags[pic_irq] = IRQFLAG_STARTED; /* started, not disabled */
|
||||
pnx833x_hard_enable_pic_irq(pic_irq);
|
||||
|
||||
spin_unlock_irqrestore(&pnx833x_irq_lock, flags);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void pnx833x_shutdown_pic_irq(unsigned int irq)
|
||||
{
|
||||
unsigned long flags;
|
||||
unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE;
|
||||
|
||||
spin_lock_irqsave(&pnx833x_irq_lock, flags);
|
||||
|
||||
irqflags[pic_irq] = 0; /* not started */
|
||||
pnx833x_hard_disable_pic_irq(pic_irq);
|
||||
|
||||
spin_unlock_irqrestore(&pnx833x_irq_lock, flags);
|
||||
}
|
||||
|
||||
static void pnx833x_enable_pic_irq(unsigned int irq)
|
||||
{
|
||||
unsigned long flags;
|
||||
unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE;
|
||||
|
||||
spin_lock_irqsave(&pnx833x_irq_lock, flags);
|
||||
|
||||
irqflags[pic_irq] &= ~IRQFLAG_DISABLED;
|
||||
if (irqflags[pic_irq] == IRQFLAG_STARTED)
|
||||
pnx833x_hard_enable_pic_irq(pic_irq);
|
||||
|
||||
spin_unlock_irqrestore(&pnx833x_irq_lock, flags);
|
||||
}
|
||||
|
||||
static void pnx833x_disable_pic_irq(unsigned int irq)
|
||||
{
|
||||
unsigned long flags;
|
||||
unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE;
|
||||
|
||||
spin_lock_irqsave(&pnx833x_irq_lock, flags);
|
||||
|
||||
irqflags[pic_irq] |= IRQFLAG_DISABLED;
|
||||
pnx833x_hard_disable_pic_irq(pic_irq);
|
||||
|
||||
spin_unlock_irqrestore(&pnx833x_irq_lock, flags);
|
||||
}
|
||||
|
||||
static void pnx833x_ack_pic_irq(unsigned int irq)
|
||||
{
|
||||
}
|
||||
|
||||
static void pnx833x_end_pic_irq(unsigned int irq)
|
||||
{
|
||||
}
|
||||
|
||||
static DEFINE_SPINLOCK(pnx833x_gpio_pnx833x_irq_lock);
|
||||
|
||||
static unsigned int pnx833x_startup_gpio_irq(unsigned int irq)
|
||||
{
|
||||
int pin = irq - PNX833X_GPIO_IRQ_BASE;
|
||||
unsigned long flags;
|
||||
spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags);
|
||||
pnx833x_gpio_enable_irq(pin);
|
||||
spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void pnx833x_enable_gpio_irq(unsigned int irq)
|
||||
{
|
||||
int pin = irq - PNX833X_GPIO_IRQ_BASE;
|
||||
unsigned long flags;
|
||||
spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags);
|
||||
pnx833x_gpio_enable_irq(pin);
|
||||
spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags);
|
||||
}
|
||||
|
||||
static void pnx833x_disable_gpio_irq(unsigned int irq)
|
||||
{
|
||||
int pin = irq - PNX833X_GPIO_IRQ_BASE;
|
||||
unsigned long flags;
|
||||
spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags);
|
||||
pnx833x_gpio_disable_irq(pin);
|
||||
spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags);
|
||||
}
|
||||
|
||||
static void pnx833x_ack_gpio_irq(unsigned int irq)
|
||||
{
|
||||
}
|
||||
|
||||
static void pnx833x_end_gpio_irq(unsigned int irq)
|
||||
{
|
||||
int pin = irq - PNX833X_GPIO_IRQ_BASE;
|
||||
unsigned long flags;
|
||||
spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags);
|
||||
pnx833x_gpio_clear_irq(pin);
|
||||
spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags);
|
||||
}
|
||||
|
||||
static int pnx833x_set_type_gpio_irq(unsigned int irq, unsigned int flow_type)
|
||||
{
|
||||
int pin = irq - PNX833X_GPIO_IRQ_BASE;
|
||||
int gpio_mode;
|
||||
|
||||
switch (flow_type) {
|
||||
case IRQ_TYPE_EDGE_RISING:
|
||||
gpio_mode = GPIO_INT_EDGE_RISING;
|
||||
break;
|
||||
case IRQ_TYPE_EDGE_FALLING:
|
||||
gpio_mode = GPIO_INT_EDGE_FALLING;
|
||||
break;
|
||||
case IRQ_TYPE_EDGE_BOTH:
|
||||
gpio_mode = GPIO_INT_EDGE_BOTH;
|
||||
break;
|
||||
case IRQ_TYPE_LEVEL_HIGH:
|
||||
gpio_mode = GPIO_INT_LEVEL_HIGH;
|
||||
break;
|
||||
case IRQ_TYPE_LEVEL_LOW:
|
||||
gpio_mode = GPIO_INT_LEVEL_LOW;
|
||||
break;
|
||||
default:
|
||||
gpio_mode = GPIO_INT_NONE;
|
||||
break;
|
||||
}
|
||||
|
||||
pnx833x_gpio_setup_irq(gpio_mode, pin);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct irq_chip pnx833x_pic_irq_type = {
|
||||
.typename = "PNX-PIC",
|
||||
.startup = pnx833x_startup_pic_irq,
|
||||
.shutdown = pnx833x_shutdown_pic_irq,
|
||||
.enable = pnx833x_enable_pic_irq,
|
||||
.disable = pnx833x_disable_pic_irq,
|
||||
.ack = pnx833x_ack_pic_irq,
|
||||
.end = pnx833x_end_pic_irq
|
||||
};
|
||||
|
||||
static struct irq_chip pnx833x_gpio_irq_type = {
|
||||
.typename = "PNX-GPIO",
|
||||
.startup = pnx833x_startup_gpio_irq,
|
||||
.shutdown = pnx833x_disable_gpio_irq,
|
||||
.enable = pnx833x_enable_gpio_irq,
|
||||
.disable = pnx833x_disable_gpio_irq,
|
||||
.ack = pnx833x_ack_gpio_irq,
|
||||
.end = pnx833x_end_gpio_irq,
|
||||
.set_type = pnx833x_set_type_gpio_irq
|
||||
};
|
||||
|
||||
void __init arch_init_irq(void)
|
||||
{
|
||||
unsigned int irq;
|
||||
|
||||
/* setup standard internal cpu irqs */
|
||||
mips_cpu_irq_init();
|
||||
|
||||
/* Set IRQ information in irq_desc */
|
||||
for (irq = PNX833X_PIC_IRQ_BASE; irq < (PNX833X_PIC_IRQ_BASE + PNX833X_PIC_NUM_IRQ); irq++) {
|
||||
pnx833x_hard_disable_pic_irq(irq);
|
||||
set_irq_chip_and_handler(irq, &pnx833x_pic_irq_type, handle_simple_irq);
|
||||
}
|
||||
|
||||
for (irq = PNX833X_GPIO_IRQ_BASE; irq < (PNX833X_GPIO_IRQ_BASE + PNX833X_GPIO_NUM_IRQ); irq++)
|
||||
set_irq_chip_and_handler(irq, &pnx833x_gpio_irq_type, handle_simple_irq);
|
||||
|
||||
/* Set PIC priority limiter register to 0 */
|
||||
PNX833X_PIC_INT_PRIORITY = 0;
|
||||
|
||||
/* Setup GPIO IRQ dispatching */
|
||||
pnx833x_startup_pic_irq(PNX833X_PIC_GPIO_INT);
|
||||
|
||||
/* Enable PIC IRQs (HWIRQ2) */
|
||||
if (cpu_has_vint)
|
||||
set_vi_handler(4, pic_dispatch);
|
||||
|
||||
write_c0_status(read_c0_status() | IE_IRQ2);
|
||||
}
|
||||
|
||||
unsigned int __cpuinit get_c0_compare_int(void)
|
||||
{
|
||||
if (cpu_has_vint)
|
||||
set_vi_handler(cp0_compare_irq, pnx833x_timer_dispatch);
|
||||
|
||||
mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
|
||||
return mips_cpu_timer_irq;
|
||||
}
|
||||
|
||||
void __init plat_time_init(void)
|
||||
{
|
||||
/* calculate mips_hpt_frequency based on PNX833X_CLOCK_CPUCP_CTL reg */
|
||||
|
||||
extern unsigned long mips_hpt_frequency;
|
||||
unsigned long reg = PNX833X_CLOCK_CPUCP_CTL;
|
||||
|
||||
if (!(PNX833X_BIT(reg, CLOCK_CPUCP_CTL, EXIT_RESET))) {
|
||||
/* Functional clock is disabled so use crystal frequency */
|
||||
mips_hpt_frequency = 25;
|
||||
} else {
|
||||
#if defined(CONFIG_SOC_PNX8335)
|
||||
/* Functional clock is enabled, so get clock multiplier */
|
||||
mips_hpt_frequency = 90 + (10 * PNX8335_REGFIELD(CLOCK_PLL_CPU_CTL, FREQ));
|
||||
#else
|
||||
static const unsigned long int freq[4] = {240, 160, 120, 80};
|
||||
mips_hpt_frequency = freq[PNX833X_FIELD(reg, CLOCK_CPUCP_CTL, DIV_CLOCK)];
|
||||
#endif
|
||||
}
|
||||
|
||||
printk(KERN_INFO "CPU clock is %ld MHz\n", mips_hpt_frequency);
|
||||
|
||||
mips_hpt_frequency *= 500000;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,319 @@
|
|||
/*
|
||||
* platform.c: platform support for PNX833X.
|
||||
*
|
||||
* Copyright 2008 NXP Semiconductors
|
||||
* Chris Steel <chris.steel@nxp.com>
|
||||
* Daniel Laird <daniel.j.laird@nxp.com>
|
||||
*
|
||||
* Based on software written by:
|
||||
* Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code.
|
||||
*
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
#include <linux/device.h>
|
||||
#include <linux/dma-mapping.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/resource.h>
|
||||
#include <linux/serial.h>
|
||||
#include <linux/serial_pnx8xxx.h>
|
||||
#include <linux/mtd/nand.h>
|
||||
#include <linux/mtd/partitions.h>
|
||||
|
||||
#ifdef CONFIG_I2C_PNX0105
|
||||
/* Until i2c driver available in kernel.*/
|
||||
#include <linux/i2c-pnx0105.h>
|
||||
#endif
|
||||
|
||||
#include <irq.h>
|
||||
#include <irq-mapping.h>
|
||||
#include <pnx833x.h>
|
||||
|
||||
static u64 uart_dmamask = DMA_32BIT_MASK;
|
||||
|
||||
static struct resource pnx833x_uart_resources[] = {
|
||||
[0] = {
|
||||
.start = PNX833X_UART0_PORTS_START,
|
||||
.end = PNX833X_UART0_PORTS_END,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = PNX833X_PIC_UART0_INT,
|
||||
.end = PNX833X_PIC_UART0_INT,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
[2] = {
|
||||
.start = PNX833X_UART1_PORTS_START,
|
||||
.end = PNX833X_UART1_PORTS_END,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[3] = {
|
||||
.start = PNX833X_PIC_UART1_INT,
|
||||
.end = PNX833X_PIC_UART1_INT,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
struct pnx8xxx_port pnx8xxx_ports[] = {
|
||||
[0] = {
|
||||
.port = {
|
||||
.type = PORT_PNX8XXX,
|
||||
.iotype = UPIO_MEM,
|
||||
.membase = (void __iomem *)PNX833X_UART0_PORTS_START,
|
||||
.mapbase = PNX833X_UART0_PORTS_START,
|
||||
.irq = PNX833X_PIC_UART0_INT,
|
||||
.uartclk = 3692300,
|
||||
.fifosize = 16,
|
||||
.flags = UPF_BOOT_AUTOCONF,
|
||||
.line = 0,
|
||||
},
|
||||
},
|
||||
[1] = {
|
||||
.port = {
|
||||
.type = PORT_PNX8XXX,
|
||||
.iotype = UPIO_MEM,
|
||||
.membase = (void __iomem *)PNX833X_UART1_PORTS_START,
|
||||
.mapbase = PNX833X_UART1_PORTS_START,
|
||||
.irq = PNX833X_PIC_UART1_INT,
|
||||
.uartclk = 3692300,
|
||||
.fifosize = 16,
|
||||
.flags = UPF_BOOT_AUTOCONF,
|
||||
.line = 1,
|
||||
},
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device pnx833x_uart_device = {
|
||||
.name = "pnx8xxx-uart",
|
||||
.id = -1,
|
||||
.dev = {
|
||||
.dma_mask = &uart_dmamask,
|
||||
.coherent_dma_mask = DMA_32BIT_MASK,
|
||||
.platform_data = pnx8xxx_ports,
|
||||
},
|
||||
.num_resources = ARRAY_SIZE(pnx833x_uart_resources),
|
||||
.resource = pnx833x_uart_resources,
|
||||
};
|
||||
|
||||
static u64 ehci_dmamask = DMA_32BIT_MASK;
|
||||
|
||||
static struct resource pnx833x_usb_ehci_resources[] = {
|
||||
[0] = {
|
||||
.start = PNX833X_USB_PORTS_START,
|
||||
.end = PNX833X_USB_PORTS_END,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = PNX833X_PIC_USB_INT,
|
||||
.end = PNX833X_PIC_USB_INT,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device pnx833x_usb_ehci_device = {
|
||||
.name = "pnx833x-ehci",
|
||||
.id = -1,
|
||||
.dev = {
|
||||
.dma_mask = &ehci_dmamask,
|
||||
.coherent_dma_mask = DMA_32BIT_MASK,
|
||||
},
|
||||
.num_resources = ARRAY_SIZE(pnx833x_usb_ehci_resources),
|
||||
.resource = pnx833x_usb_ehci_resources,
|
||||
};
|
||||
|
||||
#ifdef CONFIG_I2C_PNX0105
|
||||
static struct resource pnx833x_i2c0_resources[] = {
|
||||
{
|
||||
.start = PNX833X_I2C0_PORTS_START,
|
||||
.end = PNX833X_I2C0_PORTS_END,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
{
|
||||
.start = PNX833X_PIC_I2C0_INT,
|
||||
.end = PNX833X_PIC_I2C0_INT,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct resource pnx833x_i2c1_resources[] = {
|
||||
{
|
||||
.start = PNX833X_I2C1_PORTS_START,
|
||||
.end = PNX833X_I2C1_PORTS_END,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
{
|
||||
.start = PNX833X_PIC_I2C1_INT,
|
||||
.end = PNX833X_PIC_I2C1_INT,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct i2c_pnx0105_dev pnx833x_i2c_dev[] = {
|
||||
{
|
||||
.base = PNX833X_I2C0_PORTS_START,
|
||||
.irq = -1, /* should be PNX833X_PIC_I2C0_INT but polling is faster */
|
||||
.clock = 6, /* 0 == 400 kHz, 4 == 100 kHz(Maximum HDMI), 6 = 50kHz(Prefered HDCP) */
|
||||
.bus_addr = 0, /* no slave support */
|
||||
},
|
||||
{
|
||||
.base = PNX833X_I2C1_PORTS_START,
|
||||
.irq = -1, /* on high freq, polling is faster */
|
||||
/*.irq = PNX833X_PIC_I2C1_INT,*/
|
||||
.clock = 4, /* 0 == 400 kHz, 4 == 100 kHz. 100 kHz seems a safe default for now */
|
||||
.bus_addr = 0, /* no slave support */
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device pnx833x_i2c0_device = {
|
||||
.name = "i2c-pnx0105",
|
||||
.id = 0,
|
||||
.dev = {
|
||||
.platform_data = &pnx833x_i2c_dev[0],
|
||||
},
|
||||
.num_resources = ARRAY_SIZE(pnx833x_i2c0_resources),
|
||||
.resource = pnx833x_i2c0_resources,
|
||||
};
|
||||
|
||||
static struct platform_device pnx833x_i2c1_device = {
|
||||
.name = "i2c-pnx0105",
|
||||
.id = 1,
|
||||
.dev = {
|
||||
.platform_data = &pnx833x_i2c_dev[1],
|
||||
},
|
||||
.num_resources = ARRAY_SIZE(pnx833x_i2c1_resources),
|
||||
.resource = pnx833x_i2c1_resources,
|
||||
};
|
||||
#endif
|
||||
|
||||
static u64 ethernet_dmamask = DMA_32BIT_MASK;
|
||||
|
||||
static struct resource pnx833x_ethernet_resources[] = {
|
||||
[0] = {
|
||||
.start = PNX8335_IP3902_PORTS_START,
|
||||
.end = PNX8335_IP3902_PORTS_END,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = PNX8335_PIC_ETHERNET_INT,
|
||||
.end = PNX8335_PIC_ETHERNET_INT,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device pnx833x_ethernet_device = {
|
||||
.name = "ip3902-eth",
|
||||
.id = -1,
|
||||
.dev = {
|
||||
.dma_mask = ðernet_dmamask,
|
||||
.coherent_dma_mask = DMA_32BIT_MASK,
|
||||
},
|
||||
.num_resources = ARRAY_SIZE(pnx833x_ethernet_resources),
|
||||
.resource = pnx833x_ethernet_resources,
|
||||
};
|
||||
|
||||
static struct resource pnx833x_sata_resources[] = {
|
||||
[0] = {
|
||||
.start = PNX8335_SATA_PORTS_START,
|
||||
.end = PNX8335_SATA_PORTS_END,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = PNX8335_PIC_SATA_INT,
|
||||
.end = PNX8335_PIC_SATA_INT,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device pnx833x_sata_device = {
|
||||
.name = "pnx833x-sata",
|
||||
.id = -1,
|
||||
.num_resources = ARRAY_SIZE(pnx833x_sata_resources),
|
||||
.resource = pnx833x_sata_resources,
|
||||
};
|
||||
|
||||
static const char *part_probes[] = {
|
||||
"cmdlinepart",
|
||||
NULL
|
||||
};
|
||||
|
||||
static void
|
||||
pnx833x_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
|
||||
{
|
||||
struct nand_chip *this = mtd->priv;
|
||||
unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
|
||||
|
||||
if (cmd == NAND_CMD_NONE)
|
||||
return;
|
||||
|
||||
if (ctrl & NAND_CLE)
|
||||
writeb(cmd, (void __iomem *)(nandaddr + PNX8335_NAND_CLE_MASK));
|
||||
else
|
||||
writeb(cmd, (void __iomem *)(nandaddr + PNX8335_NAND_ALE_MASK));
|
||||
}
|
||||
|
||||
static struct platform_nand_data pnx833x_flash_nand_data = {
|
||||
.chip = {
|
||||
.chip_delay = 25,
|
||||
.part_probe_types = part_probes,
|
||||
},
|
||||
.ctrl = {
|
||||
.cmd_ctrl = pnx833x_flash_nand_cmd_ctrl
|
||||
}
|
||||
};
|
||||
|
||||
/*
|
||||
* Set start to be the correct address (PNX8335_NAND_BASE with no 0xb!!),
|
||||
* 12 bytes more seems to be the standard that allows for NAND access.
|
||||
*/
|
||||
static struct resource pnx833x_flash_nand_resource = {
|
||||
.start = PNX8335_NAND_BASE,
|
||||
.end = PNX8335_NAND_BASE + 12,
|
||||
.flags = IORESOURCE_MEM,
|
||||
};
|
||||
|
||||
static struct platform_device pnx833x_flash_nand = {
|
||||
.name = "gen_nand",
|
||||
.id = -1,
|
||||
.num_resources = 1,
|
||||
.resource = &pnx833x_flash_nand_resource,
|
||||
.dev = {
|
||||
.platform_data = &pnx833x_flash_nand_data,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device *pnx833x_platform_devices[] __initdata = {
|
||||
&pnx833x_uart_device,
|
||||
&pnx833x_usb_ehci_device,
|
||||
#ifdef CONFIG_I2C_PNX0105
|
||||
&pnx833x_i2c0_device,
|
||||
&pnx833x_i2c1_device,
|
||||
#endif
|
||||
&pnx833x_ethernet_device,
|
||||
&pnx833x_sata_device,
|
||||
&pnx833x_flash_nand,
|
||||
};
|
||||
|
||||
static int __init pnx833x_platform_init(void)
|
||||
{
|
||||
int res;
|
||||
|
||||
res = platform_add_devices(pnx833x_platform_devices,
|
||||
ARRAY_SIZE(pnx833x_platform_devices));
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
arch_initcall(pnx833x_platform_init);
|
||||
|
|
@ -0,0 +1,70 @@
|
|||
/*
|
||||
* prom.c:
|
||||
*
|
||||
* Copyright 2008 NXP Semiconductors
|
||||
* Chris Steel <chris.steel@nxp.com>
|
||||
* Daniel Laird <daniel.j.laird@nxp.com>
|
||||
*
|
||||
* Based on software written by:
|
||||
* Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code.
|
||||
*
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
#include <linux/init.h>
|
||||
#include <asm/bootinfo.h>
|
||||
#include <linux/string.h>
|
||||
|
||||
void __init prom_init_cmdline(void)
|
||||
{
|
||||
int argc = fw_arg0;
|
||||
char **argv = (char **)fw_arg1;
|
||||
char *c = &(arcs_cmdline[0]);
|
||||
int i;
|
||||
|
||||
for (i = 1; i < argc; i++) {
|
||||
strcpy(c, argv[i]);
|
||||
c += strlen(argv[i]);
|
||||
if (i < argc-1)
|
||||
*c++ = ' ';
|
||||
}
|
||||
*c = 0;
|
||||
}
|
||||
|
||||
char __init *prom_getenv(char *envname)
|
||||
{
|
||||
extern char **prom_envp;
|
||||
char **env = prom_envp;
|
||||
int i;
|
||||
|
||||
i = strlen(envname);
|
||||
|
||||
while (*env) {
|
||||
if (strncmp(envname, *env, i) == 0 && *(*env+i) == '=')
|
||||
return *env + i + 1;
|
||||
env++;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void __init prom_free_prom_memory(void)
|
||||
{
|
||||
}
|
||||
|
||||
char * __init prom_getcmdline(void)
|
||||
{
|
||||
return arcs_cmdline;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,45 @@
|
|||
/*
|
||||
* reset.c: reset support for PNX833X.
|
||||
*
|
||||
* Copyright 2008 NXP Semiconductors
|
||||
* Chris Steel <chris.steel@nxp.com>
|
||||
* Daniel Laird <daniel.j.laird@nxp.com>
|
||||
*
|
||||
* Based on software written by:
|
||||
* Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code.
|
||||
*
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
#include <linux/slab.h>
|
||||
#include <linux/reboot.h>
|
||||
#include <pnx833x.h>
|
||||
|
||||
void pnx833x_machine_restart(char *command)
|
||||
{
|
||||
PNX833X_RESET_CONTROL_2 = 0;
|
||||
PNX833X_RESET_CONTROL = 0;
|
||||
}
|
||||
|
||||
void pnx833x_machine_halt(void)
|
||||
{
|
||||
while (1)
|
||||
__asm__ __volatile__ ("wait");
|
||||
|
||||
}
|
||||
|
||||
void pnx833x_machine_power_off(void)
|
||||
{
|
||||
pnx833x_machine_halt();
|
||||
}
|
||||
|
|
@ -0,0 +1,64 @@
|
|||
/*
|
||||
* setup.c: Setup PNX833X Soc.
|
||||
*
|
||||
* Copyright 2008 NXP Semiconductors
|
||||
* Chris Steel <chris.steel@nxp.com>
|
||||
* Daniel Laird <daniel.j.laird@nxp.com>
|
||||
*
|
||||
* Based on software written by:
|
||||
* Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code.
|
||||
*
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
#include <linux/init.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/ioport.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/pci.h>
|
||||
#include <asm/reboot.h>
|
||||
#include <pnx833x.h>
|
||||
#include <gpio.h>
|
||||
|
||||
extern void pnx833x_board_setup(void);
|
||||
extern void pnx833x_machine_restart(char *);
|
||||
extern void pnx833x_machine_halt(void);
|
||||
extern void pnx833x_machine_power_off(void);
|
||||
|
||||
int __init plat_mem_setup(void)
|
||||
{
|
||||
/* fake pci bus to avoid bounce buffers */
|
||||
PCI_DMA_BUS_IS_PHYS = 1;
|
||||
|
||||
/* set mips clock to 320MHz */
|
||||
#if defined(CONFIG_SOC_PNX8335)
|
||||
PNX8335_WRITEFIELD(0x17, CLOCK_PLL_CPU_CTL, FREQ);
|
||||
#endif
|
||||
pnx833x_gpio_init(); /* so it will be ready in board_setup() */
|
||||
|
||||
pnx833x_board_setup();
|
||||
|
||||
_machine_restart = pnx833x_machine_restart;
|
||||
_machine_halt = pnx833x_machine_halt;
|
||||
pm_power_off = pnx833x_machine_power_off;
|
||||
|
||||
/* IO/MEM resources. */
|
||||
set_io_port_base(KSEG1);
|
||||
ioport_resource.start = 0;
|
||||
ioport_resource.end = ~0;
|
||||
iomem_resource.start = 0;
|
||||
iomem_resource.end = ~0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
lib-y := board.o
|
||||
|
||||
EXTRA_CFLAGS += -Werror
|
||||
|
|
@ -0,0 +1,133 @@
|
|||
/*
|
||||
* board.c: STB225 board support.
|
||||
*
|
||||
* Copyright 2008 NXP Semiconductors
|
||||
* Chris Steel <chris.steel@nxp.com>
|
||||
* Daniel Laird <daniel.j.laird@nxp.com>
|
||||
*
|
||||
* Based on software written by:
|
||||
* Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code.
|
||||
*
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
#include <linux/init.h>
|
||||
#include <asm/bootinfo.h>
|
||||
#include <linux/mm.h>
|
||||
#include <pnx833x.h>
|
||||
#include <gpio.h>
|
||||
|
||||
/* endianess twiddlers */
|
||||
#define PNX8335_DEBUG0 0x4400
|
||||
#define PNX8335_DEBUG1 0x4404
|
||||
#define PNX8335_DEBUG2 0x4408
|
||||
#define PNX8335_DEBUG3 0x440c
|
||||
#define PNX8335_DEBUG4 0x4410
|
||||
#define PNX8335_DEBUG5 0x4414
|
||||
#define PNX8335_DEBUG6 0x4418
|
||||
#define PNX8335_DEBUG7 0x441c
|
||||
|
||||
int prom_argc;
|
||||
char **prom_argv = 0, **prom_envp = 0;
|
||||
|
||||
extern void prom_init_cmdline(void);
|
||||
extern char *prom_getenv(char *envname);
|
||||
|
||||
const char *get_system_type(void)
|
||||
{
|
||||
return "NXP STB22x";
|
||||
}
|
||||
|
||||
static inline unsigned long env_or_default(char *env, unsigned long dfl)
|
||||
{
|
||||
char *str = prom_getenv(env);
|
||||
return str ? simple_strtol(str, 0, 0) : dfl;
|
||||
}
|
||||
|
||||
void __init prom_init(void)
|
||||
{
|
||||
unsigned long memsize;
|
||||
|
||||
prom_argc = fw_arg0;
|
||||
prom_argv = (char **)fw_arg1;
|
||||
prom_envp = (char **)fw_arg2;
|
||||
|
||||
prom_init_cmdline();
|
||||
|
||||
memsize = env_or_default("memsize", 0x02000000);
|
||||
add_memory_region(0, memsize, BOOT_MEM_RAM);
|
||||
}
|
||||
|
||||
void __init pnx833x_board_setup(void)
|
||||
{
|
||||
pnx833x_gpio_select_function_alt(4);
|
||||
pnx833x_gpio_select_output(4);
|
||||
pnx833x_gpio_select_function_alt(5);
|
||||
pnx833x_gpio_select_input(5);
|
||||
pnx833x_gpio_select_function_alt(6);
|
||||
pnx833x_gpio_select_input(6);
|
||||
pnx833x_gpio_select_function_alt(7);
|
||||
pnx833x_gpio_select_output(7);
|
||||
|
||||
pnx833x_gpio_select_function_alt(25);
|
||||
pnx833x_gpio_select_function_alt(26);
|
||||
|
||||
pnx833x_gpio_select_function_alt(27);
|
||||
pnx833x_gpio_select_function_alt(28);
|
||||
pnx833x_gpio_select_function_alt(29);
|
||||
pnx833x_gpio_select_function_alt(30);
|
||||
pnx833x_gpio_select_function_alt(31);
|
||||
pnx833x_gpio_select_function_alt(32);
|
||||
pnx833x_gpio_select_function_alt(33);
|
||||
|
||||
#if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
|
||||
/* Setup MIU for NAND access on CS0...
|
||||
*
|
||||
* (it seems that we must also configure CS1 for reliable operation,
|
||||
* otherwise the first read ID command will fail if it's read as 4 bytes
|
||||
* but pass if it's read as 1 word.)
|
||||
*/
|
||||
|
||||
/* Setup MIU CS0 & CS1 timing */
|
||||
PNX833X_MIU_SEL0 = 0;
|
||||
PNX833X_MIU_SEL1 = 0;
|
||||
PNX833X_MIU_SEL0_TIMING = 0x50003081;
|
||||
PNX833X_MIU_SEL1_TIMING = 0x50003081;
|
||||
|
||||
/* Setup GPIO 00 for use as MIU CS1 (CS0 is not multiplexed, so does not need this) */
|
||||
pnx833x_gpio_select_function_alt(0);
|
||||
|
||||
/* Setup GPIO 04 to input NAND read/busy signal */
|
||||
pnx833x_gpio_select_function_io(4);
|
||||
pnx833x_gpio_select_input(4);
|
||||
|
||||
/* Setup GPIO 05 to disable NAND write protect */
|
||||
pnx833x_gpio_select_function_io(5);
|
||||
pnx833x_gpio_select_output(5);
|
||||
pnx833x_gpio_write(1, 5);
|
||||
|
||||
#elif defined(CONFIG_MTD_CFI) || defined(CONFIG_MTD_CFI_MODULE)
|
||||
|
||||
/* Set up MIU for 16-bit NOR access on CS0 and CS1... */
|
||||
|
||||
/* Setup MIU CS0 & CS1 timing */
|
||||
PNX833X_MIU_SEL0 = 1;
|
||||
PNX833X_MIU_SEL1 = 1;
|
||||
PNX833X_MIU_SEL0_TIMING = 0x6A08D082;
|
||||
PNX833X_MIU_SEL1_TIMING = 0x6A08D082;
|
||||
|
||||
/* Setup GPIO 00 for use as MIU CS1 (CS0 is not multiplexed, so does not need this) */
|
||||
pnx833x_gpio_select_function_alt(0);
|
||||
#endif
|
||||
}
|
||||
Loading…
Reference in New Issue