AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 17:30:53 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

MIPS: Add support for NXP PNX833x (STB222/5) into linux kernel

Browse Source 
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>
This commit is contained in:
Daniel Laird 2008-06-16 15:49:21 +01:00 committed by Ralf Baechle
parent 537fa37c86
commit edb6310aaa
16 changed files with 2783 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
arch/mips/Kconfig
View File

@ -261,6 +261,19 @@ config MACH_VR41XX
select SYS_HAS_CPU_VR41XX
select GENERIC_HARDIRQS_NO__DO_IRQ
config NXP_STB220
bool "NXP STB220 board"
select SOC_PNX833X
help
Support for NXP Semiconductors STB220 Development Board.
config NXP_STB225
bool "NXP 225 board"
select SOC_PNX833X
select SOC_PNX8335
help
Support for NXP Semiconductors STB225 Development Board.
config PNX8550_JBS
bool "NXP PNX8550 based JBS board"
select PNX8550
@ -849,6 +862,24 @@ config MIPS_RM9122
bool
select SERIAL_RM9000
config SOC_PNX833X
bool
select CEVT_R4K
select CSRC_R4K
select IRQ_CPU
select DMA_NONCOHERENT
select SYS_HAS_CPU_MIPS32_R2
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_BIG_ENDIAN
select GENERIC_HARDIRQS_NO__DO_IRQ
select GENERIC_GPIO
select CPU_MIPSR2_IRQ_VI
config SOC_PNX8335
bool
select SOC_PNX833X
config PNX8550
bool
select SOC_PNX8550

8
arch/mips/Makefile
View File

@ -381,6 +381,14 @@ load-$(CONFIG_CASIO_E55) += 0xffffffff80004000
#
load-$(CONFIG_TANBAC_TB022X) += 0xffffffff80000000
# NXP STB225
core-$(CONFIG_SOC_PNX833X) += arch/mips/nxp/pnx833x/common/
cflags-$(CONFIG_SOC_PNX833X) += -Iarch/mips/include/asm/mach-pnx833x
libs-$(CONFIG_NXP_STB220) += arch/mips/nxp/pnx833x/stb22x/
load-$(CONFIG_NXP_STB220) += 0xffffffff80001000
libs-$(CONFIG_NXP_STB225) += arch/mips/nxp/pnx833x/stb22x/
load-$(CONFIG_NXP_STB225) += 0xffffffff80001000
#
# Common NXP PNX8550
#

1149
arch/mips/configs/pnx8335-stb225_defconfig Normal file
View File

File diff suppressed because it is too large Load Diff

172
arch/mips/include/asm/mach-pnx833x/gpio.h Normal file
View File

@ -0,0 +1,172 @@
/*
* gpio.h: GPIO Support 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_GPIO_H
#define __ASM_MIPS_MACH_PNX833X_GPIO_H
/* BIG FAT WARNING: races danger!
No protections exist here. Current users are only early init code,
when locking is not needed because no cuncurency yet exists there,
and GPIO IRQ dispatcher, which does locking.
However, if many uses will ever happen, proper locking will be needed
- including locking between different uses
*/
#include "pnx833x.h"
#define SET_REG_BIT(reg, bit) do { (reg |= (1 << (bit))); } while (0)
#define CLEAR_REG_BIT(reg, bit) do { (reg &= ~(1 << (bit))); } while (0)
/* Initialize GPIO to a known state */
static inline void pnx833x_gpio_init(void)
{
PNX833X_PIO_DIR = 0;
PNX833X_PIO_DIR2 = 0;
PNX833X_PIO_SEL = 0;
PNX833X_PIO_SEL2 = 0;
PNX833X_PIO_INT_EDGE = 0;
PNX833X_PIO_INT_HI = 0;
PNX833X_PIO_INT_LO = 0;
/* clear any GPIO interrupt requests */
PNX833X_PIO_INT_CLEAR = 0xffff;
PNX833X_PIO_INT_CLEAR = 0;
PNX833X_PIO_INT_ENABLE = 0;
}
/* Select GPIO direction for a pin */
static inline void pnx833x_gpio_select_input(unsigned int pin)
{
if (pin < 32)
CLEAR_REG_BIT(PNX833X_PIO_DIR, pin);
else
CLEAR_REG_BIT(PNX833X_PIO_DIR2, pin & 31);
}
static inline void pnx833x_gpio_select_output(unsigned int pin)
{
if (pin < 32)
SET_REG_BIT(PNX833X_PIO_DIR, pin);
else
SET_REG_BIT(PNX833X_PIO_DIR2, pin & 31);
}
/* Select GPIO or alternate function for a pin */
static inline void pnx833x_gpio_select_function_io(unsigned int pin)
{
if (pin < 32)
CLEAR_REG_BIT(PNX833X_PIO_SEL, pin);
else
CLEAR_REG_BIT(PNX833X_PIO_SEL2, pin & 31);
}
static inline void pnx833x_gpio_select_function_alt(unsigned int pin)
{
if (pin < 32)
SET_REG_BIT(PNX833X_PIO_SEL, pin);
else
SET_REG_BIT(PNX833X_PIO_SEL2, pin & 31);
}
/* Read GPIO pin */
static inline int pnx833x_gpio_read(unsigned int pin)
{
if (pin < 32)
return (PNX833X_PIO_IN >> pin) & 1;
else
return (PNX833X_PIO_IN2 >> (pin & 31)) & 1;
}
/* Write GPIO pin */
static inline void pnx833x_gpio_write(unsigned int val, unsigned int pin)
{
if (pin < 32) {
if (val)
SET_REG_BIT(PNX833X_PIO_OUT, pin);
else
CLEAR_REG_BIT(PNX833X_PIO_OUT, pin);
} else {
if (val)
SET_REG_BIT(PNX833X_PIO_OUT2, pin & 31);
else
CLEAR_REG_BIT(PNX833X_PIO_OUT2, pin & 31);
}
}
/* Configure GPIO interrupt */
#define GPIO_INT_NONE 0
#define GPIO_INT_LEVEL_LOW 1
#define GPIO_INT_LEVEL_HIGH 2
#define GPIO_INT_EDGE_RISING 3
#define GPIO_INT_EDGE_FALLING 4
#define GPIO_INT_EDGE_BOTH 5
static inline void pnx833x_gpio_setup_irq(int when, unsigned int pin)
{
switch (when) {
case GPIO_INT_LEVEL_LOW:
CLEAR_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
CLEAR_REG_BIT(PNX833X_PIO_INT_HI, pin);
SET_REG_BIT(PNX833X_PIO_INT_LO, pin);
break;
case GPIO_INT_LEVEL_HIGH:
CLEAR_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
SET_REG_BIT(PNX833X_PIO_INT_HI, pin);
CLEAR_REG_BIT(PNX833X_PIO_INT_LO, pin);
break;
case GPIO_INT_EDGE_RISING:
SET_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
SET_REG_BIT(PNX833X_PIO_INT_HI, pin);
CLEAR_REG_BIT(PNX833X_PIO_INT_LO, pin);
break;
case GPIO_INT_EDGE_FALLING:
SET_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
CLEAR_REG_BIT(PNX833X_PIO_INT_HI, pin);
SET_REG_BIT(PNX833X_PIO_INT_LO, pin);
break;
case GPIO_INT_EDGE_BOTH:
SET_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
SET_REG_BIT(PNX833X_PIO_INT_HI, pin);
SET_REG_BIT(PNX833X_PIO_INT_LO, pin);
break;
default:
CLEAR_REG_BIT(PNX833X_PIO_INT_EDGE, pin);
CLEAR_REG_BIT(PNX833X_PIO_INT_HI, pin);
CLEAR_REG_BIT(PNX833X_PIO_INT_LO, pin);
break;
}
}
/* Enable/disable GPIO interrupt */
static inline void pnx833x_gpio_enable_irq(unsigned int pin)
{
SET_REG_BIT(PNX833X_PIO_INT_ENABLE, pin);
}
static inline void pnx833x_gpio_disable_irq(unsigned int pin)
{
CLEAR_REG_BIT(PNX833X_PIO_INT_ENABLE, pin);
}
/* Clear GPIO interrupt request */
static inline void pnx833x_gpio_clear_irq(unsigned int pin)
{
SET_REG_BIT(PNX833X_PIO_INT_CLEAR, pin);
CLEAR_REG_BIT(PNX833X_PIO_INT_CLEAR, pin);
}
#endif

126
arch/mips/include/asm/mach-pnx833x/irq-mapping.h Normal file
View File

@ -0,0 +1,126 @@
/*
* 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_MAPPING_H
#define __ASM_MIPS_MACH_PNX833X_IRQ_MAPPING_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.
*
*/
#include <irq.h>
#define PNX833X_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7)
/* Interrupts supported by PIC */
#define PNX833X_PIC_I2C0_INT (PNX833X_PIC_IRQ_BASE + 1)
#define PNX833X_PIC_I2C1_INT (PNX833X_PIC_IRQ_BASE + 2)
#define PNX833X_PIC_UART0_INT (PNX833X_PIC_IRQ_BASE + 3)
#define PNX833X_PIC_UART1_INT (PNX833X_PIC_IRQ_BASE + 4)
#define PNX833X_PIC_TS_IN0_DV_INT (PNX833X_PIC_IRQ_BASE + 5)
#define PNX833X_PIC_TS_IN0_DMA_INT (PNX833X_PIC_IRQ_BASE + 6)
#define PNX833X_PIC_GPIO_INT (PNX833X_PIC_IRQ_BASE + 7)
#define PNX833X_PIC_AUDIO_DEC_INT (PNX833X_PIC_IRQ_BASE + 8)
#define PNX833X_PIC_VIDEO_DEC_INT (PNX833X_PIC_IRQ_BASE + 9)
#define PNX833X_PIC_CONFIG_INT (PNX833X_PIC_IRQ_BASE + 10)
#define PNX833X_PIC_AOI_INT (PNX833X_PIC_IRQ_BASE + 11)
#define PNX833X_PIC_SYNC_INT (PNX833X_PIC_IRQ_BASE + 12)
#define PNX8330_PIC_SPU_INT (PNX833X_PIC_IRQ_BASE + 13)
#define PNX8335_PIC_SATA_INT (PNX833X_PIC_IRQ_BASE + 13)
#define PNX833X_PIC_OSD_INT (PNX833X_PIC_IRQ_BASE + 14)
#define PNX833X_PIC_DISP1_INT (PNX833X_PIC_IRQ_BASE + 15)
#define PNX833X_PIC_DEINTERLACER_INT (PNX833X_PIC_IRQ_BASE + 16)
#define PNX833X_PIC_DISPLAY2_INT (PNX833X_PIC_IRQ_BASE + 17)
#define PNX833X_PIC_VC_INT (PNX833X_PIC_IRQ_BASE + 18)
#define PNX833X_PIC_SC_INT (PNX833X_PIC_IRQ_BASE + 19)
#define PNX833X_PIC_IDE_INT (PNX833X_PIC_IRQ_BASE + 20)
#define PNX833X_PIC_IDE_DMA_INT (PNX833X_PIC_IRQ_BASE + 21)
#define PNX833X_PIC_TS_IN1_DV_INT (PNX833X_PIC_IRQ_BASE + 22)
#define PNX833X_PIC_TS_IN1_DMA_INT (PNX833X_PIC_IRQ_BASE + 23)
#define PNX833X_PIC_SGDX_DMA_INT (PNX833X_PIC_IRQ_BASE + 24)
#define PNX833X_PIC_TS_OUT_INT (PNX833X_PIC_IRQ_BASE + 25)
#define PNX833X_PIC_IR_INT (PNX833X_PIC_IRQ_BASE + 26)
#define PNX833X_PIC_VMSP1_INT (PNX833X_PIC_IRQ_BASE + 27)
#define PNX833X_PIC_VMSP2_INT (PNX833X_PIC_IRQ_BASE + 28)
#define PNX833X_PIC_PIBC_INT (PNX833X_PIC_IRQ_BASE + 29)
#define PNX833X_PIC_TS_IN0_TRD_INT (PNX833X_PIC_IRQ_BASE + 30)
#define PNX833X_PIC_SGDX_TPD_INT (PNX833X_PIC_IRQ_BASE + 31)
#define PNX833X_PIC_USB_INT (PNX833X_PIC_IRQ_BASE + 32)
#define PNX833X_PIC_TS_IN1_TRD_INT (PNX833X_PIC_IRQ_BASE + 33)
#define PNX833X_PIC_CLOCK_INT (PNX833X_PIC_IRQ_BASE + 34)
#define PNX833X_PIC_SGDX_PARSER_INT (PNX833X_PIC_IRQ_BASE + 35)
#define PNX833X_PIC_VMSP_DMA_INT (PNX833X_PIC_IRQ_BASE + 36)
#if defined(CONFIG_SOC_PNX8335)
#define PNX8335_PIC_MIU_INT (PNX833X_PIC_IRQ_BASE + 37)
#define PNX8335_PIC_AVCHIP_IRQ_INT (PNX833X_PIC_IRQ_BASE + 38)
#define PNX8335_PIC_SYNC_HD_INT (PNX833X_PIC_IRQ_BASE + 39)
#define PNX8335_PIC_DISP_HD_INT (PNX833X_PIC_IRQ_BASE + 40)
#define PNX8335_PIC_DISP_SCALER_INT (PNX833X_PIC_IRQ_BASE + 41)
#define PNX8335_PIC_OSD_HD1_INT (PNX833X_PIC_IRQ_BASE + 42)
#define PNX8335_PIC_DTL_WRITER_Y_INT (PNX833X_PIC_IRQ_BASE + 43)
#define PNX8335_PIC_DTL_WRITER_C_INT (PNX833X_PIC_IRQ_BASE + 44)
#define PNX8335_PIC_DTL_EMULATOR_Y_IR_INT (PNX833X_PIC_IRQ_BASE + 45)
#define PNX8335_PIC_DTL_EMULATOR_C_IR_INT (PNX833X_PIC_IRQ_BASE + 46)
#define PNX8335_PIC_DENC_TTX_INT (PNX833X_PIC_IRQ_BASE + 47)
#define PNX8335_PIC_MMI_SIF0_INT (PNX833X_PIC_IRQ_BASE + 48)
#define PNX8335_PIC_MMI_SIF1_INT (PNX833X_PIC_IRQ_BASE + 49)
#define PNX8335_PIC_MMI_CDMMU_INT (PNX833X_PIC_IRQ_BASE + 50)
#define PNX8335_PIC_PIBCS_INT (PNX833X_PIC_IRQ_BASE + 51)
#define PNX8335_PIC_ETHERNET_INT (PNX833X_PIC_IRQ_BASE + 52)
#define PNX8335_PIC_VMSP1_0_INT (PNX833X_PIC_IRQ_BASE + 53)
#define PNX8335_PIC_VMSP1_1_INT (PNX833X_PIC_IRQ_BASE + 54)
#define PNX8335_PIC_VMSP1_DMA_INT (PNX833X_PIC_IRQ_BASE + 55)
#define PNX8335_PIC_TDGR_DE_INT (PNX833X_PIC_IRQ_BASE + 56)
#define PNX8335_PIC_IR1_IRQ_INT (PNX833X_PIC_IRQ_BASE + 57)
#endif
/* GPIO interrupts */
#define PNX833X_GPIO_0_INT (PNX833X_GPIO_IRQ_BASE + 0)
#define PNX833X_GPIO_1_INT (PNX833X_GPIO_IRQ_BASE + 1)
#define PNX833X_GPIO_2_INT (PNX833X_GPIO_IRQ_BASE + 2)
#define PNX833X_GPIO_3_INT (PNX833X_GPIO_IRQ_BASE + 3)
#define PNX833X_GPIO_4_INT (PNX833X_GPIO_IRQ_BASE + 4)
#define PNX833X_GPIO_5_INT (PNX833X_GPIO_IRQ_BASE + 5)
#define PNX833X_GPIO_6_INT (PNX833X_GPIO_IRQ_BASE + 6)
#define PNX833X_GPIO_7_INT (PNX833X_GPIO_IRQ_BASE + 7)
#define PNX833X_GPIO_8_INT (PNX833X_GPIO_IRQ_BASE + 8)
#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

53
arch/mips/include/asm/mach-pnx833x/irq.h Normal file
View File

@ -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

202
arch/mips/include/asm/mach-pnx833x/pnx833x.h Normal file
View File

@ -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

25
arch/mips/include/asm/mach-pnx833x/war.h Normal file
View File

@ -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 */

3
arch/mips/nxp/pnx833x/common/Makefile Normal file
View File

@ -0,0 +1,3 @@
obj-y := interrupts.o platform.o prom.o setup.o reset.o
EXTRA_CFLAGS += -Werror

380
arch/mips/nxp/pnx833x/common/interrupts.c Normal file
View File

@ -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;
}

319
arch/mips/nxp/pnx833x/common/platform.c Normal file
View File

@ -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 = &ethernet_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);

70
arch/mips/nxp/pnx833x/common/prom.c Normal file
View File

@ -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;
}

45
arch/mips/nxp/pnx833x/common/reset.c Normal file
View File

@ -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();
}

64
arch/mips/nxp/pnx833x/common/setup.c Normal file
View File

@ -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;
}

3
arch/mips/nxp/pnx833x/stb22x/Makefile Normal file
View File

@ -0,0 +1,3 @@
lib-y := board.o
EXTRA_CFLAGS += -Werror

133
arch/mips/nxp/pnx833x/stb22x/board.c Normal file
View File

@ -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
}