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File Content: `pic.h`

/*
 * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
 * reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the NetLogic
 * license below:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _ASM_NLM_XLR_PIC_H
#define _ASM_NLM_XLR_PIC_H

#define PIC_CLK_HZ			66666666
#define pic_timer_freq()		PIC_CLK_HZ

/* PIC hardware interrupt numbers */
#define PIC_IRT_WD_INDEX		0
#define PIC_IRT_TIMER_0_INDEX		1
#define PIC_IRT_TIMER_INDEX(i)		((i) + PIC_IRT_TIMER_0_INDEX)
#define PIC_IRT_TIMER_1_INDEX		2
#define PIC_IRT_TIMER_2_INDEX		3
#define PIC_IRT_TIMER_3_INDEX		4
#define PIC_IRT_TIMER_4_INDEX		5
#define PIC_IRT_TIMER_5_INDEX		6
#define PIC_IRT_TIMER_6_INDEX		7
#define PIC_IRT_TIMER_7_INDEX		8
#define PIC_IRT_CLOCK_INDEX		PIC_IRT_TIMER_7_INDEX
#define PIC_IRT_UART_0_INDEX		9
#define PIC_IRT_UART_1_INDEX		10
#define PIC_IRT_I2C_0_INDEX		11
#define PIC_IRT_I2C_1_INDEX		12
#define PIC_IRT_PCMCIA_INDEX		13
#define PIC_IRT_GPIO_INDEX		14
#define PIC_IRT_HYPER_INDEX		15
#define PIC_IRT_PCIX_INDEX		16
/* XLS */
#define PIC_IRT_CDE_INDEX		15
#define PIC_IRT_BRIDGE_TB_XLS_INDEX	16
/* XLS */
#define PIC_IRT_GMAC0_INDEX		17
#define PIC_IRT_GMAC1_INDEX		18
#define PIC_IRT_GMAC2_INDEX		19
#define PIC_IRT_GMAC3_INDEX		20
#define PIC_IRT_XGS0_INDEX		21
#define PIC_IRT_XGS1_INDEX		22
#define PIC_IRT_HYPER_FATAL_INDEX	23
#define PIC_IRT_PCIX_FATAL_INDEX	24
#define PIC_IRT_BRIDGE_AERR_INDEX	25
#define PIC_IRT_BRIDGE_BERR_INDEX	26
#define PIC_IRT_BRIDGE_TB_XLR_INDEX	27
#define PIC_IRT_BRIDGE_AERR_NMI_INDEX	28
/* XLS */
#define PIC_IRT_GMAC4_INDEX		21
#define PIC_IRT_GMAC5_INDEX		22
#define PIC_IRT_GMAC6_INDEX		23
#define PIC_IRT_GMAC7_INDEX		24
#define PIC_IRT_BRIDGE_ERR_INDEX	25
#define PIC_IRT_PCIE_LINK0_INDEX	26
#define PIC_IRT_PCIE_LINK1_INDEX	27
#define PIC_IRT_PCIE_LINK2_INDEX	23
#define PIC_IRT_PCIE_LINK3_INDEX	24
#define PIC_IRT_PCIE_XLSB0_LINK2_INDEX	28
#define PIC_IRT_PCIE_XLSB0_LINK3_INDEX	29
#define PIC_IRT_SRIO_LINK0_INDEX	26
#define PIC_IRT_SRIO_LINK1_INDEX	27
#define PIC_IRT_SRIO_LINK2_INDEX	28
#define PIC_IRT_SRIO_LINK3_INDEX	29
#define PIC_IRT_PCIE_INT_INDEX		28
#define PIC_IRT_PCIE_FATAL_INDEX	29
#define PIC_IRT_GPIO_B_INDEX		30
#define PIC_IRT_USB_INDEX		31
/* XLS */
#define PIC_NUM_IRTS			32


#define PIC_CLOCK_TIMER			7

/* PIC Registers */
#define PIC_CTRL			0x00
#define PIC_CTRL_STE			8	/* timer enable start bit */
#define PIC_IPI				0x04
#define PIC_INT_ACK			0x06

#define WD_MAX_VAL_0			0x08
#define WD_MAX_VAL_1			0x09
#define WD_MASK_0			0x0a
#define WD_MASK_1			0x0b
#define WD_HEARBEAT_0			0x0c
#define WD_HEARBEAT_1			0x0d

#define PIC_IRT_0_BASE			0x40
#define PIC_IRT_1_BASE			0x80
#define PIC_TIMER_MAXVAL_0_BASE		0x100
#define PIC_TIMER_MAXVAL_1_BASE		0x110
#define PIC_TIMER_COUNT_0_BASE		0x120
#define PIC_TIMER_COUNT_1_BASE		0x130

#define PIC_IRT_0(picintr)	(PIC_IRT_0_BASE + (picintr))
#define PIC_IRT_1(picintr)	(PIC_IRT_1_BASE + (picintr))

#define PIC_TIMER_MAXVAL_0(i)	(PIC_TIMER_MAXVAL_0_BASE + (i))
#define PIC_TIMER_MAXVAL_1(i)	(PIC_TIMER_MAXVAL_1_BASE + (i))
#define PIC_TIMER_COUNT_0(i)	(PIC_TIMER_COUNT_0_BASE + (i))
#define PIC_TIMER_COUNT_1(i)	(PIC_TIMER_COUNT_0_BASE + (i))

/*
 * Mapping between hardware interrupt numbers and IRQs on CPU
 * we use a simple scheme to map PIC interrupts 0-31 to IRQs
 * 8-39. This leaves the IRQ 0-7 for cpu interrupts like
 * count/compare and FMN
 */
#define PIC_IRQ_BASE		8
#define PIC_INTR_TO_IRQ(i)	(PIC_IRQ_BASE + (i))
#define PIC_IRQ_TO_INTR(i)	((i) - PIC_IRQ_BASE)

#define PIC_IRT_FIRST_IRQ	PIC_IRQ_BASE
#define PIC_WD_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_WD_INDEX)
#define PIC_TIMER_0_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_TIMER_0_INDEX)
#define PIC_TIMER_1_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_TIMER_1_INDEX)
#define PIC_TIMER_2_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_TIMER_2_INDEX)
#define PIC_TIMER_3_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_TIMER_3_INDEX)
#define PIC_TIMER_4_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_TIMER_4_INDEX)
#define PIC_TIMER_5_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_TIMER_5_INDEX)
#define PIC_TIMER_6_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_TIMER_6_INDEX)
#define PIC_TIMER_7_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_TIMER_7_INDEX)
#define PIC_CLOCK_IRQ		(PIC_TIMER_7_IRQ)
#define PIC_UART_0_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_UART_0_INDEX)
#define PIC_UART_1_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_UART_1_INDEX)
#define PIC_I2C_0_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_I2C_0_INDEX)
#define PIC_I2C_1_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_I2C_1_INDEX)
#define PIC_PCMCIA_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_PCMCIA_INDEX)
#define PIC_GPIO_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_GPIO_INDEX)
#define PIC_HYPER_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_HYPER_INDEX)
#define PIC_PCIX_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_PCIX_INDEX)
/* XLS */
#define PIC_CDE_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_CDE_INDEX)
#define PIC_BRIDGE_TB_XLS_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_TB_XLS_INDEX)
/* end XLS */
#define PIC_GMAC_0_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_GMAC0_INDEX)
#define PIC_GMAC_1_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_GMAC1_INDEX)
#define PIC_GMAC_2_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_GMAC2_INDEX)
#define PIC_GMAC_3_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_GMAC3_INDEX)
#define PIC_XGS_0_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_XGS0_INDEX)
#define PIC_XGS_1_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_XGS1_INDEX)
#define PIC_HYPER_FATAL_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_HYPER_FATAL_INDEX)
#define PIC_PCIX_FATAL_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_PCIX_FATAL_INDEX)
#define PIC_BRIDGE_AERR_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_AERR_INDEX)
#define PIC_BRIDGE_BERR_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_BERR_INDEX)
#define PIC_BRIDGE_TB_XLR_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_TB_XLR_INDEX)
#define PIC_BRIDGE_AERR_NMI_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_AERR_NMI_INDEX)
/* XLS defines */
#define PIC_GMAC_4_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_GMAC4_INDEX)
#define PIC_GMAC_5_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_GMAC5_INDEX)
#define PIC_GMAC_6_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_GMAC6_INDEX)
#define PIC_GMAC_7_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_GMAC7_INDEX)
#define PIC_BRIDGE_ERR_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_ERR_INDEX)
#define PIC_PCIE_LINK0_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_PCIE_LINK0_INDEX)
#define PIC_PCIE_LINK1_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_PCIE_LINK1_INDEX)
#define PIC_PCIE_LINK2_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_PCIE_LINK2_INDEX)
#define PIC_PCIE_LINK3_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_PCIE_LINK3_INDEX)
#define PIC_PCIE_XLSB0_LINK2_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIE_XLSB0_LINK2_INDEX)
#define PIC_PCIE_XLSB0_LINK3_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIE_XLSB0_LINK3_INDEX)
#define PIC_SRIO_LINK0_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_SRIO_LINK0_INDEX)
#define PIC_SRIO_LINK1_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_SRIO_LINK1_INDEX)
#define PIC_SRIO_LINK2_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_SRIO_LINK2_INDEX)
#define PIC_SRIO_LINK3_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_SRIO_LINK3_INDEX)
#define PIC_PCIE_INT_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_PCIE_INT__INDEX)
#define PIC_PCIE_FATAL_IRQ	PIC_INTR_TO_IRQ(PIC_IRT_PCIE_FATAL_INDEX)
#define PIC_GPIO_B_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_GPIO_B_INDEX)
#define PIC_USB_IRQ		PIC_INTR_TO_IRQ(PIC_IRT_USB_INDEX)
#define PIC_IRT_LAST_IRQ	PIC_USB_IRQ
/* end XLS */

#ifndef __ASSEMBLY__

#define PIC_IRQ_IS_EDGE_TRIGGERED(irq)	(((irq) >= PIC_TIMER_0_IRQ) && \
					((irq) <= PIC_TIMER_7_IRQ))
#define PIC_IRQ_IS_IRT(irq)		(((irq) >= PIC_IRT_FIRST_IRQ) && \
					((irq) <= PIC_IRT_LAST_IRQ))

static inline int
nlm_irq_to_irt(int irq)
{
	if (PIC_IRQ_IS_IRT(irq) == 0)
		return -1;

	return PIC_IRQ_TO_INTR(irq);
}

static inline int
nlm_irt_to_irq(int irt)
{

	return PIC_INTR_TO_IRQ(irt);
}

static inline void
nlm_pic_enable_irt(uint64_t base, int irt)
{
	uint32_t reg;

	reg = nlm_read_reg(base, PIC_IRT_1(irt));
	nlm_write_reg(base, PIC_IRT_1(irt), reg | (1u << 31));
}

static inline void
nlm_pic_disable_irt(uint64_t base, int irt)
{
	uint32_t reg;

	reg = nlm_read_reg(base, PIC_IRT_1(irt));
	nlm_write_reg(base, PIC_IRT_1(irt), reg & ~(1u << 31));
}

static inline void
nlm_pic_send_ipi(uint64_t base, int hwt, int irq, int nmi)
{
	unsigned int tid, pid;

	tid = hwt & 0x3;
	pid = (hwt >> 2) & 0x07;
	nlm_write_reg(base, PIC_IPI,
		(pid << 20) | (tid << 16) | (nmi << 8) | irq);
}

static inline void
nlm_pic_ack(uint64_t base, int irt)
{
	nlm_write_reg(base, PIC_INT_ACK, 1u << irt);
}

static inline void
nlm_pic_init_irt(uint64_t base, int irt, int irq, int hwt, int en)
{
	nlm_write_reg(base, PIC_IRT_0(irt), (1u << hwt));
	/* local scheduling, invalid, level by default */
	nlm_write_reg(base, PIC_IRT_1(irt),
		(en << 30) | (1 << 6) | irq);
}

static inline uint64_t
nlm_pic_read_timer(uint64_t base, int timer)
{
	uint32_t up1, up2, low;

	up1 = nlm_read_reg(base, PIC_TIMER_COUNT_1(timer));
	low = nlm_read_reg(base, PIC_TIMER_COUNT_0(timer));
	up2 = nlm_read_reg(base, PIC_TIMER_COUNT_1(timer));

	if (up1 != up2) /* wrapped, get the new low */
		low = nlm_read_reg(base, PIC_TIMER_COUNT_0(timer));
	return ((uint64_t)up2 << 32) | low;

}

static inline uint32_t
nlm_pic_read_timer32(uint64_t base, int timer)
{
	return nlm_read_reg(base, PIC_TIMER_COUNT_0(timer));
}

static inline void
nlm_pic_set_timer(uint64_t base, int timer, uint64_t value, int irq, int cpu)
{
	uint32_t up, low;
	uint64_t pic_ctrl = nlm_read_reg(base, PIC_CTRL);
	int en;

	en = (irq > 0);
	up = value >> 32;
	low = value & 0xFFFFFFFF;
	nlm_write_reg(base, PIC_TIMER_MAXVAL_0(timer), low);
	nlm_write_reg(base, PIC_TIMER_MAXVAL_1(timer), up);
	nlm_pic_init_irt(base, PIC_IRT_TIMER_INDEX(timer), irq, cpu, 0);

	/* enable the timer */
	pic_ctrl |= (1 << (PIC_CTRL_STE + timer));
	nlm_write_reg(base, PIC_CTRL, pic_ctrl);
}
#endif
#endif /* _ASM_NLM_XLR_PIC_H */
Name	Size	Permission
bridge.h	3796 bytes	0644
flash.h	2268 bytes	0644
fmn.h	11773 bytes	0644
gpio.h	2713 bytes	0644
iomap.h	4037 bytes	0644
msidef.h	3189 bytes	0644
pic.h	10876 bytes	0644
xlr.h	2211 bytes	0644
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File Content: pic.h

File Content: `pic.h`
