/*
* IBM ASM Service Processor Device Driver
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Copyright (C) IBM Corporation, 2004
*
* Author: Max Asböck <amax@us.ibm.com>
*
*/
/* Condor service processor specific hardware definitions */
#ifndef __IBMASM_CONDOR_H__
#define __IBMASM_CONDOR_H__
#include <asm/io.h>
#define VENDORID_IBM 0x1014
#define DEVICEID_RSA 0x010F
#define GET_MFA_ADDR(x) (x & 0xFFFFFF00)
#define MAILBOX_FULL(x) (x & 0x00000001)
#define NO_MFAS_AVAILABLE 0xFFFFFFFF
#define INBOUND_QUEUE_PORT 0x40 /* contains address of next free MFA */
#define OUTBOUND_QUEUE_PORT 0x44 /* contains address of posted MFA */
#define SP_INTR_MASK 0x00000008
#define UART_INTR_MASK 0x00000010
#define INTR_STATUS_REGISTER 0x13A0
#define INTR_CONTROL_REGISTER 0x13A4
#define SCOUT_COM_A_BASE 0x0000
#define SCOUT_COM_B_BASE 0x0100
#define SCOUT_COM_C_BASE 0x0200
#define SCOUT_COM_D_BASE 0x0300
static inline int sp_interrupt_pending(void __iomem *base_address)
{
return SP_INTR_MASK & readl(base_address + INTR_STATUS_REGISTER);
}
static inline int uart_interrupt_pending(void __iomem *base_address)
{
return UART_INTR_MASK & readl(base_address + INTR_STATUS_REGISTER);
}
static inline void ibmasm_enable_interrupts(void __iomem *base_address, int mask)
{
void __iomem *ctrl_reg = base_address + INTR_CONTROL_REGISTER;
writel( readl(ctrl_reg) & ~mask, ctrl_reg);
}
static inline void ibmasm_disable_interrupts(void __iomem *base_address, int mask)
{
void __iomem *ctrl_reg = base_address + INTR_CONTROL_REGISTER;
writel( readl(ctrl_reg) | mask, ctrl_reg);
}
static inline void enable_sp_interrupts(void __iomem *base_address)
{
ibmasm_enable_interrupts(base_address, SP_INTR_MASK);
}
static inline void disable_sp_interrupts(void __iomem *base_address)
{
ibmasm_disable_interrupts(base_address, SP_INTR_MASK);
}
static inline void enable_uart_interrupts(void __iomem *base_address)
{
ibmasm_enable_interrupts(base_address, UART_INTR_MASK);
}
static inline void disable_uart_interrupts(void __iomem *base_address)
{
ibmasm_disable_interrupts(base_address, UART_INTR_MASK);
}
#define valid_mfa(mfa) ( (mfa) != NO_MFAS_AVAILABLE )
static inline u32 get_mfa_outbound(void __iomem *base_address)
{
int retry;
u32 mfa;
for (retry=0; retry<=10; retry++) {
mfa = readl(base_address + OUTBOUND_QUEUE_PORT);
if (valid_mfa(mfa))
break;
}
return mfa;
}
static inline void set_mfa_outbound(void __iomem *base_address, u32 mfa)
{
writel(mfa, base_address + OUTBOUND_QUEUE_PORT);
}
static inline u32 get_mfa_inbound(void __iomem *base_address)
{
u32 mfa = readl(base_address + INBOUND_QUEUE_PORT);
if (MAILBOX_FULL(mfa))
return 0;
return mfa;
}
static inline void set_mfa_inbound(void __iomem *base_address, u32 mfa)
{
writel(mfa, base_address + INBOUND_QUEUE_PORT);
}
static inline struct i2o_message *get_i2o_message(void __iomem *base_address, u32 mfa)
{
return (struct i2o_message *)(GET_MFA_ADDR(mfa) + base_address);
}
#endif /* __IBMASM_CONDOR_H__ */
