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authorMathieu J. Poirier <mathieu.poirier@linaro.org>2012-07-31 08:59:24 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-09-01 14:58:19 +0200
commit42cb8fb6cb2c869229b0158e3c86c50fb242d6aa (patch)
tree6d32f80984361fd84e659fe9a861f181c78c11ab /board/st-ericsson/u8500
parent84dee301c30d728f97c85f795661804980fb0c77 (diff)
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u8500: Moving prcmu to cpu directory
This is to allow the prcmu functions to be used by multiple u8500-based processors. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: John Rigby <john.rigby@linaro.org>
Diffstat (limited to 'board/st-ericsson/u8500')
-rw-r--r--board/st-ericsson/u8500/Makefile2
-rw-r--r--board/st-ericsson/u8500/prcmu-fw.h55
-rw-r--r--board/st-ericsson/u8500/prcmu.c165
-rw-r--r--board/st-ericsson/u8500/u8500_href.c2
4 files changed, 2 insertions, 222 deletions
diff --git a/board/st-ericsson/u8500/Makefile b/board/st-ericsson/u8500/Makefile
index 4091a42..4ea2212 100644
--- a/board/st-ericsson/u8500/Makefile
+++ b/board/st-ericsson/u8500/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
CFLAGS += -D__RELEASE -D__STN_8500
LIB = $(obj)lib$(BOARD).o
-COBJS := u8500_href.o gpio.o prcmu.o
+COBJS := u8500_href.o gpio.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/st-ericsson/u8500/prcmu-fw.h b/board/st-ericsson/u8500/prcmu-fw.h
deleted file mode 100644
index 0836983..0000000
--- a/board/st-ericsson/u8500/prcmu-fw.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 2009 ST-Ericsson SA
- *
- * Copied from the Linux version:
- * Author: Kumar Sanghvi <kumar.sanghvi@stericsson.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 __MACH_PRCMU_FW_V1_H
-#define __MACH_PRCMU_FW_V1_H
-
-#define AP_EXECUTE 2
-#define I2CREAD 1
-#define I2C_WR_OK 1
-#define I2C_RD_OK 2
-#define I2CWRITE 0
-
-#define _PRCMU_TCDM_BASE U8500_PRCMU_TCDM_BASE
-#define PRCM_XP70_CUR_PWR_STATE (_PRCMU_TCDM_BASE + 0xFFC) /* 4 BYTES */
-
-#define PRCM_REQ_MB5 (_PRCMU_TCDM_BASE + 0xE44) /* 4 bytes */
-#define PRCM_ACK_MB5 (_PRCMU_TCDM_BASE + 0xDF4) /* 4 bytes */
-
-/* Mailbox 5 Requests */
-#define PRCM_REQ_MB5_I2COPTYPE_REG (PRCM_REQ_MB5 + 0x0)
-#define PRCM_REQ_MB5_BIT_FIELDS (PRCM_REQ_MB5 + 0x1)
-#define PRCM_REQ_MB5_I2CSLAVE (PRCM_REQ_MB5 + 0x2)
-#define PRCM_REQ_MB5_I2CVAL (PRCM_REQ_MB5 + 0x3)
-
-/* Mailbox 5 ACKs */
-#define PRCM_ACK_MB5_STATUS (PRCM_ACK_MB5 + 0x1)
-#define PRCM_ACK_MB5_SLAVE (PRCM_ACK_MB5 + 0x2)
-#define PRCM_ACK_MB5_VAL (PRCM_ACK_MB5 + 0x3)
-
-#define LOW_POWER_WAKEUP 1
-#define EXE_WAKEUP 0
-
-#define REQ_MB5 5
-
-extern int prcmu_i2c_read(u8 reg, u16 slave);
-extern int prcmu_i2c_write(u8 reg, u16 slave, u8 reg_data);
-
-#endif /* __MACH_PRCMU_FW_V1_H */
diff --git a/board/st-ericsson/u8500/prcmu.c b/board/st-ericsson/u8500/prcmu.c
deleted file mode 100644
index 6f9302f..0000000
--- a/board/st-ericsson/u8500/prcmu.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * Copyright (C) 2009 ST-Ericsson SA
- *
- * Adapted from the Linux version:
- * Author: Kumar Sanghvi <kumar.sanghvi@stericsson.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.
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- */
-
-/*
- * NOTE: This currently does not support the I2C workaround access method.
- */
-
-#include <common.h>
-#include <config.h>
-#include <asm/io.h>
-#include <asm/arch/hardware.h>
-#include <asm/types.h>
-#include <asm/io.h>
-#include <asm/errno.h>
-
-#include "prcmu-fw.h"
-
-/* CPU mailbox registers */
-#define PRCM_MBOX_CPU_VAL (U8500_PRCMU_BASE + 0x0fc)
-#define PRCM_MBOX_CPU_SET (U8500_PRCMU_BASE + 0x100)
-#define PRCM_MBOX_CPU_CLR (U8500_PRCMU_BASE + 0x104)
-
-static int prcmu_is_ready(void)
-{
- int ready = readb(PRCM_XP70_CUR_PWR_STATE) == AP_EXECUTE;
- if (!ready)
- printf("PRCMU firmware not ready\n");
- return ready;
-}
-
-static int _wait_for_req_complete(int num)
-{
- int timeout = 1000;
-
- /* checking any already on-going transaction */
- while ((readl(PRCM_MBOX_CPU_VAL) & (1 << num)) && timeout--)
- ;
-
- timeout = 1000;
-
- /* Set an interrupt to XP70 */
- writel(1 << num, PRCM_MBOX_CPU_SET);
-
- while ((readl(PRCM_MBOX_CPU_VAL) & (1 << num)) && timeout--)
- ;
-
- if (!timeout) {
- printf("PRCMU operation timed out\n");
- return -1;
- }
-
- return 0;
-}
-
-/**
- * prcmu_i2c_read - PRCMU - 4500 communication using PRCMU I2C
- * @reg: - db8500 register bank to be accessed
- * @slave: - db8500 register to be accessed
- * Returns: ACK_MB5 value containing the status
- */
-int prcmu_i2c_read(u8 reg, u16 slave)
-{
- uint8_t i2c_status;
- uint8_t i2c_val;
-
- if (!prcmu_is_ready())
- return -1;
-
- debug("\nprcmu_4500_i2c_read:bank=%x;reg=%x;\n",
- reg, slave);
-
- /* prepare the data for mailbox 5 */
- writeb((reg << 1) | I2CREAD, PRCM_REQ_MB5_I2COPTYPE_REG);
- writeb((1 << 3) | 0x0, PRCM_REQ_MB5_BIT_FIELDS);
- writeb(slave, PRCM_REQ_MB5_I2CSLAVE);
- writeb(0, PRCM_REQ_MB5_I2CVAL);
-
- _wait_for_req_complete(REQ_MB5);
-
- /* retrieve values */
- debug("ack-mb5:transfer status = %x\n",
- readb(PRCM_ACK_MB5_STATUS));
- debug("ack-mb5:reg bank = %x\n", readb(PRCM_ACK_MB5) >> 1);
- debug("ack-mb5:slave_add = %x\n",
- readb(PRCM_ACK_MB5_SLAVE));
- debug("ack-mb5:reg_val = %d\n", readb(PRCM_ACK_MB5_VAL));
-
- i2c_status = readb(PRCM_ACK_MB5_STATUS);
- i2c_val = readb(PRCM_ACK_MB5_VAL);
-
- if (i2c_status == I2C_RD_OK)
- return i2c_val;
- else {
-
- printf("prcmu_i2c_read:read return status= %d\n",
- i2c_status);
- return -1;
- }
-
-}
-
-/**
- * prcmu_i2c_write - PRCMU-db8500 communication using PRCMU I2C
- * @reg: - db8500 register bank to be accessed
- * @slave: - db800 register to be written to
- * @reg_data: - the data to write
- * Returns: ACK_MB5 value containing the status
- */
-int prcmu_i2c_write(u8 reg, u16 slave, u8 reg_data)
-{
- uint8_t i2c_status;
-
- if (!prcmu_is_ready())
- return -1;
-
- debug("\nprcmu_4500_i2c_write:bank=%x;reg=%x;\n",
- reg, slave);
-
- /* prepare the data for mailbox 5 */
- writeb((reg << 1) | I2CWRITE, PRCM_REQ_MB5_I2COPTYPE_REG);
- writeb((1 << 3) | 0x0, PRCM_REQ_MB5_BIT_FIELDS);
- writeb(slave, PRCM_REQ_MB5_I2CSLAVE);
- writeb(reg_data, PRCM_REQ_MB5_I2CVAL);
-
- debug("\ncpu_is_u8500v11\n");
- _wait_for_req_complete(REQ_MB5);
-
- /* retrieve values */
- debug("ack-mb5:transfer status = %x\n",
- readb(PRCM_ACK_MB5_STATUS));
- debug("ack-mb5:reg bank = %x\n", readb(PRCM_ACK_MB5) >> 1);
- debug("ack-mb5:slave_add = %x\n",
- readb(PRCM_ACK_MB5_SLAVE));
- debug("ack-mb5:reg_val = %d\n", readb(PRCM_ACK_MB5_VAL));
-
- i2c_status = readb(PRCM_ACK_MB5_STATUS);
- debug("\ni2c_status = %x\n", i2c_status);
- if (i2c_status == I2C_WR_OK)
- return 0;
- else {
- printf("ape-i2c: i2c_status : 0x%x\n", i2c_status);
- return -1;
- }
-}
diff --git a/board/st-ericsson/u8500/u8500_href.c b/board/st-ericsson/u8500/u8500_href.c
index 5f85fdc..6e3fc87 100644
--- a/board/st-ericsson/u8500/u8500_href.c
+++ b/board/st-ericsson/u8500/u8500_href.c
@@ -27,7 +27,7 @@
#include <asm/arch/hardware.h>
#include <asm/arch/sys_proto.h>
#ifdef CONFIG_MMC
-#include "prcmu-fw.h"
+#include <asm/arch/prcmu.h>
#include "../../../drivers/mmc/arm_pl180_mmci.h"
#endif