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Diffstat (limited to 'board/st-ericsson/u8500/prcmu.c')
-rw-r--r--board/st-ericsson/u8500/prcmu.c165
1 files changed, 0 insertions, 165 deletions
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;
- }
-}