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-rw-r--r--arch/arm/cpu/armv7/Makefile1
-rw-r--r--arch/arm/cpu/armv7/u8500/Makefile9
-rw-r--r--arch/arm/cpu/armv7/u8500/clock.c74
-rw-r--r--arch/arm/cpu/armv7/u8500/cpu.c176
-rw-r--r--arch/arm/cpu/armv7/u8500/lowlevel.S21
-rw-r--r--arch/arm/cpu/armv7/u8500/prcmu.c214
-rw-r--r--arch/arm/cpu/armv7/u8500/timer.c135
7 files changed, 0 insertions, 630 deletions
diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile
index 79a38df..c8d1422 100644
--- a/arch/arm/cpu/armv7/Makefile
+++ b/arch/arm/cpu/armv7/Makefile
@@ -52,5 +52,4 @@ obj-$(CONFIG_RMOBILE) += rmobile/
obj-$(CONFIG_ARCH_S5PC1XX) += s5pc1xx/
obj-$(if $(filter stv0991,$(SOC)),y) += stv0991/
obj-$(CONFIG_ARCH_SUNXI) += sunxi/
-obj-$(CONFIG_U8500) += u8500/
obj-$(CONFIG_VF610) += vf610/
diff --git a/arch/arm/cpu/armv7/u8500/Makefile b/arch/arm/cpu/armv7/u8500/Makefile
deleted file mode 100644
index fad9d4a..0000000
--- a/arch/arm/cpu/armv7/u8500/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# (C) Copyright 2000-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-obj-y := timer.o clock.o prcmu.o cpu.o
-obj-y += lowlevel.o
diff --git a/arch/arm/cpu/armv7/u8500/clock.c b/arch/arm/cpu/armv7/u8500/clock.c
deleted file mode 100644
index 1e3b3d5..0000000
--- a/arch/arm/cpu/armv7/u8500/clock.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * (C) Copyright 2009 ST-Ericsson
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/arch/hardware.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-struct clkrst {
- unsigned int pcken;
- unsigned int pckdis;
- unsigned int kcken;
- unsigned int kckdis;
-};
-
-static unsigned int clkrst_base[] = {
- U8500_CLKRST1_BASE,
- U8500_CLKRST2_BASE,
- U8500_CLKRST3_BASE,
- 0,
- U8500_CLKRST5_BASE,
- U8500_CLKRST6_BASE,
- U8500_CLKRST7_BASE, /* ED only */
-};
-
-/* Turn on peripheral clock at PRCC level */
-void u8500_clock_enable(int periph, int cluster, int kern)
-{
- struct clkrst *clkrst = (struct clkrst *) clkrst_base[periph - 1];
-
- if (kern != -1)
- writel(1 << kern, &clkrst->kcken);
-
- if (cluster != -1)
- writel(1 << cluster, &clkrst->pcken);
-}
-
-void db8500_clocks_init(void)
-{
- /*
- * Enable all clocks. This is u-boot, we can enable it all. There is no
- * powersave in u-boot.
- */
-
- u8500_clock_enable(1, 9, -1); /* GPIO0 */
- u8500_clock_enable(2, 11, -1);/* GPIO1 */
- u8500_clock_enable(3, 8, -1); /* GPIO2 */
- u8500_clock_enable(5, 1, -1); /* GPIO3 */
- u8500_clock_enable(3, 6, 6); /* UART2 */
- u8500_clock_enable(3, 3, 3); /* I2C0 */
- u8500_clock_enable(1, 5, 5); /* SDI0 */
- u8500_clock_enable(2, 4, 2); /* SDI4 */
- u8500_clock_enable(6, 6, -1); /* MTU0 */
- u8500_clock_enable(3, 4, 4); /* SDI2 */
-
- /*
- * Enabling clocks for all devices which are AMBA devices in the
- * kernel. Otherwise they will not get probe()'d because the
- * peripheral ID register will not be powered.
- */
-
- /* XXX: some of these differ between ED/V1 */
-
- u8500_clock_enable(1, 1, 1); /* UART1 */
- u8500_clock_enable(1, 0, 0); /* UART0 */
- u8500_clock_enable(3, 2, 2); /* SSP1 */
- u8500_clock_enable(3, 1, 1); /* SSP0 */
- u8500_clock_enable(2, 8, -1); /* SPI0 */
- u8500_clock_enable(2, 5, 3); /* MSP2 */
-}
diff --git a/arch/arm/cpu/armv7/u8500/cpu.c b/arch/arm/cpu/armv7/u8500/cpu.c
deleted file mode 100644
index d8634be..0000000
--- a/arch/arm/cpu/armv7/u8500/cpu.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * Copyright (C) 2012 Linaro Limited
- * Mathieu Poirier <mathieu.poirier@linaro.org>
- *
- * Based on original code from Joakim Axelsson at ST-Ericsson
- * (C) Copyright 2010 ST-Ericsson
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/arch/prcmu.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/hardware.h>
-
-#include <asm/arch/hardware.h>
-
-#define CPUID_DB8500V1 0x411fc091
-#define CPUID_DB8500V2 0x412fc091
-#define ASICID_DB8500V11 0x008500A1
-
-#define CACHE_CONTR_BASE 0xA0412000
-/* Cache controller register offsets
- * as found in ARM's technical reference manual
- */
-#define CACHE_INVAL_BY_WAY (CACHE_CONTR_BASE + 0x77C)
-#define CACHE_LOCKDOWN_BY_D (CACHE_CONTR_BASE + 0X900)
-#define CACHE_LOCKDOWN_BY_I (CACHE_CONTR_BASE + 0X904)
-
-static unsigned int read_asicid(void);
-
-static inline unsigned int read_cpuid(void)
-{
- unsigned int val;
-
- /* Main ID register (MIDR) */
- asm("mrc p15, 0, %0, c0, c0, 0"
- : "=r" (val)
- :
- : "cc");
-
- return val;
-}
-
-static int cpu_is_u8500v11(void)
-{
- return read_asicid() == ASICID_DB8500V11;
-}
-
-static int cpu_is_u8500v2(void)
-{
- return read_cpuid() == CPUID_DB8500V2;
-}
-
-static unsigned int read_asicid(void)
-{
- unsigned int *address;
-
- if (cpu_is_u8500v2())
- address = (void *) U8500_ASIC_ID_LOC_V2;
- else
- address = (void *) U8500_ASIC_ID_LOC_ED_V1;
-
- return readl(address);
-}
-
-void cpu_cache_initialization(void)
-{
- unsigned int value;
- /* invalidate all cache entries */
- writel(0xFFFF, CACHE_INVAL_BY_WAY);
-
- /* ways are set to '0' when they are totally
- * cleaned and invalidated
- */
- do {
- value = readl(CACHE_INVAL_BY_WAY);
- } while (value & 0xFF);
-
- /* Invalidate register 9 D and I lockdown */
- writel(0xFF, CACHE_LOCKDOWN_BY_D);
- writel(0xFF, CACHE_LOCKDOWN_BY_I);
-}
-
-#ifdef CONFIG_ARCH_CPU_INIT
-/*
- * SOC specific cpu init
- */
-int arch_cpu_init(void)
-{
- db8500_prcmu_init();
- db8500_clocks_init();
-
- return 0;
-}
-#endif /* CONFIG_ARCH_CPU_INIT */
-
-#ifdef CONFIG_MMC
-
-int u8500_mmc_power_init(void)
-{
- int ret;
- int enable, voltage;
- int ab8500_revision;
-
- if (!cpu_is_u8500v11() && !cpu_is_u8500v2())
- return 0;
-
- /* Get AB8500 revision */
- ret = ab8500_read(AB8500_MISC, AB8500_REV_REG);
- if (ret < 0)
- goto out;
-
- ab8500_revision = ret;
-
- /*
- * On v1.1 HREF boards (HREF+), Vaux3 needs to be enabled for the SD
- * card to work. This is done by enabling the regulators in the AB8500
- * via PRCMU I2C transactions.
- *
- * This code is derived from the handling of AB8500_LDO_VAUX3 in
- * ab8500_ldo_enable() and ab8500_ldo_disable() in Linux.
- *
- * Turn off and delay is required to have it work across soft reboots.
- */
-
- /* Turn off (read-modify-write) */
- ret = ab8500_read(AB8500_REGU_CTRL2,
- AB8500_REGU_VRF1VAUX3_REGU_REG);
- if (ret < 0)
- goto out;
-
- enable = ret;
-
- /* Turn off */
- ret = ab8500_write(AB8500_REGU_CTRL2,
- AB8500_REGU_VRF1VAUX3_REGU_REG,
- enable & ~LDO_VAUX3_ENABLE_MASK);
- if (ret < 0)
- goto out;
-
- udelay(10 * 1000);
-
- /* Set the voltage to 2.91 V or 2.9 V without overriding VRF1 value */
- ret = ab8500_read(AB8500_REGU_CTRL2,
- AB8500_REGU_VRF1VAUX3_SEL_REG);
- if (ret < 0)
- goto out;
-
- voltage = ret;
-
- if (ab8500_revision < 0x20) {
- voltage &= ~LDO_VAUX3_SEL_MASK;
- voltage |= LDO_VAUX3_SEL_2V9;
- } else {
- voltage &= ~LDO_VAUX3_V2_SEL_MASK;
- voltage |= LDO_VAUX3_V2_SEL_2V91;
- }
-
- ret = ab8500_write(AB8500_REGU_CTRL2,
- AB8500_REGU_VRF1VAUX3_SEL_REG, voltage);
- if (ret < 0)
- goto out;
-
- /* Turn on the supply */
- enable &= ~LDO_VAUX3_ENABLE_MASK;
- enable |= LDO_VAUX3_ENABLE_VAL;
-
- ret = ab8500_write(AB8500_REGU_CTRL2,
- AB8500_REGU_VRF1VAUX3_REGU_REG, enable);
-
-out:
- return ret;
-}
-#endif /* CONFIG_MMC */
diff --git a/arch/arm/cpu/armv7/u8500/lowlevel.S b/arch/arm/cpu/armv7/u8500/lowlevel.S
deleted file mode 100644
index d3e3920..0000000
--- a/arch/arm/cpu/armv7/u8500/lowlevel.S
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * (C) Copyright 2011 ST-Ericsson
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <config.h>
-#include <linux/linkage.h>
-
-ENTRY(lowlevel_init)
- mov pc, lr
-ENDPROC(lowlevel_init)
-
- .align 5
-ENTRY(reset_cpu)
- ldr r0, =CFG_PRCMU_BASE
- ldr r1, =0x1
- str r1, [r0, #0x228]
-_loop_forever:
- b _loop_forever
-ENDPROC(reset_cpu)
diff --git a/arch/arm/cpu/armv7/u8500/prcmu.c b/arch/arm/cpu/armv7/u8500/prcmu.c
deleted file mode 100644
index 26ffdc2..0000000
--- a/arch/arm/cpu/armv7/u8500/prcmu.c
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
- * Copyright (C) 2009 ST-Ericsson SA
- *
- * Adapted from the Linux version:
- * Author: Kumar Sanghvi <kumar.sanghvi@stericsson.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/*
- * 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 <asm/arch/prcmu.h>
-
-/* CPU mailbox registers */
-#define PRCMU_I2C_WRITE(slave) \
- (((slave) << 1) | I2CWRITE | (1 << 6))
-#define PRCMU_I2C_READ(slave) \
- (((slave) << 1) | I2CREAD | (1 << 6))
-
-#define I2C_MBOX_BIT (1 << 5)
-
-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_i2c_mbx_rdy(void)
-{
- int timeout = 10000;
-
- if (readl(PRCM_ARM_IT1_VAL) & I2C_MBOX_BIT) {
- printf("prcmu: warning i2c mailbox was not acked\n");
- /* clear mailbox 5 ack irq */
- writel(I2C_MBOX_BIT, PRCM_ARM_IT1_CLEAR);
- }
-
- /* check any already on-going transaction */
- while ((readl(PRCM_MBOX_CPU_VAL) & I2C_MBOX_BIT) && timeout)
- timeout--;
-
- if (timeout == 0)
- return -1;
-
- return 0;
-}
-
-static int wait_for_i2c_req_done(void)
-{
- int timeout = 10000;
-
- /* Set an interrupt to XP70 */
- writel(I2C_MBOX_BIT, PRCM_MBOX_CPU_SET);
-
- /* wait for mailbox 5 (i2c) ack */
- while (!(readl(PRCM_ARM_IT1_VAL) & I2C_MBOX_BIT) && timeout)
- timeout--;
-
- if (timeout == 0)
- 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;
- int ret;
-
- if (!prcmu_is_ready())
- return -1;
-
- debug("\nprcmu_4500_i2c_read:bank=%x;reg=%x;\n",
- reg, slave);
-
- ret = wait_for_i2c_mbx_rdy();
- if (ret) {
- printf("prcmu_i2c_read: mailbox became not ready\n");
- return ret;
- }
-
- /* prepare the data for mailbox 5 */
- writeb(PRCMU_I2C_READ(reg), 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);
-
- ret = wait_for_i2c_req_done();
- if (ret) {
- printf("prcmu_i2c_read: mailbox request timed out\n");
- return ret;
- }
-
- /* 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);
- /* clear mailbox 5 ack irq */
- writel(I2C_MBOX_BIT, PRCM_ARM_IT1_CLEAR);
-
- if (i2c_status == I2C_RD_OK)
- return i2c_val;
-
- 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;
- int ret;
-
- if (!prcmu_is_ready())
- return -1;
-
- debug("\nprcmu_4500_i2c_write:bank=%x;reg=%x;\n",
- reg, slave);
-
- ret = wait_for_i2c_mbx_rdy();
- if (ret) {
- printf("prcmu_i2c_write: mailbox became not ready\n");
- return ret;
- }
-
- /* prepare the data for mailbox 5 */
- writeb(PRCMU_I2C_WRITE(reg), 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);
-
- ret = wait_for_i2c_req_done();
- if (ret) {
- printf("prcmu_i2c_write: mailbox request timed out\n");
- return ret;
- }
-
- /* 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);
- /* clear mailbox 5 ack irq */
- writel(I2C_MBOX_BIT, PRCM_ARM_IT1_CLEAR);
-
- if (i2c_status == I2C_WR_OK)
- return 0;
-
- printf("%s: i2c_status : 0x%x\n", __func__, i2c_status);
- return -1;
-}
-
-void u8500_prcmu_enable(u32 *reg)
-{
- writel(readl(reg) | (1 << 8), reg);
-}
-
-void db8500_prcmu_init(void)
-{
- /* Enable timers */
- writel(1 << 17, PRCM_TCR);
-
- u8500_prcmu_enable((u32 *)PRCM_PER1CLK_MGT_REG);
- u8500_prcmu_enable((u32 *)PRCM_PER2CLK_MGT_REG);
- u8500_prcmu_enable((u32 *)PRCM_PER3CLK_MGT_REG);
- /* PER4CLK does not exist */
- u8500_prcmu_enable((u32 *)PRCM_PER5CLK_MGT_REG);
- u8500_prcmu_enable((u32 *)PRCM_PER6CLK_MGT_REG);
- /* Only exists in ED but is always ok to write to */
- u8500_prcmu_enable((u32 *)PRCM_PER7CLK_MGT_REG);
-
- u8500_prcmu_enable((u32 *)PRCM_UARTCLK_MGT_REG);
- u8500_prcmu_enable((u32 *)PRCM_I2CCLK_MGT_REG);
-
- u8500_prcmu_enable((u32 *)PRCM_SDMMCCLK_MGT_REG);
-
- /* Clean up the mailbox interrupts after pre-u-boot code. */
- writel(I2C_MBOX_BIT, PRCM_ARM_IT1_CLEAR);
-}
diff --git a/arch/arm/cpu/armv7/u8500/timer.c b/arch/arm/cpu/armv7/u8500/timer.c
deleted file mode 100644
index 6b74e13..0000000
--- a/arch/arm/cpu/armv7/u8500/timer.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Copyright (C) 2010 Linaro Limited
- * John Rigby <john.rigby@linaro.org>
- *
- * Based on original from Linux kernel source and
- * internal ST-Ericsson U-Boot source.
- * (C) Copyright 2009 Alessandro Rubini
- * (C) Copyright 2010 ST-Ericsson
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/arch/hardware.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/*
- * The MTU device has some interrupt control registers
- * followed by 4 timers.
- */
-
-/* The timers */
-struct u8500_mtu_timer {
- u32 lr; /* Load value */
- u32 cv; /* Current value */
- u32 cr; /* Control reg */
- u32 bglr; /* ??? */
-};
-
-/* The MTU that contains the timers */
-struct u8500_mtu {
- u32 imsc; /* Interrupt mask set/clear */
- u32 ris; /* Raw interrupt status */
- u32 mis; /* Masked interrupt status */
- u32 icr; /* Interrupt clear register */
- struct u8500_mtu_timer pt[4];
-};
-
-/* bits for the control register */
-#define MTU_CR_ONESHOT 0x01 /* if 0 = wraps reloading from BGLR */
-#define MTU_CR_32BITS 0x02
-
-#define MTU_CR_PRESCALE_1 0x00
-#define MTU_CR_PRESCALE_16 0x04
-#define MTU_CR_PRESCALE_256 0x08
-#define MTU_CR_PRESCALE_MASK 0x0c
-
-#define MTU_CR_PERIODIC 0x40 /* if 0 = free-running */
-#define MTU_CR_ENA 0x80
-
-/*
- * The MTU is clocked at 133 MHz by default. (V1 and later)
- */
-#define TIMER_CLOCK (133 * 1000 * 1000 / 16)
-#define COUNT_TO_USEC(x) ((x) * 16 / 133)
-#define USEC_TO_COUNT(x) ((x) * 133 / 16)
-#define TICKS_PER_HZ (TIMER_CLOCK / CONFIG_SYS_HZ)
-#define TICKS_TO_HZ(x) ((x) / TICKS_PER_HZ)
-#define TIMER_LOAD_VAL 0xffffffff
-
-/*
- * MTU timer to use (from 0 to 3).
- */
-#define MTU_TIMER 2
-
-static struct u8500_mtu_timer *timer_base =
- &((struct u8500_mtu *)U8500_MTU0_BASE_V1)->pt[MTU_TIMER];
-
-/* macro to read the 32 bit timer: since it decrements, we invert read value */
-#define READ_TIMER() (~readl(&timer_base->cv))
-
-/* Configure a free-running, auto-wrap counter with /16 prescaler */
-int timer_init(void)
-{
- writel(MTU_CR_ENA | MTU_CR_PRESCALE_16 | MTU_CR_32BITS,
- &timer_base->cr);
- return 0;
-}
-
-ulong get_timer_masked(void)
-{
- /* current tick value */
- ulong now = TICKS_TO_HZ(READ_TIMER());
-
- if (now >= gd->arch.lastinc) { /* normal (non rollover) */
- gd->arch.tbl += (now - gd->arch.lastinc);
- } else { /* rollover */
- gd->arch.tbl += (TICKS_TO_HZ(TIMER_LOAD_VAL) -
- gd->arch.lastinc) + now;
- }
- gd->arch.lastinc = now;
- return gd->arch.tbl;
-}
-
-/* Delay x useconds */
-void __udelay(ulong usec)
-{
- long tmo = usec * (TIMER_CLOCK / 1000) / 1000;
- ulong now, last = READ_TIMER();
-
- while (tmo > 0) {
- now = READ_TIMER();
- if (now > last) /* normal (non rollover) */
- tmo -= now - last;
- else /* rollover */
- tmo -= TIMER_LOAD_VAL - last + now;
- last = now;
- }
-}
-
-ulong get_timer(ulong base)
-{
- return get_timer_masked() - base;
-}
-
-/*
- * Emulation of Power architecture long long timebase.
- *
- * TODO: Support gd->arch.tbu for real long long timebase.
- */
-unsigned long long get_ticks(void)
-{
- return get_timer(0);
-}
-
-/*
- * Emulation of Power architecture timebase.
- * NB: Low resolution compared to Power tbclk.
- */
-ulong get_tbclk(void)
-{
- return CONFIG_SYS_HZ;
-}