diff options
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/arm1176/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/arm1176/bcm2835/Kconfig | 12 | ||||
| -rw-r--r-- | arch/arm/cpu/arm1176/bcm2835/Makefile | 8 | ||||
| -rw-r--r-- | arch/arm/cpu/arm1176/bcm2835/init.c | 24 | ||||
| -rw-r--r-- | arch/arm/cpu/arm1176/bcm2835/lowlevel_init.S | 19 | ||||
| -rw-r--r-- | arch/arm/cpu/arm1176/bcm2835/mbox.c | 153 | ||||
| -rw-r--r-- | arch/arm/cpu/arm1176/bcm2835/reset.c | 35 | ||||
| -rw-r--r-- | arch/arm/cpu/arm1176/bcm2835/timer.c | 58 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/bcm2835/Makefile | 13 |
10 files changed, 0 insertions, 325 deletions
diff --git a/arch/arm/cpu/arm1176/Makefile b/arch/arm/cpu/arm1176/Makefile index 480e130..deec427 100644 --- a/arch/arm/cpu/arm1176/Makefile +++ b/arch/arm/cpu/arm1176/Makefile @@ -10,5 +10,3 @@ extra-y = start.o obj-y = cpu.o - -obj-$(CONFIG_BCM2835) += bcm2835/ diff --git a/arch/arm/cpu/arm1176/bcm2835/Kconfig b/arch/arm/cpu/arm1176/bcm2835/Kconfig deleted file mode 100644 index 73cc72b..0000000 --- a/arch/arm/cpu/arm1176/bcm2835/Kconfig +++ /dev/null @@ -1,12 +0,0 @@ -if TARGET_RPI || TARGET_RPI_2 - -config DM - default y - -config DM_SERIAL - default y - -config DM_GPIO - default y - -endif diff --git a/arch/arm/cpu/arm1176/bcm2835/Makefile b/arch/arm/cpu/arm1176/bcm2835/Makefile deleted file mode 100644 index 7e5dbe1..0000000 --- a/arch/arm/cpu/arm1176/bcm2835/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# -# (C) Copyright 2012 Stephen Warren -# -# SPDX-License-Identifier: GPL-2.0 -# - -obj-y := lowlevel_init.o -obj-y += init.o reset.o timer.o mbox.o diff --git a/arch/arm/cpu/arm1176/bcm2835/init.c b/arch/arm/cpu/arm1176/bcm2835/init.c deleted file mode 100644 index e90d3bb..0000000 --- a/arch/arm/cpu/arm1176/bcm2835/init.c +++ /dev/null @@ -1,24 +0,0 @@ -/* - * (C) Copyright 2012 Stephen Warren - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * 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. - */ - -#include <common.h> - -int arch_cpu_init(void) -{ - icache_enable(); - - return 0; -} diff --git a/arch/arm/cpu/arm1176/bcm2835/lowlevel_init.S b/arch/arm/cpu/arm1176/bcm2835/lowlevel_init.S deleted file mode 100644 index c7b0843..0000000 --- a/arch/arm/cpu/arm1176/bcm2835/lowlevel_init.S +++ /dev/null @@ -1,19 +0,0 @@ -/* - * (C) Copyright 2012 Stephen Warren - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * 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. - */ - -.globl lowlevel_init -lowlevel_init: - mov pc, lr diff --git a/arch/arm/cpu/arm1176/bcm2835/mbox.c b/arch/arm/cpu/arm1176/bcm2835/mbox.c deleted file mode 100644 index 3b17a31..0000000 --- a/arch/arm/cpu/arm1176/bcm2835/mbox.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * (C) Copyright 2012 Stephen Warren - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/mbox.h> - -#define TIMEOUT 1000 /* ms */ - -int bcm2835_mbox_call_raw(u32 chan, u32 send, u32 *recv) -{ - struct bcm2835_mbox_regs *regs = - (struct bcm2835_mbox_regs *)BCM2835_MBOX_PHYSADDR; - ulong endtime = get_timer(0) + TIMEOUT; - u32 val; - - debug("time: %lu timeout: %lu\n", get_timer(0), endtime); - - if (send & BCM2835_CHAN_MASK) { - printf("mbox: Illegal mbox data 0x%08x\n", send); - return -1; - } - - /* Drain any stale responses */ - - for (;;) { - val = readl(®s->status); - if (val & BCM2835_MBOX_STATUS_RD_EMPTY) - break; - if (get_timer(0) >= endtime) { - printf("mbox: Timeout draining stale responses\n"); - return -1; - } - val = readl(®s->read); - } - - /* Wait for space to send */ - - for (;;) { - val = readl(®s->status); - if (!(val & BCM2835_MBOX_STATUS_WR_FULL)) - break; - if (get_timer(0) >= endtime) { - printf("mbox: Timeout waiting for send space\n"); - return -1; - } - } - - /* Send the request */ - - val = BCM2835_MBOX_PACK(chan, send); - debug("mbox: TX raw: 0x%08x\n", val); - writel(val, ®s->write); - - /* Wait for the response */ - - for (;;) { - val = readl(®s->status); - if (!(val & BCM2835_MBOX_STATUS_RD_EMPTY)) - break; - if (get_timer(0) >= endtime) { - printf("mbox: Timeout waiting for response\n"); - return -1; - } - } - - /* Read the response */ - - val = readl(®s->read); - debug("mbox: RX raw: 0x%08x\n", val); - - /* Validate the response */ - - if (BCM2835_MBOX_UNPACK_CHAN(val) != chan) { - printf("mbox: Response channel mismatch\n"); - return -1; - } - - *recv = BCM2835_MBOX_UNPACK_DATA(val); - - return 0; -} - -#ifdef DEBUG -void dump_buf(struct bcm2835_mbox_hdr *buffer) -{ - u32 *p; - u32 words; - int i; - - p = (u32 *)buffer; - words = buffer->buf_size / 4; - for (i = 0; i < words; i++) - printf(" 0x%04x: 0x%08x\n", i * 4, p[i]); -} -#endif - -int bcm2835_mbox_call_prop(u32 chan, struct bcm2835_mbox_hdr *buffer) -{ - int ret; - u32 rbuffer; - struct bcm2835_mbox_tag_hdr *tag; - int tag_index; - -#ifdef DEBUG - printf("mbox: TX buffer\n"); - dump_buf(buffer); -#endif - - ret = bcm2835_mbox_call_raw(chan, (u32)buffer, &rbuffer); - if (ret) - return ret; - if (rbuffer != (u32)buffer) { - printf("mbox: Response buffer mismatch\n"); - return -1; - } - -#ifdef DEBUG - printf("mbox: RX buffer\n"); - dump_buf(buffer); -#endif - - /* Validate overall response status */ - - if (buffer->code != BCM2835_MBOX_RESP_CODE_SUCCESS) { - printf("mbox: Header response code invalid\n"); - return -1; - } - - /* Validate each tag's response status */ - - tag = (void *)(buffer + 1); - tag_index = 0; - while (tag->tag) { - if (!(tag->val_len & BCM2835_MBOX_TAG_VAL_LEN_RESPONSE)) { - printf("mbox: Tag %d missing val_len response bit\n", - tag_index); - return -1; - } - /* - * Clear the reponse bit so clients can just look right at the - * length field without extra processing - */ - tag->val_len &= ~BCM2835_MBOX_TAG_VAL_LEN_RESPONSE; - tag = (void *)(((u8 *)tag) + sizeof(*tag) + tag->val_buf_size); - tag_index++; - } - - return 0; -} diff --git a/arch/arm/cpu/arm1176/bcm2835/reset.c b/arch/arm/cpu/arm1176/bcm2835/reset.c deleted file mode 100644 index 8c37ad9..0000000 --- a/arch/arm/cpu/arm1176/bcm2835/reset.c +++ /dev/null @@ -1,35 +0,0 @@ -/* - * (C) Copyright 2012 Stephen Warren - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * 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. - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/wdog.h> - -#define RESET_TIMEOUT 10 - -void reset_cpu(ulong addr) -{ - struct bcm2835_wdog_regs *regs = - (struct bcm2835_wdog_regs *)BCM2835_WDOG_PHYSADDR; - uint32_t rstc; - - rstc = readl(®s->rstc); - rstc &= ~BCM2835_WDOG_RSTC_WRCFG_MASK; - rstc |= BCM2835_WDOG_RSTC_WRCFG_FULL_RESET; - - writel(BCM2835_WDOG_PASSWORD | RESET_TIMEOUT, ®s->wdog); - writel(BCM2835_WDOG_PASSWORD | rstc, ®s->rstc); -} diff --git a/arch/arm/cpu/arm1176/bcm2835/timer.c b/arch/arm/cpu/arm1176/bcm2835/timer.c deleted file mode 100644 index 017907c..0000000 --- a/arch/arm/cpu/arm1176/bcm2835/timer.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * (C) Copyright 2012 Stephen Warren - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * 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. - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/timer.h> - -ulong get_timer_us(ulong base) -{ - struct bcm2835_timer_regs *regs = - (struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR; - - return readl(®s->clo) - base; -} - -ulong get_timer(ulong base) -{ - ulong us = get_timer_us(0); - us /= (1000000 / CONFIG_SYS_HZ); - us -= base; - return us; -} - -unsigned long long get_ticks(void) -{ - return get_timer(0); -} - -ulong get_tbclk(void) -{ - return CONFIG_SYS_HZ; -} - -void __udelay(unsigned long usec) -{ - ulong endtime; - signed long diff; - - endtime = get_timer_us(0) + usec; - - do { - ulong now = get_timer_us(0); - diff = endtime - now; - } while (diff >= 0); -} diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile index 1312a9d..21fc03b 100644 --- a/arch/arm/cpu/armv7/Makefile +++ b/arch/arm/cpu/armv7/Makefile @@ -39,7 +39,6 @@ endif obj-$(if $(filter am33xx,$(SOC)),y) += am33xx/ obj-$(if $(filter armada-xp,$(SOC)),y) += armada-xp/ -obj-$(CONFIG_BCM2835) += bcm2835/ obj-$(if $(filter bcm281xx,$(SOC)),y) += bcm281xx/ obj-$(if $(filter bcmcygnus,$(SOC)),y) += bcmcygnus/ obj-$(if $(filter bcmnsp,$(SOC)),y) += bcmnsp/ diff --git a/arch/arm/cpu/armv7/bcm2835/Makefile b/arch/arm/cpu/armv7/bcm2835/Makefile deleted file mode 100644 index ed1ee47..0000000 --- a/arch/arm/cpu/armv7/bcm2835/Makefile +++ /dev/null @@ -1,13 +0,0 @@ -# -# (C) Copyright 2012 Stephen Warren -# -# SPDX-License-Identifier: GPL-2.0+ -# - -src_dir := ../../arm1176/bcm2835/ - -obj-y := -obj-y += $(src_dir)/init.o -obj-y += $(src_dir)/reset.o -obj-y += $(src_dir)/timer.o -obj-y += $(src_dir)/mbox.o |