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7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
151 lines
4.3 KiB
Diff
151 lines
4.3 KiB
Diff
From b37c8c275b90b3730ad99b0e96ae5e36895b26e8 Mon Sep 17 00:00:00 2001
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From: popcornmix <popcornmix@gmail.com>
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Date: Sun, 12 May 2013 12:24:19 +0100
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Subject: [PATCH] Main bcm2708/bcm2709 linux port
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Signed-off-by: popcornmix <popcornmix@gmail.com>
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Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
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bcm2709: Drop platform smp and timer init code
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irq-bcm2836 handles this through these functions:
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bcm2835_init_local_timer_frequency()
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bcm2836_arm_irqchip_smp_init()
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Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
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bcm270x: Use watchdog for reboot/poweroff
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The watchdog driver already has support for reboot/poweroff.
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Make use of this and remove the code from the platform files.
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Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
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board_bcm2835: Remove coherent dma pool increase - API has gone
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---
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arch/arm/mach-bcm/Kconfig | 1 +
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arch/arm/mm/proc-v6.S | 15 ++++++++++++---
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drivers/irqchip/irq-bcm2835.c | 7 ++++++-
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drivers/mailbox/bcm2835-mailbox.c | 18 ++++++++++++++++--
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4 files changed, 35 insertions(+), 6 deletions(-)
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--- a/arch/arm/mach-bcm/Kconfig
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+++ b/arch/arm/mach-bcm/Kconfig
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@@ -168,6 +168,7 @@ config ARCH_BCM2835
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select FIQ
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select PINCTRL
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select PINCTRL_BCM2835
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+ select MFD_SYSCON if ARCH_MULTI_V7
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help
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This enables support for the Broadcom BCM2835 and BCM2836 SoCs.
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This SoC is used in the Raspberry Pi and Roku 2 devices.
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--- a/arch/arm/mm/proc-v6.S
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+++ b/arch/arm/mm/proc-v6.S
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@@ -73,10 +73,19 @@ ENDPROC(cpu_v6_reset)
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*
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* IRQs are already disabled.
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*/
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+
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+/* See jira SW-5991 for details of this workaround */
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ENTRY(cpu_v6_do_idle)
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- mov r1, #0
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- mcr p15, 0, r1, c7, c10, 4 @ DWB - WFI may enter a low-power mode
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- mcr p15, 0, r1, c7, c0, 4 @ wait for interrupt
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+ .align 5
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+ mov r1, #2
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+1: subs r1, #1
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+ nop
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+ mcreq p15, 0, r1, c7, c10, 4 @ DWB - WFI may enter a low-power mode
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+ mcreq p15, 0, r1, c7, c0, 4 @ wait for interrupt
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+ nop
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+ nop
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+ nop
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+ bne 1b
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ret lr
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ENTRY(cpu_v6_dcache_clean_area)
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--- a/drivers/irqchip/irq-bcm2835.c
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+++ b/drivers/irqchip/irq-bcm2835.c
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@@ -52,7 +52,9 @@
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#include <linux/irqdomain.h>
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#include <asm/exception.h>
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+#ifndef CONFIG_ARM64
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#include <asm/mach/irq.h>
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+#endif
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/* Put the bank and irq (32 bits) into the hwirq */
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#define MAKE_HWIRQ(b, n) (((b) << 5) | (n))
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@@ -80,6 +82,7 @@
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#define NR_BANKS 3
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#define IRQS_PER_BANK 32
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#define NUMBER_IRQS MAKE_HWIRQ(NR_BANKS, 0)
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+#undef FIQ_START
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#define FIQ_START (NR_IRQS_BANK0 + MAKE_HWIRQ(NR_BANKS - 1, 0))
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static const int reg_pending[] __initconst = { 0x00, 0x04, 0x08 };
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@@ -247,10 +250,12 @@ static int __init armctrl_of_init(struct
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MAKE_HWIRQ(b, i) + NUMBER_IRQS);
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BUG_ON(irq <= 0);
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irq_set_chip(irq, &armctrl_chip);
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- set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
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+ irq_set_probe(irq);
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}
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}
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+#ifndef CONFIG_ARM64
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init_FIQ(FIQ_START);
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+#endif
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return 0;
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}
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--- a/drivers/mailbox/bcm2835-mailbox.c
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+++ b/drivers/mailbox/bcm2835-mailbox.c
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@@ -51,12 +51,15 @@
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#define MAIL1_WRT (ARM_0_MAIL1 + 0x00)
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#define MAIL1_STA (ARM_0_MAIL1 + 0x18)
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+/* On ARCH_BCM270x these come through <linux/interrupt.h> (arm_control.h ) */
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+#ifndef ARM_MS_FULL
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/* Status register: FIFO state. */
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#define ARM_MS_FULL BIT(31)
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#define ARM_MS_EMPTY BIT(30)
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/* Configuration register: Enable interrupts. */
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#define ARM_MC_IHAVEDATAIRQEN BIT(0)
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+#endif
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struct bcm2835_mbox {
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void __iomem *regs;
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@@ -151,7 +154,7 @@ static int bcm2835_mbox_probe(struct pla
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return -ENOMEM;
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spin_lock_init(&mbox->lock);
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- ret = devm_request_irq(dev, irq_of_parse_and_map(dev->of_node, 0),
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+ ret = devm_request_irq(dev, platform_get_irq(pdev, 0),
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bcm2835_mbox_irq, 0, dev_name(dev), mbox);
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if (ret) {
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dev_err(dev, "Failed to register a mailbox IRQ handler: %d\n",
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@@ -209,7 +212,18 @@ static struct platform_driver bcm2835_mb
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.probe = bcm2835_mbox_probe,
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.remove = bcm2835_mbox_remove,
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};
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-module_platform_driver(bcm2835_mbox_driver);
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+
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+static int __init bcm2835_mbox_init(void)
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+{
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+ return platform_driver_register(&bcm2835_mbox_driver);
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+}
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+arch_initcall(bcm2835_mbox_init);
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+
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+static void __init bcm2835_mbox_exit(void)
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+{
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+ platform_driver_unregister(&bcm2835_mbox_driver);
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+}
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+module_exit(bcm2835_mbox_exit);
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MODULE_AUTHOR("Lubomir Rintel <lkundrak@v3.sk>");
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MODULE_DESCRIPTION("BCM2835 mailbox IPC driver");
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