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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-08 21:13:04 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-08 21:13:04 (GMT)
commitcf377ad7d42c566356d79049536d9cb37499cb77 (patch)
tree266371ff3a9462dcbaa9567e20c9a34722e3b32f /arch/arm/include/debug/bcm63xx.S
parent212fe84a6f215c39795a76517c1c02114d428681 (diff)
parentd8f0faa339b0beff6e055218e10b2982422db540 (diff)
downloadlinux-cf377ad7d42c566356d79049536d9cb37499cb77.tar.xz
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform changes from Arnd Bergmann: "New and updated SoC support. Among the things new for this release are: - at91: Added support for the new SAMA5D4 SoC, following the earlier SAMA5D3 - bcm: Added support for BCM63XX family of DSL SoCs - hisi: Added support for HiP04 server-class SoC - meson: Initial support for the Amlogic Meson6 (aka 8726MX) platform - shmobile: added support for new r8a7794 (R-Car E2) automotive SoC Noteworthy changes to existing SoC support are: - imx: convert i.MX1 to device tree - omap: lots of power management work - omap: base support to enable moving to standard UART driver - shmobile: lots of progress for multiplatform support, still ongoing" * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (171 commits) ARM: hisi: depend on ARCH_MULTI_V7 CNS3xxx: Fix debug UART. ARM: at91: fix nommu build regression ARM: meson: add basic support for MesonX SoCs ARM: meson: debug: add debug UART for earlyprintk support irq: Export handle_fasteoi_irq ARM: mediatek: Add earlyprintk support for mt6589 ARM: hisi: Fix platmcpm compilation when ARMv6 is selected ARM: debug: fix alphanumerical order on debug uarts ARM: at91: document Atmel SMART compatibles ARM: at91: add sama5d4 support to sama5_defconfig ARM: at91: dt: add device tree file for SAMA5D4ek board ARM: at91: dt: add device tree file for SAMA5D4 SoC ARM: at91: SAMA5D4 SoC detection code and low level routines ARM: at91: introduce basic SAMA5D4 support clk: at91: add a driver for the h32mx clock ARM: pxa3xx: provide specific platform_devices for all ssp ports ARM: pxa: ssp: provide platform_device_id for PXA3xx ARM: OMAP4+: Remove static iotable mappings for SRAM ARM: OMAP4+: Move SRAM data to DT ...
Diffstat (limited to 'arch/arm/include/debug/bcm63xx.S')
-rw-r--r--arch/arm/include/debug/bcm63xx.S33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/include/debug/bcm63xx.S b/arch/arm/include/debug/bcm63xx.S
new file mode 100644
index 0000000..e7164d5
--- /dev/null
+++ b/arch/arm/include/debug/bcm63xx.S
@@ -0,0 +1,33 @@
+/*
+ * Broadcom BCM63xx low-level UART debug
+ *
+ * Copyright (C) 2014 Broadcom Corporation
+ *
+ * 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.
+ */
+
+#include <linux/serial_bcm63xx.h>
+
+ .macro addruart, rp, rv, tmp
+ ldr \rp, =CONFIG_DEBUG_UART_PHYS
+ ldr \rv, =CONFIG_DEBUG_UART_VIRT
+ .endm
+
+ .macro senduart, rd, rx
+ /* word access do not work */
+ strb \rd, [\rx, #UART_FIFO_REG]
+ .endm
+
+ .macro waituart, rd, rx
+1001: ldr \rd, [\rx, #UART_IR_REG]
+ tst \rd, #(1 << UART_IR_TXEMPTY)
+ beq 1001b
+ .endm
+
+ .macro busyuart, rd, rx
+1002: ldr \rd, [\rx, #UART_IR_REG]
+ tst \rd, #(1 << UART_IR_TXTRESH)
+ beq 1002b
+ .endm