[Xen-devel] [PATCH] xen/arm: add support for early printk for HiSilicon D01 platform

[Frediano Ziglio <freddy77@xxxxxxxxx>]

This platform use a standard 8250 device on port 0xe4007000.

Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>
---
 docs/misc/arm/early-printk.txt | 1 +
 xen/arch/arm/Rules.mk          | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/docs/misc/arm/early-printk.txt b/docs/misc/arm/early-printk.txt
index 1431751..92ab0df 100644
--- a/docs/misc/arm/early-printk.txt
+++ b/docs/misc/arm/early-printk.txt
@@ -16,6 +16,7 @@ where mach is the name of the machine:
   - omap5432: printk with UART3 on TI OMAP5432 processors
   - sun6i: printk with 8250 on Allwinner A31 processors
   - sun7i: printk with 8250 on Allwinner A20 processors
+  - hip04-d01: printk with 8250 on HiSilicon Hip-04 D01

 The base address and baud rate is hardcoded in xen/arch/arm/Rules.mk,
 see there when adding support for new machines.
diff --git a/xen/arch/arm/Rules.mk b/xen/arch/arm/Rules.mk
index 26fafa2..15f8b09 100644
--- a/xen/arch/arm/Rules.mk
+++ b/xen/arch/arm/Rules.mk
@@ -100,6 +100,12 @@ EARLY_PRINTK_INC := pl011
 EARLY_PRINTK_BAUD := 115200
 EARLY_UART_BASE_ADDRESS := 0x7ff80000
 endif
+ifeq ($(CONFIG_EARLY_PRINTK), hip04-d01)
+EARLY_PRINTK_INC := 8250
+EARLY_PRINTK_BAUD := 115200
+EARLY_UART_BASE_ADDRESS := 0xE4007000
+EARLY_UART_REG_SHIFT := 2
+endif

 ifneq ($(EARLY_PRINTK_INC),)
 EARLY_PRINTK := y
-- 
1.9.1

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