[PATCH V2 6/9] ARM: sirf: add two debug ports for CSRatlas7 SoC
Barry Song
21cnbao at gmail.com
Fri Jan 2 17:36:44 PST 2015
From: Guo Zeng <Guo.Zeng at csr.com>
this patch adds UART0 and UART1 as LLUART port, as the new atlas7
registers layout are different, it also refines some names of old
hard-coded MARCOs.
this patch also moves to CONFIG_DEBUG_UART_PHYS/DEBUG_UART_VIRT
and debug_ll_io_init().
Signed-off-by: Guo Zeng <Guo.Zeng at csr.com>
Signed-off-by: Zhiwu Song <Zhiwu.Song at csr.com>
Signed-off-by: Barry Song <Baohua.Song at csr.com>
---
arch/arm/Kconfig.debug | 36 +++++++++++++++++++++++++++++++++---
arch/arm/include/debug/sirf.S | 28 +++++++++++++---------------
arch/arm/mach-prima2/common.c | 7 -------
arch/arm/mach-prima2/lluart.c | 33 ---------------------------------
4 files changed, 46 insertions(+), 58 deletions(-)
delete mode 100644 arch/arm/mach-prima2/lluart.c
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index e0a3cc9..1edfb86 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -916,10 +916,29 @@ choice
config DEBUG_SIRFPRIMA2_UART1
bool "Kernel low-level debugging messages via SiRFprimaII UART1"
depends on ARCH_PRIMA2
+ select DEBUG_SIRFSOC_UART
help
Say Y here if you want the debug print routines to direct
their output to the uart1 port on SiRFprimaII devices.
+ config DEBUG_SIRFATLAS7_UART0
+ bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
+ depends on ARCH_ATLAS7
+ select DEBUG_SIRFSOC_UART
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the uart0 port on SiRFATLAS7 devices.The uart0
+ is used on SiRFATLAS7 as a extra debug port.sometimes an extra
+ debug port can be very useful.
+
+ config DEBUG_SIRFATLAS7_UART1
+ bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
+ depends on ARCH_ATLAS7
+ select DEBUG_SIRFSOC_UART
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the uart1 port on SiRFATLAS7 devices.
+
config STIH41X_DEBUG_ASC2
bool "Use StiH415/416 ASC2 UART for low-level debug"
depends on ARCH_STI
@@ -1154,6 +1173,10 @@ config DEBUG_STI_UART
bool
depends on ARCH_STI
+config DEBUG_SIRFSOC_UART
+ bool
+ depends on ARCH_SIRF
+
config DEBUG_LL_INCLUDE
string
default "debug/sa1100.S" if DEBUG_SA1100
@@ -1188,7 +1211,7 @@ config DEBUG_LL_INCLUDE
default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
default "debug/s5pv210.S" if DEBUG_S5PV210_UART
- default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1
+ default "debug/sirf.S" if DEBUG_SIRFSOC_UART
default "debug/sti.S" if DEBUG_STI_UART
default "debug/tegra.S" if DEBUG_TEGRA_UART
default "debug/ux500.S" if DEBUG_UX500_UART
@@ -1305,6 +1328,9 @@ config DEBUG_UART_PHYS
default 0xfff36000 if DEBUG_HIGHBANK_UART
default 0xfffe8600 if DEBUG_UART_BCM63XX
default 0xfffff700 if ARCH_IOP33X
+ default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
+ default 0x18010000 if DEBUG_SIRFATLAS7_UART0
+ default 0x18020000 if DEBUG_SIRFATLAS7_UART1
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
DEBUG_LL_UART_EFM32 || \
DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
@@ -1313,7 +1339,8 @@ config DEBUG_UART_PHYS
DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
- DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
+ DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
+ DEBUG_SIRFSOC_UART
config DEBUG_UART_VIRT
hex "Virtual base address of debug UART"
@@ -1387,11 +1414,14 @@ config DEBUG_UART_VIRT
default 0xfef36000 if DEBUG_HIGHBANK_UART
default 0xfefff700 if ARCH_IOP33X
default 0xff003000 if DEBUG_U300_UART
+ default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
+ default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
+ default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
default DEBUG_UART_PHYS if !MMU
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
- DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
+ DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || DEBUG_SIRFSOC_UART
config DEBUG_UART_8250_SHIFT
int "Register offset shift for the 8250 debug UART"
diff --git a/arch/arm/include/debug/sirf.S b/arch/arm/include/debug/sirf.S
index 006ec9f..630f231 100644
--- a/arch/arm/include/debug/sirf.S
+++ b/arch/arm/include/debug/sirf.S
@@ -6,35 +6,33 @@
* Licensed under GPLv2 or later.
*/
-#if defined(CONFIG_DEBUG_SIRFPRIMA2_UART1)
-#define SIRFSOC_UART1_PA_BASE 0xb0060000
-#else
-#define SIRFSOC_UART1_PA_BASE 0
-#endif
+#define SIRF_LLUART_TXFIFO_STATUS 0x0114
+#define SIRF_LLUART_TXFIFO_DATA 0x0118
-#define SIRFSOC_UART1_VA_BASE 0xFEC60000
+#define SIRF_LLUART_TXFIFO_FULL (1 << 5)
-#define SIRFSOC_UART_TXFIFO_STATUS 0x0114
-#define SIRFSOC_UART_TXFIFO_DATA 0x0118
+#ifdef CONFIG_DEBUG_SIRFATLAS7_UART0
+#define SIRF_LLUART_TXFIFO_EMPTY (1 << 8)
+#else
+#define SIRF_LLUART_TXFIFO_EMPTY (1 << 6)
+#endif
-#define SIRFSOC_UART1_TXFIFO_FULL (1 << 5)
-#define SIRFSOC_UART1_TXFIFO_EMPTY (1 << 6)
.macro addruart, rp, rv, tmp
- ldr \rp, =SIRFSOC_UART1_PA_BASE @ physical
- ldr \rv, =SIRFSOC_UART1_VA_BASE @ virtual
+ ldr \rp, =CONFIG_DEBUG_UART_PHYS @ physical
+ ldr \rv, =CONFIG_DEBUG_UART_VIRT @ virtual
.endm
.macro senduart,rd,rx
- str \rd, [\rx, #SIRFSOC_UART_TXFIFO_DATA]
+ str \rd, [\rx, #SIRF_LLUART_TXFIFO_DATA]
.endm
.macro busyuart,rd,rx
.endm
.macro waituart,rd,rx
-1001: ldr \rd, [\rx, #SIRFSOC_UART_TXFIFO_STATUS]
- tst \rd, #SIRFSOC_UART1_TXFIFO_EMPTY
+1001: ldr \rd, [\rx, #SIRF_LLUART_TXFIFO_STATUS]
+ tst \rd, #SIRF_LLUART_TXFIFO_EMPTY
beq 1001b
.endm
diff --git a/arch/arm/mach-prima2/common.c b/arch/arm/mach-prima2/common.c
index a20b8d4..c62ff68 100644
--- a/arch/arm/mach-prima2/common.c
+++ b/arch/arm/mach-prima2/common.c
@@ -20,11 +20,6 @@ static void __init sirfsoc_init_late(void)
sirfsoc_pm_init();
}
-static __init void sirfsoc_map_io(void)
-{
- sirfsoc_map_lluart();
-}
-
#ifdef CONFIG_ARCH_ATLAS6
static const char *atlas6_dt_match[] __initconst = {
"sirf,atlas6",
@@ -35,7 +30,6 @@ DT_MACHINE_START(ATLAS6_DT, "Generic ATLAS6 (Flattened Device Tree)")
/* Maintainer: Barry Song <baohua.song at csr.com> */
.l2c_aux_val = 0,
.l2c_aux_mask = ~0,
- .map_io = sirfsoc_map_io,
.init_late = sirfsoc_init_late,
.dt_compat = atlas6_dt_match,
MACHINE_END
@@ -51,7 +45,6 @@ DT_MACHINE_START(PRIMA2_DT, "Generic PRIMA2 (Flattened Device Tree)")
/* Maintainer: Barry Song <baohua.song at csr.com> */
.l2c_aux_val = 0,
.l2c_aux_mask = ~0,
- .map_io = sirfsoc_map_io,
.dma_zone_size = SZ_256M,
.init_late = sirfsoc_init_late,
.dt_compat = prima2_dt_match,
diff --git a/arch/arm/mach-prima2/lluart.c b/arch/arm/mach-prima2/lluart.c
deleted file mode 100644
index 20453c1..0000000
--- a/arch/arm/mach-prima2/lluart.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Static memory mapping for DEBUG_LL
- *
- * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
- *
- * Licensed under GPLv2 or later.
- */
-
-#include <linux/kernel.h>
-#include <asm/page.h>
-#include <asm/mach/map.h>
-#include "common.h"
-
-#if defined(CONFIG_DEBUG_SIRFPRIMA2_UART1)
-#define SIRFSOC_UART1_PA_BASE 0xb0060000
-#else
-#define SIRFSOC_UART1_PA_BASE 0
-#endif
-
-#define SIRFSOC_UART1_VA_BASE SIRFSOC_VA(0x060000)
-#define SIRFSOC_UART1_SIZE SZ_4K
-
-void __init sirfsoc_map_lluart(void)
-{
- struct map_desc sirfsoc_lluart_map = {
- .virtual = SIRFSOC_UART1_VA_BASE,
- .pfn = __phys_to_pfn(SIRFSOC_UART1_PA_BASE),
- .length = SIRFSOC_UART1_SIZE,
- .type = MT_DEVICE,
- };
-
- iotable_init(&sirfsoc_lluart_map, 1);
-}
--
2.2.1
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