ARM: sirf: add two debug ports for CSRatlas7 SoC

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 and uses CONFIG_DEBUG_UART_PHYS/DEBUG_UART_VIRT
to define different base addresses for multiple ports.

Signed-off-by: Guo Zeng <Guo.Zeng@csr.com>
Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index e0a3cc9cb1a7bb4695a50e3dd911932068a9bc94..0c2e6cd399b69d3ee3a0834da9f294d087f216ba 100644 (file)
--- 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
@@ -1244,6 +1267,8 @@ config DEBUG_UART_PHYS
        default 0x11009000 if DEBUG_MT8135_UART3
        default 0x16000000 if ARCH_INTEGRATOR
        default 0x18000300 if DEBUG_BCM_5301X
+       default 0x18010000 if DEBUG_SIRFATLAS7_UART0
+       default 0x18020000 if DEBUG_SIRFATLAS7_UART1
        default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
        default 0x20060000 if DEBUG_RK29_UART0
        default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
@@ -1270,6 +1295,7 @@ config DEBUG_UART_PHYS
        default 0x808c0000 if ARCH_EP93XX
        default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
        default 0xa9a00000 if DEBUG_MSM_UART
+       default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
        default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
        default 0xc0013000 if DEBUG_U300_UART
        default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
@@ -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"
@@ -1370,8 +1397,11 @@ config DEBUG_UART_VIRT
        default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
        default 0xfeb31000 if DEBUG_KEYSTONE_UART1
        default 0xfec02000 if DEBUG_SOCFPGA_UART
+       default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
        default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
        default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
+       default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
+       default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
        default 0xfec90000 if DEBUG_RK32_UART2
        default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
        default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
@@ -1391,7 +1421,7 @@ config DEBUG_UART_VIRT
        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 006ec9fb20c616c26ede09a82189c391a1af1824..630f231f2f375dc561754546015dc14adc641b89 100644 (file)
--- 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