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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-26 12:22:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-26 12:22:27 -0700
commitce53044c68cf4fb6c50a2a0d88786be65fae7235 (patch)
tree19c21da7d261412192e189ef3fd1a9ff4e7ba5c2 /arch/arm/mach-davinci/include
parent0877aa3908aaeeae8fc2850691668c4315d3db56 (diff)
parent046fae440d32cc6dec8148c7e06a8b4b987f8a2f (diff)
Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc driver specific updates from Olof Johansson: "These changes are specific to some driver that may be used by multiple boards or socs. The most significant change in here is the move of the samsung iommu code from a platform specific in-kernel interface to the generic iommu subsystem." Fix up trivial conflicts in arch/arm/mach-exynos/Kconfig * tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits) mmc: dt: Consolidate DT bindings iommu/exynos: Add iommu driver for EXYNOS Platforms ARM: davinci: optimize the DMA ISR ARM: davinci: implement DEBUG_LL port choice ARM: tegra: Add SMMU enabler in AHB ARM: tegra: Add Tegra AHB driver Input: pxa27x_keypad add choice to set direct_key_mask Input: pxa27x_keypad direct key may be low active Input: pxa27x_keypad bug fix for direct_key_mask Input: pxa27x_keypad keep clock on as wakeup source ARM: dt: tegra: pinmux changes for USB ULPI ARM: tegra: add USB ULPI PHY reset GPIO to device tree ARM: tegra: don't hard-code USB ULPI PHY reset_gpio ARM: tegra: change pll_p_out4's rate to 24MHz ARM: tegra: fix pclk rate ARM: tegra: reparent sclk to pll_c_out1 ARM: tegra: Add pllc clock init table ARM: dt: tegra cardhu: basic audio support ARM: dt: tegra30.dtsi: Add audio-related nodes ARM: tegra: add AUXDATA required for audio ...
Diffstat (limited to 'arch/arm/mach-davinci/include')
-rw-r--r--arch/arm/mach-davinci/include/mach/debug-macro.S58
-rw-r--r--arch/arm/mach-davinci/include/mach/hardware.h2
-rw-r--r--arch/arm/mach-davinci/include/mach/serial.h10
-rw-r--r--arch/arm/mach-davinci/include/mach/uncompress.h30
4 files changed, 31 insertions, 69 deletions
diff --git a/arch/arm/mach-davinci/include/mach/debug-macro.S b/arch/arm/mach-davinci/include/mach/debug-macro.S
index cf94552d527..34290d14754 100644
--- a/arch/arm/mach-davinci/include/mach/debug-macro.S
+++ b/arch/arm/mach-davinci/include/mach/debug-macro.S
@@ -22,46 +22,28 @@
#define UART_SHIFT 2
- .pushsection .data
-davinci_uart_phys: .word 0
-davinci_uart_virt: .word 0
- .popsection
-
- .macro addruart, rp, rv, tmp
-
- /* Use davinci_uart_phys/virt if already configured */
-10: adr \rp, 99f @ get effective addr of 99f
- ldr \rv, [\rp] @ get absolute addr of 99f
- sub \rv, \rv, \rp @ offset between the two
- ldr \rp, [\rp, #4] @ abs addr of omap_uart_phys
- sub \tmp, \rp, \rv @ make it effective
- ldr \rp, [\tmp, #0] @ davinci_uart_phys
- ldr \rv, [\tmp, #4] @ davinci_uart_virt
- cmp \rp, #0 @ is port configured?
- cmpne \rv, #0
- bne 100f @ already configured
-
- /* Check the debug UART address set in uncompress.h */
- and \rp, pc, #0xff000000
- ldr \rv, =DAVINCI_UART_INFO_OFS
- add \rp, \rp, \rv
-
- /* Copy uart phys address from decompressor uart info */
- ldr \rv, [\rp, #0]
- str \rv, [\tmp, #0]
-
- /* Copy uart virt address from decompressor uart info */
- ldr \rv, [\rp, #4]
- str \rv, [\tmp, #4]
-
- b 10b
+#if defined(CONFIG_DEBUG_DAVINCI_DMx_UART0)
+#define UART_BASE DAVINCI_UART0_BASE
+#elif defined(CONFIG_DEBUG_DAVINCI_DA8XX_UART0)
+#define UART_BASE DA8XX_UART0_BASE
+#elif defined(CONFIG_DEBUG_DAVINCI_DA8XX_UART1)
+#define UART_BASE DA8XX_UART1_BASE
+#elif defined(CONFIG_DEBUG_DAVINCI_DA8XX_UART2)
+#define UART_BASE DA8XX_UART2_BASE
+#elif defined(CONFIG_DEBUG_DAVINCI_TNETV107X_UART1)
+#define UART_BASE TNETV107X_UART2_BASE
+#define UART_VIRTBASE TNETV107X_UART2_VIRT
+#else
+#error "Select a specifc port for DEBUG_LL"
+#endif
- .align
-99: .word .
- .word davinci_uart_phys
- .ltorg
+#ifndef UART_VIRTBASE
+#define UART_VIRTBASE IO_ADDRESS(UART_BASE)
+#endif
-100:
+ .macro addruart, rp, rv, tmp
+ ldr \rp, =UART_BASE
+ ldr \rv, =UART_VIRTBASE
.endm
.macro senduart,rd,rx
diff --git a/arch/arm/mach-davinci/include/mach/hardware.h b/arch/arm/mach-davinci/include/mach/hardware.h
index 2184691ebc2..16bb42291d3 100644
--- a/arch/arm/mach-davinci/include/mach/hardware.h
+++ b/arch/arm/mach-davinci/include/mach/hardware.h
@@ -22,7 +22,7 @@
/*
* I/O mapping
*/
-#define IO_PHYS 0x01c00000UL
+#define IO_PHYS UL(0x01c00000)
#define IO_OFFSET 0xfd000000 /* Virtual IO = 0xfec00000 */
#define IO_SIZE 0x00400000
#define IO_VIRT (IO_PHYS + IO_OFFSET)
diff --git a/arch/arm/mach-davinci/include/mach/serial.h b/arch/arm/mach-davinci/include/mach/serial.h
index e347d88fef9..46b3cd11c3c 100644
--- a/arch/arm/mach-davinci/include/mach/serial.h
+++ b/arch/arm/mach-davinci/include/mach/serial.h
@@ -15,16 +15,6 @@
#include <mach/hardware.h>
-/*
- * Stolen area that contains debug uart physical and virtual addresses. These
- * addresses are filled in by the uncompress.h code, and are used by the debug
- * macros in debug-macro.S.
- *
- * This area sits just below the page tables (see arch/arm/kernel/head.S).
- * We define it as a relative offset from start of usable RAM.
- */
-#define DAVINCI_UART_INFO_OFS 0x3ff8
-
#define DAVINCI_UART0_BASE (IO_PHYS + 0x20000)
#define DAVINCI_UART1_BASE (IO_PHYS + 0x20400)
#define DAVINCI_UART2_BASE (IO_PHYS + 0x20800)
diff --git a/arch/arm/mach-davinci/include/mach/uncompress.h b/arch/arm/mach-davinci/include/mach/uncompress.h
index da2fb2c2155..18cfd497715 100644
--- a/arch/arm/mach-davinci/include/mach/uncompress.h
+++ b/arch/arm/mach-davinci/include/mach/uncompress.h
@@ -43,37 +43,27 @@ static inline void flush(void)
barrier();
}
-static inline void set_uart_info(u32 phys, void * __iomem virt)
+static inline void set_uart_info(u32 phys)
{
- /*
- * Get address of some.bss variable and round it down
- * a la CONFIG_AUTO_ZRELADDR.
- */
- u32 ram_start = (u32)&uart & 0xf8000000;
- u32 *uart_info = (u32 *)(ram_start + DAVINCI_UART_INFO_OFS);
-
uart = (u32 *)phys;
- uart_info[0] = phys;
- uart_info[1] = (u32)virt;
}
-#define _DEBUG_LL_ENTRY(machine, phys, virt) \
- if (machine_is_##machine()) { \
- set_uart_info(phys, virt); \
- break; \
+#define _DEBUG_LL_ENTRY(machine, phys) \
+ { \
+ if (machine_is_##machine()) { \
+ set_uart_info(phys); \
+ break; \
+ } \
}
#define DEBUG_LL_DAVINCI(machine, port) \
- _DEBUG_LL_ENTRY(machine, DAVINCI_UART##port##_BASE, \
- IO_ADDRESS(DAVINCI_UART##port##_BASE))
+ _DEBUG_LL_ENTRY(machine, DAVINCI_UART##port##_BASE)
#define DEBUG_LL_DA8XX(machine, port) \
- _DEBUG_LL_ENTRY(machine, DA8XX_UART##port##_BASE, \
- IO_ADDRESS(DA8XX_UART##port##_BASE))
+ _DEBUG_LL_ENTRY(machine, DA8XX_UART##port##_BASE)
#define DEBUG_LL_TNETV107X(machine, port) \
- _DEBUG_LL_ENTRY(machine, TNETV107X_UART##port##_BASE, \
- TNETV107X_UART##port##_VIRT)
+ _DEBUG_LL_ENTRY(machine, TNETV107X_UART##port##_BASE)
static inline void __arch_decomp_setup(unsigned long arch_id)
{