diff options
author | Tomasz Figa <t.figa@samsung.com> | 2014-03-17 18:28:09 -0400 |
---|---|---|
committer | Kukjin Kim <kgene.kim@samsung.com> | 2014-03-20 15:09:16 -0400 |
commit | 72551f6cf13e2f3a1d273b7007b5d7d7fd69c554 (patch) | |
tree | ebc79635f3b76e22d614297953608239b672fee4 /arch/arm/plat-samsung/pm.c | |
parent | d38688a69fd88269eae3c7c66ec34fb02fb04fd1 (diff) |
ARM: SAMSUNG: Move Samsung PM debug code into separate file
Not all Samsung SoC platforms are going to use the legacy Samsung PM
code enabled by CONFIG_SAMSUNG_PM_DEBUG. To allow using Samsung PM debug
helpers on such platforms, related code is moved to separate file and
a plat/pm-common.h header is added to separate legacy and generic code.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-samsung/pm.c')
-rw-r--r-- | arch/arm/plat-samsung/pm.c | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c index dd70337822da..3d523c90202a 100644 --- a/arch/arm/plat-samsung/pm.c +++ b/arch/arm/plat-samsung/pm.c | |||
@@ -17,16 +17,12 @@ | |||
17 | #include <linux/errno.h> | 17 | #include <linux/errno.h> |
18 | #include <linux/delay.h> | 18 | #include <linux/delay.h> |
19 | #include <linux/of.h> | 19 | #include <linux/of.h> |
20 | #include <linux/serial_core.h> | ||
21 | #include <linux/serial_s3c.h> | 20 | #include <linux/serial_s3c.h> |
22 | #include <linux/io.h> | 21 | #include <linux/io.h> |
23 | 22 | ||
24 | #include <asm/cacheflush.h> | 23 | #include <asm/cacheflush.h> |
25 | #include <asm/mach/map.h> | ||
26 | #include <asm/suspend.h> | 24 | #include <asm/suspend.h> |
27 | 25 | ||
28 | #include <plat/cpu.h> | ||
29 | |||
30 | #ifdef CONFIG_SAMSUNG_ATAGS | 26 | #ifdef CONFIG_SAMSUNG_ATAGS |
31 | #include <mach/hardware.h> | 27 | #include <mach/hardware.h> |
32 | #include <mach/map.h> | 28 | #include <mach/map.h> |
@@ -46,86 +42,6 @@ | |||
46 | 42 | ||
47 | unsigned long s3c_pm_flags; | 43 | unsigned long s3c_pm_flags; |
48 | 44 | ||
49 | /* Debug code: | ||
50 | * | ||
51 | * This code supports debug output to the low level UARTs for use on | ||
52 | * resume before the console layer is available. | ||
53 | */ | ||
54 | |||
55 | #ifdef CONFIG_SAMSUNG_PM_DEBUG | ||
56 | extern void printascii(const char *); | ||
57 | |||
58 | void s3c_pm_dbg(const char *fmt, ...) | ||
59 | { | ||
60 | va_list va; | ||
61 | char buff[256]; | ||
62 | |||
63 | va_start(va, fmt); | ||
64 | vsnprintf(buff, sizeof(buff), fmt, va); | ||
65 | va_end(va); | ||
66 | |||
67 | printascii(buff); | ||
68 | } | ||
69 | |||
70 | static inline void s3c_pm_debug_init(void) | ||
71 | { | ||
72 | /* restart uart clocks so we can use them to output */ | ||
73 | s3c_pm_debug_init_uart(); | ||
74 | } | ||
75 | |||
76 | static struct pm_uart_save uart_save; | ||
77 | |||
78 | static inline void __iomem *s3c_pm_uart_base(void) | ||
79 | { | ||
80 | unsigned long paddr; | ||
81 | unsigned long vaddr; | ||
82 | |||
83 | debug_ll_addr(&paddr, &vaddr); | ||
84 | |||
85 | return (void __iomem *)vaddr; | ||
86 | } | ||
87 | |||
88 | static void s3c_pm_save_uarts(void) | ||
89 | { | ||
90 | void __iomem *regs = s3c_pm_uart_base(); | ||
91 | struct pm_uart_save *save = &uart_save; | ||
92 | |||
93 | save->ulcon = __raw_readl(regs + S3C2410_ULCON); | ||
94 | save->ucon = __raw_readl(regs + S3C2410_UCON); | ||
95 | save->ufcon = __raw_readl(regs + S3C2410_UFCON); | ||
96 | save->umcon = __raw_readl(regs + S3C2410_UMCON); | ||
97 | save->ubrdiv = __raw_readl(regs + S3C2410_UBRDIV); | ||
98 | |||
99 | if (!soc_is_s3c2410()) | ||
100 | save->udivslot = __raw_readl(regs + S3C2443_DIVSLOT); | ||
101 | |||
102 | S3C_PMDBG("UART[%p]: ULCON=%04x, UCON=%04x, UFCON=%04x, UBRDIV=%04x\n", | ||
103 | regs, save->ulcon, save->ucon, save->ufcon, save->ubrdiv); | ||
104 | } | ||
105 | |||
106 | static void s3c_pm_restore_uarts(void) | ||
107 | { | ||
108 | void __iomem *regs = s3c_pm_uart_base(); | ||
109 | struct pm_uart_save *save = &uart_save; | ||
110 | |||
111 | s3c_pm_arch_update_uart(regs, save); | ||
112 | |||
113 | __raw_writel(save->ulcon, regs + S3C2410_ULCON); | ||
114 | __raw_writel(save->ucon, regs + S3C2410_UCON); | ||
115 | __raw_writel(save->ufcon, regs + S3C2410_UFCON); | ||
116 | __raw_writel(save->umcon, regs + S3C2410_UMCON); | ||
117 | __raw_writel(save->ubrdiv, regs + S3C2410_UBRDIV); | ||
118 | |||
119 | if (!soc_is_s3c2410()) | ||
120 | __raw_writel(save->udivslot, regs + S3C2443_DIVSLOT); | ||
121 | } | ||
122 | #else | ||
123 | #define s3c_pm_debug_init() do { } while (0) | ||
124 | |||
125 | static void s3c_pm_save_uarts(void) { } | ||
126 | static void s3c_pm_restore_uarts(void) { } | ||
127 | #endif | ||
128 | |||
129 | /* The IRQ ext-int code goes here, it is too small to currently bother | 45 | /* The IRQ ext-int code goes here, it is too small to currently bother |
130 | * with its own file. */ | 46 | * with its own file. */ |
131 | 47 | ||