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authorPawel Osciak <p.osciak@samsung.com>2009-11-17 02:41:19 -0500
committerBen Dooks <ben-linux@fluff.org>2009-11-30 20:33:16 -0500
commitedd6e3f89d7fe245149669400bd213140c16d6e4 (patch)
treefd738a20b916fbe90e341a260b791601278a4f57 /arch
parentd7ab33a0b3511e3d738a7b52f20ee83daede4465 (diff)
ARM: S5PC1xx: add platform helpers for s3c-fb device
Samsung S5PC100 has LCD-controller compatible with the one known from previous SoCs series. Add required platform setup and support code that it can be used with s3c-fb driver. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-s5pc100/include/mach/irqs.h5
-rw-r--r--arch/arm/mach-s5pc100/include/mach/regs-fb.h139
-rw-r--r--arch/arm/plat-s3c/include/plat/fb.h7
-rw-r--r--arch/arm/plat-s5pc1xx/Kconfig5
-rw-r--r--arch/arm/plat-s5pc1xx/Makefile1
-rw-r--r--arch/arm/plat-s5pc1xx/setup-fb-24bpp.c49
6 files changed, 206 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pc100/include/mach/irqs.h b/arch/arm/mach-s5pc100/include/mach/irqs.h
index 622720dba289..b53fa48a52c6 100644
--- a/arch/arm/mach-s5pc100/include/mach/irqs.h
+++ b/arch/arm/mach-s5pc100/include/mach/irqs.h
@@ -11,4 +11,9 @@
11 11
12#include <plat/irqs.h> 12#include <plat/irqs.h>
13 13
14/* LCD */
15#define IRQ_LCD_FIFO IRQ_LCD0
16#define IRQ_LCD_VSYNC IRQ_LCD1
17#define IRQ_LCD_SYSTEM IRQ_LCD2
18
14#endif /* __ASM_ARCH_IRQ_H */ 19#endif /* __ASM_ARCH_IRQ_H */
diff --git a/arch/arm/mach-s5pc100/include/mach/regs-fb.h b/arch/arm/mach-s5pc100/include/mach/regs-fb.h
new file mode 100644
index 000000000000..1732cd28c765
--- /dev/null
+++ b/arch/arm/mach-s5pc100/include/mach/regs-fb.h
@@ -0,0 +1,139 @@
1/* arch/arm/mach-s5pc100/include/mach/regs-fb.h
2 *
3 * Copyright 2009 Samsung Electronics Co.
4 * Pawel Osciak <p.osciak@samsung.com>
5 *
6 * Framebuffer register definitions for Samsung S5PC100.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_REGS_FB_H
14#define __ASM_ARCH_REGS_FB_H __FILE__
15
16#include <plat/regs-fb-v4.h>
17
18/* VP1 interface timing control */
19#define VP1CON0 (0x118)
20#define VP1_RATECON_EN (1 << 31)
21#define VP1_CLKRATE_MASK (0xff)
22
23#define VP1CON1 (0x11c)
24#define VP1_VTREGCON_EN (1 << 31)
25#define VP1_VBPD_MASK (0xfff)
26#define VP1_VBPD_SHIFT (16)
27
28
29#define WPALCON_H (0x19c)
30#define WPALCON_L (0x1a0)
31
32/* Pallete contro for WPAL0 and WPAL1 is the same as in S3C64xx, but
33 * different for WPAL2-4
34 */
35/* In WPALCON_L (aka WPALCON) */
36#define WPALCON_W1PAL_32BPP_A888 (0x7 << 3)
37#define WPALCON_W0PAL_32BPP_A888 (0x7 << 0)
38
39/* To set W2PAL-W4PAL consist of one bit from WPALCON_L and two from WPALCON_H,
40 * e.g. W2PAL[2..0] is made of (WPALCON_H[10..9], WPALCON_L[6]).
41 */
42#define WPALCON_L_WxPAL_L_MASK (0x1)
43#define WPALCON_L_W2PAL_L_SHIFT (6)
44#define WPALCON_L_W3PAL_L_SHIFT (7)
45#define WPALCON_L_W4PAL_L_SHIFT (8)
46
47#define WPALCON_L_WxPAL_H_MASK (0x3)
48#define WPALCON_H_W2PAL_H_SHIFT (9)
49#define WPALCON_H_W3PAL_H_SHIFT (13)
50#define WPALCON_H_W4PAL_H_SHIFT (17)
51
52/* Per-window alpha value registers */
53/* For window 0 8-bit alpha values are in VIDW0ALPHAx,
54 * for windows 1-4 alpha values consist of two parts, the 4 low bits are
55 * taken from VIDWxALPHAx and 4 high bits are from VIDOSDxC,
56 * e.g. WIN1_ALPHA0_B[7..0] = (VIDOSD1C[3..0], VIDW1ALPHA0[3..0])
57 */
58#define VIDWxALPHA0(_win) (0x200 + (_win * 8))
59#define VIDWxALPHA1(_win) (0x204 + (_win * 8))
60
61/* Only for window 0 in VIDW0ALPHAx. */
62#define VIDW0ALPHAx_R(_x) ((_x) << 16)
63#define VIDW0ALPHAx_R_MASK (0xff << 16)
64#define VIDW0ALPHAx_R_SHIFT (16)
65#define VIDW0ALPHAx_G(_x) ((_x) << 8)
66#define VIDW0ALPHAx_G_MASK (0xff << 8)
67#define VIDW0ALPHAx_G_SHIFT (8)
68#define VIDW0ALPHAx_B(_x) ((_x) << 0)
69#define VIDW0ALPHAx_B_MASK (0xff << 0)
70#define VIDW0ALPHAx_B_SHIFT (0)
71
72/* Low 4 bits of alpha0-1 for windows 1-4 */
73#define VIDW14ALPHAx_R_L(_x) ((_x) << 16)
74#define VIDW14ALPHAx_R_L_MASK (0xf << 16)
75#define VIDW14ALPHAx_R_L_SHIFT (16)
76#define VIDW14ALPHAx_G_L(_x) ((_x) << 8)
77#define VIDW14ALPHAx_G_L_MASK (0xf << 8)
78#define VIDW14ALPHAx_G_L_SHIFT (8)
79#define VIDW14ALPHAx_B_L(_x) ((_x) << 0)
80#define VIDW14ALPHAx_B_L_MASK (0xf << 0)
81#define VIDW14ALPHAx_B_L_SHIFT (0)
82
83
84/* Per-window blending equation control registers */
85#define BLENDEQx(_win) (0x244 + ((_win) * 4))
86#define BLENDEQ1 (0x244)
87#define BLENDEQ2 (0x248)
88#define BLENDEQ3 (0x24c)
89#define BLENDEQ4 (0x250)
90
91#define BLENDEQx_Q_FUNC(_x) ((_x) << 18)
92#define BLENDEQx_Q_FUNC_MASK (0xf << 18)
93#define BLENDEQx_P_FUNC(_x) ((_x) << 12)
94#define BLENDEQx_P_FUNC_MASK (0xf << 12)
95#define BLENDEQx_B_FUNC(_x) ((_x) << 6)
96#define BLENDEQx_B_FUNC_MASK (0xf << 6)
97#define BLENDEQx_A_FUNC(_x) ((_x) << 0)
98#define BLENDEQx_A_FUNC_MASK (0xf << 0)
99
100#define BLENDCON (0x260)
101#define BLENDCON_8BIT_ALPHA (1 << 0)
102
103/* Per-window palette base addresses (start of palette memory).
104 * Each window palette area consists of 256 32-bit entries.
105 * START is the first address (entry 0th), END is the address of 255th entry.
106 */
107#define WIN0_PAL_BASE (0x2400)
108#define WIN0_PAL_END (0x27fc)
109#define WIN1_PAL_BASE (0x2800)
110#define WIN1_PAL_END (0x2bfc)
111#define WIN2_PAL_BASE (0x2c00)
112#define WIN2_PAL_END (0x2ffc)
113#define WIN3_PAL_BASE (0x3000)
114#define WIN3_PAL_END (0x33fc)
115#define WIN4_PAL_BASE (0x3400)
116#define WIN4_PAL_END (0x37fc)
117
118#define WIN0_PAL(_entry) (WIN0_PAL_BASE + ((_entry) * 4))
119#define WIN1_PAL(_entry) (WIN1_PAL_BASE + ((_entry) * 4))
120#define WIN2_PAL(_entry) (WIN2_PAL_BASE + ((_entry) * 4))
121#define WIN3_PAL(_entry) (WIN3_PAL_BASE + ((_entry) * 4))
122#define WIN4_PAL(_entry) (WIN4_PAL_BASE + ((_entry) * 4))
123
124static inline unsigned int s3c_fb_pal_reg(unsigned int window, int reg)
125{
126 switch (window) {
127 case 0: return WIN0_PAL(reg);
128 case 1: return WIN1_PAL(reg);
129 case 2: return WIN2_PAL(reg);
130 case 3: return WIN3_PAL(reg);
131 case 4: return WIN4_PAL(reg);
132 }
133
134 BUG();
135}
136
137
138#endif /* __ASM_ARCH_REGS_FB_H */
139
diff --git a/arch/arm/plat-s3c/include/plat/fb.h b/arch/arm/plat-s3c/include/plat/fb.h
index 214ff561b0dd..f8db87930f8b 100644
--- a/arch/arm/plat-s3c/include/plat/fb.h
+++ b/arch/arm/plat-s3c/include/plat/fb.h
@@ -70,4 +70,11 @@ extern void s3c_fb_set_platdata(struct s3c_fb_platdata *pd);
70 */ 70 */
71extern void s3c64xx_fb_gpio_setup_24bpp(void); 71extern void s3c64xx_fb_gpio_setup_24bpp(void);
72 72
73/**
74 * s5pc100_fb_gpio_setup_24bpp() - S5PC100 setup function for 24bpp LCD
75 *
76 * Initialise the GPIO for an 24bpp LCD display on the RGB interface.
77 */
78extern void s5pc100_fb_gpio_setup_24bpp(void);
79
73#endif /* __PLAT_S3C_FB_H */ 80#endif /* __PLAT_S3C_FB_H */
diff --git a/arch/arm/plat-s5pc1xx/Kconfig b/arch/arm/plat-s5pc1xx/Kconfig
index 86edd27c7f24..6ac48a6fba78 100644
--- a/arch/arm/plat-s5pc1xx/Kconfig
+++ b/arch/arm/plat-s5pc1xx/Kconfig
@@ -37,6 +37,11 @@ config CPU_S5PC100_CLOCK
37 37
38# platform specific device setup 38# platform specific device setup
39 39
40config S5PC1XX_SETUP_FB_24BPP
41 bool
42 help
43 Common setup code for S5PC1XX with an 24bpp RGB display helper.
44
40config S5PC100_SETUP_I2C0 45config S5PC100_SETUP_I2C0
41 bool 46 bool
42 default y 47 default y
diff --git a/arch/arm/plat-s5pc1xx/Makefile b/arch/arm/plat-s5pc1xx/Makefile
index e860813cb8de..3d2ac7150b15 100644
--- a/arch/arm/plat-s5pc1xx/Makefile
+++ b/arch/arm/plat-s5pc1xx/Makefile
@@ -25,5 +25,6 @@ obj-$(CONFIG_CPU_S5PC100_CLOCK) += s5pc100-clock.o
25# Device setup 25# Device setup
26 26
27obj-$(CONFIG_S5P_GPIO_CFG_S5PC1XX) += gpio-config.o 27obj-$(CONFIG_S5P_GPIO_CFG_S5PC1XX) += gpio-config.o
28obj-$(CONFIG_S5PC1XX_SETUP_FB_24BPP) += setup-fb-24bpp.o
28obj-$(CONFIG_S5PC100_SETUP_I2C0) += setup-i2c0.o 29obj-$(CONFIG_S5PC100_SETUP_I2C0) += setup-i2c0.o
29obj-$(CONFIG_S5PC100_SETUP_I2C1) += setup-i2c1.o 30obj-$(CONFIG_S5PC100_SETUP_I2C1) += setup-i2c1.o
diff --git a/arch/arm/plat-s5pc1xx/setup-fb-24bpp.c b/arch/arm/plat-s5pc1xx/setup-fb-24bpp.c
new file mode 100644
index 000000000000..1a63768a9a2e
--- /dev/null
+++ b/arch/arm/plat-s5pc1xx/setup-fb-24bpp.c
@@ -0,0 +1,49 @@
1/*
2 * linux/arch/arm/plat-s5pc100/setup-fb-24bpp.c
3 *
4 * Copyright 2009 Samsung Electronics
5 *
6 * Base S5PC1XX setup information for 24bpp LCD framebuffer
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/kernel.h>
14#include <linux/types.h>
15#include <linux/fb.h>
16#include <linux/gpio.h>
17
18#include <mach/regs-fb.h>
19#include <mach/map.h>
20#include <plat/fb.h>
21#include <plat/gpio-cfg.h>
22#include <plat/gpio-cfg-s5pc1xx.h>
23
24#define DISR_OFFSET 0x7008
25
26void s5pc100_fb_gpio_setup_24bpp(void)
27{
28 unsigned int gpio = 0;
29
30 for (gpio = S5PC100_GPF0(0); gpio <= S5PC100_GPF0(7); gpio++) {
31 s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
32 s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
33 }
34
35 for (gpio = S5PC100_GPF1(0); gpio <= S5PC100_GPF1(7); gpio++) {
36 s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
37 s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
38 }
39
40 for (gpio = S5PC100_GPF2(0); gpio <= S5PC100_GPF2(7); gpio++) {
41 s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
42 s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
43 }
44
45 for (gpio = S5PC100_GPF3(0); gpio <= S5PC100_GPF3(3); gpio++) {
46 s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
47 s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
48 }
49}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-29 07:15:46 -0500