[PATCH 10/74] ST SPEAr: Adding support for CLCD on SPEAr3xx/6xx
Viresh KUMAR
viresh.kumar at st.com
Mon Aug 30 06:38:41 EDT 2010
From: Vipul-kumar Samar <vipulkumar.samar at st.com>
Signed-off-by: vipul kumar samar <vipulkumar.samar at st.com>
Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar at st.com>
Signed-off-by: Viresh Kumar <viresh.kumar at st.com>
---
arch/arm/mach-spear3xx/include/mach/generic.h | 6 +
arch/arm/mach-spear3xx/spear300.c | 17 ++++
arch/arm/mach-spear3xx/spear300_evb.c | 1 +
arch/arm/mach-spear3xx/spear320.c | 16 +++
arch/arm/mach-spear3xx/spear320_evb.c | 1 +
arch/arm/mach-spear6xx/include/mach/generic.h | 4 +
arch/arm/mach-spear6xx/spear600_evb.c | 1 +
arch/arm/mach-spear6xx/spear6xx.c | 17 ++++
arch/arm/plat-spear/Makefile | 2 +-
arch/arm/plat-spear/clcd.c | 126 +++++++++++++++++++++++++
drivers/video/Kconfig | 14 +++-
11 files changed, 203 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/plat-spear/clcd.c
diff --git a/arch/arm/mach-spear3xx/include/mach/generic.h b/arch/arm/mach-spear3xx/include/mach/generic.h
index e7d2de8..1c8f9f1 100644
--- a/arch/arm/mach-spear3xx/include/mach/generic.h
+++ b/arch/arm/mach-spear3xx/include/mach/generic.h
@@ -100,6 +100,7 @@ extern struct pmx_driver pmx_driver;
/* spear300 declarations */
#ifdef CONFIG_MACH_SPEAR300
/* Add spear300 machine device structure declarations here */
+extern struct amba_device clcd_device;
extern struct amba_device gpio1_device;
/* pad mux modes */
@@ -136,6 +137,8 @@ extern struct pmx_dev pmx_gpio1;
/* Add spear300 machine function declarations here */
void __init spear300_init(void);
+/* Add misc structure declarations here */
+extern struct clcd_board clcd_plat_data;
#endif /* CONFIG_MACH_SPEAR300 */
/* spear310 declarations */
@@ -160,6 +163,7 @@ void __init spear310_init(void);
/* spear320 declarations */
#ifdef CONFIG_MACH_SPEAR320
/* Add spear320 machine device structure declarations here */
+extern struct amba_device clcd_device;
/* pad mux modes */
extern struct pmx_mode auto_net_smii_mode;
@@ -194,6 +198,8 @@ extern struct pmx_dev pmx_i2c1;
/* Add spear320 machine function declarations here */
void __init spear320_init(void);
+/* Add misc structure declarations here */
+extern struct clcd_board clcd_plat_data;
#endif /* CONFIG_MACH_SPEAR320 */
#endif /* __MACH_GENERIC_H */
diff --git a/arch/arm/mach-spear3xx/spear300.c b/arch/arm/mach-spear3xx/spear300.c
index 7e0ca5d..5d8df00 100644
--- a/arch/arm/mach-spear3xx/spear300.c
+++ b/arch/arm/mach-spear3xx/spear300.c
@@ -371,6 +371,23 @@ struct pmx_driver pmx_driver = {
};
/* Add spear300 specific devices here */
+
+/* CLCD device registration */
+struct amba_device clcd_device = {
+ .dev = {
+ .init_name = "clcd",
+ .coherent_dma_mask = ~0,
+ .platform_data = &clcd_plat_data,
+ },
+ .res = {
+ .start = SPEAR300_CLCD_BASE,
+ .end = SPEAR300_CLCD_BASE + SPEAR300_CLCD_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ .dma_mask = ~0,
+ .irq = {IRQ_CLCD, NO_IRQ},
+};
+
/* arm gpio1 device registeration */
static struct pl061_platform_data gpio1_plat_data = {
.gpio_base = 8,
diff --git a/arch/arm/mach-spear3xx/spear300_evb.c b/arch/arm/mach-spear3xx/spear300_evb.c
index cd23c98..3bb7fbc 100644
--- a/arch/arm/mach-spear3xx/spear300_evb.c
+++ b/arch/arm/mach-spear3xx/spear300_evb.c
@@ -38,6 +38,7 @@ static struct amba_device *amba_devs[] __initdata = {
&uart_device,
/* spear300 specific devices */
+ &clcd_device,
&gpio1_device,
};
diff --git a/arch/arm/mach-spear3xx/spear320.c b/arch/arm/mach-spear3xx/spear320.c
index 2886bb2..e5baa00 100644
--- a/arch/arm/mach-spear3xx/spear320.c
+++ b/arch/arm/mach-spear3xx/spear320.c
@@ -386,6 +386,22 @@ struct pmx_driver pmx_driver = {
/* Add spear320 specific devices here */
+/* CLCD device registration */
+struct amba_device clcd_device = {
+ .dev = {
+ .init_name = "clcd",
+ .coherent_dma_mask = ~0,
+ .platform_data = &clcd_plat_data,
+ },
+ .res = {
+ .start = SPEAR320_CLCD_BASE,
+ .end = SPEAR320_CLCD_BASE + SPEAR320_CLCD_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ .dma_mask = ~0,
+ .irq = {VIRQ_CLCD, NO_IRQ},
+};
+
/* spear3xx shared irq */
struct shirq_dev_config shirq_ras1_config[] = {
{
diff --git a/arch/arm/mach-spear3xx/spear320_evb.c b/arch/arm/mach-spear3xx/spear320_evb.c
index 4a7ce35..821e806 100644
--- a/arch/arm/mach-spear3xx/spear320_evb.c
+++ b/arch/arm/mach-spear3xx/spear320_evb.c
@@ -43,6 +43,7 @@ static struct amba_device *amba_devs[] __initdata = {
&uart_device,
/* spear320 specific devices */
+ &clcd_device,
};
static struct platform_device *plat_devs[] __initdata = {
diff --git a/arch/arm/mach-spear6xx/include/mach/generic.h b/arch/arm/mach-spear6xx/include/mach/generic.h
index e5967ed..d6a04f2 100644
--- a/arch/arm/mach-spear6xx/include/mach/generic.h
+++ b/arch/arm/mach-spear6xx/include/mach/generic.h
@@ -29,6 +29,7 @@
#define SPEAR_GPT0_CHAN1_IRQ IRQ_CPU_GPT1_2
/* Add spear6xx family device structure declarations here */
+extern struct amba_device clcd_device;
extern struct amba_device gpio_device[];
extern struct amba_device uart_device[];
extern struct sys_timer spear6xx_timer;
@@ -43,4 +44,7 @@ void __init clk_init(void);
/* Add spear600 machine device structure declarations here */
+/* Add misc structure declarations here */
+extern struct clcd_board clcd_plat_data;
+
#endif /* __MACH_GENERIC_H */
diff --git a/arch/arm/mach-spear6xx/spear600_evb.c b/arch/arm/mach-spear6xx/spear600_evb.c
index bdd5b76..88e69f4 100644
--- a/arch/arm/mach-spear6xx/spear600_evb.c
+++ b/arch/arm/mach-spear6xx/spear600_evb.c
@@ -17,6 +17,7 @@
#include <mach/spear.h>
static struct amba_device *amba_devs[] __initdata = {
+ &clcd_device,
&gpio_device[0],
&gpio_device[1],
&gpio_device[2],
diff --git a/arch/arm/mach-spear6xx/spear6xx.c b/arch/arm/mach-spear6xx/spear6xx.c
index 88a82ca..d0f6b9d 100644
--- a/arch/arm/mach-spear6xx/spear6xx.c
+++ b/arch/arm/mach-spear6xx/spear6xx.c
@@ -23,6 +23,23 @@
#include <mach/spear.h>
/* Add spear6xx machines common devices here */
+
+/* CLCD device registration */
+struct amba_device clcd_device = {
+ .dev = {
+ .init_name = "clcd",
+ .coherent_dma_mask = ~0,
+ .platform_data = &clcd_plat_data,
+ },
+ .res = {
+ .start = SPEAR6XX_ICM3_CLCD_BASE,
+ .end = SPEAR6XX_ICM3_CLCD_BASE + SPEAR6XX_ICM3_CLCD_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ .dma_mask = ~0,
+ .irq = {IRQ_BASIC_CLCD, NO_IRQ},
+};
+
/* uart device registeration */
struct amba_device uart_device[] = {
{
diff --git a/arch/arm/plat-spear/Makefile b/arch/arm/plat-spear/Makefile
index b4f340b..01a4a91 100644
--- a/arch/arm/plat-spear/Makefile
+++ b/arch/arm/plat-spear/Makefile
@@ -3,6 +3,6 @@
#
# Common support
-obj-y := clock.o time.o
+obj-y := clcd.o clock.o time.o
obj-$(CONFIG_ARCH_SPEAR3XX) += shirq.o padmux.o
diff --git a/arch/arm/plat-spear/clcd.c b/arch/arm/plat-spear/clcd.c
new file mode 100644
index 0000000..0ad4d0b
--- /dev/null
+++ b/arch/arm/plat-spear/clcd.c
@@ -0,0 +1,126 @@
+/*
+* arch/arm/plat-spear/clcd.c
+*
+* Copyright (C) 2009 ST Microelectronics
+* Shiraz Hashim<shiraz.hashim at st.com>
+* Ashish Priyadarshi<ashish.priyadarshi at st.com>
+*
+* This file is licensed under the terms of the GNU General Public
+* License version 2. This program is licensed "as is" without any
+* warranty of any kind, whether express or implied.
+*/
+
+#include <linux/dma-mapping.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/clcd.h>
+
+/* This is enough for the size of 800x480 (1.5 MB) */
+#define FRAMESIZE 0x00180000
+
+#ifdef CONFIG_FB_ARMCLCD_SHARP_LQ043T1DG01
+static struct clcd_panel sharp_LQ043T1DG01_in = {
+ .mode = {
+ .name = "Sharp LQ043T1DG01",
+ .refresh = 0,
+ .xres = 480,
+ .yres = 272,
+ .pixclock = 48000,
+ .left_margin = 2,
+ .right_margin = 2,
+ .upper_margin = 2,
+ .lower_margin = 2,
+ .hsync_len = 41,
+ .vsync_len = 11,
+ .sync = 0,/* FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT */
+ .vmode = FB_VMODE_NONINTERLACED,
+ },
+ .width = -1,
+ .height = -1,
+ .tim2 = TIM2_IOE | TIM2_CLKSEL | 3,
+ .cntl = CNTL_LCDTFT | CNTL_BGR,
+ .bpp = 32,
+};
+#endif
+
+#ifdef CONFIG_FB_ARMCLCD_SAMSUNG_LMS700
+static struct clcd_panel samsung_LMS700_in = {
+ .mode = {
+ .name = "Samsung LMS700",
+ .refresh = 0,
+ .xres = 800,
+ .yres = 480,
+ .pixclock = 48000,
+ .left_margin = 16,
+ .right_margin = 8,
+ .upper_margin = 6,
+ .lower_margin = 5,
+ .hsync_len = 3,
+ .vsync_len = 2,
+ .sync = 0,
+ .vmode = FB_VMODE_NONINTERLACED,
+ },
+ .width = -1,
+ .height = -1,
+ .tim2 = TIM2_CLKSEL,
+ .cntl = CNTL_LCDTFT | CNTL_BGR,
+ .bpp = 32,
+};
+#endif
+
+static int clcd_setup(struct clcd_fb *fb)
+{
+ dma_addr_t dma;
+
+ /* Detect which LCD panel is connected */
+#ifdef CONFIG_FB_ARMCLCD_SHARP_LQ043T1DG01
+ fb->panel = &sharp_LQ043T1DG01_in;
+#endif
+#ifdef CONFIG_FB_ARMCLCD_SAMSUNG_LMS700
+ fb->panel = &samsung_LMS700_in;
+#endif
+ fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, FRAMESIZE,
+ &dma, GFP_KERNEL);
+ if (!fb->fb.screen_base) {
+ printk(KERN_ERR "CLCD: unable to map framebuffer\n");
+ return -ENOMEM;
+ }
+ fb->fb.fix.smem_start = dma;
+ fb->fb.fix.smem_len = FRAMESIZE;
+
+ return 0;
+}
+
+static int clcd_check(struct clcd_fb *fb, struct fb_var_screeninfo
+ *var)
+{
+ var->xres_virtual = var->xres = (var->xres + 15) & ~15;
+ var->yres_virtual = var->yres = (var->yres + 1) & ~1;
+
+ var->nonstd = 0;
+ var->accel_flags = 0;
+
+ return 0;
+}
+
+static void clcd_remove(struct clcd_fb *fb)
+{
+ dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
+ fb->fb.screen_base, fb->fb.fix.smem_start);
+}
+
+static int clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
+{
+ return dma_mmap_writecombine(&fb->dev->dev, vma,
+ fb->fb.screen_base,
+ fb->fb.fix.smem_start,
+ fb->fb.fix.smem_len);
+}
+
+struct clcd_board clcd_plat_data = {
+ .name = "spear-clcd",
+ .check = clcd_check,
+ .decode = clcdfb_decode,
+ .setup = clcd_setup,
+ .mmap = clcd_mmap,
+ .remove = clcd_remove,
+};
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 8b31fdf..24c919e 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -307,10 +307,22 @@ config FB_ARMCLCD
choice
- depends on FB_ARMCLCD && (ARCH_LH7A40X || ARCH_LH7952X)
+ depends on FB_ARMCLCD && (ARCH_LH7A40X || ARCH_LH7952X || ARCH_SPEAR6XX || MACH_SPEAR300 || MACH_SPEAR320)
prompt "LCD Panel"
default FB_ARMCLCD_SHARP_LQ035Q7DB02
+config FB_ARMCLCD_SHARP_LQ043T1DG01
+ bool "SHARP LQ043T1DG01 CLCD 4.2\" TFT(480x272)"
+ help
+ This is an implementation of the Sharp LQ043T1DG01, a 4.2"
+ color TFT panel. The native resolution is 480x272.
+
+config FB_ARMCLCD_SAMSUNG_LMS700
+ bool "SAMSUNG CLCD 7\" TFT(800x480)"
+ help
+ This is an implementation of the Samsung LMS700, a 7"
+ color TFT panel. The native resolution is 800x480.
+
config FB_ARMCLCD_SHARP_LQ035Q7DB02_HRTFT
bool "LogicPD LCD 3.5\" QVGA w/HRTFT IC"
help
--
1.7.2.2
More information about the linux-arm-kernel
mailing list