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[ARM] 3041/1: AAEC-2000 - CLCD controller platform glue

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Patch from Bellido Nicolas

The AAEC-2000 has an ARM PrimeCell PL110 Color LCD Controller.
This patch contains the platform glue that will be used by specific boards.

Signed-off-by: Nicolas Bellido <ml@acolin.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Bellido Nicolas 2005-10-28 16:51:44 +01:00 committed by Russell King
parent 4224b67c9a
commit 049eb3298a
4 changed files with 105 additions and 0 deletions
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1
arch/arm/Kconfig
View File

@ -204,6 +204,7 @@ config ARCH_H720X
config ARCH_AAEC2000
bool "Agilent AAEC-2000 based"
select ARM_AMBA
help
This enables support for systems based on the Agilent AAEC-2000

90
arch/arm/mach-aaec2000/core.c
View File

@ -16,18 +16,24 @@
#include <linux/device.h>
#include <linux/list.h>
#include <linux/errno.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/timex.h>
#include <linux/signal.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/sizes.h>
#include <asm/hardware/amba.h>
#include <asm/mach/flash.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include "core.h"
#include "clock.h"
/*
* Common I/O mapping:
*
@ -165,6 +171,81 @@ struct sys_timer aaec2000_timer = {
.offset = aaec2000_gettimeoffset,
};
static struct clcd_panel mach_clcd_panel;
static int aaec2000_clcd_setup(struct clcd_fb *fb)
{
dma_addr_t dma;
fb->panel = &mach_clcd_panel;
fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, SZ_1M,
&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 = SZ_1M;
return 0;
}
static int aaec2000_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);
}
static void aaec2000_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 struct clcd_board clcd_plat_data = {
.name = "AAEC-2000",
.check = clcdfb_check,
.decode = clcdfb_decode,
.setup = aaec2000_clcd_setup,
.mmap = aaec2000_clcd_mmap,
.remove = aaec2000_clcd_remove,
};
static struct amba_device clcd_device = {
.dev = {
.bus_id = "mb:16",
.coherent_dma_mask = ~0,
.platform_data = &clcd_plat_data,
},
.res = {
.start = AAEC_CLCD_PHYS,
.end = AAEC_CLCD_PHYS + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
.irq = { INT_LCD, NO_IRQ },
.periphid = 0x41110,
};
static struct amba_device *amba_devs[] __initdata = {
&clcd_device,
};
static struct clk aaec2000_clcd_clk = {
.name = "CLCDCLK",
};
void __init aaec2000_set_clcd_plat_data(struct aaec2000_clcd_info *clcd)
{
clcd_plat_data.enable = clcd->enable;
clcd_plat_data.disable = clcd->disable;
memcpy(&mach_clcd_panel, &clcd->panel, sizeof(struct clcd_panel));
}
static struct flash_platform_data aaec2000_flash_data = {
.map_name = "cfi_probe",
.width = 4,
@ -188,6 +269,15 @@ static struct platform_device aaec2000_flash_device = {
static int __init aaec2000_init(void)
{
int i;
clk_register(&aaec2000_clcd_clk);
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
struct amba_device *d = amba_devs[i];
amba_device_register(d, &iomem_resource);
}
platform_device_register(&aaec2000_flash_device);
return 0;

11
arch/arm/mach-aaec2000/core.h
View File

@ -9,8 +9,19 @@
*
*/
#include <asm/hardware/amba_clcd.h>
struct sys_timer;
extern struct sys_timer aaec2000_timer;
extern void __init aaec2000_map_io(void);
extern void __init aaec2000_init_irq(void);
struct aaec2000_clcd_info {
struct clcd_panel panel;
void (*disable)(struct clcd_fb *);
void (*enable)(struct clcd_fb *);
};
extern void __init aaec2000_set_clcd_plat_data(struct aaec2000_clcd_info *);

3
include/asm-arm/arch-aaec2000/aaec2000.h
View File

@ -201,4 +201,7 @@
#define AAEC_GPIO_PINMUX_CODECON (1 << 2)
#define AAEC_GPIO_PINMUX_UART3CON (1 << 3)
/* LCD Controller */
#define AAEC_CLCD_PHYS 0x80003000
#endif /* __ARM_ARCH_AAEC2000_H */