diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-netx/fb.c | 114 | ||||
| -rw-r--r-- | arch/arm/mach-netx/fb.h | 24 |
2 files changed, 138 insertions, 0 deletions
diff --git a/arch/arm/mach-netx/fb.c b/arch/arm/mach-netx/fb.c new file mode 100644 index 00000000000..e169b683e4d --- /dev/null +++ b/arch/arm/mach-netx/fb.c @@ -0,0 +1,114 @@ +/* + * arch/arm/mach-netx/fb.c + * + * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/device.h> +#include <linux/init.h> +#include <linux/dma-mapping.h> +#include <linux/amba/bus.h> +#include <linux/amba/clcd.h> + +#include <asm/arch/netx-regs.h> +#include <asm/arch/hardware.h> + +struct clk {}; + +static struct clk fb_clk; + +static struct clcd_panel *netx_panel; + +void netx_clcd_enable(struct clcd_fb *fb) +{ +} + +int netx_clcd_setup(struct clcd_fb *fb) +{ + dma_addr_t dma; + + fb->panel = netx_panel; + + fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, 1024*1024, + &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 = 1024*1024; + + return 0; +} + +int netx_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); +} + +void netx_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); +} + +void clk_disable(struct clk *clk) +{ +} + +int clk_set_rate(struct clk *clk, unsigned long rate) +{ + return 0; +} + +int clk_enable(struct clk *clk) +{ + return 0; +} + +struct clk *clk_get(struct device *dev, const char *id) +{ + return &fb_clk; +} + +void clk_put(struct clk *clk) +{ +} + +static struct amba_device fb_device = { + .dev = { + .bus_id = "fb", + .coherent_dma_mask = ~0, + }, + .res = { + .start = 0x00104000, + .end = 0x00104fff, + .flags = IORESOURCE_MEM, + }, + .irq = { NETX_IRQ_LCD, NO_IRQ }, + .periphid = 0x10112400, +}; + +int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel) +{ + netx_panel = panel; + fb_device.dev.platform_data = board; + return amba_device_register(&fb_device, &iomem_resource); +} diff --git a/arch/arm/mach-netx/fb.h b/arch/arm/mach-netx/fb.h new file mode 100644 index 00000000000..4919cf33a5f --- /dev/null +++ b/arch/arm/mach-netx/fb.h @@ -0,0 +1,24 @@ +/* + * arch/arm/mach-netx/fb.h + * + * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +void netx_clcd_enable(struct clcd_fb *fb); +int netx_clcd_setup(struct clcd_fb *fb); +int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma); +void netx_clcd_remove(struct clcd_fb *fb); +int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel); |