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Diffstat (limited to 'arch/arm/mach-realview/core.c')
-rw-r--r--arch/arm/mach-realview/core.c233
1 files changed, 40 insertions, 193 deletions
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 1c6602cf50e..75dbc8791d0 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -51,6 +51,7 @@
#include <mach/irqs.h>
#include <asm/hardware/timer-sp.h>
+#include <plat/clcd.h>
#include <plat/sched_clock.h>
#include "core.h"
@@ -359,18 +360,19 @@ static struct clk_lookup lookups[] = {
}
};
-static int __init clk_init(void)
+void __init realview_init_early(void)
{
+ void __iomem *sys = __io_address(REALVIEW_SYS_BASE);
+
if (machine_is_realview_pb1176())
- oscvco_clk.vcoreg = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_OSC0_OFFSET;
+ oscvco_clk.vcoreg = sys + REALVIEW_SYS_OSC0_OFFSET;
else
- oscvco_clk.vcoreg = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_OSC4_OFFSET;
+ oscvco_clk.vcoreg = sys + REALVIEW_SYS_OSC4_OFFSET;
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
- return 0;
+ versatile_sched_clock_init(sys + REALVIEW_SYS_24MHz_OFFSET, 24000000);
}
-core_initcall(clk_init);
/*
* CLCD support.
@@ -385,157 +387,6 @@ core_initcall(clk_init);
#define SYS_CLCD_ID_SANYO_2_5 (0x07 << 8)
#define SYS_CLCD_ID_VGA (0x1f << 8)
-static struct clcd_panel vga = {
- .mode = {
- .name = "VGA",
- .refresh = 60,
- .xres = 640,
- .yres = 480,
- .pixclock = 39721,
- .left_margin = 40,
- .right_margin = 24,
- .upper_margin = 32,
- .lower_margin = 11,
- .hsync_len = 96,
- .vsync_len = 2,
- .sync = 0,
- .vmode = FB_VMODE_NONINTERLACED,
- },
- .width = -1,
- .height = -1,
- .tim2 = TIM2_BCD | TIM2_IPC,
- .cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
- .bpp = 16,
-};
-
-static struct clcd_panel xvga = {
- .mode = {
- .name = "XVGA",
- .refresh = 60,
- .xres = 1024,
- .yres = 768,
- .pixclock = 15748,
- .left_margin = 152,
- .right_margin = 48,
- .upper_margin = 23,
- .lower_margin = 3,
- .hsync_len = 104,
- .vsync_len = 4,
- .sync = 0,
- .vmode = FB_VMODE_NONINTERLACED,
- },
- .width = -1,
- .height = -1,
- .tim2 = TIM2_BCD | TIM2_IPC,
- .cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
- .bpp = 16,
-};
-
-static struct clcd_panel sanyo_3_8_in = {
- .mode = {
- .name = "Sanyo QVGA",
- .refresh = 116,
- .xres = 320,
- .yres = 240,
- .pixclock = 100000,
- .left_margin = 6,
- .right_margin = 6,
- .upper_margin = 5,
- .lower_margin = 5,
- .hsync_len = 6,
- .vsync_len = 6,
- .sync = 0,
- .vmode = FB_VMODE_NONINTERLACED,
- },
- .width = -1,
- .height = -1,
- .tim2 = TIM2_BCD,
- .cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
- .bpp = 16,
-};
-
-static struct clcd_panel sanyo_2_5_in = {
- .mode = {
- .name = "Sanyo QVGA Portrait",
- .refresh = 116,
- .xres = 240,
- .yres = 320,
- .pixclock = 100000,
- .left_margin = 20,
- .right_margin = 10,
- .upper_margin = 2,
- .lower_margin = 2,
- .hsync_len = 10,
- .vsync_len = 2,
- .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED,
- },
- .width = -1,
- .height = -1,
- .tim2 = TIM2_IVS | TIM2_IHS | TIM2_IPC,
- .cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
- .bpp = 16,
-};
-
-static struct clcd_panel epson_2_2_in = {
- .mode = {
- .name = "Epson QCIF",
- .refresh = 390,
- .xres = 176,
- .yres = 220,
- .pixclock = 62500,
- .left_margin = 3,
- .right_margin = 2,
- .upper_margin = 1,
- .lower_margin = 0,
- .hsync_len = 3,
- .vsync_len = 2,
- .sync = 0,
- .vmode = FB_VMODE_NONINTERLACED,
- },
- .width = -1,
- .height = -1,
- .tim2 = TIM2_BCD | TIM2_IPC,
- .cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
- .bpp = 16,
-};
-
-/*
- * Detect which LCD panel is connected, and return the appropriate
- * clcd_panel structure. Note: we do not have any information on
- * the required timings for the 8.4in panel, so we presently assume
- * VGA timings.
- */
-static struct clcd_panel *realview_clcd_panel(void)
-{
- void __iomem *sys_clcd = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_CLCD_OFFSET;
- struct clcd_panel *vga_panel;
- struct clcd_panel *panel;
- u32 val;
-
- if (machine_is_realview_eb())
- vga_panel = &vga;
- else
- vga_panel = &xvga;
-
- val = readl(sys_clcd) & SYS_CLCD_ID_MASK;
- if (val == SYS_CLCD_ID_SANYO_3_8)
- panel = &sanyo_3_8_in;
- else if (val == SYS_CLCD_ID_SANYO_2_5)
- panel = &sanyo_2_5_in;
- else if (val == SYS_CLCD_ID_EPSON_2_2)
- panel = &epson_2_2_in;
- else if (val == SYS_CLCD_ID_VGA)
- panel = vga_panel;
- else {
- printk(KERN_ERR "CLCD: unknown LCD panel ID 0x%08x, using VGA\n",
- val);
- panel = vga_panel;
- }
-
- return panel;
-}
-
/*
* Disable all display connectors on the interface module.
*/
@@ -565,56 +416,60 @@ static void realview_clcd_enable(struct clcd_fb *fb)
writel(val, sys_clcd);
}
+/*
+ * Detect which LCD panel is connected, and return the appropriate
+ * clcd_panel structure. Note: we do not have any information on
+ * the required timings for the 8.4in panel, so we presently assume
+ * VGA timings.
+ */
static int realview_clcd_setup(struct clcd_fb *fb)
{
+ void __iomem *sys_clcd = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_CLCD_OFFSET;
+ const char *panel_name, *vga_panel_name;
unsigned long framesize;
- dma_addr_t dma;
+ u32 val;
- if (machine_is_realview_eb())
+ if (machine_is_realview_eb()) {
/* VGA, 16bpp */
framesize = 640 * 480 * 2;
- else
+ vga_panel_name = "VGA";
+ } else {
/* XVGA, 16bpp */
framesize = 1024 * 768 * 2;
-
- fb->panel = realview_clcd_panel();
-
- fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize,
- &dma, GFP_KERNEL | GFP_DMA);
- if (!fb->fb.screen_base) {
- printk(KERN_ERR "CLCD: unable to map framebuffer\n");
- return -ENOMEM;
+ vga_panel_name = "XVGA";
}
- fb->fb.fix.smem_start = dma;
- fb->fb.fix.smem_len = framesize;
-
- return 0;
-}
+ val = readl(sys_clcd) & SYS_CLCD_ID_MASK;
+ if (val == SYS_CLCD_ID_SANYO_3_8)
+ panel_name = "Sanyo TM38QV67A02A";
+ else if (val == SYS_CLCD_ID_SANYO_2_5)
+ panel_name = "Sanyo QVGA Portrait";
+ else if (val == SYS_CLCD_ID_EPSON_2_2)
+ panel_name = "Epson L2F50113T00";
+ else if (val == SYS_CLCD_ID_VGA)
+ panel_name = vga_panel_name;
+ else {
+ pr_err("CLCD: unknown LCD panel ID 0x%08x, using VGA\n", val);
+ panel_name = vga_panel_name;
+ }
-static int realview_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);
-}
+ fb->panel = versatile_clcd_get_panel(panel_name);
+ if (!fb->panel)
+ return -EINVAL;
-static void realview_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);
+ return versatile_clcd_setup_dma(fb, framesize);
}
struct clcd_board clcd_plat_data = {
.name = "RealView",
+ .caps = CLCD_CAP_ALL,
.check = clcdfb_check,
.decode = clcdfb_decode,
.disable = realview_clcd_disable,
.enable = realview_clcd_enable,
.setup = realview_clcd_setup,
- .mmap = realview_clcd_mmap,
- .remove = realview_clcd_remove,
+ .mmap = versatile_clcd_mmap_dma,
+ .remove = versatile_clcd_remove_dma,
};
#ifdef CONFIG_LEDS
@@ -656,12 +511,6 @@ void realview_leds_event(led_event_t ledevt)
#endif /* CONFIG_LEDS */
/*
- * The sched_clock counter
- */
-#define REFCOUNTER (__io_address(REALVIEW_SYS_BASE) + \
- REALVIEW_SYS_24MHz_OFFSET)
-
-/*
* Where is the timer (VA)?
*/
void __iomem *timer0_va_base;
@@ -676,8 +525,6 @@ void __init realview_timer_init(unsigned int timer_irq)
{
u32 val;
- versatile_sched_clock_init(REFCOUNTER, 24000000);
-
/*
* set clock frequency:
* REALVIEW_REFCLK is 32KHz
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-21 02:15:49 +0000