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authorNicolas Ferre <nicolas.ferre@atmel.com>2008-05-14 19:05:38 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-14 22:11:13 -0400
commit90898709dfca860d9550c85f0924007f4c0467ea (patch)
tree8a22baa316ef15654c444caf0b22b1cb63feb84c /arch/arm/mach-at91
parent3ef0f720e47e895b613b0305eb0a483e3ec11f23 (diff)
atmel_lcdfb: fix initialization of a pre-allocated framebuffer
Fix initialization of framebuffer not calling ioremap_writecombine() function and not using internal SRAM for at91sam9rl. This is a little rework of the "Don't initialize a pre-allocated framebuffer" patch that corrects the call to ioremap_writecombine() function. It also cuts the use of internal SRAM for at91sam9rl : it is a bit small for a framebuffer. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Andrew Victor <linux@maxim.org.za> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm/mach-at91')
-rw-r--r--arch/arm/mach-at91/at91sam9261_devices.c4
-rw-r--r--arch/arm/mach-at91/at91sam9rl_devices.c21
2 files changed, 2 insertions, 23 deletions
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 728bb8f39441..0babb645b83c 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -544,10 +544,10 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
544 struct resource *fb_res = &lcdc_resources[2]; 544 struct resource *fb_res = &lcdc_resources[2];
545 size_t fb_len = fb_res->end - fb_res->start + 1; 545 size_t fb_len = fb_res->end - fb_res->start + 1;
546 546
547 fb = ioremap_writecombine(fb_res->start, fb_len); 547 fb = ioremap(fb_res->start, fb_len);
548 if (fb) { 548 if (fb) {
549 memset(fb, 0, fb_len); 549 memset(fb, 0, fb_len);
550 iounmap(fb, fb_len); 550 iounmap(fb);
551 } 551 }
552 } 552 }
553 lcdc_data = *data; 553 lcdc_data = *data;
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 054689804e77..450db304936f 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -332,13 +332,6 @@ static struct resource lcdc_resources[] = {
332 .end = AT91SAM9RL_ID_LCDC, 332 .end = AT91SAM9RL_ID_LCDC,
333 .flags = IORESOURCE_IRQ, 333 .flags = IORESOURCE_IRQ,
334 }, 334 },
335#if defined(CONFIG_FB_INTSRAM)
336 [2] = {
337 .start = AT91SAM9RL_SRAM_BASE,
338 .end = AT91SAM9RL_SRAM_BASE + AT91SAM9RL_SRAM_SIZE - 1,
339 .flags = IORESOURCE_MEM,
340 },
341#endif
342}; 335};
343 336
344static struct platform_device at91_lcdc_device = { 337static struct platform_device at91_lcdc_device = {
@@ -381,20 +374,6 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
381 at91_set_B_periph(AT91_PIN_PC24, 0); /* LCDD22 */ 374 at91_set_B_periph(AT91_PIN_PC24, 0); /* LCDD22 */
382 at91_set_B_periph(AT91_PIN_PC25, 0); /* LCDD23 */ 375 at91_set_B_periph(AT91_PIN_PC25, 0); /* LCDD23 */
383 376
384#ifdef CONFIG_FB_INTSRAM
385 {
386 void __iomem *fb;
387 struct resource *fb_res = &lcdc_resources[2];
388 size_t fb_len = fb_res->end - fb_res->start + 1;
389
390 fb = ioremap_writecombine(fb_res->start, fb_len);
391 if (fb) {
392 memset(fb, 0, fb_len);
393 iounmap(fb, fb_len);
394 }
395 }
396#endif
397
398 lcdc_data = *data; 377 lcdc_data = *data;
399 platform_device_register(&at91_lcdc_device); 378 platform_device_register(&at91_lcdc_device);
400} 379}