diff options
Diffstat (limited to 'arch/avr32/mach-at32ap/at32ap7000.c')
| -rw-r--r-- | arch/avr32/mach-at32ap/at32ap7000.c | 89 |
1 files changed, 72 insertions, 17 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c index 56db45b99a0..4dda42d3f6d 100644 --- a/arch/avr32/mach-at32ap/at32ap7000.c +++ b/arch/avr32/mach-at32ap/at32ap7000.c @@ -6,8 +6,10 @@ * published by the Free Software Foundation. */ #include <linux/clk.h> +#include <linux/fb.h> #include <linux/init.h> #include <linux/platform_device.h> +#include <linux/dma-mapping.h> #include <linux/spi/spi.h> #include <asm/io.h> @@ -17,6 +19,8 @@ #include <asm/arch/portmux.h> #include <asm/arch/sm.h> +#include <video/atmel_lcdc.h> + #include "clock.h" #include "hmatrix.h" #include "pio.h" @@ -42,19 +46,30 @@ .flags = IORESOURCE_IRQ, \ } +/* REVISIT these assume *every* device supports DMA, but several + * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more. + */ #define DEFINE_DEV(_name, _id) \ +static u64 _name##_id##_dma_mask = DMA_32BIT_MASK; \ static struct platform_device _name##_id##_device = { \ .name = #_name, \ .id = _id, \ + .dev = { \ + .dma_mask = &_name##_id##_dma_mask, \ + .coherent_dma_mask = DMA_32BIT_MASK, \ + }, \ .resource = _name##_id##_resource, \ .num_resources = ARRAY_SIZE(_name##_id##_resource), \ } #define DEFINE_DEV_DATA(_name, _id) \ +static u64 _name##_id##_dma_mask = DMA_32BIT_MASK; \ static struct platform_device _name##_id##_device = { \ .name = #_name, \ .id = _id, \ .dev = { \ + .dma_mask = &_name##_id##_dma_mask, \ .platform_data = &_name##_id##_data, \ + .coherent_dma_mask = DMA_32BIT_MASK, \ }, \ .resource = _name##_id##_resource, \ .num_resources = ARRAY_SIZE(_name##_id##_resource), \ @@ -881,20 +896,26 @@ at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n) /* -------------------------------------------------------------------- * LCDC * -------------------------------------------------------------------- */ -static struct lcdc_platform_data lcdc0_data; -static struct resource lcdc0_resource[] = { +static struct atmel_lcdfb_info atmel_lcdfb0_data; +static struct resource atmel_lcdfb0_resource[] = { { .start = 0xff000000, .end = 0xff000fff, .flags = IORESOURCE_MEM, }, IRQ(1), + { + /* Placeholder for pre-allocated fb memory */ + .start = 0x00000000, + .end = 0x00000000, + .flags = 0, + }, }; -DEFINE_DEV_DATA(lcdc, 0); -DEV_CLK(hclk, lcdc0, hsb, 7); -static struct clk lcdc0_pixclk = { - .name = "pixclk", - .dev = &lcdc0_device.dev, +DEFINE_DEV_DATA(atmel_lcdfb, 0); +DEV_CLK(hck1, atmel_lcdfb0, hsb, 7); +static struct clk atmel_lcdfb0_pixclk = { + .name = "lcdc_clk", + .dev = &atmel_lcdfb0_device.dev, .mode = genclk_mode, .get_rate = genclk_get_rate, .set_rate = genclk_set_rate, @@ -903,13 +924,34 @@ static struct clk lcdc0_pixclk = { }; struct platform_device *__init -at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data) +at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data, + unsigned long fbmem_start, unsigned long fbmem_len) { struct platform_device *pdev; + struct atmel_lcdfb_info *info; + struct fb_monspecs *monspecs; + struct fb_videomode *modedb; + unsigned int modedb_size; + + /* + * Do a deep copy of the fb data, monspecs and modedb. Make + * sure all allocations are done before setting up the + * portmux. + */ + monspecs = kmemdup(data->default_monspecs, + sizeof(struct fb_monspecs), GFP_KERNEL); + if (!monspecs) + return NULL; + + modedb_size = sizeof(struct fb_videomode) * monspecs->modedb_len; + modedb = kmemdup(monspecs->modedb, modedb_size, GFP_KERNEL); + if (!modedb) + goto err_dup_modedb; + monspecs->modedb = modedb; switch (id) { case 0: - pdev = &lcdc0_device; + pdev = &atmel_lcdfb0_device; select_peripheral(PC(19), PERIPH_A, 0); /* CC */ select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC */ select_peripheral(PC(21), PERIPH_A, 0); /* PCLK */ @@ -942,19 +984,32 @@ at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data) select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */ select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */ - clk_set_parent(&lcdc0_pixclk, &pll0); - clk_set_rate(&lcdc0_pixclk, clk_get_rate(&pll0)); + clk_set_parent(&atmel_lcdfb0_pixclk, &pll0); + clk_set_rate(&atmel_lcdfb0_pixclk, clk_get_rate(&pll0)); break; default: - return NULL; + goto err_invalid_id; } - memcpy(pdev->dev.platform_data, data, - sizeof(struct lcdc_platform_data)); + if (fbmem_len) { + pdev->resource[2].start = fbmem_start; + pdev->resource[2].end = fbmem_start + fbmem_len - 1; + pdev->resource[2].flags = IORESOURCE_MEM; + } + + info = pdev->dev.platform_data; + memcpy(info, data, sizeof(struct atmel_lcdfb_info)); + info->default_monspecs = monspecs; platform_device_register(pdev); return pdev; + +err_invalid_id: + kfree(modedb); +err_dup_modedb: + kfree(monspecs); + return NULL; } /* -------------------------------------------------------------------- @@ -1037,8 +1092,8 @@ struct clk *at32_clock_list[] = { &macb1_pclk, &atmel_spi0_spi_clk, &atmel_spi1_spi_clk, - &lcdc0_hclk, - &lcdc0_pixclk, + &atmel_lcdfb0_hck1, + &atmel_lcdfb0_pixclk, &gclk0, &gclk1, &gclk2, @@ -1077,7 +1132,7 @@ void __init at32_clock_init(void) genclk_init_parent(&gclk2); genclk_init_parent(&gclk3); genclk_init_parent(&gclk4); - genclk_init_parent(&lcdc0_pixclk); + genclk_init_parent(&atmel_lcdfb0_pixclk); /* * Turn on all clocks that have at least one user already, and |