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| author | Stefan Reinauer <reinauer@chromium.org> | 2013-07-29 15:52:23 -0700 |
|---|---|---|
| committer | Patrick Georgi <patrick@georgi-clan.de> | 2013-12-21 18:30:54 +0100 |
| commit | 80e6293a89fd3e0dc564b2ac04063aa4aa7cafab (patch) | |
| tree | 61f36f89ab31d9b81794029d0345786d46a3bc2e /src/cpu/samsung/exynos5420/cpu.c | |
| parent | 662874446a55356ed74ebf7acdcfa276752214bf (diff) | |
| download | coreboot-80e6293a89fd3e0dc564b2ac04063aa4aa7cafab.tar.xz | |
Exynos 5420: Enable dynamic CBMEM
... In order to do this, the graphics memory has to move into
the resource allocator and out of CBMEM.
Change-Id: I565c3d6dea747822fbabf6f3845232d4adfbf333
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/63657
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/4391
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/cpu/samsung/exynos5420/cpu.c')
| -rw-r--r-- | src/cpu/samsung/exynos5420/cpu.c | 32 |
1 files changed, 13 insertions, 19 deletions
diff --git a/src/cpu/samsung/exynos5420/cpu.c b/src/cpu/samsung/exynos5420/cpu.c index 744f7ae0c7..27fa08d5aa 100644 --- a/src/cpu/samsung/exynos5420/cpu.c +++ b/src/cpu/samsung/exynos5420/cpu.c @@ -32,9 +32,6 @@ #include "usb.h" #include "chip.h" -#define RAM_BASE_KB (CONFIG_SYS_SDRAM_BASE >> 10) -#define RAM_SIZE_KB (CONFIG_DRAM_SIZE_MB << 10UL) - static unsigned int cpu_id; static unsigned int cpu_rev; @@ -62,16 +59,14 @@ static void set_cpu_id(void) * involving lots of machine and callbacks, is hard to debug and * verify. */ -static void exynos_displayport_init(device_t dev) +static void exynos_displayport_init(device_t dev, u32 lcdbase, + unsigned long fb_size) { struct cpu_samsung_exynos5420_config *conf = dev->chip_info; /* put these on the stack. If, at some point, we want to move * this code to a pre-ram stage, it will be much easier. */ struct exynos5_fimd_panel panel; - unsigned long int fb_size; - u32 lcdbase; - memset(&panel, 0, sizeof(panel)); panel.is_dp = 1; /* Display I/F is eDP */ @@ -92,11 +87,7 @@ static void exynos_displayport_init(device_t dev) panel.xres = conf->xres; panel.yres = conf->yres; - /* The size is a magic number from hardware. */ - fb_size = conf->xres * conf->yres * (conf->bpp / 8); - lcdbase = (uintptr_t)cbmem_add(CBMEM_ID_CONSOLE, fb_size); - printk(BIOS_SPEW, "LCD framebuffer base is %p\n", (void *)(lcdbase)); - + printk(BIOS_SPEW, "LCD framebuffer @%p\n", (void *)(lcdbase)); memset((void *)lcdbase, 0, fb_size); /* clear the framebuffer */ /* @@ -110,23 +101,26 @@ static void exynos_displayport_init(device_t dev) */ uint32_t lower = ALIGN_DOWN(lcdbase, MiB); uint32_t upper = ALIGN_UP(lcdbase + fb_size, MiB); + dcache_clean_invalidate_by_mva(lower, upper - lower); - mmu_config_range(lower/MiB, (upper - lower)/MiB, DCACHE_OFF); + mmu_config_range(lower / MiB, (upper - lower) / MiB, DCACHE_OFF); + + printk(BIOS_DEBUG, "Initializing Exynos LCD.\n"); - mmio_resource(dev, 1, lcdbase/KiB, (fb_size + KiB - 1)/KiB); - printk(BIOS_DEBUG, - "Initializing Exynos VGA, base %p\n", (void *)lcdbase); lcd_ctrl_init(fb_size, &panel, (void *)lcdbase); } static void cpu_enable(device_t dev) { - exynos_displayport_init(dev); + unsigned long fb_size = FB_SIZE_KB * KiB; + u32 lcdbase = get_fb_base_kb() * KiB; - ram_resource(dev, 0, RAM_BASE_KB, RAM_SIZE_KB); + ram_resource(dev, 0, RAM_BASE_KB, RAM_SIZE_KB - FB_SIZE_KB); + mmio_resource(dev, 1, lcdbase / KiB, (fb_size + KiB - 1) / KiB); - set_cpu_id(); + exynos_displayport_init(dev, lcdbase, fb_size); + set_cpu_id(); } static void cpu_init(device_t dev) |