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authorRonald G. Minnich <rminnich@gmail.com>2013-04-09 14:35:35 -0700
committerRonald G. Minnich <rminnich@gmail.com>2013-04-11 00:11:51 +0200
commitb48605da209ed92832fdc1f067feda63b5421e7e (patch)
treed6cdfc382c634b4aedc4f10a0c7bc9eacd8d07b0 /src/cpu
parent1fde22c54cacb15493bbde8835ec9e20f1d39bf5 (diff)
downloadcoreboot-b48605da209ed92832fdc1f067feda63b5421e7e.tar.xz
Exynos5250: Use new chip settings for the cpu
Properly use the chip settings when configuring the CPU, at this point being purely graphics. Change-Id: I9bc2d32c1037653837937b314e4041abc0024835 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/3054 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/cpu')
-rw-r--r--src/cpu/samsung/exynos5250/Kconfig2
-rw-r--r--src/cpu/samsung/exynos5250/cpu.c84
2 files changed, 75 insertions, 11 deletions
diff --git a/src/cpu/samsung/exynos5250/Kconfig b/src/cpu/samsung/exynos5250/Kconfig
index ca306b6de8..cc67abd6ff 100644
--- a/src/cpu/samsung/exynos5250/Kconfig
+++ b/src/cpu/samsung/exynos5250/Kconfig
@@ -96,4 +96,4 @@ config SYS_TEXT_BASE
config COREBOOT_TABLES_SIZE
hex
- default 0x100000
+ default 0x4000000
diff --git a/src/cpu/samsung/exynos5250/cpu.c b/src/cpu/samsung/exynos5250/cpu.c
index 4bb06e8b4a..ee33cf362c 100644
--- a/src/cpu/samsung/exynos5250/cpu.c
+++ b/src/cpu/samsung/exynos5250/cpu.c
@@ -1,13 +1,80 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stddef.h>
+#include <delay.h>
#include <console/console.h>
#include <device/device.h>
-#include <arch/cache.h>
-#include <cpu/samsung/exynos5250/cpu.h>
+#include <cbmem.h>
+#include <cpu/samsung/exynos5250/fimd.h>
+#include <cpu/samsung/exynos5-common/s5p-dp-core.h>
+#include "chip.h"
+#include "cpu.h"
#define RAM_BASE_KB (CONFIG_SYS_SDRAM_BASE >> 10)
#define RAM_SIZE_KB (CONFIG_DRAM_SIZE_MB << 10UL)
+/* we distinguish a display port device from a raw graphics device
+ * because there are dramatic differences in startup depending on
+ * graphics usage. To make startup fast and easier to understand and
+ * debug we explicitly name this common case. The alternate approach,
+ * involving lots of machine and callbacks, is hard to debug and
+ * verify.
+ */
+static void exynos_displayport_init(device_t dev)
+{
+ int ret;
+ struct cpu_samsung_exynos5250_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.
+ */
+ vidinfo_t vi;
+ struct exynos5_fimd_panel panel;
+ unsigned long int fb_size;
+ u32 lcdbase;
+
+ printk(BIOS_SPEW, "%s: dev 0x%p, conf 0x%p\n", __func__, dev, conf);
+ memset(&vi, 0, sizeof(vi));
+ memset(&panel, 0, sizeof(panel));
+
+ panel.is_dp = 1; /* Display I/F is eDP */
+ /* while it is true that we did a memset to zero,
+ * we leave some 'set to zero' entries here to make
+ * it clear what's going on. Graphics is confusing.
+ */
+ panel.is_mipi = 0;
+ panel.fixvclk = 0;
+ panel.ivclk = 0;
+ panel.clkval_f = conf->clkval_f;
+ panel.upper_margin = conf->upper_margin;
+ panel.lower_margin = conf->lower_margin;
+ panel.vsync = conf->vsync;
+ panel.left_margin = conf->left_margin;
+ panel.right_margin = conf->right_margin;
+ panel.hsync = conf->hsync;
+
+ vi.vl_col = conf->xres;
+ vi.vl_row = conf->yres;
+ vi.vl_bpix = conf->bpp;
+ /*
+ * The size is a magic number from hardware. Allocate enough for the
+ * frame buffer and color map.
+ */
+ fb_size = conf->xres * conf->yres * sizeof(unsigned long);
+ lcdbase = (uintptr_t)cbmem_add(CBMEM_ID_CONSOLE, fb_size + 64*KiB);
+ printk(BIOS_SPEW, "lcd colormap base is %p\n", (void *)(lcdbase));
+ mmio_resource(dev, 0, lcdbase/KiB, 64);
+ vi.cmap = (void *)lcdbase;
+
+ lcdbase += 64*KiB;
+ mmio_resource(dev, 1, lcdbase/KiB, fb_size + (KiB-1)/KiB);
+ printk(BIOS_DEBUG,
+ "Initializing exynos VGA, base %p\n",(void *)lcdbase);
+ ret = lcd_ctrl_init(&vi, &panel, (void *)lcdbase);
+}
+
static void cpu_init(device_t dev)
{
+ exynos_displayport_init(dev);
ram_resource(dev, 0, RAM_BASE_KB, RAM_SIZE_KB);
}
@@ -18,22 +85,19 @@ static void cpu_noop(device_t dev)
static struct device_operations cpu_ops = {
.read_resources = cpu_noop,
.set_resources = cpu_noop,
- .enable_resources = cpu_noop,
- .init = cpu_init,
+ .enable_resources = cpu_init,
+ .init = cpu_noop,
.scan_bus = 0,
};
-static void enable_dev(device_t dev)
+static void enable_exynos5250_dev(device_t dev)
{
- /* Set the operations if it is a special bus type */
- if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
- dev->ops = &cpu_ops;
- }
+ dev->ops = &cpu_ops;
}
struct chip_operations cpu_samsung_exynos5250_ops = {
CHIP_NAME("CPU Samsung Exynos 5250")
- .enable_dev = enable_dev,
+ .enable_dev = enable_exynos5250_dev,
};
void exynos5250_config_l2_cache(void)