diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cpu/samsung/exynos5-common/displayport/Kconfig | 2 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5-common/displayport/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5-common/displayport/displayport.c | 107 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5-common/exynos-fb.c | 4 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5250/chip.h (renamed from src/cpu/samsung/exynos5-common/displayport/chip.h) | 8 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5250/cpu.c | 84 | ||||
| -rw-r--r-- | src/mainboard/google/snow/devicetree.cb | 38 |
7 files changed, 102 insertions, 143 deletions
diff --git a/src/cpu/samsung/exynos5-common/displayport/Kconfig b/src/cpu/samsung/exynos5-common/displayport/Kconfig deleted file mode 100644 index 26d1422a8c..0000000000 --- a/src/cpu/samsung/exynos5-common/displayport/Kconfig +++ /dev/null @@ -1,2 +0,0 @@ -config EXYNOS_DISPLAYPORT - bool diff --git a/src/cpu/samsung/exynos5-common/displayport/Makefile.inc b/src/cpu/samsung/exynos5-common/displayport/Makefile.inc deleted file mode 100644 index 7c52eaf6f7..0000000000 --- a/src/cpu/samsung/exynos5-common/displayport/Makefile.inc +++ /dev/null @@ -1,2 +0,0 @@ -ramstage-$(CONFIG_EXYNOS_DISPLAYPORT) += displayport.c - diff --git a/src/cpu/samsung/exynos5-common/displayport/displayport.c b/src/cpu/samsung/exynos5-common/displayport/displayport.c deleted file mode 100644 index 1c08bc710e..0000000000 --- a/src/cpu/samsung/exynos5-common/displayport/displayport.c +++ /dev/null @@ -1,107 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <stdlib.h> -#include <string.h> -#include <delay.h> -#include <arch/io.h> -#include <device/device.h> - -/* 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(void) -{ - struct cpu_samsung_exynos5_common_displayport_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; - void *lcdbase; - - 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->fl_row = conf->yres; - vi->vl_bpix = conf->bpp; - vi->cmap = cbmem_reserve(64*1024); /* The size is a magic number from hardware. */ - - lcdbase = conf->lcdbase; - printk(BIOS_DEBUG, "Initializing exynos VGA\n"); - ret = lcd_ctrl_init(&vi, &panel, lcdbase); -#if 0 - ret = board_dp_lcd_vdd(blob, &wait_ms); - ret = board_dp_bridge_setup(blob, &wait_ms); - while (tries < 5) { - ret = board_dp_bridge_init(blob, &wait_ms); - ret = board_dp_hotplug(blob, &wait_ms); - if (ret) { - ret = board_dp_bridge_reset(blob, &wait_ms); - continue; - } - ret = dp_controller_init(blob, &wait_ms); - ret = board_dp_backlight_vdd(blob, &wait_ms); - ret = board_dp_backlight_pwm(blob, &wait_ms); - ret = board_dp_backlight_en(blob, &wait_ms); - } -#endif -} - -static void exynos_displayport_noop(device_t dummy) -{ -} - -static struct device_operations exynos_displayport_operations = { - .read_resources = exynos_displayport_noop, - .set_resources = exynos_displayport_noop, - .enable_resources = exynos_displayport_noop, - .init = exynos_displayport_init, - .scan_bus = exynos_displayport_noop, -}; - -static void exynos_displayport_enable(struct device *dev) -{ - if (dev->link_list != NULL) - dev->ops = &exynos_displayport_operations; -} - -struct chip_operations drivers_i2c_exynos_displayport_ops = { - CHIP_NAME("exynos displayport") - .enable_dev = exynos_displayport_enable; -}; diff --git a/src/cpu/samsung/exynos5-common/exynos-fb.c b/src/cpu/samsung/exynos5-common/exynos-fb.c index 30d0767923..990a313639 100644 --- a/src/cpu/samsung/exynos5-common/exynos-fb.c +++ b/src/cpu/samsung/exynos5-common/exynos-fb.c @@ -100,7 +100,7 @@ static void fimd_bypass(void) { struct exynos5_sysreg *sysreg = samsung_get_base_sysreg(); - /*setbits_le32(&sysreg->disp1blk_cfg, FIMDBYPASS_DISP1);*/ + setbits_le32(&sysreg->disp1blk_cfg, FIMDBYPASS_DISP1); sysreg->disp1blk_cfg &= ~FIMDBYPASS_DISP1; } @@ -586,7 +586,9 @@ int lcd_ctrl_init(vidinfo_t *panel_info, struct exynos5_fimd_panel *panel_data, //vi->yres = panel_info->vl_row; fimd_bypass(); + printk(BIOS_SPEW, "fimd_bypass\n"); fb_init(panel_info, lcdbase, panel_data); + printk(BIOS_SPEW, "fb_init(%p, %p, %p\n",panel_info, lcdbase, panel_data); /* Enable flushing after LCD writes if requested */ // forget it. lcd_set_flush_dcache(1); diff --git a/src/cpu/samsung/exynos5-common/displayport/chip.h b/src/cpu/samsung/exynos5250/chip.h index 53b7836268..798cd26f7a 100644 --- a/src/cpu/samsung/exynos5-common/displayport/chip.h +++ b/src/cpu/samsung/exynos5250/chip.h @@ -17,10 +17,10 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#ifndef CPU_SAMSUNG_EXYNOS5_COMMON_DISPLAYPORT_H -#define CPU_SAMSUNG_EXYNOS5_COMMON_DISPLAYPORT_H +#ifndef CPU_SAMSUNG_EXYNOS5250_H +#define CPU_SAMSUNG_EXYNOS5250_H -struct cpu_samsung_exynos5_common_displayport_config { +struct cpu_samsung_exynos5250_config { /* special magic numbers! */ int clkval_f; int upper_margin; @@ -37,4 +37,4 @@ struct cpu_samsung_exynos5_common_displayport_config { u32 lcdbase; }; -#endif /* CPU_SAMSUNG_EXYNOS5-COMMON_DISPLAYPORT_H */ +#endif /* CPU_SAMSUNG_EXYNOS5250_H */ diff --git a/src/cpu/samsung/exynos5250/cpu.c b/src/cpu/samsung/exynos5250/cpu.c index bcf4d22dbd..114d6916de 100644 --- a/src/cpu/samsung/exynos5250/cpu.c +++ b/src/cpu/samsung/exynos5250/cpu.c @@ -1,5 +1,14 @@ +#include <stdlib.h> +#include <string.h> +#include <stddef.h> +#include <delay.h> #include <console/console.h> +#include <arch/io.h> #include <device/device.h> +#include <cbmem.h> +#include <cpu/samsung/exynos5250/fimd.h> +#include <cpu/samsung/exynos5-common/s5p-dp-core.h> +#include "chip.h" #define RAM_BASE_KB (CONFIG_SYS_SDRAM_BASE >> 10) #define RAM_SIZE_KB (CONFIG_DRAM_SIZE_MB << 10UL) @@ -28,8 +37,76 @@ static struct device_operations domain_ops = { .scan_bus = domain_scan_bus, }; +/* 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; + u32 lcdbase; + + printk(BIOS_SPEW, "%s: dev %p, conf %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; + printk(BIOS_SPEW, "lcd base is %p\n", (void *)(conf->lcdbase)); + /* The size is a magic number from hardware. */ + mmio_resource(dev, 0, conf->lcdbase/KiB, 64); + vi.cmap = (void *)conf->lcdbase; + lcdbase = conf->lcdbase + 64*KiB; + + mmio_resource(dev, 1, lcdbase, (conf->xres*conf->yres*4 + (KiB-1))/KiB); + printk(BIOS_DEBUG, "Initializing exynos VGA, base %p\n",(void *)lcdbase); + ret = lcd_ctrl_init(&vi, &panel, (void *)lcdbase); +#if 0 + ret = board_dp_lcd_vdd(blob, &wait_ms); + ret = board_dp_bridge_setup(blob, &wait_ms); + while (tries < 5) { + ret = board_dp_bridge_init(blob, &wait_ms); + ret = board_dp_hotplug(blob, &wait_ms); + if (ret) { + ret = board_dp_bridge_reset(blob, &wait_ms); + continue; + } + ret = dp_controller_init(blob, &wait_ms); + ret = board_dp_backlight_vdd(blob, &wait_ms); + ret = board_dp_backlight_pwm(blob, &wait_ms); + ret = board_dp_backlight_en(blob, &wait_ms); + } +#endif +} + static void cpu_init(device_t dev) { + printk(BIOS_SPEW, "%s\n", __func__); + exynos_displayport_init(dev); } static void cpu_noop(device_t dev) @@ -44,17 +121,20 @@ static struct device_operations cpu_ops = { .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_DOMAIN) { + printk(BIOS_SPEW, "%s: DOMAIN\n", __func__); dev->ops = &domain_ops; } else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) { + printk(BIOS_SPEW, "%s: CPU_CLUSTER\n", __func__); dev->ops = &cpu_ops; } + printk(BIOS_SPEW, "%s: done\n", __func__); } struct chip_operations cpu_samsung_exynos5250_ops = { CHIP_NAME("CPU Samsung Exynos 5250") - .enable_dev = enable_dev, + .enable_dev = enable_exynos5250_dev, }; diff --git a/src/mainboard/google/snow/devicetree.cb b/src/mainboard/google/snow/devicetree.cb index 5ad786ef55..cfe5cf183d 100644 --- a/src/mainboard/google/snow/devicetree.cb +++ b/src/mainboard/google/snow/devicetree.cb @@ -17,30 +17,18 @@ ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ## -# FIXME: this is just a stub for now chip cpu/samsung/exynos5250 - -device cpu_cluster 0 on -end - -device domain 0 on - chip drivers/generic/generic # I2C0 controller - device i2c 6 on end # ? - device i2c 9 on end # ? - end - chip cpu/samsung/exynos5-common/displayport - register "xres" = "1366" - register "yres" = "768" - register "bpp" = "16" - # complex magic timing! - register "clkval_f" = "2" - register "upper_margin" = "14" - register "lower_margin" = "3" - register "vsync" = "5" - register "left_margin" = "80" - register "right_margin" = "48" - register "hsync" = "32" - register "lcdbase" = "0x10000000" - end -end + device cpu_cluster 0 on end + register "xres" = "1366" + register "yres" = "768" + register "bpp" = "16" + # complex magic timing! + register "clkval_f" = "2" + register "upper_margin" = "14" + register "lower_margin" = "3" + register "vsync" = "5" + register "left_margin" = "80" + register "right_margin" = "48" + register "hsync" = "32" + register "lcdbase" = "0x50000000" end |