Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 15:14:43 +00:00
Code Issues Projects Releases Packages Wiki Activity

tegra: nyan-big: Move the LCD driver to driver model

Browse source 
Adjust the driver to use driver model. The SOR becomes a bridge device. We
use the normal simple_panel driver to handle the display itself. We also
need to enable some options such as regulators, PWMs and DM_VIDEO itself.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Simon Glass 2016-01-30 16:37:50 -07:00 committed by Tom Warren
parent 135a87ef43
commit d76592122b
10 changed files with 253 additions and 205 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
configs/nyan-big_defconfig
View file

@ -12,6 +12,8 @@ CONFIG_SYS_PROMPT="Tegra124 (Nyan-big) # "
CONFIG_CMD_GPIO=y
# CONFIG_CMD_SETEXPR is not set
# CONFIG_CMD_NFS is not set
CONFIG_CMD_PMIC=y
CONFIG_CMD_REGULATOR=y
CONFIG_CMD_TPM=y
CONFIG_CMD_TPM_TEST=y
CONFIG_CROS_EC_KEYB=y
@ -20,6 +22,10 @@ CONFIG_CROS_EC=y
CONFIG_CROS_EC_SPI=y
CONFIG_SPI_FLASH=y
CONFIG_SPI_FLASH_WINBOND=y
CONFIG_DM_PMIC=y
CONFIG_DM_REGULATOR=y
CONFIG_DM_REGULATOR_FIXED=y
CONFIG_DM_PWM=y
CONFIG_SYS_NS16550=y
CONFIG_TEGRA114_SPI=y
CONFIG_TPM_TIS_INFINEON=y
@ -27,6 +33,9 @@ CONFIG_USB=y
CONFIG_DM_USB=y
CONFIG_DISPLAY=y
CONFIG_I2C_EDID=y
CONFIG_DM_VIDEO=y
CONFIG_VIDEO_TEGRA124=y
CONFIG_VIDEO_BRIDGE=y
CONFIG_USE_PRIVATE_LIBGCC=y
CONFIG_TPM=y
CONFIG_ERRNO_STR=y

1
drivers/video/Kconfig
View file

@ -383,6 +383,7 @@ config VIDEO_SANDBOX_SDL
config VIDEO_TEGRA124
bool "Enable video support on Tegra124"
depends on DM_VIDEO
help
Tegra124 supports many video output options including eDP and
HDMI. At present only eDP is supported by U-Boot. This option

1
drivers/video/simple_panel.c
View file

@ -85,6 +85,7 @@ static const struct panel_ops simple_panel_ops = {
static const struct udevice_id simple_panel_ids[] = {
{ .compatible = "simple-panel" },
{ .compatible = "auo,b133xtn01" },
{ }
};

171
drivers/video/tegra124/display.c
View file

@ -14,11 +14,13 @@
#include <edid.h>
#include <fdtdec.h>
#include <lcd.h>
#include <video.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/pwm.h>
#include <asm/arch-tegra/dc.h>
#include <dm/uclass-internal.h>
#include "displayport.h"
DECLARE_GLOBAL_DATA_PTR;
@ -333,73 +335,46 @@ static int display_update_config_from_edid(struct udevice *dp_dev,
return 0;
}
/* Somewhat torturous method */
static int get_backlight_info(const void *blob, struct gpio_desc *vdd,
struct gpio_desc *enable, int *pwmp)
{
int sor, panel, backlight, power;
const u32 *prop;
int len;
int ret;
*pwmp = 0;
sor = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_SOR);
if (sor < 0)
return -ENOENT;
panel = fdtdec_lookup_phandle(blob, sor, "nvidia,panel");
if (panel < 0)
return -ENOENT;
backlight = fdtdec_lookup_phandle(blob, panel, "backlight");
if (backlight < 0)
return -ENOENT;
ret = gpio_request_by_name_nodev(blob, backlight, "enable-gpios", 0,
enable, GPIOD_IS_OUT);
if (ret)
return ret;
prop = fdt_getprop(blob, backlight, "pwms", &len);
if (!prop || len != 3 * sizeof(u32))
return -EINVAL;
*pwmp = fdt32_to_cpu(prop[1]);
power = fdtdec_lookup_phandle(blob, backlight, "power-supply");
if (power < 0)
return -ENOENT;
ret = gpio_request_by_name_nodev(blob, power, "gpio", 0, vdd,
GPIOD_IS_OUT);
if (ret)
goto err;
return 0;
err:
dm_gpio_free(NULL, enable);
return ret;
}
static int display_init(void *lcdbase, int fb_bits_per_pixel,
struct display_timing *timing)
static int display_init(struct udevice *dev, void *lcdbase,
int fb_bits_per_pixel, struct display_timing *timing)
{
struct display_plat *disp_uc_plat;
struct dc_ctlr *dc_ctlr;
const void *blob = gd->fdt_blob;
struct udevice *dp_dev;
const int href_to_sync = 1, vref_to_sync = 1;
int panel_bpp = 18; /* default 18 bits per pixel */
u32 plld_rate;
struct gpio_desc vdd_gpio, enable_gpio;
int pwm;
int node;
int ret;
ret = uclass_get_device(UCLASS_DISPLAY, 0, &dp_dev);
if (ret)
/*
* Before we probe the display device (eDP), tell it that this device
* is are the source of the display data.
*/
ret = uclass_find_first_device(UCLASS_DISPLAY, &dp_dev);
if (ret) {
debug("%s: device '%s' display not found (ret=%d)\n", __func__,
dev->name, ret);
return ret;
}
node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_DC);
if (node < 0)
return -ENOENT;
dc_ctlr = (struct dc_ctlr *)fdtdec_get_addr(blob, node, "reg");
if (fdtdec_decode_display_timing(blob, node, 0, timing))
disp_uc_plat = dev_get_uclass_platdata(dp_dev);
debug("Found device '%s', disp_uc_priv=%p\n", dp_dev->name,
disp_uc_plat);
disp_uc_plat->src_dev = dev;
ret = uclass_get_device(UCLASS_DISPLAY, 0, &dp_dev);
if (ret) {
debug("%s: Failed to probe eDP, ret=%d\n", __func__, ret);
return ret;
}
dc_ctlr = (struct dc_ctlr *)fdtdec_get_addr(blob, dev->of_offset,
"reg");
if (fdtdec_decode_display_timing(blob, dev->of_offset, 0, timing)) {
debug("%s: Failed to decode display timing\n", __func__);
return -EINVAL;
}
ret = display_update_config_from_edid(dp_dev, &panel_bpp, timing);
if (ret) {
@ -407,12 +382,6 @@ static int display_init(void *lcdbase, int fb_bits_per_pixel,
dump_config(panel_bpp, timing);
}
if (!get_backlight_info(blob, &vdd_gpio, &enable_gpio, &pwm)) {
dm_gpio_set_value(&vdd_gpio, 1);
debug("%s: backlight vdd setting gpio %08x to %d\n",
__func__, gpio_get_number(&vdd_gpio), 1);
}
/*
* The plld is programmed with the assumption of the SHIFT_CLK_DIVIDER
* and PIXEL_CLK_DIVIDER are zero (divide by 1). See the
@ -443,21 +412,15 @@ static int display_init(void *lcdbase, int fb_bits_per_pixel,
/* Enable dp */
ret = display_enable(dp_dev, panel_bpp, timing);
if (ret)
if (ret) {
debug("dc: failed to enable display: ret=%d\n", ret);
return ret;
}
ret = update_window(dc_ctlr, (ulong)lcdbase, fb_bits_per_pixel, timing);
if (ret)
if (ret) {
debug("dc: failed to update window\n");
return ret;
/* Set up Tegra PWM to drive the panel backlight */
pwm_enable(pwm, 0, 220, 0x2e);
udelay(10 * 1000);
if (dm_gpio_is_valid(&enable_gpio)) {
dm_gpio_set_value(&enable_gpio, 1);
debug("%s: backlight enable setting gpio %08x to %d\n",
__func__, gpio_get_number(&enable_gpio), 1);
}
return 0;
@ -470,29 +433,10 @@ enum {
LCD_MAX_LOG2_BPP = 4, /* 2^4 = 16 bpp */
};
vidinfo_t panel_info = {
/* Insert a value here so that we don't end up in the BSS */
.vl_col = -1,
};
int tegra_lcd_check_next_stage(const void *blob, int wait)
{
return 0;
}
void tegra_lcd_early_init(const void *blob)
{
/*
* Go with the maximum size for now. We will fix this up after
* relocation. These values are only used for memory alocation.
*/
panel_info.vl_col = LCD_MAX_WIDTH;
panel_info.vl_row = LCD_MAX_HEIGHT;
panel_info.vl_bpix = LCD_MAX_LOG2_BPP;
}
static int tegra124_lcd_init(void *lcdbase)
static int tegra124_lcd_init(struct udevice *dev, void *lcdbase,
enum video_log2_bpp l2bpp)
{
struct video_priv *uc_priv = dev_get_uclass_priv(dev);
struct display_timing timing;
int ret;
@ -512,30 +456,55 @@ static int tegra124_lcd_init(void *lcdbase)
reset_set_enable(PERIPH_ID_DPAUX, 0);
reset_set_enable(PERIPH_ID_SOR0, 0);
ret = display_init(lcdbase, 1 << LCD_BPP, &timing);
ret = display_init(dev, lcdbase, 1 << l2bpp, &timing);
if (ret)
return ret;
panel_info.vl_col = roundup(timing.hactive.typ, 16);
panel_info.vl_row = timing.vactive.typ;
uc_priv->xsize = roundup(timing.hactive.typ, 16);
uc_priv->ysize = timing.vactive.typ;
uc_priv->bpix = l2bpp;
lcd_set_flush_dcache(1);
video_set_flush_dcache(dev, 1);
debug("%s: done\n", __func__);
return 0;
}
void lcd_ctrl_init(void *lcdbase)
static int tegra124_lcd_probe(struct udevice *dev)
{
struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
ulong start;
int ret;
start = get_timer(0);
ret = tegra124_lcd_init(lcdbase);
ret = tegra124_lcd_init(dev, (void *)plat->base, VIDEO_BPP16);
debug("LCD init took %lu ms\n", get_timer(start));
if (ret)
printf("%s: Error %d\n", __func__, ret);
return 0;
}
void lcd_enable(void)
static int tegra124_lcd_bind(struct udevice *dev)
{
struct video_uc_platdata *uc_plat = dev_get_uclass_platdata(dev);
uc_plat->size = LCD_MAX_WIDTH * LCD_MAX_HEIGHT *
(1 << VIDEO_BPP16) / 8;
debug("%s: Frame buffer size %x\n", __func__, uc_plat->size);
return 0;
}
static const struct udevice_id tegra124_lcd_ids[] = {
{ .compatible = "nvidia,tegra124-dc" },
{ }
};
U_BOOT_DRIVER(tegra124_dc) = {
.name = "tegra124-dc",
.id = UCLASS_VIDEO,
.of_match = tegra124_lcd_ids,
.bind = tegra124_lcd_bind,
.probe = tegra124_lcd_probe,
};

53
drivers/video/tegra124/dp.c
View file

@ -11,6 +11,7 @@
#include <div64.h>
#include <errno.h>
#include <fdtdec.h>
#include <video_bridge.h>
#include <asm/io.h>
#include <asm/arch-tegra/dc.h>
#include "display.h"
@ -26,9 +27,15 @@ struct tegra_dp_plat {
ulong base;
};
/**
* struct tegra_dp_priv - private displayport driver info
*
* @dc_dev: Display controller device that is sending the video feed
*/
struct tegra_dp_priv {
struct udevice *sor;
struct udevice *dc_dev;
struct dpaux_ctlr *regs;
struct tegra_dc_sor_data *sor;
u8 revision;
int enabled;
};
@ -710,8 +717,8 @@ static int tegra_dc_dp_init_max_link_cfg(
return 0;
}
static int tegra_dc_dp_set_assr(struct tegra_dp_priv *dp,
struct tegra_dc_sor_data *sor, int ena)
static int tegra_dc_dp_set_assr(struct tegra_dp_priv *priv,
struct udevice *sor, int ena)
{
int ret;
@ -719,7 +726,7 @@ static int tegra_dc_dp_set_assr(struct tegra_dp_priv *dp,
DP_MAIN_LINK_CHANNEL_CODING_SET_ASC_RESET_ENABLE :
DP_MAIN_LINK_CHANNEL_CODING_SET_ASC_RESET_DISABLE;
ret = tegra_dc_dp_dpcd_write(dp, DP_EDP_CONFIGURATION_SET,
ret = tegra_dc_dp_dpcd_write(priv, DP_EDP_CONFIGURATION_SET,
dpcd_data);
if (ret)
return ret;
@ -730,7 +737,7 @@ static int tegra_dc_dp_set_assr(struct tegra_dp_priv *dp,
}
static int tegra_dp_set_link_bandwidth(struct tegra_dp_priv *dp,
struct tegra_dc_sor_data *sor,
struct udevice *sor,
u8 link_bw)
{
tegra_dc_sor_set_link_bandwidth(sor, link_bw);
@ -741,7 +748,7 @@ static int tegra_dp_set_link_bandwidth(struct tegra_dp_priv *dp,
static int tegra_dp_set_lane_count(struct tegra_dp_priv *dp,
const struct tegra_dp_link_config *link_cfg,
struct tegra_dc_sor_data *sor)
struct udevice *sor)
{
u8 dpcd_data;
int ret;
@ -1002,7 +1009,7 @@ fail:
static int tegra_dp_lt_config(struct tegra_dp_priv *dp, u32 pe[4], u32 vs[4],
u32 pc[4], const struct tegra_dp_link_config *cfg)
{
struct tegra_dc_sor_data *sor = dp->sor;
struct udevice *sor = dp->sor;
u32 n_lanes = cfg->lane_count;
u8 pc_supported = cfg->tps3_supported;
u32 cnt;
@ -1186,7 +1193,7 @@ static int tegra_dc_dp_full_link_training(struct tegra_dp_priv *dp,
const struct display_timing *timing,
struct tegra_dp_link_config *cfg)
{
struct tegra_dc_sor_data *sor = dp->sor;
struct udevice *sor = dp->sor;
int err;
u32 pe[4], vs[4], pc[4];
@ -1229,7 +1236,7 @@ fail:
*/
static int tegra_dc_dp_fast_link_training(struct tegra_dp_priv *dp,
const struct tegra_dp_link_config *link_cfg,
struct tegra_dc_sor_data *sor)
struct udevice *sor)
{
u8 link_bw;
u8 lane_count;
@ -1301,7 +1308,7 @@ static int tegra_dc_dp_fast_link_training(struct tegra_dp_priv *dp,
static int tegra_dp_do_link_training(struct tegra_dp_priv *dp,
struct tegra_dp_link_config *link_cfg,
const struct display_timing *timing,
struct tegra_dc_sor_data *sor)
struct udevice *sor)
{
u8 link_bw;
u8 lane_count;
@ -1344,7 +1351,7 @@ static int tegra_dp_do_link_training(struct tegra_dp_priv *dp,
static int tegra_dc_dp_explore_link_cfg(struct tegra_dp_priv *dp,
struct tegra_dp_link_config *link_cfg,
struct tegra_dc_sor_data *sor,
struct udevice *sor,
const struct display_timing *timing)
{
struct tegra_dp_link_config temp_cfg;
@ -1444,7 +1451,7 @@ static int tegra_dc_dp_check_sink(struct tegra_dp_priv *dp,
printf("DP: Out of sync after %d retries\n", max_retry);
return -EIO;
}
ret = tegra_dc_sor_detach(dp->sor);
ret = tegra_dc_sor_detach(dp->dc_dev, dp->sor);
if (ret)
return ret;
if (tegra_dc_dp_explore_link_cfg(dp, link_cfg, dp->sor,
@ -1454,7 +1461,7 @@ static int tegra_dc_dp_check_sink(struct tegra_dp_priv *dp,
}
tegra_dc_sor_set_power_state(dp->sor, 1);
tegra_dc_sor_attach(dp->sor, link_cfg, timing);
tegra_dc_sor_attach(dp->dc_dev, dp->sor, link_cfg, timing);
/* Increase delay_frame for next try in case the sink is
skipping more frames */
@ -1467,7 +1474,7 @@ int tegra_dp_enable(struct udevice *dev, int panel_bpp,
{
struct tegra_dp_priv *priv = dev_get_priv(dev);
struct tegra_dp_link_config slink_cfg, *link_cfg = &slink_cfg;
struct tegra_dc_sor_data *sor;
struct udevice *sor;
int data;
int retry;
int ret;
@ -1489,9 +1496,11 @@ int tegra_dp_enable(struct udevice *dev, int panel_bpp,
return -ENOLINK;
}
ret = tegra_dc_sor_init(&sor);
if (ret)
ret = uclass_first_device(UCLASS_VIDEO_BRIDGE, &sor);
if (ret || !sor) {
debug("dp: failed to find SOR device: ret=%d\n", ret);
return ret;
}
priv->sor = sor;
ret = tegra_dc_sor_enable_dp(sor, link_cfg);
if (ret)
@ -1531,7 +1540,7 @@ int tegra_dp_enable(struct udevice *dev, int panel_bpp,
}
tegra_dc_sor_set_power_state(sor, 1);
ret = tegra_dc_sor_attach(sor, link_cfg, timing);
ret = tegra_dc_sor_attach(priv->dc_dev, sor, link_cfg, timing);
if (ret && ret != -EEXIST)
return ret;
@ -1548,6 +1557,12 @@ int tegra_dp_enable(struct udevice *dev, int panel_bpp,
/* Power down the unused lanes to save power - a few hundred mW */
tegra_dc_sor_power_down_unused_lanes(sor, link_cfg);
ret = video_bridge_set_backlight(sor, 80);
if (ret) {
debug("dp: failed to set backlight\n");
return ret;
}
priv->enabled = true;
error_enable:
return 0;
@ -1583,10 +1598,14 @@ static int dp_tegra_probe(struct udevice *dev)
{
struct tegra_dp_plat *plat = dev_get_platdata(dev);
struct tegra_dp_priv *priv = dev_get_priv(dev);
struct display_plat *disp_uc_plat = dev_get_uclass_platdata(dev);
priv->regs = (struct dpaux_ctlr *)plat->base;
priv->enabled = false;
/* Remember the display controller that is sending us video */
priv->dc_dev = disp_uc_plat->src_dev;
return 0;
}

174
drivers/video/tegra124/sor.c
View file

@ -5,9 +5,12 @@
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <fdtdec.h>
#include <malloc.h>
#include <panel.h>
#include <video_bridge.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch-tegra/dc.h>
@ -37,6 +40,14 @@ DECLARE_GLOBAL_DATA_PTR;
#define APBDEV_PMC_IO_DPD2_STATUS_LVDS_OFF (0 << 25)
#define APBDEV_PMC_IO_DPD2_STATUS_LVDS_ON (1 << 25)
struct tegra_dc_sor_data {
void *base;
void *pmc_base;
u8 portnum; /* 0 or 1 */
int power_is_up;
struct udevice *panel;
};
static inline u32 tegra_sor_readl(struct tegra_dc_sor_data *sor, u32 reg)
{
return readl((u32 *)sor->base + reg);
@ -57,15 +68,19 @@ static inline void tegra_sor_write_field(struct tegra_dc_sor_data *sor,
tegra_sor_writel(sor, reg, reg_val);
}
void tegra_dp_disable_tx_pu(struct tegra_dc_sor_data *sor)
void tegra_dp_disable_tx_pu(struct udevice *dev)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
tegra_sor_write_field(sor, DP_PADCTL(sor->portnum),
DP_PADCTL_TX_PU_MASK, DP_PADCTL_TX_PU_DISABLE);
}
void tegra_dp_set_pe_vs_pc(struct tegra_dc_sor_data *sor, u32 mask, u32 pe_reg,
void tegra_dp_set_pe_vs_pc(struct udevice *dev, u32 mask, u32 pe_reg,
u32 vs_reg, u32 pc_reg, u8 pc_supported)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
tegra_sor_write_field(sor, PR(sor->portnum), mask, pe_reg);
tegra_sor_write_field(sor, DC(sor->portnum), mask, vs_reg);
if (pc_supported) {
@ -95,8 +110,9 @@ static int tegra_dc_sor_poll_register(struct tegra_dc_sor_data *sor, u32 reg,
return -ETIMEDOUT;
}
int tegra_dc_sor_set_power_state(struct tegra_dc_sor_data *sor, int pu_pd)
int tegra_dc_sor_set_power_state(struct udevice *dev, int pu_pd)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 reg_val;
u32 orig_val;
@ -123,10 +139,11 @@ int tegra_dc_sor_set_power_state(struct tegra_dc_sor_data *sor, int pu_pd)
return 0;
}
void tegra_dc_sor_set_dp_linkctl(struct tegra_dc_sor_data *sor, int ena,
void tegra_dc_sor_set_dp_linkctl(struct udevice *dev, int ena,
u8 training_pattern,
const struct tegra_dp_link_config *link_cfg)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 reg_val;
reg_val = tegra_sor_readl(sor, DP_LINKCTL(sor->portnum));
@ -194,9 +211,10 @@ static int tegra_dc_sor_enable_lane_sequencer(struct tegra_dc_sor_data *sor,
return 0;
}
static int tegra_dc_sor_power_dplanes(struct tegra_dc_sor_data *sor,
static int tegra_dc_sor_power_dplanes(struct udevice *dev,
u32 lane_count, int pu)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 reg_val;
reg_val = tegra_sor_readl(sor, DP_PADCTL(sor->portnum));
@ -218,15 +236,15 @@ static int tegra_dc_sor_power_dplanes(struct tegra_dc_sor_data *sor,
}
tegra_sor_writel(sor, DP_PADCTL(sor->portnum), reg_val);
tegra_dc_sor_set_lane_count(sor, lane_count);
tegra_dc_sor_set_lane_count(dev, lane_count);
}
return tegra_dc_sor_enable_lane_sequencer(sor, pu, 0);
}
void tegra_dc_sor_set_panel_power(struct tegra_dc_sor_data *sor,
int power_up)
void tegra_dc_sor_set_panel_power(struct udevice *dev, int power_up)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 reg_val;
reg_val = tegra_sor_readl(sor, DP_PADCTL(sor->portnum));
@ -255,14 +273,15 @@ static void tegra_dc_sor_config_pwm(struct tegra_dc_sor_data *sor, u32 pwm_div,
}
}
static void tegra_dc_sor_set_dp_mode(struct tegra_dc_sor_data *sor,
static void tegra_dc_sor_set_dp_mode(struct udevice *dev,
const struct tegra_dp_link_config *link_cfg)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 reg_val;
tegra_dc_sor_set_link_bandwidth(sor, link_cfg->link_bw);
tegra_dc_sor_set_link_bandwidth(dev, link_cfg->link_bw);
tegra_dc_sor_set_dp_linkctl(sor, 1, training_pattern_none, link_cfg);
tegra_dc_sor_set_dp_linkctl(dev, 1, training_pattern_none, link_cfg);
reg_val = tegra_sor_readl(sor, DP_CONFIG(sor->portnum));
reg_val &= ~DP_CONFIG_WATERMARK_MASK;
reg_val |= link_cfg->watermark;
@ -351,8 +370,9 @@ static int tegra_dc_sor_io_set_dpd(struct tegra_dc_sor_data *sor, int up)
return 0;
}
void tegra_dc_sor_set_internal_panel(struct tegra_dc_sor_data *sor, int is_int)
void tegra_dc_sor_set_internal_panel(struct udevice *dev, int is_int)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 reg_val;
reg_val = tegra_sor_readl(sor, DP_SPARE(sor->portnum));
@ -366,9 +386,10 @@ void tegra_dc_sor_set_internal_panel(struct tegra_dc_sor_data *sor, int is_int)
tegra_sor_writel(sor, DP_SPARE(sor->portnum), reg_val);
}
void tegra_dc_sor_read_link_config(struct tegra_dc_sor_data *sor, u8 *link_bw,
void tegra_dc_sor_read_link_config(struct udevice *dev, u8 *link_bw,
u8 *lane_count)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 reg_val;
reg_val = tegra_sor_readl(sor, CLK_CNTRL);
@ -395,15 +416,18 @@ void tegra_dc_sor_read_link_config(struct tegra_dc_sor_data *sor, u8 *link_bw,
}
}
void tegra_dc_sor_set_link_bandwidth(struct tegra_dc_sor_data *sor, u8 link_bw)
void tegra_dc_sor_set_link_bandwidth(struct udevice *dev, u8 link_bw)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
tegra_sor_write_field(sor, CLK_CNTRL,
CLK_CNTRL_DP_LINK_SPEED_MASK,
link_bw << CLK_CNTRL_DP_LINK_SPEED_SHIFT);
}
void tegra_dc_sor_set_lane_count(struct tegra_dc_sor_data *sor, u8 lane_count)
void tegra_dc_sor_set_lane_count(struct udevice *dev, u8 lane_count)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 reg_val;
reg_val = tegra_sor_readl(sor, DP_LINKCTL(sor->portnum));
@ -439,15 +463,16 @@ void tegra_dc_sor_set_lane_count(struct tegra_dc_sor_data *sor, u8 lane_count)
* 4 1 0 0 0 0 0 1
* 5 0 0 0 0 0 0 1
*/
static int tegra_dc_sor_power_up(struct tegra_dc_sor_data *sor, int is_lvds)
static int tegra_dc_sor_power_up(struct udevice *dev, int is_lvds)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
int ret;
if (sor->power_is_up)
return 0;
/* Set link bw */
tegra_dc_sor_set_link_bandwidth(sor, is_lvds ?
tegra_dc_sor_set_link_bandwidth(dev, is_lvds ?
CLK_CNTRL_DP_LINK_SPEED_LVDS :
CLK_CNTRL_DP_LINK_SPEED_G1_62);
@ -655,9 +680,10 @@ static void tegra_dc_sor_enable_dc(struct dc_ctlr *disp_ctrl)
writel(reg_val, &disp_ctrl->cmd.state_access);
}
int tegra_dc_sor_enable_dp(struct tegra_dc_sor_data *sor,
int tegra_dc_sor_enable_dp(struct udevice *dev,
const struct tegra_dp_link_config *link_cfg)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
int ret;
tegra_sor_write_field(sor, CLK_CNTRL,
@ -701,7 +727,7 @@ int tegra_dc_sor_enable_dp(struct tegra_dc_sor_data *sor,
PLL2_AUX2_OVERRIDE_POWERDOWN |
PLL2_AUX7_PORT_POWERDOWN_DISABLE);
ret = tegra_dc_sor_power_up(sor, 0);
ret = tegra_dc_sor_power_up(dev, 0);
if (ret) {
debug("DP failed to power up\n");
return ret;
@ -711,18 +737,19 @@ int tegra_dc_sor_enable_dp(struct tegra_dc_sor_data *sor,
clock_sor_enable_edp_clock();
/* Power up lanes */
tegra_dc_sor_power_dplanes(sor, link_cfg->lane_count, 1);
tegra_dc_sor_power_dplanes(dev, link_cfg->lane_count, 1);
tegra_dc_sor_set_dp_mode(sor, link_cfg);
tegra_dc_sor_set_dp_mode(dev, link_cfg);
debug("%s ret\n", __func__);
return 0;
}
int tegra_dc_sor_attach(struct tegra_dc_sor_data *sor,
int tegra_dc_sor_attach(struct udevice *dc_dev, struct udevice *dev,
const struct tegra_dp_link_config *link_cfg,
const struct display_timing *timing)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
const void *blob = gd->fdt_blob;
struct dc_ctlr *disp_ctrl;
u32 reg_val;
@ -730,9 +757,7 @@ int tegra_dc_sor_attach(struct tegra_dc_sor_data *sor,
/* Use the first display controller */
debug("%s\n", __func__);
node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_DC);
if (node < 0)
return -ENOENT;
node = dc_dev->of_offset;
disp_ctrl = (struct dc_ctlr *)fdtdec_get_addr(blob, node, "reg");
tegra_dc_sor_enable_dc(disp_ctrl);
@ -798,9 +823,11 @@ int tegra_dc_sor_attach(struct tegra_dc_sor_data *sor,
return 0;
}
void tegra_dc_sor_set_lane_parm(struct tegra_dc_sor_data *sor,
void tegra_dc_sor_set_lane_parm(struct udevice *dev,
const struct tegra_dp_link_config *link_cfg)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
tegra_sor_writel(sor, LANE_DRIVE_CURRENT(sor->portnum),
link_cfg->drive_current);
tegra_sor_writel(sor, PR(sor->portnum),
@ -809,8 +836,8 @@ void tegra_dc_sor_set_lane_parm(struct tegra_dc_sor_data *sor,
link_cfg->postcursor);
tegra_sor_writel(sor, LVDS, 0);
tegra_dc_sor_set_link_bandwidth(sor, link_cfg->link_bw);
tegra_dc_sor_set_lane_count(sor, link_cfg->lane_count);
tegra_dc_sor_set_link_bandwidth(dev, link_cfg->link_bw);
tegra_dc_sor_set_lane_count(dev, link_cfg->lane_count);
tegra_sor_write_field(sor, DP_PADCTL(sor->portnum),
DP_PADCTL_TX_PU_ENABLE |
@ -825,9 +852,10 @@ void tegra_dc_sor_set_lane_parm(struct tegra_dc_sor_data *sor,
tegra_sor_write_field(sor, DP_PADCTL(sor->portnum), 0xf0, 0x0);
}
int tegra_dc_sor_set_voltage_swing(struct tegra_dc_sor_data *sor,
int tegra_dc_sor_set_voltage_swing(struct udevice *dev,
const struct tegra_dp_link_config *link_cfg)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 drive_current = 0;
u32 pre_emphasis = 0;
@ -851,9 +879,10 @@ int tegra_dc_sor_set_voltage_swing(struct tegra_dc_sor_data *sor,
return 0;
}
void tegra_dc_sor_power_down_unused_lanes(struct tegra_dc_sor_data *sor,
void tegra_dc_sor_power_down_unused_lanes(struct udevice *dev,
const struct tegra_dp_link_config *link_cfg)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 pad_ctrl = 0;
int err = 0;
@ -891,9 +920,10 @@ void tegra_dc_sor_power_down_unused_lanes(struct tegra_dc_sor_data *sor,
}
}
int tegra_sor_precharge_lanes(struct tegra_dc_sor_data *sor,
int tegra_sor_precharge_lanes(struct udevice *dev,
const struct tegra_dp_link_config *cfg)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
u32 val = 0;
switch (cfg->lane_count) {
@ -931,8 +961,9 @@ static void tegra_dc_sor_enable_sor(struct dc_ctlr *disp_ctrl, bool enable)
writel(reg_val, &disp_ctrl->disp.disp_win_opt);
}
int tegra_dc_sor_detach(struct tegra_dc_sor_data *sor)
int tegra_dc_sor_detach(struct udevice *dc_dev, struct udevice *dev)
{
struct tegra_dc_sor_data *sor = dev_get_priv(dev);
int dc_reg_ctx[DC_REG_SAVE_SPACE];
const void *blob = gd->fdt_blob;
struct dc_ctlr *disp_ctrl;
@ -942,11 +973,7 @@ int tegra_dc_sor_detach(struct tegra_dc_sor_data *sor)
debug("%s\n", __func__);
/* Use the first display controller */
node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_DC);
if (node < 0) {
ret = -ENOENT;
goto err;
}
node = dc_dev->of_offset;
disp_ctrl = (struct dc_ctlr *)fdtdec_get_addr(blob, node, "reg");
/* Sleep mode */
@ -997,28 +1024,61 @@ err:
return ret;
}
int tegra_dc_sor_init(struct tegra_dc_sor_data **sorp)
static int tegra_sor_set_backlight(struct udevice *dev, int percent)
{
const void *blob = gd->fdt_blob;
struct tegra_dc_sor_data *sor;
int node;
struct tegra_dc_sor_data *priv = dev_get_priv(dev);
int ret;
node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_SOR);
if (node < 0)
return -ENOENT;
sor = calloc(1, sizeof(*sor));
if (!sor)
return -ENOMEM;
sor->base = (void *)fdtdec_get_addr(blob, node, "reg");
node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_PMC);
if (node < 0)
return -ENOENT;
sor->pmc_base = (void *)fdtdec_get_addr(blob, node, "reg");
sor->power_is_up = 0;
sor->portnum = 0;
*sorp = sor;
ret = panel_enable_backlight(priv->panel);
if (ret) {
debug("sor: Cannot enable panel backlight\n");
return ret;
}
return 0;
}
static int tegra_sor_ofdata_to_platdata(struct udevice *dev)
{
struct tegra_dc_sor_data *priv = dev_get_priv(dev);
const void *blob = gd->fdt_blob;
int node;
int ret;
priv->base = (void *)fdtdec_get_addr(blob, dev->of_offset, "reg");
node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_PMC);
if (node < 0) {
debug("%s: Cannot find PMC\n", __func__);
return -ENOENT;
}
priv->pmc_base = (void *)fdtdec_get_addr(blob, node, "reg");
ret = uclass_get_device_by_phandle(UCLASS_PANEL, dev, "nvidia,panel",
&priv->panel);
if (ret) {
debug("%s: Cannot find panel for '%s' (ret=%d)\n", __func__,
dev->name, ret);
return ret;
}
return 0;
}
static const struct video_bridge_ops tegra_sor_ops = {
.set_backlight = tegra_sor_set_backlight,
};
static const struct udevice_id tegra_sor_ids[] = {
{ .compatible = "nvidia,tegra124-sor" },
{ }
};
U_BOOT_DRIVER(sor_tegra) = {
.name = "sor_tegra",
.id = UCLASS_VIDEO_BRIDGE,
.of_match = tegra_sor_ids,
.ofdata_to_platdata = tegra_sor_ofdata_to_platdata,
.ops = &tegra_sor_ops,
.priv_auto_alloc_size = sizeof(struct tegra_dc_sor_data),
};

45
drivers/video/tegra124/sor.h
View file

@ -873,44 +873,37 @@ struct tegra_dp_link_config {
u8 tps3_supported;
};
struct tegra_dc_sor_data {
void *base;
void *pmc_base;
u8 portnum; /* 0 or 1 */
int power_is_up;
};
#define TEGRA_SOR_TIMEOUT_MS 1000
#define TEGRA_SOR_ATTACH_TIMEOUT_MS 1000
int tegra_dc_sor_enable_dp(struct tegra_dc_sor_data *sor,
int tegra_dc_sor_enable_dp(struct udevice *sor,
const struct tegra_dp_link_config *link_cfg);
int tegra_dc_sor_set_power_state(struct tegra_dc_sor_data *sor, int pu_pd);
void tegra_dc_sor_set_dp_linkctl(struct tegra_dc_sor_data *sor, int ena,
int tegra_dc_sor_set_power_state(struct udevice *sor, int pu_pd);
void tegra_dc_sor_set_dp_linkctl(struct udevice *dev, int ena,
u8 training_pattern, const struct tegra_dp_link_config *link_cfg);
void tegra_dc_sor_set_link_bandwidth(struct tegra_dc_sor_data *sor, u8 link_bw);
void tegra_dc_sor_set_lane_count(struct tegra_dc_sor_data *sor, u8 lane_count);
void tegra_dc_sor_set_panel_power(struct tegra_dc_sor_data *sor,
void tegra_dc_sor_set_link_bandwidth(struct udevice *dev, u8 link_bw);
void tegra_dc_sor_set_lane_count(struct udevice *dev, u8 lane_count);
void tegra_dc_sor_set_panel_power(struct udevice *sor,
int power_up);
void tegra_dc_sor_set_internal_panel(struct tegra_dc_sor_data *sor, int is_int);
void tegra_dc_sor_read_link_config(struct tegra_dc_sor_data *sor, u8 *link_bw,
void tegra_dc_sor_set_internal_panel(struct udevice *dev, int is_int);
void tegra_dc_sor_read_link_config(struct udevice *dev, u8 *link_bw,
u8 *lane_count);
void tegra_dc_sor_set_lane_parm(struct tegra_dc_sor_data *sor,
void tegra_dc_sor_set_lane_parm(struct udevice *dev,
const struct tegra_dp_link_config *link_cfg);
void tegra_dc_sor_power_down_unused_lanes(struct udevice *sor,
const struct tegra_dp_link_config *link_cfg);
void tegra_dc_sor_power_down_unused_lanes(struct tegra_dc_sor_data *sor,
const struct tegra_dp_link_config *link_cfg);
int tegra_dc_sor_set_voltage_swing(struct tegra_dc_sor_data *sor,
int tegra_dc_sor_set_voltage_swing(struct udevice *sor,
const struct tegra_dp_link_config *link_cfg);
int tegra_sor_precharge_lanes(struct tegra_dc_sor_data *sor,
int tegra_sor_precharge_lanes(struct udevice *dev,
const struct tegra_dp_link_config *cfg);
void tegra_dp_disable_tx_pu(struct tegra_dc_sor_data *sor);
void tegra_dp_set_pe_vs_pc(struct tegra_dc_sor_data *sor, u32 mask,
u32 pe_reg, u32 vs_reg, u32 pc_reg, u8 pc_supported);
void tegra_dp_disable_tx_pu(struct udevice *sor);
void tegra_dp_set_pe_vs_pc(struct udevice *dev, u32 mask, u32 pe_reg,
u32 vs_reg, u32 pc_reg, u8 pc_supported);
int tegra_dc_sor_attach(struct tegra_dc_sor_data *sor,
int tegra_dc_sor_attach(struct udevice *dc_dev, struct udevice *sor,
const struct tegra_dp_link_config *link_cfg,
const struct display_timing *timing);
int tegra_dc_sor_detach(struct tegra_dc_sor_data *sor);
int tegra_dc_sor_detach(struct udevice *dc_dev, struct udevice *sor);
void tegra_dc_sor_disable_win_short_raster(struct dc_ctlr *disp_ctrl,
int *dc_reg_ctx);
@ -918,5 +911,5 @@ int tegra_dc_sor_general_act(struct dc_ctlr *disp_ctrl);
void tegra_dc_sor_restore_win_and_raster(struct dc_ctlr *disp_ctrl,
int *dc_reg_ctx);
int tegra_dc_sor_init(struct tegra_dc_sor_data **sorp);
int tegra_dc_sor_init(struct udevice **sorp);
#endif

2
include/configs/nyan-big.h
View file

@ -38,10 +38,8 @@
#define CONFIG_ENV_OFFSET (-CONFIG_ENV_SIZE)
/* LCD support */
#define CONFIG_LCD
#define CONFIG_PWM_TEGRA
#define CONFIG_AS3722_POWER
#define LCD_BPP LCD_COLOR16
#define CONFIG_SYS_WHITE_ON_BLACK
#define CONFIG_CMD_BMP

1
include/fdtdec.h
View file

@ -120,7 +120,6 @@ enum fdt_compat_id {
COMPAT_NVIDIA_TEGRA20_EMC_TABLE, /* Tegra20 memory timing table */
COMPAT_NVIDIA_TEGRA20_NAND, /* Tegra2 NAND controller */
COMPAT_NVIDIA_TEGRA20_PWM, /* Tegra 2 PWM controller */
COMPAT_NVIDIA_TEGRA124_DC, /* Tegra 124 Display controller */
COMPAT_NVIDIA_TEGRA124_SOR, /* Tegra 124 Serial Output Resource */
COMPAT_NVIDIA_TEGRA124_PMC, /* Tegra 124 power mgmt controller */
COMPAT_NVIDIA_TEGRA20_DC, /* Tegra 2 Display controller */

1
lib/fdtdec.c
View file

@ -27,7 +27,6 @@ static const char * const compat_names[COMPAT_COUNT] = {
COMPAT(NVIDIA_TEGRA20_EMC_TABLE, "nvidia,tegra20-emc-table"),
COMPAT(NVIDIA_TEGRA20_NAND, "nvidia,tegra20-nand"),
COMPAT(NVIDIA_TEGRA20_PWM, "nvidia,tegra20-pwm"),
COMPAT(NVIDIA_TEGRA124_DC, "nvidia,tegra124-dc"),
COMPAT(NVIDIA_TEGRA124_SOR, "nvidia,tegra124-sor"),
COMPAT(NVIDIA_TEGRA124_PMC, "nvidia,tegra124-pmc"),
COMPAT(NVIDIA_TEGRA20_DC, "nvidia,tegra20-dc"),