* Author: InKi Dae <inki.dae@samsung.com>
* Author: Donghwa Lee <dh09.lee@samsung.com>
*
- * 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; either version 2 of
- * the License, or (at your option) any later version.
- *
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <asm/io.h>
#include <lcd.h>
#include <div64.h>
+#include <fdtdec.h>
+#include <libfdt.h>
#include <asm/arch/clk.h>
#include <asm/arch/clock.h>
#include <asm/arch/cpu.h>
#include "exynos_fb.h"
+DECLARE_GLOBAL_DATA_PTR;
+
static unsigned long *lcd_base_addr;
static vidinfo_t *pvid;
+static struct exynos_fb *fimd_ctrl;
void exynos_fimd_lcd_init_mem(u_long screen_base, u_long fb_size,
u_long palette_size)
static void exynos_fimd_set_dualrgb(unsigned int enabled)
{
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
unsigned int cfg = 0;
if (enabled) {
writel(cfg, &fimd_ctrl->dualrgb);
}
+static void exynos_fimd_set_dp_clkcon(unsigned int enabled)
+{
+ unsigned int cfg = 0;
+
+ if (enabled)
+ cfg = EXYNOS_DP_CLK_ENABLE;
+
+ writel(cfg, &fimd_ctrl->dp_mie_clkcon);
+}
+
static void exynos_fimd_set_par(unsigned int win_id)
{
unsigned int cfg = 0;
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
/* set window control */
cfg = readl((unsigned int)&fimd_ctrl->wincon0 +
/* DATAPATH is DMA */
cfg |= EXYNOS_WINCON_DATAPATH_DMA;
- /* bpp is 32 */
- cfg |= EXYNOS_WINCON_WSWP_ENABLE;
+ cfg |= EXYNOS_WINCON_HAWSWP_ENABLE;
/* dma burst is 16 */
cfg |= EXYNOS_WINCON_BURSTLEN_16WORD;
- /* pixel format is unpacked RGB888 */
- cfg |= EXYNOS_WINCON_BPPMODE_24BPP_888;
+ switch (pvid->vl_bpix) {
+ case 4:
+ cfg |= EXYNOS_WINCON_BPPMODE_16BPP_565;
+ break;
+ default:
+ cfg |= EXYNOS_WINCON_BPPMODE_24BPP_888;
+ break;
+ }
writel(cfg, (unsigned int)&fimd_ctrl->wincon0 +
EXYNOS_WINCON(win_id));
EXYNOS_VIDOSD(win_id));
cfg = EXYNOS_VIDOSD_RIGHT_X(pvid->vl_col - 1) |
- EXYNOS_VIDOSD_BOTTOM_Y(pvid->vl_row - 1);
+ EXYNOS_VIDOSD_BOTTOM_Y(pvid->vl_row - 1) |
+ EXYNOS_VIDOSD_RIGHT_X_E(1) |
+ EXYNOS_VIDOSD_BOTTOM_Y_E(0);
+
writel(cfg, (unsigned int)&fimd_ctrl->vidosd0b +
EXYNOS_VIDOSD(win_id));
static void exynos_fimd_set_buffer_address(unsigned int win_id)
{
unsigned long start_addr, end_addr;
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
start_addr = (unsigned long)lcd_base_addr;
end_addr = start_addr + ((pvid->vl_col * (NBITS(pvid->vl_bpix) / 8)) *
unsigned int cfg = 0, div = 0, remainder, remainder_div;
unsigned long pixel_clock;
unsigned long long src_clock;
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
if (pvid->dual_lcd_enabled) {
pixel_clock = pvid->vl_freq *
cfg |= (EXYNOS_VIDCON0_CLKSEL_SCLK | EXYNOS_VIDCON0_CLKVALUP_ALWAYS |
EXYNOS_VIDCON0_VCLKEN_NORMAL | EXYNOS_VIDCON0_CLKDIR_DIVIDED);
- if (pixel_clock > MAX_CLOCK)
- pixel_clock = MAX_CLOCK;
-
src_clock = (unsigned long long) get_lcd_clk();
/* get quotient and remainder. */
void exynos_set_trigger(void)
{
unsigned int cfg = 0;
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
cfg = readl(&fimd_ctrl->trigcon);
{
unsigned int cfg = 0;
int status;
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
cfg = readl(&fimd_ctrl->trigcon);
static void exynos_fimd_lcd_on(void)
{
unsigned int cfg = 0;
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
/* display on */
cfg = readl(&fimd_ctrl->vidcon0);
static void exynos_fimd_window_on(unsigned int win_id)
{
unsigned int cfg = 0;
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
/* enable window */
cfg = readl((unsigned int)&fimd_ctrl->wincon0 +
void exynos_fimd_lcd_off(void)
{
unsigned int cfg = 0;
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
cfg = readl(&fimd_ctrl->vidcon0);
cfg &= (EXYNOS_VIDCON0_ENVID_DISABLE | EXYNOS_VIDCON0_ENVID_F_DISABLE);
void exynos_fimd_window_off(unsigned int win_id)
{
unsigned int cfg = 0;
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
cfg = readl((unsigned int)&fimd_ctrl->wincon0 +
EXYNOS_WINCON(win_id));
writel(cfg, &fimd_ctrl->winshmap);
}
+#ifdef CONFIG_OF_CONTROL
+/*
+* The reset value for FIMD SYSMMU register MMU_CTRL is 3
+* on Exynos5420 and newer versions.
+* This means FIMD SYSMMU is on by default on Exynos5420
+* and newer versions.
+* Since in u-boot we don't use SYSMMU, we should disable
+* those FIMD SYSMMU.
+* Note that there are 2 SYSMMU for FIMD: m0 and m1.
+* m0 handles windows 0 and 4, and m1 handles windows 1, 2 and 3.
+* We disable both of them here.
+*/
+void exynos_fimd_disable_sysmmu(void)
+{
+ u32 *sysmmufimd;
+ unsigned int node;
+ int node_list[2];
+ int count;
+ int i;
+
+ count = fdtdec_find_aliases_for_id(gd->fdt_blob, "fimd",
+ COMPAT_SAMSUNG_EXYNOS_SYSMMU, node_list, 2);
+ for (i = 0; i < count; i++) {
+ node = node_list[i];
+ if (node <= 0) {
+ debug("Can't get device node for fimd sysmmu\n");
+ return;
+ }
+
+ sysmmufimd = (u32 *)fdtdec_get_addr(gd->fdt_blob, node, "reg");
+ if (!sysmmufimd) {
+ debug("Can't get base address for sysmmu fimdm0");
+ return;
+ }
+
+ writel(0x0, sysmmufimd);
+ }
+}
+#endif
+
void exynos_fimd_lcd_init(vidinfo_t *vid)
{
unsigned int cfg = 0, rgb_mode;
- struct exynos4_fb *fimd_ctrl =
- (struct exynos4_fb *)samsung_get_base_fimd();
+ unsigned int offset;
+#ifdef CONFIG_OF_CONTROL
+ unsigned int node;
+
+ node = fdtdec_next_compatible(gd->fdt_blob,
+ 0, COMPAT_SAMSUNG_EXYNOS_FIMD);
+ if (node <= 0)
+ debug("exynos_fb: Can't get device node for fimd\n");
+
+ fimd_ctrl = (struct exynos_fb *)fdtdec_get_addr(gd->fdt_blob,
+ node, "reg");
+ if (fimd_ctrl == NULL)
+ debug("Can't get the FIMD base address\n");
+
+ if (fdtdec_get_bool(gd->fdt_blob, node, "samsung,disable-sysmmu"))
+ exynos_fimd_disable_sysmmu();
+
+#else
+ fimd_ctrl = (struct exynos_fb *)samsung_get_base_fimd();
+#endif
+
+ offset = exynos_fimd_get_base_offset();
/* store panel info to global variable */
pvid = vid;
if (!pvid->vl_dp)
cfg |= EXYNOS_VIDCON1_IVDEN_INVERT;
- writel(cfg, &fimd_ctrl->vidcon1);
+ writel(cfg, (unsigned int)&fimd_ctrl->vidcon1 + offset);
/* set timing */
cfg = EXYNOS_VIDTCON0_VFPD(pvid->vl_vfpd - 1);
cfg |= EXYNOS_VIDTCON0_VBPD(pvid->vl_vbpd - 1);
cfg |= EXYNOS_VIDTCON0_VSPW(pvid->vl_vspw - 1);
- writel(cfg, &fimd_ctrl->vidtcon0);
+ writel(cfg, (unsigned int)&fimd_ctrl->vidtcon0 + offset);
cfg = EXYNOS_VIDTCON1_HFPD(pvid->vl_hfpd - 1);
cfg |= EXYNOS_VIDTCON1_HBPD(pvid->vl_hbpd - 1);
cfg |= EXYNOS_VIDTCON1_HSPW(pvid->vl_hspw - 1);
- writel(cfg, &fimd_ctrl->vidtcon1);
+ writel(cfg, (unsigned int)&fimd_ctrl->vidtcon1 + offset);
/* set lcd size */
- cfg = EXYNOS_VIDTCON2_HOZVAL(pvid->vl_col - 1);
- cfg |= EXYNOS_VIDTCON2_LINEVAL(pvid->vl_row - 1);
+ cfg = EXYNOS_VIDTCON2_HOZVAL(pvid->vl_col - 1) |
+ EXYNOS_VIDTCON2_LINEVAL(pvid->vl_row - 1) |
+ EXYNOS_VIDTCON2_HOZVAL_E(pvid->vl_col - 1) |
+ EXYNOS_VIDTCON2_LINEVAL_E(pvid->vl_row - 1);
- writel(cfg, &fimd_ctrl->vidtcon2);
+ writel(cfg, (unsigned int)&fimd_ctrl->vidtcon2 + offset);
}
/* set display mode */
exynos_fimd_set_buffer_address(pvid->win_id);
/* set buffer size */
- cfg = EXYNOS_VIDADDR_PAGEWIDTH(pvid->vl_col * NBITS(pvid->vl_bpix) / 8);
+ cfg = EXYNOS_VIDADDR_PAGEWIDTH(pvid->vl_col * NBITS(pvid->vl_bpix) / 8) |
+ EXYNOS_VIDADDR_PAGEWIDTH_E(pvid->vl_col * NBITS(pvid->vl_bpix) / 8) |
+ EXYNOS_VIDADDR_OFFSIZE(0) |
+ EXYNOS_VIDADDR_OFFSIZE_E(0);
+
writel(cfg, (unsigned int)&fimd_ctrl->vidw00add2 +
EXYNOS_BUFFER_SIZE(pvid->win_id));
/* window on */
exynos_fimd_window_on(pvid->win_id);
+
+ exynos_fimd_set_dp_clkcon(pvid->dp_enabled);
}
unsigned long exynos_fimd_calc_fbsize(void)
projects / karo-tx-uboot.git / blobdiff