+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2009
- * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
- * Copyright (C) 2011
- * HALE electronic GmbH, <helmut.raiger@hale.at>
- */
-#include <common.h>
-#include <env.h>
-#include <log.h>
-#include <malloc.h>
-#include <video_fb.h>
-#include <linux/delay.h>
-
-#include <asm/arch/imx-regs.h>
-#include <asm/arch/clock.h>
-#include <linux/errno.h>
-#include <asm/io.h>
-
-#include "videomodes.h"
-
-/* this might need panel specific set-up as-well */
-#define IF_CONF 0
-
-/* -------------- controller specific stuff -------------- */
-
-/* IPU DMA Controller channel definitions. */
-enum ipu_channel {
- IDMAC_IC_0 = 0, /* IC (encoding task) to memory */
- IDMAC_IC_1 = 1, /* IC (viewfinder task) to memory */
- IDMAC_ADC_0 = 1,
- IDMAC_IC_2 = 2,
- IDMAC_ADC_1 = 2,
- IDMAC_IC_3 = 3,
- IDMAC_IC_4 = 4,
- IDMAC_IC_5 = 5,
- IDMAC_IC_6 = 6,
- IDMAC_IC_7 = 7, /* IC (sensor data) to memory */
- IDMAC_IC_8 = 8,
- IDMAC_IC_9 = 9,
- IDMAC_IC_10 = 10,
- IDMAC_IC_11 = 11,
- IDMAC_IC_12 = 12,
- IDMAC_IC_13 = 13,
- IDMAC_SDC_0 = 14, /* Background synchronous display data */
- IDMAC_SDC_1 = 15, /* Foreground data (overlay) */
- IDMAC_SDC_2 = 16,
- IDMAC_SDC_3 = 17,
- IDMAC_ADC_2 = 18,
- IDMAC_ADC_3 = 19,
- IDMAC_ADC_4 = 20,
- IDMAC_ADC_5 = 21,
- IDMAC_ADC_6 = 22,
- IDMAC_ADC_7 = 23,
- IDMAC_PF_0 = 24,
- IDMAC_PF_1 = 25,
- IDMAC_PF_2 = 26,
- IDMAC_PF_3 = 27,
- IDMAC_PF_4 = 28,
- IDMAC_PF_5 = 29,
- IDMAC_PF_6 = 30,
- IDMAC_PF_7 = 31,
-};
-
-/* More formats can be copied from the Linux driver if needed */
-enum pixel_fmt {
- /* 2 bytes */
- IPU_PIX_FMT_RGB565,
- IPU_PIX_FMT_RGB666,
- IPU_PIX_FMT_BGR666,
- /* 3 bytes */
- IPU_PIX_FMT_RGB24,
-};
-
-struct pixel_fmt_cfg {
- u32 b0;
- u32 b1;
- u32 b2;
- u32 acc;
-};
-
-static struct pixel_fmt_cfg fmt_cfg[] = {
- [IPU_PIX_FMT_RGB24] = {
- 0x1600AAAA, 0x00E05555, 0x00070000, 3,
- },
- [IPU_PIX_FMT_RGB666] = {
- 0x0005000F, 0x000B000F, 0x0011000F, 1,
- },
- [IPU_PIX_FMT_BGR666] = {
- 0x0011000F, 0x000B000F, 0x0005000F, 1,
- },
- [IPU_PIX_FMT_RGB565] = {
- 0x0004003F, 0x000A000F, 0x000F003F, 1,
- }
-};
-
-enum ipu_panel {
- IPU_PANEL_SHARP_TFT,
- IPU_PANEL_TFT,
-};
-
-/* IPU Common registers */
-/* IPU_CONF and its bits already defined in imx-regs.h */
-#define IPU_CHA_BUF0_RDY (0x04 + IPU_BASE)
-#define IPU_CHA_BUF1_RDY (0x08 + IPU_BASE)
-#define IPU_CHA_DB_MODE_SEL (0x0C + IPU_BASE)
-#define IPU_CHA_CUR_BUF (0x10 + IPU_BASE)
-#define IPU_FS_PROC_FLOW (0x14 + IPU_BASE)
-#define IPU_FS_DISP_FLOW (0x18 + IPU_BASE)
-#define IPU_TASKS_STAT (0x1C + IPU_BASE)
-#define IPU_IMA_ADDR (0x20 + IPU_BASE)
-#define IPU_IMA_DATA (0x24 + IPU_BASE)
-#define IPU_INT_CTRL_1 (0x28 + IPU_BASE)
-#define IPU_INT_CTRL_2 (0x2C + IPU_BASE)
-#define IPU_INT_CTRL_3 (0x30 + IPU_BASE)
-#define IPU_INT_CTRL_4 (0x34 + IPU_BASE)
-#define IPU_INT_CTRL_5 (0x38 + IPU_BASE)
-#define IPU_INT_STAT_1 (0x3C + IPU_BASE)
-#define IPU_INT_STAT_2 (0x40 + IPU_BASE)
-#define IPU_INT_STAT_3 (0x44 + IPU_BASE)
-#define IPU_INT_STAT_4 (0x48 + IPU_BASE)
-#define IPU_INT_STAT_5 (0x4C + IPU_BASE)
-#define IPU_BRK_CTRL_1 (0x50 + IPU_BASE)
-#define IPU_BRK_CTRL_2 (0x54 + IPU_BASE)
-#define IPU_BRK_STAT (0x58 + IPU_BASE)
-#define IPU_DIAGB_CTRL (0x5C + IPU_BASE)
-
-/* Image Converter Registers */
-#define IC_CONF (0x88 + IPU_BASE)
-#define IC_PRP_ENC_RSC (0x8C + IPU_BASE)
-#define IC_PRP_VF_RSC (0x90 + IPU_BASE)
-#define IC_PP_RSC (0x94 + IPU_BASE)
-#define IC_CMBP_1 (0x98 + IPU_BASE)
-#define IC_CMBP_2 (0x9C + IPU_BASE)
-#define PF_CONF (0xA0 + IPU_BASE)
-#define IDMAC_CONF (0xA4 + IPU_BASE)
-#define IDMAC_CHA_EN (0xA8 + IPU_BASE)
-#define IDMAC_CHA_PRI (0xAC + IPU_BASE)
-#define IDMAC_CHA_BUSY (0xB0 + IPU_BASE)
-
-/* Image Converter Register bits */
-#define IC_CONF_PRPENC_EN 0x00000001
-#define IC_CONF_PRPENC_CSC1 0x00000002
-#define IC_CONF_PRPENC_ROT_EN 0x00000004
-#define IC_CONF_PRPVF_EN 0x00000100
-#define IC_CONF_PRPVF_CSC1 0x00000200
-#define IC_CONF_PRPVF_CSC2 0x00000400
-#define IC_CONF_PRPVF_CMB 0x00000800
-#define IC_CONF_PRPVF_ROT_EN 0x00001000
-#define IC_CONF_PP_EN 0x00010000
-#define IC_CONF_PP_CSC1 0x00020000
-#define IC_CONF_PP_CSC2 0x00040000
-#define IC_CONF_PP_CMB 0x00080000
-#define IC_CONF_PP_ROT_EN 0x00100000
-#define IC_CONF_IC_GLB_LOC_A 0x10000000
-#define IC_CONF_KEY_COLOR_EN 0x20000000
-#define IC_CONF_RWS_EN 0x40000000
-#define IC_CONF_CSI_MEM_WR_EN 0x80000000
-
-/* SDC Registers */
-#define SDC_COM_CONF (0xB4 + IPU_BASE)
-#define SDC_GW_CTRL (0xB8 + IPU_BASE)
-#define SDC_FG_POS (0xBC + IPU_BASE)
-#define SDC_BG_POS (0xC0 + IPU_BASE)
-#define SDC_CUR_POS (0xC4 + IPU_BASE)
-#define SDC_PWM_CTRL (0xC8 + IPU_BASE)
-#define SDC_CUR_MAP (0xCC + IPU_BASE)
-#define SDC_HOR_CONF (0xD0 + IPU_BASE)
-#define SDC_VER_CONF (0xD4 + IPU_BASE)
-#define SDC_SHARP_CONF_1 (0xD8 + IPU_BASE)
-#define SDC_SHARP_CONF_2 (0xDC + IPU_BASE)
-
-/* Register bits */
-#define SDC_COM_TFT_COLOR 0x00000001UL
-#define SDC_COM_FG_EN 0x00000010UL
-#define SDC_COM_GWSEL 0x00000020UL
-#define SDC_COM_GLB_A 0x00000040UL
-#define SDC_COM_KEY_COLOR_G 0x00000080UL
-#define SDC_COM_BG_EN 0x00000200UL
-#define SDC_COM_SHARP 0x00001000UL
-
-#define SDC_V_SYNC_WIDTH_L 0x00000001UL
-
-/* Display Interface registers */
-#define DI_DISP_IF_CONF (0x0124 + IPU_BASE)
-#define DI_DISP_SIG_POL (0x0128 + IPU_BASE)
-#define DI_SER_DISP1_CONF (0x012C + IPU_BASE)
-#define DI_SER_DISP2_CONF (0x0130 + IPU_BASE)
-#define DI_HSP_CLK_PER (0x0134 + IPU_BASE)
-#define DI_DISP0_TIME_CONF_1 (0x0138 + IPU_BASE)
-#define DI_DISP0_TIME_CONF_2 (0x013C + IPU_BASE)
-#define DI_DISP0_TIME_CONF_3 (0x0140 + IPU_BASE)
-#define DI_DISP1_TIME_CONF_1 (0x0144 + IPU_BASE)
-#define DI_DISP1_TIME_CONF_2 (0x0148 + IPU_BASE)
-#define DI_DISP1_TIME_CONF_3 (0x014C + IPU_BASE)
-#define DI_DISP2_TIME_CONF_1 (0x0150 + IPU_BASE)
-#define DI_DISP2_TIME_CONF_2 (0x0154 + IPU_BASE)
-#define DI_DISP2_TIME_CONF_3 (0x0158 + IPU_BASE)
-#define DI_DISP3_TIME_CONF (0x015C + IPU_BASE)
-#define DI_DISP0_DB0_MAP (0x0160 + IPU_BASE)
-#define DI_DISP0_DB1_MAP (0x0164 + IPU_BASE)
-#define DI_DISP0_DB2_MAP (0x0168 + IPU_BASE)
-#define DI_DISP0_CB0_MAP (0x016C + IPU_BASE)
-#define DI_DISP0_CB1_MAP (0x0170 + IPU_BASE)
-#define DI_DISP0_CB2_MAP (0x0174 + IPU_BASE)
-#define DI_DISP1_DB0_MAP (0x0178 + IPU_BASE)
-#define DI_DISP1_DB1_MAP (0x017C + IPU_BASE)
-#define DI_DISP1_DB2_MAP (0x0180 + IPU_BASE)
-#define DI_DISP1_CB0_MAP (0x0184 + IPU_BASE)
-#define DI_DISP1_CB1_MAP (0x0188 + IPU_BASE)
-#define DI_DISP1_CB2_MAP (0x018C + IPU_BASE)
-#define DI_DISP2_DB0_MAP (0x0190 + IPU_BASE)
-#define DI_DISP2_DB1_MAP (0x0194 + IPU_BASE)
-#define DI_DISP2_DB2_MAP (0x0198 + IPU_BASE)
-#define DI_DISP2_CB0_MAP (0x019C + IPU_BASE)
-#define DI_DISP2_CB1_MAP (0x01A0 + IPU_BASE)
-#define DI_DISP2_CB2_MAP (0x01A4 + IPU_BASE)
-#define DI_DISP3_B0_MAP (0x01A8 + IPU_BASE)
-#define DI_DISP3_B1_MAP (0x01AC + IPU_BASE)
-#define DI_DISP3_B2_MAP (0x01B0 + IPU_BASE)
-#define DI_DISP_ACC_CC (0x01B4 + IPU_BASE)
-#define DI_DISP_LLA_CONF (0x01B8 + IPU_BASE)
-#define DI_DISP_LLA_DATA (0x01BC + IPU_BASE)
-
-/* DI_DISP_SIG_POL bits */
-#define DI_D3_VSYNC_POL (1 << 28)
-#define DI_D3_HSYNC_POL (1 << 27)
-#define DI_D3_DRDY_SHARP_POL (1 << 26)
-#define DI_D3_CLK_POL (1 << 25)
-#define DI_D3_DATA_POL (1 << 24)
-
-/* DI_DISP_IF_CONF bits */
-#define DI_D3_CLK_IDLE (1 << 26)
-#define DI_D3_CLK_SEL (1 << 25)
-#define DI_D3_DATAMSK (1 << 24)
-
-#define IOMUX_PADNUM_MASK 0x1ff
-#define IOMUX_GPIONUM_SHIFT 9
-#define IOMUX_GPIONUM_MASK (0xff << IOMUX_GPIONUM_SHIFT)
-
-#define IOMUX_PIN(gpionum, padnum) ((padnum) & IOMUX_PADNUM_MASK)
-
-#define IOMUX_MODE_L(pin, mode) IOMUX_MODE(((pin) + 0xc) ^ 3, mode)
-
-struct chan_param_mem_planar {
- /* Word 0 */
- u32 xv:10;
- u32 yv:10;
- u32 xb:12;
-
- u32 yb:12;
- u32 res1:2;
- u32 nsb:1;
- u32 lnpb:6;
- u32 ubo_l:11;
-
- u32 ubo_h:15;
- u32 vbo_l:17;
-
- u32 vbo_h:9;
- u32 res2:3;
- u32 fw:12;
- u32 fh_l:8;
-
- u32 fh_h:4;
- u32 res3:28;
-
- /* Word 1 */
- u32 eba0;
-
- u32 eba1;
-
- u32 bpp:3;
- u32 sl:14;
- u32 pfs:3;
- u32 bam:3;
- u32 res4:2;
- u32 npb:6;
- u32 res5:1;
-
- u32 sat:2;
- u32 res6:30;
-} __attribute__ ((packed));
-
-struct chan_param_mem_interleaved {
- /* Word 0 */
- u32 xv:10;
- u32 yv:10;
- u32 xb:12;
-
- u32 yb:12;
- u32 sce:1;
- u32 res1:1;
- u32 nsb:1;
- u32 lnpb:6;
- u32 sx:10;
- u32 sy_l:1;
-
- u32 sy_h:9;
- u32 ns:10;
- u32 sm:10;
- u32 sdx_l:3;
-
- u32 sdx_h:2;
- u32 sdy:5;
- u32 sdrx:1;
- u32 sdry:1;
- u32 sdr1:1;
- u32 res2:2;
- u32 fw:12;
- u32 fh_l:8;
-
- u32 fh_h:4;
- u32 res3:28;
-
- /* Word 1 */
- u32 eba0;
-
- u32 eba1;
-
- u32 bpp:3;
- u32 sl:14;
- u32 pfs:3;
- u32 bam:3;
- u32 res4:2;
- u32 npb:6;
- u32 res5:1;
-
- u32 sat:2;
- u32 scc:1;
- u32 ofs0:5;
- u32 ofs1:5;
- u32 ofs2:5;
- u32 ofs3:5;
- u32 wid0:3;
- u32 wid1:3;
- u32 wid2:3;
-
- u32 wid3:3;
- u32 dec_sel:1;
- u32 res6:28;
-} __attribute__ ((packed));
-
-union chan_param_mem {
- struct chan_param_mem_planar pp;
- struct chan_param_mem_interleaved ip;
-};
-
-/* graphics setup */
-static GraphicDevice panel;
-static struct ctfb_res_modes *mode;
-static struct ctfb_res_modes var_mode;
-
-/*
- * sdc_init_panel() - initialize a synchronous LCD panel.
- * @width: width of panel in pixels.
- * @height: height of panel in pixels.
- * @di_setup: pixel format of the frame buffer
- * @di_panel: either SHARP or normal TFT
- * @return: 0 on success or negative error code on failure.
- */
-static int sdc_init_panel(u16 width, u16 height,
- enum pixel_fmt di_setup, enum ipu_panel di_panel)
-{
- u32 reg, div;
- uint32_t old_conf;
- int clock;
-
- debug("%s(width=%d, height=%d)\n", __func__, width, height);
-
- /* Init clocking, the IPU receives its clock from the hsp divder */
- clock = mxc_get_clock(MXC_IPU_CLK);
- if (clock < 0)
- return -EACCES;
-
- /* Init panel size and blanking periods */
- reg = width + mode->left_margin + mode->right_margin - 1;
- if (reg > 1023) {
- printf("mx3fb: Display width too large, coerced to 1023!");
- reg = 1023;
- }
- reg = ((mode->hsync_len - 1) << 26) | (reg << 16);
- writel(reg, SDC_HOR_CONF);
-
- reg = height + mode->upper_margin + mode->lower_margin - 1;
- if (reg > 1023) {
- printf("mx3fb: Display height too large, coerced to 1023!");
- reg = 1023;
- }
- reg = ((mode->vsync_len - 1) << 26) | SDC_V_SYNC_WIDTH_L | (reg << 16);
- writel(reg, SDC_VER_CONF);
-
- switch (di_panel) {
- case IPU_PANEL_SHARP_TFT:
- writel(0x00FD0102L, SDC_SHARP_CONF_1);
- writel(0x00F500F4L, SDC_SHARP_CONF_2);
- writel(SDC_COM_SHARP | SDC_COM_TFT_COLOR, SDC_COM_CONF);
- /* TODO: probably IF_CONF must be adapted (see below)! */
- break;
- case IPU_PANEL_TFT:
- writel(SDC_COM_TFT_COLOR, SDC_COM_CONF);
- break;
- default:
- return -EINVAL;
- }
-
- /*
- * Calculate divider: The fractional part is 4 bits so simply
- * multiple by 2^4 to get it.
- *
- * Opposed to the kernel driver mode->pixclock is the time of one
- * pixel in pico seconds, so:
- * pixel_clk = 1e12 / mode->pixclock
- * div = ipu_clk * 16 / pixel_clk
- * leads to:
- * div = ipu_clk * 16 / (1e12 / mode->pixclock)
- * or:
- * div = ipu_clk * 16 * mode->pixclock / 1e12
- *
- * To avoid integer overflows this is split into 2 shifts and
- * one divide with sufficient accuracy:
- * 16*1024*128*476837 = 0.9999996682e12
- */
- div = ((clock/1024) * (mode->pixclock/128)) / 476837;
- debug("hsp_clk is %d, div=%d\n", clock, div);
- /* coerce to not less than 4.0, not more than 255.9375 */
- if (div < 0x40)
- div = 0x40;
- else if (div > 0xFFF)
- div = 0xFFF;
- /* DISP3_IF_CLK_DOWN_WR is half the divider value and 2 less
- * fraction bits. Subtract 1 extra from DISP3_IF_CLK_DOWN_WR
- * based on timing debug DISP3_IF_CLK_UP_WR is 0
- */
- writel((((div / 8) - 1) << 22) | div, DI_DISP3_TIME_CONF);
-
- /* DI settings for display 3: clock idle (bit 26) during vsync */
- old_conf = readl(DI_DISP_IF_CONF) & 0x78FFFFFF;
- writel(old_conf | IF_CONF, DI_DISP_IF_CONF);
-
- /* only set display 3 polarity bits */
- old_conf = readl(DI_DISP_SIG_POL) & 0xE0FFFFFF;
- writel(old_conf | mode->sync, DI_DISP_SIG_POL);
-
- writel(fmt_cfg[di_setup].b0, DI_DISP3_B0_MAP);
- writel(fmt_cfg[di_setup].b1, DI_DISP3_B1_MAP);
- writel(fmt_cfg[di_setup].b2, DI_DISP3_B2_MAP);
- writel(readl(DI_DISP_ACC_CC) |
- ((fmt_cfg[di_setup].acc - 1) << 12), DI_DISP_ACC_CC);
-
- debug("DI_DISP_IF_CONF = 0x%08X\n", readl(DI_DISP_IF_CONF));
- debug("DI_DISP_SIG_POL = 0x%08X\n", readl(DI_DISP_SIG_POL));
- debug("DI_DISP3_TIME_CONF = 0x%08X\n", readl(DI_DISP3_TIME_CONF));
- debug("SDC_HOR_CONF = 0x%08X\n", readl(SDC_HOR_CONF));
- debug("SDC_VER_CONF = 0x%08X\n", readl(SDC_VER_CONF));
-
- return 0;
-}
-
-static void ipu_ch_param_set_size(union chan_param_mem *params,
- uint pixelfmt, uint16_t width,
- uint16_t height, uint16_t stride)
-{
- debug("%s(pixelfmt=%d, width=%d, height=%d, stride=%d)\n",
- __func__, pixelfmt, width, height, stride);
-
- params->pp.fw = width - 1;
- params->pp.fh_l = height - 1;
- params->pp.fh_h = (height - 1) >> 8;
- params->pp.sl = stride - 1;
-
- /* See above, for further formats see the Linux driver */
- switch (pixelfmt) {
- case GDF_16BIT_565RGB:
- params->ip.bpp = 2;
- params->ip.pfs = 4;
- params->ip.npb = 7;
- params->ip.sat = 2; /* SAT = 32-bit access */
- params->ip.ofs0 = 0; /* Red bit offset */
- params->ip.ofs1 = 5; /* Green bit offset */
- params->ip.ofs2 = 11; /* Blue bit offset */
- params->ip.ofs3 = 16; /* Alpha bit offset */
- params->ip.wid0 = 4; /* Red bit width - 1 */
- params->ip.wid1 = 5; /* Green bit width - 1 */
- params->ip.wid2 = 4; /* Blue bit width - 1 */
- break;
- case GDF_32BIT_X888RGB:
- params->ip.bpp = 1; /* 24 BPP & RGB PFS */
- params->ip.pfs = 4;
- params->ip.npb = 7;
- params->ip.sat = 2; /* SAT = 32-bit access */
- params->ip.ofs0 = 16; /* Red bit offset */
- params->ip.ofs1 = 8; /* Green bit offset */
- params->ip.ofs2 = 0; /* Blue bit offset */
- params->ip.ofs3 = 24; /* Alpha bit offset */
- params->ip.wid0 = 7; /* Red bit width - 1 */
- params->ip.wid1 = 7; /* Green bit width - 1 */
- params->ip.wid2 = 7; /* Blue bit width - 1 */
- break;
- default:
- printf("mx3fb: Pixel format not supported!\n");
- break;
- }
-
- params->pp.nsb = 1;
-}
-
-static void ipu_ch_param_set_buffer(union chan_param_mem *params,
- void *buf0, void *buf1)
-{
- params->pp.eba0 = (u32)buf0;
- params->pp.eba1 = (u32)buf1;
-}
-
-static void ipu_write_param_mem(uint32_t addr, uint32_t *data,
- uint32_t num_words)
-{
- for (; num_words > 0; num_words--) {
- writel(addr, IPU_IMA_ADDR);
- writel(*data++, IPU_IMA_DATA);
- addr++;
- if ((addr & 0x7) == 5) {
- addr &= ~0x7; /* set to word 0 */
- addr += 8; /* increment to next row */
- }
- }
-}
-
-static uint32_t dma_param_addr(enum ipu_channel channel)
-{
- /* Channel Parameter Memory */
- return 0x10000 | (channel << 4);
-}
-
-static void ipu_init_channel_buffer(enum ipu_channel channel, void *fbmem)
-{
- union chan_param_mem params = {};
- uint32_t reg;
- uint32_t stride_bytes;
-
- stride_bytes = (panel.plnSizeX * panel.gdfBytesPP + 3) & ~3;
-
- debug("%s(channel=%d, fbmem=%p)\n", __func__, channel, fbmem);
-
- /* Build parameter memory data for DMA channel */
- ipu_ch_param_set_size(¶ms, panel.gdfIndex,
- panel.plnSizeX, panel.plnSizeY, stride_bytes);
- ipu_ch_param_set_buffer(¶ms, fbmem, NULL);
- params.pp.bam = 0;
- /* Some channels (rotation) have restriction on burst length */
-
- switch (channel) {
- case IDMAC_SDC_0:
- /* In original code only IPU_PIX_FMT_RGB565 was setting burst */
- params.pp.npb = 16 - 1;
- break;
- default:
- break;
- }
-
- ipu_write_param_mem(dma_param_addr(channel), (uint32_t *)¶ms, 10);
-
- /* Disable double-buffering */
- reg = readl(IPU_CHA_DB_MODE_SEL);
- reg &= ~(1UL << channel);
- writel(reg, IPU_CHA_DB_MODE_SEL);
-}
-
-static void ipu_channel_set_priority(enum ipu_channel channel,
- int prio)
-{
- u32 reg = readl(IDMAC_CHA_PRI);
-
- if (prio)
- reg |= 1UL << channel;
- else
- reg &= ~(1UL << channel);
-
- writel(reg, IDMAC_CHA_PRI);
-}
-
-/*
- * ipu_enable_channel() - enable an IPU channel.
- * @channel: channel ID.
- * @return: 0 on success or negative error code on failure.
- */
-static int ipu_enable_channel(enum ipu_channel channel)
-{
- uint32_t reg;
-
- /* Reset to buffer 0 */
- writel(1UL << channel, IPU_CHA_CUR_BUF);
-
- switch (channel) {
- case IDMAC_SDC_0:
- ipu_channel_set_priority(channel, 1);
- break;
- default:
- break;
- }
-
- reg = readl(IDMAC_CHA_EN);
- writel(reg | (1UL << channel), IDMAC_CHA_EN);
-
- return 0;
-}
-
-static int ipu_update_channel_buffer(enum ipu_channel channel, void *buf)
-{
- uint32_t reg;
-
- reg = readl(IPU_CHA_BUF0_RDY);
- if (reg & (1UL << channel))
- return -EACCES;
-
- /* 44.3.3.1.9 - Row Number 1 (WORD1, offset 0) */
- writel(dma_param_addr(channel) + 0x0008UL, IPU_IMA_ADDR);
- writel((u32)buf, IPU_IMA_DATA);
-
- return 0;
-}
-
-static int idmac_tx_submit(enum ipu_channel channel, void *buf)
-{
- int ret;
-
- ipu_init_channel_buffer(channel, buf);
-
-
- /* ipu_idmac.c::ipu_submit_channel_buffers() */
- ret = ipu_update_channel_buffer(channel, buf);
- if (ret < 0)
- return ret;
-
- /* ipu_idmac.c::ipu_select_buffer() */
- /* Mark buffer 0 as ready. */
- writel(1UL << channel, IPU_CHA_BUF0_RDY);
-
-
- ret = ipu_enable_channel(channel);
- return ret;
-}
-
-static void sdc_enable_channel(void *fbmem)
-{
- int ret;
- u32 reg;
-
- ret = idmac_tx_submit(IDMAC_SDC_0, fbmem);
-
- /* mx3fb.c::sdc_fb_init() */
- if (ret >= 0) {
- reg = readl(SDC_COM_CONF);
- writel(reg | SDC_COM_BG_EN, SDC_COM_CONF);
- }
-
- /*
- * Attention! Without this msleep the channel keeps generating
- * interrupts. Next sdc_set_brightness() is going to be called
- * from mx3fb_blank().
- */
- udelay(2000);
-}
-
-/*
- * mx3fb_set_par() - set framebuffer parameters and change the operating mode.
- * @return: 0 on success or negative error code on failure.
- * TODO: currently only 666 and TFT as DI setup supported
- */
-static int mx3fb_set_par(void)
-{
- int ret;
-
- ret = sdc_init_panel(panel.plnSizeX, panel.plnSizeY,
- IPU_PIX_FMT_RGB666, IPU_PANEL_TFT);
- if (ret < 0)
- return ret;
-
- writel((mode->left_margin << 16) | mode->upper_margin, SDC_BG_POS);
-
- return 0;
-}
-
-static void ll_disp3_enable(void *base)
-{
- u32 reg;
-
- debug("%s(base=0x%x)\n", __func__, (u32) base);
- /* pcm037.c::mxc_board_init() */
-
- /* Display Interface #3 */
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD0, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD1, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD2, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD3, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD4, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD5, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD6, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD7, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD8, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD9, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD10, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD11, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD12, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD13, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD14, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD15, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD16, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_LD17, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_VSYNC3, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_HSYNC, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_FPSHIFT, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_DRDY0, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_D3_REV, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_CONTRAST, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_D3_SPL, MUX_CTL_FUNC));
- mx31_gpio_mux(IOMUX_MODE_L(MX31_PIN_D3_CLS, MUX_CTL_FUNC));
-
-
- /* ipu_idmac.c::ipu_probe() */
-
- /* Start the clock */
- __REG(CCM_CGR1) = __REG(CCM_CGR1) | (3 << 22);
-
-
- /* ipu_idmac.c::ipu_idmac_init() */
-
- /* Service request counter to maximum - shouldn't be needed */
- writel(0x00000070, IDMAC_CONF);
-
-
- /* ipu_idmac.c::ipu_init_channel() */
-
- /* Enable IPU sub modules */
- reg = readl(IPU_CONF) | IPU_CONF_SDC_EN | IPU_CONF_DI_EN;
- writel(reg, IPU_CONF);
-
-
- /* mx3fb.c::init_fb_chan() */
-
- /* set Display Interface clock period */
- writel(0x00100010L, DI_HSP_CLK_PER);
- /* Might need to trigger HSP clock change - see 44.3.3.8.5 */
-
-
- /* mx3fb.c::sdc_set_brightness() */
-
- /* This might be board-specific */
- writel(0x03000000UL | 255 << 16, SDC_PWM_CTRL);
-
-
- /* mx3fb.c::sdc_set_global_alpha() */
-
- /* Use global - not per-pixel - Alpha-blending */
- reg = readl(SDC_GW_CTRL) & 0x00FFFFFFL;
- writel(reg | ((uint32_t) 0xff << 24), SDC_GW_CTRL);
-
- reg = readl(SDC_COM_CONF);
- writel(reg | SDC_COM_GLB_A, SDC_COM_CONF);
-
-
- /* mx3fb.c::sdc_set_color_key() */
-
- /* Disable colour-keying for background */
- reg = readl(SDC_COM_CONF) &
- ~(SDC_COM_GWSEL | SDC_COM_KEY_COLOR_G);
- writel(reg, SDC_COM_CONF);
-
-
- mx3fb_set_par();
-
- sdc_enable_channel(base);
-
- /*
- * Linux driver calls sdc_set_brightness() here again,
- * once is enough for us
- */
- debug("%s() done\n", __func__);
-}
-
-/* ------------------------ public part ------------------- */
-ulong calc_fbsize(void)
-{
- return panel.plnSizeX * panel.plnSizeY * panel.gdfBytesPP;
-}
-
-/*
- * The current implementation is only tested for GDF_16BIT_565RGB!
- * It was switched from the original CONFIG_LCD setup to CONFIG_VIDEO,
- * because the lcd code seemed loaded with color table stuff, that
- * does not relate to most modern TFTs. cfb_console.c looks more
- * straight forward.
- * This is the environment setting for the original setup
- * "unknown=video=ctfb:x:240,y:320,depth:16,mode:0,pclk:185925,le:9,ri:17,
- * up:7,lo:10,hs:1,vs:1,sync:100663296,vmode:0"
- * "videomode=unknown"
- *
- * Settings for VBEST VGG322403 display:
- * "videomode=video=ctfb:x:320,y:240,depth:16,mode:0,pclk:156000,
- * "le:20,ri:68,up:7,lo:29,hs:30,vs:3,sync:100663296,vmode:0"
- *
- * Settings for COM57H5M10XRC display:
- * "videomode=video=ctfb:x:640,y:480,depth:16,mode:0,pclk:40000,
- * "le:120,ri:40,up:35,lo:10,hs:30,vs:3,sync:100663296,vmode:0"
- */
-void *video_hw_init(void)
-{
- char *penv;
- u32 memsize;
- unsigned long t1, hsynch, vsynch;
- int bits_per_pixel, i, tmp, videomode;
-
- tmp = 0;
-
- puts("Video: ");
-
- videomode = CONFIG_SYS_DEFAULT_VIDEO_MODE;
- /* get video mode via environment */
- penv = env_get("videomode");
- if (penv) {
- /* decide if it is a string */
- if (penv[0] <= '9') {
- videomode = (int)hextoul(penv, NULL);
- tmp = 1;
- }
- } else {
- tmp = 1;
- }
- if (tmp) {
- /* parameter are vesa modes */
- /* search params */
- for (i = 0; i < VESA_MODES_COUNT; i++) {
- if (vesa_modes[i].vesanr == videomode)
- break;
- }
- if (i == VESA_MODES_COUNT) {
- printf("No VESA Mode found, switching to mode 0x%x ",
- CONFIG_SYS_DEFAULT_VIDEO_MODE);
- i = 0;
- }
- mode = (struct ctfb_res_modes *)
- &res_mode_init[vesa_modes[i].resindex];
- bits_per_pixel = vesa_modes[i].bits_per_pixel;
- } else {
- mode = (struct ctfb_res_modes *) &var_mode;
- bits_per_pixel = video_get_params(mode, penv);
- }
-
- /* calculate hsynch and vsynch freq (info only) */
- t1 = (mode->left_margin + mode->xres +
- mode->right_margin + mode->hsync_len) / 8;
- t1 *= 8;
- t1 *= mode->pixclock;
- t1 /= 1000;
- hsynch = 1000000000L / t1;
- t1 *= (mode->upper_margin + mode->yres +
- mode->lower_margin + mode->vsync_len);
- t1 /= 1000;
- vsynch = 1000000000L / t1;
-
- /* fill in Graphic device struct */
- sprintf(panel.modeIdent, "%dx%dx%d %ldkHz %ldHz",
- mode->xres, mode->yres,
- bits_per_pixel, (hsynch / 1000), (vsynch / 1000));
- printf("%s\n", panel.modeIdent);
- panel.winSizeX = mode->xres;
- panel.winSizeY = mode->yres;
- panel.plnSizeX = mode->xres;
- panel.plnSizeY = mode->yres;
-
- switch (bits_per_pixel) {
- case 24:
- panel.gdfBytesPP = 4;
- panel.gdfIndex = GDF_32BIT_X888RGB;
- break;
- case 16:
- panel.gdfBytesPP = 2;
- panel.gdfIndex = GDF_16BIT_565RGB;
- break;
- default:
- panel.gdfBytesPP = 1;
- panel.gdfIndex = GDF__8BIT_INDEX;
- break;
- }
-
- /* set up Hardware */
- memsize = calc_fbsize();
-
- debug("%s() allocating %d bytes\n", __func__, memsize);
-
- /* fill in missing Graphic device struct */
- panel.frameAdrs = (u32) malloc(memsize);
- if (panel.frameAdrs == 0) {
- printf("%s() malloc(%d) failed\n", __func__, memsize);
- return 0;
- }
- panel.memSize = memsize;
-
- ll_disp3_enable((void *) panel.frameAdrs);
- memset((void *) panel.frameAdrs, 0, memsize);
-
- debug("%s() done, framebuffer at 0x%x, size=%d cleared\n",
- __func__, panel.frameAdrs, memsize);
-
- return (void *) &panel;
-}
projects / u-boot.git / commitdiff