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git01.mediatek.com / filogic / uboot / 3396710cb6050e7e30a51189c6b029ce84e4c0e4 / . / drivers / video / tda19988.c
blob: 01ed6193ea4b850ebf2a8a4829790449f87eb61a [file] [log] [blame]
Liviu Dudau33967102018-09-28 13:49:31 +0100[diff] [blame^]1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2018 Liviu Dudau <liviu@dudau.co.uk>
4 *
5 * Based on the Linux driver, (C) 2012 Texas Instruments
6 */
7
8#include <common.h>
9#include <dm.h>
10#include <display.h>
11#include <i2c.h>
12
13/*
14 * TDA19988 uses paged registers. We encode the page# in the upper
15 * bits of the register#. It also means that reads/writes to a register
16 * have to ensure that the register's page is selected as the current
17 * page.
18 */
19#define REG(page, addr) (((page) << 8) | (addr))
20#define REG2ADDR(reg) ((reg) & 0xff)
21#define REG2PAGE(reg) (((reg) >> 8) & 0xff)
22
23/* register for setting current page */
24#define REG_CURRENT_PAGE 0xff
25
26/* Page 00h: General Control */
27#define REG_VERSION_LSB REG(0x00, 0x00) /* read */
28#define REG_MAIN_CNTRL0 REG(0x00, 0x01) /* read/write */
29#define MAIN_CNTRL0_SR BIT(0)
30#define MAIN_CNTRL0_DECS BIT(1)
31#define MAIN_CNTRL0_DEHS BIT(2)
32#define MAIN_CNTRL0_CECS BIT(3)
33#define MAIN_CNTRL0_CEHS BIT(4)
34#define MAIN_CNTRL0_SCALER BIT(7)
35#define REG_VERSION_MSB REG(0x00, 0x02) /* read */
36#define REG_SOFTRESET REG(0x00, 0x0a) /* write */
37#define SOFTRESET_AUDIO BIT(0)
38#define SOFTRESET_I2C_MASTER BIT(1)
39#define REG_DDC_DISABLE REG(0x00, 0x0b) /* read/write */
40#define REG_I2C_MASTER REG(0x00, 0x0d) /* read/write */
41#define I2C_MASTER_DIS_MM BIT(0)
42#define I2C_MASTER_DIS_FILT BIT(1)
43#define I2C_MASTER_APP_STRT_LAT BIT(2)
44#define REG_FEAT_POWERDOWN REG(0x00, 0x0e) /* read/write */
45#define FEAT_POWERDOWN_PREFILT BIT(0)
46#define FEAT_POWERDOWN_CSC BIT(1)
47#define FEAT_POWERDOWN_SPDIF BIT(3)
48#define REG_INT_FLAGS_0 REG(0x00, 0x0f) /* read/write */
49#define REG_INT_FLAGS_1 REG(0x00, 0x10) /* read/write */
50#define REG_INT_FLAGS_2 REG(0x00, 0x11) /* read/write */
51#define INT_FLAGS_2_EDID_BLK_RD BIT(1)
52#define REG_ENA_VP_0 REG(0x00, 0x18) /* read/write */
53#define REG_ENA_VP_1 REG(0x00, 0x19) /* read/write */
54#define REG_ENA_VP_2 REG(0x00, 0x1a) /* read/write */
55#define REG_ENA_AP REG(0x00, 0x1e) /* read/write */
56#define REG_VIP_CNTRL_0 REG(0x00, 0x20) /* write */
57#define VIP_CNTRL_0_MIRR_A BIT(7)
58#define VIP_CNTRL_0_SWAP_A(x) (((x) & 7) << 4)
59#define VIP_CNTRL_0_MIRR_B BIT(3)
60#define VIP_CNTRL_0_SWAP_B(x) (((x) & 7) << 0)
61#define REG_VIP_CNTRL_1 REG(0x00, 0x21) /* write */
62#define VIP_CNTRL_1_MIRR_C BIT(7)
63#define VIP_CNTRL_1_SWAP_C(x) (((x) & 7) << 4)
64#define VIP_CNTRL_1_MIRR_D BIT(3)
65#define VIP_CNTRL_1_SWAP_D(x) (((x) & 7) << 0)
66#define REG_VIP_CNTRL_2 REG(0x00, 0x22) /* write */
67#define VIP_CNTRL_2_MIRR_E BIT(7)
68#define VIP_CNTRL_2_SWAP_E(x) (((x) & 7) << 4)
69#define VIP_CNTRL_2_MIRR_F BIT(3)
70#define VIP_CNTRL_2_SWAP_F(x) (((x) & 7) << 0)
71#define REG_VIP_CNTRL_3 REG(0x00, 0x23) /* write */
72#define VIP_CNTRL_3_X_TGL BIT(0)
73#define VIP_CNTRL_3_H_TGL BIT(1)
74#define VIP_CNTRL_3_V_TGL BIT(2)
75#define VIP_CNTRL_3_EMB BIT(3)
76#define VIP_CNTRL_3_SYNC_DE BIT(4)
77#define VIP_CNTRL_3_SYNC_HS BIT(5)
78#define VIP_CNTRL_3_DE_INT BIT(6)
79#define VIP_CNTRL_3_EDGE BIT(7)
80#define REG_VIP_CNTRL_4 REG(0x00, 0x24) /* write */
81#define VIP_CNTRL_4_BLC(x) (((x) & 3) << 0)
82#define VIP_CNTRL_4_BLANKIT(x) (((x) & 3) << 2)
83#define VIP_CNTRL_4_CCIR656 BIT(4)
84#define VIP_CNTRL_4_656_ALT BIT(5)
85#define VIP_CNTRL_4_TST_656 BIT(6)
86#define VIP_CNTRL_4_TST_PAT BIT(7)
87#define REG_VIP_CNTRL_5 REG(0x00, 0x25) /* write */
88#define VIP_CNTRL_5_CKCASE BIT(0)
89#define VIP_CNTRL_5_SP_CNT(x) (((x) & 3) << 1)
90#define REG_MUX_VP_VIP_OUT REG(0x00, 0x27) /* read/write */
91#define REG_MAT_CONTRL REG(0x00, 0x80) /* write */
92#define MAT_CONTRL_MAT_SC(x) (((x) & 3) << 0)
93#define MAT_CONTRL_MAT_BP BIT(2)
94#define REG_VIDFORMAT REG(0x00, 0xa0) /* write */
95#define REG_REFPIX_MSB REG(0x00, 0xa1) /* write */
96#define REG_REFPIX_LSB REG(0x00, 0xa2) /* write */
97#define REG_REFLINE_MSB REG(0x00, 0xa3) /* write */
98#define REG_REFLINE_LSB REG(0x00, 0xa4) /* write */
99#define REG_NPIX_MSB REG(0x00, 0xa5) /* write */
100#define REG_NPIX_LSB REG(0x00, 0xa6) /* write */
101#define REG_NLINE_MSB REG(0x00, 0xa7) /* write */
102#define REG_NLINE_LSB REG(0x00, 0xa8) /* write */
103#define REG_VS_LINE_STRT_1_MSB REG(0x00, 0xa9) /* write */
104#define REG_VS_LINE_STRT_1_LSB REG(0x00, 0xaa) /* write */
105#define REG_VS_PIX_STRT_1_MSB REG(0x00, 0xab) /* write */
106#define REG_VS_PIX_STRT_1_LSB REG(0x00, 0xac) /* write */
107#define REG_VS_LINE_END_1_MSB REG(0x00, 0xad) /* write */
108#define REG_VS_LINE_END_1_LSB REG(0x00, 0xae) /* write */
109#define REG_VS_PIX_END_1_MSB REG(0x00, 0xaf) /* write */
110#define REG_VS_PIX_END_1_LSB REG(0x00, 0xb0) /* write */
111#define REG_VS_LINE_STRT_2_MSB REG(0x00, 0xb1) /* write */
112#define REG_VS_LINE_STRT_2_LSB REG(0x00, 0xb2) /* write */
113#define REG_VS_PIX_STRT_2_MSB REG(0x00, 0xb3) /* write */
114#define REG_VS_PIX_STRT_2_LSB REG(0x00, 0xb4) /* write */
115#define REG_VS_LINE_END_2_MSB REG(0x00, 0xb5) /* write */
116#define REG_VS_LINE_END_2_LSB REG(0x00, 0xb6) /* write */
117#define REG_VS_PIX_END_2_MSB REG(0x00, 0xb7) /* write */
118#define REG_VS_PIX_END_2_LSB REG(0x00, 0xb8) /* write */
119#define REG_HS_PIX_START_MSB REG(0x00, 0xb9) /* write */
120#define REG_HS_PIX_START_LSB REG(0x00, 0xba) /* write */
121#define REG_HS_PIX_STOP_MSB REG(0x00, 0xbb) /* write */
122#define REG_HS_PIX_STOP_LSB REG(0x00, 0xbc) /* write */
123#define REG_VWIN_START_1_MSB REG(0x00, 0xbd) /* write */
124#define REG_VWIN_START_1_LSB REG(0x00, 0xbe) /* write */
125#define REG_VWIN_END_1_MSB REG(0x00, 0xbf) /* write */
126#define REG_VWIN_END_1_LSB REG(0x00, 0xc0) /* write */
127#define REG_VWIN_START_2_MSB REG(0x00, 0xc1) /* write */
128#define REG_VWIN_START_2_LSB REG(0x00, 0xc2) /* write */
129#define REG_VWIN_END_2_MSB REG(0x00, 0xc3) /* write */
130#define REG_VWIN_END_2_LSB REG(0x00, 0xc4) /* write */
131#define REG_DE_START_MSB REG(0x00, 0xc5) /* write */
132#define REG_DE_START_LSB REG(0x00, 0xc6) /* write */
133#define REG_DE_STOP_MSB REG(0x00, 0xc7) /* write */
134#define REG_DE_STOP_LSB REG(0x00, 0xc8) /* write */
135#define REG_TBG_CNTRL_0 REG(0x00, 0xca) /* write */
136#define TBG_CNTRL_0_TOP_TGL BIT(0)
137#define TBG_CNTRL_0_TOP_SEL BIT(1)
138#define TBG_CNTRL_0_DE_EXT BIT(2)
139#define TBG_CNTRL_0_TOP_EXT BIT(3)
140#define TBG_CNTRL_0_FRAME_DIS BIT(5)
141#define TBG_CNTRL_0_SYNC_MTHD BIT(6)
142#define TBG_CNTRL_0_SYNC_ONCE BIT(7)
143#define REG_TBG_CNTRL_1 REG(0x00, 0xcb) /* write */
144#define TBG_CNTRL_1_H_TGL BIT(0)
145#define TBG_CNTRL_1_V_TGL BIT(1)
146#define TBG_CNTRL_1_TGL_EN BIT(2)
147#define TBG_CNTRL_1_X_EXT BIT(3)
148#define TBG_CNTRL_1_H_EXT BIT(4)
149#define TBG_CNTRL_1_V_EXT BIT(5)
150#define TBG_CNTRL_1_DWIN_DIS BIT(6)
151#define REG_ENABLE_SPACE REG(0x00, 0xd6) /* write */
152#define REG_HVF_CNTRL_0 REG(0x00, 0xe4) /* write */
153#define HVF_CNTRL_0_SM BIT(7)
154#define HVF_CNTRL_0_RWB BIT(6)
155#define HVF_CNTRL_0_PREFIL(x) (((x) & 3) << 2)
156#define HVF_CNTRL_0_INTPOL(x) (((x) & 3) << 0)
157#define REG_HVF_CNTRL_1 REG(0x00, 0xe5) /* write */
158#define HVF_CNTRL_1_FOR BIT(0)
159#define HVF_CNTRL_1_YUVBLK BIT(1)
160#define HVF_CNTRL_1_VQR(x) (((x) & 3) << 2)
161#define HVF_CNTRL_1_PAD(x) (((x) & 3) << 4)
162#define REG_RPT_CNTRL REG(0x00, 0xf0) /* write */
163#define REG_AIP_CLKSEL REG(0x00, 0xfd) /* write */
164#define AIP_CLKSEL_AIP_SPDIF (0 << 3)
165#define AIP_CLKSEL_AIP_I2S BIT(3)
166#define AIP_CLKSEL_FS_ACLK (0 << 0)
167#define AIP_CLKSEL_FS_MCLK BIT(0)
168
169/* Page 02h: PLL settings */
170#define REG_PLL_SERIAL_1 REG(0x02, 0x00) /* read/write */
171#define PLL_SERIAL_1_SRL_FDN BIT(0)
172#define PLL_SERIAL_1_SRL_IZ(x) (((x) & 3) << 1)
173#define PLL_SERIAL_1_SRL_MAN_IZ BIT(6)
174#define REG_PLL_SERIAL_2 REG(0x02, 0x01) /* read/write */
175#define PLL_SERIAL_2_SRL_NOSC(x) ((x) << 0)
176#define PLL_SERIAL_2_SRL_PR(x) (((x) & 0xf) << 4)
177#define REG_PLL_SERIAL_3 REG(0x02, 0x02) /* read/write */
178#define PLL_SERIAL_3_SRL_CCIR BIT(0)
179#define PLL_SERIAL_3_SRL_DE BIT(2)
180#define PLL_SERIAL_3_SRL_PXIN_SEL BIT(4)
181#define REG_SERIALIZER REG(0x02, 0x03) /* read/write */
182#define REG_BUFFER_OUT REG(0x02, 0x04) /* read/write */
183#define REG_PLL_SCG1 REG(0x02, 0x05) /* read/write */
184#define REG_PLL_SCG2 REG(0x02, 0x06) /* read/write */
185#define REG_PLL_SCGN1 REG(0x02, 0x07) /* read/write */
186#define REG_PLL_SCGN2 REG(0x02, 0x08) /* read/write */
187#define REG_PLL_SCGR1 REG(0x02, 0x09) /* read/write */
188#define REG_PLL_SCGR2 REG(0x02, 0x0a) /* read/write */
189#define REG_AUDIO_DIV REG(0x02, 0x0e) /* read/write */
190#define AUDIO_DIV_SERCLK_1 0
191#define AUDIO_DIV_SERCLK_2 1
192#define AUDIO_DIV_SERCLK_4 2
193#define AUDIO_DIV_SERCLK_8 3
194#define AUDIO_DIV_SERCLK_16 4
195#define AUDIO_DIV_SERCLK_32 5
196#define REG_SEL_CLK REG(0x02, 0x11) /* read/write */
197#define SEL_CLK_SEL_CLK1 BIT(0)
198#define SEL_CLK_SEL_VRF_CLK(x) (((x) & 3) << 1)
199#define SEL_CLK_ENA_SC_CLK BIT(3)
200#define REG_ANA_GENERAL REG(0x02, 0x12) /* read/write */
201
202/* Page 09h: EDID Control */
203#define REG_EDID_DATA_0 REG(0x09, 0x00) /* read */
204/* next 127 successive registers are the EDID block */
205#define REG_EDID_CTRL REG(0x09, 0xfa) /* read/write */
206#define REG_DDC_ADDR REG(0x09, 0xfb) /* read/write */
207#define REG_DDC_OFFS REG(0x09, 0xfc) /* read/write */
208#define REG_DDC_SEGM_ADDR REG(0x09, 0xfd) /* read/write */
209#define REG_DDC_SEGM REG(0x09, 0xfe) /* read/write */
210
211/* Page 11h: audio settings and content info packets */
212#define REG_AIP_CNTRL_0 REG(0x11, 0x00) /* read/write */
213#define AIP_CNTRL_0_RST_FIFO BIT(0)
214#define REG_ENC_CNTRL REG(0x11, 0x0d) /* read/write */
215#define ENC_CNTRL_RST_ENC BIT(0)
216#define ENC_CNTRL_RST_SEL BIT(1)
217#define ENC_CNTRL_CTL_CODE(x) (((x) & 3) << 2)
218
219/* Page 12h: HDCP and OTP */
220#define REG_TX3 REG(0x12, 0x9a) /* read/write */
221#define REG_TX4 REG(0x12, 0x9b) /* read/write */
222#define TX4_PD_RAM BIT(1)
223#define REG_TX33 REG(0x12, 0xb8) /* read/write */
224#define TX33_HDMI BIT(1)
225
226/* CEC registers, not paged */
227#define REG_CEC_FRO_IM_CLK_CTRL 0xfb /* read/write */
228#define CEC_FRO_IM_CLK_CTRL_GHOST_DIS BIT(7)
229#define CEC_FRO_IM_CLK_CTRL_ENA_OTP BIT(6)
230#define CEC_FRO_IM_CLK_CTRL_IMCLK_SEL BIT(1)
231#define CEC_FRO_IM_CLK_CTRL_FRO_DIV BIT(0)
232#define REG_CEC_RXSHPDINTENA 0xfc /* read/write */
233#define REG_CEC_RXSHPDINT 0xfd /* read */
234#define CEC_RXSHPDINT_RXSENS BIT(0)
235#define CEC_RXSHPDINT_HPD BIT(1)
236#define TDA19988_CEC_ENAMODS 0xff /* read/write */
237#define CEC_ENAMODS_EN_RXSENS BIT(2)
238#define CEC_ENAMODS_EN_HDMI BIT(1)
239#define CEC_ENAMODS_EN_CEC BIT(0)
240
241/* Device versions */
242#define TDA9989N2 0x0101
243#define TDA19989 0x0201
244#define TDA19989N2 0x0202
245#define TDA19988 0x0301
246
247struct tda19988_priv {
248 struct udevice *chip;
249 struct udevice *cec_chip;
250 u16 revision;
251 u8 current_page;
252};
253
254static void tda19988_register_set(struct tda19988_priv *priv, u16 reg, u8 val)
255{
256 u8 old_val, page = REG2PAGE(reg);
257
258 if (priv->current_page != page) {
259 dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
260 priv->current_page = page;
261 }
262 old_val = dm_i2c_reg_read(priv->chip, REG2ADDR(reg));
263 old_val |= val;
264 dm_i2c_reg_write(priv->chip, REG2ADDR(reg), old_val);
265}
266
267static void tda19988_register_clear(struct tda19988_priv *priv, u16 reg, u8 val)
268{
269 u8 old_val, page = REG2PAGE(reg);
270
271 if (priv->current_page != page) {
272 dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
273 priv->current_page = page;
274 }
275 old_val = dm_i2c_reg_read(priv->chip, REG2ADDR(reg));
276 old_val &= ~val;
277 dm_i2c_reg_write(priv->chip, REG2ADDR(reg), old_val);
278}
279
280static void tda19988_register_write(struct tda19988_priv *priv, u16 reg, u8 val)
281{
282 u8 page = REG2PAGE(reg);
283
284 if (priv->current_page != page) {
285 dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
286 priv->current_page = page;
287 }
288 dm_i2c_reg_write(priv->chip, REG2ADDR(reg), val);
289}
290
291static int tda19988_register_read(struct tda19988_priv *priv, u16 reg)
292{
293 u8 page = REG2PAGE(reg);
294
295 if (priv->current_page != page) {
296 dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
297 priv->current_page = page;
298 }
299 return dm_i2c_reg_read(priv->chip, REG2ADDR(reg));
300}
301
302static void tda19988_register_write16(struct tda19988_priv *priv,
303 u16 reg, u16 val)
304{
305 u8 buf[] = { val >> 8, val }, page = REG2PAGE(reg);
306
307 if (priv->current_page != page) {
308 dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
309 priv->current_page = page;
310 }
311 dm_i2c_write(priv->chip, REG2ADDR(reg), buf, 2);
312}
313
314static int tda19988_read_edid(struct udevice *dev, u8 *buf, int buf_size)
315{
316 struct tda19988_priv *priv = dev_get_priv(dev);
317 int i, val = 0, offset = 0;
318
319 /*
320 * The TDA998x has a problem when trying to read the EDID close to a
321 * HPD assertion: it needs a delay of 100ms to avoid timing out while
322 * trying to read EDID data.
323 */
324 mdelay(120);
325
326 if (priv->revision == TDA19988)
327 tda19988_register_clear(priv, REG_TX4, TX4_PD_RAM);
328
329 while (offset < buf_size) {
330 tda19988_register_write(priv, REG_DDC_ADDR, 0xa0);
331 tda19988_register_write(priv, REG_DDC_OFFS, offset);
332 tda19988_register_write(priv, REG_DDC_SEGM_ADDR, 0x60);
333 tda19988_register_write(priv, REG_DDC_SEGM, 0);
334
335 /* enable reading EDID */
336 tda19988_register_write(priv, REG_EDID_CTRL, 1);
337
338 /* flags must be cleared by software */
339 tda19988_register_write(priv, REG_EDID_CTRL, 0);
340
341 /* wait for block read to complete */
342 for (i = 300; i > 0; i--) {
343 mdelay(1);
344 val = tda19988_register_read(priv, REG_INT_FLAGS_2);
345 if (val < 0)
346 return val;
347 if (val & INT_FLAGS_2_EDID_BLK_RD)
348 break;
349 }
350
351 if (i == 0)
352 return -ETIMEDOUT;
353
354 priv->current_page = REG2PAGE(REG_EDID_DATA_0);
355 dm_i2c_reg_write(priv->chip,
356 REG_CURRENT_PAGE, REG2PAGE(REG_EDID_DATA_0));
357 val = dm_i2c_read(priv->chip,
358 REG2ADDR(REG_EDID_DATA_0), buf + offset, 128);
359 offset += 128;
360 }
361
362 if (priv->revision == TDA19988)
363 tda19988_register_set(priv, REG_TX4, TX4_PD_RAM);
364
365 return offset;
366}
367
368static int tda19988_enable(struct udevice *dev, int panel_bpp,
369 const struct display_timing *timing)
370{
371 struct tda19988_priv *priv = dev_get_priv(dev);
372 u8 div = 148500000 / timing->pixelclock.typ, reg;
373 u16 line_clocks, lines;
374
375 if (dev != 0) {
376 div--;
377 if (div > 3)
378 div = 3;
379 }
380 /* first disable the video ports */
381 tda19988_register_write(priv, REG_ENA_VP_0, 0);
382 tda19988_register_write(priv, REG_ENA_VP_1, 0);
383 tda19988_register_write(priv, REG_ENA_VP_2, 0);
384
385 /* shutdown audio */
386 tda19988_register_write(priv, REG_ENA_AP, 0);
387
388 line_clocks = timing->hsync_len.typ + timing->hback_porch.typ +
389 timing->hactive.typ + timing->hfront_porch.typ;
390 lines = timing->vsync_len.typ + timing->vback_porch.typ +
391 timing->vactive.typ + timing->vfront_porch.typ;
392
393 /* mute the audio FIFO */
394 tda19988_register_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
395 /* HDMI HDCP: off */
396 tda19988_register_write(priv, REG_TBG_CNTRL_1, TBG_CNTRL_1_DWIN_DIS);
397 tda19988_register_clear(priv, REG_TX33, TX33_HDMI);
398 tda19988_register_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(0));
399
400 /* no pre-filter or interpolator */
401 tda19988_register_write(priv, REG_HVF_CNTRL_0, HVF_CNTRL_0_PREFIL(0) |
402 HVF_CNTRL_0_INTPOL(0));
403 tda19988_register_set(priv, REG_FEAT_POWERDOWN,
404 FEAT_POWERDOWN_PREFILT);
405 tda19988_register_write(priv, REG_VIP_CNTRL_5, VIP_CNTRL_5_SP_CNT(0));
406 tda19988_register_write(priv, REG_VIP_CNTRL_4,
407 VIP_CNTRL_4_BLANKIT(0) | VIP_CNTRL_4_BLC(0) |
408 VIP_CNTRL_4_TST_PAT);
409
410 tda19988_register_clear(priv, REG_PLL_SERIAL_1,
411 PLL_SERIAL_1_SRL_MAN_IZ);
412 tda19988_register_clear(priv, REG_PLL_SERIAL_3, PLL_SERIAL_3_SRL_CCIR |
413 PLL_SERIAL_3_SRL_DE);
414
415 tda19988_register_write(priv, REG_SERIALIZER, 0);
416 tda19988_register_write(priv, REG_HVF_CNTRL_1, HVF_CNTRL_1_VQR(0));
417
418 tda19988_register_write(priv, REG_RPT_CNTRL, 0);
419 tda19988_register_write(priv, REG_SEL_CLK, SEL_CLK_SEL_VRF_CLK(0) |
420 SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
421 tda19988_register_write(priv, REG_PLL_SERIAL_2,
422 PLL_SERIAL_2_SRL_NOSC(div) |
423 PLL_SERIAL_2_SRL_PR(0));
424
425 /* set color matrix bypass flag: */
426 tda19988_register_write(priv, REG_MAT_CONTRL, MAT_CONTRL_MAT_BP |
427 MAT_CONTRL_MAT_SC(1));
428 tda19988_register_set(priv, REG_FEAT_POWERDOWN, FEAT_POWERDOWN_CSC);
429
430 /* set BIAS tmds value: */
431 tda19988_register_write(priv, REG_ANA_GENERAL, 0x09);
432
433 /*
434 * Sync on rising HSYNC/VSYNC
435 */
436 reg = VIP_CNTRL_3_SYNC_HS;
437
438 /*
439 * TDA19988 requires high-active sync at input stage,
440 * so invert low-active sync provided by master encoder here
441 */
442 if (timing->flags & DISPLAY_FLAGS_HSYNC_LOW)
443 reg |= VIP_CNTRL_3_H_TGL;
444 if (timing->flags & DISPLAY_FLAGS_VSYNC_LOW)
445 reg |= VIP_CNTRL_3_V_TGL;
446 tda19988_register_write(priv, REG_VIP_CNTRL_3, reg);
447
448 tda19988_register_write(priv, REG_VIDFORMAT, 0x00);
449 tda19988_register_write16(priv, REG_REFPIX_MSB,
450 timing->hfront_porch.typ + 3);
451 tda19988_register_write16(priv, REG_REFLINE_MSB,
452 timing->vfront_porch.typ + 1);
453 tda19988_register_write16(priv, REG_NPIX_MSB, line_clocks);
454 tda19988_register_write16(priv, REG_NLINE_MSB, lines);
455 tda19988_register_write16(priv, REG_VS_LINE_STRT_1_MSB,
456 timing->vfront_porch.typ);
457 tda19988_register_write16(priv, REG_VS_PIX_STRT_1_MSB,
458 timing->hfront_porch.typ);
459 tda19988_register_write16(priv, REG_VS_LINE_END_1_MSB,
460 timing->vfront_porch.typ +
461 timing->vsync_len.typ);
462 tda19988_register_write16(priv, REG_VS_PIX_END_1_MSB,
463 timing->hfront_porch.typ);
464 tda19988_register_write16(priv, REG_VS_LINE_STRT_2_MSB, 0);
465 tda19988_register_write16(priv, REG_VS_PIX_STRT_2_MSB, 0);
466 tda19988_register_write16(priv, REG_VS_LINE_END_2_MSB, 0);
467 tda19988_register_write16(priv, REG_VS_PIX_END_2_MSB, 0);
468 tda19988_register_write16(priv, REG_HS_PIX_START_MSB,
469 timing->hfront_porch.typ);
470 tda19988_register_write16(priv, REG_HS_PIX_STOP_MSB,
471 timing->hfront_porch.typ +
472 timing->hsync_len.typ);
473 tda19988_register_write16(priv, REG_VWIN_START_1_MSB,
474 lines - timing->vactive.typ - 1);
475 tda19988_register_write16(priv, REG_VWIN_END_1_MSB, lines - 1);
476 tda19988_register_write16(priv, REG_VWIN_START_2_MSB, 0);
477 tda19988_register_write16(priv, REG_VWIN_END_2_MSB, 0);
478 tda19988_register_write16(priv, REG_DE_START_MSB,
479 line_clocks - timing->hactive.typ);
480 tda19988_register_write16(priv, REG_DE_STOP_MSB, line_clocks);
481
482 if (priv->revision == TDA19988) {
483 /* let incoming pixels fill the active space (if any) */
484 tda19988_register_write(priv, REG_ENABLE_SPACE, 0x00);
485 }
486
487 /*
488 * Always generate sync polarity relative to input sync and
489 * revert input stage toggled sync at output stage
490 */
491 reg = TBG_CNTRL_1_DWIN_DIS | TBG_CNTRL_1_TGL_EN;
492 if (timing->flags & DISPLAY_FLAGS_HSYNC_LOW)
493 reg |= TBG_CNTRL_1_H_TGL;
494 if (timing->flags & DISPLAY_FLAGS_VSYNC_LOW)
495 reg |= TBG_CNTRL_1_V_TGL;
496 tda19988_register_write(priv, REG_TBG_CNTRL_1, reg);
497
498 /* must be last register set: */
499 tda19988_register_write(priv, REG_TBG_CNTRL_0, 0);
500
501 /* turn on HDMI HDCP */
502 reg &= ~TBG_CNTRL_1_DWIN_DIS;
503 tda19988_register_write(priv, REG_TBG_CNTRL_1, reg);
504 tda19988_register_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(1));
505 tda19988_register_set(priv, REG_TX33, TX33_HDMI);
506
507 mdelay(400);
508
509 /* enable video ports */
510 tda19988_register_write(priv, REG_ENA_VP_0, 0xff);
511 tda19988_register_write(priv, REG_ENA_VP_1, 0xff);
512 tda19988_register_write(priv, REG_ENA_VP_2, 0xff);
513 /* set muxing after enabling ports: */
514 tda19988_register_write(priv, REG_VIP_CNTRL_0,
515 VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3));
516 tda19988_register_write(priv, REG_VIP_CNTRL_1,
517 VIP_CNTRL_1_SWAP_C(4) | VIP_CNTRL_1_SWAP_D(5));
518 tda19988_register_write(priv, REG_VIP_CNTRL_2,
519 VIP_CNTRL_2_SWAP_E(0) | VIP_CNTRL_2_SWAP_F(1));
520
521 return 0;
522}
523
524struct dm_display_ops tda19988_ops = {
525 .read_edid = tda19988_read_edid,
526 .enable = tda19988_enable,
527};
528
529static const struct udevice_id tda19988_ids[] = {
530 { .compatible = "nxp,tda998x" },
531 { }
532};
533
534static int tda19988_probe(struct udevice *dev)
535{
536 u8 cec_addr, chip_addr, rev_lo, rev_hi;
537 int err;
538 struct tda19988_priv *priv = dev_get_priv(dev);
539
540 chip_addr = dev_read_addr(dev);
541 /* CEC I2C address is using TDA19988 I2C address configuration pins */
542 cec_addr = 0x34 + (chip_addr & 0x03);
543
544 err = i2c_get_chip_for_busnum(0, cec_addr, 1, &priv->cec_chip);
545 if (err) {
546 printf("cec i2c_get_chip_for_busnum returned %d\n", err);
547 return err;
548 }
549
550 err = i2c_get_chip_for_busnum(0, chip_addr, 1, &priv->chip);
551 if (err) {
552 printf("i2c_get_chip_for_busnum returned %d\n", err);
553 return err;
554 }
555
556 priv->current_page = 0xff;
557
558 /* wake up device */
559 dm_i2c_reg_write(priv->cec_chip, TDA19988_CEC_ENAMODS,
560 CEC_ENAMODS_EN_RXSENS | CEC_ENAMODS_EN_HDMI);
561
562 /* reset audio and I2C master */
563 tda19988_register_write(priv, REG_SOFTRESET,
564 SOFTRESET_AUDIO | SOFTRESET_I2C_MASTER);
565 mdelay(50);
566 tda19988_register_write(priv, REG_SOFTRESET, 0);
567 mdelay(50);
568
569 /* reset transmitter */
570 tda19988_register_set(priv, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
571 tda19988_register_clear(priv, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
572
573 /* PLL registers common configuration */
574 tda19988_register_write(priv, REG_PLL_SERIAL_1, 0x00);
575 tda19988_register_write(priv, REG_PLL_SERIAL_2,
576 PLL_SERIAL_2_SRL_NOSC(1));
577 tda19988_register_write(priv, REG_PLL_SERIAL_3, 0x00);
578 tda19988_register_write(priv, REG_SERIALIZER, 0x00);
579 tda19988_register_write(priv, REG_BUFFER_OUT, 0x00);
580 tda19988_register_write(priv, REG_PLL_SCG1, 0x00);
581 tda19988_register_write(priv, REG_AUDIO_DIV, AUDIO_DIV_SERCLK_8);
582 tda19988_register_write(priv, REG_SEL_CLK,
583 SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
584 tda19988_register_write(priv, REG_PLL_SCGN1, 0xfa);
585 tda19988_register_write(priv, REG_PLL_SCGN2, 0x00);
586 tda19988_register_write(priv, REG_PLL_SCGR1, 0x5b);
587 tda19988_register_write(priv, REG_PLL_SCGR2, 0x00);
588 tda19988_register_write(priv, REG_PLL_SCG2, 0x10);
589
590 /* Write the default value MUX register */
591 tda19988_register_write(priv, REG_MUX_VP_VIP_OUT, 0x24);
592
593 /* read version */
594 rev_lo = dm_i2c_reg_read(priv->chip, REG_VERSION_LSB);
595 rev_hi = dm_i2c_reg_read(priv->chip, REG_VERSION_MSB);
596
597 /* mask off feature bits */
598 priv->revision = ((rev_hi << 8) | rev_lo) & ~0x30;
599
600 printf("HDMI: ");
601 switch (priv->revision) {
602 case TDA9989N2:
603 printf("TDA9989 n2\n");
604 break;
605 case TDA19989:
606 printf("TDA19989\n");
607 break;
608 case TDA19989N2:
609 printf("TDA19989 n2\n");
610 break;
611 case TDA19988:
612 printf("TDA19988\n");
613 break;
614 default:
615 printf("unknown TDA device: 0x%04x\n", priv->revision);
616 return -ENXIO;
617 }
618
619 /* after reset, enable DDC */
620 tda19988_register_write(priv, REG_DDC_DISABLE, 0x00);
621
622 /* set clock on DDC channel */
623 tda19988_register_write(priv, REG_TX3, 39);
624
625 /* if necessary, disable multi-master */
626 if (priv->revision == TDA19989)
627 tda19988_register_set(priv, REG_I2C_MASTER, I2C_MASTER_DIS_MM);
628
629 dm_i2c_reg_write(priv->cec_chip, REG_CEC_FRO_IM_CLK_CTRL,
630 CEC_FRO_IM_CLK_CTRL_GHOST_DIS |
631 CEC_FRO_IM_CLK_CTRL_IMCLK_SEL);
632 /* ensure interrupts are disabled */
633 dm_i2c_reg_write(priv->cec_chip, REG_CEC_RXSHPDINTENA, 0);
634 /* clear pending interrupts */
635 dm_i2c_reg_read(priv->cec_chip, REG_CEC_RXSHPDINT);
636 tda19988_register_read(priv, REG_INT_FLAGS_0);
637 tda19988_register_read(priv, REG_INT_FLAGS_1);
638 tda19988_register_read(priv, REG_INT_FLAGS_2);
639
640 /* enable EDID read irq */
641 tda19988_register_set(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
642
643 return 0;
644}
645
646U_BOOT_DRIVER(tda19988) = {
647 .name = "tda19988",
648 .id = UCLASS_DISPLAY,
649 .of_match = tda19988_ids,
650 .ops = &tda19988_ops,
651 .probe = tda19988_probe,
652 .priv_auto_alloc_size = sizeof(struct tda19988_priv),
653};