rockchip/*: refactor edp driver
rk3288 and rk3399 use same edp IP, move soc specific setting to soc/display, and move edp driver to common, so rk3399 can reuse this driver. BUG=chrome-os-partner:52460 BRANCH=none TEST= test on jerry and mighty, edp panel can work Change-Id: Ie3f3e8468b2323994af8a002413bf93b3edc8026 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 64bb4b2c7ed373d9730c9aa0b0896a32164fc7ee Original-Change-Id: Ie5c15a81849a02d1c0457e36ed00fbe2d47961fb Original-Signed-off-by: Lin Huang <hl@rock-chips.com> Original-Reviewed-on: https://chromium-review.googlesource.com/340504 Original-Commit-Ready: Vadim Bendebury <vbendeb@chromium.org> Original-Tested-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/14725 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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@ -17,18 +17,16 @@
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#include <assert.h>
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#include <console/console.h>
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#include <delay.h>
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#include <device/device.h>
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#include <edid.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <soc/addressmap.h>
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#include <soc/display.h>
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#include <soc/edp.h>
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#include <soc/grf.h>
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#include <soc/vop.h>
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#include <timer.h>
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#include "chip.h"
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#define edp_debug(x...) do {if (0) printk(BIOS_DEBUG, x); } while (0)
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static struct rk_edp rk_edp;
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@ -285,12 +283,14 @@ static int rk_edp_dpcd_transfer(struct rk_edp *edp,
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return 0;
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}
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static int rk_edp_dpcd_read(struct rk_edp *edp, u32 addr, u8 *values, size_t size)
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static int rk_edp_dpcd_read(struct rk_edp *edp, u32 addr,
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u8 *values, size_t size)
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{
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return rk_edp_dpcd_transfer(edp, addr, values, size, DPCD_READ);
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}
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static int rk_edp_dpcd_write(struct rk_edp *edp, u32 addr, u8 *values, size_t size)
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static int rk_edp_dpcd_write(struct rk_edp *edp, u32 addr,
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u8 *values, size_t size)
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{
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return rk_edp_dpcd_transfer(edp, addr, values, size, DPCD_WRITE);
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}
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@ -361,6 +361,7 @@ static u8 edp_get_lane_status(const u8 *link_status, int lane)
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int i = DPCD_LANE0_1_STATUS + (lane >> 1);
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int s = (lane & 1) * 4;
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u8 l = edp_link_status(link_status, i);
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return (l >> s) & 0xf;
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}
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@ -549,8 +550,11 @@ static int rk_edp_link_train_ce(struct rk_edp *edp)
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channel_eq = 0;
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for (tries = 0; tries < 5; tries++) {
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rk_edp_set_link_training(edp, edp->train_set);
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udelay(400);
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rk_edp_dpcd_write(edp, DPCD_TRAINING_LANE0_SET,
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edp->train_set,
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edp->link_train.lane_count);
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udelay(400);
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if (rk_edp_dpcd_read_link_status(edp, status) < 0) {
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printk(BIOS_ERR, "displayport link status failed\n");
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return -1;
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@ -700,7 +704,7 @@ static int rk_edp_read_bytes_from_i2c(struct rk_edp *edp,
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/*
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* If Rx sends defer, Tx sends only reads
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* request without sending addres
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* request without sending address
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*/
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if (!defer)
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retval = rk_edp_select_i2c_device(edp,
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@ -946,16 +950,16 @@ static int rockchip_edp_get_plug_in_status(struct rk_edp *edp)
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/*
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* support edp HPD function
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* some hardware version do not support edp hdp,
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* we use 200ms to try to get the hpd single now,
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* if we can not get edp hpd single, it will delay 200ms,
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* we use 360ms to try to get the hpd single now,
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* if we can not get edp hpd single, it will delay 360ms,
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* also meet the edp power timing request, to compatible
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* all of the hardware version
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*/
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static void rockchip_edp_wait_hpd(struct rk_edp *edp)
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static void rk_edp_wait_hpd(struct rk_edp *edp)
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{
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struct stopwatch hpd;
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stopwatch_init_msecs_expire(&hpd, 200);
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stopwatch_init_msecs_expire(&hpd, 360);
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do {
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if (rockchip_edp_get_plug_in_status(edp))
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return;
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@ -998,20 +1002,11 @@ int rk_edp_enable(void)
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return ret;
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}
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void rk_edp_init(u32 vop_id)
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void rk_edp_init(void)
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{
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u32 val;
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rk_edp.regs = (struct rk_edp_regs *)EDP_BASE;
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rk_edp.regs = (struct rk3288_edp_regs *)EDP_BASE;
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/* grf_edp_ref_clk_sel: from internal 24MHz or 27MHz clock */
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write32(&rk3288_grf->soc_con12, RK_SETBITS(1 << 4));
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/* select epd signal from vop0 or vop1 */
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val = (vop_id == 1) ? RK_SETBITS(1 << 5) : RK_CLRBITS(1 << 5);
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write32(&rk3288_grf->soc_con6, val);
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rockchip_edp_wait_hpd(&rk_edp);
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rk_edp_wait_hpd(&rk_edp);
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rk_edp_init_refclk(&rk_edp);
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rk_edp_init_interrupt(&rk_edp);
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@ -13,13 +13,13 @@
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* GNU General Public License for more details.
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*/
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#ifndef __RK32_DP_H
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#define __RK32_DP_H
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#ifndef __RK_DP_H
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#define __RK_DP_H
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#include <edid.h>
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#include <stdlib.h>
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struct rk3288_edp_regs {
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struct rk_edp_regs {
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u8 res0[0x10];
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u32 dp_tx_version;
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u8 res1[0x4];
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@ -165,7 +165,7 @@ struct rk3288_edp_regs {
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u8 res30[0x10];
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u32 pll_reg_5;
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};
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check_member(rk3288_edp_regs, pll_reg_5, 0xa00);
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check_member(rk_edp_regs, pll_reg_5, 0xa00);
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/* func_en_1 */
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#define VID_CAP_FUNC_EN_N (0x1 << 6)
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@ -243,10 +243,6 @@ check_member(rk3288_edp_regs, pll_reg_5, 0xa00);
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#define PD_CH1 (0x1 << 1)
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#define PD_CH0 (0x1 << 0)
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/* pll_reg_1 */
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#define REF_CLK_24M (0x1 << 1)
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#define REF_CLK_27M (0x0 << 1)
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/* line_map */
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#define LANE3_MAP_LOGIC_LANE_0 (0x0 << 6)
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#define LANE3_MAP_LOGIC_LANE_1 (0x1 << 6)
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@ -650,13 +646,12 @@ struct link_train {
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};
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struct rk_edp {
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struct rk3288_edp_regs *regs;
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struct rk_edp_regs *regs;
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struct link_train link_train;
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u8 train_set[4];
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};
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int rk_edp_enable(void);
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void rk_edp_init(u32 vop_id);
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void rk_edp_init(void);
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int rk_edp_get_edid(struct edid *edid);
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#endif
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@ -68,7 +68,7 @@ ramstage-y += gpio.c
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ramstage-y += ../common/rk808.c
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ramstage-y += ../common/pwm.c
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ramstage-y += vop.c
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ramstage-y += edp.c
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ramstage-y += ../common/edp.c
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ramstage-y += hdmi.c
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ramstage-y += display.c
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ramstage-$(CONFIG_DRIVERS_UART) += ../common/uart.c
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@ -39,6 +39,7 @@ void rk_display_init(device_t dev, u32 lcdbase,
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unsigned long fb_size)
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{
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struct edid edid;
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uint32_t val;
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struct soc_rockchip_rk3288_config *conf = dev->chip_info;
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uint32_t lower = ALIGN_DOWN(lcdbase, MiB);
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uint32_t upper = ALIGN_UP(lcdbase + fb_size, MiB);
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printk(BIOS_DEBUG, "Attempting to setup EDP display.\n");
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rkclk_configure_edp();
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rkclk_configure_vop_aclk(conf->vop_id, 192 * MHz);
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rk_edp_init(conf->vop_id);
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/* grf_edp_ref_clk_sel: from internal 24MHz or 27MHz clock */
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write32(&rk3288_grf->soc_con12, RK_SETBITS(1 << 4));
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/* select epd signal from vop0 or vop1 */
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val = (conf->vop_id == 1) ? RK_SETBITS(1 << 5) :
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RK_CLRBITS(1 << 5);
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write32(&rk3288_grf->soc_con6, val);
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rk_edp_init();
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if (rk_edp_get_edid(&edid) == 0) {
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detected_mode = VOP_MODE_EDP;
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@ -16,6 +16,13 @@
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#ifndef __SOC_ROCKCHIP_RK3288_DISPLAY_H__
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#define __SOC_ROCKCHIP_RK3288_DISPLAY_H__
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/*
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* this bit select edp phy pll, this bit define different between
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* rk3288 and rk3399 in edp phy, so implement it in soc specific code
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*/
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#define REF_CLK_24M (0x0 << 0)
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#define REF_CLK_27M (0x1 << 0)
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void rk_display_init(device_t dev, u32 lcdbase,
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unsigned long fb_size);
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