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b08a0a4b3a
The TMU used on iMX93 is IP revision 2.1 which is different with previous revision used on iMX8MQ. So add a new FLAG V4 for this revision to distinguish the operations. Reviewed-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Ye Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
667 lines
18 KiB
C
667 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2017~2020 NXP
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*
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*/
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#include <config.h>
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#include <common.h>
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#include <asm/global_data.h>
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#include <asm/io.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/sys_proto.h>
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#include <dm.h>
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#include <dm/device_compat.h>
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#include <dm/device-internal.h>
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#include <dm/device.h>
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#include <errno.h>
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#include <fuse.h>
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#include <linux/delay.h>
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#include <malloc.h>
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#include <thermal.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define SITES_MAX 16
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#define FLAGS_VER2 0x1
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#define FLAGS_VER3 0x2
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#define FLAGS_VER4 0x4
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#define TMR_DISABLE 0x0
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#define TMR_ME 0x80000000
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#define TMR_ALPF 0x0c000000
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#define TMTMIR_DEFAULT 0x00000002
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#define TIER_DISABLE 0x0
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#define TER_EN 0x80000000
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#define TER_ADC_PD 0x40000000
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#define TER_ALPF 0x3
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/*
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* i.MX TMU Registers
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*/
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struct imx_tmu_site_regs {
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u32 tritsr; /* Immediate Temperature Site Register */
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u32 tratsr; /* Average Temperature Site Register */
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u8 res0[0x8];
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};
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struct imx_tmu_regs {
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u32 tmr; /* Mode Register */
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u32 tsr; /* Status Register */
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u32 tmtmir; /* Temperature measurement interval Register */
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u8 res0[0x14];
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u32 tier; /* Interrupt Enable Register */
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u32 tidr; /* Interrupt Detect Register */
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u32 tiscr; /* Interrupt Site Capture Register */
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u32 ticscr; /* Interrupt Critical Site Capture Register */
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u8 res1[0x10];
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u32 tmhtcrh; /* High Temperature Capture Register */
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u32 tmhtcrl; /* Low Temperature Capture Register */
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u8 res2[0x8];
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u32 tmhtitr; /* High Temperature Immediate Threshold */
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u32 tmhtatr; /* High Temperature Average Threshold */
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u32 tmhtactr; /* High Temperature Average Crit Threshold */
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u8 res3[0x24];
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u32 ttcfgr; /* Temperature Configuration Register */
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u32 tscfgr; /* Sensor Configuration Register */
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u8 res4[0x78];
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struct imx_tmu_site_regs site[SITES_MAX];
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u8 res5[0x9f8];
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u32 ipbrr0; /* IP Block Revision Register 0 */
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u32 ipbrr1; /* IP Block Revision Register 1 */
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u8 res6[0x310];
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u32 ttr0cr; /* Temperature Range 0 Control Register */
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u32 ttr1cr; /* Temperature Range 1 Control Register */
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u32 ttr2cr; /* Temperature Range 2 Control Register */
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u32 ttr3cr; /* Temperature Range 3 Control Register */
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};
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struct imx_tmu_regs_v4 {
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u32 tmr; /* Mode Register */
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u32 tsr; /* Status Register */
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u32 tmsr; /* Monitor Site Register */
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u32 tmtmir; /* Temperature measurement interval Register */
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u8 res0[0x10];
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u32 tier; /* Interrupt Enable Register */
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u32 tidr; /* Interrupt Detect Register */
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u8 res1[0x8];
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u32 tiiscr; /* Interrupt Immediate Site Capture Register */
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u32 tiascr; /* Interrupt Average Site Capture Register */
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u32 ticscr; /* Interrupt Critical Site Capture Register */
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u8 res2[0x4];
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u32 tmhtcr; /* Monitor High Temperature Capture Register */
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u32 tmltcr; /* MonitorLow Temperature Capture Register */
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u32 tmrtrcr; /* Monitor Rising Temperature Rate Capture Register */
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u32 tmftrcr; /* Monitor Falling Temperature Rate Capture Register */
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u32 tmhtitr; /* Monitor High Temperature Immediate Threshold */
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u32 tmhtatr; /* Monitor High Temperature Average Threshold */
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u32 tmhtactr; /* Monitor High Temperature Average Crit Threshold */
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u8 res3[0x4];
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u32 tmltitr; /* Monitor Low Temperature Immediate Threshold */
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u32 tmltatr; /* Monitor Low Temperature Average Threshold */
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u32 tmltactr; /* Monitor Low Temperature Average Crit Threshold */
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u8 res4[0x4];
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u32 tmrtrctr; /* Monitor Rising Temperature Rate Critical Threshold Register */
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u32 tmftrctr; /* Monitor Falling Temperature Rate Critical Threshold Register */
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u8 res5[0x8];
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u32 ttcfgr; /* Temperature Configuration Register */
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u32 tscfgr; /* Sensor Configuration Register */
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u8 res6[0x78];
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u32 tritsr0; /* Immediate Temperature Site Register */
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u32 tratsr0; /* Average Temperature Site Register */
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u8 res7[0xdf8];
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u32 tcmcfg; /* Central Module Configuration */
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u8 res8[0xc];
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u32 ttrcr[16]; /* Temperature Range Control Register */
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};
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struct imx_tmu_regs_v2 {
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u32 ter; /* TMU enable Register */
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u32 tsr; /* Status Register */
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u32 tier; /* Interrupt enable register */
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u32 tidr; /* Interrupt detect register */
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u32 tmhtitr; /* Monitor high temperature immediate threshold register */
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u32 tmhtatr; /* Monitor high temperature average threshold register */
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u32 tmhtactr; /* TMU monitor high temperature average critical threshold register */
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u32 tscr; /* Sensor value capture register */
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u32 tritsr; /* Report immediate temperature site register 0 */
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u32 tratsr; /* Report average temperature site register 0 */
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u32 tasr; /* Amplifier setting register */
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u32 ttmc; /* Test MUX control */
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u32 tcaliv;
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};
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struct imx_tmu_regs_v3 {
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u32 ter; /* TMU enable Register */
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u32 tps; /* Status Register */
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u32 tier; /* Interrupt enable register */
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u32 tidr; /* Interrupt detect register */
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u32 tmhtitr; /* Monitor high temperature immediate threshold register */
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u32 tmhtatr; /* Monitor high temperature average threshold register */
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u32 tmhtactr; /* TMU monitor high temperature average critical threshold register */
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u32 tscr; /* Sensor value capture register */
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u32 tritsr; /* Report immediate temperature site register 0 */
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u32 tratsr; /* Report average temperature site register 0 */
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u32 tasr; /* Amplifier setting register */
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u32 ttmc; /* Test MUX control */
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u32 tcaliv0;
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u32 tcaliv1;
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u32 tcaliv_m40;
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u32 trim;
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};
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union tmu_regs {
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struct imx_tmu_regs regs_v1;
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struct imx_tmu_regs_v2 regs_v2;
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struct imx_tmu_regs_v3 regs_v3;
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struct imx_tmu_regs_v4 regs_v4;
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};
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struct imx_tmu_plat {
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int critical;
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int alert;
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int polling_delay;
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int id;
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bool zone_node;
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union tmu_regs *regs;
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};
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static int read_temperature(struct udevice *dev, int *temp)
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{
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struct imx_tmu_plat *pdata = dev_get_plat(dev);
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ulong drv_data = dev_get_driver_data(dev);
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u32 val;
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u32 retry = 10;
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u32 valid = 0;
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do {
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mdelay(100);
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retry--;
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if (drv_data & FLAGS_VER3) {
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val = readl(&pdata->regs->regs_v3.tritsr);
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valid = val & (1 << (30 + pdata->id));
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} else if (drv_data & FLAGS_VER2) {
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val = readl(&pdata->regs->regs_v2.tritsr);
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/*
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* Check if TEMP is in valid range, the V bit in TRITSR
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* only reflects the RAW uncalibrated data
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*/
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valid = ((val & 0xff) < 10 || (val & 0xff) > 125) ? 0 : 1;
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} else if (drv_data & FLAGS_VER4) {
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val = readl(&pdata->regs->regs_v4.tritsr0);
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valid = val & 0x80000000;
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} else {
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val = readl(&pdata->regs->regs_v1.site[pdata->id].tritsr);
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valid = val & 0x80000000;
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}
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} while (!valid && retry > 0);
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if (retry > 0) {
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if (drv_data & FLAGS_VER3) {
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val = (val >> (pdata->id * 16)) & 0xff;
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if (val & 0x80) /* Negative */
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val = (~(val & 0x7f) + 1);
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*temp = val;
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if (*temp < -40 || *temp > 125) /* Check the range */
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return -EINVAL;
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*temp *= 1000;
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} else if (drv_data & FLAGS_VER4) {
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*temp = (val & 0x1ff) * 1000;
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if (val & 0x200)
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*temp += 500;
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/* Convert Kelvin to Celsius */
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*temp -= 273000;
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} else {
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*temp = (val & 0xff) * 1000;
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}
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} else {
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return -EINVAL;
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}
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return 0;
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}
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int imx_tmu_get_temp(struct udevice *dev, int *temp)
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{
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struct imx_tmu_plat *pdata = dev_get_plat(dev);
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int cpu_tmp = 0;
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int ret;
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ret = read_temperature(dev, &cpu_tmp);
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if (ret)
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return ret;
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while (cpu_tmp >= pdata->alert) {
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dev_info(dev, "CPU Temperature (%dC) has beyond alert (%dC), close to critical (%dC) waiting...\n",
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cpu_tmp, pdata->alert, pdata->critical);
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mdelay(pdata->polling_delay);
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ret = read_temperature(dev, &cpu_tmp);
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if (ret)
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return ret;
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}
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*temp = cpu_tmp / 1000;
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return 0;
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}
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static const struct dm_thermal_ops imx_tmu_ops = {
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.get_temp = imx_tmu_get_temp,
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};
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static int imx_tmu_calibration(struct udevice *dev)
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{
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int i, val, len, ret;
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int index;
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u32 range[4];
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const fdt32_t *calibration;
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struct imx_tmu_plat *pdata = dev_get_plat(dev);
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ulong drv_data = dev_get_driver_data(dev);
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dev_dbg(dev, "%s\n", __func__);
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if (drv_data & (FLAGS_VER2 | FLAGS_VER3))
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return 0;
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if (drv_data & FLAGS_VER4) {
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calibration = dev_read_prop(dev, "fsl,tmu-calibration", &len);
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if (!calibration || len % 8 || len > 128) {
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printf("TMU: invalid calibration data.\n");
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return -ENODEV;
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}
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for (i = 0; i < len; i += 8, calibration += 2) {
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index = i / 8;
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writel(index, &pdata->regs->regs_v4.ttcfgr);
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val = fdt32_to_cpu(*calibration);
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writel(val, &pdata->regs->regs_v4.tscfgr);
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val = fdt32_to_cpu(*(calibration + 1));
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writel((1 << 31) | val, &pdata->regs->regs_v4.ttrcr[index]);
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}
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return 0;
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}
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ret = dev_read_u32_array(dev, "fsl,tmu-range", range, 4);
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if (ret) {
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dev_err(dev, "TMU: missing calibration range, ret = %d.\n", ret);
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return ret;
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}
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/* Init temperature range registers */
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writel(range[0], &pdata->regs->regs_v1.ttr0cr);
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writel(range[1], &pdata->regs->regs_v1.ttr1cr);
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writel(range[2], &pdata->regs->regs_v1.ttr2cr);
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writel(range[3], &pdata->regs->regs_v1.ttr3cr);
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calibration = dev_read_prop(dev, "fsl,tmu-calibration", &len);
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if (!calibration || len % 8) {
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dev_err(dev, "TMU: invalid calibration data.\n");
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return -ENODEV;
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}
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for (i = 0; i < len; i += 8, calibration += 2) {
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val = fdt32_to_cpu(*calibration);
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writel(val, &pdata->regs->regs_v1.ttcfgr);
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val = fdt32_to_cpu(*(calibration + 1));
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writel(val, &pdata->regs->regs_v1.tscfgr);
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}
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return 0;
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}
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#if defined(CONFIG_IMX8MM) || defined(CONFIG_IMX8MN)
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static void imx_tmu_mx8mm_mx8mn_init(struct udevice *dev)
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{
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/* Load TCALIV and TASR from fuses */
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struct ocotp_regs *ocotp =
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(struct ocotp_regs *)OCOTP_BASE_ADDR;
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struct fuse_bank *bank = &ocotp->bank[3];
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struct fuse_bank3_regs *fuse =
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(struct fuse_bank3_regs *)bank->fuse_regs;
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struct imx_tmu_plat *pdata = dev_get_plat(dev);
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void *reg_base = (void *)pdata->regs;
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u32 tca_rt, tca_hr, tca_en;
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u32 buf_vref, buf_slope;
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tca_rt = fuse->ana0 & 0xFF;
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tca_hr = (fuse->ana0 & 0xFF00) >> 8;
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tca_en = (fuse->ana0 & 0x2000000) >> 25;
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buf_vref = (fuse->ana0 & 0x1F00000) >> 20;
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buf_slope = (fuse->ana0 & 0xF0000) >> 16;
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writel(buf_vref | (buf_slope << 16), (ulong)reg_base + 0x28);
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writel((tca_en << 31) | (tca_hr << 16) | tca_rt,
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(ulong)reg_base + 0x30);
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}
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#else
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static inline void imx_tmu_mx8mm_mx8mn_init(struct udevice *dev) { }
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#endif
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#if defined(CONFIG_IMX8MP)
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static void imx_tmu_mx8mp_init(struct udevice *dev)
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{
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/* Load TCALIV0/1/m40 and TRIM from fuses */
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struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
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struct fuse_bank *bank = &ocotp->bank[38];
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struct fuse_bank38_regs *fuse =
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(struct fuse_bank38_regs *)bank->fuse_regs;
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struct fuse_bank *bank2 = &ocotp->bank[39];
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struct fuse_bank39_regs *fuse2 =
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(struct fuse_bank39_regs *)bank2->fuse_regs;
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struct imx_tmu_plat *pdata = dev_get_plat(dev);
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void *reg_base = (void *)pdata->regs;
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u32 buf_vref, buf_slope, bjt_cur, vlsb, bgr;
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u32 reg;
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u32 tca40[2], tca25[2], tca105[2];
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/* For blank sample */
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if (!fuse->ana_trim2 && !fuse->ana_trim3 &&
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!fuse->ana_trim4 && !fuse2->ana_trim5) {
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/* Use a default 25C binary codes */
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tca25[0] = 1596;
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tca25[1] = 1596;
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writel(tca25[0], (ulong)reg_base + 0x30);
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writel(tca25[1], (ulong)reg_base + 0x34);
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return;
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}
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buf_vref = (fuse->ana_trim2 & 0xc0) >> 6;
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buf_slope = (fuse->ana_trim2 & 0xF00) >> 8;
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bjt_cur = (fuse->ana_trim2 & 0xF000) >> 12;
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bgr = (fuse->ana_trim2 & 0xF0000) >> 16;
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vlsb = (fuse->ana_trim2 & 0xF00000) >> 20;
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writel(buf_vref | (buf_slope << 16), (ulong)reg_base + 0x28);
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reg = (bgr << 28) | (bjt_cur << 20) | (vlsb << 12) | (1 << 7);
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writel(reg, (ulong)reg_base + 0x3c);
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tca40[0] = (fuse->ana_trim3 & 0xFFF0000) >> 16;
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tca25[0] = (fuse->ana_trim3 & 0xF0000000) >> 28;
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tca25[0] |= ((fuse->ana_trim4 & 0xFF) << 4);
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tca105[0] = (fuse->ana_trim4 & 0xFFF00) >> 8;
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tca40[1] = (fuse->ana_trim4 & 0xFFF00000) >> 20;
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tca25[1] = fuse2->ana_trim5 & 0xFFF;
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tca105[1] = (fuse2->ana_trim5 & 0xFFF000) >> 12;
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/* use 25c for 1p calibration */
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writel(tca25[0] | (tca105[0] << 16), (ulong)reg_base + 0x30);
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writel(tca25[1] | (tca105[1] << 16), (ulong)reg_base + 0x34);
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writel(tca40[0] | (tca40[1] << 16), (ulong)reg_base + 0x38);
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}
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#else
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static inline void imx_tmu_mx8mp_init(struct udevice *dev) { }
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#endif
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static inline void imx_tmu_mx93_init(struct udevice *dev) { }
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static void imx_tmu_arch_init(struct udevice *dev)
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{
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if (is_imx8mm() || is_imx8mn())
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imx_tmu_mx8mm_mx8mn_init(dev);
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else if (is_imx8mp())
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imx_tmu_mx8mp_init(dev);
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else if (is_imx93())
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imx_tmu_mx93_init(dev);
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else
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dev_err(dev, "Unsupported SoC, TMU calibration not loaded!\n");
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}
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static void imx_tmu_init(struct udevice *dev)
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{
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struct imx_tmu_plat *pdata = dev_get_plat(dev);
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ulong drv_data = dev_get_driver_data(dev);
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dev_dbg(dev, "%s\n", __func__);
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if (drv_data & FLAGS_VER3) {
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/* Disable monitoring */
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writel(0x0, &pdata->regs->regs_v3.ter);
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/* Disable interrupt, using polling instead */
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writel(0x0, &pdata->regs->regs_v3.tier);
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} else if (drv_data & FLAGS_VER2) {
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/* Disable monitoring */
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writel(0x0, &pdata->regs->regs_v2.ter);
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/* Disable interrupt, using polling instead */
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writel(0x0, &pdata->regs->regs_v2.tier);
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} else if (drv_data & FLAGS_VER4) {
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/* Disable monitoring */
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writel(TMR_DISABLE, &pdata->regs->regs_v4.tmr);
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/* Disable interrupt, using polling instead */
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|
writel(TIER_DISABLE, &pdata->regs->regs_v4.tier);
|
|
|
|
/* Set update_interval */
|
|
writel(TMTMIR_DEFAULT, &pdata->regs->regs_v4.tmtmir);
|
|
} else {
|
|
/* Disable monitoring */
|
|
writel(TMR_DISABLE, &pdata->regs->regs_v1.tmr);
|
|
|
|
/* Disable interrupt, using polling instead */
|
|
writel(TIER_DISABLE, &pdata->regs->regs_v1.tier);
|
|
|
|
/* Set update_interval */
|
|
writel(TMTMIR_DEFAULT, &pdata->regs->regs_v1.tmtmir);
|
|
}
|
|
|
|
imx_tmu_arch_init(dev);
|
|
}
|
|
|
|
static int imx_tmu_enable_msite(struct udevice *dev)
|
|
{
|
|
struct imx_tmu_plat *pdata = dev_get_plat(dev);
|
|
ulong drv_data = dev_get_driver_data(dev);
|
|
u32 reg;
|
|
|
|
dev_dbg(dev, "%s\n", __func__);
|
|
|
|
if (!pdata->regs)
|
|
return -EIO;
|
|
|
|
if (drv_data & FLAGS_VER3) {
|
|
reg = readl(&pdata->regs->regs_v3.ter);
|
|
reg &= ~TER_EN;
|
|
writel(reg, &pdata->regs->regs_v3.ter);
|
|
|
|
writel(pdata->id << 30, &pdata->regs->regs_v3.tps);
|
|
|
|
reg &= ~TER_ALPF;
|
|
reg |= 0x1;
|
|
reg &= ~TER_ADC_PD;
|
|
writel(reg, &pdata->regs->regs_v3.ter);
|
|
|
|
/* Enable monitor */
|
|
reg |= TER_EN;
|
|
writel(reg, &pdata->regs->regs_v3.ter);
|
|
} else if (drv_data & FLAGS_VER2) {
|
|
reg = readl(&pdata->regs->regs_v2.ter);
|
|
reg &= ~TER_EN;
|
|
writel(reg, &pdata->regs->regs_v2.ter);
|
|
|
|
reg &= ~TER_ALPF;
|
|
reg |= 0x1;
|
|
writel(reg, &pdata->regs->regs_v2.ter);
|
|
|
|
/* Enable monitor */
|
|
reg |= TER_EN;
|
|
writel(reg, &pdata->regs->regs_v2.ter);
|
|
} else if (drv_data & FLAGS_VER4) {
|
|
reg = readl(&pdata->regs->regs_v4.tcmcfg);
|
|
reg |= (1 << 30) | (1 << 28);
|
|
reg &= ~0xF000; /* set SAR clk = IPG clk /16 */
|
|
writel(reg, &pdata->regs->regs_v4.tcmcfg);
|
|
|
|
/* Set ALPF*/
|
|
reg = readl(&pdata->regs->regs_v4.tmr);
|
|
reg |= TMR_ALPF;
|
|
writel(reg, &pdata->regs->regs_v4.tmr);
|
|
|
|
writel(1, &pdata->regs->regs_v4.tmsr);
|
|
|
|
/* Enable ME */
|
|
reg |= TMR_ME;
|
|
writel(reg, &pdata->regs->regs_v4.tmr);
|
|
} else {
|
|
/* Clear the ME before setting MSITE and ALPF*/
|
|
reg = readl(&pdata->regs->regs_v1.tmr);
|
|
reg &= ~TMR_ME;
|
|
writel(reg, &pdata->regs->regs_v1.tmr);
|
|
|
|
reg |= 1 << (15 - pdata->id);
|
|
reg |= TMR_ALPF;
|
|
writel(reg, &pdata->regs->regs_v1.tmr);
|
|
|
|
/* Enable ME */
|
|
reg |= TMR_ME;
|
|
writel(reg, &pdata->regs->regs_v1.tmr);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int imx_tmu_bind(struct udevice *dev)
|
|
{
|
|
struct imx_tmu_plat *pdata = dev_get_plat(dev);
|
|
int ret;
|
|
ofnode node, offset;
|
|
const char *name;
|
|
const void *prop;
|
|
int minc, maxc;
|
|
|
|
dev_dbg(dev, "%s\n", __func__);
|
|
|
|
prop = dev_read_prop(dev, "compatible", NULL);
|
|
if (!prop)
|
|
return 0;
|
|
|
|
pdata->zone_node = 1;
|
|
/* default alert/crit temps based on temp grade */
|
|
get_cpu_temp_grade(&minc, &maxc);
|
|
pdata->critical = maxc * 1000;
|
|
pdata->alert = (maxc - 10) * 1000;
|
|
|
|
node = ofnode_path("/thermal-zones");
|
|
ofnode_for_each_subnode(offset, node) {
|
|
/* Bind the subnode to this driver */
|
|
name = ofnode_get_name(offset);
|
|
|
|
ret = device_bind_with_driver_data(dev, dev->driver, name,
|
|
dev->driver_data, offset,
|
|
NULL);
|
|
if (ret)
|
|
dev_err(dev, "Error binding driver: %d\n", ret);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int imx_tmu_parse_fdt(struct udevice *dev)
|
|
{
|
|
struct imx_tmu_plat *pdata = dev_get_plat(dev), *p_parent_data;
|
|
struct ofnode_phandle_args args;
|
|
ofnode trips_np;
|
|
int ret;
|
|
|
|
dev_dbg(dev, "%s\n", __func__);
|
|
|
|
if (pdata->zone_node) {
|
|
pdata->regs = (union tmu_regs *)dev_read_addr_ptr(dev);
|
|
|
|
if (!pdata->regs)
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
p_parent_data = dev_get_plat(dev->parent);
|
|
if (p_parent_data->zone_node)
|
|
pdata->regs = p_parent_data->regs;
|
|
|
|
ret = dev_read_phandle_with_args(dev, "thermal-sensors",
|
|
"#thermal-sensor-cells",
|
|
0, 0, &args);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (!ofnode_equal(args.node, dev_ofnode(dev->parent)))
|
|
return -EFAULT;
|
|
|
|
if (args.args_count >= 1)
|
|
pdata->id = args.args[0];
|
|
else
|
|
pdata->id = 0;
|
|
|
|
dev_dbg(dev, "args.args_count %d, id %d\n", args.args_count, pdata->id);
|
|
|
|
pdata->polling_delay = dev_read_u32_default(dev, "polling-delay", 1000);
|
|
|
|
trips_np = ofnode_path("/thermal-zones/cpu-thermal/trips");
|
|
ofnode_for_each_subnode(trips_np, trips_np) {
|
|
const char *type;
|
|
|
|
type = ofnode_get_property(trips_np, "type", NULL);
|
|
if (!type)
|
|
continue;
|
|
if (!strcmp(type, "critical"))
|
|
pdata->critical = ofnode_read_u32_default(trips_np, "temperature", 85);
|
|
else if (strcmp(type, "passive") == 0)
|
|
pdata->alert = ofnode_read_u32_default(trips_np, "temperature", 80);
|
|
else
|
|
continue;
|
|
}
|
|
|
|
dev_dbg(dev, "id %d polling_delay %d, critical %d, alert %d\n",
|
|
pdata->id, pdata->polling_delay, pdata->critical, pdata->alert);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int imx_tmu_probe(struct udevice *dev)
|
|
{
|
|
struct imx_tmu_plat *pdata = dev_get_plat(dev);
|
|
int ret;
|
|
|
|
ret = imx_tmu_parse_fdt(dev);
|
|
if (ret) {
|
|
dev_err(dev, "Error in parsing TMU FDT %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
if (pdata->zone_node) {
|
|
imx_tmu_init(dev);
|
|
imx_tmu_calibration(dev);
|
|
imx_tmu_enable_msite(dev);
|
|
} else {
|
|
imx_tmu_enable_msite(dev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id imx_tmu_ids[] = {
|
|
{ .compatible = "fsl,imx8mq-tmu", },
|
|
{ .compatible = "fsl,imx8mm-tmu", .data = FLAGS_VER2, },
|
|
{ .compatible = "fsl,imx8mp-tmu", .data = FLAGS_VER3, },
|
|
{ .compatible = "fsl,imx93-tmu", .data = FLAGS_VER4, },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(imx_tmu) = {
|
|
.name = "imx_tmu",
|
|
.id = UCLASS_THERMAL,
|
|
.ops = &imx_tmu_ops,
|
|
.of_match = imx_tmu_ids,
|
|
.bind = imx_tmu_bind,
|
|
.probe = imx_tmu_probe,
|
|
.plat_auto = sizeof(struct imx_tmu_plat),
|
|
.flags = DM_FLAG_PRE_RELOC,
|
|
};
|