/*
* Copyright (c) 2016 - 2020, Broadcom
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <common/debug.h>
#include <drivers/delay_timer.h>
#include <lib/mmio.h>
#include <dmu.h>
#include <ihost_pm.h>
#include <platform_def.h>
#define CDRU_CCN_REGISTER_CONTROL_1__D2XS_PD_IHOST1 2
#define CDRU_CCN_REGISTER_CONTROL_1__D2XS_PD_IHOST2 1
#define CDRU_CCN_REGISTER_CONTROL_1__D2XS_PD_IHOST3 0
#define CDRU_MISC_RESET_CONTROL__CDRU_IH1_RESET 9
#define CDRU_MISC_RESET_CONTROL__CDRU_IH2_RESET 8
#define CDRU_MISC_RESET_CONTROL__CDRU_IH3_RESET 7
#define A72_CRM_SOFTRESETN_0 0x480
#define A72_CRM_SOFTRESETN_1 0x484
#define A72_CRM_DOMAIN_4_CONTROL 0x810
#define A72_CRM_DOMAIN_4_CONTROL__DOMAIN_4_ISO_DFT 3
#define A72_CRM_DOMAIN_4_CONTROL__DOMAIN_4_ISO_MEM 6
#define A72_CRM_DOMAIN_4_CONTROL__DOMAIN_4_ISO_I_O 0
#define A72_CRM_SUBSYSTEM_MEMORY_CONTROL_3 0xB4C
#define MEMORY_PDA_HI_SHIFT 0x0
#define A72_CRM_PLL_PWR_ON 0x70
#define A72_CRM_PLL_PWR_ON__PLL0_ISO_PLLOUT 4
#define A72_CRM_PLL_PWR_ON__PLL0_PWRON_LDO 1
#define A72_CRM_PLL_PWR_ON__PLL0_PWRON_PLL 0
#define A72_CRM_SUBSYSTEM_MEMORY_CONTROL_2 0xB48
#define A72_CRM_PLL_INTERRUPT_STATUS 0x8c
#define A72_CRM_PLL_INTERRUPT_STATUS__PLL0_LOCK_LOST_STATUS 8
#define A72_CRM_PLL_INTERRUPT_STATUS__PLL0_LOCK_STATUS 9
#define A72_CRM_INTERRUPT_ENABLE 0x4
#define A72_CRM_INTERRUPT_ENABLE__PLL0_INT_ENABLE 4
#define A72_CRM_PLL_INTERRUPT_ENABLE 0x88
#define A72_CRM_PLL_INTERRUPT_ENABLE__PLL0_LOCK_STATUS_INT_ENB 9
#define A72_CRM_PLL_INTERRUPT_ENABLE__PLL0_LOCK_LOST_STATUS_INT_ENB 8
#define A72_CRM_PLL0_CFG0_CTRL 0x120
#define A72_CRM_PLL0_CFG1_CTRL 0x124
#define A72_CRM_PLL0_CFG2_CTRL 0x128
#define A72_CRM_PLL0_CFG3_CTRL 0x12C
#define A72_CRM_CORE_CONFIG_DBGCTRL__DBGROMADDRV 0
#define A72_CRM_CORE_CONFIG_DBGCTRL 0xD50
#define A72_CRM_CORE_CONFIG_DBGROM_LO 0xD54
#define A72_CRM_CORE_CONFIG_DBGROM_HI 0xD58
#define A72_CRM_SUBSYSTEM_CONFIG_1__DBGL1RSTDISABLE 2
#define A72_CRM_SOFTRESETN_0__CRYSTAL26_SOFTRESETN 0
#define A72_CRM_SOFTRESETN_0__CRM_PLL0_SOFTRESETN 1
#define A72_CRM_AXI_CLK_DESC 0x304
#define A72_CRM_ACP_CLK_DESC 0x308
#define A72_CRM_ATB_CLK_DESC 0x30C
#define A72_CRM_PCLKDBG_DESC 0x310
#define A72_CRM_CLOCK_MODE_CONTROL 0x40
#define A72_CRM_CLOCK_MODE_CONTROL__CLK_CHANGE_TRIGGER 0
#define A72_CRM_CLOCK_CONTROL_0 0x200
#define A72_CRM_CLOCK_CONTROL_0__ARM_HW_SW_ENABLE_SEL 0
#define A72_CRM_CLOCK_CONTROL_0__AXI_HW_SW_ENABLE_SEL 2
#define A72_CRM_CLOCK_CONTROL_0__ACP_HW_SW_ENABLE_SEL 4
#define A72_CRM_CLOCK_CONTROL_0__ATB_HW_SW_ENABLE_SEL 6
#define A72_CRM_CLOCK_CONTROL_0__PCLKDBG_HW_SW_ENA_SEL 8
#define A72_CRM_CLOCK_CONTROL_1 0x204
#define A72_CRM_CLOCK_CONTROL_1__TMON_HW_SW_ENABLE_SEL 6
#define A72_CRM_CLOCK_CONTROL_1__APB_HW_SW_ENABLE_SEL 8
#define A72_CRM_SOFTRESETN_0__CRYSTAL26_SOFTRESETN 0
#define A72_CRM_SOFTRESETN_0__CRM_PLL0_SOFTRESETN 1
#define A72_CRM_SOFTRESETN_0__AXI_SOFTRESETN 9
#define A72_CRM_SOFTRESETN_0__ACP_SOFTRESETN 10
#define A72_CRM_SOFTRESETN_0__ATB_SOFTRESETN 11
#define A72_CRM_SOFTRESETN_0__PCLKDBG_SOFTRESETN 12
#define A72_CRM_SOFTRESETN_0__TMON_SOFTRESETN 15
#define A72_CRM_SOFTRESETN_0__L2_SOFTRESETN 3
#define A72_CRM_SOFTRESETN_1__APB_SOFTRESETN 8
/* core related regs */
#define A72_CRM_DOMAIN_0_CONTROL 0x800
#define A72_CRM_DOMAIN_0_CONTROL__DOMAIN_0_ISO_MEM 0x6
#define A72_CRM_DOMAIN_0_CONTROL__DOMAIN_0_ISO_I_O 0x0
#define A72_CRM_DOMAIN_1_CONTROL 0x804
#define A72_CRM_DOMAIN_1_CONTROL__DOMAIN_1_ISO_MEM 0x6
#define A72_CRM_DOMAIN_1_CONTROL__DOMAIN_1_ISO_I_O 0x0
#define A72_CRM_CORE_CONFIG_RVBA0_LO 0xD10
#define A72_CRM_CORE_CONFIG_RVBA0_MID 0xD14
#define A72_CRM_CORE_CONFIG_RVBA0_HI 0xD18
#define A72_CRM_CORE_CONFIG_RVBA1_LO 0xD20
#define A72_CRM_CORE_CONFIG_RVBA1_MID 0xD24
#define A72_CRM_CORE_CONFIG_RVBA1_HI 0xD28
#define A72_CRM_SUBSYSTEM_CONFIG_0 0xC80
#define A72_CRM_SUBSYSTEM_CONFIG_0__DBGPWRDUP_CFG_SHIFT 4
#define A72_CRM_SOFTRESETN_0__COREPOR0_SOFTRESETN 4
#define A72_CRM_SOFTRESETN_0__COREPOR1_SOFTRESETN 5
#define A72_CRM_SOFTRESETN_1__CORE0_SOFTRESETN 0
#define A72_CRM_SOFTRESETN_1__DEBUG0_SOFTRESETN 4
#define A72_CRM_SOFTRESETN_1__CORE1_SOFTRESETN 1
#define A72_CRM_SOFTRESETN_1__DEBUG1_SOFTRESETN 5
#define SPROC_MEMORY_BISR 0
static int cluster_power_status[PLAT_BRCM_CLUSTER_COUNT] = {CLUSTER_POWER_ON,
CLUSTER_POWER_OFF,
CLUSTER_POWER_OFF,
CLUSTER_POWER_OFF};
void ihost_power_on_cluster(u_register_t mpidr)
{
uint32_t rst, d2xs;
uint32_t cluster_id;
uint32_t ihost_base;
#if SPROC_MEMORY_BISR
uint32_t bisr, cnt;
#endif
cluster_id = MPIDR_AFFLVL1_VAL(mpidr);
uint32_t cluster0_freq_sel;
if (cluster_power_status[cluster_id] == CLUSTER_POWER_ON)
return;
cluster_power_status[cluster_id] = CLUSTER_POWER_ON;
INFO("enabling Cluster #%u\n", cluster_id);
switch (cluster_id) {
case 1:
rst = (1 << CDRU_MISC_RESET_CONTROL__CDRU_IH1_RESET);
d2xs = (1 << CDRU_CCN_REGISTER_CONTROL_1__D2XS_PD_IHOST1);
#if SPROC_MEMORY_BISR
bisr = CRMU_BISR_PDG_MASK__CRMU_BISR_IHOST1;
#endif
break;
case 2:
rst = (1 << CDRU_MISC_RESET_CONTROL__CDRU_IH2_RESET);
d2xs = (1 << CDRU_CCN_REGISTER_CONTROL_1__D2XS_PD_IHOST2);
#if SPROC_MEMORY_BISR
bisr = CRMU_BISR_PDG_MASK__CRMU_BISR_IHOST2;
#endif
break;
case 3:
rst = (1 << CDRU_MISC_RESET_CONTROL__CDRU_IH3_RESET);
d2xs = (1 << CDRU_CCN_REGISTER_CONTROL_1__D2XS_PD_IHOST3);
#if SPROC_MEMORY_BISR
bisr = CRMU_BISR_PDG_MASK__CRMU_BISR_IHOST3;
#endif
break;
default:
ERROR("Invalid cluster :%u\n", cluster_id);
return;
}
/* Releasing ihost resets */
mmio_setbits_32(CDRU_MISC_RESET_CONTROL, rst);
/* calculate cluster/ihost base address */
ihost_base = IHOST0_BASE + cluster_id * IHOST_ADDR_SPACE;
/* Remove Cluster IO isolation */
mmio_clrsetbits_32(ihost_base + A72_CRM_DOMAIN_4_CONTROL,
(1 << A72_CRM_DOMAIN_4_CONTROL__DOMAIN_4_ISO_I_O),
(1 << A72_CRM_DOMAIN_4_CONTROL__DOMAIN_4_ISO_DFT) |
(1 << A72_CRM_DOMAIN_4_CONTROL__DOMAIN_4_ISO_MEM));
/*
* Since BISR sequence requires that all cores of cluster should
* have removed I/O isolation hence doing same here.
*/
/* Remove core0 memory IO isolations */
mmio_clrsetbits_32(ihost_base + A72_CRM_DOMAIN_0_CONTROL,
(1 << A72_CRM_DOMAIN_0_CONTROL__DOMAIN_0_ISO_I_O),
(1 << A72_CRM_DOMAIN_0_CONTROL__DOMAIN_0_ISO_MEM));
/* Remove core1 memory IO isolations */
mmio_clrsetbits_32(ihost_base + A72_CRM_DOMAIN_1_CONTROL,
(1 << A72_CRM_DOMAIN_1_CONTROL__DOMAIN_1_ISO_I_O),
(1 << A72_CRM_DOMAIN_1_CONTROL__DOMAIN_1_ISO_MEM));
#if SPROC_MEMORY_BISR
mmio_setbits_32(CRMU_BISR_PDG_MASK, (1 << bisr));
if (!(mmio_read_32(CDRU_CHIP_STRAP_DATA_LSW) &
(1 << CDRU_CHIP_STRAP_DATA_LSW__BISR_BYPASS_MODE))) {
/* BISR completion would take max 2 usec */
cnt = 0;
while (cnt < 2) {
udelay(1);
if (mmio_read_32(CRMU_CHIP_OTPC_STATUS) &
(1 << CRMU_CHIP_OTPC_STATUS__OTP_BISR_LOAD_DONE))
break;
cnt++;
}
}
/* if BISR is not completed, need to be checked with ASIC team */
if (((mmio_read_32(CRMU_CHIP_OTPC_STATUS)) &
(1 << CRMU_CHIP_OTPC_STATUS__OTP_BISR_LOAD_DONE)) == 0) {
WARN("BISR did not completed and need to be addressed\n");
}
#endif
/* PLL Power up. supply is already on. Turn on PLL LDO/PWR */
mmio_write_32(ihost_base + A72_CRM_PLL_PWR_ON,
(1 << A72_CRM_PLL_PWR_ON__PLL0_ISO_PLLOUT) |
(1 << A72_CRM_PLL_PWR_ON__PLL0_PWRON_LDO) |
(1 << A72_CRM_PLL_PWR_ON__PLL0_PWRON_PLL));
/* 1us in spec; Doubling it to be safe*/
udelay(2);
/* Remove PLL output ISO */
mmio_write_32(ihost_base + A72_CRM_PLL_PWR_ON,
(1 << A72_CRM_PLL_PWR_ON__PLL0_PWRON_LDO) |
(1 << A72_CRM_PLL_PWR_ON__PLL0_PWRON_PLL));
/*
* PLL0 Configuration Control Register
* these 4 registers drive the i_pll_ctrl[63:0] input of pll
* (16b per register).
* the values are derived from the spec (sections 8 and 10).
*/
mmio_write_32(ihost_base + A72_CRM_PLL0_CFG0_CTRL, 0x00000000);
mmio_write_32(ihost_base + A72_CRM_PLL0_CFG1_CTRL, 0x00008400);
mmio_write_32(ihost_base + A72_CRM_PLL0_CFG2_CTRL, 0x00000001);
mmio_write_32(ihost_base + A72_CRM_PLL0_CFG3_CTRL, 0x00000000);
/* Read the freq_sel from cluster 0, which is up already */
cluster0_freq_sel = bcm_get_ihost_pll_freq(0);
bcm_set_ihost_pll_freq(cluster_id, cluster0_freq_sel);
udelay(1);
/* Release clock source reset */
mmio_setbits_32(ihost_base + A72_CRM_SOFTRESETN_0,
(1 << A72_CRM_SOFTRESETN_0__CRYSTAL26_SOFTRESETN) |
(1 << A72_CRM_SOFTRESETN_0__CRM_PLL0_SOFTRESETN));
udelay(1);
/*
* Integer division for clks (divider value = n+1).
* These are the divisor of ARM PLL clock frequecy.
*/
mmio_write_32(ihost_base + A72_CRM_AXI_CLK_DESC, 0x00000001);
mmio_write_32(ihost_base + A72_CRM_ACP_CLK_DESC, 0x00000001);
mmio_write_32(ihost_base + A72_CRM_ATB_CLK_DESC, 0x00000004);
mmio_write_32(ihost_base + A72_CRM_PCLKDBG_DESC, 0x0000000b);
/*
* clock change trigger - must set to take effect after clock
* source change
*/
mmio_setbits_32(ihost_base + A72_CRM_CLOCK_MODE_CONTROL,
(1 << A72_CRM_CLOCK_MODE_CONTROL__CLK_CHANGE_TRIGGER));
/* turn on functional clocks */
mmio_setbits_32(ihost_base + A72_CRM_CLOCK_CONTROL_0,
(3 << A72_CRM_CLOCK_CONTROL_0__ARM_HW_SW_ENABLE_SEL) |
(3 << A72_CRM_CLOCK_CONTROL_0__AXI_HW_SW_ENABLE_SEL) |
(3 << A72_CRM_CLOCK_CONTROL_0__ACP_HW_SW_ENABLE_SEL) |
(3 << A72_CRM_CLOCK_CONTROL_0__ATB_HW_SW_ENABLE_SEL) |
(3 << A72_CRM_CLOCK_CONTROL_0__PCLKDBG_HW_SW_ENA_SEL));
mmio_setbits_32(ihost_base + A72_CRM_CLOCK_CONTROL_1,
(3 << A72_CRM_CLOCK_CONTROL_1__TMON_HW_SW_ENABLE_SEL) |
(3 << A72_CRM_CLOCK_CONTROL_1__APB_HW_SW_ENABLE_SEL));
/* Program D2XS Power Down Registers */
mmio_setbits_32(CDRU_CCN_REGISTER_CONTROL_1, d2xs);
/* Program Core Config Debug ROM Address Registers */
/* mark valid for Debug ROM base address */
mmio_write_32(ihost_base + A72_CRM_CORE_CONFIG_DBGCTRL,
(1 << A72_CRM_CORE_CONFIG_DBGCTRL__DBGROMADDRV));
/* Program Lo and HI address of coresight DBG rom address */
mmio_write_32(ihost_base + A72_CRM_CORE_CONFIG_DBGROM_LO,
(CORESIGHT_BASE_ADDR >> 12) & 0xffff);
mmio_write_32(ihost_base + A72_CRM_CORE_CONFIG_DBGROM_HI,
(CORESIGHT_BASE_ADDR >> 28) & 0xffff);
/*
* Release soft resets of different components.
* Order: Bus clocks --> PERIPH --> L2 --> cores
*/
/* Bus clocks soft resets */
mmio_setbits_32(ihost_base + A72_CRM_SOFTRESETN_0,
(1 << A72_CRM_SOFTRESETN_0__CRYSTAL26_SOFTRESETN) |
(1 << A72_CRM_SOFTRESETN_0__CRM_PLL0_SOFTRESETN) |
(1 << A72_CRM_SOFTRESETN_0__AXI_SOFTRESETN) |
(1 << A72_CRM_SOFTRESETN_0__ACP_SOFTRESETN) |
(1 << A72_CRM_SOFTRESETN_0__ATB_SOFTRESETN) |
(1 << A72_CRM_SOFTRESETN_0__PCLKDBG_SOFTRESETN));
mmio_setbits_32(ihost_base + A72_CRM_SOFTRESETN_1,
(1 << A72_CRM_SOFTRESETN_1__APB_SOFTRESETN));
/* Periph component softreset */
mmio_setbits_32(ihost_base + A72_CRM_SOFTRESETN_0,
(1 << A72_CRM_SOFTRESETN_0__TMON_SOFTRESETN));
/* L2 softreset */
mmio_setbits_32(ihost_base + A72_CRM_SOFTRESETN_0,
(1 << A72_CRM_SOFTRESETN_0__L2_SOFTRESETN));
/* Enable and program Satellite timer */
ihost_enable_satellite_timer(cluster_id);
}
void ihost_power_on_secondary_core(u_register_t mpidr, uint64_t rvbar)
{
uint32_t ihost_base;
uint32_t coreid = MPIDR_AFFLVL0_VAL(mpidr);
uint32_t cluster_id = MPIDR_AFFLVL1_VAL(mpidr);
ihost_base = IHOST0_BASE + cluster_id * IHOST_ADDR_SPACE;
INFO("programming core #%u\n", coreid);
if (coreid) {
/* program the entry point for core1 */
mmio_write_32(ihost_base + A72_CRM_CORE_CONFIG_RVBA1_LO,
rvbar & 0xFFFF);
mmio_write_32(ihost_base + A72_CRM_CORE_CONFIG_RVBA1_MID,
(rvbar >> 16) & 0xFFFF);
mmio_write_32(ihost_base + A72_CRM_CORE_CONFIG_RVBA1_HI,
(rvbar >> 32) & 0xFFFF);
} else {
/* program the entry point for core */
mmio_write_32(ihost_base + A72_CRM_CORE_CONFIG_RVBA0_LO,
rvbar & 0xFFFF);
mmio_write_32(ihost_base + A72_CRM_CORE_CONFIG_RVBA0_MID,
(rvbar >> 16) & 0xFFFF);
mmio_write_32(ihost_base + A72_CRM_CORE_CONFIG_RVBA0_HI,
(rvbar >> 32) & 0xFFFF);
}
/* Tell debug logic which processor is up */
mmio_setbits_32(ihost_base + A72_CRM_SUBSYSTEM_CONFIG_0,
(coreid ?
(2 << A72_CRM_SUBSYSTEM_CONFIG_0__DBGPWRDUP_CFG_SHIFT) :
(1 << A72_CRM_SUBSYSTEM_CONFIG_0__DBGPWRDUP_CFG_SHIFT)));
/* releasing soft resets for IHOST core */
mmio_setbits_32(ihost_base + A72_CRM_SOFTRESETN_0,
(coreid ?
(1 << A72_CRM_SOFTRESETN_0__COREPOR1_SOFTRESETN) :
(1 << A72_CRM_SOFTRESETN_0__COREPOR0_SOFTRESETN)));
mmio_setbits_32(ihost_base + A72_CRM_SOFTRESETN_1,
(coreid ?
((1 << A72_CRM_SOFTRESETN_1__CORE1_SOFTRESETN) |
(1 << A72_CRM_SOFTRESETN_1__DEBUG1_SOFTRESETN)) :
((1 << A72_CRM_SOFTRESETN_1__CORE0_SOFTRESETN) |
(1 << A72_CRM_SOFTRESETN_1__DEBUG0_SOFTRESETN))));
}
