mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 22:33:18 +00:00
2b690b9837
Enable wuo config to accelerate coherent ordered writes for LS2080A and LS2085A. WRIOP IP is connected to RNI-20 Node. Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
371 lines
8.6 KiB
ArmAsm
371 lines
8.6 KiB
ArmAsm
/*
|
|
* (C) Copyright 2014-2015 Freescale Semiconductor
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* Extracted from armv8/start.S
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <linux/linkage.h>
|
|
#include <asm/gic.h>
|
|
#include <asm/macro.h>
|
|
#ifdef CONFIG_MP
|
|
#include <asm/arch/mp.h>
|
|
#endif
|
|
|
|
ENTRY(lowlevel_init)
|
|
mov x29, lr /* Save LR */
|
|
|
|
#ifdef CONFIG_FSL_LSCH3
|
|
|
|
/* Set Wuo bit for RN-I 20 */
|
|
#if defined(CONFIG_LS2085A) || defined (CONFIG_LS2080A)
|
|
ldr x0, =CCI_AUX_CONTROL_BASE(20)
|
|
ldr x1, =0x00000010
|
|
bl ccn504_set_aux
|
|
#endif
|
|
|
|
/* Add fully-coherent masters to DVM domain */
|
|
ldr x0, =CCI_MN_BASE
|
|
ldr x1, =CCI_MN_RNF_NODEID_LIST
|
|
ldr x2, =CCI_MN_DVM_DOMAIN_CTL_SET
|
|
bl ccn504_add_masters_to_dvm
|
|
|
|
/* Set all RN-I ports to QoS of 15 */
|
|
ldr x0, =CCI_S0_QOS_CONTROL_BASE(0)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S1_QOS_CONTROL_BASE(0)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S2_QOS_CONTROL_BASE(0)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
|
|
ldr x0, =CCI_S0_QOS_CONTROL_BASE(2)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S1_QOS_CONTROL_BASE(2)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S2_QOS_CONTROL_BASE(2)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
|
|
ldr x0, =CCI_S0_QOS_CONTROL_BASE(6)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S1_QOS_CONTROL_BASE(6)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S2_QOS_CONTROL_BASE(6)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
|
|
ldr x0, =CCI_S0_QOS_CONTROL_BASE(12)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S1_QOS_CONTROL_BASE(12)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S2_QOS_CONTROL_BASE(12)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
|
|
ldr x0, =CCI_S0_QOS_CONTROL_BASE(16)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S1_QOS_CONTROL_BASE(16)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S2_QOS_CONTROL_BASE(16)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
|
|
ldr x0, =CCI_S0_QOS_CONTROL_BASE(20)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S1_QOS_CONTROL_BASE(20)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
ldr x0, =CCI_S2_QOS_CONTROL_BASE(20)
|
|
ldr x1, =0x00FF000C
|
|
bl ccn504_set_qos
|
|
#endif
|
|
|
|
/* Set the SMMU page size in the sACR register */
|
|
ldr x1, =SMMU_BASE
|
|
ldr w0, [x1, #0x10]
|
|
orr w0, w0, #1 << 16 /* set sACR.pagesize to indicate 64K page */
|
|
str w0, [x1, #0x10]
|
|
|
|
/* Initialize GIC Secure Bank Status */
|
|
#if defined(CONFIG_GICV2) || defined(CONFIG_GICV3)
|
|
branch_if_slave x0, 1f
|
|
ldr x0, =GICD_BASE
|
|
bl gic_init_secure
|
|
1:
|
|
#ifdef CONFIG_GICV3
|
|
ldr x0, =GICR_BASE
|
|
bl gic_init_secure_percpu
|
|
#elif defined(CONFIG_GICV2)
|
|
ldr x0, =GICD_BASE
|
|
ldr x1, =GICC_BASE
|
|
bl gic_init_secure_percpu
|
|
#endif
|
|
#endif
|
|
|
|
branch_if_master x0, x1, 2f
|
|
|
|
#if defined(CONFIG_MP) && defined(CONFIG_ARMV8_MULTIENTRY)
|
|
ldr x0, =secondary_boot_func
|
|
blr x0
|
|
#endif
|
|
|
|
2:
|
|
#ifdef CONFIG_FSL_TZPC_BP147
|
|
/* Set Non Secure access for all devices protected via TZPC */
|
|
ldr x1, =TZPCDECPROT_0_SET_BASE /* Decode Protection-0 Set Reg */
|
|
orr w0, w0, #1 << 3 /* DCFG_RESET is accessible from NS world */
|
|
str w0, [x1]
|
|
|
|
isb
|
|
dsb sy
|
|
#endif
|
|
|
|
#ifdef CONFIG_FSL_TZASC_400
|
|
/* Set TZASC so that:
|
|
* a. We use only Region0 whose global secure write/read is EN
|
|
* b. We use only Region0 whose NSAID write/read is EN
|
|
*
|
|
* NOTE: As per the CCSR map doc, TZASC 3 and TZASC 4 are just
|
|
* placeholders.
|
|
*/
|
|
ldr x1, =TZASC_GATE_KEEPER(0)
|
|
ldr x0, [x1] /* Filter 0 Gate Keeper Register */
|
|
orr x0, x0, #1 << 0 /* Set open_request for Filter 0 */
|
|
str x0, [x1]
|
|
|
|
ldr x1, =TZASC_GATE_KEEPER(1)
|
|
ldr x0, [x1] /* Filter 0 Gate Keeper Register */
|
|
orr x0, x0, #1 << 0 /* Set open_request for Filter 0 */
|
|
str x0, [x1]
|
|
|
|
ldr x1, =TZASC_REGION_ATTRIBUTES_0(0)
|
|
ldr x0, [x1] /* Region-0 Attributes Register */
|
|
orr x0, x0, #1 << 31 /* Set Sec global write en, Bit[31] */
|
|
orr x0, x0, #1 << 30 /* Set Sec global read en, Bit[30] */
|
|
str x0, [x1]
|
|
|
|
ldr x1, =TZASC_REGION_ATTRIBUTES_0(1)
|
|
ldr x0, [x1] /* Region-1 Attributes Register */
|
|
orr x0, x0, #1 << 31 /* Set Sec global write en, Bit[31] */
|
|
orr x0, x0, #1 << 30 /* Set Sec global read en, Bit[30] */
|
|
str x0, [x1]
|
|
|
|
ldr x1, =TZASC_REGION_ID_ACCESS_0(0)
|
|
ldr w0, [x1] /* Region-0 Access Register */
|
|
mov w0, #0xFFFFFFFF /* Set nsaid_wr_en and nsaid_rd_en */
|
|
str w0, [x1]
|
|
|
|
ldr x1, =TZASC_REGION_ID_ACCESS_0(1)
|
|
ldr w0, [x1] /* Region-1 Attributes Register */
|
|
mov w0, #0xFFFFFFFF /* Set nsaid_wr_en and nsaid_rd_en */
|
|
str w0, [x1]
|
|
|
|
isb
|
|
dsb sy
|
|
#endif
|
|
mov lr, x29 /* Restore LR */
|
|
ret
|
|
ENDPROC(lowlevel_init)
|
|
|
|
hnf_pstate_poll:
|
|
/* x0 has the desired status, return 0 for success, 1 for timeout
|
|
* clobber x1, x2, x3, x4, x6, x7
|
|
*/
|
|
mov x1, x0
|
|
mov x7, #0 /* flag for timeout */
|
|
mrs x3, cntpct_el0 /* read timer */
|
|
add x3, x3, #1200 /* timeout after 100 microseconds */
|
|
mov x0, #0x18
|
|
movk x0, #0x420, lsl #16 /* HNF0_PSTATE_STATUS */
|
|
mov w6, #8 /* HN-F node count */
|
|
1:
|
|
ldr x2, [x0]
|
|
cmp x2, x1 /* check status */
|
|
b.eq 2f
|
|
mrs x4, cntpct_el0
|
|
cmp x4, x3
|
|
b.ls 1b
|
|
mov x7, #1 /* timeout */
|
|
b 3f
|
|
2:
|
|
add x0, x0, #0x10000 /* move to next node */
|
|
subs w6, w6, #1
|
|
cbnz w6, 1b
|
|
3:
|
|
mov x0, x7
|
|
ret
|
|
|
|
hnf_set_pstate:
|
|
/* x0 has the desired state, clobber x1, x2, x6 */
|
|
mov x1, x0
|
|
/* power state to SFONLY */
|
|
mov w6, #8 /* HN-F node count */
|
|
mov x0, #0x10
|
|
movk x0, #0x420, lsl #16 /* HNF0_PSTATE_REQ */
|
|
1: /* set pstate to sfonly */
|
|
ldr x2, [x0]
|
|
and x2, x2, #0xfffffffffffffffc /* & HNFPSTAT_MASK */
|
|
orr x2, x2, x1
|
|
str x2, [x0]
|
|
add x0, x0, #0x10000 /* move to next node */
|
|
subs w6, w6, #1
|
|
cbnz w6, 1b
|
|
|
|
ret
|
|
|
|
ENTRY(__asm_flush_l3_cache)
|
|
/*
|
|
* Return status in x0
|
|
* success 0
|
|
* tmeout 1 for setting SFONLY, 2 for FAM, 3 for both
|
|
*/
|
|
mov x29, lr
|
|
mov x8, #0
|
|
|
|
dsb sy
|
|
mov x0, #0x1 /* HNFPSTAT_SFONLY */
|
|
bl hnf_set_pstate
|
|
|
|
mov x0, #0x4 /* SFONLY status */
|
|
bl hnf_pstate_poll
|
|
cbz x0, 1f
|
|
mov x8, #1 /* timeout */
|
|
1:
|
|
dsb sy
|
|
mov x0, #0x3 /* HNFPSTAT_FAM */
|
|
bl hnf_set_pstate
|
|
|
|
mov x0, #0xc /* FAM status */
|
|
bl hnf_pstate_poll
|
|
cbz x0, 1f
|
|
add x8, x8, #0x2
|
|
1:
|
|
mov x0, x8
|
|
mov lr, x29
|
|
ret
|
|
ENDPROC(__asm_flush_l3_cache)
|
|
|
|
#ifdef CONFIG_MP
|
|
/* Keep literals not used by the secondary boot code outside it */
|
|
.ltorg
|
|
|
|
/* Using 64 bit alignment since the spin table is accessed as data */
|
|
.align 4
|
|
.global secondary_boot_code
|
|
/* Secondary Boot Code starts here */
|
|
secondary_boot_code:
|
|
.global __spin_table
|
|
__spin_table:
|
|
.space CONFIG_MAX_CPUS*SPIN_TABLE_ELEM_SIZE
|
|
|
|
.align 2
|
|
ENTRY(secondary_boot_func)
|
|
/*
|
|
* MPIDR_EL1 Fields:
|
|
* MPIDR[1:0] = AFF0_CPUID <- Core ID (0,1)
|
|
* MPIDR[7:2] = AFF0_RES
|
|
* MPIDR[15:8] = AFF1_CLUSTERID <- Cluster ID (0,1,2,3)
|
|
* MPIDR[23:16] = AFF2_CLUSTERID
|
|
* MPIDR[24] = MT
|
|
* MPIDR[29:25] = RES0
|
|
* MPIDR[30] = U
|
|
* MPIDR[31] = ME
|
|
* MPIDR[39:32] = AFF3
|
|
*
|
|
* Linear Processor ID (LPID) calculation from MPIDR_EL1:
|
|
* (We only use AFF0_CPUID and AFF1_CLUSTERID for now
|
|
* until AFF2_CLUSTERID and AFF3 have non-zero values)
|
|
*
|
|
* LPID = MPIDR[15:8] | MPIDR[1:0]
|
|
*/
|
|
mrs x0, mpidr_el1
|
|
ubfm x1, x0, #8, #15
|
|
ubfm x2, x0, #0, #1
|
|
orr x10, x2, x1, lsl #2 /* x10 has LPID */
|
|
ubfm x9, x0, #0, #15 /* x9 contains MPIDR[15:0] */
|
|
/*
|
|
* offset of the spin table element for this core from start of spin
|
|
* table (each elem is padded to 64 bytes)
|
|
*/
|
|
lsl x1, x10, #6
|
|
ldr x0, =__spin_table
|
|
/* physical address of this cpus spin table element */
|
|
add x11, x1, x0
|
|
|
|
ldr x0, =__real_cntfrq
|
|
ldr x0, [x0]
|
|
msr cntfrq_el0, x0 /* set with real frequency */
|
|
str x9, [x11, #16] /* LPID */
|
|
mov x4, #1
|
|
str x4, [x11, #8] /* STATUS */
|
|
dsb sy
|
|
#if defined(CONFIG_GICV3)
|
|
gic_wait_for_interrupt_m x0
|
|
#elif defined(CONFIG_GICV2)
|
|
ldr x0, =GICC_BASE
|
|
gic_wait_for_interrupt_m x0, w1
|
|
#endif
|
|
|
|
bl secondary_switch_to_el2
|
|
#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
|
|
bl secondary_switch_to_el1
|
|
#endif
|
|
|
|
slave_cpu:
|
|
wfe
|
|
ldr x0, [x11]
|
|
cbz x0, slave_cpu
|
|
#ifndef CONFIG_ARMV8_SWITCH_TO_EL1
|
|
mrs x1, sctlr_el2
|
|
#else
|
|
mrs x1, sctlr_el1
|
|
#endif
|
|
tbz x1, #25, cpu_is_le
|
|
rev x0, x0 /* BE to LE conversion */
|
|
cpu_is_le:
|
|
br x0 /* branch to the given address */
|
|
ENDPROC(secondary_boot_func)
|
|
|
|
ENTRY(secondary_switch_to_el2)
|
|
switch_el x0, 1f, 0f, 0f
|
|
0: ret
|
|
1: armv8_switch_to_el2_m x0
|
|
ENDPROC(secondary_switch_to_el2)
|
|
|
|
ENTRY(secondary_switch_to_el1)
|
|
switch_el x0, 0f, 1f, 0f
|
|
0: ret
|
|
1: armv8_switch_to_el1_m x0, x1
|
|
ENDPROC(secondary_switch_to_el1)
|
|
|
|
/* Ensure that the literals used by the secondary boot code are
|
|
* assembled within it (this is required so that we can protect
|
|
* this area with a single memreserve region
|
|
*/
|
|
.ltorg
|
|
|
|
/* 64 bit alignment for elements accessed as data */
|
|
.align 4
|
|
.global __real_cntfrq
|
|
__real_cntfrq:
|
|
.quad COUNTER_FREQUENCY
|
|
.globl __secondary_boot_code_size
|
|
.type __secondary_boot_code_size, %object
|
|
/* Secondary Boot Code ends here */
|
|
__secondary_boot_code_size:
|
|
.quad .-secondary_boot_code
|
|
#endif
|