diff options
Diffstat (limited to 'plat/imx/imx8m/imx8mp/gpc.c')
| -rw-r--r-- | plat/imx/imx8m/imx8mp/gpc.c | 385 |
1 files changed, 385 insertions, 0 deletions
diff --git a/plat/imx/imx8m/imx8mp/gpc.c b/plat/imx/imx8m/imx8mp/gpc.c new file mode 100644 index 0000000..956b508 --- /dev/null +++ b/plat/imx/imx8m/imx8mp/gpc.c @@ -0,0 +1,385 @@ +/* + * Copyright 2019-2022 NXP + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <stdbool.h> +#include <stdint.h> +#include <stdlib.h> + +#include <common/debug.h> +#include <drivers/delay_timer.h> +#include <lib/mmio.h> +#include <lib/psci/psci.h> +#include <lib/smccc.h> +#include <services/std_svc.h> + +#include <gpc.h> +#include <imx_aipstz.h> +#include <imx_sip_svc.h> +#include <platform_def.h> + +#define CCGR(x) (0x4000 + (x) * 0x10) +#define IMR_NUM U(5) + +struct imx_noc_setting { + uint32_t domain_id; + uint32_t start; + uint32_t end; + uint32_t prioriy; + uint32_t mode; + uint32_t socket_qos_en; +}; + +enum clk_type { + CCM_ROOT_SLICE, + CCM_CCGR, +}; + +struct clk_setting { + uint32_t offset; + uint32_t val; + enum clk_type type; +}; + +enum pu_domain_id { + /* hsio ss */ + HSIOMIX, + PCIE_PHY, + USB1_PHY, + USB2_PHY, + MLMIX, + AUDIOMIX, + /* gpu ss */ + GPUMIX, + GPU2D, + GPU3D, + /* vpu ss */ + VPUMIX, + VPU_G1, + VPU_G2, + VPU_H1, + /* media ss */ + MEDIAMIX, + MEDIAMIX_ISPDWP, + MIPI_PHY1, + MIPI_PHY2, + /* HDMI ss */ + HDMIMIX, + HDMI_PHY, + DDRMIX, + MAX_DOMAINS, +}; + +/* PU domain, add some hole to minimize the uboot change */ +static struct imx_pwr_domain pu_domains[MAX_DOMAINS] = { + [MIPI_PHY1] = IMX_PD_DOMAIN(MIPI_PHY1, false), + [PCIE_PHY] = IMX_PD_DOMAIN(PCIE_PHY, false), + [USB1_PHY] = IMX_PD_DOMAIN(USB1_PHY, true), + [USB2_PHY] = IMX_PD_DOMAIN(USB2_PHY, true), + [MLMIX] = IMX_MIX_DOMAIN(MLMIX, false), + [AUDIOMIX] = IMX_MIX_DOMAIN(AUDIOMIX, false), + [GPU2D] = IMX_PD_DOMAIN(GPU2D, false), + [GPUMIX] = IMX_MIX_DOMAIN(GPUMIX, false), + [VPUMIX] = IMX_MIX_DOMAIN(VPUMIX, false), + [GPU3D] = IMX_PD_DOMAIN(GPU3D, false), + [MEDIAMIX] = IMX_MIX_DOMAIN(MEDIAMIX, false), + [VPU_G1] = IMX_PD_DOMAIN(VPU_G1, false), + [VPU_G2] = IMX_PD_DOMAIN(VPU_G2, false), + [VPU_H1] = IMX_PD_DOMAIN(VPU_H1, false), + [HDMIMIX] = IMX_MIX_DOMAIN(HDMIMIX, false), + [HDMI_PHY] = IMX_PD_DOMAIN(HDMI_PHY, false), + [MIPI_PHY2] = IMX_PD_DOMAIN(MIPI_PHY2, false), + [HSIOMIX] = IMX_MIX_DOMAIN(HSIOMIX, false), + [MEDIAMIX_ISPDWP] = IMX_PD_DOMAIN(MEDIAMIX_ISPDWP, false), +}; + +static struct imx_noc_setting noc_setting[] = { + {MLMIX, 0x180, 0x180, 0x80000303, 0x0, 0x0}, + {AUDIOMIX, 0x200, 0x200, 0x80000303, 0x0, 0x0}, + {AUDIOMIX, 0x280, 0x480, 0x80000404, 0x0, 0x0}, + {GPUMIX, 0x500, 0x580, 0x80000303, 0x0, 0x0}, + {HDMIMIX, 0x600, 0x680, 0x80000202, 0x0, 0x1}, + {HDMIMIX, 0x700, 0x700, 0x80000505, 0x0, 0x0}, + {HSIOMIX, 0x780, 0x900, 0x80000303, 0x0, 0x0}, + {MEDIAMIX, 0x980, 0xb80, 0x80000202, 0x0, 0x1}, + {MEDIAMIX_ISPDWP, 0xc00, 0xd00, 0x80000505, 0x0, 0x0}, + {VPU_G1, 0xd80, 0xd80, 0x80000303, 0x0, 0x0}, + {VPU_G2, 0xe00, 0xe00, 0x80000303, 0x0, 0x0}, + {VPU_H1, 0xe80, 0xe80, 0x80000303, 0x0, 0x0} +}; + +static struct clk_setting hsiomix_clk[] = { + { 0x8380, 0x0, CCM_ROOT_SLICE }, + { 0x44d0, 0x0, CCM_CCGR }, + { 0x45c0, 0x0, CCM_CCGR }, +}; + +static struct aipstz_cfg aipstz5[] = { + {IMX_AIPSTZ5, 0x77777777, 0x77777777, .opacr = {0x0, 0x0, 0x0, 0x0, 0x0}, }, + {0}, +}; + +static unsigned int pu_domain_status; + +static void imx_noc_qos(unsigned int domain_id) +{ + unsigned int i; + uint32_t hurry; + + if (domain_id == HDMIMIX) { + mmio_write_32(IMX_HDMI_CTL_BASE + TX_CONTROL1, 0x22018); + mmio_write_32(IMX_HDMI_CTL_BASE + TX_CONTROL1, 0x22010); + + /* set GPR to make lcdif read hurry level 0x7 */ + hurry = mmio_read_32(IMX_HDMI_CTL_BASE + TX_CONTROL0); + hurry |= 0x00077000; + mmio_write_32(IMX_HDMI_CTL_BASE + TX_CONTROL0, hurry); + } + + if (domain_id == MEDIAMIX) { + /* handle mediamix special */ + mmio_write_32(IMX_MEDIAMIX_CTL_BASE + RSTn_CSR, 0x1FFFFFF); + mmio_write_32(IMX_MEDIAMIX_CTL_BASE + CLK_EN_CSR, 0x1FFFFFF); + mmio_write_32(IMX_MEDIAMIX_CTL_BASE + RST_DIV, 0x40030000); + + /* set GPR to make lcdif read hurry level 0x7 */ + hurry = mmio_read_32(IMX_MEDIAMIX_CTL_BASE + LCDIF_ARCACHE_CTRL); + hurry |= 0xfc00; + mmio_write_32(IMX_MEDIAMIX_CTL_BASE + LCDIF_ARCACHE_CTRL, hurry); + /* set GPR to make isi write hurry level 0x7 */ + hurry = mmio_read_32(IMX_MEDIAMIX_CTL_BASE + ISI_CACHE_CTRL); + hurry |= 0x1ff00000; + mmio_write_32(IMX_MEDIAMIX_CTL_BASE + ISI_CACHE_CTRL, hurry); + } + + /* set MIX NoC */ + for (i = 0; i < ARRAY_SIZE(noc_setting); i++) { + if (noc_setting[i].domain_id == domain_id) { + udelay(50); + uint32_t offset = noc_setting[i].start; + + while (offset <= noc_setting[i].end) { + mmio_write_32(IMX_NOC_BASE + offset + 0x8, noc_setting[i].prioriy); + mmio_write_32(IMX_NOC_BASE + offset + 0xc, noc_setting[i].mode); + mmio_write_32(IMX_NOC_BASE + offset + 0x18, noc_setting[i].socket_qos_en); + offset += 0x80; + } + } + } +} + +void imx_gpc_pm_domain_enable(uint32_t domain_id, bool on) +{ + struct imx_pwr_domain *pwr_domain = &pu_domains[domain_id]; + unsigned int i; + + /* validate the domain id */ + if (domain_id >= MAX_DOMAINS) { + return; + } + + if (domain_id == HSIOMIX) { + for (i = 0; i < ARRAY_SIZE(hsiomix_clk); i++) { + hsiomix_clk[i].val = mmio_read_32(IMX_CCM_BASE + hsiomix_clk[i].offset); + mmio_setbits_32(IMX_CCM_BASE + hsiomix_clk[i].offset, + hsiomix_clk[i].type == CCM_ROOT_SLICE ? BIT(28) : 0x3); + } + } + + if (on) { + if (pwr_domain->need_sync) { + pu_domain_status |= (1 << domain_id); + } + + if (domain_id == HDMIMIX) { + /* assert the reset */ + mmio_write_32(IMX_HDMI_CTL_BASE + RTX_RESET_CTL0, 0x0); + /* enable all th function clock */ + mmio_write_32(IMX_HDMI_CTL_BASE + RTX_CLK_CTL0, 0xFFFFFFFF); + mmio_write_32(IMX_HDMI_CTL_BASE + RTX_CLK_CTL1, 0x7ffff87e); + } + + /* clear the PGC bit */ + mmio_clrbits_32(IMX_GPC_BASE + pwr_domain->pgc_offset, 0x1); + + /* power up the domain */ + mmio_setbits_32(IMX_GPC_BASE + PU_PGC_UP_TRG, pwr_domain->pwr_req); + + /* wait for power request done */ + while (mmio_read_32(IMX_GPC_BASE + PU_PGC_UP_TRG) & pwr_domain->pwr_req) + ; + + if (domain_id == HDMIMIX) { + /* wait for memory repair done for HDMIMIX */ + while (!(mmio_read_32(IMX_SRC_BASE + 0x94) & BIT(8))) + ; + /* disable all the function clock */ + mmio_write_32(IMX_HDMI_CTL_BASE + RTX_CLK_CTL0, 0x0); + mmio_write_32(IMX_HDMI_CTL_BASE + RTX_CLK_CTL1, 0x0); + /* deassert the reset */ + mmio_write_32(IMX_HDMI_CTL_BASE + RTX_RESET_CTL0, 0xffffffff); + /* enable all the clock again */ + mmio_write_32(IMX_HDMI_CTL_BASE + RTX_CLK_CTL0, 0xFFFFFFFF); + mmio_write_32(IMX_HDMI_CTL_BASE + RTX_CLK_CTL1, 0x7ffff87e); + } + + if (domain_id == HSIOMIX) { + /* enable HSIOMIX clock */ + mmio_write_32(IMX_HSIOMIX_CTL_BASE, 0x2); + } + + /* handle the ADB400 sync */ + if (pwr_domain->need_sync) { + /* clear adb power down request */ + mmio_setbits_32(IMX_GPC_BASE + GPC_PU_PWRHSK, pwr_domain->adb400_sync); + + /* wait for adb power request ack */ + while (!(mmio_read_32(IMX_GPC_BASE + GPC_PU_PWRHSK) & pwr_domain->adb400_ack)) + ; + } + + imx_noc_qos(domain_id); + + /* AIPS5 config is lost when audiomix is off, so need to re-init it */ + if (domain_id == AUDIOMIX) { + imx_aipstz_init(aipstz5); + } + } else { + if (pwr_domain->always_on) { + return; + } + + if (pwr_domain->need_sync) { + pu_domain_status &= ~(1 << domain_id); + } + + /* handle the ADB400 sync */ + if (pwr_domain->need_sync) { + /* set adb power down request */ + mmio_clrbits_32(IMX_GPC_BASE + GPC_PU_PWRHSK, pwr_domain->adb400_sync); + + /* wait for adb power request ack */ + while ((mmio_read_32(IMX_GPC_BASE + GPC_PU_PWRHSK) & pwr_domain->adb400_ack)) + ; + } + + /* set the PGC bit */ + mmio_setbits_32(IMX_GPC_BASE + pwr_domain->pgc_offset, 0x1); + + /* + * leave the G1, G2, H1 power domain on until VPUMIX power off, + * otherwise system will hang due to VPUMIX ACK + */ + if (domain_id == VPU_H1 || domain_id == VPU_G1 || domain_id == VPU_G2) { + return; + } + + if (domain_id == VPUMIX) { + mmio_write_32(IMX_GPC_BASE + PU_PGC_DN_TRG, VPU_G1_PWR_REQ | + VPU_G2_PWR_REQ | VPU_H1_PWR_REQ); + + while (mmio_read_32(IMX_GPC_BASE + PU_PGC_DN_TRG) & (VPU_G1_PWR_REQ | + VPU_G2_PWR_REQ | VPU_H1_PWR_REQ)) + ; + } + + /* power down the domain */ + mmio_setbits_32(IMX_GPC_BASE + PU_PGC_DN_TRG, pwr_domain->pwr_req); + + /* wait for power request done */ + while (mmio_read_32(IMX_GPC_BASE + PU_PGC_DN_TRG) & pwr_domain->pwr_req) + ; + + if (domain_id == HDMIMIX) { + /* disable all the clocks of HDMIMIX */ + mmio_write_32(IMX_HDMI_CTL_BASE + 0x40, 0x0); + mmio_write_32(IMX_HDMI_CTL_BASE + 0x50, 0x0); + } + } + + if (domain_id == HSIOMIX) { + for (i = 0; i < ARRAY_SIZE(hsiomix_clk); i++) { + mmio_write_32(IMX_CCM_BASE + hsiomix_clk[i].offset, hsiomix_clk[i].val); + } + } +} + +void imx_gpc_init(void) +{ + uint32_t val; + unsigned int i; + + /* mask all the wakeup irq by default */ + for (i = 0; i < IMR_NUM; i++) { + mmio_write_32(IMX_GPC_BASE + IMR1_CORE0_A53 + i * 4, ~0x0); + mmio_write_32(IMX_GPC_BASE + IMR1_CORE1_A53 + i * 4, ~0x0); + mmio_write_32(IMX_GPC_BASE + IMR1_CORE2_A53 + i * 4, ~0x0); + mmio_write_32(IMX_GPC_BASE + IMR1_CORE3_A53 + i * 4, ~0x0); + mmio_write_32(IMX_GPC_BASE + IMR1_CORE0_M4 + i * 4, ~0x0); + } + + val = mmio_read_32(IMX_GPC_BASE + LPCR_A53_BSC); + /* use GIC wake_request to wakeup C0~C3 from LPM */ + val |= CORE_WKUP_FROM_GIC; + /* clear the MASTER0 LPM handshake */ + val &= ~MASTER0_LPM_HSK; + mmio_write_32(IMX_GPC_BASE + LPCR_A53_BSC, val); + + /* clear MASTER1 & MASTER2 mapping in CPU0(A53) */ + mmio_clrbits_32(IMX_GPC_BASE + MST_CPU_MAPPING, (MASTER1_MAPPING | + MASTER2_MAPPING)); + + /* set all mix/PU in A53 domain */ + mmio_write_32(IMX_GPC_BASE + PGC_CPU_0_1_MAPPING, 0x3fffff); + + /* + * Set the CORE & SCU power up timing: + * SW = 0x1, SW2ISO = 0x1; + * the CPU CORE and SCU power up timing counter + * is drived by 32K OSC, each domain's power up + * latency is (SW + SW2ISO) / 32768 + */ + mmio_write_32(IMX_GPC_BASE + COREx_PGC_PCR(0) + 0x4, 0x401); + mmio_write_32(IMX_GPC_BASE + COREx_PGC_PCR(1) + 0x4, 0x401); + mmio_write_32(IMX_GPC_BASE + COREx_PGC_PCR(2) + 0x4, 0x401); + mmio_write_32(IMX_GPC_BASE + COREx_PGC_PCR(3) + 0x4, 0x401); + mmio_write_32(IMX_GPC_BASE + PLAT_PGC_PCR + 0x4, 0x401); + mmio_write_32(IMX_GPC_BASE + PGC_SCU_TIMING, + (0x59 << TMC_TMR_SHIFT) | 0x5B | (0x2 << TRC1_TMC_SHIFT)); + + /* set DUMMY PDN/PUP ACK by default for A53 domain */ + mmio_write_32(IMX_GPC_BASE + PGC_ACK_SEL_A53, + A53_DUMMY_PUP_ACK | A53_DUMMY_PDN_ACK); + + /* clear DSM by default */ + val = mmio_read_32(IMX_GPC_BASE + SLPCR); + val &= ~SLPCR_EN_DSM; + /* enable the fast wakeup wait/stop mode */ + val |= SLPCR_A53_FASTWUP_WAIT_MODE; + val |= SLPCR_A53_FASTWUP_STOP_MODE; + /* clear the RBC */ + val &= ~(0x3f << SLPCR_RBC_COUNT_SHIFT); + /* set the STBY_COUNT to 0x5, (128 * 30)us */ + val &= ~(0x7 << SLPCR_STBY_COUNT_SHFT); + val |= (0x5 << SLPCR_STBY_COUNT_SHFT); + mmio_write_32(IMX_GPC_BASE + SLPCR, val); + + /* + * USB PHY power up needs to make sure RESET bit in SRC is clear, + * otherwise, the PU power up bit in GPC will NOT self-cleared. + * only need to do it once. + */ + mmio_clrbits_32(IMX_SRC_BASE + SRC_OTG1PHY_SCR, 0x1); + mmio_clrbits_32(IMX_SRC_BASE + SRC_OTG2PHY_SCR, 0x1); + + /* enable all the power domain by default */ + for (i = 0; i < 101; i++) { + mmio_write_32(IMX_CCM_BASE + CCGR(i), 0x3); + } + + for (i = 0; i < 20; i++) { + imx_gpc_pm_domain_enable(i, true); + } +} |