[PATCH 31/49] imx: imx9: Add MIX power init
Peng Fan (OSS)
peng.fan at oss.nxp.com
Mon Jun 6 13:24:03 CEST 2022
From: Peng Fan <peng.fan at nxp.com>
Add power init of MEDIAMIX, MLMIX and DDRMIX. And clear isolation
of MIPI DSI/CSI, USBPHY after the power up.
SPL should call the power init in its boot sequence before accessing
above three MIX and USB.
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
arch/arm/include/asm/arch-imx9/imx-regs.h | 178 +++++++++++++++++++++
arch/arm/include/asm/arch-imx9/sys_proto.h | 1 +
arch/arm/mach-imx/imx9/soc.c | 101 ++++++++++++
3 files changed, 280 insertions(+)
diff --git a/arch/arm/include/asm/arch-imx9/imx-regs.h b/arch/arm/include/asm/arch-imx9/imx-regs.h
index dcdbcb324b1..fec65cf5f15 100644
--- a/arch/arm/include/asm/arch-imx9/imx-regs.h
+++ b/arch/arm/include/asm/arch-imx9/imx-regs.h
@@ -21,4 +21,182 @@
#define FSB_BASE_ADDR 0x47510000UL
+#define ANATOP_BASE_ADDR 0x44480000UL
+
+#define BLK_CTRL_WAKEUPMIX_BASE_ADDR 0x42420000
+#define BLK_CTRL_S_ANOMIX_BASE_ADDR 0x444f0000
+
+#define SRC_IPS_BASE_ADDR (0x44460000)
+#define SRC_GLOBAL_RBASE (SRC_IPS_BASE_ADDR + 0x0000)
+
+#define SRC_DDR_RBASE (SRC_IPS_BASE_ADDR + 0x1000)
+#define SRC_ML_RBASE (SRC_IPS_BASE_ADDR + 0x1800)
+#define SRC_MEDIA_RBASE (SRC_IPS_BASE_ADDR + 0x2400)
+#define SRC_M33P_RBASE (SRC_IPS_BASE_ADDR + 0x2800)
+
+#define SRC_MIX_SLICE_FUNC_STAT_PSW_STAT BIT(0)
+#define SRC_MIX_SLICE_FUNC_STAT_RST_STAT BIT(2)
+#define SRC_MIX_SLICE_FUNC_STAT_ISO_STAT BIT(4)
+#define SRC_MIX_SLICE_FUNC_STAT_MEM_STAT BIT(12)
+
+#if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__))
+#include <asm/types.h>
+#include <stdbool.h>
+
+enum mix_power_domain {
+ MIX_PD_MEDIAMIX,
+ MIX_PD_MLMIX,
+ MIX_PD_DDRMIX,
+};
+
+enum src_mix_slice_id {
+ SRC_MIX_EDGELOCK = 0,
+ SRC_MIX_AONMIX = 1,
+ SRC_MIX_WAKEUPMIX = 2,
+ SRC_MIX_DDRMIX = 3,
+ SRC_MIX_DDRPHY = 4,
+ SRC_MIX_ML = 5,
+ SRC_MIX_NIC = 6,
+ SRC_MIX_HSIO = 7,
+ SRC_MIX_MEDIA = 8,
+ SRC_MIX_CM33 = 9,
+ SRC_MIX_CA55C0 = 10,
+ SRC_MIX_CA55C1 = 11,
+ SRC_MIX_CA55CLUSTER = 12,
+};
+
+enum src_mem_slice_id {
+ SRC_MEM_AONMIX = 0,
+ SRC_MEM_WAKEUPMIX = 1,
+ SRC_MEM_DDRMIX = 2,
+ SRC_MEM_DDRPHY = 3,
+ SRC_MEM_ML = 4,
+ SRC_MEM_NIC = 5,
+ SRC_MEM_OCRAM = 6,
+ SRC_MEM_HSIO = 7,
+ SRC_MEM_MEDIA = 8,
+ SRC_MEM_CA55C0 = 9,
+ SRC_MEM_CA55C1 = 10,
+ SRC_MEM_CA55CLUSTER = 11,
+ SRC_MEM_L3 = 12,
+};
+
+struct blk_ctrl_s_aonmix_regs {
+ u32 cm33_irq_mask[7];
+ u32 initnsvtor;
+ u32 reserved1[8];
+ u32 ca55_irq_mask[7];
+ u32 initsvtor;
+ u32 m33_cfg;
+ u32 reserved2[11];
+ u32 axbs_aon_ctrl;
+ u32 reserved3[27];
+ u32 dap_access_stkybit;
+ u32 reserved4[3];
+ u32 lp_handshake[2];
+ u32 ca55_cpuwait;
+ u32 ca55_rvbaraddr0_l;
+ u32 ca55_rvbaraddr0_h;
+ u32 ca55_rvbaraddr1_l;
+ u32 ca55_rvbaraddr1_h;
+ u32 s401_irq_mask;
+ u32 s401_reset_req_mask;
+ u32 s401_halt_st;
+ u32 ca55_mode;
+ u32 nmi_mask;
+ u32 nmi_clr;
+ u32 wdog_any_mask;
+ u32 s4v1_ipi_noclk_ref1;
+};
+
+struct blk_ctrl_wakeupmix_regs {
+ u32 upper_addr;
+ u32 ipg_debug_cm33;
+ u32 reserved[2];
+ u32 qch_dis;
+ u32 ssi;
+ u32 reserved1[1];
+ u32 dexsc_err;
+ u32 mqs_setting;
+ u32 sai_clk_sel;
+ u32 eqos_gpr;
+ u32 enet_clk_sel;
+ u32 reserved2[1];
+ u32 volt_detect;
+ u32 i3c2_wakeup;
+ u32 ipg_debug_ca55c0;
+ u32 ipg_debug_ca55c1;
+ u32 axi_attr_cfg;
+ u32 i3c2_sda_irq;
+};
+
+struct src_general_regs {
+ u32 reserved[1];
+ u32 authen_ctrl;
+ u32 reserved1[2];
+ u32 scr;
+ u32 srtmr;
+ u32 srmask;
+ u32 reserved2[1];
+ u32 srmr[6];
+ u32 reserved3[2];
+ u32 sbmr[2];
+ u32 reserved4[2];
+ u32 srsr;
+ u32 gpr[19];
+ u32 reserved5[24];
+ u32 gpr20;
+ u32 cm_quiesce;
+ u32 cold_reset_ssar_ack_ctrl;
+ u32 sp_iso_ctrl;
+ u32 rom_lp_ctrl;
+ u32 a55_deny_stat;
+};
+
+struct src_mem_slice_regs {
+ u32 reserved[1];
+ u32 mem_ctrl;
+ u32 memlp_ctrl_0;
+ u32 reserved1[1];
+ u32 memlp_ctrl_1;
+ u32 memlp_ctrl_2;
+ u32 mem_stat;
+};
+
+struct src_mix_slice_regs {
+ u32 reserved[1];
+ u32 authen_ctrl;
+ u32 reserved1[2];
+ u32 lpm_setting[3];
+ u32 reserved2[1];
+ u32 slice_sw_ctrl;
+ u32 single_reset_sw_ctrl;
+ u32 reserved3[6];
+ u32 a55_hdsk_ack_ctrl;
+ u32 a55_hdsk_ack_stat;
+ u32 reserved4[2];
+ u32 ssar_ack_ctrl;
+ u32 ssar_ack_stat;
+ u32 reserved5[1];
+ u32 iso_off_dly_por;
+ u32 iso_on_dly;
+ u32 iso_off_dly;
+ u32 psw_off_lf_dly;
+ u32 reserved6[1];
+ u32 psw_off_hf_dly;
+ u32 psw_on_lf_dly;
+ u32 psw_on_hf_dly;
+ u32 reserved7[1];
+ u32 psw_ack_ctrl[2];
+ u32 psw_ack_stat;
+ u32 reserved8[1];
+ u32 mtr_ack_ctrl;
+ u32 mtr_ack_stat;
+ u32 reserved9[2];
+ u32 upi_stat[4];
+ u32 fsm_stat;
+ u32 func_stat;
+};
+#endif
+
#endif
diff --git a/arch/arm/include/asm/arch-imx9/sys_proto.h b/arch/arm/include/asm/arch-imx9/sys_proto.h
index 513aa0b9581..5ae7a043398 100644
--- a/arch/arm/include/asm/arch-imx9/sys_proto.h
+++ b/arch/arm/include/asm/arch-imx9/sys_proto.h
@@ -8,4 +8,5 @@
#include <asm/mach-imx/sys_proto.h>
+void soc_power_init(void);
#endif
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c
index 6df6f3f3296..c2cd4060722 100644
--- a/arch/arm/mach-imx/imx9/soc.c
+++ b/arch/arm/mach-imx/imx9/soc.c
@@ -28,6 +28,7 @@
#include <asm/bootm.h>
#include <asm/arch-imx/cpu.h>
#include <asm/mach-imx/s400_api.h>
+#include <linux/delay.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -277,3 +278,103 @@ int timer_init(void)
return 0;
}
+
+static int mix_power_init(enum mix_power_domain pd)
+{
+ enum src_mix_slice_id mix_id;
+ enum src_mem_slice_id mem_id;
+ struct src_mix_slice_regs *mix_regs;
+ struct src_mem_slice_regs *mem_regs;
+ struct src_general_regs *global_regs;
+ u32 scr, val;
+
+ switch (pd) {
+ case MIX_PD_MEDIAMIX:
+ mix_id = SRC_MIX_MEDIA;
+ mem_id = SRC_MEM_MEDIA;
+ scr = BIT(5);
+
+ /* Enable S400 handshake */
+ struct blk_ctrl_s_aonmix_regs *s_regs =
+ (struct blk_ctrl_s_aonmix_regs *)BLK_CTRL_S_ANOMIX_BASE_ADDR;
+
+ setbits_le32(&s_regs->lp_handshake[0], BIT(13));
+ break;
+ case MIX_PD_MLMIX:
+ mix_id = SRC_MIX_ML;
+ mem_id = SRC_MEM_ML;
+ scr = BIT(4);
+ break;
+ case MIX_PD_DDRMIX:
+ mix_id = SRC_MIX_DDRMIX;
+ mem_id = SRC_MEM_DDRMIX;
+ scr = BIT(6);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ mix_regs = (struct src_mix_slice_regs *)(ulong)(SRC_IPS_BASE_ADDR + 0x400 * (mix_id + 1));
+ mem_regs =
+ (struct src_mem_slice_regs *)(ulong)(SRC_IPS_BASE_ADDR + 0x3800 + 0x400 * mem_id);
+ global_regs = (struct src_general_regs *)(ulong)SRC_GLOBAL_RBASE;
+
+ /* Allow NS to set it */
+ setbits_le32(&mix_regs->authen_ctrl, BIT(9));
+
+ clrsetbits_le32(&mix_regs->psw_ack_ctrl[0], BIT(28), BIT(29));
+
+ /* mix reset will be held until boot core write this bit to 1 */
+ setbits_le32(&global_regs->scr, scr);
+
+ /* Enable mem in Low power auto sequence */
+ setbits_le32(&mem_regs->mem_ctrl, BIT(2));
+
+ /* Set the power down state */
+ val = readl(&mix_regs->func_stat);
+ if (val & SRC_MIX_SLICE_FUNC_STAT_PSW_STAT) {
+ /* The mix is default power off, power down it to make PDN_SFT bit
+ * aligned with FUNC STAT
+ */
+ setbits_le32(&mix_regs->slice_sw_ctrl, BIT(31));
+ val = readl(&mix_regs->func_stat);
+
+ /* Since PSW_STAT is 1, can't be used for power off status (SW_CTRL BIT31 set)) */
+ /* Check the MEM STAT change to ensure SSAR is completed */
+ while (!(val & SRC_MIX_SLICE_FUNC_STAT_MEM_STAT))
+ val = readl(&mix_regs->func_stat);
+
+ /* wait few ipg clock cycles to ensure FSM done and power off status is correct */
+ /* About 5 cycles at 24Mhz, 1us is enough */
+ udelay(1);
+ } else {
+ /* The mix is default power on, Do mix power cycle */
+ setbits_le32(&mix_regs->slice_sw_ctrl, BIT(31));
+ val = readl(&mix_regs->func_stat);
+ while (!(val & SRC_MIX_SLICE_FUNC_STAT_PSW_STAT))
+ val = readl(&mix_regs->func_stat);
+ }
+
+ /* power on */
+ clrbits_le32(&mix_regs->slice_sw_ctrl, BIT(31));
+ val = readl(&mix_regs->func_stat);
+ while (val & SRC_MIX_SLICE_FUNC_STAT_ISO_STAT)
+ val = readl(&mix_regs->func_stat);
+
+ return 0;
+}
+
+void disable_isolation(void)
+{
+ struct src_general_regs *global_regs = (struct src_general_regs *)(ulong)SRC_GLOBAL_RBASE;
+ /* clear isolation for usbphy, dsi, csi*/
+ writel(0x0, &global_regs->sp_iso_ctrl);
+}
+
+void soc_power_init(void)
+{
+ mix_power_init(MIX_PD_MEDIAMIX);
+ mix_power_init(MIX_PD_MLMIX);
+
+ disable_isolation();
+}
--
2.36.0
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