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Date: Tue, 11 Jan 2022 11:33:32 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: bjorn.andersson@...aro.org, mathieu.poirier@...aro.org,
shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
festevam@...il.com, linux-imx@....com,
linux-remoteproc@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: Peng Fan <peng.fan@....com>
Subject: [PATCH 8/9] remoteproc: imx_rproc: support i.MX8QM
From: Peng Fan <peng.fan@....com>
Most logic are same as i.MX8QXP, but i.MX8QM has two general purpose
M4 cores:
Use the lower 16 bits specifying core, higher 16 bits for flags.
The 2nd core has different start address from SCFW view
Signed-off-by: Peng Fan <peng.fan@....com>
---
drivers/remoteproc/imx_rproc.c | 55 +++++++++++++++++++++++++++++++---
1 file changed, 51 insertions(+), 4 deletions(-)
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 09d2a06e5ed6..7bc274fbce9f 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -77,8 +77,11 @@ struct imx_rproc_mem {
/* att flags */
/* M4 own area. Can be mapped at probe */
-#define ATT_OWN BIT(1)
-#define ATT_IOMEM BIT(2)
+#define ATT_OWN BIT(31)
+#define ATT_IOMEM BIT(30)
+/* I = [0:7] */
+#define ATT_CORE_MASK 0xffff
+#define ATT_CORE(I) BIT((I))
struct imx_rproc {
struct device *dev;
@@ -98,11 +101,25 @@ struct imx_rproc {
struct notifier_block proc_nb;
u32 rproc_pt;
u32 rsrc;
+ u32 reg;
int num_pd;
struct device **pd_dev;
struct device_link **pd_dev_link;
};
+static const struct imx_rproc_att imx_rproc_att_imx8qm[] = {
+ /* dev addr , sys addr , size , flags */
+ { 0x08000000, 0x08000000, 0x10000000, 0},
+ /* TCML */
+ { 0x1FFE0000, 0x34FE0000, 0x00020000, ATT_OWN | ATT_CORE(0)},
+ { 0x1FFE0000, 0x38FE0000, 0x00020000, ATT_OWN | ATT_CORE(1)},
+ /* TCMU */
+ { 0x20000000, 0x35000000, 0x00020000, ATT_OWN | ATT_CORE(0)},
+ { 0x20000000, 0x39000000, 0x00020000, ATT_OWN | ATT_CORE(1)},
+ /* DDR (Data) */
+ { 0x80000000, 0x80000000, 0x60000000, 0 },
+};
+
static const struct imx_rproc_att imx_rproc_att_imx8qxp[] = {
/* dev addr , sys addr , size , flags */
{ 0x08000000, 0x08000000, 0x10000000, 0},
@@ -260,6 +277,12 @@ static const struct imx_rproc_dcfg imx_rproc_cfg_imx8ulp = {
.method = IMX_RPROC_NONE,
};
+static const struct imx_rproc_dcfg imx_rproc_cfg_imx8qm = {
+ .att = imx_rproc_att_imx8qm,
+ .att_size = ARRAY_SIZE(imx_rproc_att_imx8qm),
+ .method = IMX_RPROC_SCU_API,
+};
+
static const struct imx_rproc_dcfg imx_rproc_cfg_imx8qxp = {
.att = imx_rproc_att_imx8qxp,
.att_size = ARRAY_SIZE(imx_rproc_att_imx8qxp),
@@ -310,7 +333,10 @@ static int imx_rproc_start(struct rproc *rproc)
ret = res.a0;
break;
case IMX_RPROC_SCU_API:
- ret = imx_sc_pm_cpu_start(priv->ipc_handle, priv->rsrc, true, 0x34fe0000);
+ if (priv->reg)
+ ret = imx_sc_pm_cpu_start(priv->ipc_handle, priv->rsrc, true, 0x38fe0000);
+ else
+ ret = imx_sc_pm_cpu_start(priv->ipc_handle, priv->rsrc, true, 0x34fe0000);
break;
default:
return -EOPNOTSUPP;
@@ -342,7 +368,10 @@ static int imx_rproc_stop(struct rproc *rproc)
dev_info(dev, "Not in wfi, force stopped\n");
break;
case IMX_RPROC_SCU_API:
- ret = imx_sc_pm_cpu_start(priv->ipc_handle, priv->rsrc, false, 0x34fe0000);
+ if (priv->reg)
+ ret = imx_sc_pm_cpu_start(priv->ipc_handle, priv->rsrc, false, 0x38fe0000);
+ else
+ ret = imx_sc_pm_cpu_start(priv->ipc_handle, priv->rsrc, false, 0x34fe0000);
break;
default:
return -EOPNOTSUPP;
@@ -364,6 +393,11 @@ static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64 da,
for (i = 0; i < dcfg->att_size; i++) {
const struct imx_rproc_att *att = &dcfg->att[i];
+ if (att->flags & ATT_CORE_MASK) {
+ if (!((BIT(priv->reg)) & (att->flags & ATT_CORE_MASK)))
+ continue;
+ }
+
if (da >= att->da && da + len < att->da + att->size) {
unsigned int offset = da - att->da;
@@ -594,6 +628,11 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
if (!(att->flags & ATT_OWN))
continue;
+ if (att->flags & ATT_CORE_MASK) {
+ if (!((BIT(priv->reg)) & (att->flags & ATT_CORE_MASK)))
+ continue;
+ }
+
if (b >= IMX_RPROC_MEM_MAX)
break;
@@ -809,6 +848,13 @@ static int imx_rproc_detect_mode(struct imx_rproc *priv)
return ret;
}
+ priv->reg = of_get_cpu_hwid(dev->of_node, 0);
+ if (priv->reg == ~0U)
+ priv->reg = 0;
+
+ if (priv->reg > 1)
+ return -EINVAL;
+
priv->has_clk = false;
/*
* If Mcore resource is not owned by Acore partition, It is kicked by ROM,
@@ -1005,6 +1051,7 @@ static const struct of_device_id imx_rproc_of_match[] = {
{ .compatible = "fsl,imx8mn-cm7", .data = &imx_rproc_cfg_imx8mn },
{ .compatible = "fsl,imx8mp-cm7", .data = &imx_rproc_cfg_imx8mn },
{ .compatible = "fsl,imx8qxp-cm4", .data = &imx_rproc_cfg_imx8qxp },
+ { .compatible = "fsl,imx8qm-cm4", .data = &imx_rproc_cfg_imx8qm },
{ .compatible = "fsl,imx8ulp-cm33", .data = &imx_rproc_cfg_imx8ulp },
{},
};
--
2.25.1
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