diff mbox series

[v2,5/5] memory: brcmstb_dpfe: support DPFE API v4

Message ID 20240119215231.758844-6-mmayer@broadcom.com (mailing list archive)
State New, archived
Headers show
Series memory: brcmstb_dpfe: support DPFE API v4 | expand

Commit Message

Markus Mayer Jan. 19, 2024, 9:52 p.m. UTC
Add support for version 4 of the DPFE API. This new version is largely
identical to version 3. The main difference is that all commands now
take the MHS version number as the first argument. Any other arguments
have been pushed down by one (i.e. what used to be arg0 in v3 is arg1 in
v4).

Signed-off-by: Markus Mayer <mmayer@broadcom.com>
---
 drivers/memory/brcmstb_dpfe.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
diff mbox series

Patch

diff --git a/drivers/memory/brcmstb_dpfe.c b/drivers/memory/brcmstb_dpfe.c
index a44a70d028f6..97dcb3762666 100644
--- a/drivers/memory/brcmstb_dpfe.c
+++ b/drivers/memory/brcmstb_dpfe.c
@@ -37,6 +37,9 @@ 
 
 #define DRVNAME			"brcmstb-dpfe"
 
+/* Generic constants */
+#define MHS_VERSION		0x04000000
+
 /* DCPU register offsets */
 #define REG_DCPU_RESET		0x0
 #define REG_TO_DCPU_MBOX	0x10
@@ -301,6 +304,28 @@  static const struct dpfe_api dpfe_api_v3 = {
 	},
 };
 
+/* API v4 firmware commands */
+static struct dpfe_api dpfe_api_v4 = {
+	.version = 4,
+	.fw_name = NULL, /* We expect the firmware to have been downloaded! */
+	.sysfs_attrs = dpfe_v3_groups, /* Same as v3 */
+	.command = {
+		[DPFE_CMD_GET_INFO] = {
+			[MSG_HEADER] = DPFE_MSG_TYPE_COMMAND,
+			[MSG_COMMAND] = 0x0101,
+			[MSG_ARG_COUNT] = 2,
+			[MSG_ARG0] = MHS_VERSION,
+			[MSG_ARG0 + 1] = 1, /* Now the 2nd argument */
+		},
+		[DPFE_CMD_GET_REFRESH] = {
+			[MSG_HEADER] = DPFE_MSG_TYPE_COMMAND,
+			[MSG_COMMAND] = 0x0202,
+			[MSG_ARG_COUNT] = 1,
+			[MSG_ARG0] = MHS_VERSION,
+		},
+	},
+};
+
 static const char *get_error_text(unsigned int i)
 {
 	static const char * const error_text[] = {
@@ -932,6 +957,7 @@  static const struct of_device_id brcmstb_dpfe_of_match[] = {
 	{ .compatible = "brcm,dpfe-cpu-v1", .data = &dpfe_api_old_v2 },
 	{ .compatible = "brcm,dpfe-cpu-v2", .data = &dpfe_api_new_v2 },
 	{ .compatible = "brcm,dpfe-cpu-v3", .data = &dpfe_api_v3 },
+	{ .compatible = "brcm,dpfe-cpu-v4", .data = &dpfe_api_v4 },
 
 	/*
 	 * This "default" compatible string should no longer be used. It has