[RFC v4 net-next 17/17] mfd: ocelot: add external ocelot switch control

From: Colin Foster
Date: Sat Oct 08 2022 - 14:53:33 EST


Utilize the existing ocelot MFD interface to add switch functionality to
the Microsemi VSC7512 chip.

Signed-off-by: Colin Foster <colin.foster@xxxxxxxxxxxxxxxx>
---

v4
* Integrate a different patch, so now this one
- Adds the resources during this patch. Previouisly this
was done in a separate patch
- Utilize the standard {,num_}resources initializer

v3
* No change

v2
* New patch, broken out from a previous one

---
drivers/mfd/ocelot-core.c | 60 +++++++++++++++++++++++++++++++++++++++
1 file changed, 60 insertions(+)

diff --git a/drivers/mfd/ocelot-core.c b/drivers/mfd/ocelot-core.c
index 013e83173062..f35b4b2d4eec 100644
--- a/drivers/mfd/ocelot-core.c
+++ b/drivers/mfd/ocelot-core.c
@@ -45,6 +45,39 @@
#define VSC7512_SIO_CTRL_RES_START 0x710700f8
#define VSC7512_SIO_CTRL_RES_SIZE 0x00000100

+#define VSC7512_ANA_RES_START 0x71880000
+#define VSC7512_ANA_RES_SIZE 0x00010000
+
+#define VSC7512_QS_RES_START 0x71080000
+#define VSC7512_QS_RES_SIZE 0x00000100
+
+#define VSC7512_QSYS_RES_START 0x71800000
+#define VSC7512_QSYS_RES_SIZE 0x00200000
+
+#define VSC7512_REW_RES_START 0x71030000
+#define VSC7512_REW_RES_SIZE 0x00010000
+
+#define VSC7512_SYS_RES_START 0x71010000
+#define VSC7512_SYS_RES_SIZE 0x00010000
+
+#define VSC7512_S0_RES_START 0x71040000
+#define VSC7512_S1_RES_START 0x71050000
+#define VSC7512_S2_RES_START 0x71060000
+#define VCAP_RES_SIZE 0x00000400
+
+#define VSC7512_PORT_0_RES_START 0x711e0000
+#define VSC7512_PORT_1_RES_START 0x711f0000
+#define VSC7512_PORT_2_RES_START 0x71200000
+#define VSC7512_PORT_3_RES_START 0x71210000
+#define VSC7512_PORT_4_RES_START 0x71220000
+#define VSC7512_PORT_5_RES_START 0x71230000
+#define VSC7512_PORT_6_RES_START 0x71240000
+#define VSC7512_PORT_7_RES_START 0x71250000
+#define VSC7512_PORT_8_RES_START 0x71260000
+#define VSC7512_PORT_9_RES_START 0x71270000
+#define VSC7512_PORT_10_RES_START 0x71280000
+#define VSC7512_PORT_RES_SIZE 0x00010000
+
#define VSC7512_GCB_RST_SLEEP_US 100
#define VSC7512_GCB_RST_TIMEOUT_US 100000

@@ -96,6 +129,28 @@ static const struct resource vsc7512_sgpio_resources[] = {
DEFINE_RES_REG_NAMED(VSC7512_SIO_CTRL_RES_START, VSC7512_SIO_CTRL_RES_SIZE, "gcb_sio"),
};

+static const struct resource vsc7512_switch_resources[] = {
+ DEFINE_RES_REG_NAMED(VSC7512_ANA_RES_START, VSC7512_ANA_RES_SIZE, OCELOT_RES_NAME_ANA),
+ DEFINE_RES_REG_NAMED(VSC7512_QS_RES_START, VSC7512_QS_RES_SIZE, OCELOT_RES_NAME_QS),
+ DEFINE_RES_REG_NAMED(VSC7512_QSYS_RES_START, VSC7512_QSYS_RES_SIZE, OCELOT_RES_NAME_QSYS),
+ DEFINE_RES_REG_NAMED(VSC7512_REW_RES_START, VSC7512_REW_RES_SIZE, OCELOT_RES_NAME_REW),
+ DEFINE_RES_REG_NAMED(VSC7512_SYS_RES_START, VSC7512_SYS_RES_SIZE, OCELOT_RES_NAME_SYS),
+ DEFINE_RES_REG_NAMED(VSC7512_S0_RES_START, VCAP_RES_SIZE, OCELOT_RES_NAME_S0),
+ DEFINE_RES_REG_NAMED(VSC7512_S1_RES_START, VCAP_RES_SIZE, OCELOT_RES_NAME_S1),
+ DEFINE_RES_REG_NAMED(VSC7512_S2_RES_START, VCAP_RES_SIZE, OCELOT_RES_NAME_S2),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_0_RES_START, VSC7512_PORT_RES_SIZE, "port0"),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_1_RES_START, VSC7512_PORT_RES_SIZE, "port1"),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_2_RES_START, VSC7512_PORT_RES_SIZE, "port2"),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_3_RES_START, VSC7512_PORT_RES_SIZE, "port3"),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_4_RES_START, VSC7512_PORT_RES_SIZE, "port4"),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_5_RES_START, VSC7512_PORT_RES_SIZE, "port5"),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_6_RES_START, VSC7512_PORT_RES_SIZE, "port6"),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_7_RES_START, VSC7512_PORT_RES_SIZE, "port7"),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_8_RES_START, VSC7512_PORT_RES_SIZE, "port8"),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_9_RES_START, VSC7512_PORT_RES_SIZE, "port9"),
+ DEFINE_RES_REG_NAMED(VSC7512_PORT_10_RES_START, VSC7512_PORT_RES_SIZE, "port10")
+};
+
static const struct mfd_cell vsc7512_devs[] = {
{
.name = "ocelot-pinctrl",
@@ -121,6 +176,11 @@ static const struct mfd_cell vsc7512_devs[] = {
.use_of_reg = true,
.num_resources = ARRAY_SIZE(vsc7512_miim1_resources),
.resources = vsc7512_miim1_resources,
+ }, {
+ .name = "ocelot-switch",
+ .of_compatible = "mscc,vsc7512-switch",
+ .num_resources = ARRAY_SIZE(vsc7512_switch_resources),
+ .resources = vsc7512_switch_resources,
},
};

--
2.25.1