bus: omap_l3_noc: use of_match_data to pick up SoC information
DRA7xx SoC has the same l3-noc interconnect ip (as OMAP4 and OMAP5), but
AM437x SoC has just 2 modules instead of 3 which other SoCs have.
So, stop using direct access of array indices and use of->match data and
simplify implementation to benefit future usage.
While at it, rename a few very generic variables to make them omap
specific. This helps us differentiate from DRA7 and AM43xx data in the
future.
NOTE: None of the platforms that use omap_l3_noc are non-device tree
anymore. So, it is safe to assume OF match here.
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[nm@ti.com: split, refactor and optimize logic]
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Sekhar Nori <nsekhar@ti.com>
diff --git a/drivers/bus/omap_l3_noc.h b/drivers/bus/omap_l3_noc.h
index 66caece..e60865f 100644
--- a/drivers/bus/omap_l3_noc.h
+++ b/drivers/bus/omap_l3_noc.h
@@ -17,7 +17,9 @@
#ifndef __OMAP_L3_NOC_H
#define __OMAP_L3_NOC_H
-#define L3_MODULES 3
+#define OMAP_L3_MODULES 3
+#define MAX_L3_MODULES 3
+
#define CLEAR_STDERR_LOG (1 << 31)
#define CUSTOM_ERROR 0x2
#define STANDARD_ERROR 0x0
@@ -36,8 +38,6 @@
#define MAX_CLKDM_TARGETS 31
-#define NUM_OF_L3_MASTERS (sizeof(l3_masters)/sizeof(l3_masters[0]))
-
/**
* struct l3_masters_data - L3 Master information
* @id: ID of the L3 Master
@@ -60,13 +60,47 @@
char *name;
};
-static u32 l3_flagmux[L3_MODULES] = {
+
+/**
+ * struct omap_l3 - Description of data relevant for L3 bus.
+ * @dev: device representing the bus (populated runtime)
+ * @l3_base: base addresses of modules (populated runtime)
+ * @l3_flag_mux: array containing offsets to flag mux per module
+ * offset from corresponding module base indexed per
+ * module.
+ * @num_modules: number of clock domains / modules.
+ * @l3_masters: array pointing to master data containing name and register
+ * offset for the master.
+ * @num_master: number of masters
+ * @l3_targ: array indexed by flagmux index (bit offset) pointing to the
+ * target data. unsupported ones are marked with
+ * L3_TARGET_NOT_SUPPORTED
+ * @debug_irq: irq number of the debug interrupt (populated runtime)
+ * @app_irq: irq number of the application interrupt (populated runtime)
+ */
+struct omap_l3 {
+ struct device *dev;
+
+ void __iomem *l3_base[MAX_L3_MODULES];
+ u32 *l3_flagmux;
+ int num_modules;
+
+ struct l3_masters_data *l3_masters;
+ int num_masters;
+
+ struct l3_target_data **l3_targ;
+
+ int debug_irq;
+ int app_irq;
+};
+
+static u32 omap_l3_flagmux[OMAP_L3_MODULES] = {
0x500,
0x1000,
0X0200
};
-static struct l3_target_data l3_target_inst_data_clk1[MAX_CLKDM_TARGETS] = {
+static struct l3_target_data omap_l3_target_data_clk1[MAX_CLKDM_TARGETS] = {
{0x100, "DMM1",},
{0x200, "DMM2",},
{0x300, "ABE",},
@@ -76,7 +110,7 @@
{0x900, "L4WAKEUP",},
};
-static struct l3_target_data l3_target_inst_data_clk2[MAX_CLKDM_TARGETS] = {
+static struct l3_target_data omap_l3_target_data_clk2[MAX_CLKDM_TARGETS] = {
{0x500, "CORTEXM3",},
{0x300, "DSS",},
{0x100, "GPMC",},
@@ -100,13 +134,13 @@
{0x1700, "LLI",},
};
-static struct l3_target_data l3_target_inst_data_clk3[MAX_CLKDM_TARGETS] = {
+static struct l3_target_data omap_l3_target_data_clk3[MAX_CLKDM_TARGETS] = {
{0x0100, "EMUSS",},
{0x0300, "DEBUG SOURCE",},
{0x0, "HOST CLK3",},
};
-static struct l3_masters_data l3_masters[] = {
+static struct l3_masters_data omap_l3_masters[] = {
{ 0x0 , "MPU"},
{ 0x10, "CS_ADP"},
{ 0x14, "xxx"},
@@ -134,20 +168,18 @@
{ 0xC8, "USBHOSTFS"}
};
-static struct l3_target_data *l3_targ[L3_MODULES] = {
- l3_target_inst_data_clk1,
- l3_target_inst_data_clk2,
- l3_target_inst_data_clk3,
+static struct l3_target_data *omap_l3_targ[OMAP_L3_MODULES] = {
+ omap_l3_target_data_clk1,
+ omap_l3_target_data_clk2,
+ omap_l3_target_data_clk3,
};
-struct omap_l3 {
- struct device *dev;
-
- /* memory base */
- void __iomem *l3_base[L3_MODULES];
-
- int debug_irq;
- int app_irq;
+static const struct omap_l3 omap_l3_data = {
+ .l3_flagmux = omap_l3_flagmux,
+ .num_modules = OMAP_L3_MODULES,
+ .l3_masters = omap_l3_masters,
+ .num_masters = ARRAY_SIZE(omap_l3_masters),
+ .l3_targ = omap_l3_targ,
};
#endif /* __OMAP_L3_NOC_H */