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ARM: omap2+: control: add support for auxiliary control module instances 

Control module can have multiple instances in a system, each with separate
address space and features. Add base support for these auxiliary instances,
with support for syscon and clock mappings under them.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tero Kristo 2018-03-14 15:53:10 +02:00 committed by Tony Lindgren
parent e33509c19d
commit 04dfac0906
2 changed files with 12 additions and 4 deletions
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15
arch/arm/mach-omap2/control.c
View File

@ -623,6 +623,7 @@ void __init omap3_ctrl_init(void)
struct control_init_data { struct control_init_data {
int index; int index;
void __iomem *mem;
s16 offset; s16 offset;
}; };
@ -660,15 +661,21 @@ int __init omap2_control_base_init(void)
struct device_node *np; struct device_node *np;
const struct of_device_id *match; const struct of_device_id *match;
struct control_init_data *data; struct control_init_data *data;
void __iomem *mem;
for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) { for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) {
data = (struct control_init_data *)match->data; data = (struct control_init_data *)match->data;
omap2_ctrl_base = of_iomap(np, 0); mem = of_iomap(np, 0);
if (!omap2_ctrl_base) if (!mem)
return -ENOMEM; return -ENOMEM;
omap2_ctrl_offset = data->offset; if (data->index == TI_CLKM_CTRL) {
omap2_ctrl_base = mem;
omap2_ctrl_offset = data->offset;
}
data->mem = mem;
} }
return 0; return 0;
@ -713,7 +720,7 @@ int __init omap_control_init(void)
} else { } else {
/* No scm_conf found, direct access */ /* No scm_conf found, direct access */
ret = omap2_clk_provider_init(np, data->index, NULL, ret = omap2_clk_provider_init(np, data->index, NULL,
omap2_ctrl_base); data->mem);
if (ret) if (ret)
return ret; return ret;
} }

1
include/linux/clk/ti.h
View File

@ -203,6 +203,7 @@ enum {
TI_CLKM_PRM, TI_CLKM_PRM,
TI_CLKM_SCRM, TI_CLKM_SCRM,
TI_CLKM_CTRL, TI_CLKM_CTRL,
TI_CLKM_CTRL_AUX,
TI_CLKM_PLLSS, TI_CLKM_PLLSS,
CLK_MAX_MEMMAPS CLK_MAX_MEMMAPS
}; };