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sh: Add support for SH7706/SH7710/SH7343 CPUs.
This adds support for the aforementioned CPU subtypes, and cleans up some build issues encountered as a result. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt
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Sep 27, 2006
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| /* | ||
| * arch/sh/kernel/cpu/sh3/clock-sh7706.c | ||
| * | ||
| * SH7706 support for the clock framework | ||
| * | ||
| * Copyright (C) 2006 Takashi YOSHII | ||
| * | ||
| * Based on arch/sh/kernel/cpu/sh3/clock-sh7709.c | ||
| * Copyright (C) 2005 Andriy Skulysh | ||
| * | ||
| * This file is subject to the terms and conditions of the GNU General Public | ||
| * License. See the file "COPYING" in the main directory of this archive | ||
| * for more details. | ||
| */ | ||
| #include <linux/init.h> | ||
| #include <linux/kernel.h> | ||
| #include <asm/clock.h> | ||
| #include <asm/freq.h> | ||
| #include <asm/io.h> | ||
|
|
||
| static int stc_multipliers[] = { 1, 2, 4, 1, 3, 6, 1, 1 }; | ||
| static int ifc_divisors[] = { 1, 2, 4, 1, 3, 1, 1, 1 }; | ||
| static int pfc_divisors[] = { 1, 2, 4, 1, 3, 6, 1, 1 }; | ||
|
|
||
| static void master_clk_init(struct clk *clk) | ||
| { | ||
| int frqcr = ctrl_inw(FRQCR); | ||
| int idx = ((frqcr & 0x2000) >> 11) | (frqcr & 0x0003); | ||
|
|
||
| clk->rate *= pfc_divisors[idx]; | ||
| } | ||
|
|
||
| static struct clk_ops sh7706_master_clk_ops = { | ||
| .init = master_clk_init, | ||
| }; | ||
|
|
||
| static void module_clk_recalc(struct clk *clk) | ||
| { | ||
| int frqcr = ctrl_inw(FRQCR); | ||
| int idx = ((frqcr & 0x2000) >> 11) | (frqcr & 0x0003); | ||
|
|
||
| clk->rate = clk->parent->rate / pfc_divisors[idx]; | ||
| } | ||
|
|
||
| static struct clk_ops sh7706_module_clk_ops = { | ||
| .recalc = module_clk_recalc, | ||
| }; | ||
|
|
||
| static void bus_clk_recalc(struct clk *clk) | ||
| { | ||
| int frqcr = ctrl_inw(FRQCR); | ||
| int idx = ((frqcr & 0x8000) >> 13) | ((frqcr & 0x0030) >> 4); | ||
|
|
||
| clk->rate = clk->parent->rate / stc_multipliers[idx]; | ||
| } | ||
|
|
||
| static struct clk_ops sh7706_bus_clk_ops = { | ||
| .recalc = bus_clk_recalc, | ||
| }; | ||
|
|
||
| static void cpu_clk_recalc(struct clk *clk) | ||
| { | ||
| int frqcr = ctrl_inw(FRQCR); | ||
| int idx = ((frqcr & 0x4000) >> 12) | ((frqcr & 0x000c) >> 2); | ||
|
|
||
| clk->rate = clk->parent->rate / ifc_divisors[idx]; | ||
| } | ||
|
|
||
| static struct clk_ops sh7706_cpu_clk_ops = { | ||
| .recalc = cpu_clk_recalc, | ||
| }; | ||
|
|
||
| static struct clk_ops *sh7706_clk_ops[] = { | ||
| &sh7706_master_clk_ops, | ||
| &sh7706_module_clk_ops, | ||
| &sh7706_bus_clk_ops, | ||
| &sh7706_cpu_clk_ops, | ||
| }; | ||
|
|
||
| void __init arch_init_clk_ops(struct clk_ops **ops, int idx) | ||
| { | ||
| if (idx < ARRAY_SIZE(sh7706_clk_ops)) | ||
| *ops = sh7706_clk_ops[idx]; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| * SH7710 Setup | ||
| * | ||
| * Copyright (C) 2006 Paul Mundt | ||
| * | ||
| * This file is subject to the terms and conditions of the GNU General Public | ||
| * License. See the file "COPYING" in the main directory of this archive | ||
| * for more details. | ||
| */ | ||
| #include <linux/platform_device.h> | ||
| #include <linux/init.h> | ||
| #include <linux/serial.h> | ||
| #include <asm/sci.h> | ||
|
|
||
| static struct plat_sci_port sci_platform_data[] = { | ||
| { | ||
| .mapbase = 0xa4400000, | ||
| .flags = UPF_BOOT_AUTOCONF, | ||
| .type = PORT_SCIF, | ||
| .irqs = { 52, 53, 55, 54 }, | ||
| }, { | ||
| .flags = 0, | ||
| } | ||
| }; | ||
|
|
||
| static struct platform_device sci_device = { | ||
| .name = "sh-sci", | ||
| .id = -1, | ||
| .dev = { | ||
| .platform_data = sci_platform_data, | ||
| }, | ||
| }; | ||
|
|
||
| static struct platform_device *sh7710_devices[] __initdata = { | ||
| &sci_device, | ||
| }; | ||
|
|
||
| static int __init sh7710_devices_setup(void) | ||
| { | ||
| return platform_add_devices(sh7710_devices, | ||
| ARRAY_SIZE(sh7710_devices)); | ||
| } | ||
| __initcall(sh7710_devices_setup); |
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