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Diffstat (limited to 'arch/sh/kernel/cpu/sh4a/clock-sh7785.c')
-rw-r--r--arch/sh/kernel/cpu/sh4a/clock-sh7785.c182
1 files changed, 143 insertions, 39 deletions
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
index 73abfbf2f16..2d960247f3e 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
@@ -3,7 +3,7 @@
*
* SH7785 support for the clock framework
*
- * Copyright (C) 2007 - 2009 Paul Mundt
+ * Copyright (C) 2007 - 2010 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
@@ -14,6 +14,7 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/cpufreq.h>
+#include <linux/clkdev.h>
#include <asm/clock.h>
#include <asm/freq.h>
#include <cpu/sh7785.h>
@@ -23,8 +24,6 @@
* from the platform code.
*/
static struct clk extal_clk = {
- .name = "extal",
- .id = -1,
.rate = 33333333,
};
@@ -42,8 +41,6 @@ static struct clk_ops pll_clk_ops = {
};
static struct clk pll_clk = {
- .name = "pll_clk",
- .id = -1,
.ops = &pll_clk_ops,
.parent = &extal_clk,
.flags = CLK_ENABLE_ON_INIT,
@@ -57,56 +54,161 @@ static struct clk *clks[] = {
static unsigned int div2[] = { 1, 2, 4, 6, 8, 12, 16, 18,
24, 32, 36, 48 };
-static struct clk_div_mult_table div4_table = {
+static struct clk_div_mult_table div4_div_mult_table = {
.divisors = div2,
.nr_divisors = ARRAY_SIZE(div2),
};
+static struct clk_div4_table div4_table = {
+ .div_mult_table = &div4_div_mult_table,
+};
+
enum { DIV4_I, DIV4_U, DIV4_SH, DIV4_B, DIV4_DDR, DIV4_GA,
DIV4_DU, DIV4_P, DIV4_NR };
-#define DIV4(_str, _bit, _mask, _flags) \
- SH_CLK_DIV4(_str, &pll_clk, FRQMR1, _bit, _mask, _flags)
+#define DIV4(_bit, _mask, _flags) \
+ SH_CLK_DIV4(&pll_clk, FRQMR1, _bit, _mask, _flags)
struct clk div4_clks[DIV4_NR] = {
- [DIV4_P] = DIV4("peripheral_clk", 0, 0x0f80, 0),
- [DIV4_DU] = DIV4("du_clk", 4, 0x0ff0, 0),
- [DIV4_GA] = DIV4("ga_clk", 8, 0x0030, 0),
- [DIV4_DDR] = DIV4("ddr_clk", 12, 0x000c, CLK_ENABLE_ON_INIT),
- [DIV4_B] = DIV4("bus_clk", 16, 0x0fe0, CLK_ENABLE_ON_INIT),
- [DIV4_SH] = DIV4("shyway_clk", 20, 0x000c, CLK_ENABLE_ON_INIT),
- [DIV4_U] = DIV4("umem_clk", 24, 0x000c, CLK_ENABLE_ON_INIT),
- [DIV4_I] = DIV4("cpu_clk", 28, 0x000e, CLK_ENABLE_ON_INIT),
+ [DIV4_P] = DIV4(0, 0x0f80, 0),
+ [DIV4_DU] = DIV4(4, 0x0ff0, 0),
+ [DIV4_GA] = DIV4(8, 0x0030, 0),
+ [DIV4_DDR] = DIV4(12, 0x000c, CLK_ENABLE_ON_INIT),
+ [DIV4_B] = DIV4(16, 0x0fe0, CLK_ENABLE_ON_INIT),
+ [DIV4_SH] = DIV4(20, 0x000c, CLK_ENABLE_ON_INIT),
+ [DIV4_U] = DIV4(24, 0x000c, CLK_ENABLE_ON_INIT),
+ [DIV4_I] = DIV4(28, 0x000e, CLK_ENABLE_ON_INIT),
};
#define MSTPCR0 0xffc80030
#define MSTPCR1 0xffc80034
-static struct clk mstp_clks[] = {
+enum { MSTP029, MSTP028, MSTP027, MSTP026, MSTP025, MSTP024,
+ MSTP021, MSTP020, MSTP017, MSTP016,
+ MSTP013, MSTP012, MSTP009, MSTP008, MSTP003, MSTP002,
+ MSTP119, MSTP117, MSTP105, MSTP104, MSTP100,
+ MSTP_NR };
+
+static struct clk mstp_clks[MSTP_NR] = {
/* MSTPCR0 */
- SH_CLK_MSTP32("scif_fck", 5, &div4_clks[DIV4_P], MSTPCR0, 29, 0),
- SH_CLK_MSTP32("scif_fck", 4, &div4_clks[DIV4_P], MSTPCR0, 28, 0),
- SH_CLK_MSTP32("scif_fck", 3, &div4_clks[DIV4_P], MSTPCR0, 27, 0),
- SH_CLK_MSTP32("scif_fck", 2, &div4_clks[DIV4_P], MSTPCR0, 26, 0),
- SH_CLK_MSTP32("scif_fck", 1, &div4_clks[DIV4_P], MSTPCR0, 25, 0),
- SH_CLK_MSTP32("scif_fck", 0, &div4_clks[DIV4_P], MSTPCR0, 24, 0),
- SH_CLK_MSTP32("ssi_fck", 1, &div4_clks[DIV4_P], MSTPCR0, 21, 0),
- SH_CLK_MSTP32("ssi_fck", 0, &div4_clks[DIV4_P], MSTPCR0, 20, 0),
- SH_CLK_MSTP32("hac_fck", 1, &div4_clks[DIV4_P], MSTPCR0, 17, 0),
- SH_CLK_MSTP32("hac_fck", 0, &div4_clks[DIV4_P], MSTPCR0, 16, 0),
- SH_CLK_MSTP32("mmcif_fck", -1, &div4_clks[DIV4_P], MSTPCR0, 13, 0),
- SH_CLK_MSTP32("flctl_fck", -1, &div4_clks[DIV4_P], MSTPCR0, 12, 0),
- SH_CLK_MSTP32("tmu345_fck", -1, &div4_clks[DIV4_P], MSTPCR0, 9, 0),
- SH_CLK_MSTP32("tmu012_fck", -1, &div4_clks[DIV4_P], MSTPCR0, 8, 0),
- SH_CLK_MSTP32("siof_fck", -1, &div4_clks[DIV4_P], MSTPCR0, 3, 0),
- SH_CLK_MSTP32("hspi_fck", -1, &div4_clks[DIV4_P], MSTPCR0, 2, 0),
+ [MSTP029] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 29, 0),
+ [MSTP028] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 28, 0),
+ [MSTP027] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 27, 0),
+ [MSTP026] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 26, 0),
+ [MSTP025] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 25, 0),
+ [MSTP024] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 24, 0),
+ [MSTP021] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 21, 0),
+ [MSTP020] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 20, 0),
+ [MSTP017] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 17, 0),
+ [MSTP016] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 16, 0),
+ [MSTP013] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 13, 0),
+ [MSTP012] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 12, 0),
+ [MSTP009] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 9, 0),
+ [MSTP008] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 8, 0),
+ [MSTP003] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 3, 0),
+ [MSTP002] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 2, 0),
/* MSTPCR1 */
- SH_CLK_MSTP32("hudi_fck", -1, NULL, MSTPCR1, 19, 0),
- SH_CLK_MSTP32("ubc_fck", -1, NULL, MSTPCR1, 17, 0),
- SH_CLK_MSTP32("dmac_11_6_fck", -1, NULL, MSTPCR1, 5, 0),
- SH_CLK_MSTP32("dmac_5_0_fck", -1, NULL, MSTPCR1, 4, 0),
- SH_CLK_MSTP32("gdta_fck", -1, NULL, MSTPCR1, 0, 0),
+ [MSTP119] = SH_CLK_MSTP32(NULL, MSTPCR1, 19, 0),
+ [MSTP117] = SH_CLK_MSTP32(NULL, MSTPCR1, 17, 0),
+ [MSTP105] = SH_CLK_MSTP32(NULL, MSTPCR1, 5, 0),
+ [MSTP104] = SH_CLK_MSTP32(NULL, MSTPCR1, 4, 0),
+ [MSTP100] = SH_CLK_MSTP32(NULL, MSTPCR1, 0, 0),
+};
+
+#define CLKDEV_CON_ID(_id, _clk) { .con_id = _id, .clk = _clk }
+
+static struct clk_lookup lookups[] = {
+ /* main clocks */
+ CLKDEV_CON_ID("extal", &extal_clk),
+ CLKDEV_CON_ID("pll_clk", &pll_clk),
+
+ /* DIV4 clocks */
+ CLKDEV_CON_ID("peripheral_clk", &div4_clks[DIV4_P]),
+ CLKDEV_CON_ID("du_clk", &div4_clks[DIV4_DU]),
+ CLKDEV_CON_ID("ga_clk", &div4_clks[DIV4_GA]),
+ CLKDEV_CON_ID("ddr_clk", &div4_clks[DIV4_DDR]),
+ CLKDEV_CON_ID("bus_clk", &div4_clks[DIV4_B]),
+ CLKDEV_CON_ID("shyway_clk", &div4_clks[DIV4_SH]),
+ CLKDEV_CON_ID("umem_clk", &div4_clks[DIV4_U]),
+ CLKDEV_CON_ID("cpu_clk", &div4_clks[DIV4_I]),
+
+ /* MSTP32 clocks */
+ {
+ /* SCIF5 */
+ .dev_id = "sh-sci.5",
+ .con_id = "sci_fck",
+ .clk = &mstp_clks[MSTP029],
+ }, {
+ /* SCIF4 */
+ .dev_id = "sh-sci.4",
+ .con_id = "sci_fck",
+ .clk = &mstp_clks[MSTP028],
+ }, {
+ /* SCIF3 */
+ .dev_id = "sh-sci.3",
+ .con_id = "sci_fck",
+ .clk = &mstp_clks[MSTP027],
+ }, {
+ /* SCIF2 */
+ .dev_id = "sh-sci.2",
+ .con_id = "sci_fck",
+ .clk = &mstp_clks[MSTP026],
+ }, {
+ /* SCIF1 */
+ .dev_id = "sh-sci.1",
+ .con_id = "sci_fck",
+ .clk = &mstp_clks[MSTP025],
+ }, {
+ /* SCIF0 */
+ .dev_id = "sh-sci.0",
+ .con_id = "sci_fck",
+ .clk = &mstp_clks[MSTP024],
+ },
+ CLKDEV_CON_ID("ssi1_fck", &mstp_clks[MSTP021]),
+ CLKDEV_CON_ID("ssi0_fck", &mstp_clks[MSTP020]),
+ CLKDEV_CON_ID("hac1_fck", &mstp_clks[MSTP017]),
+ CLKDEV_CON_ID("hac0_fck", &mstp_clks[MSTP016]),
+ CLKDEV_CON_ID("mmcif_fck", &mstp_clks[MSTP013]),
+ CLKDEV_CON_ID("flctl_fck", &mstp_clks[MSTP012]),
+ {
+ /* TMU0 */
+ .dev_id = "sh_tmu.0",
+ .con_id = "tmu_fck",
+ .clk = &mstp_clks[MSTP008],
+ }, {
+ /* TMU1 */
+ .dev_id = "sh_tmu.1",
+ .con_id = "tmu_fck",
+ .clk = &mstp_clks[MSTP008],
+ }, {
+ /* TMU2 */
+ .dev_id = "sh_tmu.2",
+ .con_id = "tmu_fck",
+ .clk = &mstp_clks[MSTP008],
+ }, {
+ /* TMU3 */
+ .dev_id = "sh_tmu.3",
+ .con_id = "tmu_fck",
+ .clk = &mstp_clks[MSTP009],
+ }, {
+ /* TMU4 */
+ .dev_id = "sh_tmu.4",
+ .con_id = "tmu_fck",
+ .clk = &mstp_clks[MSTP009],
+ }, {
+ /* TMU5 */
+ .dev_id = "sh_tmu.5",
+ .con_id = "tmu_fck",
+ .clk = &mstp_clks[MSTP009],
+ },
+ CLKDEV_CON_ID("siof_fck", &mstp_clks[MSTP003]),
+ CLKDEV_CON_ID("hspi_fck", &mstp_clks[MSTP002]),
+ CLKDEV_CON_ID("hudi_fck", &mstp_clks[MSTP119]),
+ CLKDEV_CON_ID("ubc_fck", &mstp_clks[MSTP117]),
+ CLKDEV_CON_ID("dmac_11_6_fck", &mstp_clks[MSTP105]),
+ CLKDEV_CON_ID("dmac_5_0_fck", &mstp_clks[MSTP104]),
+ CLKDEV_CON_ID("gdta_fck", &mstp_clks[MSTP100]),
};
int __init arch_clk_init(void)
@@ -115,12 +217,14 @@ int __init arch_clk_init(void)
for (i = 0; i < ARRAY_SIZE(clks); i++)
ret |= clk_register(clks[i]);
+ for (i = 0; i < ARRAY_SIZE(lookups); i++)
+ clkdev_add(&lookups[i]);
if (!ret)
ret = sh_clk_div4_register(div4_clks, ARRAY_SIZE(div4_clks),
&div4_table);
if (!ret)
- ret = sh_clk_mstp32_register(mstp_clks, ARRAY_SIZE(mstp_clks));
+ ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
return ret;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-03 00:44:28 +0000