[PATCH] ARM: OMAP: TI816X: add clock domain support for TI816x
From: Aida Mynzhasova
Date: Sat Aug 24 2013 - 10:02:41 EST
This patch adds required definitions and structures for clockdomain
initialization, so omap3xxx_clockdomains_init() was substituted by
new ti81xx_clockdomains_init() while early initialization of
TI81XX platform.
signed-off-by: Aida Mynzhasova <aida.mynzhasova@xxxxxxxxxx>
---
arch/arm/mach-omap2/Makefile | 2 +
arch/arm/mach-omap2/clockdomain.h | 1 +
arch/arm/mach-omap2/clockdomains_ti81xx_data.c | 208 +++++++++++++++++++++++++
arch/arm/mach-omap2/cm-regbits-ti81xx.h | 22 +++
arch/arm/mach-omap2/cm_ti81xx.h | 61 ++++++++
arch/arm/mach-omap2/io.c | 2 +-
6 files changed, 295 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/mach-omap2/clockdomains_ti81xx_data.c
create mode 100644 arch/arm/mach-omap2/cm-regbits-ti81xx.h
create mode 100644 arch/arm/mach-omap2/cm_ti81xx.h
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index d4f6715..44c19b5 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -157,6 +157,8 @@ obj-$(CONFIG_ARCH_OMAP4) += $(clockdomain-common)
obj-$(CONFIG_ARCH_OMAP4) += clockdomains44xx_data.o
obj-$(CONFIG_SOC_AM33XX) += $(clockdomain-common)
obj-$(CONFIG_SOC_AM33XX) += clockdomains33xx_data.o
+obj-$(CONFIG_SOC_TI81XX) += $(clockdomain-common)
+obj-$(CONFIG_SOC_TI81XX) += clockdomains_ti81xx_data.o
obj-$(CONFIG_SOC_AM43XX) += $(clockdomain-common)
obj-$(CONFIG_SOC_OMAP5) += $(clockdomain-common)
obj-$(CONFIG_SOC_OMAP5) += clockdomains54xx_data.o
diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index daeecf1..5c42bcf 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -215,6 +215,7 @@ extern void __init omap242x_clockdomains_init(void);
extern void __init omap243x_clockdomains_init(void);
extern void __init omap3xxx_clockdomains_init(void);
extern void __init am33xx_clockdomains_init(void);
+extern void __init ti81xx_clockdomains_init(void);
extern void __init omap44xx_clockdomains_init(void);
extern void __init omap54xx_clockdomains_init(void);
diff --git a/arch/arm/mach-omap2/clockdomains_ti81xx_data.c b/arch/arm/mach-omap2/clockdomains_ti81xx_data.c
new file mode 100644
index 0000000..94d7439
--- /dev/null
+++ b/arch/arm/mach-omap2/clockdomains_ti81xx_data.c
@@ -0,0 +1,208 @@
+/*
+ * TI81XX Clock Domain data.
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc. - http://www.ti.com/
+ * Copyright (C) 2013 SKTB SKiT, http://www.skitlab.ru/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP2_CLOCKDOMAINS_TI81XX_H
+#define __ARCH_ARM_MACH_OMAP2_CLOCKDOMAINS_TI81XX_H
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+
+#include "clockdomain.h"
+
+#include "cm_ti81xx.h"
+#include "cm-regbits-ti81xx.h"
+
+/*
+ * - Add other domains as required
+ * - Fill up associated powerdomans (especially ALWON powerdomains are NULL at
+ * the moment
+ * - Consider dependencies across domains (probably not applicable till now)
+ */
+
+/* Common TI81XX */
+static struct clockdomain alwon_l3_slow_ti81xx_clkdm = {
+ .name = "alwon_l3_slow_clkdm",
+ .pwrdm = { .name = "alwon_pwrdm" },
+ .cm_inst = TI81XX_CM_ALWON_MOD,
+ .clkdm_offs = TI81XX_CM_ALWON_L3_SLOW_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain alwon_l3_med_ti81xx_clkdm = {
+ .name = "alwon_l3_med_clkdm",
+ .pwrdm = { .name = "alwon_pwrdm" },
+ .cm_inst = TI81XX_CM_ALWON_MOD,
+ .clkdm_offs = TI81XX_CM_ALWON_L3_MED_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain alwon_l3_fast_ti81xx_clkdm = {
+ .name = "alwon_l3_fast_clkdm",
+ .pwrdm = { .name = "alwon_pwrdm" },
+ .cm_inst = TI81XX_CM_ALWON_MOD,
+ .clkdm_offs = TI81XX_CM_ALWON_L3_FAST_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain alwon_ethernet_ti81xx_clkdm = {
+ .name = "alwon_ethernet_clkdm",
+ .pwrdm = { .name = "alwon_pwrdm" },
+ .cm_inst = TI81XX_CM_ALWON_MOD,
+ .clkdm_offs = TI81XX_CM_ETHERNET_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+/* OCMC clock domain */
+static struct clockdomain mmu_ti81xx_clkdm = {
+ .name = "mmu_clkdm",
+ .pwrdm = { .name = "alwon_pwrdm" },
+ .cm_inst = TI81XX_CM_ALWON_MOD,
+ .clkdm_offs = TI81XX_CM_MMU_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain mmu_cfg_ti81xx_clkdm = {
+ .name = "mmu_cfg_clkdm",
+ .pwrdm = { .name = "alwon_pwrdm" },
+ .cm_inst = TI81XX_CM_ALWON_MOD,
+ .clkdm_offs = TI81XX_CM_MMUCFG_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+/* TI816X only */
+static struct clockdomain alwon_mpu_ti816x_clkdm = {
+ .name = "alwon_mpu_clkdm",
+ .pwrdm = { .name = "alwon_pwrdm" },
+ .cm_inst = TI81XX_CM_ALWON_MOD,
+ .clkdm_offs = TI81XX_CM_ALWON_MPU_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain active_gem_ti816x_clkdm = {
+ .name = "active_gem_clkdm",
+ .pwrdm = { .name = "active_pwrdm" },
+ .cm_inst = TI816X_CM_ACTIVE_MOD,
+ .clkdm_offs = TI816X_CM_ACTIVE_GEM_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain ivahd0_ti816x_clkdm = {
+ .name = "ivahd0_clkdm",
+ .pwrdm = { .name = "ivahd0_pwrdm" },
+ .cm_inst = TI816X_CM_IVAHD0_MOD,
+ .clkdm_offs = TI816X_CM_IVAHD0_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain ivahd1_ti816x_clkdm = {
+ .name = "ivahd1_clkdm",
+ .pwrdm = { .name = "ivahd1_pwrdm" },
+ .cm_inst = TI816X_CM_IVAHD1_MOD,
+ .clkdm_offs = TI816X_CM_IVAHD1_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain ivahd2_ti816x_clkdm = {
+ .name = "ivahd2_clkdm",
+ .pwrdm = { .name = "ivahd2_pwrdm" },
+ .cm_inst = TI816X_CM_IVAHD2_MOD,
+ .clkdm_offs = TI816X_CM_IVAHD2_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain sgx_ti816x_clkdm = {
+ .name = "sgx_clkdm",
+ .pwrdm = { .name = "sgx_pwrdm" },
+ .cm_inst = TI816X_CM_SGX_MOD,
+ .clkdm_offs = TI816X_CM_SGX_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain default_l3_med_ti816x_clkdm = {
+ .name = "default_l3_med_clkdm",
+ .pwrdm = { .name = "default_pwrdm" },
+ .cm_inst = TI816X_CM_DEFAULT_MOD,
+ .clkdm_offs = TI816X_CM_DEFAULT_L3_MED_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain default_ducati_ti816x_clkdm = {
+ .name = "default_ducati_clkdm",
+ .pwrdm = { .name = "default_pwrdm" },
+ .cm_inst = TI816X_CM_DEFAULT_MOD,
+ .clkdm_offs = TI816X_CM_DEFAULT_DUCATI_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain default_pcie_ti816x_clkdm = {
+ .name = "default_pcie_clkdm",
+ .pwrdm = { .name = "default_pwrdm" },
+ .cm_inst = TI816X_CM_DEFAULT_MOD,
+ .clkdm_offs = TI816X_CM_DEFAULT_PCI_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain default_usb_ti816x_clkdm = {
+ .name = "default_usb_clkdm",
+ .pwrdm = { .name = "default_pwrdm" },
+ .cm_inst = TI816X_CM_DEFAULT_MOD,
+ .clkdm_offs = TI816X_CM_DEFAULT_L3_SLOW_CLKDM,
+ .clktrctrl_mask = TI81XX_CLKTRCTRL_MASK,
+ .flags = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain *clockdomains_ti81xx[] __initdata = {
+ &alwon_mpu_ti816x_clkdm,
+ &alwon_l3_slow_ti81xx_clkdm,
+ &alwon_l3_med_ti81xx_clkdm,
+ &alwon_l3_fast_ti81xx_clkdm,
+ &alwon_ethernet_ti81xx_clkdm,
+ &mmu_ti81xx_clkdm,
+ &mmu_cfg_ti81xx_clkdm,
+ &active_gem_ti816x_clkdm,
+ &ivahd0_ti816x_clkdm,
+ &ivahd1_ti816x_clkdm,
+ &ivahd2_ti816x_clkdm,
+ &sgx_ti816x_clkdm,
+ &default_l3_med_ti816x_clkdm,
+ &default_ducati_ti816x_clkdm,
+ &default_pcie_ti816x_clkdm,
+ &default_usb_ti816x_clkdm,
+ NULL,
+};
+
+void __init ti81xx_clockdomains_init(void)
+{
+ clkdm_register_platform_funcs(&omap3_clkdm_operations);
+ clkdm_register_clkdms(clockdomains_ti81xx);
+ clkdm_complete_init();
+}
+#endif
diff --git a/arch/arm/mach-omap2/cm-regbits-ti81xx.h b/arch/arm/mach-omap2/cm-regbits-ti81xx.h
new file mode 100644
index 0000000..b2f7b19
--- /dev/null
+++ b/arch/arm/mach-omap2/cm-regbits-ti81xx.h
@@ -0,0 +1,22 @@
+/*
+ * Clock Domain register bits for TI81xx.
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc. - http://www.ti.com/
+ * Copyright (C) 2013 SKTB SKiT, http://www.skitlab.ru/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP2_CM_REGBITS_TI81XX_H
+#define __ARCH_ARM_MACH_OMAP2_CM_REGBITS_TI81XX_H
+
+#define TI81XX_CLKTRCTRL_MASK (3 << 0)
+
+#endif
diff --git a/arch/arm/mach-omap2/cm_ti81xx.h b/arch/arm/mach-omap2/cm_ti81xx.h
new file mode 100644
index 0000000..9abd0f9
--- /dev/null
+++ b/arch/arm/mach-omap2/cm_ti81xx.h
@@ -0,0 +1,61 @@
+/*
+ * Clock domain register offsets for TI81XX.
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc. - http://www.ti.com/
+ * Copyright (C) 2013 SKTB SKiT, http://www.skitlab.ru/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP2_CM_TI81XX_H
+#define __ARCH_ARM_MACH_OMAP2_CM_TI81XX_H
+
+/* TI81XX common CM module offsets */
+#define TI81XX_CM_ALWON_MOD 0x1400 /* 1KB */
+
+/* TI816X CM module offsets */
+#define TI816X_CM_ACTIVE_MOD 0x0400 /* 256B */
+#define TI816X_CM_DEFAULT_MOD 0x0500 /* 256B */
+#define TI816X_CM_IVAHD0_MOD 0x0600 /* 256B */
+#define TI816X_CM_IVAHD1_MOD 0x0700 /* 256B */
+#define TI816X_CM_IVAHD2_MOD 0x0800 /* 256B */
+#define TI816X_CM_SGX_MOD 0x0900 /* 256B */
+
+/* ALWON */
+#define TI81XX_CM_ALWON_MPU_CLKDM 0x001C
+#define TI81XX_CM_ALWON_L3_SLOW_CLKDM 0x0000
+#define TI81XX_CM_ALWON_L3_MED_CLKDM 0x0004
+#define TI81XX_CM_ALWON_L3_FAST_CLKDM 0x0030
+#define TI81XX_CM_ETHERNET_CLKDM 0x0004
+#define TI81XX_CM_MMU_CLKDM 0x000C
+#define TI81XX_CM_MMUCFG_CLKDM 0x0010
+
+/* ACTIVE */
+#define TI816X_CM_ACTIVE_GEM_CLKDM 0x0000
+
+/* IVAHD0 */
+#define TI816X_CM_IVAHD0_CLKDM 0x0000
+
+/* IVAHD1 */
+#define TI816X_CM_IVAHD1_CLKDM 0x0000
+
+/* IVAHD2 */
+#define TI816X_CM_IVAHD2_CLKDM 0x0000
+
+/* SGX */
+#define TI816X_CM_SGX_CLKDM 0x0000
+
+/* DEFAULT */
+#define TI816X_CM_DEFAULT_L3_MED_CLKDM 0x0004
+#define TI816X_CM_DEFAULT_DUCATI_CLKDM 0x0018
+#define TI816X_CM_DEFAULT_PCI_CLKDM 0x0010
+#define TI816X_CM_DEFAULT_L3_SLOW_CLKDM 0x0014
+
+#endif
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 4a3f06f..83d95a9 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -517,7 +517,7 @@ void __init ti81xx_init_early(void)
ti81xx_check_features();
omap3xxx_voltagedomains_init();
omap3xxx_powerdomains_init();
- omap3xxx_clockdomains_init();
+ ti81xx_clockdomains_init();
omap3xxx_hwmod_init();
omap_hwmod_init_postsetup();
omap_clk_init = omap3xxx_clk_init;
--
1.8.1.2
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