From: Rajendra Nayak <rnayak@ti.com>
To: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc: Rajendra Nayak <rnayak@ti.com>, Paul Walmsley <paul@pwsan.com>,
Benoit Cousson <b-cousson@ti.com>
Subject: [PATCH 2/5] ARM: OMAP4: PM: Basic OMAP4 clock framework
Date: Tue, 1 Dec 2009 17:57:25 +0530 [thread overview]
Message-ID: <1259670448-19840-2-git-send-email-rnayak@ti.com> (raw)
In-Reply-To: <1259670448-19840-1-git-send-email-rnayak@ti.com>
This patch registers the OMAP4430 clock
nodes with the CLKDEV framework.
Enables CLKDEV for OMAP4.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
---
arch/arm/mach-omap2/Makefile | 8 +-
arch/arm/mach-omap2/clock.c | 8 +
arch/arm/mach-omap2/clock44xx.c | 331 +++++++++++++++++++++++++++++++
arch/arm/mach-omap2/cm.h | 4 +
arch/arm/mach-omap2/gpmc.c | 2 +-
arch/arm/mach-omap2/io.c | 4 +-
arch/arm/plat-omap/Kconfig | 1 +
arch/arm/plat-omap/clock.c | 26 ---
arch/arm/plat-omap/include/mach/clock.h | 3 +
9 files changed, 354 insertions(+), 33 deletions(-)
create mode 100644 arch/arm/mach-omap2/clock44xx.c
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 8cb1677..229dac7 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -3,11 +3,12 @@
#
# Common support
-obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o
+obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o prcm.o \
+ clock.o
omap-2-3-common = irq.o sdrc.o omap_hwmod.o
-prcm-common = prcm.o powerdomain.o
-clock-common = clock.o clockdomain.o
+prcm-common = powerdomain.o
+clock-common = clockdomain.o
obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(prcm-common) $(clock-common)
obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(prcm-common) $(clock-common)
@@ -43,6 +44,7 @@ obj-$(CONFIG_ARCH_OMAP4) += cm4xxx.o
# Clock framework
obj-$(CONFIG_ARCH_OMAP2) += clock24xx.o
obj-$(CONFIG_ARCH_OMAP3) += clock34xx.o
+obj-$(CONFIG_ARCH_OMAP4) += clock44xx.o
iommu-y += iommu2.o
iommu-$(CONFIG_ARCH_OMAP3) += omap3-iommu.o
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index f2a92d6..adf1a78 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -149,6 +149,7 @@ static int _dpll_test_fint(struct clk *clk, u8 n)
* clockdomain pointer, and save it into the struct clk. Intended to be
* called during clk_register(). No return value.
*/
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
void omap2_init_clk_clkdm(struct clk *clk)
{
struct clockdomain *clkdm;
@@ -166,6 +167,7 @@ void omap2_init_clk_clkdm(struct clk *clk)
"clkdm %s\n", clk->name, clk->clkdm_name);
}
}
+#endif
/**
* omap2_init_clksel_parent - set a clksel clk's parent field from the hardware
@@ -437,8 +439,10 @@ void omap2_clk_disable(struct clk *clk)
_omap2_clk_disable(clk);
if (clk->parent)
omap2_clk_disable(clk->parent);
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
if (clk->clkdm)
omap2_clkdm_clk_disable(clk->clkdm, clk);
+#endif
}
}
@@ -448,8 +452,10 @@ int omap2_clk_enable(struct clk *clk)
int ret = 0;
if (clk->usecount++ == 0) {
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
if (clk->clkdm)
omap2_clkdm_clk_enable(clk->clkdm, clk);
+#endif
if (clk->parent) {
ret = omap2_clk_enable(clk->parent);
@@ -468,8 +474,10 @@ int omap2_clk_enable(struct clk *clk)
return ret;
err:
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
if (clk->clkdm)
omap2_clkdm_clk_disable(clk->clkdm, clk);
+#endif
clk->usecount--;
return ret;
}
diff --git a/arch/arm/mach-omap2/clock44xx.c b/arch/arm/mach-omap2/clock44xx.c
new file mode 100644
index 0000000..e015200
--- /dev/null
+++ b/arch/arm/mach-omap2/clock44xx.c
@@ -0,0 +1,331 @@
+/*
+ * OMAP4-specific clock framework functions
+ *
+ * Copyright (C) 2009 Texas Instruments, Inc.
+ *
+ * Rajendra Nayak (rnayak@ti.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#undef DEBUG
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/limits.h>
+#include <linux/bitops.h>
+
+#include <mach/clock.h>
+#include <mach/sram.h>
+#include <asm/div64.h>
+#include <asm/clkdev.h>
+
+#include <mach/sdrc.h>
+#include "clock.h"
+#include "prm.h"
+#include "prm-regbits-44xx.h"
+#include "cm.h"
+#include "cm-regbits-44xx.h"
+
+
+static const struct clkops clkops_noncore_dpll_ops;
+
+#include "clock44xx.h"
+
+struct omap_clk {
+ u32 cpu;
+ struct clk_lookup lk;
+};
+
+#define CLK(dev, con, ck, cp) \
+ { \
+ .cpu = cp, \
+ .lk = { \
+ .dev_id = dev, \
+ .con_id = con, \
+ .clk = ck, \
+ }, \
+ }
+
+#define CK_443X (1 << 0)
+
+static struct omap_clk omap44xx_clks[] = {
+ CLK(NULL, "extalt_clkin_ck", &extalt_clkin_ck, CK_443X),
+ CLK(NULL, "pad_clks_ck", &pad_clks_ck, CK_443X),
+ CLK(NULL, "pad_slimbus_core_clks_ck", &pad_slimbus_core_clks_ck, CK_443X),
+ CLK(NULL, "secure_32k_clk_src_ck", &secure_32k_clk_src_ck, CK_443X),
+ CLK(NULL, "slimbus_clk", &slimbus_clk, CK_443X),
+ CLK(NULL, "sys_32k_ck", &sys_32k_ck, CK_443X),
+ CLK(NULL, "virt_12000000_ck", &virt_12000000_ck, CK_443X),
+ CLK(NULL, "virt_13000000_ck", &virt_13000000_ck, CK_443X),
+ CLK(NULL, "virt_16800000_ck", &virt_16800000_ck, CK_443X),
+ CLK(NULL, "virt_19200000_ck", &virt_19200000_ck, CK_443X),
+ CLK(NULL, "virt_26000000_ck", &virt_26000000_ck, CK_443X),
+ CLK(NULL, "virt_27000000_ck", &virt_27000000_ck, CK_443X),
+ CLK(NULL, "virt_38400000_ck", &virt_38400000_ck, CK_443X),
+ CLK(NULL, "sys_clkin_ck", &sys_clkin_ck, CK_443X),
+ CLK(NULL, "utmi_phy_clkout_ck", &utmi_phy_clkout_ck, CK_443X),
+ CLK(NULL, "xclk60mhsp1_ck", &xclk60mhsp1_ck, CK_443X),
+ CLK(NULL, "xclk60mhsp2_ck", &xclk60mhsp2_ck, CK_443X),
+ CLK(NULL, "xclk60motg_ck", &xclk60motg_ck, CK_443X),
+ CLK(NULL, "dpll_sys_ref_clk", &dpll_sys_ref_clk, CK_443X),
+ CLK(NULL, "abe_dpll_refclk_mux_ck", &abe_dpll_refclk_mux_ck, CK_443X),
+ CLK(NULL, "dpll_abe_ck", &dpll_abe_ck, CK_443X),
+ CLK(NULL, "dpll_abe_m2x2_ck", &dpll_abe_m2x2_ck, CK_443X),
+ CLK(NULL, "abe_24m_fclk", &abe_24m_fclk, CK_443X),
+ CLK(NULL, "abe_clk", &abe_clk, CK_443X),
+ CLK(NULL, "aess_fclk", &aess_fclk, CK_443X),
+ CLK(NULL, "dpll_abe_m3_ck", &dpll_abe_m3_ck, CK_443X),
+ CLK(NULL, "core_hsd_byp_clk_mux_ck", &core_hsd_byp_clk_mux_ck, CK_443X),
+ CLK(NULL, "dpll_core_ck", &dpll_core_ck, CK_443X),
+ CLK(NULL, "dpll_core_m6_ck", &dpll_core_m6_ck, CK_443X),
+ CLK(NULL, "dbgclk_mux_ck", &dbgclk_mux_ck, CK_443X),
+ CLK(NULL, "dpll_core_m2_ck", &dpll_core_m2_ck, CK_443X),
+ CLK(NULL, "ddrphy_ck", &ddrphy_ck, CK_443X),
+ CLK(NULL, "dpll_core_m5_ck", &dpll_core_m5_ck, CK_443X),
+ CLK(NULL, "div_core_ck", &div_core_ck, CK_443X),
+ CLK(NULL, "div_iva_hs_clk", &div_iva_hs_clk, CK_443X),
+ CLK(NULL, "div_mpu_hs_clk", &div_mpu_hs_clk, CK_443X),
+ CLK(NULL, "dpll_core_m4_ck", &dpll_core_m4_ck, CK_443X),
+ CLK(NULL, "dll_clk_div_ck", &dll_clk_div_ck, CK_443X),
+ CLK(NULL, "dpll_abe_m2_ck", &dpll_abe_m2_ck, CK_443X),
+ CLK(NULL, "dpll_core_m3_ck", &dpll_core_m3_ck, CK_443X),
+ CLK(NULL, "dpll_core_m7_ck", &dpll_core_m7_ck, CK_443X),
+ CLK(NULL, "iva_hsd_byp_clk_mux_ck", &iva_hsd_byp_clk_mux_ck, CK_443X),
+ CLK(NULL, "dpll_iva_ck", &dpll_iva_ck, CK_443X),
+ CLK(NULL, "dpll_iva_m4_ck", &dpll_iva_m4_ck, CK_443X),
+ CLK(NULL, "dpll_iva_m5_ck", &dpll_iva_m5_ck, CK_443X),
+ CLK(NULL, "dpll_mpu_ck", &dpll_mpu_ck, CK_443X),
+ CLK(NULL, "dpll_mpu_m2_ck", &dpll_mpu_m2_ck, CK_443X),
+ CLK(NULL, "per_hs_clk_div_ck", &per_hs_clk_div_ck, CK_443X),
+ CLK(NULL, "per_hsd_byp_clk_mux_ck", &per_hsd_byp_clk_mux_ck, CK_443X),
+ CLK(NULL, "dpll_per_ck", &dpll_per_ck, CK_443X),
+ CLK(NULL, "dpll_per_m2_ck", &dpll_per_m2_ck, CK_443X),
+ CLK(NULL, "dpll_per_m2x2_ck", &dpll_per_m2x2_ck, CK_443X),
+ CLK(NULL, "dpll_per_m3_ck", &dpll_per_m3_ck, CK_443X),
+ CLK(NULL, "dpll_per_m4_ck", &dpll_per_m4_ck, CK_443X),
+ CLK(NULL, "dpll_per_m5_ck", &dpll_per_m5_ck, CK_443X),
+ CLK(NULL, "dpll_per_m6_ck", &dpll_per_m6_ck, CK_443X),
+ CLK(NULL, "dpll_per_m7_ck", &dpll_per_m7_ck, CK_443X),
+ CLK(NULL, "dpll_unipro_ck", &dpll_unipro_ck, CK_443X),
+ CLK(NULL, "dpll_unipro_m2x2_ck", &dpll_unipro_m2x2_ck, CK_443X),
+ CLK(NULL, "usb_hs_clk_div_ck", &usb_hs_clk_div_ck, CK_443X),
+ CLK(NULL, "dpll_usb_ck", &dpll_usb_ck, CK_443X),
+ CLK(NULL, "dpll_usb_clkdcoldo_ck", &dpll_usb_clkdcoldo_ck, CK_443X),
+ CLK(NULL, "dpll_usb_m2_ck", &dpll_usb_m2_ck, CK_443X),
+ CLK(NULL, "ducati_clk_mux_ck", &ducati_clk_mux_ck, CK_443X),
+ CLK(NULL, "func_12m_fclk", &func_12m_fclk, CK_443X),
+ CLK(NULL, "func_24m_clk", &func_24m_clk, CK_443X),
+ CLK(NULL, "func_24mc_fclk", &func_24mc_fclk, CK_443X),
+ CLK(NULL, "func_48m_fclk", &func_48m_fclk, CK_443X),
+ CLK(NULL, "func_48mc_fclk", &func_48mc_fclk, CK_443X),
+ CLK(NULL, "func_64m_fclk", &func_64m_fclk, CK_443X),
+ CLK(NULL, "func_96m_fclk", &func_96m_fclk, CK_443X),
+ CLK(NULL, "hsmmc6_fclk", &hsmmc6_fclk, CK_443X),
+ CLK(NULL, "init_60m_fclk", &init_60m_fclk, CK_443X),
+ CLK(NULL, "l3_div_ck", &l3_div_ck, CK_443X),
+ CLK(NULL, "l4_div_ck", &l4_div_ck, CK_443X),
+ CLK(NULL, "lp_clk_div_ck", &lp_clk_div_ck, CK_443X),
+ CLK(NULL, "l4_wkup_clk_mux_ck", &l4_wkup_clk_mux_ck, CK_443X),
+ CLK(NULL, "per_abe_nc_fclk", &per_abe_nc_fclk, CK_443X),
+ CLK(NULL, "mcasp2_fclk", &mcasp2_fclk, CK_443X),
+ CLK(NULL, "mcasp3_fclk", &mcasp3_fclk, CK_443X),
+ CLK(NULL, "ocp_abe_iclk", &ocp_abe_iclk, CK_443X),
+ CLK(NULL, "per_abe_24m_fclk", &per_abe_24m_fclk, CK_443X),
+ CLK(NULL, "pmd_stm_clock_mux_ck", &pmd_stm_clock_mux_ck, CK_443X),
+ CLK(NULL, "pmd_trace_clk_mux_ck", &pmd_trace_clk_mux_ck, CK_443X),
+ CLK(NULL, "syc_clk_div_ck", &syc_clk_div_ck, CK_443X),
+ CLK(NULL, "aes1_ck", &aes1_ck, CK_443X),
+ CLK(NULL, "aes2_ck", &aes2_ck, CK_443X),
+ CLK(NULL, "aess_ck", &aess_ck, CK_443X),
+ CLK(NULL, "cust_efuse_ck", &cust_efuse_ck, CK_443X),
+ CLK(NULL, "des3des_ck", &des3des_ck, CK_443X),
+ CLK(NULL, "dmic_sync_mux_ck", &dmic_sync_mux_ck, CK_443X),
+ CLK(NULL, "dmic_ck", &dmic_ck, CK_443X),
+ CLK(NULL, "dss_ck", &dss_ck, CK_443X),
+ CLK(NULL, "ducati_ck", &ducati_ck, CK_443X),
+ CLK(NULL, "emif1_ck", &emif1_ck, CK_443X),
+ CLK(NULL, "emif2_ck", &emif2_ck, CK_443X),
+ CLK(NULL, "fdif_ck", &fdif_ck, CK_443X),
+ CLK(NULL, "per_sgx_fclk", &per_sgx_fclk, CK_443X),
+ CLK(NULL, "gfx_ck", &gfx_ck, CK_443X),
+ CLK(NULL, "gpio1_ck", &gpio1_ck, CK_443X),
+ CLK(NULL, "gpio2_ck", &gpio2_ck, CK_443X),
+ CLK(NULL, "gpio3_ck", &gpio3_ck, CK_443X),
+ CLK(NULL, "gpio4_ck", &gpio4_ck, CK_443X),
+ CLK(NULL, "gpio5_ck", &gpio5_ck, CK_443X),
+ CLK(NULL, "gpio6_ck", &gpio6_ck, CK_443X),
+ CLK(NULL, "gpmc_ck", &gpmc_ck, CK_443X),
+ CLK(NULL, "gptimer1_ck", &gptimer1_ck, CK_443X),
+ CLK(NULL, "gptimer10_ck", &gptimer10_ck, CK_443X),
+ CLK(NULL, "gptimer11_ck", &gptimer11_ck, CK_443X),
+ CLK(NULL, "gptimer2_ck", &gptimer2_ck, CK_443X),
+ CLK(NULL, "gptimer3_ck", &gptimer3_ck, CK_443X),
+ CLK(NULL, "gptimer4_ck", &gptimer4_ck, CK_443X),
+ CLK(NULL, "gptimer5_ck", &gptimer5_ck, CK_443X),
+ CLK(NULL, "gptimer6_ck", &gptimer6_ck, CK_443X),
+ CLK(NULL, "gptimer7_ck", &gptimer7_ck, CK_443X),
+ CLK(NULL, "gptimer8_ck", &gptimer8_ck, CK_443X),
+ CLK(NULL, "gptimer9_ck", &gptimer9_ck, CK_443X),
+ CLK("omap2_hdq.0", "ick", &hdq1w_ck, CK_443X),
+ CLK(NULL, "hsi_ck", &hsi_ck, CK_443X),
+ CLK("i2c_omap.1", "ick", &i2c1_ck, CK_443X),
+ CLK("i2c_omap.2", "ick", &i2c2_ck, CK_443X),
+ CLK("i2c_omap.3", "ick", &i2c3_ck, CK_443X),
+ CLK("i2c_omap.4", "ick", &i2c4_ck, CK_443X),
+ CLK(NULL, "iss_ck", &iss_ck, CK_443X),
+ CLK(NULL, "ivahd_ck", &ivahd_ck, CK_443X),
+ CLK(NULL, "keyboard_ck", &keyboard_ck, CK_443X),
+ CLK(NULL, "l3_instr_interconnect_ck", &l3_instr_interconnect_ck, CK_443X),
+ CLK(NULL, "l3_interconnect_3_ck", &l3_interconnect_3_ck, CK_443X),
+ CLK(NULL, "mcasp_sync_mux_ck", &mcasp_sync_mux_ck, CK_443X),
+ CLK(NULL, "mcasp_ck", &mcasp_ck, CK_443X),
+ CLK(NULL, "mcbsp1_sync_mux_ck", &mcbsp1_sync_mux_ck, CK_443X),
+ CLK("omap-mcbsp.1", "fck", &mcbsp1_ck, CK_443X),
+ CLK(NULL, "mcbsp2_sync_mux_ck", &mcbsp2_sync_mux_ck, CK_443X),
+ CLK("omap-mcbsp.2", "fck", &mcbsp2_ck, CK_443X),
+ CLK(NULL, "mcbsp3_sync_mux_ck", &mcbsp3_sync_mux_ck, CK_443X),
+ CLK("omap-mcbsp.3", "fck", &mcbsp3_ck, CK_443X),
+ CLK(NULL, "mcbsp4_sync_mux_ck", &mcbsp4_sync_mux_ck, CK_443X),
+ CLK("omap-mcbsp.4", "fck", &mcbsp4_ck, CK_443X),
+ CLK("omap2_mcspi.1", "fck", &mcspi1_ck, CK_443X),
+ CLK("omap2_mcspi.2", "fck", &mcspi2_ck, CK_443X),
+ CLK("omap2_mcspi.3", "fck", &mcspi3_ck, CK_443X),
+ CLK("omap2_mcspi.4", "fck", &mcspi4_ck, CK_443X),
+ CLK("mmci-omap-hs.0", "fck", &mmc1_ck, CK_443X),
+ CLK("mmci-omap-hs.1", "fck", &mmc2_ck, CK_443X),
+ CLK("mmci-omap-hs.2", "fck", &mmc3_ck, CK_443X),
+ CLK("mmci-omap-hs.3", "fck", &mmc4_ck, CK_443X),
+ CLK("mmci-omap-hs.4", "fck", &mmc5_ck, CK_443X),
+ CLK(NULL, "ocp_wp1_ck", &ocp_wp1_ck, CK_443X),
+ CLK(NULL, "pdm_ck", &pdm_ck, CK_443X),
+ CLK(NULL, "pkaeip29_ck", &pkaeip29_ck, CK_443X),
+ CLK("omap_rng", "ick", &rng_ck, CK_443X),
+ CLK(NULL, "sha2md51_ck", &sha2md51_ck, CK_443X),
+ CLK(NULL, "sl2_ck", &sl2_ck, CK_443X),
+ CLK(NULL, "slimbus1_ck", &slimbus1_ck, CK_443X),
+ CLK(NULL, "slimbus2_ck", &slimbus2_ck, CK_443X),
+ CLK(NULL, "sr_core_ck", &sr_core_ck, CK_443X),
+ CLK(NULL, "sr_iva_ck", &sr_iva_ck, CK_443X),
+ CLK(NULL, "sr_mpu_ck", &sr_mpu_ck, CK_443X),
+ CLK(NULL, "tesla_ck", &tesla_ck, CK_443X),
+ CLK(NULL, "uart1_ck", &uart1_ck, CK_443X),
+ CLK(NULL, "uart2_ck", &uart2_ck, CK_443X),
+ CLK(NULL, "uart3_ck", &uart3_ck, CK_443X),
+ CLK(NULL, "uart4_ck", &uart4_ck, CK_443X),
+ CLK(NULL, "unipro1_ck", &unipro1_ck, CK_443X),
+ CLK(NULL, "usb_host_ck", &usb_host_ck, CK_443X),
+ CLK(NULL, "usb_host_fs_ck", &usb_host_fs_ck, CK_443X),
+ CLK("musb_hdrc", "ick", &usb_otg_ck, CK_443X),
+ CLK(NULL, "usb_tll_ck", &usb_tll_ck, CK_443X),
+ CLK(NULL, "usbphyocp2scp_ck", &usbphyocp2scp_ck, CK_443X),
+ CLK(NULL, "usim_ck", &usim_ck, CK_443X),
+ CLK("omap_wdt", "fck", &wdt2_ck, CK_443X),
+ CLK(NULL, "wdt3_ck", &wdt3_ck, CK_443X),
+ CLK(NULL, "otg_60m_gfclk_ck", &otg_60m_gfclk_ck, CK_443X),
+ CLK(NULL, "stm_clk_div_ck", &stm_clk_div_ck, CK_443X),
+ CLK(NULL, "trace_clk_div_ck", &trace_clk_div_ck, CK_443X),
+ CLK(NULL, "usim_fclk", &usim_fclk, CK_443X),
+ CLK(NULL, "utmi_p1_gfclk_ck", &utmi_p1_gfclk_ck, CK_443X),
+ CLK(NULL, "utmi_p2_gfclk_ck", &utmi_p2_gfclk_ck, CK_443X),
+};
+
+static struct clk_functions omap2_clk_functions = {
+ .clk_enable = omap2_clk_enable,
+ .clk_disable = omap2_clk_disable,
+ .clk_round_rate = omap2_clk_round_rate,
+ .clk_set_rate = omap2_clk_set_rate,
+ .clk_set_parent = omap2_clk_set_parent,
+ .clk_disable_unused = omap2_clk_disable_unused,
+};
+
+/*
+ * Dummy functions for DPLL control. Plan is to re-use
+ * existing OMAP3 dpll control functions.
+ */
+
+static unsigned long omap3_dpll_recalc(struct clk *clk)
+{
+ return 0;
+}
+
+static int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate)
+{
+ return 0;
+}
+
+static int omap3_noncore_dpll_enable(struct clk *clk)
+{
+ return 0;
+}
+
+static void omap3_noncore_dpll_disable(struct clk *clk)
+{
+ return;
+}
+
+static const struct clkops clkops_noncore_dpll_ops = {
+ .enable = &omap3_noncore_dpll_enable,
+ .disable = &omap3_noncore_dpll_disable,
+};
+
+void omap2_clk_prepare_for_reboot(void)
+{
+ return;
+}
+
+static int __init omap2_clk_arch_init(void)
+{
+ if (!mpurate)
+ return -EINVAL;
+
+ recalculate_root_clocks();
+ return 0;
+}
+arch_initcall(omap2_clk_arch_init);
+
+int __init omap2_clk_init(void)
+{
+ /* struct prcm_config *prcm; */
+ struct omap_clk *c;
+ /* u32 clkrate; */
+ u32 cpu_clkflg;
+
+ if (cpu_is_omap44xx()) {
+ cpu_mask = RATE_IN_4430;
+ cpu_clkflg = CK_443X;
+ }
+
+ clk_init(&omap2_clk_functions);
+
+ for (c = omap44xx_clks; c < omap44xx_clks + ARRAY_SIZE(omap44xx_clks);
+ c++)
+ clk_preinit(c->lk.clk);
+
+ for (c = omap44xx_clks; c < omap44xx_clks + ARRAY_SIZE(omap44xx_clks);
+ c++)
+ if (c->cpu & cpu_clkflg) {
+ clkdev_add(&c->lk);
+ clk_register(c->lk.clk);
+ /* TODO
+ omap2_init_clk_clkdm(c->lk.clk);
+ */
+ }
+
+ recalculate_root_clocks();
+
+ /*
+ * Only enable those clocks we will need, let the drivers
+ * enable other clocks as necessary
+ */
+ clk_enable_init_clocks();
+
+ return 0;
+}
diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index af312e6..027af00 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -97,6 +97,10 @@
/* CM2.CEFUSE_CM2 register offsets */
+/* OMAP4 modulemode control */
+#define OMAP4430_MODULEMODE_HWCTRL 0
+#define OMAP4430_MODULEMODE_SWCTRL 1
+
/* Clock management domain register get/set */
#ifndef __ASSEMBLER__
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index f3c992e..2e13741 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -490,7 +490,7 @@ void __init gpmc_init(void)
ck = "gpmc_fck";
l = OMAP34XX_GPMC_BASE;
} else if (cpu_is_omap44xx()) {
- ck = "gpmc_fck";
+ ck = "gpmc_ck";
l = OMAP44XX_GPMC_BASE;
}
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 56be87d..9ab8f8b 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -34,7 +34,6 @@
#include <mach/gpmc.h>
#include <mach/serial.h>
-#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdev is ready */
#include "clock.h"
#include <mach/omap-pm.h>
@@ -43,7 +42,6 @@
#include <mach/clockdomain.h>
#include "clockdomains.h"
-#endif
#include <mach/omap_hwmod.h>
#include "omap_hwmod_2420.h"
#include "omap_hwmod_2430.h"
@@ -301,8 +299,8 @@ void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
omap_pm_if_early_init(mpu_opps, dsp_opps, l3_opps);
pwrdm_init(powerdomains_omap);
clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
- omap2_clk_init();
#endif
+ omap2_clk_init();
omap_serial_early_init();
#ifndef CONFIG_ARCH_OMAP4
omap_hwmod_late_init();
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 64b3f52..8287b93 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -27,6 +27,7 @@ config ARCH_OMAP4
bool "TI OMAP4"
select CPU_V7
select ARM_GIC
+ select COMMON_CLKDEV
endchoice
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index bf880e9..9f99503 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -40,36 +40,10 @@ static struct clk_functions *arch_clock;
* clock framework is not up , it is defined here to avoid rework in
* every driver. Also dummy prcm reset function is added */
-/* Dummy hooks only for OMAP4.For rest OMAPs, common clkdev is used */
-#if defined(CONFIG_ARCH_OMAP4)
-struct clk *clk_get(struct device *dev, const char *id)
-{
- return NULL;
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
-
-void omap2_clk_prepare_for_reboot(void)
-{
-}
-EXPORT_SYMBOL(omap2_clk_prepare_for_reboot);
-
-void omap_prcm_arch_reset(char mode)
-{
-}
-EXPORT_SYMBOL(omap_prcm_arch_reset);
-#endif
int clk_enable(struct clk *clk)
{
unsigned long flags;
int ret = 0;
- if (cpu_is_omap44xx())
- /* OMAP4 clk framework not supported yet */
- return 0;
if (clk == NULL || IS_ERR(clk))
return -EINVAL;
diff --git a/arch/arm/plat-omap/include/mach/clock.h b/arch/arm/plat-omap/include/mach/clock.h
index 4b8b0d6..e9472c9 100644
--- a/arch/arm/plat-omap/include/mach/clock.h
+++ b/arch/arm/plat-omap/include/mach/clock.h
@@ -148,6 +148,8 @@ extern const struct clkops clkops_null;
#define CONFIG_PARTICIPANT (1 << 10) /* Fundamental clock */
#define ENABLE_ON_INIT (1 << 11) /* Enable upon framework init */
#define INVERT_ENABLE (1 << 12) /* 0 enables, 1 disables */
+#define CLOCK_IN_OMAP4430 (1 << 13)
+#define ALWAYS_ENABLED (1 << 14)
/* bits 13-31 are currently free */
/* Clksel_rate flags */
@@ -156,6 +158,7 @@ extern const struct clkops clkops_null;
#define RATE_IN_243X (1 << 2)
#define RATE_IN_343X (1 << 3) /* rates common to all 343X */
#define RATE_IN_3430ES2 (1 << 4) /* 3430ES2 rates only */
+#define RATE_IN_4430 (1 << 5)
#define RATE_IN_24XX (RATE_IN_242X | RATE_IN_243X)
--
1.5.4.7
WARNING: multiple messages have this Message-ID (diff)
From: rnayak@ti.com (Rajendra Nayak)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/5] ARM: OMAP4: PM: Basic OMAP4 clock framework
Date: Tue, 1 Dec 2009 17:57:25 +0530 [thread overview]
Message-ID: <1259670448-19840-2-git-send-email-rnayak@ti.com> (raw)
In-Reply-To: <1259670448-19840-1-git-send-email-rnayak@ti.com>
This patch registers the OMAP4430 clock
nodes with the CLKDEV framework.
Enables CLKDEV for OMAP4.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
---
arch/arm/mach-omap2/Makefile | 8 +-
arch/arm/mach-omap2/clock.c | 8 +
arch/arm/mach-omap2/clock44xx.c | 331 +++++++++++++++++++++++++++++++
arch/arm/mach-omap2/cm.h | 4 +
arch/arm/mach-omap2/gpmc.c | 2 +-
arch/arm/mach-omap2/io.c | 4 +-
arch/arm/plat-omap/Kconfig | 1 +
arch/arm/plat-omap/clock.c | 26 ---
arch/arm/plat-omap/include/mach/clock.h | 3 +
9 files changed, 354 insertions(+), 33 deletions(-)
create mode 100644 arch/arm/mach-omap2/clock44xx.c
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 8cb1677..229dac7 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -3,11 +3,12 @@
#
# Common support
-obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o
+obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o prcm.o \
+ clock.o
omap-2-3-common = irq.o sdrc.o omap_hwmod.o
-prcm-common = prcm.o powerdomain.o
-clock-common = clock.o clockdomain.o
+prcm-common = powerdomain.o
+clock-common = clockdomain.o
obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(prcm-common) $(clock-common)
obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(prcm-common) $(clock-common)
@@ -43,6 +44,7 @@ obj-$(CONFIG_ARCH_OMAP4) += cm4xxx.o
# Clock framework
obj-$(CONFIG_ARCH_OMAP2) += clock24xx.o
obj-$(CONFIG_ARCH_OMAP3) += clock34xx.o
+obj-$(CONFIG_ARCH_OMAP4) += clock44xx.o
iommu-y += iommu2.o
iommu-$(CONFIG_ARCH_OMAP3) += omap3-iommu.o
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index f2a92d6..adf1a78 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -149,6 +149,7 @@ static int _dpll_test_fint(struct clk *clk, u8 n)
* clockdomain pointer, and save it into the struct clk. Intended to be
* called during clk_register(). No return value.
*/
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
void omap2_init_clk_clkdm(struct clk *clk)
{
struct clockdomain *clkdm;
@@ -166,6 +167,7 @@ void omap2_init_clk_clkdm(struct clk *clk)
"clkdm %s\n", clk->name, clk->clkdm_name);
}
}
+#endif
/**
* omap2_init_clksel_parent - set a clksel clk's parent field from the hardware
@@ -437,8 +439,10 @@ void omap2_clk_disable(struct clk *clk)
_omap2_clk_disable(clk);
if (clk->parent)
omap2_clk_disable(clk->parent);
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
if (clk->clkdm)
omap2_clkdm_clk_disable(clk->clkdm, clk);
+#endif
}
}
@@ -448,8 +452,10 @@ int omap2_clk_enable(struct clk *clk)
int ret = 0;
if (clk->usecount++ == 0) {
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
if (clk->clkdm)
omap2_clkdm_clk_enable(clk->clkdm, clk);
+#endif
if (clk->parent) {
ret = omap2_clk_enable(clk->parent);
@@ -468,8 +474,10 @@ int omap2_clk_enable(struct clk *clk)
return ret;
err:
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdm f/w is in place */
if (clk->clkdm)
omap2_clkdm_clk_disable(clk->clkdm, clk);
+#endif
clk->usecount--;
return ret;
}
diff --git a/arch/arm/mach-omap2/clock44xx.c b/arch/arm/mach-omap2/clock44xx.c
new file mode 100644
index 0000000..e015200
--- /dev/null
+++ b/arch/arm/mach-omap2/clock44xx.c
@@ -0,0 +1,331 @@
+/*
+ * OMAP4-specific clock framework functions
+ *
+ * Copyright (C) 2009 Texas Instruments, Inc.
+ *
+ * Rajendra Nayak (rnayak at ti.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#undef DEBUG
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/limits.h>
+#include <linux/bitops.h>
+
+#include <mach/clock.h>
+#include <mach/sram.h>
+#include <asm/div64.h>
+#include <asm/clkdev.h>
+
+#include <mach/sdrc.h>
+#include "clock.h"
+#include "prm.h"
+#include "prm-regbits-44xx.h"
+#include "cm.h"
+#include "cm-regbits-44xx.h"
+
+
+static const struct clkops clkops_noncore_dpll_ops;
+
+#include "clock44xx.h"
+
+struct omap_clk {
+ u32 cpu;
+ struct clk_lookup lk;
+};
+
+#define CLK(dev, con, ck, cp) \
+ { \
+ .cpu = cp, \
+ .lk = { \
+ .dev_id = dev, \
+ .con_id = con, \
+ .clk = ck, \
+ }, \
+ }
+
+#define CK_443X (1 << 0)
+
+static struct omap_clk omap44xx_clks[] = {
+ CLK(NULL, "extalt_clkin_ck", &extalt_clkin_ck, CK_443X),
+ CLK(NULL, "pad_clks_ck", &pad_clks_ck, CK_443X),
+ CLK(NULL, "pad_slimbus_core_clks_ck", &pad_slimbus_core_clks_ck, CK_443X),
+ CLK(NULL, "secure_32k_clk_src_ck", &secure_32k_clk_src_ck, CK_443X),
+ CLK(NULL, "slimbus_clk", &slimbus_clk, CK_443X),
+ CLK(NULL, "sys_32k_ck", &sys_32k_ck, CK_443X),
+ CLK(NULL, "virt_12000000_ck", &virt_12000000_ck, CK_443X),
+ CLK(NULL, "virt_13000000_ck", &virt_13000000_ck, CK_443X),
+ CLK(NULL, "virt_16800000_ck", &virt_16800000_ck, CK_443X),
+ CLK(NULL, "virt_19200000_ck", &virt_19200000_ck, CK_443X),
+ CLK(NULL, "virt_26000000_ck", &virt_26000000_ck, CK_443X),
+ CLK(NULL, "virt_27000000_ck", &virt_27000000_ck, CK_443X),
+ CLK(NULL, "virt_38400000_ck", &virt_38400000_ck, CK_443X),
+ CLK(NULL, "sys_clkin_ck", &sys_clkin_ck, CK_443X),
+ CLK(NULL, "utmi_phy_clkout_ck", &utmi_phy_clkout_ck, CK_443X),
+ CLK(NULL, "xclk60mhsp1_ck", &xclk60mhsp1_ck, CK_443X),
+ CLK(NULL, "xclk60mhsp2_ck", &xclk60mhsp2_ck, CK_443X),
+ CLK(NULL, "xclk60motg_ck", &xclk60motg_ck, CK_443X),
+ CLK(NULL, "dpll_sys_ref_clk", &dpll_sys_ref_clk, CK_443X),
+ CLK(NULL, "abe_dpll_refclk_mux_ck", &abe_dpll_refclk_mux_ck, CK_443X),
+ CLK(NULL, "dpll_abe_ck", &dpll_abe_ck, CK_443X),
+ CLK(NULL, "dpll_abe_m2x2_ck", &dpll_abe_m2x2_ck, CK_443X),
+ CLK(NULL, "abe_24m_fclk", &abe_24m_fclk, CK_443X),
+ CLK(NULL, "abe_clk", &abe_clk, CK_443X),
+ CLK(NULL, "aess_fclk", &aess_fclk, CK_443X),
+ CLK(NULL, "dpll_abe_m3_ck", &dpll_abe_m3_ck, CK_443X),
+ CLK(NULL, "core_hsd_byp_clk_mux_ck", &core_hsd_byp_clk_mux_ck, CK_443X),
+ CLK(NULL, "dpll_core_ck", &dpll_core_ck, CK_443X),
+ CLK(NULL, "dpll_core_m6_ck", &dpll_core_m6_ck, CK_443X),
+ CLK(NULL, "dbgclk_mux_ck", &dbgclk_mux_ck, CK_443X),
+ CLK(NULL, "dpll_core_m2_ck", &dpll_core_m2_ck, CK_443X),
+ CLK(NULL, "ddrphy_ck", &ddrphy_ck, CK_443X),
+ CLK(NULL, "dpll_core_m5_ck", &dpll_core_m5_ck, CK_443X),
+ CLK(NULL, "div_core_ck", &div_core_ck, CK_443X),
+ CLK(NULL, "div_iva_hs_clk", &div_iva_hs_clk, CK_443X),
+ CLK(NULL, "div_mpu_hs_clk", &div_mpu_hs_clk, CK_443X),
+ CLK(NULL, "dpll_core_m4_ck", &dpll_core_m4_ck, CK_443X),
+ CLK(NULL, "dll_clk_div_ck", &dll_clk_div_ck, CK_443X),
+ CLK(NULL, "dpll_abe_m2_ck", &dpll_abe_m2_ck, CK_443X),
+ CLK(NULL, "dpll_core_m3_ck", &dpll_core_m3_ck, CK_443X),
+ CLK(NULL, "dpll_core_m7_ck", &dpll_core_m7_ck, CK_443X),
+ CLK(NULL, "iva_hsd_byp_clk_mux_ck", &iva_hsd_byp_clk_mux_ck, CK_443X),
+ CLK(NULL, "dpll_iva_ck", &dpll_iva_ck, CK_443X),
+ CLK(NULL, "dpll_iva_m4_ck", &dpll_iva_m4_ck, CK_443X),
+ CLK(NULL, "dpll_iva_m5_ck", &dpll_iva_m5_ck, CK_443X),
+ CLK(NULL, "dpll_mpu_ck", &dpll_mpu_ck, CK_443X),
+ CLK(NULL, "dpll_mpu_m2_ck", &dpll_mpu_m2_ck, CK_443X),
+ CLK(NULL, "per_hs_clk_div_ck", &per_hs_clk_div_ck, CK_443X),
+ CLK(NULL, "per_hsd_byp_clk_mux_ck", &per_hsd_byp_clk_mux_ck, CK_443X),
+ CLK(NULL, "dpll_per_ck", &dpll_per_ck, CK_443X),
+ CLK(NULL, "dpll_per_m2_ck", &dpll_per_m2_ck, CK_443X),
+ CLK(NULL, "dpll_per_m2x2_ck", &dpll_per_m2x2_ck, CK_443X),
+ CLK(NULL, "dpll_per_m3_ck", &dpll_per_m3_ck, CK_443X),
+ CLK(NULL, "dpll_per_m4_ck", &dpll_per_m4_ck, CK_443X),
+ CLK(NULL, "dpll_per_m5_ck", &dpll_per_m5_ck, CK_443X),
+ CLK(NULL, "dpll_per_m6_ck", &dpll_per_m6_ck, CK_443X),
+ CLK(NULL, "dpll_per_m7_ck", &dpll_per_m7_ck, CK_443X),
+ CLK(NULL, "dpll_unipro_ck", &dpll_unipro_ck, CK_443X),
+ CLK(NULL, "dpll_unipro_m2x2_ck", &dpll_unipro_m2x2_ck, CK_443X),
+ CLK(NULL, "usb_hs_clk_div_ck", &usb_hs_clk_div_ck, CK_443X),
+ CLK(NULL, "dpll_usb_ck", &dpll_usb_ck, CK_443X),
+ CLK(NULL, "dpll_usb_clkdcoldo_ck", &dpll_usb_clkdcoldo_ck, CK_443X),
+ CLK(NULL, "dpll_usb_m2_ck", &dpll_usb_m2_ck, CK_443X),
+ CLK(NULL, "ducati_clk_mux_ck", &ducati_clk_mux_ck, CK_443X),
+ CLK(NULL, "func_12m_fclk", &func_12m_fclk, CK_443X),
+ CLK(NULL, "func_24m_clk", &func_24m_clk, CK_443X),
+ CLK(NULL, "func_24mc_fclk", &func_24mc_fclk, CK_443X),
+ CLK(NULL, "func_48m_fclk", &func_48m_fclk, CK_443X),
+ CLK(NULL, "func_48mc_fclk", &func_48mc_fclk, CK_443X),
+ CLK(NULL, "func_64m_fclk", &func_64m_fclk, CK_443X),
+ CLK(NULL, "func_96m_fclk", &func_96m_fclk, CK_443X),
+ CLK(NULL, "hsmmc6_fclk", &hsmmc6_fclk, CK_443X),
+ CLK(NULL, "init_60m_fclk", &init_60m_fclk, CK_443X),
+ CLK(NULL, "l3_div_ck", &l3_div_ck, CK_443X),
+ CLK(NULL, "l4_div_ck", &l4_div_ck, CK_443X),
+ CLK(NULL, "lp_clk_div_ck", &lp_clk_div_ck, CK_443X),
+ CLK(NULL, "l4_wkup_clk_mux_ck", &l4_wkup_clk_mux_ck, CK_443X),
+ CLK(NULL, "per_abe_nc_fclk", &per_abe_nc_fclk, CK_443X),
+ CLK(NULL, "mcasp2_fclk", &mcasp2_fclk, CK_443X),
+ CLK(NULL, "mcasp3_fclk", &mcasp3_fclk, CK_443X),
+ CLK(NULL, "ocp_abe_iclk", &ocp_abe_iclk, CK_443X),
+ CLK(NULL, "per_abe_24m_fclk", &per_abe_24m_fclk, CK_443X),
+ CLK(NULL, "pmd_stm_clock_mux_ck", &pmd_stm_clock_mux_ck, CK_443X),
+ CLK(NULL, "pmd_trace_clk_mux_ck", &pmd_trace_clk_mux_ck, CK_443X),
+ CLK(NULL, "syc_clk_div_ck", &syc_clk_div_ck, CK_443X),
+ CLK(NULL, "aes1_ck", &aes1_ck, CK_443X),
+ CLK(NULL, "aes2_ck", &aes2_ck, CK_443X),
+ CLK(NULL, "aess_ck", &aess_ck, CK_443X),
+ CLK(NULL, "cust_efuse_ck", &cust_efuse_ck, CK_443X),
+ CLK(NULL, "des3des_ck", &des3des_ck, CK_443X),
+ CLK(NULL, "dmic_sync_mux_ck", &dmic_sync_mux_ck, CK_443X),
+ CLK(NULL, "dmic_ck", &dmic_ck, CK_443X),
+ CLK(NULL, "dss_ck", &dss_ck, CK_443X),
+ CLK(NULL, "ducati_ck", &ducati_ck, CK_443X),
+ CLK(NULL, "emif1_ck", &emif1_ck, CK_443X),
+ CLK(NULL, "emif2_ck", &emif2_ck, CK_443X),
+ CLK(NULL, "fdif_ck", &fdif_ck, CK_443X),
+ CLK(NULL, "per_sgx_fclk", &per_sgx_fclk, CK_443X),
+ CLK(NULL, "gfx_ck", &gfx_ck, CK_443X),
+ CLK(NULL, "gpio1_ck", &gpio1_ck, CK_443X),
+ CLK(NULL, "gpio2_ck", &gpio2_ck, CK_443X),
+ CLK(NULL, "gpio3_ck", &gpio3_ck, CK_443X),
+ CLK(NULL, "gpio4_ck", &gpio4_ck, CK_443X),
+ CLK(NULL, "gpio5_ck", &gpio5_ck, CK_443X),
+ CLK(NULL, "gpio6_ck", &gpio6_ck, CK_443X),
+ CLK(NULL, "gpmc_ck", &gpmc_ck, CK_443X),
+ CLK(NULL, "gptimer1_ck", &gptimer1_ck, CK_443X),
+ CLK(NULL, "gptimer10_ck", &gptimer10_ck, CK_443X),
+ CLK(NULL, "gptimer11_ck", &gptimer11_ck, CK_443X),
+ CLK(NULL, "gptimer2_ck", &gptimer2_ck, CK_443X),
+ CLK(NULL, "gptimer3_ck", &gptimer3_ck, CK_443X),
+ CLK(NULL, "gptimer4_ck", &gptimer4_ck, CK_443X),
+ CLK(NULL, "gptimer5_ck", &gptimer5_ck, CK_443X),
+ CLK(NULL, "gptimer6_ck", &gptimer6_ck, CK_443X),
+ CLK(NULL, "gptimer7_ck", &gptimer7_ck, CK_443X),
+ CLK(NULL, "gptimer8_ck", &gptimer8_ck, CK_443X),
+ CLK(NULL, "gptimer9_ck", &gptimer9_ck, CK_443X),
+ CLK("omap2_hdq.0", "ick", &hdq1w_ck, CK_443X),
+ CLK(NULL, "hsi_ck", &hsi_ck, CK_443X),
+ CLK("i2c_omap.1", "ick", &i2c1_ck, CK_443X),
+ CLK("i2c_omap.2", "ick", &i2c2_ck, CK_443X),
+ CLK("i2c_omap.3", "ick", &i2c3_ck, CK_443X),
+ CLK("i2c_omap.4", "ick", &i2c4_ck, CK_443X),
+ CLK(NULL, "iss_ck", &iss_ck, CK_443X),
+ CLK(NULL, "ivahd_ck", &ivahd_ck, CK_443X),
+ CLK(NULL, "keyboard_ck", &keyboard_ck, CK_443X),
+ CLK(NULL, "l3_instr_interconnect_ck", &l3_instr_interconnect_ck, CK_443X),
+ CLK(NULL, "l3_interconnect_3_ck", &l3_interconnect_3_ck, CK_443X),
+ CLK(NULL, "mcasp_sync_mux_ck", &mcasp_sync_mux_ck, CK_443X),
+ CLK(NULL, "mcasp_ck", &mcasp_ck, CK_443X),
+ CLK(NULL, "mcbsp1_sync_mux_ck", &mcbsp1_sync_mux_ck, CK_443X),
+ CLK("omap-mcbsp.1", "fck", &mcbsp1_ck, CK_443X),
+ CLK(NULL, "mcbsp2_sync_mux_ck", &mcbsp2_sync_mux_ck, CK_443X),
+ CLK("omap-mcbsp.2", "fck", &mcbsp2_ck, CK_443X),
+ CLK(NULL, "mcbsp3_sync_mux_ck", &mcbsp3_sync_mux_ck, CK_443X),
+ CLK("omap-mcbsp.3", "fck", &mcbsp3_ck, CK_443X),
+ CLK(NULL, "mcbsp4_sync_mux_ck", &mcbsp4_sync_mux_ck, CK_443X),
+ CLK("omap-mcbsp.4", "fck", &mcbsp4_ck, CK_443X),
+ CLK("omap2_mcspi.1", "fck", &mcspi1_ck, CK_443X),
+ CLK("omap2_mcspi.2", "fck", &mcspi2_ck, CK_443X),
+ CLK("omap2_mcspi.3", "fck", &mcspi3_ck, CK_443X),
+ CLK("omap2_mcspi.4", "fck", &mcspi4_ck, CK_443X),
+ CLK("mmci-omap-hs.0", "fck", &mmc1_ck, CK_443X),
+ CLK("mmci-omap-hs.1", "fck", &mmc2_ck, CK_443X),
+ CLK("mmci-omap-hs.2", "fck", &mmc3_ck, CK_443X),
+ CLK("mmci-omap-hs.3", "fck", &mmc4_ck, CK_443X),
+ CLK("mmci-omap-hs.4", "fck", &mmc5_ck, CK_443X),
+ CLK(NULL, "ocp_wp1_ck", &ocp_wp1_ck, CK_443X),
+ CLK(NULL, "pdm_ck", &pdm_ck, CK_443X),
+ CLK(NULL, "pkaeip29_ck", &pkaeip29_ck, CK_443X),
+ CLK("omap_rng", "ick", &rng_ck, CK_443X),
+ CLK(NULL, "sha2md51_ck", &sha2md51_ck, CK_443X),
+ CLK(NULL, "sl2_ck", &sl2_ck, CK_443X),
+ CLK(NULL, "slimbus1_ck", &slimbus1_ck, CK_443X),
+ CLK(NULL, "slimbus2_ck", &slimbus2_ck, CK_443X),
+ CLK(NULL, "sr_core_ck", &sr_core_ck, CK_443X),
+ CLK(NULL, "sr_iva_ck", &sr_iva_ck, CK_443X),
+ CLK(NULL, "sr_mpu_ck", &sr_mpu_ck, CK_443X),
+ CLK(NULL, "tesla_ck", &tesla_ck, CK_443X),
+ CLK(NULL, "uart1_ck", &uart1_ck, CK_443X),
+ CLK(NULL, "uart2_ck", &uart2_ck, CK_443X),
+ CLK(NULL, "uart3_ck", &uart3_ck, CK_443X),
+ CLK(NULL, "uart4_ck", &uart4_ck, CK_443X),
+ CLK(NULL, "unipro1_ck", &unipro1_ck, CK_443X),
+ CLK(NULL, "usb_host_ck", &usb_host_ck, CK_443X),
+ CLK(NULL, "usb_host_fs_ck", &usb_host_fs_ck, CK_443X),
+ CLK("musb_hdrc", "ick", &usb_otg_ck, CK_443X),
+ CLK(NULL, "usb_tll_ck", &usb_tll_ck, CK_443X),
+ CLK(NULL, "usbphyocp2scp_ck", &usbphyocp2scp_ck, CK_443X),
+ CLK(NULL, "usim_ck", &usim_ck, CK_443X),
+ CLK("omap_wdt", "fck", &wdt2_ck, CK_443X),
+ CLK(NULL, "wdt3_ck", &wdt3_ck, CK_443X),
+ CLK(NULL, "otg_60m_gfclk_ck", &otg_60m_gfclk_ck, CK_443X),
+ CLK(NULL, "stm_clk_div_ck", &stm_clk_div_ck, CK_443X),
+ CLK(NULL, "trace_clk_div_ck", &trace_clk_div_ck, CK_443X),
+ CLK(NULL, "usim_fclk", &usim_fclk, CK_443X),
+ CLK(NULL, "utmi_p1_gfclk_ck", &utmi_p1_gfclk_ck, CK_443X),
+ CLK(NULL, "utmi_p2_gfclk_ck", &utmi_p2_gfclk_ck, CK_443X),
+};
+
+static struct clk_functions omap2_clk_functions = {
+ .clk_enable = omap2_clk_enable,
+ .clk_disable = omap2_clk_disable,
+ .clk_round_rate = omap2_clk_round_rate,
+ .clk_set_rate = omap2_clk_set_rate,
+ .clk_set_parent = omap2_clk_set_parent,
+ .clk_disable_unused = omap2_clk_disable_unused,
+};
+
+/*
+ * Dummy functions for DPLL control. Plan is to re-use
+ * existing OMAP3 dpll control functions.
+ */
+
+static unsigned long omap3_dpll_recalc(struct clk *clk)
+{
+ return 0;
+}
+
+static int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate)
+{
+ return 0;
+}
+
+static int omap3_noncore_dpll_enable(struct clk *clk)
+{
+ return 0;
+}
+
+static void omap3_noncore_dpll_disable(struct clk *clk)
+{
+ return;
+}
+
+static const struct clkops clkops_noncore_dpll_ops = {
+ .enable = &omap3_noncore_dpll_enable,
+ .disable = &omap3_noncore_dpll_disable,
+};
+
+void omap2_clk_prepare_for_reboot(void)
+{
+ return;
+}
+
+static int __init omap2_clk_arch_init(void)
+{
+ if (!mpurate)
+ return -EINVAL;
+
+ recalculate_root_clocks();
+ return 0;
+}
+arch_initcall(omap2_clk_arch_init);
+
+int __init omap2_clk_init(void)
+{
+ /* struct prcm_config *prcm; */
+ struct omap_clk *c;
+ /* u32 clkrate; */
+ u32 cpu_clkflg;
+
+ if (cpu_is_omap44xx()) {
+ cpu_mask = RATE_IN_4430;
+ cpu_clkflg = CK_443X;
+ }
+
+ clk_init(&omap2_clk_functions);
+
+ for (c = omap44xx_clks; c < omap44xx_clks + ARRAY_SIZE(omap44xx_clks);
+ c++)
+ clk_preinit(c->lk.clk);
+
+ for (c = omap44xx_clks; c < omap44xx_clks + ARRAY_SIZE(omap44xx_clks);
+ c++)
+ if (c->cpu & cpu_clkflg) {
+ clkdev_add(&c->lk);
+ clk_register(c->lk.clk);
+ /* TODO
+ omap2_init_clk_clkdm(c->lk.clk);
+ */
+ }
+
+ recalculate_root_clocks();
+
+ /*
+ * Only enable those clocks we will need, let the drivers
+ * enable other clocks as necessary
+ */
+ clk_enable_init_clocks();
+
+ return 0;
+}
diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index af312e6..027af00 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -97,6 +97,10 @@
/* CM2.CEFUSE_CM2 register offsets */
+/* OMAP4 modulemode control */
+#define OMAP4430_MODULEMODE_HWCTRL 0
+#define OMAP4430_MODULEMODE_SWCTRL 1
+
/* Clock management domain register get/set */
#ifndef __ASSEMBLER__
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index f3c992e..2e13741 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -490,7 +490,7 @@ void __init gpmc_init(void)
ck = "gpmc_fck";
l = OMAP34XX_GPMC_BASE;
} else if (cpu_is_omap44xx()) {
- ck = "gpmc_fck";
+ ck = "gpmc_ck";
l = OMAP44XX_GPMC_BASE;
}
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 56be87d..9ab8f8b 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -34,7 +34,6 @@
#include <mach/gpmc.h>
#include <mach/serial.h>
-#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdev is ready */
#include "clock.h"
#include <mach/omap-pm.h>
@@ -43,7 +42,6 @@
#include <mach/clockdomain.h>
#include "clockdomains.h"
-#endif
#include <mach/omap_hwmod.h>
#include "omap_hwmod_2420.h"
#include "omap_hwmod_2430.h"
@@ -301,8 +299,8 @@ void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
omap_pm_if_early_init(mpu_opps, dsp_opps, l3_opps);
pwrdm_init(powerdomains_omap);
clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
- omap2_clk_init();
#endif
+ omap2_clk_init();
omap_serial_early_init();
#ifndef CONFIG_ARCH_OMAP4
omap_hwmod_late_init();
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 64b3f52..8287b93 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -27,6 +27,7 @@ config ARCH_OMAP4
bool "TI OMAP4"
select CPU_V7
select ARM_GIC
+ select COMMON_CLKDEV
endchoice
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index bf880e9..9f99503 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -40,36 +40,10 @@ static struct clk_functions *arch_clock;
* clock framework is not up , it is defined here to avoid rework in
* every driver. Also dummy prcm reset function is added */
-/* Dummy hooks only for OMAP4.For rest OMAPs, common clkdev is used */
-#if defined(CONFIG_ARCH_OMAP4)
-struct clk *clk_get(struct device *dev, const char *id)
-{
- return NULL;
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
-
-void omap2_clk_prepare_for_reboot(void)
-{
-}
-EXPORT_SYMBOL(omap2_clk_prepare_for_reboot);
-
-void omap_prcm_arch_reset(char mode)
-{
-}
-EXPORT_SYMBOL(omap_prcm_arch_reset);
-#endif
int clk_enable(struct clk *clk)
{
unsigned long flags;
int ret = 0;
- if (cpu_is_omap44xx())
- /* OMAP4 clk framework not supported yet */
- return 0;
if (clk == NULL || IS_ERR(clk))
return -EINVAL;
diff --git a/arch/arm/plat-omap/include/mach/clock.h b/arch/arm/plat-omap/include/mach/clock.h
index 4b8b0d6..e9472c9 100644
--- a/arch/arm/plat-omap/include/mach/clock.h
+++ b/arch/arm/plat-omap/include/mach/clock.h
@@ -148,6 +148,8 @@ extern const struct clkops clkops_null;
#define CONFIG_PARTICIPANT (1 << 10) /* Fundamental clock */
#define ENABLE_ON_INIT (1 << 11) /* Enable upon framework init */
#define INVERT_ENABLE (1 << 12) /* 0 enables, 1 disables */
+#define CLOCK_IN_OMAP4430 (1 << 13)
+#define ALWAYS_ENABLED (1 << 14)
/* bits 13-31 are currently free */
/* Clksel_rate flags */
@@ -156,6 +158,7 @@ extern const struct clkops clkops_null;
#define RATE_IN_243X (1 << 2)
#define RATE_IN_343X (1 << 3) /* rates common to all 343X */
#define RATE_IN_3430ES2 (1 << 4) /* 3430ES2 rates only */
+#define RATE_IN_4430 (1 << 5)
#define RATE_IN_24XX (RATE_IN_242X | RATE_IN_243X)
--
1.5.4.7
next prev parent reply other threads:[~2009-12-01 12:27 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-01 12:27 [PATCH 1/5] ARM: OMAP4: PM: Complete OMAP4 clock tree modelling Rajendra Nayak
2009-12-01 12:27 ` Rajendra Nayak
2009-12-01 12:27 ` Rajendra Nayak [this message]
2009-12-01 12:27 ` [PATCH 2/5] ARM: OMAP4: PM: Basic OMAP4 clock framework Rajendra Nayak
2009-12-01 12:27 ` [PATCH 3/5] ARM: OMAP4: PM: Move DPLL control apis to dpll.c Rajendra Nayak
2009-12-01 12:27 ` Rajendra Nayak
2009-12-01 12:27 ` [PATCH 4/5] ARM: OMAP4: PM: Add support for OMAP4 dpll api's Rajendra Nayak
2009-12-01 12:27 ` Rajendra Nayak
2009-12-01 12:27 ` [PATCH 5/5] ARM: OMAP4: PM: Add init api for DPLL nodes Rajendra Nayak
2009-12-01 12:27 ` Rajendra Nayak
2009-12-02 7:01 ` [PATCH 3/5] ARM: OMAP4: PM: Move DPLL control apis to dpll.c Shilimkar, Santosh
2009-12-02 7:01 ` Shilimkar, Santosh
2009-12-02 7:01 ` [PATCH 2/5] ARM: OMAP4: PM: Basic OMAP4 clock framework Shilimkar, Santosh
2009-12-02 7:01 ` Shilimkar, Santosh
2009-12-01 12:41 ` [PATCH 1/5] ARM: OMAP4: PM: Complete OMAP4 clock tree modelling Russell King - ARM Linux
2009-12-01 12:41 ` Russell King - ARM Linux
2009-12-01 12:51 ` Paul Walmsley
2009-12-01 12:51 ` Paul Walmsley
2009-12-01 13:30 ` Russell King - ARM Linux
2009-12-01 13:30 ` Russell King - ARM Linux
2009-12-03 10:11 ` Paul Walmsley
2009-12-03 10:11 ` Paul Walmsley
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