diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-msm/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-msm/board-halibut.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-msm/board-trout.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-msm/clock-7x01a.c | 126 | ||||
| -rw-r--r-- | arch/arm/mach-msm/clock-pcom.c | 131 | ||||
| -rw-r--r-- | arch/arm/mach-msm/clock-pcom.h | 153 | ||||
| -rw-r--r-- | arch/arm/mach-msm/clock.c | 257 | ||||
| -rw-r--r-- | arch/arm/mach-msm/clock.h | 70 | ||||
| -rw-r--r-- | arch/arm/mach-msm/devices-msm7x00.c | 47 | ||||
| -rw-r--r-- | arch/arm/mach-msm/devices.h | 5 | ||||
| -rw-r--r-- | arch/arm/mach-msm/include/mach/board.h | 5 | ||||
| -rw-r--r-- | arch/arm/mach-msm/include/mach/clk.h | 57 |
12 files changed, 651 insertions, 206 deletions
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile index 435d83cd52c2..70fa9703f437 100644 --- a/arch/arm/mach-msm/Makefile +++ b/arch/arm/mach-msm/Makefile @@ -2,7 +2,7 @@ obj-y += io.o idle.o irq.o timer.o dma.o obj-y += proc_comm.o obj-y += vreg.o obj-y += acpuclock-arm11.o -obj-y += clock.o clock-7x01a.o +obj-y += clock.o clock-pcom.o obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o obj-$(CONFIG_MSM_SMD) += last_radio_log.o diff --git a/arch/arm/mach-msm/board-halibut.c b/arch/arm/mach-msm/board-halibut.c index acc22886e340..7bd72e8f127e 100644 --- a/arch/arm/mach-msm/board-halibut.c +++ b/arch/arm/mach-msm/board-halibut.c @@ -90,7 +90,7 @@ static void __init halibut_fixup(struct machine_desc *desc, struct tag *tags, static void __init halibut_map_io(void) { msm_map_common_io(); - msm_clock_init(); + msm_clock_init(msm_clocks_7x01a, msm_num_clocks_7x01a); } MACHINE_START(HALIBUT, "Halibut Board (QCT SURF7200A)") diff --git a/arch/arm/mach-msm/board-trout.c b/arch/arm/mach-msm/board-trout.c index b88aec269df5..dca5a5f062dc 100644 --- a/arch/arm/mach-msm/board-trout.c +++ b/arch/arm/mach-msm/board-trout.c @@ -78,7 +78,7 @@ static void __init trout_map_io(void) writeb(0x80, TROUT_CPLD_BASE + 0x00); #endif - msm_clock_init(); + msm_clock_init(msm_clocks_7x01a, msm_num_clocks_7x01a); } MACHINE_START(TROUT, "HTC Dream") diff --git a/arch/arm/mach-msm/clock-7x01a.c b/arch/arm/mach-msm/clock-7x01a.c deleted file mode 100644 index 62230a3428ee..000000000000 --- a/arch/arm/mach-msm/clock-7x01a.c +++ /dev/null @@ -1,126 +0,0 @@ -/* arch/arm/mach-msm/clock-7x01a.c - * - * Clock tables for MSM7X01A - * - * Copyright (C) 2007 Google, Inc. - * Copyright (c) 2007 QUALCOMM Incorporated - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/kernel.h> -#include <linux/platform_device.h> - -#include "clock.h" -#include "devices.h" - -/* clock IDs used by the modem processor */ - -#define ACPU_CLK 0 /* Applications processor clock */ -#define ADM_CLK 1 /* Applications data mover clock */ -#define ADSP_CLK 2 /* ADSP clock */ -#define EBI1_CLK 3 /* External bus interface 1 clock */ -#define EBI2_CLK 4 /* External bus interface 2 clock */ -#define ECODEC_CLK 5 /* External CODEC clock */ -#define EMDH_CLK 6 /* External MDDI host clock */ -#define GP_CLK 7 /* General purpose clock */ -#define GRP_CLK 8 /* Graphics clock */ -#define I2C_CLK 9 /* I2C clock */ -#define ICODEC_RX_CLK 10 /* Internal CODEX RX clock */ -#define ICODEC_TX_CLK 11 /* Internal CODEX TX clock */ -#define IMEM_CLK 12 /* Internal graphics memory clock */ -#define MDC_CLK 13 /* MDDI client clock */ -#define MDP_CLK 14 /* Mobile display processor clock */ -#define PBUS_CLK 15 /* Peripheral bus clock */ -#define PCM_CLK 16 /* PCM clock */ -#define PMDH_CLK 17 /* Primary MDDI host clock */ -#define SDAC_CLK 18 /* Stereo DAC clock */ -#define SDC1_CLK 19 /* Secure Digital Card clocks */ -#define SDC1_PCLK 20 -#define SDC2_CLK 21 -#define SDC2_PCLK 22 -#define SDC3_CLK 23 -#define SDC3_PCLK 24 -#define SDC4_CLK 25 -#define SDC4_PCLK 26 -#define TSIF_CLK 27 /* Transport Stream Interface clocks */ -#define TSIF_REF_CLK 28 -#define TV_DAC_CLK 29 /* TV clocks */ -#define TV_ENC_CLK 30 -#define UART1_CLK 31 /* UART clocks */ -#define UART2_CLK 32 -#define UART3_CLK 33 -#define UART1DM_CLK 34 -#define UART2DM_CLK 35 -#define USB_HS_CLK 36 /* High speed USB core clock */ -#define USB_HS_PCLK 37 /* High speed USB pbus clock */ -#define USB_OTG_CLK 38 /* Full speed USB clock */ -#define VDC_CLK 39 /* Video controller clock */ -#define VFE_CLK 40 /* Camera / Video Front End clock */ -#define VFE_MDC_CLK 41 /* VFE MDDI client clock */ - -#define NR_CLKS 42 - -#define CLOCK(clk_name, clk_id, clk_dev, clk_flags) { \ - .name = clk_name, \ - .id = clk_id, \ - .flags = clk_flags, \ - .dev = clk_dev, \ - } - -#define OFF CLKFLAG_AUTO_OFF -#define MINMAX CLKFLAG_USE_MIN_MAX_TO_SET - -struct clk msm_clocks[] = { - CLOCK("adm_clk", ADM_CLK, NULL, 0), - CLOCK("adsp_clk", ADSP_CLK, NULL, 0), - CLOCK("ebi1_clk", EBI1_CLK, NULL, 0), - CLOCK("ebi2_clk", EBI2_CLK, NULL, 0), - CLOCK("ecodec_clk", ECODEC_CLK, NULL, 0), - CLOCK("emdh_clk", EMDH_CLK, NULL, OFF), - CLOCK("gp_clk", GP_CLK, NULL, 0), - CLOCK("grp_clk", GRP_CLK, NULL, OFF), - CLOCK("i2c_clk", I2C_CLK, &msm_device_i2c.dev, 0), - CLOCK("icodec_rx_clk", ICODEC_RX_CLK, NULL, 0), - CLOCK("icodec_tx_clk", ICODEC_TX_CLK, NULL, 0), - CLOCK("imem_clk", IMEM_CLK, NULL, OFF), - CLOCK("mdc_clk", MDC_CLK, NULL, 0), - CLOCK("mdp_clk", MDP_CLK, NULL, OFF), - CLOCK("pbus_clk", PBUS_CLK, NULL, 0), - CLOCK("pcm_clk", PCM_CLK, NULL, 0), - CLOCK("pmdh_clk", PMDH_CLK, NULL, OFF | MINMAX), - CLOCK("sdac_clk", SDAC_CLK, NULL, OFF), - CLOCK("sdc_clk", SDC1_CLK, &msm_device_sdc1.dev, OFF), - CLOCK("sdc_pclk", SDC1_PCLK, &msm_device_sdc1.dev, OFF), - CLOCK("sdc_clk", SDC2_CLK, &msm_device_sdc2.dev, OFF), - CLOCK("sdc_pclk", SDC2_PCLK, &msm_device_sdc2.dev, OFF), - CLOCK("sdc_clk", SDC3_CLK, &msm_device_sdc3.dev, OFF), - CLOCK("sdc_pclk", SDC3_PCLK, &msm_device_sdc3.dev, OFF), - CLOCK("sdc_clk", SDC4_CLK, &msm_device_sdc4.dev, OFF), - CLOCK("sdc_pclk", SDC4_PCLK, &msm_device_sdc4.dev, OFF), - CLOCK("tsif_clk", TSIF_CLK, NULL, 0), - CLOCK("tsif_ref_clk", TSIF_REF_CLK, NULL, 0), - CLOCK("tv_dac_clk", TV_DAC_CLK, NULL, 0), - CLOCK("tv_enc_clk", TV_ENC_CLK, NULL, 0), - CLOCK("uart_clk", UART1_CLK, &msm_device_uart1.dev, OFF), - CLOCK("uart_clk", UART2_CLK, &msm_device_uart2.dev, 0), - CLOCK("uart_clk", UART3_CLK, &msm_device_uart3.dev, OFF), - CLOCK("uart1dm_clk", UART1DM_CLK, NULL, OFF), - CLOCK("uart2dm_clk", UART2DM_CLK, NULL, 0), - CLOCK("usb_hs_clk", USB_HS_CLK, &msm_device_hsusb.dev, OFF), - CLOCK("usb_hs_pclk", USB_HS_PCLK, &msm_device_hsusb.dev, OFF), - CLOCK("usb_otg_clk", USB_OTG_CLK, NULL, 0), - CLOCK("vdc_clk", VDC_CLK, NULL, OFF | MINMAX), - CLOCK("vfe_clk", VFE_CLK, NULL, OFF), - CLOCK("vfe_mdc_clk", VFE_MDC_CLK, NULL, OFF), -}; - -unsigned msm_num_clocks = ARRAY_SIZE(msm_clocks); diff --git a/arch/arm/mach-msm/clock-pcom.c b/arch/arm/mach-msm/clock-pcom.c new file mode 100644 index 000000000000..a3b45627eb4a --- /dev/null +++ b/arch/arm/mach-msm/clock-pcom.c @@ -0,0 +1,131 @@ +/* + * Copyright (C) 2007 Google, Inc. + * Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/err.h> +#include <linux/ctype.h> +#include <linux/stddef.h> +#include <mach/clk.h> + +#include "proc_comm.h" +#include "clock.h" + +/* + * glue for the proc_comm interface + */ +int pc_clk_enable(unsigned id) +{ + int rc = msm_proc_comm(PCOM_CLKCTL_RPC_ENABLE, &id, NULL); + if (rc < 0) + return rc; + else + return (int)id < 0 ? -EINVAL : 0; +} + +void pc_clk_disable(unsigned id) +{ + msm_proc_comm(PCOM_CLKCTL_RPC_DISABLE, &id, NULL); +} + +int pc_clk_reset(unsigned id, enum clk_reset_action action) +{ + int rc; + + if (action == CLK_RESET_ASSERT) + rc = msm_proc_comm(PCOM_CLKCTL_RPC_RESET_ASSERT, &id, NULL); + else + rc = msm_proc_comm(PCOM_CLKCTL_RPC_RESET_DEASSERT, &id, NULL); + + if (rc < 0) + return rc; + else + return (int)id < 0 ? -EINVAL : 0; +} + +int pc_clk_set_rate(unsigned id, unsigned rate) +{ + /* The rate _might_ be rounded off to the nearest KHz value by the + * remote function. So a return value of 0 doesn't necessarily mean + * that the exact rate was set successfully. + */ + int rc = msm_proc_comm(PCOM_CLKCTL_RPC_SET_RATE, &id, &rate); + if (rc < 0) + return rc; + else + return (int)id < 0 ? -EINVAL : 0; +} + +int pc_clk_set_min_rate(unsigned id, unsigned rate) +{ + int rc = msm_proc_comm(PCOM_CLKCTL_RPC_MIN_RATE, &id, &rate); + if (rc < 0) + return rc; + else + return (int)id < 0 ? -EINVAL : 0; +} + +int pc_clk_set_max_rate(unsigned id, unsigned rate) +{ + int rc = msm_proc_comm(PCOM_CLKCTL_RPC_MAX_RATE, &id, &rate); + if (rc < 0) + return rc; + else + return (int)id < 0 ? -EINVAL : 0; +} + +int pc_clk_set_flags(unsigned id, unsigned flags) +{ + int rc = msm_proc_comm(PCOM_CLKCTL_RPC_SET_FLAGS, &id, &flags); + if (rc < 0) + return rc; + else + return (int)id < 0 ? -EINVAL : 0; +} + +unsigned pc_clk_get_rate(unsigned id) +{ + if (msm_proc_comm(PCOM_CLKCTL_RPC_RATE, &id, NULL)) + return 0; + else + return id; +} + +unsigned pc_clk_is_enabled(unsigned id) +{ + if (msm_proc_comm(PCOM_CLKCTL_RPC_ENABLED, &id, NULL)) + return 0; + else + return id; +} + +long pc_clk_round_rate(unsigned id, unsigned rate) +{ + + /* Not really supported; pc_clk_set_rate() does rounding on it's own. */ + return rate; +} + +struct clk_ops clk_ops_pcom = { + .enable = pc_clk_enable, + .disable = pc_clk_disable, + .auto_off = pc_clk_disable, + .reset = pc_clk_reset, + .set_rate = pc_clk_set_rate, + .set_min_rate = pc_clk_set_min_rate, + .set_max_rate = pc_clk_set_max_rate, + .set_flags = pc_clk_set_flags, + .get_rate = pc_clk_get_rate, + .is_enabled = pc_clk_is_enabled, + .round_rate = pc_clk_round_rate, +}; diff --git a/arch/arm/mach-msm/clock-pcom.h b/arch/arm/mach-msm/clock-pcom.h new file mode 100644 index 000000000000..17d027b23501 --- /dev/null +++ b/arch/arm/mach-msm/clock-pcom.h @@ -0,0 +1,153 @@ +/* Copyright (c) 2009, Code Aurora Forum. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of Code Aurora Forum, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef __ARCH_ARM_MACH_MSM_CLOCK_PCOM_H +#define __ARCH_ARM_MACH_MSM_CLOCK_PCOM_H + +/* clock IDs used by the modem processor */ + +#define P_ACPU_CLK 0 /* Applications processor clock */ +#define P_ADM_CLK 1 /* Applications data mover clock */ +#define P_ADSP_CLK 2 /* ADSP clock */ +#define P_EBI1_CLK 3 /* External bus interface 1 clock */ +#define P_EBI2_CLK 4 /* External bus interface 2 clock */ +#define P_ECODEC_CLK 5 /* External CODEC clock */ +#define P_EMDH_CLK 6 /* External MDDI host clock */ +#define P_GP_CLK 7 /* General purpose clock */ +#define P_GRP_3D_CLK 8 /* Graphics clock */ +#define P_I2C_CLK 9 /* I2C clock */ +#define P_ICODEC_RX_CLK 10 /* Internal CODEX RX clock */ +#define P_ICODEC_TX_CLK 11 /* Internal CODEX TX clock */ +#define P_IMEM_CLK 12 /* Internal graphics memory clock */ +#define P_MDC_CLK 13 /* MDDI client clock */ +#define P_MDP_CLK 14 /* Mobile display processor clock */ +#define P_PBUS_CLK 15 /* Peripheral bus clock */ +#define P_PCM_CLK 16 /* PCM clock */ +#define P_PMDH_CLK 17 /* Primary MDDI host clock */ +#define P_SDAC_CLK 18 /* Stereo DAC clock */ +#define P_SDC1_CLK 19 /* Secure Digital Card clocks */ +#define P_SDC1_P_CLK 20 +#define P_SDC2_CLK 21 +#define P_SDC2_P_CLK 22 +#define P_SDC3_CLK 23 +#define P_SDC3_P_CLK 24 +#define P_SDC4_CLK 25 +#define P_SDC4_P_CLK 26 +#define P_TSIF_CLK 27 /* Transport Stream Interface clocks */ +#define P_TSIF_REF_CLK 28 +#define P_TV_DAC_CLK 29 /* TV clocks */ +#define P_TV_ENC_CLK 30 +#define P_UART1_CLK 31 /* UART clocks */ +#define P_UART2_CLK 32 +#define P_UART3_CLK 33 +#define P_UART1DM_CLK 34 +#define P_UART2DM_CLK 35 +#define P_USB_HS_CLK 36 /* High speed USB core clock */ +#define P_USB_HS_P_CLK 37 /* High speed USB pbus clock */ +#define P_USB_OTG_CLK 38 /* Full speed USB clock */ +#define P_VDC_CLK 39 /* Video controller clock */ +#define P_VFE_MDC_CLK 40 /* Camera / Video Front End clock */ +#define P_VFE_CLK 41 /* VFE MDDI client clock */ +#define P_MDP_LCDC_PCLK_CLK 42 +#define P_MDP_LCDC_PAD_PCLK_CLK 43 +#define P_MDP_VSYNC_CLK 44 +#define P_SPI_CLK 45 +#define P_VFE_AXI_CLK 46 +#define P_USB_HS2_CLK 47 /* High speed USB 2 core clock */ +#define P_USB_HS2_P_CLK 48 /* High speed USB 2 pbus clock */ +#define P_USB_HS3_CLK 49 /* High speed USB 3 core clock */ +#define P_USB_HS3_P_CLK 50 /* High speed USB 3 pbus clock */ +#define P_GRP_3D_P_CLK 51 /* Graphics pbus clock */ +#define P_USB_PHY_CLK 52 /* USB PHY clock */ +#define P_USB_HS_CORE_CLK 53 /* High speed USB 1 core clock */ +#define P_USB_HS2_CORE_CLK 54 /* High speed USB 2 core clock */ +#define P_USB_HS3_CORE_CLK 55 /* High speed USB 3 core clock */ +#define P_CAM_M_CLK 56 +#define P_CAMIF_PAD_P_CLK 57 +#define P_GRP_2D_CLK 58 +#define P_GRP_2D_P_CLK 59 +#define P_I2S_CLK 60 +#define P_JPEG_CLK 61 +#define P_JPEG_P_CLK 62 +#define P_LPA_CODEC_CLK 63 +#define P_LPA_CORE_CLK 64 +#define P_LPA_P_CLK 65 +#define P_MDC_IO_CLK 66 +#define P_MDC_P_CLK 67 +#define P_MFC_CLK 68 +#define P_MFC_DIV2_CLK 69 +#define P_MFC_P_CLK 70 +#define P_QUP_I2C_CLK 71 +#define P_ROTATOR_IMEM_CLK 72 +#define P_ROTATOR_P_CLK 73 +#define P_VFE_CAMIF_CLK 74 +#define P_VFE_P_CLK 75 +#define P_VPE_CLK 76 +#define P_I2C_2_CLK 77 +#define P_MI2S_CODEC_RX_S_CLK 78 +#define P_MI2S_CODEC_RX_M_CLK 79 +#define P_MI2S_CODEC_TX_S_CLK 80 +#define P_MI2S_CODEC_TX_M_CLK 81 +#define P_PMDH_P_CLK 82 +#define P_EMDH_P_CLK 83 +#define P_SPI_P_CLK 84 +#define P_TSIF_P_CLK 85 +#define P_MDP_P_CLK 86 +#define P_SDAC_M_CLK 87 +#define P_MI2S_S_CLK 88 +#define P_MI2S_M_CLK 89 +#define P_AXI_ROTATOR_CLK 90 +#define P_HDMI_CLK 91 +#define P_CSI0_CLK 92 +#define P_CSI0_VFE_CLK 93 +#define P_CSI0_P_CLK 94 +#define P_CSI1_CLK 95 +#define P_CSI1_VFE_CLK 96 +#define P_CSI1_P_CLK 97 +#define P_GSBI_CLK 98 +#define P_GSBI_P_CLK 99 + +#define P_NR_CLKS 100 + +struct clk_ops; +extern struct clk_ops clk_ops_pcom; + +int pc_clk_reset(unsigned id, enum clk_reset_action action); + +#define CLK_PCOM(clk_name, clk_id, clk_dev, clk_flags) { \ + .name = clk_name, \ + .id = P_##clk_id, \ + .remote_id = P_##clk_id, \ + .ops = &clk_ops_pcom, \ + .flags = clk_flags, \ + .dev = clk_dev, \ + .dbg_name = #clk_id, \ + } + +#endif diff --git a/arch/arm/mach-msm/clock.c b/arch/arm/mach-msm/clock.c index 3b1ce36f1032..34c6a52af060 100644 --- a/arch/arm/mach-msm/clock.c +++ b/arch/arm/mach-msm/clock.c @@ -1,7 +1,7 @@ /* arch/arm/mach-msm/clock.c * * Copyright (C) 2007 Google, Inc. - * Copyright (c) 2007 QUALCOMM Incorporated + * Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and @@ -22,6 +22,10 @@ #include <linux/err.h> #include <linux/clk.h> #include <linux/spinlock.h> +#include <linux/debugfs.h> +#include <linux/ctype.h> +#include <linux/pm_qos_params.h> +#include <mach/clk.h> #include "clock.h" #include "proc_comm.h" @@ -29,61 +33,15 @@ static DEFINE_MUTEX(clocks_mutex); static DEFINE_SPINLOCK(clocks_lock); static LIST_HEAD(clocks); +struct clk *msm_clocks; +unsigned msm_num_clocks; /* - * glue for the proc_comm interface + * Bitmap of enabled clocks, excluding ACPU which is always + * enabled */ -static inline int pc_clk_enable(unsigned id) -{ - return msm_proc_comm(PCOM_CLKCTL_RPC_ENABLE, &id, NULL); -} - -static inline void pc_clk_disable(unsigned id) -{ - msm_proc_comm(PCOM_CLKCTL_RPC_DISABLE, &id, NULL); -} - -static inline int pc_clk_set_rate(unsigned id, unsigned rate) -{ - return msm_proc_comm(PCOM_CLKCTL_RPC_SET_RATE, &id, &rate); -} - -static inline int pc_clk_set_min_rate(unsigned id, unsigned rate) -{ - return msm_proc_comm(PCOM_CLKCTL_RPC_MIN_RATE, &id, &rate); -} - -static inline int pc_clk_set_max_rate(unsigned id, unsigned rate) -{ - return msm_proc_comm(PCOM_CLKCTL_RPC_MAX_RATE, &id, &rate); -} - -static inline int pc_clk_set_flags(unsigned id, unsigned flags) -{ - return msm_proc_comm(PCOM_CLKCTL_RPC_SET_FLAGS, &id, &flags); -} - -static inline unsigned pc_clk_get_rate(unsigned id) -{ - if (msm_proc_comm(PCOM_CLKCTL_RPC_RATE, &id, NULL)) - return 0; - else - return id; -} - -static inline unsigned pc_clk_is_enabled(unsigned id) -{ - if (msm_proc_comm(PCOM_CLKCTL_RPC_ENABLED, &id, NULL)) - return 0; - else - return id; -} - -static inline int pc_pll_request(unsigned id, unsigned on) -{ - on = !!on; - return msm_proc_comm(PCOM_CLKCTL_RPC_PLL_REQUEST, &id, &on); -} +static DECLARE_BITMAP(clock_map_enabled, NR_CLKS); +static DEFINE_SPINLOCK(clock_map_lock); /* * Standard clock functions defined in include/linux/clk.h @@ -119,8 +77,12 @@ int clk_enable(struct clk *clk) unsigned long flags; spin_lock_irqsave(&clocks_lock, flags); clk->count++; - if (clk->count == 1) - pc_clk_enable(clk->id); + if (clk->count == 1) { + clk->ops->enable(clk->id); + spin_lock(&clock_map_lock); + clock_map_enabled[BIT_WORD(clk->id)] |= BIT_MASK(clk->id); + spin_unlock(&clock_map_lock); + } spin_unlock_irqrestore(&clocks_lock, flags); return 0; } @@ -132,31 +94,54 @@ void clk_disable(struct clk *clk) spin_lock_irqsave(&clocks_lock, flags); BUG_ON(clk->count == 0); clk->count--; - if (clk->count == 0) - pc_clk_disable(clk->id); + if (clk->count == 0) { + clk->ops->disable(clk->id); + spin_lock(&clock_map_lock); + clock_map_enabled[BIT_WORD(clk->id)] &= ~BIT_MASK(clk->id); + spin_unlock(&clock_map_lock); + } spin_unlock_irqrestore(&clocks_lock, flags); } EXPORT_SYMBOL(clk_disable); +int clk_reset(struct clk *clk, enum clk_reset_action action) +{ + if (!clk->ops->reset) + clk->ops->reset = &pc_clk_reset; + return clk->ops->reset(clk->remote_id, action); +} +EXPORT_SYMBOL(clk_reset); + unsigned long clk_get_rate(struct clk *clk) { - return pc_clk_get_rate(clk->id); + return clk->ops->get_rate(clk->id); } EXPORT_SYMBOL(clk_get_rate); int clk_set_rate(struct clk *clk, unsigned long rate) { - int ret; - if (clk->flags & CLKFLAG_USE_MIN_MAX_TO_SET) { - ret = pc_clk_set_max_rate(clk->id, rate); - if (ret) - return ret; - return pc_clk_set_min_rate(clk->id, rate); - } - return pc_clk_set_rate(clk->id, rate); + return clk->ops->set_rate(clk->id, rate); } EXPORT_SYMBOL(clk_set_rate); +long clk_round_rate(struct clk *clk, unsigned long rate) +{ + return clk->ops->round_rate(clk->id, rate); +} +EXPORT_SYMBOL(clk_round_rate); + +int clk_set_min_rate(struct clk *clk, unsigned long rate) +{ + return clk->ops->set_min_rate(clk->id, rate); +} +EXPORT_SYMBOL(clk_set_min_rate); + +int clk_set_max_rate(struct clk *clk, unsigned long rate) +{ + return clk->ops->set_max_rate(clk->id, rate); +} +EXPORT_SYMBOL(clk_set_max_rate); + int clk_set_parent(struct clk *clk, struct clk *parent) { return -ENOSYS; @@ -173,22 +158,153 @@ int clk_set_flags(struct clk *clk, unsigned long flags) { if (clk == NULL || IS_ERR(clk)) return -EINVAL; - return pc_clk_set_flags(clk->id, flags); + return clk->ops->set_flags(clk->id, flags); } EXPORT_SYMBOL(clk_set_flags); +/* EBI1 is the only shared clock that several clients want to vote on as of + * this commit. If this changes in the future, then it might be better to + * make clk_min_rate handle the voting or make ebi1_clk_set_min_rate more + * generic to support different clocks. + */ +static struct clk *ebi1_clk; -void __init msm_clock_init(void) +static void __init set_clock_ops(struct clk *clk) +{ + if (!clk->ops) { + clk->ops = &clk_ops_pcom; + clk->id = clk->remote_id; + } +} + +void __init msm_clock_init(struct clk *clock_tbl, unsigned num_clocks) { unsigned n; spin_lock_init(&clocks_lock); mutex_lock(&clocks_mutex); - for (n = 0; n < msm_num_clocks; n++) + msm_clocks = clock_tbl; + msm_num_clocks = num_clocks; + for (n = 0; n < msm_num_clocks; n++) { + set_clock_ops(&msm_clocks[n]); list_add_tail(&msm_clocks[n].list, &clocks); + } mutex_unlock(&clocks_mutex); + + ebi1_clk = clk_get(NULL, "ebi1_clk"); + BUG_ON(ebi1_clk == NULL); + +} + +#if defined(CONFIG_DEBUG_FS) +static struct clk *msm_clock_get_nth(unsigned index) +{ + if (index < msm_num_clocks) + return msm_clocks + index; + else + return 0; +} + +static int clock_debug_rate_set(void *data, u64 val) +{ + struct clk *clock = data; + int ret; + + /* Only increases to max rate will succeed, but that's actually good + * for debugging purposes. So we don't check for error. */ + if (clock->flags & CLK_MAX) + clk_set_max_rate(clock, val); + if (clock->flags & CLK_MIN) + ret = clk_set_min_rate(clock, val); + else + ret = clk_set_rate(clock, val); + if (ret != 0) + printk(KERN_ERR "clk_set%s_rate failed (%d)\n", + (clock->flags & CLK_MIN) ? "_min" : "", ret); + return ret; +} + +static int clock_debug_rate_get(void *data, u64 *val) +{ + struct clk *clock = data; + *val = clk_get_rate(clock); + return 0; +} + +static int clock_debug_enable_set(void *data, u64 val) +{ + struct clk *clock = data; + int rc = 0; + + if (val) + rc = clock->ops->enable(clock->id); + else + clock->ops->disable(clock->id); + + return rc; } +static int clock_debug_enable_get(void *data, u64 *val) +{ + struct clk *clock = data; + + *val = clock->ops->is_enabled(clock->id); + + return 0; +} + +static int clock_debug_local_get(void *data, u64 *val) +{ + struct clk *clock = data; + + *val = clock->ops != &clk_ops_pcom; + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(clock_rate_fops, clock_debug_rate_get, + clock_debug_rate_set, "%llu\n"); +DEFINE_SIMPLE_ATTRIBUTE(clock_enable_fops, clock_debug_enable_get, + clock_debug_enable_set, "%llu\n"); +DEFINE_SIMPLE_ATTRIBUTE(clock_local_fops, clock_debug_local_get, + NULL, "%llu\n"); + +static int __init clock_debug_init(void) +{ + struct dentry *dent_rate, *dent_enable, *dent_local; + struct clk *clock; + unsigned n = 0; + char temp[50], *ptr; + + dent_rate = debugfs_create_dir("clk_rate", 0); + if (IS_ERR(dent_rate)) + return PTR_ERR(dent_rate); + + dent_enable = debugfs_create_dir("clk_enable", 0); + if (IS_ERR(dent_enable)) + return PTR_ERR(dent_enable); + + dent_local = debugfs_create_dir("clk_local", NULL); + if (IS_ERR(dent_local)) + return PTR_ERR(dent_local); + + while ((clock = msm_clock_get_nth(n++)) != 0) { + strncpy(temp, clock->dbg_name, ARRAY_SIZE(temp)-1); + for (ptr = temp; *ptr; ptr++) + *ptr = tolower(*ptr); + debugfs_create_file(temp, 0644, dent_rate, + clock, &clock_rate_fops); + debugfs_create_file(temp, 0644, dent_enable, + clock, &clock_enable_fops); + debugfs_create_file(temp, S_IRUGO, dent_local, + clock, &clock_local_fops); + } + return 0; +} + +device_initcall(clock_debug_init); +#endif + /* The bootloader and/or AMSS may have left various clocks enabled. * Disable any clocks that belong to us (CLKFLAG_AUTO_OFF) but have * not been explicitly enabled by a clk_enable() call. @@ -205,7 +321,7 @@ static int __init clock_late_init(void) spin_lock_irqsave(&clocks_lock, flags); if (!clk->count) { count++; - pc_clk_disable(clk->id); + clk->ops->auto_off(clk->id); } spin_unlock_irqrestore(&clocks_lock, flags); } @@ -216,3 +332,4 @@ static int __init clock_late_init(void) } late_initcall(clock_late_init); + diff --git a/arch/arm/mach-msm/clock.h b/arch/arm/mach-msm/clock.h index f875e1544e5f..598db9290422 100644 --- a/arch/arm/mach-msm/clock.h +++ b/arch/arm/mach-msm/clock.h @@ -1,7 +1,7 @@ /* arch/arm/mach-msm/clock.h * * Copyright (C) 2007 Google, Inc. - * Copyright (c) 2007 QUALCOMM Incorporated + * Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and @@ -18,6 +18,9 @@ #define __ARCH_ARM_MACH_MSM_CLOCK_H #include <linux/list.h> +#include <mach/clk.h> + +#include "clock-pcom.h" #define CLKFLAG_INVERT 0x00000001 #define CLKFLAG_NOINVERT 0x00000002 @@ -25,14 +28,32 @@ #define CLKFLAG_NORESET 0x00000008 #define CLK_FIRST_AVAILABLE_FLAG 0x00000100 -#define CLKFLAG_USE_MIN_MAX_TO_SET 0x00000200 -#define CLKFLAG_AUTO_OFF 0x00000400 +#define CLKFLAG_AUTO_OFF 0x00000200 +#define CLKFLAG_MIN 0x00000400 +#define CLKFLAG_MAX 0x00000800 + +struct clk_ops { + int (*enable)(unsigned id); + void (*disable)(unsigned id); + void (*auto_off)(unsigned id); + int (*reset)(unsigned id, enum clk_reset_action action); + int (*set_rate)(unsigned id, unsigned rate); + int (*set_min_rate)(unsigned id, unsigned rate); + int (*set_max_rate)(unsigned id, unsigned rate); + int (*set_flags)(unsigned id, unsigned flags); + unsigned (*get_rate)(unsigned id); + unsigned (*is_enabled)(unsigned id); + long (*round_rate)(unsigned id, unsigned rate); +}; struct clk { uint32_t id; + uint32_t remote_id; uint32_t count; uint32_t flags; const char *name; + struct clk_ops *ops; + const char *dbg_name; struct list_head list; struct device *dev; }; @@ -41,8 +62,47 @@ struct clk { #define A11S_CLK_SEL_ADDR (MSM_CSR_BASE + 0x104) #define A11S_VDD_SVS_PLEVEL_ADDR (MSM_CSR_BASE + 0x124) -extern struct clk msm_clocks[]; -extern unsigned msm_num_clocks; +#ifdef CONFIG_DEBUG_FS +#define CLOCK_DBG_NAME(x) .dbg_name = x, +#else +#define CLOCK_DBG_NAME(x) +#endif + +#define CLOCK(clk_name, clk_id, clk_dev, clk_flags) { \ + .name = clk_name, \ + .id = clk_id, \ + .flags = clk_flags, \ + .dev = clk_dev, \ + CLOCK_DBG_NAME(#clk_id) \ + } + +#define OFF CLKFLAG_AUTO_OFF +#define CLK_MIN CLKFLAG_MIN +#define CLK_MAX CLKFLAG_MAX +#define CLK_MINMAX (CLK_MIN | CLK_MAX) +#define NR_CLKS P_NR_CLKS + +enum { + PLL_0 = 0, + PLL_1, + PLL_2, + PLL_3, + PLL_4, + PLL_5, + PLL_6, + NUM_PLL +}; + +enum clkvote_client { + CLKVOTE_ACPUCLK = 0, + CLKVOTE_PMQOS, + CLKVOTE_MAX, +}; + +int msm_clock_require_tcxo(unsigned long *reason, int nbits); +int msm_clock_get_name(uint32_t id, char *name, uint32_t size); +int ebi1_clk_set_min_rate(enum clkvote_client client, unsigned long rate); +unsigned long clk_get_max_axi_khz(void); #endif diff --git a/arch/arm/mach-msm/devices-msm7x00.c b/arch/arm/mach-msm/devices-msm7x00.c index 982f1da60160..fde9d8f69f10 100644 --- a/arch/arm/mach-msm/devices-msm7x00.c +++ b/arch/arm/mach-msm/devices-msm7x00.c @@ -24,6 +24,8 @@ #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> + +#include "clock.h" #include <mach/mmc.h> static struct resource resources_uart1[] = { @@ -344,3 +346,48 @@ int __init msm_add_sdcc(unsigned int controller, struct mmc_platform_data *plat, return platform_device_register(pdev); } +struct clk msm_clocks_7x01a[] = { + CLK_PCOM("adm_clk", ADM_CLK, NULL, 0), + CLK_PCOM("adsp_clk", ADSP_CLK, NULL, 0), + CLK_PCOM("ebi1_clk", EBI1_CLK, NULL, 0), + CLK_PCOM("ebi2_clk", EBI2_CLK, NULL, 0), + CLK_PCOM("ecodec_clk", ECODEC_CLK, NULL, 0), + CLK_PCOM("emdh_clk", EMDH_CLK, NULL, OFF), + CLK_PCOM("gp_clk", GP_CLK, NULL, 0), + CLK_PCOM("grp_clk", GRP_3D_CLK, NULL, OFF), + CLK_PCOM("i2c_clk", I2C_CLK, &msm_device_i2c.dev, 0), + CLK_PCOM("icodec_rx_clk", ICODEC_RX_CLK, NULL, 0), + CLK_PCOM("icodec_tx_clk", ICODEC_TX_CLK, NULL, 0), + CLK_PCOM("imem_clk", IMEM_CLK, NULL, OFF), + CLK_PCOM("mdc_clk", MDC_CLK, NULL, 0), + CLK_PCOM("mdp_clk", MDP_CLK, NULL, OFF), + CLK_PCOM("pbus_clk", PBUS_CLK, NULL, 0), + CLK_PCOM("pcm_clk", PCM_CLK, NULL, 0), + CLK_PCOM("pmdh_clk", PMDH_CLK, NULL, OFF ), + CLK_PCOM("sdac_clk", SDAC_CLK, NULL, OFF), + CLK_PCOM("sdc_clk", SDC1_CLK, &msm_device_sdc1.dev, OFF), + CLK_PCOM("sdc_pclk", SDC1_P_CLK, &msm_device_sdc1.dev, OFF), + CLK_PCOM("sdc_clk", SDC2_CLK, &msm_device_sdc2.dev, OFF), + CLK_PCOM("sdc_pclk", SDC2_P_CLK, &msm_device_sdc2.dev, OFF), + CLK_PCOM("sdc_clk", SDC3_CLK, &msm_device_sdc3.dev, OFF), + CLK_PCOM("sdc_pclk", SDC3_P_CLK, &msm_device_sdc3.dev, OFF), + CLK_PCOM("sdc_clk", SDC4_CLK, &msm_device_sdc4.dev, OFF), + CLK_PCOM("sdc_pclk", SDC4_P_CLK, &msm_device_sdc4.dev, OFF), + CLK_PCOM("tsif_clk", TSIF_CLK, NULL, 0), + CLK_PCOM("tsif_ref_clk", TSIF_REF_CLK, NULL, 0), + CLK_PCOM("tv_dac_clk", TV_DAC_CLK, NULL, 0), + CLK_PCOM("tv_enc_clk", TV_ENC_CLK, NULL, 0), + CLK_PCOM("uart_clk", UART1_CLK, &msm_device_uart1.dev, OFF), + CLK_PCOM("uart_clk", UART2_CLK, &msm_device_uart2.dev, 0), + CLK_PCOM("uart_clk", UART3_CLK, &msm_device_uart3.dev, OFF), + CLK_PCOM("uart1dm_clk", UART1DM_CLK, NULL, OFF), + CLK_PCOM("uart2dm_clk", UART2DM_CLK, NULL, 0), + CLK_PCOM("usb_hs_clk", USB_HS_CLK, &msm_device_hsusb.dev, OFF), + CLK_PCOM("usb_hs_pclk", USB_HS_P_CLK, &msm_device_hsusb.dev, OFF), + CLK_PCOM("usb_otg_clk", USB_OTG_CLK, NULL, 0), + CLK_PCOM("vdc_clk", VDC_CLK, NULL, OFF ), + CLK_PCOM("vfe_clk", VFE_CLK, NULL, OFF), + CLK_PCOM("vfe_mdc_clk", VFE_MDC_CLK, NULL, OFF), +}; + +unsigned msm_num_clocks_7x01a = ARRAY_SIZE(msm_clocks_7x01a); diff --git a/arch/arm/mach-msm/devices.h b/arch/arm/mach-msm/devices.h index 0744c4a27d6a..19c5de99e20c 100644 --- a/arch/arm/mach-msm/devices.h +++ b/arch/arm/mach-msm/devices.h @@ -16,6 +16,8 @@ #ifndef __ARCH_ARM_MACH_MSM_DEVICES_H #define __ARCH_ARM_MACH_MSM_DEVICES_H +#include "clock.h" + extern struct platform_device msm_device_uart1; extern struct platform_device msm_device_uart2; extern struct platform_device msm_device_uart3; @@ -33,4 +35,7 @@ extern struct platform_device msm_device_smd; extern struct platform_device msm_device_nand; +extern struct clk msm_clocks_7x01a[]; +extern unsigned msm_num_clocks_7x01a; + #endif diff --git a/arch/arm/mach-msm/include/mach/board.h b/arch/arm/mach-msm/include/mach/board.h index 7933641c4761..e302fbdc439b 100644 --- a/arch/arm/mach-msm/include/mach/board.h +++ b/arch/arm/mach-msm/include/mach/board.h @@ -30,14 +30,15 @@ struct msm_acpu_clock_platform_data unsigned long wait_for_irq_khz; }; - +struct clk; + /* common init routines for use by arch/arm/mach-msm/board-*.c */ void __init msm_add_devices(void); void __init msm_map_common_io(void); void __init msm_init_irq(void); void __init msm_init_gpio(void); -void __init msm_clock_init(void); +void __init msm_clock_init(struct clk *clock_tbl, unsigned num_clocks); void __init msm_acpu_clock_init(struct msm_acpu_clock_platform_data *); #endif diff --git a/arch/arm/mach-msm/include/mach/clk.h b/arch/arm/mach-msm/include/mach/clk.h new file mode 100644 index 000000000000..c05ca40478c7 --- /dev/null +++ b/arch/arm/mach-msm/include/mach/clk.h @@ -0,0 +1,57 @@ +/* Copyright (c) 2009, Code Aurora Forum. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of Code Aurora Forum, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ +#ifndef __MACH_CLK_H +#define __MACH_CLK_H + +/* Magic rate value for use with PM QOS to request the board's maximum + * supported AXI rate. PM QOS will only pass positive s32 rate values + * through to the clock driver, so INT_MAX is used. + */ +#define MSM_AXI_MAX_FREQ LONG_MAX + +enum clk_reset_action { + CLK_RESET_DEASSERT = 0, + CLK_RESET_ASSERT = 1 +}; + +struct clk; + +/* Rate is minimum clock rate in Hz */ +int clk_set_min_rate(struct clk *clk, unsigned long rate); + +/* Rate is maximum clock rate in Hz */ +int clk_set_max_rate(struct clk *clk, unsigned long rate); + +/* Assert/Deassert reset to a hardware block associated with a clock */ +int clk_reset(struct clk *clk, enum clk_reset_action action); + +/* Set clock-specific configuration parameters */ +int clk_set_flags(struct clk *clk, unsigned long flags); + +#endif |