Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar: "The main changes in this cycle are: - Intel SOC driver updates, by Aubrey Li. - TS5500 platform updates, by Vivien Didelot" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/pmc_atom: Silence shift wrapping warnings in pmc_sleep_tmr_show() x86/pmc_atom: Expose PMC device state and platform sleep state x86/pmc_atom: Eisable a few S0ix wake up events for S0ix residency x86/platform: New Intel Atom SOC power management controller driver x86/platform/ts5500: Add support for TS-5400 boards x86/platform/ts5500: Add a 'name' sysfs attribute x86/platform/ts5500: Use the DEVICE_ATTR_RO() macro
This commit is contained in:
Linus Torvalds
commit
8556d44fee
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@ -30,6 +30,13 @@ Description:
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the corresponding bit is set. For instance, 0x0e means jumpers
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2, 3 and 4 are set.
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What: /sys/devices/platform/ts5500/name
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Date: July 2014
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KernelVersion: 3.16
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Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com>
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Description:
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Model name of the TS board, e.g. "TS-5500".
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What: /sys/devices/platform/ts5500/rs485
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Date: January 2013
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KernelVersion: 3.7
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|
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@ -2404,6 +2404,10 @@ config IOSF_MBI
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default m
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depends on PCI
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config PMC_ATOM
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def_bool y
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depends on PCI
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source "net/Kconfig"
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source "drivers/Kconfig"
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@ -0,0 +1,107 @@
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/*
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* Intel Atom SOC Power Management Controller Header File
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* Copyright (c) 2014, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope 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.
|
||||
*
|
||||
*/
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#ifndef PMC_ATOM_H
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#define PMC_ATOM_H
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/* ValleyView Power Control Unit PCI Device ID */
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#define PCI_DEVICE_ID_VLV_PMC 0x0F1C
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/* PMC Memory mapped IO registers */
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#define PMC_BASE_ADDR_OFFSET 0x44
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#define PMC_BASE_ADDR_MASK 0xFFFFFE00
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#define PMC_MMIO_REG_LEN 0x100
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#define PMC_REG_BIT_WIDTH 32
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/* BIOS uses FUNC_DIS to disable specific function */
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#define PMC_FUNC_DIS 0x34
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#define PMC_FUNC_DIS_2 0x38
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/* S0ix wake event control */
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#define PMC_S0IX_WAKE_EN 0x3C
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#define BIT_LPC_CLOCK_RUN BIT(4)
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#define BIT_SHARED_IRQ_GPSC BIT(5)
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#define BIT_ORED_DEDICATED_IRQ_GPSS BIT(18)
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#define BIT_ORED_DEDICATED_IRQ_GPSC BIT(19)
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#define BIT_SHARED_IRQ_GPSS BIT(20)
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#define PMC_WAKE_EN_SETTING ~(BIT_LPC_CLOCK_RUN | \
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BIT_SHARED_IRQ_GPSC | \
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BIT_ORED_DEDICATED_IRQ_GPSS | \
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BIT_ORED_DEDICATED_IRQ_GPSC | \
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BIT_SHARED_IRQ_GPSS)
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/* The timers acumulate time spent in sleep state */
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#define PMC_S0IR_TMR 0x80
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#define PMC_S0I1_TMR 0x84
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#define PMC_S0I2_TMR 0x88
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#define PMC_S0I3_TMR 0x8C
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#define PMC_S0_TMR 0x90
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/* Sleep state counter is in units of of 32us */
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#define PMC_TMR_SHIFT 5
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/* These registers reflect D3 status of functions */
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#define PMC_D3_STS_0 0xA0
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#define BIT_LPSS1_F0_DMA BIT(0)
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#define BIT_LPSS1_F1_PWM1 BIT(1)
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#define BIT_LPSS1_F2_PWM2 BIT(2)
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#define BIT_LPSS1_F3_HSUART1 BIT(3)
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#define BIT_LPSS1_F4_HSUART2 BIT(4)
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#define BIT_LPSS1_F5_SPI BIT(5)
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#define BIT_LPSS1_F6_XXX BIT(6)
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#define BIT_LPSS1_F7_XXX BIT(7)
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#define BIT_SCC_EMMC BIT(8)
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#define BIT_SCC_SDIO BIT(9)
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#define BIT_SCC_SDCARD BIT(10)
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#define BIT_SCC_MIPI BIT(11)
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#define BIT_HDA BIT(12)
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#define BIT_LPE BIT(13)
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#define BIT_OTG BIT(14)
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#define BIT_USH BIT(15)
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#define BIT_GBE BIT(16)
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#define BIT_SATA BIT(17)
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#define BIT_USB_EHCI BIT(18)
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#define BIT_SEC BIT(19)
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#define BIT_PCIE_PORT0 BIT(20)
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#define BIT_PCIE_PORT1 BIT(21)
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#define BIT_PCIE_PORT2 BIT(22)
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#define BIT_PCIE_PORT3 BIT(23)
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#define BIT_LPSS2_F0_DMA BIT(24)
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#define BIT_LPSS2_F1_I2C1 BIT(25)
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#define BIT_LPSS2_F2_I2C2 BIT(26)
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#define BIT_LPSS2_F3_I2C3 BIT(27)
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#define BIT_LPSS2_F4_I2C4 BIT(28)
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#define BIT_LPSS2_F5_I2C5 BIT(29)
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#define BIT_LPSS2_F6_I2C6 BIT(30)
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#define BIT_LPSS2_F7_I2C7 BIT(31)
|
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|
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#define PMC_D3_STS_1 0xA4
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#define BIT_SMB BIT(0)
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#define BIT_OTG_SS_PHY BIT(1)
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#define BIT_USH_SS_PHY BIT(2)
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||||
#define BIT_DFX BIT(3)
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|
||||
/* PMC I/O Registers */
|
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#define ACPI_BASE_ADDR_OFFSET 0x40
|
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#define ACPI_BASE_ADDR_MASK 0xFFFFFE00
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#define ACPI_MMIO_REG_LEN 0x100
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|
||||
#define PM1_CNT 0x4
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||||
#define SLEEP_TYPE_MASK 0xFFFFECFF
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||||
#define SLEEP_TYPE_S5 0x1C00
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#define SLEEP_ENABLE 0x2000
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#endif /* PMC_ATOM_H */
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||||
|
|
@ -106,6 +106,7 @@ obj-$(CONFIG_EFI) += sysfb_efi.o
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|||
obj-$(CONFIG_PERF_EVENTS) += perf_regs.o
|
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obj-$(CONFIG_TRACING) += tracepoint.o
|
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obj-$(CONFIG_IOSF_MBI) += iosf_mbi.o
|
||||
obj-$(CONFIG_PMC_ATOM) += pmc_atom.o
|
||||
|
||||
###
|
||||
# 64 bit specific files
|
||||
|
|
|
|||
|
|
@ -0,0 +1,321 @@
|
|||
/*
|
||||
* Intel Atom SOC Power Management Controller Driver
|
||||
* Copyright (c) 2014, Intel Corporation.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope 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.
|
||||
*
|
||||
*/
|
||||
|
||||
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/debugfs.h>
|
||||
#include <linux/seq_file.h>
|
||||
#include <linux/io.h>
|
||||
|
||||
#include <asm/pmc_atom.h>
|
||||
|
||||
#define DRIVER_NAME KBUILD_MODNAME
|
||||
|
||||
struct pmc_dev {
|
||||
u32 base_addr;
|
||||
void __iomem *regmap;
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
struct dentry *dbgfs_dir;
|
||||
#endif /* CONFIG_DEBUG_FS */
|
||||
};
|
||||
|
||||
static struct pmc_dev pmc_device;
|
||||
static u32 acpi_base_addr;
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||||
|
||||
struct pmc_dev_map {
|
||||
const char *name;
|
||||
u32 bit_mask;
|
||||
};
|
||||
|
||||
static const struct pmc_dev_map dev_map[] = {
|
||||
{"0 - LPSS1_F0_DMA", BIT_LPSS1_F0_DMA},
|
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{"1 - LPSS1_F1_PWM1", BIT_LPSS1_F1_PWM1},
|
||||
{"2 - LPSS1_F2_PWM2", BIT_LPSS1_F2_PWM2},
|
||||
{"3 - LPSS1_F3_HSUART1", BIT_LPSS1_F3_HSUART1},
|
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{"4 - LPSS1_F4_HSUART2", BIT_LPSS1_F4_HSUART2},
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{"5 - LPSS1_F5_SPI", BIT_LPSS1_F5_SPI},
|
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{"6 - LPSS1_F6_Reserved", BIT_LPSS1_F6_XXX},
|
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{"7 - LPSS1_F7_Reserved", BIT_LPSS1_F7_XXX},
|
||||
{"8 - SCC_EMMC", BIT_SCC_EMMC},
|
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{"9 - SCC_SDIO", BIT_SCC_SDIO},
|
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{"10 - SCC_SDCARD", BIT_SCC_SDCARD},
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{"11 - SCC_MIPI", BIT_SCC_MIPI},
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{"12 - HDA", BIT_HDA},
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{"13 - LPE", BIT_LPE},
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{"14 - OTG", BIT_OTG},
|
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{"15 - USH", BIT_USH},
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{"16 - GBE", BIT_GBE},
|
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{"17 - SATA", BIT_SATA},
|
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{"18 - USB_EHCI", BIT_USB_EHCI},
|
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{"19 - SEC", BIT_SEC},
|
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{"20 - PCIE_PORT0", BIT_PCIE_PORT0},
|
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{"21 - PCIE_PORT1", BIT_PCIE_PORT1},
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{"22 - PCIE_PORT2", BIT_PCIE_PORT2},
|
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{"23 - PCIE_PORT3", BIT_PCIE_PORT3},
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{"24 - LPSS2_F0_DMA", BIT_LPSS2_F0_DMA},
|
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{"25 - LPSS2_F1_I2C1", BIT_LPSS2_F1_I2C1},
|
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{"26 - LPSS2_F2_I2C2", BIT_LPSS2_F2_I2C2},
|
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{"27 - LPSS2_F3_I2C3", BIT_LPSS2_F3_I2C3},
|
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{"28 - LPSS2_F3_I2C4", BIT_LPSS2_F4_I2C4},
|
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{"29 - LPSS2_F5_I2C5", BIT_LPSS2_F5_I2C5},
|
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{"30 - LPSS2_F6_I2C6", BIT_LPSS2_F6_I2C6},
|
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{"31 - LPSS2_F7_I2C7", BIT_LPSS2_F7_I2C7},
|
||||
{"32 - SMB", BIT_SMB},
|
||||
{"33 - OTG_SS_PHY", BIT_OTG_SS_PHY},
|
||||
{"34 - USH_SS_PHY", BIT_USH_SS_PHY},
|
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{"35 - DFX", BIT_DFX},
|
||||
};
|
||||
|
||||
static inline u32 pmc_reg_read(struct pmc_dev *pmc, int reg_offset)
|
||||
{
|
||||
return readl(pmc->regmap + reg_offset);
|
||||
}
|
||||
|
||||
static inline void pmc_reg_write(struct pmc_dev *pmc, int reg_offset, u32 val)
|
||||
{
|
||||
writel(val, pmc->regmap + reg_offset);
|
||||
}
|
||||
|
||||
static void pmc_power_off(void)
|
||||
{
|
||||
u16 pm1_cnt_port;
|
||||
u32 pm1_cnt_value;
|
||||
|
||||
pr_info("Preparing to enter system sleep state S5\n");
|
||||
|
||||
pm1_cnt_port = acpi_base_addr + PM1_CNT;
|
||||
|
||||
pm1_cnt_value = inl(pm1_cnt_port);
|
||||
pm1_cnt_value &= SLEEP_TYPE_MASK;
|
||||
pm1_cnt_value |= SLEEP_TYPE_S5;
|
||||
pm1_cnt_value |= SLEEP_ENABLE;
|
||||
|
||||
outl(pm1_cnt_value, pm1_cnt_port);
|
||||
}
|
||||
|
||||
static void pmc_hw_reg_setup(struct pmc_dev *pmc)
|
||||
{
|
||||
/*
|
||||
* Disable PMC S0IX_WAKE_EN events coming from:
|
||||
* - LPC clock run
|
||||
* - GPIO_SUS ored dedicated IRQs
|
||||
* - GPIO_SCORE ored dedicated IRQs
|
||||
* - GPIO_SUS shared IRQ
|
||||
* - GPIO_SCORE shared IRQ
|
||||
*/
|
||||
pmc_reg_write(pmc, PMC_S0IX_WAKE_EN, (u32)PMC_WAKE_EN_SETTING);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
static int pmc_dev_state_show(struct seq_file *s, void *unused)
|
||||
{
|
||||
struct pmc_dev *pmc = s->private;
|
||||
u32 func_dis, func_dis_2, func_dis_index;
|
||||
u32 d3_sts_0, d3_sts_1, d3_sts_index;
|
||||
int dev_num, dev_index, reg_index;
|
||||
|
||||
func_dis = pmc_reg_read(pmc, PMC_FUNC_DIS);
|
||||
func_dis_2 = pmc_reg_read(pmc, PMC_FUNC_DIS_2);
|
||||
d3_sts_0 = pmc_reg_read(pmc, PMC_D3_STS_0);
|
||||
d3_sts_1 = pmc_reg_read(pmc, PMC_D3_STS_1);
|
||||
|
||||
dev_num = ARRAY_SIZE(dev_map);
|
||||
|
||||
for (dev_index = 0; dev_index < dev_num; dev_index++) {
|
||||
reg_index = dev_index / PMC_REG_BIT_WIDTH;
|
||||
if (reg_index) {
|
||||
func_dis_index = func_dis_2;
|
||||
d3_sts_index = d3_sts_1;
|
||||
} else {
|
||||
func_dis_index = func_dis;
|
||||
d3_sts_index = d3_sts_0;
|
||||
}
|
||||
|
||||
seq_printf(s, "Dev: %-32s\tState: %s [%s]\n",
|
||||
dev_map[dev_index].name,
|
||||
dev_map[dev_index].bit_mask & func_dis_index ?
|
||||
"Disabled" : "Enabled ",
|
||||
dev_map[dev_index].bit_mask & d3_sts_index ?
|
||||
"D3" : "D0");
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pmc_dev_state_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
return single_open(file, pmc_dev_state_show, inode->i_private);
|
||||
}
|
||||
|
||||
static const struct file_operations pmc_dev_state_ops = {
|
||||
.open = pmc_dev_state_open,
|
||||
.read = seq_read,
|
||||
.llseek = seq_lseek,
|
||||
.release = single_release,
|
||||
};
|
||||
|
||||
static int pmc_sleep_tmr_show(struct seq_file *s, void *unused)
|
||||
{
|
||||
struct pmc_dev *pmc = s->private;
|
||||
u64 s0ir_tmr, s0i1_tmr, s0i2_tmr, s0i3_tmr, s0_tmr;
|
||||
|
||||
s0ir_tmr = (u64)pmc_reg_read(pmc, PMC_S0IR_TMR) << PMC_TMR_SHIFT;
|
||||
s0i1_tmr = (u64)pmc_reg_read(pmc, PMC_S0I1_TMR) << PMC_TMR_SHIFT;
|
||||
s0i2_tmr = (u64)pmc_reg_read(pmc, PMC_S0I2_TMR) << PMC_TMR_SHIFT;
|
||||
s0i3_tmr = (u64)pmc_reg_read(pmc, PMC_S0I3_TMR) << PMC_TMR_SHIFT;
|
||||
s0_tmr = (u64)pmc_reg_read(pmc, PMC_S0_TMR) << PMC_TMR_SHIFT;
|
||||
|
||||
seq_printf(s, "S0IR Residency:\t%lldus\n", s0ir_tmr);
|
||||
seq_printf(s, "S0I1 Residency:\t%lldus\n", s0i1_tmr);
|
||||
seq_printf(s, "S0I2 Residency:\t%lldus\n", s0i2_tmr);
|
||||
seq_printf(s, "S0I3 Residency:\t%lldus\n", s0i3_tmr);
|
||||
seq_printf(s, "S0 Residency:\t%lldus\n", s0_tmr);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pmc_sleep_tmr_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
return single_open(file, pmc_sleep_tmr_show, inode->i_private);
|
||||
}
|
||||
|
||||
static const struct file_operations pmc_sleep_tmr_ops = {
|
||||
.open = pmc_sleep_tmr_open,
|
||||
.read = seq_read,
|
||||
.llseek = seq_lseek,
|
||||
.release = single_release,
|
||||
};
|
||||
|
||||
static void pmc_dbgfs_unregister(struct pmc_dev *pmc)
|
||||
{
|
||||
if (!pmc->dbgfs_dir)
|
||||
return;
|
||||
|
||||
debugfs_remove_recursive(pmc->dbgfs_dir);
|
||||
pmc->dbgfs_dir = NULL;
|
||||
}
|
||||
|
||||
static int pmc_dbgfs_register(struct pmc_dev *pmc, struct pci_dev *pdev)
|
||||
{
|
||||
struct dentry *dir, *f;
|
||||
|
||||
dir = debugfs_create_dir("pmc_atom", NULL);
|
||||
if (!dir)
|
||||
return -ENOMEM;
|
||||
|
||||
f = debugfs_create_file("dev_state", S_IFREG | S_IRUGO,
|
||||
dir, pmc, &pmc_dev_state_ops);
|
||||
if (!f) {
|
||||
dev_err(&pdev->dev, "dev_states register failed\n");
|
||||
goto err;
|
||||
}
|
||||
f = debugfs_create_file("sleep_state", S_IFREG | S_IRUGO,
|
||||
dir, pmc, &pmc_sleep_tmr_ops);
|
||||
if (!f) {
|
||||
dev_err(&pdev->dev, "sleep_state register failed\n");
|
||||
goto err;
|
||||
}
|
||||
pmc->dbgfs_dir = dir;
|
||||
return 0;
|
||||
err:
|
||||
pmc_dbgfs_unregister(pmc);
|
||||
return -ENODEV;
|
||||
}
|
||||
#endif /* CONFIG_DEBUG_FS */
|
||||
|
||||
static int pmc_setup_dev(struct pci_dev *pdev)
|
||||
{
|
||||
struct pmc_dev *pmc = &pmc_device;
|
||||
int ret;
|
||||
|
||||
/* Obtain ACPI base address */
|
||||
pci_read_config_dword(pdev, ACPI_BASE_ADDR_OFFSET, &acpi_base_addr);
|
||||
acpi_base_addr &= ACPI_BASE_ADDR_MASK;
|
||||
|
||||
/* Install power off function */
|
||||
if (acpi_base_addr != 0 && pm_power_off == NULL)
|
||||
pm_power_off = pmc_power_off;
|
||||
|
||||
pci_read_config_dword(pdev, PMC_BASE_ADDR_OFFSET, &pmc->base_addr);
|
||||
pmc->base_addr &= PMC_BASE_ADDR_MASK;
|
||||
|
||||
pmc->regmap = ioremap_nocache(pmc->base_addr, PMC_MMIO_REG_LEN);
|
||||
if (!pmc->regmap) {
|
||||
dev_err(&pdev->dev, "error: ioremap failed\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* PMC hardware registers setup */
|
||||
pmc_hw_reg_setup(pmc);
|
||||
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
ret = pmc_dbgfs_register(pmc, pdev);
|
||||
if (ret) {
|
||||
iounmap(pmc->regmap);
|
||||
return ret;
|
||||
}
|
||||
#endif /* CONFIG_DEBUG_FS */
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Data for PCI driver interface
|
||||
*
|
||||
* This data only exists for exporting the supported
|
||||
* PCI ids via MODULE_DEVICE_TABLE. We do not actually
|
||||
* register a pci_driver, because lpc_ich will register
|
||||
* a driver on the same PCI id.
|
||||
*/
|
||||
static const struct pci_device_id pmc_pci_ids[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_VLV_PMC) },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(pci, pmc_pci_ids);
|
||||
|
||||
static int __init pmc_atom_init(void)
|
||||
{
|
||||
int err = -ENODEV;
|
||||
struct pci_dev *pdev = NULL;
|
||||
const struct pci_device_id *ent;
|
||||
|
||||
/* We look for our device - PCU PMC
|
||||
* we assume that there is max. one device.
|
||||
*
|
||||
* We can't use plain pci_driver mechanism,
|
||||
* as the device is really a multiple function device,
|
||||
* main driver that binds to the pci_device is lpc_ich
|
||||
* and have to find & bind to the device this way.
|
||||
*/
|
||||
for_each_pci_dev(pdev) {
|
||||
ent = pci_match_id(pmc_pci_ids, pdev);
|
||||
if (ent) {
|
||||
err = pmc_setup_dev(pdev);
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
/* Device not found. */
|
||||
out:
|
||||
return err;
|
||||
}
|
||||
|
||||
module_init(pmc_atom_init);
|
||||
/* no module_exit, this driver shouldn't be unloaded */
|
||||
|
||||
MODULE_AUTHOR("Aubrey Li <aubrey.li@linux.intel.com>");
|
||||
MODULE_DESCRIPTION("Intel Atom SOC Power Management Controller Interface");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* Technologic Systems TS-5500 Single Board Computer support
|
||||
*
|
||||
* Copyright (C) 2013 Savoir-faire Linux Inc.
|
||||
* Copyright (C) 2013-2014 Savoir-faire Linux Inc.
|
||||
* Vivien Didelot <vivien.didelot@savoirfairelinux.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it under
|
||||
|
|
@ -15,8 +15,8 @@
|
|||
* state or available options. For further information about sysfs entries, see
|
||||
* Documentation/ABI/testing/sysfs-platform-ts5500.
|
||||
*
|
||||
* This code actually supports the TS-5500 platform, but it may be extended to
|
||||
* support similar Technologic Systems x86-based platforms, such as the TS-5600.
|
||||
* This code may be extended to support similar x86-based platforms.
|
||||
* Actually, the TS-5500 and TS-5400 are supported.
|
||||
*/
|
||||
|
||||
#include <linux/delay.h>
|
||||
|
|
@ -32,6 +32,7 @@
|
|||
/* Product code register */
|
||||
#define TS5500_PRODUCT_CODE_ADDR 0x74
|
||||
#define TS5500_PRODUCT_CODE 0x60 /* TS-5500 product code */
|
||||
#define TS5400_PRODUCT_CODE 0x40 /* TS-5400 product code */
|
||||
|
||||
/* SRAM/RS-485/ADC options, and RS-485 RTS/Automatic RS-485 flags register */
|
||||
#define TS5500_SRAM_RS485_ADC_ADDR 0x75
|
||||
|
|
@ -66,6 +67,7 @@
|
|||
|
||||
/**
|
||||
* struct ts5500_sbc - TS-5500 board description
|
||||
* @name: Board model name.
|
||||
* @id: Board product ID.
|
||||
* @sram: Flag for SRAM option.
|
||||
* @rs485: Flag for RS-485 option.
|
||||
|
|
@ -75,6 +77,7 @@
|
|||
* @jumpers: Bitfield for jumpers' state.
|
||||
*/
|
||||
struct ts5500_sbc {
|
||||
const char *name;
|
||||
int id;
|
||||
bool sram;
|
||||
bool rs485;
|
||||
|
|
@ -122,13 +125,16 @@ static int __init ts5500_detect_config(struct ts5500_sbc *sbc)
|
|||
if (!request_region(TS5500_PRODUCT_CODE_ADDR, 4, "ts5500"))
|
||||
return -EBUSY;
|
||||
|
||||
tmp = inb(TS5500_PRODUCT_CODE_ADDR);
|
||||
if (tmp != TS5500_PRODUCT_CODE) {
|
||||
pr_err("This platform is not a TS-5500 (found ID 0x%x)\n", tmp);
|
||||
sbc->id = inb(TS5500_PRODUCT_CODE_ADDR);
|
||||
if (sbc->id == TS5500_PRODUCT_CODE) {
|
||||
sbc->name = "TS-5500";
|
||||
} else if (sbc->id == TS5400_PRODUCT_CODE) {
|
||||
sbc->name = "TS-5400";
|
||||
} else {
|
||||
pr_err("ts5500: unknown product code 0x%x\n", sbc->id);
|
||||
ret = -ENODEV;
|
||||
goto cleanup;
|
||||
}
|
||||
sbc->id = tmp;
|
||||
|
||||
tmp = inb(TS5500_SRAM_RS485_ADC_ADDR);
|
||||
sbc->sram = tmp & TS5500_SRAM;
|
||||
|
|
@ -147,48 +153,52 @@ cleanup:
|
|||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t ts5500_show_id(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
static ssize_t name_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ts5500_sbc *sbc = dev_get_drvdata(dev);
|
||||
|
||||
return sprintf(buf, "%s\n", sbc->name);
|
||||
}
|
||||
static DEVICE_ATTR_RO(name);
|
||||
|
||||
static ssize_t id_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ts5500_sbc *sbc = dev_get_drvdata(dev);
|
||||
|
||||
return sprintf(buf, "0x%.2x\n", sbc->id);
|
||||
}
|
||||
static DEVICE_ATTR_RO(id);
|
||||
|
||||
static ssize_t ts5500_show_jumpers(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
static ssize_t jumpers_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct ts5500_sbc *sbc = dev_get_drvdata(dev);
|
||||
|
||||
return sprintf(buf, "0x%.2x\n", sbc->jumpers >> 1);
|
||||
}
|
||||
static DEVICE_ATTR_RO(jumpers);
|
||||
|
||||
#define TS5500_SHOW(field) \
|
||||
static ssize_t ts5500_show_##field(struct device *dev, \
|
||||
struct device_attribute *attr, \
|
||||
char *buf) \
|
||||
{ \
|
||||
struct ts5500_sbc *sbc = dev_get_drvdata(dev); \
|
||||
return sprintf(buf, "%d\n", sbc->field); \
|
||||
}
|
||||
#define TS5500_ATTR_BOOL(_field) \
|
||||
static ssize_t _field##_show(struct device *dev, \
|
||||
struct device_attribute *attr, char *buf) \
|
||||
{ \
|
||||
struct ts5500_sbc *sbc = dev_get_drvdata(dev); \
|
||||
\
|
||||
return sprintf(buf, "%d\n", sbc->_field); \
|
||||
} \
|
||||
static DEVICE_ATTR_RO(_field)
|
||||
|
||||
TS5500_SHOW(sram)
|
||||
TS5500_SHOW(rs485)
|
||||
TS5500_SHOW(adc)
|
||||
TS5500_SHOW(ereset)
|
||||
TS5500_SHOW(itr)
|
||||
|
||||
static DEVICE_ATTR(id, S_IRUGO, ts5500_show_id, NULL);
|
||||
static DEVICE_ATTR(jumpers, S_IRUGO, ts5500_show_jumpers, NULL);
|
||||
static DEVICE_ATTR(sram, S_IRUGO, ts5500_show_sram, NULL);
|
||||
static DEVICE_ATTR(rs485, S_IRUGO, ts5500_show_rs485, NULL);
|
||||
static DEVICE_ATTR(adc, S_IRUGO, ts5500_show_adc, NULL);
|
||||
static DEVICE_ATTR(ereset, S_IRUGO, ts5500_show_ereset, NULL);
|
||||
static DEVICE_ATTR(itr, S_IRUGO, ts5500_show_itr, NULL);
|
||||
TS5500_ATTR_BOOL(sram);
|
||||
TS5500_ATTR_BOOL(rs485);
|
||||
TS5500_ATTR_BOOL(adc);
|
||||
TS5500_ATTR_BOOL(ereset);
|
||||
TS5500_ATTR_BOOL(itr);
|
||||
|
||||
static struct attribute *ts5500_attributes[] = {
|
||||
&dev_attr_id.attr,
|
||||
&dev_attr_name.attr,
|
||||
&dev_attr_jumpers.attr,
|
||||
&dev_attr_sram.attr,
|
||||
&dev_attr_rs485.attr,
|
||||
|
|
@ -311,12 +321,14 @@ static int __init ts5500_init(void)
|
|||
if (err)
|
||||
goto error;
|
||||
|
||||
ts5500_dio1_pdev.dev.parent = &pdev->dev;
|
||||
if (platform_device_register(&ts5500_dio1_pdev))
|
||||
dev_warn(&pdev->dev, "DIO1 block registration failed\n");
|
||||
ts5500_dio2_pdev.dev.parent = &pdev->dev;
|
||||
if (platform_device_register(&ts5500_dio2_pdev))
|
||||
dev_warn(&pdev->dev, "DIO2 block registration failed\n");
|
||||
if (sbc->id == TS5500_PRODUCT_CODE) {
|
||||
ts5500_dio1_pdev.dev.parent = &pdev->dev;
|
||||
if (platform_device_register(&ts5500_dio1_pdev))
|
||||
dev_warn(&pdev->dev, "DIO1 block registration failed\n");
|
||||
ts5500_dio2_pdev.dev.parent = &pdev->dev;
|
||||
if (platform_device_register(&ts5500_dio2_pdev))
|
||||
dev_warn(&pdev->dev, "DIO2 block registration failed\n");
|
||||
}
|
||||
|
||||
if (led_classdev_register(&pdev->dev, &ts5500_led_cdev))
|
||||
dev_warn(&pdev->dev, "LED registration failed\n");
|
||||
|
|
|
|||
Loading…
Reference in New Issue