diff options
Diffstat (limited to 'arch/arm/mach-mxs')
| -rw-r--r-- | arch/arm/mach-mxs/Kconfig | 5 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/mach-mxs.c | 158 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/pm.c | 1 |
3 files changed, 75 insertions, 89 deletions
diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig index 616fe0210da..84794137b17 100644 --- a/arch/arm/mach-mxs/Kconfig +++ b/arch/arm/mach-mxs/Kconfig @@ -10,18 +10,13 @@ config SOC_IMX28 select ARM_AMBA select ARM_CPU_SUSPEND if PM select CPU_ARM926T - select HAVE_CAN_FLEXCAN if CAN select PINCTRL_IMX28 config ARCH_MXS bool "Freescale MXS (i.MX23, i.MX28) support" depends on ARCH_MULTI_V5 select ARCH_REQUIRE_GPIOLIB - select CLKDEV_LOOKUP select CLKSRC_MMIO - select CLKSRC_OF - select GENERIC_CLOCKEVENTS - select HAVE_CLK_PREPARE select PINCTRL select SOC_BUS select SOC_IMX23 diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c index 7fa611c1b28..2e7cec86e50 100644 --- a/arch/arm/mach-mxs/mach-mxs.c +++ b/arch/arm/mach-mxs/mach-mxs.c @@ -13,13 +13,12 @@ #include <linux/clk.h> #include <linux/clk/mxs.h> #include <linux/clkdev.h> -#include <linux/clocksource.h> -#include <linux/can/platform/flexcan.h> #include <linux/delay.h> #include <linux/err.h> #include <linux/gpio.h> #include <linux/init.h> #include <linux/irqchip/mxs.h> +#include <linux/reboot.h> #include <linux/micrel_phy.h> #include <linux/of_address.h> #include <linux/of_platform.h> @@ -61,6 +60,8 @@ static u32 chipid; static u32 socid; +static void __iomem *reset_addr; + static inline void __mxs_setl(u32 mask, void __iomem *reg) { __raw_writel(mask, reg + MXS_SET_ADDR); @@ -76,41 +77,6 @@ static inline void __mxs_togl(u32 mask, void __iomem *reg) __raw_writel(mask, reg + MXS_TOG_ADDR); } -/* - * MX28EVK_FLEXCAN_SWITCH is shared between both flexcan controllers - */ -#define MX28EVK_FLEXCAN_SWITCH MXS_GPIO_NR(2, 13) - -static int flexcan0_en, flexcan1_en; - -static void mx28evk_flexcan_switch(void) -{ - if (flexcan0_en || flexcan1_en) - gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 1); - else - gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 0); -} - -static void mx28evk_flexcan0_switch(int enable) -{ - flexcan0_en = enable; - mx28evk_flexcan_switch(); -} - -static void mx28evk_flexcan1_switch(int enable) -{ - flexcan1_en = enable; - mx28evk_flexcan_switch(); -} - -static struct flexcan_platform_data flexcan_pdata[2]; - -static struct of_dev_auxdata mxs_auxdata_lookup[] __initdata = { - OF_DEV_AUXDATA("fsl,imx28-flexcan", 0x80032000, NULL, &flexcan_pdata[0]), - OF_DEV_AUXDATA("fsl,imx28-flexcan", 0x80034000, NULL, &flexcan_pdata[1]), - { /* sentinel */ } -}; - #define OCOTP_WORD_OFFSET 0x20 #define OCOTP_WORD_COUNT 0x20 @@ -191,6 +157,8 @@ enum mac_oui { OUI_FSL, OUI_DENX, OUI_CRYSTALFONTZ, + OUI_I2SE, + OUI_ARMADEUS, }; static void __init update_fec_mac_prop(enum mac_oui oui) @@ -245,6 +213,16 @@ static void __init update_fec_mac_prop(enum mac_oui oui) macaddr[1] = 0xb9; macaddr[2] = 0xe1; break; + case OUI_I2SE: + macaddr[0] = 0x00; + macaddr[1] = 0x01; + macaddr[2] = 0x87; + break; + case OUI_ARMADEUS: + macaddr[0] = 0x00; + macaddr[1] = 0x1e; + macaddr[2] = 0xac; + break; } val = ocotp[i]; macaddr[3] = (val >> 16) & 0xff; @@ -270,13 +248,9 @@ static void __init imx28_evk_init(void) mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0); } -static void __init imx28_evk_post_init(void) +static void __init imx28_apf28_init(void) { - if (!gpio_request_one(MX28EVK_FLEXCAN_SWITCH, GPIOF_DIR_OUT, - "flexcan-switch")) { - flexcan_pdata[0].transceiver_switch = mx28evk_flexcan0_switch; - flexcan_pdata[1].transceiver_switch = mx28evk_flexcan1_switch; - } + update_fec_mac_prop(OUI_ARMADEUS); } static int apx4devkit_phy_fixup(struct phy_device *phy) @@ -373,6 +347,16 @@ static void __init crystalfontz_init(void) update_fec_mac_prop(OUI_CRYSTALFONTZ); } +static void __init duckbill_init(void) +{ + update_fec_mac_prop(OUI_I2SE); +} + +static void __init m28cu3_init(void) +{ + update_fec_mac_prop(OUI_DENX); +} + static const char __init *mxs_get_soc_id(void) { struct device_node *np; @@ -437,12 +421,38 @@ static const char __init *mxs_get_revision(void) u32 rev = mxs_get_cpu_rev(); if (rev != MXS_CHIP_REV_UNKNOWN) - return kasprintf(GFP_KERNEL, "TO%d.%d", (rev >> 4) & 0xf, + return kasprintf(GFP_KERNEL, "%d.%d", (rev >> 4) & 0xf, rev & 0xf); else return kasprintf(GFP_KERNEL, "%s", "Unknown"); } +#define MX23_CLKCTRL_RESET_OFFSET 0x120 +#define MX28_CLKCTRL_RESET_OFFSET 0x1e0 + +static int __init mxs_restart_init(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "fsl,clkctrl"); + reset_addr = of_iomap(np, 0); + if (!reset_addr) + return -ENODEV; + + if (of_device_is_compatible(np, "fsl,imx23-clkctrl")) + reset_addr += MX23_CLKCTRL_RESET_OFFSET; + else + reset_addr += MX28_CLKCTRL_RESET_OFFSET; + of_node_put(np); + + return 0; +} + +static void __init eukrea_mbmx283lc_init(void) +{ + mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0); +} + static void __init mxs_machine_init(void) { struct device_node *root; @@ -475,68 +485,49 @@ static void __init mxs_machine_init(void) if (of_machine_is_compatible("fsl,imx28-evk")) imx28_evk_init(); + if (of_machine_is_compatible("armadeus,imx28-apf28")) + imx28_apf28_init(); else if (of_machine_is_compatible("bluegiga,apx4devkit")) apx4devkit_init(); - else if (of_machine_is_compatible("crystalfontz,cfa10037") || - of_machine_is_compatible("crystalfontz,cfa10049") || - of_machine_is_compatible("crystalfontz,cfa10055") || - of_machine_is_compatible("crystalfontz,cfa10057")) + else if (of_machine_is_compatible("crystalfontz,cfa10036")) crystalfontz_init(); + else if (of_machine_is_compatible("eukrea,mbmx283lc")) + eukrea_mbmx283lc_init(); + else if (of_machine_is_compatible("i2se,duckbill")) + duckbill_init(); + else if (of_machine_is_compatible("msr,m28cu3")) + m28cu3_init(); of_platform_populate(NULL, of_default_bus_match_table, - mxs_auxdata_lookup, parent); + NULL, parent); + + mxs_restart_init(); if (of_machine_is_compatible("karo,tx28")) tx28_post_init(); - - if (of_machine_is_compatible("fsl,imx28-evk")) - imx28_evk_post_init(); } -#define MX23_CLKCTRL_RESET_OFFSET 0x120 -#define MX28_CLKCTRL_RESET_OFFSET 0x1e0 #define MXS_CLKCTRL_RESET_CHIP (1 << 1) /* * Reset the system. It is called by machine_restart(). */ -static void mxs_restart(char mode, const char *cmd) +static void mxs_restart(enum reboot_mode mode, const char *cmd) { - struct device_node *np; - void __iomem *reset_addr; - - np = of_find_compatible_node(NULL, NULL, "fsl,clkctrl"); - reset_addr = of_iomap(np, 0); - if (!reset_addr) - goto soft; - - if (of_device_is_compatible(np, "fsl,imx23-clkctrl")) - reset_addr += MX23_CLKCTRL_RESET_OFFSET; - else - reset_addr += MX28_CLKCTRL_RESET_OFFSET; + if (reset_addr) { + /* reset the chip */ + __mxs_setl(MXS_CLKCTRL_RESET_CHIP, reset_addr); - /* reset the chip */ - __mxs_setl(MXS_CLKCTRL_RESET_CHIP, reset_addr); + pr_err("Failed to assert the chip reset\n"); - pr_err("Failed to assert the chip reset\n"); - - /* Delay to allow the serial port to show the message */ - mdelay(50); + /* Delay to allow the serial port to show the message */ + mdelay(50); + } -soft: /* We'll take a jump through zero as a poor second */ soft_restart(0); } -static void __init mxs_timer_init(void) -{ - if (of_machine_is_compatible("fsl,imx23")) - mx23_clocks_init(); - else - mx28_clocks_init(); - clocksource_of_init(); -} - static const char *mxs_dt_compat[] __initdata = { "fsl,imx28", "fsl,imx23", @@ -545,7 +536,6 @@ static const char *mxs_dt_compat[] __initdata = { DT_MACHINE_START(MXS, "Freescale MXS (Device Tree)") .handle_irq = icoll_handle_irq, - .init_time = mxs_timer_init, .init_machine = mxs_machine_init, .init_late = mxs_pm_init, .dt_compat = mxs_dt_compat, diff --git a/arch/arm/mach-mxs/pm.c b/arch/arm/mach-mxs/pm.c index b2494d2db2c..0170e99fd70 100644 --- a/arch/arm/mach-mxs/pm.c +++ b/arch/arm/mach-mxs/pm.c @@ -15,6 +15,7 @@ #include <linux/kernel.h> #include <linux/suspend.h> #include <linux/io.h> +#include "pm.h" static int mxs_suspend_enter(suspend_state_t state) { |