diff --git a/arch/arm/mach-imx/imx25-dt.c b/arch/arm/mach-imx/imx25-dt.c index 82348391582a0944108a8d3ab06a4abb81771e20..ec339917fbf42ec11dbbdc3d394b0d7ff24ec04c 100644 --- a/arch/arm/mach-imx/imx25-dt.c +++ b/arch/arm/mach-imx/imx25-dt.c @@ -15,10 +15,13 @@ #include #include #include "common.h" +#include "hardware.h" #include "mx25.h" static void __init imx25_dt_init(void) { + mxc_arch_reset_init(MX25_IO_ADDRESS(MX25_WDOG_BASE_ADDR)); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); } diff --git a/arch/arm/mach-imx/imx27-dt.c b/arch/arm/mach-imx/imx27-dt.c index 4aaead0a77fffa89a1f3ef974915fe3a44601538..93aef1aa0a8e5e4806a34c2f07dd35b5650674b3 100644 --- a/arch/arm/mach-imx/imx27-dt.c +++ b/arch/arm/mach-imx/imx27-dt.c @@ -16,12 +16,15 @@ #include #include "common.h" +#include "hardware.h" #include "mx27.h" static void __init imx27_dt_init(void) { struct platform_device_info devinfo = { .name = "cpufreq-cpu0", }; + mxc_arch_reset_init(MX27_IO_ADDRESS(MX27_WDOG_BASE_ADDR)); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); platform_device_register_full(&devinfo); diff --git a/arch/arm/mach-imx/imx31-dt.c b/arch/arm/mach-imx/imx31-dt.c index 67de611e29ab32d1bd711418ffcd1780cf983e34..d8b3b22aeba7c3115f8ab24558d0e4e593d70c0d 100644 --- a/arch/arm/mach-imx/imx31-dt.c +++ b/arch/arm/mach-imx/imx31-dt.c @@ -16,10 +16,13 @@ #include #include "common.h" +#include "hardware.h" #include "mx31.h" static void __init imx31_dt_init(void) { + mxc_arch_reset_init(MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR)); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); } diff --git a/arch/arm/mach-imx/imx51-dt.c b/arch/arm/mach-imx/imx51-dt.c index ab24cc32211126874ea8ef5695da20180993d2a6..55f47a0f98c0b853b8dc5ff5239e6f1550a947e6 100644 --- a/arch/arm/mach-imx/imx51-dt.c +++ b/arch/arm/mach-imx/imx51-dt.c @@ -17,12 +17,15 @@ #include #include "common.h" +#include "hardware.h" #include "mx51.h" static void __init imx51_dt_init(void) { struct platform_device_info devinfo = { .name = "cpufreq-cpu0", }; + mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG1_BASE_ADDR)); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); platform_device_register_full(&devinfo); } diff --git a/arch/arm/mach-imx/mach-imx53.c b/arch/arm/mach-imx/mach-imx53.c index f579c616feed3b2008965fa9ef8b63dc84e6ab01..7a5656128b60c3bd624bdfafd871eb4e33e991e6 100644 --- a/arch/arm/mach-imx/mach-imx53.c +++ b/arch/arm/mach-imx/mach-imx53.c @@ -21,6 +21,7 @@ #include #include "common.h" +#include "hardware.h" #include "mx53.h" static void __init imx53_qsb_init(void) @@ -38,6 +39,8 @@ static void __init imx53_qsb_init(void) static void __init imx53_dt_init(void) { + mxc_arch_reset_init(MX53_IO_ADDRESS(MX53_WDOG1_BASE_ADDR)); + if (of_machine_is_compatible("fsl,imx53-qsb")) imx53_qsb_init(); diff --git a/arch/arm/mach-imx/mm-imx1.c b/arch/arm/mach-imx/mm-imx1.c index 3c609c52d3eb984f2d71cf43fc933c8b5e777056..e065fedb3ad4ea28559b862261c9b711c02108c0 100644 --- a/arch/arm/mach-imx/mm-imx1.c +++ b/arch/arm/mach-imx/mm-imx1.c @@ -39,7 +39,6 @@ void __init mx1_map_io(void) void __init imx1_init_early(void) { mxc_set_cpu_type(MXC_CPU_MX1); - mxc_arch_reset_init(MX1_IO_ADDRESS(MX1_WDT_BASE_ADDR)); imx_iomuxv1_init(MX1_IO_ADDRESS(MX1_GPIO_BASE_ADDR), MX1_NUM_GPIO_PORT); } @@ -51,6 +50,7 @@ void __init mx1_init_irq(void) void __init imx1_soc_init(void) { + mxc_arch_reset_init(MX1_IO_ADDRESS(MX1_WDT_BASE_ADDR)); mxc_device_init(); mxc_register_gpio("imx1-gpio", 0, MX1_GPIO1_BASE_ADDR, SZ_256, diff --git a/arch/arm/mach-imx/mm-imx21.c b/arch/arm/mach-imx/mm-imx21.c index d8ccd3a8ec531bec988e6a90353148983d8d7713..2e91ab2ca378609c2466e1340baa3a4239281dc7 100644 --- a/arch/arm/mach-imx/mm-imx21.c +++ b/arch/arm/mach-imx/mm-imx21.c @@ -66,7 +66,6 @@ void __init mx21_map_io(void) void __init imx21_init_early(void) { mxc_set_cpu_type(MXC_CPU_MX21); - mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR)); imx_iomuxv1_init(MX21_IO_ADDRESS(MX21_GPIO_BASE_ADDR), MX21_NUM_GPIO_PORT); } @@ -82,6 +81,7 @@ static const struct resource imx21_audmux_res[] __initconst = { void __init imx21_soc_init(void) { + mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR)); mxc_device_init(); mxc_register_gpio("imx21-gpio", 0, MX21_GPIO1_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); diff --git a/arch/arm/mach-imx/mm-imx25.c b/arch/arm/mach-imx/mm-imx25.c index 9357707bb7afc4fa5bbb586fcf1ac6fcb8a9bfc0..e065c117f5a6452156eab28e41fe5315b35af43a 100644 --- a/arch/arm/mach-imx/mm-imx25.c +++ b/arch/arm/mach-imx/mm-imx25.c @@ -54,7 +54,6 @@ void __init imx25_init_early(void) { mxc_set_cpu_type(MXC_CPU_MX25); mxc_iomux_v3_init(MX25_IO_ADDRESS(MX25_IOMUXC_BASE_ADDR)); - mxc_arch_reset_init(MX25_IO_ADDRESS(MX25_WDOG_BASE_ADDR)); } void __init mx25_init_irq(void) @@ -89,6 +88,7 @@ static const struct resource imx25_audmux_res[] __initconst = { void __init imx25_soc_init(void) { + mxc_arch_reset_init(MX25_IO_ADDRESS(MX25_WDOG_BASE_ADDR)); mxc_device_init(); /* i.mx25 has the i.mx35 type gpio */ diff --git a/arch/arm/mach-imx/mm-imx27.c b/arch/arm/mach-imx/mm-imx27.c index 4f1be65a7b5fe62a6531a09d70aa623283086d6b..7d82a5a5b16b5c73d8938b1b3b325d3d0cb1d6f9 100644 --- a/arch/arm/mach-imx/mm-imx27.c +++ b/arch/arm/mach-imx/mm-imx27.c @@ -66,7 +66,6 @@ void __init mx27_map_io(void) void __init imx27_init_early(void) { mxc_set_cpu_type(MXC_CPU_MX27); - mxc_arch_reset_init(MX27_IO_ADDRESS(MX27_WDOG_BASE_ADDR)); imx_iomuxv1_init(MX27_IO_ADDRESS(MX27_GPIO_BASE_ADDR), MX27_NUM_GPIO_PORT); } @@ -82,6 +81,7 @@ static const struct resource imx27_audmux_res[] __initconst = { void __init imx27_soc_init(void) { + mxc_arch_reset_init(MX27_IO_ADDRESS(MX27_WDOG_BASE_ADDR)); mxc_device_init(); /* i.mx27 has the i.mx21 type gpio */ diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index e0e69a682174b59ce08e77d2eb11608b596fcf97..8f0f60697f557eb511a22ecf926dbd8487c738ba 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -138,7 +138,6 @@ void __init mx31_map_io(void) void __init imx31_init_early(void) { mxc_set_cpu_type(MXC_CPU_MX31); - mxc_arch_reset_init(MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR)); arch_ioremap_caller = imx3_ioremap_caller; arm_pm_idle = imx3_idle; mx3_ccm_base = MX31_IO_ADDRESS(MX31_CCM_BASE_ADDR); @@ -174,6 +173,7 @@ void __init imx31_soc_init(void) imx3_init_l2x0(); + mxc_arch_reset_init(MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR)); mxc_device_init(); mxc_register_gpio("imx31-gpio", 0, MX31_GPIO1_BASE_ADDR, SZ_16K, MX31_INT_GPIO1, 0); @@ -216,7 +216,6 @@ void __init imx35_init_early(void) { mxc_set_cpu_type(MXC_CPU_MX35); mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR)); - mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR)); arm_pm_idle = imx3_idle; arch_ioremap_caller = imx3_ioremap_caller; mx3_ccm_base = MX35_IO_ADDRESS(MX35_CCM_BASE_ADDR); @@ -272,6 +271,7 @@ void __init imx35_soc_init(void) imx3_init_l2x0(); + mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR)); mxc_device_init(); mxc_register_gpio("imx35-gpio", 0, MX35_GPIO1_BASE_ADDR, SZ_16K, MX35_INT_GPIO1, 0); diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c index b7c4e70e50813a90f96cc14c2a47d2bf1e18ebc4..cf193d87274ac316674dfb4d0e50ccc81adbf4f0 100644 --- a/arch/arm/mach-imx/mm-imx5.c +++ b/arch/arm/mach-imx/mm-imx5.c @@ -83,7 +83,6 @@ void __init imx51_init_early(void) imx51_ipu_mipi_setup(); mxc_set_cpu_type(MXC_CPU_MX51); mxc_iomux_v3_init(MX51_IO_ADDRESS(MX51_IOMUXC_BASE_ADDR)); - mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG1_BASE_ADDR)); imx_src_init(); } @@ -91,7 +90,6 @@ void __init imx53_init_early(void) { mxc_set_cpu_type(MXC_CPU_MX53); mxc_iomux_v3_init(MX53_IO_ADDRESS(MX53_IOMUXC_BASE_ADDR)); - mxc_arch_reset_init(MX53_IO_ADDRESS(MX53_WDOG1_BASE_ADDR)); imx_src_init(); } @@ -129,6 +127,7 @@ static const struct resource imx51_audmux_res[] __initconst = { void __init imx51_soc_init(void) { + mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG1_BASE_ADDR)); mxc_device_init(); /* i.mx51 has the i.mx35 type gpio */ diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c index 695e0d73bf85e12308f878bcbfd322280b67ba76..02cf449094f104033c27de938f03b5a30418a82d 100644 --- a/arch/arm/mach-imx/system.c +++ b/arch/arm/mach-imx/system.c @@ -30,6 +30,7 @@ #include "hardware.h" static void __iomem *wdog_base; +static struct clk *wdog_clk; /* * Reset the system. It is called by machine_restart(). @@ -38,16 +39,13 @@ void mxc_restart(char mode, const char *cmd) { unsigned int wcr_enable; - if (cpu_is_mx1()) { - wcr_enable = (1 << 0); - } else { - struct clk *clk; + if (wdog_clk) + clk_enable(wdog_clk); - clk = clk_get_sys("imx2-wdt.0", NULL); - if (!IS_ERR(clk)) - clk_prepare_enable(clk); + if (cpu_is_mx1()) + wcr_enable = (1 << 0); + else wcr_enable = (1 << 2); - } /* Assert SRS signal */ __raw_writew(wcr_enable, wdog_base); @@ -55,7 +53,7 @@ void mxc_restart(char mode, const char *cmd) /* wait for reset to assert... */ mdelay(500); - printk(KERN_ERR "Watchdog reset failed to assert reset\n"); + pr_err("%s: Watchdog reset failed to assert reset\n", __func__); /* delay to allow the serial port to show the message */ mdelay(50); @@ -64,7 +62,16 @@ void mxc_restart(char mode, const char *cmd) soft_restart(0); } -void mxc_arch_reset_init(void __iomem *base) +void __init mxc_arch_reset_init(void __iomem *base) { wdog_base = base; + + wdog_clk = clk_get_sys("imx2-wdt.0", NULL); + if (IS_ERR(wdog_clk)) { + pr_warn("%s: failed to get wdog clock\n", __func__); + wdog_clk = NULL; + return; + } + + clk_prepare(wdog_clk); }