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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-23 16:01:01 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-23 16:01:01 -0700 |
commit | b85c14fb833e6da127188aa61b0a2aec8111bf59 (patch) | |
tree | 059a0f91819a8e4f6dc26d75b6ee6e42d29e4fbe /arch/arm/mach-vt8500/restart.c | |
parent | ce447f34a7696268d1c7a7c44a0d5ef7a8176491 (diff) | |
parent | 913bdf1217f40c5e68c6b09f299177e5cd9629bd (diff) |
Merge tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull non-critical arm-soc bug fixes from Arnd Bergmann:
"These were submitted as bug fixes before v3.5 but not considered
important enough to be included in it."
* tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
ARM:vt8500: Convert to use .restart and remove arch_reset()
ARM: davinci: da8xx: fix interrupt handling
ARM: OMAP2+: fix CONFIG_CPU_IDLE dependency on CONFIG_PM
ARM: mxs/tx28: fix odd include
ARM: OMAP: remove unused cpu detection macros
ARM: OMAP: fix typos related to OMAP330
ARM: OMAP7XX: Remove omap730.h and omap850.h
ARM: OMAP2+: fix naming collision of variable nr_irqs
ARM: OMAP: omap2plus_defconfig: Enable EXT4 support
ARM: OMAP depends on MMU
arm: omap3: am35x: Set proper powerdomain states
ARM: OMAP AM35x: clockdomain data: Fix clockdomain dependencies
ARM: OMAP AM35x: EMAC/MDIO integration: Add Davinci EMAC/MDIO hwmod support
ARM: OMAP: AM35xx: fix UART4 softreset
ARM: OMAP AM35xx: clock and hwmod data: fix UART4 data
ARM: OMAP AM35xx: clock and hwmod data: fix AM35xx HSOTGUSB hwmod
ARM: OMAP: Fix dts files w/ status property: "disable" -> "disabled"
ARM: OMAP: beagle: Set USB Host Port 1 to OMAP_USBHS_PORT_MODE_UNUSED
ARM: OMAP2: twl-common: Fix compiler warning
ARM: OMAP: fix the ads7846 init code
...
Diffstat (limited to 'arch/arm/mach-vt8500/restart.c')
-rw-r--r-- | arch/arm/mach-vt8500/restart.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-vt8500/restart.c b/arch/arm/mach-vt8500/restart.c new file mode 100644 index 00000000000..497e89a5e13 --- /dev/null +++ b/arch/arm/mach-vt8500/restart.c @@ -0,0 +1,54 @@ +/* linux/arch/arm/mach-vt8500/restart.c + * + * Copyright (C) 2012 Tony Prisk <linux@prisktech.co.nz> + * + * 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 <asm/io.h> +#include <linux/of.h> +#include <linux/of_address.h> + +#define LEGACY_PMC_BASE 0xD8130000 +#define WMT_PRIZM_PMSR_REG 0x60 + +static void __iomem *pmc_base; + +void wmt_setup_restart(void) +{ + struct device_node *np; + + /* + * Check if Power Mgmt Controller node is present in device tree. If no + * device tree node, use the legacy PMSR value (valid for all current + * SoCs). + */ + np = of_find_compatible_node(NULL, NULL, "wmt,prizm-pmc"); + if (np) { + pmc_base = of_iomap(np, 0); + + if (!pmc_base) + pr_err("%s:of_iomap(pmc) failed\n", __func__); + + of_node_put(np); + } else { + pmc_base = ioremap(LEGACY_PMC_BASE, 0x1000); + if (!pmc_base) { + pr_err("%s:ioremap(rstc) failed\n", __func__); + return; + } + } +} + +void wmt_restart(char mode, const char *cmd) +{ + if (pmc_base) + writel(1, pmc_base + WMT_PRIZM_PMSR_REG); +} |