From: Rodolfo Giometti <giometti@linux.it>
To: linux-mips@linux-mips.org
Subject: au1x00 GPIO2 power management
Date: Tue, 27 Jun 2006 17:56:02 +0200 [thread overview]
Message-ID: <20060627155602.GB10595@enneenne.com> (raw)
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Hello,
attached patch adds support for power management for the secondary
general purpose I/O.
Ciao,
Rodolfo
--
GNU/Linux Solutions e-mail: giometti@enneenne.com
Linux Device Driver giometti@gnudd.com
Embedded Systems giometti@linux.it
UNIX programming phone: +39 349 2432127
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diff --git a/arch/mips/au1000/common/power.c b/arch/mips/au1000/common/power.c
index 9b47082..482de93 100644
--- a/arch/mips/au1000/common/power.c
+++ b/arch/mips/au1000/common/power.c
@@ -88,7 +88,10 @@ static DEFINE_SPINLOCK(pm_lock);
static uint sleep_aux_pll_cntrl;
static uint sleep_cpu_pll_cntrl;
static uint sleep_pin_function;
+static uint sleep_gpio2_dir;
+static uint sleep_gpio2_output;
static uint sleep_gpio2_enable;
+static uint sleep_gpio2_inten;
static uint sleep_uart0_inten;
static uint sleep_uart0_fifoctl;
static uint sleep_uart0_linectl;
@@ -182,6 +185,10 @@ save_core_regs(void)
sleep_cpu_pll_cntrl = au_readl(SYS_CPUPLL);
sleep_pin_function = au_readl(SYS_PINFUNC);
+
+ sleep_gpio2_dir = au_readl(GPIO2_DIR);
+ sleep_gpio2_output = au_readl(GPIO2_OUTPUT);
+ sleep_gpio2_inten = au_readl(GPIO2_INTENABLE);
sleep_gpio2_enable = au_readl(GPIO2_ENABLE);
/* Save the static memory controller configuration.
@@ -209,7 +216,11 @@ restore_core_regs(void)
au_writel(sleep_aux_pll_cntrl, SYS_AUXPLL); au_sync();
au_writel(sleep_cpu_pll_cntrl, SYS_CPUPLL); au_sync();
au_writel(sleep_pin_function, SYS_PINFUNC); au_sync();
+
au_writel(sleep_gpio2_enable, GPIO2_ENABLE); au_sync();
+ au_writel(sleep_gpio2_dir, GPIO2_DIR); au_sync();
+ au_writel((sleep_gpio2_output<<16)|sleep_gpio2_output, GPIO2_OUTPUT); au_sync();
+ au_writel(sleep_gpio2_inten, GPIO2_INTENABLE); au_sync();
/* Restore the static memory controller configuration.
*/
reply other threads:[~2006-06-27 15:56 UTC|newest]
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