diff options
| author | Humphrey Bucknell <hbucknell@saitek.com> | 2008-08-29 11:27:00 -0400 |
|---|---|---|
| committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-09-01 07:04:09 -0400 |
| commit | 84c4f2f21a8e6e6d4bdfff95bf5ddc7925df4e01 (patch) | |
| tree | e18e4dff39c14edca1f0dcb084bdb0762107dfbd /arch | |
| parent | 9e3f544d792fd2ff7e31ca4a72e5194f1491ed14 (diff) | |
avr32: pm_standby low-power ram bug fix
The value stored into the SDRAMC LPR register should be the current
value of the register with the Self-refresh value set in the lower bit
field.
The bug involved only the Self-refresh value being written to the
register, thus over writing any low-power ram settings.
Signed-off-by: Humphrey Bucknell <hbucknell@saitek.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/avr32/mach-at32ap/pm-at32ap700x.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/avr32/mach-at32ap/pm-at32ap700x.S b/arch/avr32/mach-at32ap/pm-at32ap700x.S index 5be4de65b209..17503b0ed6c9 100644 --- a/arch/avr32/mach-at32ap/pm-at32ap700x.S +++ b/arch/avr32/mach-at32ap/pm-at32ap700x.S | |||
| @@ -134,7 +134,7 @@ pm_standby: | |||
| 134 | mov r11, SDRAMC_LPR_LPCB_SELF_RFR | 134 | mov r11, SDRAMC_LPR_LPCB_SELF_RFR |
| 135 | bfins r10, r11, 0, 2 /* LPCB <- self Refresh */ | 135 | bfins r10, r11, 0, 2 /* LPCB <- self Refresh */ |
| 136 | sync 0 /* flush write buffer */ | 136 | sync 0 /* flush write buffer */ |
| 137 | st.w r12[SDRAMC_LPR], r11 /* put SDRAM in self-refresh mode */ | 137 | st.w r12[SDRAMC_LPR], r10 /* put SDRAM in self-refresh mode */ |
| 138 | ld.w r11, r12[SDRAMC_LPR] | 138 | ld.w r11, r12[SDRAMC_LPR] |
| 139 | unmask_interrupts | 139 | unmask_interrupts |
| 140 | sleep CPU_SLEEP_FROZEN | 140 | sleep CPU_SLEEP_FROZEN |