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| author | Lin Fuzhen <fuzhen.lin@freescale.com> | 2012-11-06 17:54:23 +0800 |
|---|---|---|
| committer | Lin Fuzhen <fuzhen.lin@freescale.com> | 2012-11-09 17:12:11 +0800 |
| commit | 552907b7a21ba7712f4c72da8a49c717486a22bd (patch) | |
| tree | e43b367a8273160e4d1bc381ccf354b33cb40c60 /board/freescale | |
| parent | 8ed73ecdbc777a264f17a36b90b2f6b13bc324a1 (diff) | |
| download | u-boot-imx-552907b7a21ba7712f4c72da8a49c717486a22bd.zip u-boot-imx-552907b7a21ba7712f4c72da8a49c717486a22bd.tar.gz u-boot-imx-552907b7a21ba7712f4c72da8a49c717486a22bd.tar.bz2 | |
ENGR00232682 mx6sl snvs: fix long press ONOFF failed issue in u-boot
the same as TKT104835 reported on MX6Q/DL
Need set Power Supply Glitch to 0x41736166 and clear Power Supply
Glitch Detect bit when POR or reboot or power on, otherwise system could
not be power off anymore, it will power up auto agian.
Signed-off-by: Lin Fuzhen <fuzhen.lin@freescale.com>
Diffstat (limited to 'board/freescale')
| -rw-r--r-- | board/freescale/mx6sl_arm2/mx6sl_arm2.c | 13 | ||||
| -rw-r--r-- | board/freescale/mx6sl_evk/mx6sl_evk.c | 14 |
2 files changed, 27 insertions, 0 deletions
diff --git a/board/freescale/mx6sl_arm2/mx6sl_arm2.c b/board/freescale/mx6sl_arm2/mx6sl_arm2.c index 13d6339..f695066 100644 --- a/board/freescale/mx6sl_arm2/mx6sl_arm2.c +++ b/board/freescale/mx6sl_arm2/mx6sl_arm2.c @@ -1009,6 +1009,19 @@ static int setup_pmic_voltages(void) int board_init(void) { +/* + * need set Power Supply Glitch to 0x41736166 + * and need clear Power supply Glitch Detect bit + * when POR or reboot or power on Otherwise system + * could not be power off anymore + * */ + u32 reg; + writel(0x41736166, SNVS_BASE_ADDR + 0x64);/*set LPPGDR*/ + udelay(10); + reg = readl(SNVS_BASE_ADDR + 0x4c); + reg |= (1 << 3); + writel(reg, SNVS_BASE_ADDR + 0x4c);/*clear LPSR*/ + mxc_iomux_v3_init((void *)IOMUXC_BASE_ADDR); setup_boot_device(); diff --git a/board/freescale/mx6sl_evk/mx6sl_evk.c b/board/freescale/mx6sl_evk/mx6sl_evk.c index 1ce3e59..5800f3d 100644 --- a/board/freescale/mx6sl_evk/mx6sl_evk.c +++ b/board/freescale/mx6sl_evk/mx6sl_evk.c @@ -1033,6 +1033,20 @@ int check_powerkey_pressed(void) int board_init(void) { +/* + * need set Power Supply Glitch to 0x41736166 + * and need clear Power supply Glitch Detect bit + * when POR or reboot or power on Otherwise system + * could not be power off anymore; + * need to set SNVS work at DUMP mode; + * */ + u32 reg; + writel(0x41736166, SNVS_BASE_ADDR + 0x64);/*set LPPGDR*/ + udelay(10); + reg = readl(SNVS_BASE_ADDR + 0x4c); + reg |= (1 << 3); + writel(reg, SNVS_BASE_ADDR + 0x4c);/*clear LPSR*/ + mxc_iomux_v3_init((void *)IOMUXC_BASE_ADDR); setup_boot_device(); |