diff options
| author | Tom Rini <trini@konsulko.com> | 2017-07-07 15:21:45 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-07-11 22:41:56 -0400 |
| commit | ab86dc7948778cb087fa8cf9949bd53441097cf8 (patch) | |
| tree | ef51edf5fa28d8cdeaa1a4f1e560b9047d98a094 /arch/arm/mach-omap2/am33xx/clock_ti816x.c | |
| parent | 39b4f6bce332dc1ebd9c2b94910a1d58e1628f13 (diff) | |
| download | u-boot-ab86dc7948778cb087fa8cf9949bd53441097cf8.tar.gz u-boot-ab86dc7948778cb087fa8cf9949bd53441097cf8.tar.xz u-boot-ab86dc7948778cb087fa8cf9949bd53441097cf8.zip | |
ARM: ti816x: Fix enabling GPIO0, enable GPIO1 as well
The TI816x has 2 GPIO banks. For bank 0 we had been clearing the enable
bit when setting BIT(8). Correct this by setting it to BIT(1) | BIT(8)
after we set and wait for BIT(1) (aka PRCM_MOD_EN). Enable GPIO1 as
well so that when CMD_GPIO is enabled it won't crash probing the second
bank. Enable CMD_GPIO on ti816x_evm.
Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'arch/arm/mach-omap2/am33xx/clock_ti816x.c')
| -rw-r--r-- | arch/arm/mach-omap2/am33xx/clock_ti816x.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/am33xx/clock_ti816x.c b/arch/arm/mach-omap2/am33xx/clock_ti816x.c index 967623d467..e9c7b2d996 100644 --- a/arch/arm/mach-omap2/am33xx/clock_ti816x.c +++ b/arch/arm/mach-omap2/am33xx/clock_ti816x.c @@ -335,7 +335,13 @@ static void peripheral_enable(void) writel(PRCM_MOD_EN, &cmalwon->gpio0clkctrl); while (readl(&cmalwon->gpio0clkctrl) != PRCM_MOD_EN) ; - writel((BIT(8)), &cmalwon->gpio0clkctrl); + writel((BIT(1) | BIT(8)), &cmalwon->gpio0clkctrl); + + /* Enable gpio1 */ + writel(PRCM_MOD_EN, &cmalwon->gpio1clkctrl); + while (readl(&cmalwon->gpio1clkctrl) != PRCM_MOD_EN) + ; + writel((BIT(1) | BIT(8)), &cmalwon->gpio1clkctrl); /* Enable spi */ writel(PRCM_MOD_EN, &cmalwon->spiclkctrl); |