Commit c39fcad7 authored by Heiko Schocher's avatar Heiko Schocher Committed by Stefano Babic

arm, imx6, aristainetos2: set gpr register after reset

setting the gpr 1,8 and 12 registers to a fix value.
This is needed because after a WDT reset, this registers
are not correct resettet, and prevent linux from booting
again.
Signed-off-by: default avatarHeiko Schocher <hs@denx.de>
parent d62f2f8c
......@@ -580,6 +580,21 @@ static void setup_iomux_gpio(void)
imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));
}
static void set_gpr_register(void)
{
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
writel(IOMUXC_GPR1_APP_CLK_REQ_N | IOMUXC_GPR1_PCIE_RDY_L23 |
IOMUXC_GPR1_EXC_MON_SLVE |
(2 << IOMUXC_GPR1_ADDRS0_OFFSET) |
IOMUXC_GPR1_ACT_CS0,
&iomuxc_regs->gpr[1]);
writel(0x0, &iomuxc_regs->gpr[8]);
writel(IOMUXC_GPR12_ARMP_IPG_CLK_EN | IOMUXC_GPR12_ARMP_AHB_CLK_EN |
IOMUXC_GPR12_ARMP_ATB_CLK_EN | IOMUXC_GPR12_ARMP_APB_CLK_EN,
&iomuxc_regs->gpr[12]);
}
int board_early_init_f(void)
{
setup_iomux_uart();
......@@ -588,6 +603,7 @@ int board_early_init_f(void)
gpio_direction_output(SOFT_RESET_GPIO, 1);
gpio_direction_output(SD2_DRIVER_ENABLE, 1);
setup_display();
set_gpr_register();
return 0;
}
......
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