leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

arm, imx6, aristainetos2: set gpr register after reset

Browse Source 
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: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher 2015-09-25 12:31:49 +02:00 committed by Stefano Babic
parent d62f2f8cdf
commit c39fcad780
1 changed files with 16 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
board/aristainetos/aristainetos-v2.c
View File

@ -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;
}