hello everyone
My system is
bootloader: u-boot200908
kernel : L3.0.35 LTIB
I want use EIM CS1 (8bit mode) in u-boot level...
What I applied:
/u-boot/board/freescale/mx6q_sabresd/mx6q_sabresd.c
iomux_v3_cfg_t weim_pads[] = {
MX6DL_PAD_EIM_OE__WEIM_WEIM_OE,
MX6DL_PAD_EIM_RW__WEIM_WEIM_RW,
MX6DL_PAD_EIM_CS0__WEIM_WEIM_CS_0,
MX6DL_PAD_EIM_CS1__WEIM_WEIM_CS_1,
MX6DL_PAD_DISP0_DAT8__GPIO_4_29,
MX6DL_PAD_EIM_LBA__WEIM_WEIM_LBA,
MX6DL_PAD_EIM_BCLK__WEIM_WEIM_BCLK,
MX6DL_PAD_CSI0_DAT12__WEIM_WEIM_D_8,
MX6DL_PAD_CSI0_DAT13__WEIM_WEIM_D_9,
MX6DL_PAD_CSI0_DAT14__WEIM_WEIM_D_10,
MX6DL_PAD_CSI0_DAT15__WEIM_WEIM_D_11,
MX6DL_PAD_CSI0_DAT16__WEIM_WEIM_D_12,
MX6DL_PAD_CSI0_DAT17__WEIM_WEIM_D_13,
MX6DL_PAD_CSI0_DAT18__WEIM_WEIM_D_14,
MX6DL_PAD_CSI0_DAT19__WEIM_WEIM_D_15,
...
};
void setup_eim(void)
{
u32 reg = 0;
mxc_iomux_v3_setup_multiple_pads(weim_pads,ARRAY_SIZE(weim_pads));
reg = readl(IOMUXC_BASE_ADDR + 0x4); // GPR1 register CS0/CS1 enable
reg &= ~0x07ffffff;
reg |= 0x1b;
writel(reg, IOMUXC_BASE_ADDR + 0x4);
writel(0x00851081,(WEIM_BASE_ADDR + 0x18)); //CS1GCR1
writel(0x00000001,(WEIM_BASE_ADDR + 0x18 + 0x4)); //CS1GCR2
writel(0x1C022000,(WEIM_BASE_ADDR + 0x18 + 0x8)); //CS1RCR1
writel(0x0000C000,(WEIM_BASE_ADDR + 0x18 + 0xC)); //CS1RCR2
writel(0x1404A38E,(WEIM_BASE_ADDR + 0x18 + 0x10)); //CS1WCR
}
/u-boot/board/freescale/mx6q_sabresd/lowlevel_init.S
ldr r0, CCM_BASE_ADDR_W
....
ldr r1, =0xFFC
str r1, [r0, #CLKCTL_CCGR6]
...
/u-boot/board/freescale/mx6q_sabresd/flash_header.S
none .
EIM CS1 does not work after applying the above.
HOW do i get EIM CS1 to work????
Pleas help me....
