/* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
* setup other stuffs to access the sram. */
static void __init pcm038_init_sram(void)
{
__raw_writel(0x0000d843, CSCR_U(1));
__raw_writel(0x22252521, CSCR_L(1));
__raw_writel(0x22220a00, CSCR_A(1));
}
int board_init (void)
{
int i;
/* CS0: Nor Flash */
/*
* CS0L and CS0A values are from the RedBoot sources by Freescale
* and are also equal to those used by Sascha Hauer for the Phytec
* i.MX31 board. CS0U is just a slightly optimized hardware default:
* the only non-zero field "Wait State Control" is set to half the
* default value.
*/
__REG(CSCR_U(0)) = 0x00000f00;
__REG(CSCR_L(0)) = 0x10000D03;
__REG(CSCR_A(0)) = 0x00720900;
/* setup pins for UART1 */
mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX);
mx31_gpio_mux(MUX_TXD1__UART1_TXD_MUX);
mx31_gpio_mux(MUX_RTS1__UART1_RTS_B);
mx31_gpio_mux(MUX_CTS1__UART1_CTS_B);
/* SPI2 */
mx31_gpio_mux(MUX_CSPI2_SS2__CSPI2_SS2_B);
mx31_gpio_mux(MUX_CSPI2_SCLK__CSPI2_CLK);
mx31_gpio_mux(MUX_CSPI2_SPI_RDY__CSPI2_DATAREADY_B);
mx31_gpio_mux(MUX_CSPI2_MOSI__CSPI2_MOSI);
mx31_gpio_mux(MUX_CSPI2_MISO__CSPI2_MISO);
mx31_gpio_mux(MUX_CSPI2_SS0__CSPI2_SS0_B);
mx31_gpio_mux(MUX_CSPI2_SS1__CSPI2_SS1_B);
/* start SPI2 clock */
__REG(CCM_CGR2) = __REG(CCM_CGR2) | (3 << 4);
/* PBC setup */
/* Enable UART transceivers also reset the Ethernet/external UART */
readw(CS4_BASE + 4);
writew(0x8023, CS4_BASE + 4);
/* RedBoot also has an empty loop with 100000 iterations here -
* clock doesn't run yet */
for (i = 0; i < 100000; i++)
;
/* Clear the reset, toggle the LEDs */
writew(0xDF, CS4_BASE + 6);
/* clock still doesn't run */
for (i = 0; i < 100000; i++)
;
/* See 1.5.4 in IMX31ADSE_PERI_BUS_CNTRL_CPLD_RM.pdf */
readb(CS4_BASE + 8);
readb(CS4_BASE + 7);
readb(CS4_BASE + 8);
readb(CS4_BASE + 7);
gd->bd->bi_arch_number = MACH_TYPE_MX31ADS; /* board id for linux */
gd->bd->bi_boot_params = 0x80000100; /* adress of boot parameters */
return 0;
}
int board_early_init_f(void)
{
#ifdef CONFIG_QONG_FPGA
/* CS1: FPGA/Network Controller/GPIO, 16-bit, no DTACK */
static const struct mxc_weimcs cs1 = {
/* sp wp bcd bcs psz pme sync dol cnc wsc ew wws edc */
CSCR_U(0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 1),
/* oea oen ebwa ebwn csa ebc dsz csn psr cre wrap csen */
CSCR_L(2, 0, 0, 4, 0, 0, 5, 0, 0, 0, 0, 1),
/* ebra ebrn rwa rwn mum lah lbn lba dww dct wwu age cnc2 fce*/
CSCR_A(0, 4, 0, 2, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0)
};
mxc_setup_weimcs(1, &cs1);
/* setup pins for FPGA */
mx31_gpio_mux(IOMUX_MODE(0x76, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x7e, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x91, MUX_CTL_OUT_FUNC | MUX_CTL_IN_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x92, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x93, MUX_CTL_GPIO));
/* FPGA reset Pin */
/* rstn = 0 */
gpio_direction_output(QONG_FPGA_RST_PIN, 0);
/* set interrupt pin as input */
gpio_direction_input(QONG_FPGA_IRQ_PIN);
/* FPGA JTAG Interface */
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SFS6, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SCK6, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_CAPTURE, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_COMPARE, MUX_CTL_GPIO));
gpio_direction_output(QONG_FPGA_TCK_PIN, 0);
gpio_direction_output(QONG_FPGA_TMS_PIN, 0);
gpio_direction_output(QONG_FPGA_TDI_PIN, 0);
gpio_direction_input(QONG_FPGA_TDO_PIN);
#endif
/* setup pins for UART1 */
mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX);
mx31_gpio_mux(MUX_TXD1__UART1_TXD_MUX);
mx31_gpio_mux(MUX_RTS1__UART1_RTS_B);
mx31_gpio_mux(MUX_CTS1__UART1_CTS_B);
/* setup pins for SPI (pmic) */
mx31_gpio_mux(MUX_CSPI2_SS0__CSPI2_SS0_B);
mx31_gpio_mux(MUX_CSPI2_MOSI__CSPI2_MOSI);
mx31_gpio_mux(MUX_CSPI2_MISO__CSPI2_MISO);
mx31_gpio_mux(MUX_CSPI2_SCLK__CSPI2_CLK);
mx31_gpio_mux(MUX_CSPI2_SPI_RDY__CSPI2_DATAREADY_B);
/* Setup pins for USB2 Host */
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_USBH2_CLK, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_USBH2_DIR, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_USBH2_NXT, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_USBH2_STP, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_USBH2_DATA0, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_USBH2_DATA1, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_STXD3, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SRXD3, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SCK3, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SFS3, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_STXD6, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SRXD6, MUX_CTL_FUNC));
#define H2_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
mx31_set_pad(MX31_PIN_USBH2_CLK, H2_PAD_CFG);
mx31_set_pad(MX31_PIN_USBH2_DIR, H2_PAD_CFG);
mx31_set_pad(MX31_PIN_USBH2_NXT, H2_PAD_CFG);
mx31_set_pad(MX31_PIN_USBH2_STP, H2_PAD_CFG);
mx31_set_pad(MX31_PIN_USBH2_DATA0, H2_PAD_CFG); /* USBH2_DATA0 */
mx31_set_pad(MX31_PIN_USBH2_DATA1, H2_PAD_CFG); /* USBH2_DATA1 */
mx31_set_pad(MX31_PIN_SRXD6, H2_PAD_CFG); /* USBH2_DATA2 */
mx31_set_pad(MX31_PIN_STXD6, H2_PAD_CFG); /* USBH2_DATA3 */
mx31_set_pad(MX31_PIN_SFS3, H2_PAD_CFG); /* USBH2_DATA4 */
mx31_set_pad(MX31_PIN_SCK3, H2_PAD_CFG); /* USBH2_DATA5 */
mx31_set_pad(MX31_PIN_SRXD3, H2_PAD_CFG); /* USBH2_DATA6 */
mx31_set_pad(MX31_PIN_STXD3, H2_PAD_CFG); /* USBH2_DATA7 */
writel(readl((IOMUXC_BASE + 0x8)) | (1 << 11), IOMUXC_BASE + 0x8);
return 0;
}
int board_init (void)
{
/* Chip selects */
/* CS0: Nor Flash #0 - it must be init'ed when executing from DDR */
/* Assumptions: HCLK = 133 MHz, tACC = 130ns */
__REG(CSCR_U(0)) = ((0 << 31) | /* SP */
(0 << 30) | /* WP */
(0 << 28) | /* BCD */
(0 << 24) | /* BCS */
(0 << 22) | /* PSZ */
(0 << 21) | /* PME */
(0 << 20) | /* SYNC */
(0 << 16) | /* DOL */
(3 << 14) | /* CNC */
(21 << 8) | /* WSC */
(0 << 7) | /* EW */
(0 << 4) | /* WWS */
(6 << 0) /* EDC */
);
__REG(CSCR_L(0)) = ((2 << 28) | /* OEA */
(1 << 24) | /* OEN */
(3 << 20) | /* EBWA */
(3 << 16) | /* EBWN */
(1 << 12) | /* CSA */
(1 << 11) | /* EBC */
(5 << 8) | /* DSZ */
(1 << 4) | /* CSN */
(0 << 3) | /* PSR */
(0 << 2) | /* CRE */
(0 << 1) | /* WRAP */
(1 << 0) /* CSEN */
);
__REG(CSCR_A(0)) = ((2 << 28) | /* EBRA */
(1 << 24) | /* EBRN */
(2 << 20) | /* RWA */
(2 << 16) | /* RWN */
(0 << 15) | /* MUM */
(0 << 13) | /* LAH */
(2 << 10) | /* LBN */
(0 << 8) | /* LBA */
(0 << 6) | /* DWW */
(0 << 4) | /* DCT */
(0 << 3) | /* WWU */
(0 << 2) | /* AGE */
(0 << 1) | /* CNC2 */
(0 << 0) /* FCE */
);
#ifdef CONFIG_QONG_FPGA
/* CS1: FPGA/Network Controller/GPIO */
/* 16-bit, no DTACK */
__REG(CSCR_U(1)) = 0x00000A01;
__REG(CSCR_L(1)) = 0x20040501;
__REG(CSCR_A(1)) = 0x04020C00;
/* setup pins for FPGA */
mx31_gpio_mux(IOMUX_MODE(0x76, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x7e, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x91, MUX_CTL_OUT_FUNC | MUX_CTL_IN_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x92, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x93, MUX_CTL_GPIO));
#endif
/* setup pins for UART1 */
mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX);
mx31_gpio_mux(MUX_TXD1__UART1_TXD_MUX);
mx31_gpio_mux(MUX_RTS1__UART1_RTS_B);
mx31_gpio_mux(MUX_CTS1__UART1_CTS_B);
/* board id for linux */
gd->bd->bi_arch_number = MACH_TYPE_QONG;
gd->bd->bi_boot_params = (0x80000100); /* adress of boot parameters */
return 0;
}
