return 0;
}
-
-#ifdef CONFIG_SPL_BUILD
-#include <linux/libfdt.h>
-#include <spl.h>
-#include <asm/arch/mx6-ddr.h>
-
-static struct fsl_esdhc_cfg usdhc_cfg[3] = {
- {USDHC2_BASE_ADDR, 0, 4},
- {USDHC3_BASE_ADDR},
- {USDHC4_BASE_ADDR},
-};
-
-#define USDHC3_CD_GPIO IMX_GPIO_NR(2, 10)
-#define USDHC3_PWR_GPIO IMX_GPIO_NR(2, 11)
-#define USDHC4_CD_GPIO IMX_GPIO_NR(6, 21)
-
-static iomux_v3_cfg_t const usdhc2_pads[] = {
- MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-};
-
-static iomux_v3_cfg_t const usdhc3_pads[] = {
- MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD3_DATA0__USDHC3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD3_DATA1__USDHC3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD3_DATA2__USDHC3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD3_DATA3__USDHC3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD3_DATA4__USDHC3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD3_DATA5__USDHC3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD3_DATA6__USDHC3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD3_DATA7__USDHC3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
-
- /* CD pin */
- MX6_PAD_KEY_COL0__GPIO2_IO_10 | MUX_PAD_CTRL(NO_PAD_CTRL),
-
- /* RST_B, used for power reset cycle */
- MX6_PAD_KEY_COL1__GPIO2_IO_11 | MUX_PAD_CTRL(NO_PAD_CTRL),
-};
-
-static iomux_v3_cfg_t const usdhc4_pads[] = {
- MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
- MX6_PAD_SD4_DATA7__GPIO6_IO_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
-};
-
-int board_mmc_init(bd_t *bis)
-{
- struct src *src_regs = (struct src *)SRC_BASE_ADDR;
- u32 val;
- u32 port;
-
- val = readl(&src_regs->sbmr1);
-
- if ((val & 0xc0) != 0x40) {
- printf("Not boot from USDHC!\n");
- return -EINVAL;
- }
-
- port = (val >> 11) & 0x3;
- printf("port %d\n", port);
- switch (port) {
- case 1:
- imx_iomux_v3_setup_multiple_pads(
- usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
- usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
- usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
- break;
- case 2:
- imx_iomux_v3_setup_multiple_pads(
- usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
- gpio_direction_input(USDHC3_CD_GPIO);
- gpio_direction_output(USDHC3_PWR_GPIO, 1);
- usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
- usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
- break;
- case 3:
- imx_iomux_v3_setup_multiple_pads(
- usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
- gpio_direction_input(USDHC4_CD_GPIO);
- usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
- usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
- break;
- }
-
- gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
- return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
-}
-
-int board_mmc_getcd(struct mmc *mmc)
-{
- struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
- int ret = 0;
-
- switch (cfg->esdhc_base) {
- case USDHC2_BASE_ADDR:
- ret = 1; /* Assume uSDHC2 is always present */
- break;
- case USDHC3_BASE_ADDR:
- ret = !gpio_get_value(USDHC3_CD_GPIO);
- break;
- case USDHC4_BASE_ADDR:
- ret = !gpio_get_value(USDHC4_CD_GPIO);
- break;
- }
-
- return ret;
-}
-
-const struct mx6sx_iomux_ddr_regs mx6_ddr_ioregs = {
- .dram_dqm0 = 0x00000028,
- .dram_dqm1 = 0x00000028,
- .dram_dqm2 = 0x00000028,
- .dram_dqm3 = 0x00000028,
- .dram_ras = 0x00000020,
- .dram_cas = 0x00000020,
- .dram_odt0 = 0x00000020,
- .dram_odt1 = 0x00000020,
- .dram_sdba2 = 0x00000000,
- .dram_sdcke0 = 0x00003000,
- .dram_sdcke1 = 0x00003000,
- .dram_sdclk_0 = 0x00000030,
- .dram_sdqs0 = 0x00000028,
- .dram_sdqs1 = 0x00000028,
- .dram_sdqs2 = 0x00000028,
- .dram_sdqs3 = 0x00000028,
- .dram_reset = 0x00000020,
-};
-
-const struct mx6sx_iomux_grp_regs mx6_grp_ioregs = {
- .grp_addds = 0x00000020,
- .grp_ddrmode_ctl = 0x00020000,
- .grp_ddrpke = 0x00000000,
- .grp_ddrmode = 0x00020000,
- .grp_b0ds = 0x00000028,
- .grp_b1ds = 0x00000028,
- .grp_ctlds = 0x00000020,
- .grp_ddr_type = 0x000c0000,
- .grp_b2ds = 0x00000028,
- .grp_b3ds = 0x00000028,
-};
-
-const struct mx6_mmdc_calibration mx6_mmcd_calib = {
- .p0_mpwldectrl0 = 0x00290025,
- .p0_mpwldectrl1 = 0x00220022,
- .p0_mpdgctrl0 = 0x41480144,
- .p0_mpdgctrl1 = 0x01340130,
- .p0_mprddlctl = 0x3C3E4244,
- .p0_mpwrdlctl = 0x34363638,
-};
-
-static struct mx6_ddr3_cfg mem_ddr = {
- .mem_speed = 1600,
- .density = 4,
- .width = 32,
- .banks = 8,
- .rowaddr = 15,
- .coladdr = 10,
- .pagesz = 2,
- .trcd = 1375,
- .trcmin = 4875,
- .trasmin = 3500,
-};
-
-static void ccgr_init(void)
-{
- struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
-
- writel(0xFFFFFFFF, &ccm->CCGR0);
- writel(0xFFFFFFFF, &ccm->CCGR1);
- writel(0xFFFFFFFF, &ccm->CCGR2);
- writel(0xFFFFFFFF, &ccm->CCGR3);
- writel(0xFFFFFFFF, &ccm->CCGR4);
- writel(0xFFFFFFFF, &ccm->CCGR5);
- writel(0xFFFFFFFF, &ccm->CCGR6);
- writel(0xFFFFFFFF, &ccm->CCGR7);
-}
-
-static void spl_dram_init(void)
-{
- struct mx6_ddr_sysinfo sysinfo = {
- .dsize = mem_ddr.width/32,
- .cs_density = 24,
- .ncs = 1,
- .cs1_mirror = 0,
- .rtt_wr = 2,
- .rtt_nom = 2, /* RTT_Nom = RZQ/2 */
- .walat = 1, /* Write additional latency */
- .ralat = 5, /* Read additional latency */
- .mif3_mode = 3, /* Command prediction working mode */
- .bi_on = 1, /* Bank interleaving enabled */
- .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
- .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
- .ddr_type = DDR_TYPE_DDR3,
- .refsel = 1, /* Refresh cycles at 32KHz */
- .refr = 7, /* 8 refresh commands per refresh cycle */
- };
-
- mx6sx_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
- mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
-}
-
-void board_init_f(ulong dummy)
-{
- /* setup AIPS and disable watchdog */
- arch_cpu_init();
-
- ccgr_init();
-
- /* iomux and setup of i2c */
- board_early_init_f();
-
- /* setup GP timer */
- timer_init();
-
- /* UART clocks enabled and gd valid - init serial console */
- preloader_console_init();
-
- /* DDR initialization */
- spl_dram_init();
-
- /* Clear the BSS. */
- memset(__bss_start, 0, __bss_end - __bss_start);
-
- /* load/boot image from boot device */
- board_init_r(NULL, 0);
-}
-#endif
projects / oweals / u-boot.git / commitdiff