diff options
Diffstat (limited to 'board/freescale/mx6sxsabresd/mx6sxsabresd.c')
| -rw-r--r-- | board/freescale/mx6sxsabresd/mx6sxsabresd.c | 171 |
1 files changed, 167 insertions, 4 deletions
diff --git a/board/freescale/mx6sxsabresd/mx6sxsabresd.c b/board/freescale/mx6sxsabresd/mx6sxsabresd.c index 5cc58ac868..a2c9aae32c 100644 --- a/board/freescale/mx6sxsabresd/mx6sxsabresd.c +++ b/board/freescale/mx6sxsabresd/mx6sxsabresd.c @@ -326,6 +326,7 @@ int board_mmc_getcd(struct mmc *mmc) int board_mmc_init(bd_t *bis) { +#ifndef CONFIG_SPL_BUILD int i, ret; /* @@ -369,6 +370,47 @@ int board_mmc_init(bd_t *bis) } return 0; +#else + 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]); +#endif } #ifdef CONFIG_FSL_QSPI @@ -423,14 +465,135 @@ int board_init(void) return 0; } -int board_late_init(void) +int checkboard(void) { + puts("Board: MX6SX SABRE SDB\n"); + return 0; } -int checkboard(void) +#ifdef CONFIG_SPL_BUILD +#include <libfdt.h> +#include <spl.h> +#include <asm/arch/mx6-ddr.h> + +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) { - puts("Board: MX6SX SABRE SDB\n"); + 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); +} - return 0; +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) */ + }; + + 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); } + +void reset_cpu(ulong addr) +{ +} +#endif |