From: Fabio Estevam fabio.estevam@freescale.com

Cubox-i and Hummingboard support several MX6 SoCs: mx6solo, mx6dual-lite, mx6dual and mx6quad. Add support for the different SoC/memory sizes combinations.

DDR initialization values were extracted from Solid-run internal U-boot.

Tested on a CuBox-i4Pro, HummingBoard-i2eX and HummingBoard-i1.

Signed-off-by: Rabeeh Khoury rabeeh@solid-run.com Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- Changes since v3: - Add Rabeeh's SOB

board/solidrun/mx6cuboxi/mx6cuboxi.c | 134 ++++++++++++++++++++++++++++++++--- 1 file changed, 125 insertions(+), 9 deletions(-)

diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c index 0377dc4..1f240ae 100644 --- a/board/solidrun/mx6cuboxi/mx6cuboxi.c +++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c @@ -175,7 +175,7 @@ int checkboard(void)

#ifdef CONFIG_SPL_BUILD #include <asm/arch/mx6-ddr.h> -static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = { +static const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = { .dram_sdclk_0 = 0x00020030, .dram_sdclk_1 = 0x00020030, .dram_cas = 0x00020030, @@ -204,7 +204,36 @@ static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = { .dram_dqm7 = 0x00020030, };

-static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = { +static const struct mx6sdl_iomux_ddr_regs mx6dl_ddr_ioregs = { + .dram_sdclk_0 = 0x00000028, + .dram_sdclk_1 = 0x00000028, + .dram_cas = 0x00000028, + .dram_ras = 0x00000028, + .dram_reset = 0x000c0028, + .dram_sdcke0 = 0x00003000, + .dram_sdcke1 = 0x00003000, + .dram_sdba2 = 0x00000000, + .dram_sdodt0 = 0x00003030, + .dram_sdodt1 = 0x00003030, + .dram_sdqs0 = 0x00000028, + .dram_sdqs1 = 0x00000028, + .dram_sdqs2 = 0x00000028, + .dram_sdqs3 = 0x00000028, + .dram_sdqs4 = 0x00000028, + .dram_sdqs5 = 0x00000028, + .dram_sdqs6 = 0x00000028, + .dram_sdqs7 = 0x00000028, + .dram_dqm0 = 0x00000028, + .dram_dqm1 = 0x00000028, + .dram_dqm2 = 0x00000028, + .dram_dqm3 = 0x00000028, + .dram_dqm4 = 0x00000028, + .dram_dqm5 = 0x00000028, + .dram_dqm6 = 0x00000028, + .dram_dqm7 = 0x00000028, +}; + +static const struct mx6dq_iomux_grp_regs mx6q_grp_ioregs = { .grp_ddr_type = 0x000C0000, .grp_ddrmode_ctl = 0x00020000, .grp_ddrpke = 0x00000000, @@ -221,7 +250,25 @@ static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = { .grp_b7ds = 0x00000030, };

-static const struct mx6_mmdc_calibration mx6_mmcd_calib = { +static const struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = { + .grp_ddr_type = 0x000c0000, + .grp_ddrmode_ctl = 0x00020000, + .grp_ddrpke = 0x00000000, + .grp_addds = 0x00000028, + .grp_ctlds = 0x00000028, + .grp_ddrmode = 0x00020000, + .grp_b0ds = 0x00000028, + .grp_b1ds = 0x00000028, + .grp_b2ds = 0x00000028, + .grp_b3ds = 0x00000028, + .grp_b4ds = 0x00000028, + .grp_b5ds = 0x00000028, + .grp_b6ds = 0x00000028, + .grp_b7ds = 0x00000028, +}; + +/* microSOM with Dual processor and 1GB memory */ +static const struct mx6_mmdc_calibration mx6q_1g_mmcd_calib = { .p0_mpwldectrl0 = 0x00000000, .p0_mpwldectrl1 = 0x00000000, .p1_mpwldectrl0 = 0x00000000, @@ -236,7 +283,49 @@ static const struct mx6_mmdc_calibration mx6_mmcd_calib = { .p1_mpwrdlctl = 0x422a423c, };

-static struct mx6_ddr3_cfg mem_ddr = { +/* microSOM with Quad processor and 2GB memory */ +static const struct mx6_mmdc_calibration mx6q_2g_mmcd_calib = { + .p0_mpwldectrl0 = 0x00000000, + .p0_mpwldectrl1 = 0x00000000, + .p1_mpwldectrl0 = 0x00000000, + .p1_mpwldectrl1 = 0x00000000, + .p0_mpdgctrl0 = 0x0314031c, + .p0_mpdgctrl1 = 0x023e0304, + .p1_mpdgctrl0 = 0x03240330, + .p1_mpdgctrl1 = 0x03180260, + .p0_mprddlctl = 0x3630323c, + .p1_mprddlctl = 0x3436283a, + .p0_mpwrdlctl = 0x36344038, + .p1_mpwrdlctl = 0x422a423c, +}; + +/* microSOM with Solo processor and 512MB memory */ +static const struct mx6_mmdc_calibration mx6dl_512m_mmcd_calib = { + .p0_mpwldectrl0 = 0x0045004D, + .p0_mpwldectrl1 = 0x003A0047, + .p0_mpdgctrl0 = 0x023C0224, + .p0_mpdgctrl1 = 0x02000220, + .p0_mprddlctl = 0x44444846, + .p0_mpwrdlctl = 0x32343032, +}; + +/* microSOM with Dual lite processor and 1GB memory */ +static const struct mx6_mmdc_calibration mx6dl_1g_mmcd_calib = { + .p0_mpwldectrl0 = 0x0045004D, + .p0_mpwldectrl1 = 0x003A0047, + .p1_mpwldectrl0 = 0x001F001F, + .p1_mpwldectrl1 = 0x00210035, + .p0_mpdgctrl0 = 0x023C0224, + .p0_mpdgctrl1 = 0x02000220, + .p1_mpdgctrl0 = 0x02200220, + .p1_mpdgctrl1 = 0x02000220, + .p0_mprddlctl = 0x44444846, + .p1_mprddlctl = 0x4042463C, + .p0_mpwrdlctl = 0x32343032, + .p1_mpwrdlctl = 0x36363430, +}; + +static struct mx6_ddr3_cfg mem_ddr_2g = { .mem_speed = 1600, .density = 2, .width = 16, @@ -250,6 +339,19 @@ static struct mx6_ddr3_cfg mem_ddr = { .SRT = 1, };

+static struct mx6_ddr3_cfg mem_ddr_4g = { + .mem_speed = 1600, + .density = 4, + .width = 16, + .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; @@ -278,11 +380,11 @@ static void gpr_init(void) * This section requires the differentiation between Solidrun mx6 boards, but * for now, it will configure only for the mx6dual hummingboard version. */ -static void spl_dram_init(void) +static void spl_dram_init(int width) { struct mx6_ddr_sysinfo sysinfo = { /* width of data bus: 0=16, 1=32, 2=64 */ - .dsize = 2, + .dsize = width / 32, /* config for full 4GB range so that get_mem_size() works */ .cs_density = 32, /* 32Gb per CS */ .ncs = 1, /* single chip select */ @@ -297,8 +399,19 @@ static void spl_dram_init(void) .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */ };

- mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs); - mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr); + if (is_cpu_type(MXC_CPU_MX6D) || is_cpu_type(MXC_CPU_MX6Q)) + mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs); + else + mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs); + + if (is_cpu_type(MXC_CPU_MX6D)) + mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g); + else if (is_cpu_type(MXC_CPU_MX6Q)) + mx6_dram_cfg(&sysinfo, &mx6q_2g_mmcd_calib, &mem_ddr_4g); + else if (is_cpu_type(MXC_CPU_MX6DL)) + mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g); + else if (is_cpu_type(MXC_CPU_MX6SOLO)) + mx6_dram_cfg(&sysinfo, &mx6dl_512m_mmcd_calib, &mem_ddr_2g); }

void board_init_f(ulong dummy) @@ -319,7 +432,10 @@ void board_init_f(ulong dummy) preloader_console_init();

/* DDR initialization */ - spl_dram_init(); + if (is_cpu_type(MXC_CPU_MX6SOLO)) + spl_dram_init(32); + else + spl_dram_init(64);

/* Clear the BSS. */ memset(__bss_start, 0, __bss_end - __bss_start);

From: Fabio Estevam fabio.estevam@freescale.com

Use the more standard fdtfile and fdtaddr variable names.

Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- Changes since v3: - Newly introduced in this series as per Vagrant Cascadian's suggestion

include/configs/mx6cuboxi.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/configs/mx6cuboxi.h b/include/configs/mx6cuboxi.h index 5d58b16..bc7c577 100644 --- a/include/configs/mx6cuboxi.h +++ b/include/configs/mx6cuboxi.h @@ -88,8 +88,8 @@ #define CONFIG_EXTRA_ENV_SETTINGS \ "script=boot.scr\0" \ "image=zImage\0" \ - "fdt_file=" CONFIG_DEFAULT_FDT_FILE "\0" \ - "fdt_addr=0x18000000\0" \ + "fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \ + "fdtaddr=0x18000000\0" \ "boot_fdt=try\0" \ "ip_dyn=yes\0" \ "console=" CONFIG_CONSOLE_DEV "\0" \ @@ -117,12 +117,12 @@ "bootscript=echo Running bootscript from mmc ...; " \ "source\0" \ "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \ - "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \ + "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdtaddr} ${fdtfile}\0" \ "mmcboot=echo Booting from mmc ...; " \ "run mmcargs; " \ "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \ "if run loadfdt; then " \ - "bootz ${loadaddr} - ${fdt_addr}; " \ + "bootz ${loadaddr} - ${fdtaddr}; " \ "else " \ "if test ${boot_fdt} = try; then " \ "bootz; " \ @@ -145,8 +145,8 @@ "fi; " \ "${get_cmd} ${image}; " \ "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \ - "if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \ - "bootz ${loadaddr} - ${fdt_addr}; " \ + "if ${get_cmd} ${fdtaddr} ${fdtfile}; then " \ + "bootz ${loadaddr} - ${fdtaddr}; " \ "else " \ "if test ${boot_fdt} = try; then " \ "bootz; " \

From: Fabio Estevam fabio.estevam@freescale.com

Instead of hardcoding the 'fdtfile' variable, let's detect the SoC and board variant on the fly and change the dtb name.

Based on the scheme done on am335x board.

Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- Changes since v3: - Based on the scheme done on am335x board as per Tom Rini's suggestion

board/solidrun/mx6cuboxi/mx6cuboxi.c | 25 +++++++++++++++++++++++++ include/configs/mx6cuboxi.h | 19 ++++++++++++++++--- 2 files changed, 41 insertions(+), 3 deletions(-)

diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c index 83410b2..e06186e 100644 --- a/board/solidrun/mx6cuboxi/mx6cuboxi.c +++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c @@ -212,6 +212,31 @@ int checkboard(void) return 0; }

+static bool is_mx6q(void) +{ + if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D)) + return true; + else + return false; +} + +int board_late_init(void) +{ +#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG + if (is_hummingboard()) + setenv("board_name", "HUMMINGBOARD"); + else + setenv("board_name", "CUBOXI"); + + if (is_mx6q) + setenv("board_rev", "MX6Q"); + else + setenv("board_rev", "MX6DL"); +#endif + + return 0; +} + #ifdef CONFIG_SPL_BUILD #include <asm/arch/mx6-ddr.h> static const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = { diff --git a/include/configs/mx6cuboxi.h b/include/configs/mx6cuboxi.h index bc7c577..32e0e5e 100644 --- a/include/configs/mx6cuboxi.h +++ b/include/configs/mx6cuboxi.h @@ -29,6 +29,7 @@

#define CONFIG_SYS_MALLOC_LEN (2 * SZ_1M) #define CONFIG_BOARD_EARLY_INIT_F +#define CONFIG_BOARD_LATE_INIT #define CONFIG_MXC_GPIO #define CONFIG_MXC_UART #define CONFIG_CMD_FUSE @@ -81,14 +82,14 @@ #define CONFIG_MXC_UART_BASE UART1_BASE #define CONFIG_CONSOLE_DEV "ttymxc0" #define CONFIG_MMCROOT "/dev/mmcblk0p2" -#define CONFIG_DEFAULT_FDT_FILE "imx6q-hummingboard.dtb" #define CONFIG_SYS_FSL_USDHC_NUM 1 #define CONFIG_SYS_MMC_ENV_DEV 0 /* SDHC2 */

+#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG #define CONFIG_EXTRA_ENV_SETTINGS \ "script=boot.scr\0" \ "image=zImage\0" \ - "fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \ + "fdtfile=undefined\0" \ "fdtaddr=0x18000000\0" \ "boot_fdt=try\0" \ "ip_dyn=yes\0" \ @@ -156,9 +157,21 @@ "fi; " \ "else " \ "bootz; " \ - "fi;\0" + "fi;\0" \ + "findfdt="\ + "if test $board_name = HUMMINGBOARD && test $board_rev = MX6Q ; then " \ + "setenv fdtfile imx6q-hummingboard.dtb; fi; " \ + "if test $board_name = HUMMINGBOARD && test $board_rev = MX6DL ; then " \ + "setenv fdtfile imx6dl-hummingboard.dtb; fi; " \ + "if test $board_name = CUBOXI && test $board_rev = MX6Q ; then " \ + "setenv fdtfile imx6q-cubox-i.dtb; fi; " \ + "if test $board_name = CUBOXI && test $board_rev = MX6DL ; then " \ + "setenv fdtfile imx6dl-cubox-i.dtb; fi; " \ + "if test $fdtfile = undefined; then " \ + "echo WARNING: Could not determine dtb to use; fi; \0" \

#define CONFIG_BOOTCOMMAND \ + "run findfdt; " \ "mmc dev ${mmcdev};" \ "if mmc rescan; then " \ "if run loadbootscript; then " \