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board: add SDHCI support for PIC32MZDASK board.

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Enable MMC, SDHCI, FAT_FS support for PIC32MZ[DA] StarterKit.
Also add custom scripts, rules to boot Linux from microSD card.

Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
This commit is contained in:
Purna Chandra Mandal 2016-01-28 15:30:19 +05:30 committed by Daniel Schwierzeck
parent 102142c9e0
commit c76eb72c43
4 changed files with 77 additions and 3 deletions
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11
arch/mips/dts/pic32mzda.dtsi
View File

@ -150,4 +150,15 @@
#gpio-cells = <2>;
};
};
sdhci: sdhci@1f8ec000 {
compatible = "microchip,pic32mzda-sdhci";
reg = <0x1f8ec000 0x100>;
interrupts = <191 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock REF4CLK>, <&clock PB5CLK>;
clock-names = "base_clk", "sys_clk";
clock-freq-min-max = <25000000>,<25000000>;
bus-width = <4>;
status = "disabled";
};
};

7
arch/mips/dts/pic32mzda_sk.dts
View File

@ -23,6 +23,9 @@
};
&clock {
microchip,refo2-frequency = <50000000>;
microchip,refo4-frequency = <25000000>;
microchip,refo5-frequency = <40000000>;
status = "okay";
u-boot,dm-pre-reloc;
};
@ -36,3 +39,7 @@
status = "okay";
u-boot,dm-pre-reloc;
};
&sdhci {
status = "okay";
};

3
configs/pic32mzdask_defconfig
View File

@ -9,7 +9,6 @@ CONFIG_DEFAULT_DEVICE_TREE="pic32mzda_sk"
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="dask # "
# CONFIG_CMD_IMLS is not set
# CONFIG_CMD_EXPORTENV is not set
# CONFIG_CMD_SAVEENV is not set
CONFIG_LOOPW=y
CONFIG_CMD_MEMTEST=y
@ -22,6 +21,8 @@ CONFIG_CMD_GPIO=y
CONFIG_CMD_TIME=y
CONFIG_OF_EMBED=y
CONFIG_CLK=y
CONFIG_DM_MMC=y
CONFIG_PIC32_SDHCI=y
CONFIG_PINCTRL=y
# CONFIG_PINCTRL_FULL is not set
CONFIG_SYS_VSNPRINTF=y

59
include/configs/pic32mzdask.h
View File

@ -46,6 +46,7 @@
#define CONFIG_SYS_LOAD_ADDR 0x88500000 /* default load address */
#define CONFIG_SYS_ENV_ADDR 0x88300000
#define CONFIG_SYS_FDT_ADDR 0x89d00000
/* Memory Test */
#define CONFIG_SYS_MEMTEST_START 0x88000000
@ -77,6 +78,33 @@
*/
#define CONFIG_OF_LIBFDT 1
/*-----------------------------------------------------------------------
* SDHC Configuration
*/
#define CONFIG_SDHCI
#define CONFIG_MMC
#define CONFIG_GENERIC_MMC
#define CONFIG_CMD_MMC
/*-----------------------------------------------------------------------
* File System Configuration
*/
/* FAT FS */
#define CONFIG_DOS_PARTITION
#define CONFIG_PARTITION_UUIDS
#define CONFIG_SUPPORT_VFAT
#define CONFIG_FS_FAT
#define CONFIG_FAT_WRITE
#define CONFIG_CMD_FS_GENERIC
#define CONFIG_CMD_PART
#define CONFIG_CMD_FAT
/* EXT4 FS */
#define CONFIG_FS_EXT4
#define CONFIG_CMD_EXT2
#define CONFIG_CMD_EXT4
#define CONFIG_CMD_EXT4_WRITE
/* -------------------------------------------------
* Environment
*/
@ -87,7 +115,34 @@
* Board boot configuration
*/
#define CONFIG_TIMESTAMP /* Print image info with timestamp */
#define CONFIG_BOOTDELAY 5 /* autoboot after X seconds */
#undef CONFIG_BOOTARGS
#define CONFIG_BOOTDELAY 5
#define MEM_LAYOUT_ENV_SETTINGS \
"kernel_addr_r="__stringify(CONFIG_SYS_LOAD_ADDR)"\0" \
"fdt_addr_r="__stringify(CONFIG_SYS_FDT_ADDR)"\0" \
"scriptaddr="__stringify(CONFIG_SYS_ENV_ADDR)"\0"
#define CONFIG_LEGACY_BOOTCMD_ENV \
"legacy_bootcmd= " \
"if load mmc 0 ${scriptaddr} uEnv.txt; then " \
"env import -tr ${scriptaddr} ${filesize}; " \
"if test -n \"${bootcmd_uenv}\" ; then " \
"echo Running bootcmd_uenv ...; " \
"run bootcmd_uenv; " \
"fi; " \
"fi; \0"
#define BOOT_TARGET_DEVICES(func) \
func(MMC, mmc, 0)
#include <config_distro_bootcmd.h>
#define CONFIG_EXTRA_ENV_SETTINGS \
MEM_LAYOUT_ENV_SETTINGS \
CONFIG_LEGACY_BOOTCMD_ENV \
BOOTENV
#undef CONFIG_BOOTCOMMAND
#define CONFIG_BOOTCOMMAND "run distro_bootcmd || run legacy_bootcmd"
#endif /* __PIC32MZDASK_CONFIG_H */