From 477393e7875cf4261f107fdfb8887309ea7fc3f7 Mon Sep 17 00:00:00 2001 From: Tom Warren Date: Mon, 11 Mar 2013 16:43:49 -0700 Subject: Tegra114: Dalmore: Add pad config tables/code based on pinmux code Pad config registers exist in APB_MISC_GP space, and control slew rate, drive strengh, schmidt, high-speed, and low-power modes for all of the pingroups in Tegra30. This builds off of the pinmux way of constructing init tables to configure select pads (SDIOCFG, for instance) during pinmux_init(). Currently, no padcfg entries exist. SDIO3CFG will be added when the MMC driver is added as per the TRM to work with the SD-card slot on Dalmore E1611. Signed-off-by: Tom Warren Reviewed-by: Stephen Warren --- arch/arm/include/asm/arch-tegra114/pinmux.h | 100 ++++++++++++++++++++++++---- 1 file changed, 86 insertions(+), 14 deletions(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/arch-tegra114/pinmux.h b/arch/arm/include/asm/arch-tegra114/pinmux.h index 53905cb8e9..9c22c08b6e 100644 --- a/arch/arm/include/asm/arch-tegra114/pinmux.h +++ b/arch/arm/include/asm/arch-tegra114/pinmux.h @@ -215,34 +215,35 @@ enum pdrive_pingrp { PDRIVE_PINGROUP_AT5, PDRIVE_PINGROUP_CDEV1, PDRIVE_PINGROUP_CDEV2, - PDRIVE_PINGROUP_CSUS, - PDRIVE_PINGROUP_DAP1, + PDRIVE_PINGROUP_DAP1 = 10, /* offset 0x890 */ PDRIVE_PINGROUP_DAP2, PDRIVE_PINGROUP_DAP3, PDRIVE_PINGROUP_DAP4, PDRIVE_PINGROUP_DBG, - PDRIVE_PINGROUP_SDIO3, + PDRIVE_PINGROUP_SDIO3 = 18, /* offset 0x8B0 */ PDRIVE_PINGROUP_SPI, PDRIVE_PINGROUP_UAA, PDRIVE_PINGROUP_UAB, PDRIVE_PINGROUP_UART2, PDRIVE_PINGROUP_UART3, - PDRIVE_PINGROUP_SDIO1 = 33, /* offset 0x8ec */ - PDRIVE_PINGROUP_CRT = 36, /* offset 0x8f8 */ - PDRIVE_PINGROUP_DDC, + PDRIVE_PINGROUP_SDIO1 = 33, /* offset 0x8EC */ + PDRIVE_PINGROUP_DDC = 37, /* offset 0x8FC */ PDRIVE_PINGROUP_GMA, - PDRIVE_PINGROUP_GME, + PDRIVE_PINGROUP_GME = 42, /* offset 0x910 */ PDRIVE_PINGROUP_GMF, PDRIVE_PINGROUP_GMG, PDRIVE_PINGROUP_GMH, PDRIVE_PINGROUP_OWR, PDRIVE_PINGROUP_UAD, - PDRIVE_PINGROUP_GPV, PDRIVE_PINGROUP_DEV3 = 49, /* offset 0x92c */ PDRIVE_PINGROUP_CEC = 52, /* offset 0x938 */ - PDRIVE_PINGROUP_AT6, + PDRIVE_PINGROUP_AT6 = 75, /* offset 0x994 */ PDRIVE_PINGROUP_DAP5, PDRIVE_PINGROUP_VBUS, + PDRIVE_PINGROUP_AO3, + PDRIVE_PINGROUP_HVC, + PDRIVE_PINGROUP_SDIO4, + PDRIVE_PINGROUP_AO0, PDRIVE_PINGROUP_COUNT, }; @@ -470,10 +471,73 @@ enum pmux_vddio { PMUX_VDDIO_NONE }; -/* T114 pin drive group and pin mux registers */ -#define PDRIVE_PINGROUP_OFFSET (0x868 >> 2) -#define PMUX_OFFSET ((0x3000 >> 2) - PDRIVE_PINGROUP_OFFSET - \ - PDRIVE_PINGROUP_COUNT) +#define PGRP_SLWF_NONE -1 +#define PGRP_SLWF_MAX 3 +#define PGRP_SLWR_NONE PGRP_SLWF_NONE +#define PGRP_SLWR_MAX PGRP_SLWF_MAX + +#define PGRP_DRVUP_NONE -1 +#define PGRP_DRVUP_MAX 127 +#define PGRP_DRVDN_NONE PGRP_DRVUP_NONE +#define PGRP_DRVDN_MAX PGRP_DRVUP_MAX + +#define PGRP_SCHMT_NONE -1 +#define PGRP_HSM_NONE PGRP_SCHMT_NONE + +/* return 1 if a padgrp is in range */ +#define pmux_padgrp_isvalid(pd) (((pd) >= 0) && ((pd) < PDRIVE_PINGROUP_COUNT)) + +/* return 1 if a slew-rate rising/falling edge value is in range */ +#define pmux_pad_slw_isvalid(slw) (((slw) == PGRP_SLWF_NONE) || \ + (((slw) >= 0) && ((slw) <= PGRP_SLWF_MAX))) + +/* return 1 if a driver output pull-up/down strength code value is in range */ +#define pmux_pad_drv_isvalid(drv) (((drv) == PGRP_DRVUP_NONE) || \ + (((drv) >= 0) && ((drv) <= PGRP_DRVUP_MAX))) + +/* return 1 if a low-power mode value is in range */ +#define pmux_pad_lpmd_isvalid(lpm) (((lpm) == PGRP_LPMD_NONE) || \ + (((lpm) >= 0) && ((lpm) <= PGRP_LPMD_X))) + +/* Defines a pin group cfg's low-power mode select */ +enum pgrp_lpmd { + PGRP_LPMD_X8 = 0, + PGRP_LPMD_X4, + PGRP_LPMD_X2, + PGRP_LPMD_X, + PGRP_LPMD_NONE = -1, +}; + +/* Defines whether a pin group cfg's schmidt is enabled or not */ +enum pgrp_schmt { + PGRP_SCHMT_DISABLE = 0, + PGRP_SCHMT_ENABLE = 1, +}; + +/* Defines whether a pin group cfg's high-speed mode is enabled or not */ +enum pgrp_hsm { + PGRP_HSM_DISABLE = 0, + PGRP_HSM_ENABLE = 1, +}; + +/* + * This defines the configuration for a pin group's pad control config + */ +struct padctrl_config { + enum pdrive_pingrp padgrp; /* pin group PDRIVE_PINGRP_x */ + int slwf; /* falling edge slew */ + int slwr; /* rising edge slew */ + int drvup; /* pull-up drive strength */ + int drvdn; /* pull-down drive strength */ + enum pgrp_lpmd lpmd; /* low-power mode selection */ + enum pgrp_schmt schmt; /* schmidt enable */ + enum pgrp_hsm hsm; /* high-speed mode enable */ +}; + +/* t114 pin drive group and pin mux registers */ +#define PDRIVE_PINGROUP_OFFSET (0x868 >> 2) +#define PMUX_OFFSET ((0x3000 >> 2) - PDRIVE_PINGROUP_OFFSET - \ + PDRIVE_PINGROUP_COUNT) struct pmux_tri_ctlr { uint pmt_reserved0; /* ABP_MISC_PP_ reserved offset 00 */ uint pmt_reserved1; /* ABP_MISC_PP_ reserved offset 04 */ @@ -541,4 +605,12 @@ void pinmux_config_table(struct pingroup_config *config, int len); /* Set a group of pins from a table */ void pinmux_init(void); -#endif /* _TEGRA114_PINMUX_H_ */ +/** + * Set the GP pad configs + * + * @param config List of config items + * @param len Number of config items in list + */ +void padgrp_config_table(struct padctrl_config *config, int len); + +#endif /* _TEGRA114_PINMUX_H_ */ -- cgit v1.2.1