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| author | Simon Glass <sjg@chromium.org> | 2011-09-21 12:40:06 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-10-27 21:56:29 +0200 |
| commit | 20e18e051fc42774c27f07200a389edfd4606c67 (patch) | |
| tree | 9b958dccd5fc38aa24e5ce4f21a5a87728829034 /board | |
| parent | c3cf49d247d6749bdb65d9538ecd2738195e6a21 (diff) | |
| download | u-boot-imx-20e18e051fc42774c27f07200a389edfd4606c67.zip u-boot-imx-20e18e051fc42774c27f07200a389edfd4606c67.tar.gz u-boot-imx-20e18e051fc42774c27f07200a389edfd4606c67.tar.bz2 | |
tegra2: Add more pinmux functions
This adds support for changing pinmux functions of pin groups. This is done
by defining a PMUX_FUNC_... enum which can be used to select the function for
each group using pinmux_set_func(). It is also possible to enable
pullup/pulldown, and the existing tristate functionality is retained.
Also provided is a means of configuring a list of pingroups by providing a
configuration table to pinmux_config_table().
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/nvidia/common/board.c | 42 |
1 files changed, 11 insertions, 31 deletions
diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c index 35ff2ef..5ba7bda 100644 --- a/board/nvidia/common/board.c +++ b/board/nvidia/common/board.c @@ -86,21 +86,15 @@ static void clock_init_uart(void) */ static void pin_mux_uart(void) { - struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE; - u32 reg; - #if defined(CONFIG_TEGRA2_ENABLE_UARTA) - reg = readl(&pmt->pmt_ctl_c); - reg &= 0xFFF0FFFF; /* IRRX_/IRTX_SEL [19:16] = 00 UARTA */ - writel(reg, &pmt->pmt_ctl_c); + pinmux_set_func(PINGRP_IRRX, PMUX_FUNC_UARTA); + pinmux_set_func(PINGRP_IRTX, PMUX_FUNC_UARTA); pinmux_tristate_disable(PINGRP_IRRX); pinmux_tristate_disable(PINGRP_IRTX); #endif /* CONFIG_TEGRA2_ENABLE_UARTA */ #if defined(CONFIG_TEGRA2_ENABLE_UARTD) - reg = readl(&pmt->pmt_ctl_b); - reg &= 0xFFFFFFF3; /* GMC_SEL [3:2] = 00, UARTD */ - writel(reg, &pmt->pmt_ctl_b); + pinmux_set_func(PINGRP_GMC, PMUX_FUNC_UARTD); pinmux_tristate_disable(PINGRP_GMC); #endif /* CONFIG_TEGRA2_ENABLE_UARTD */ @@ -123,33 +117,19 @@ static void clock_init_mmc(void) */ static void pin_mux_mmc(void) { - struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE; - u32 reg; - - /* SDMMC4 */ - /* config 2, x8 on 2nd set of pins */ - reg = readl(&pmt->pmt_ctl_a); - reg |= (3 << 16); /* ATB_SEL [17:16] = 11 SDIO4 */ - writel(reg, &pmt->pmt_ctl_a); - reg = readl(&pmt->pmt_ctl_b); - reg |= (3 << 0); /* GMA_SEL [1:0] = 11 SDIO4 */ - writel(reg, &pmt->pmt_ctl_b); - reg = readl(&pmt->pmt_ctl_d); - reg |= (3 << 0); /* GME_SEL [1:0] = 11 SDIO4 */ - writel(reg, &pmt->pmt_ctl_d); + /* SDMMC4: config 3, x8 on 2nd set of pins */ + pinmux_set_func(PINGRP_ATB, PMUX_FUNC_SDIO4); + pinmux_set_func(PINGRP_GMA, PMUX_FUNC_SDIO4); + pinmux_set_func(PINGRP_GME, PMUX_FUNC_SDIO4); pinmux_tristate_disable(PINGRP_ATB); pinmux_tristate_disable(PINGRP_GMA); pinmux_tristate_disable(PINGRP_GME); - /* SDMMC3 */ - /* SDIO3_CLK, SDIO3_CMD, SDIO3_DAT[3:0] */ - reg = readl(&pmt->pmt_ctl_d); - reg &= 0xFFFF03FF; - reg |= (2 << 10); /* SDB_SEL [11:10] = 01 SDIO3 */ - reg |= (2 << 12); /* SDC_SEL [13:12] = 01 SDIO3 */ - reg |= (2 << 14); /* SDD_SEL [15:14] = 01 SDIO3 */ - writel(reg, &pmt->pmt_ctl_d); + /* SDMMC3: SDIO3_CLK, SDIO3_CMD, SDIO3_DAT[3:0] */ + pinmux_set_func(PINGRP_SDB, PMUX_FUNC_SDIO3); + pinmux_set_func(PINGRP_SDC, PMUX_FUNC_SDIO3); + pinmux_set_func(PINGRP_SDD, PMUX_FUNC_SDIO3); pinmux_tristate_disable(PINGRP_SDC); pinmux_tristate_disable(PINGRP_SDD); |