diff options
| author | Simon Glass <sjg@chromium.org> | 2011-08-30 06:23:14 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-09-04 11:36:15 +0200 |
| commit | 858bd095e1583f86af93ac1ae8f9e28aebbd0aa5 (patch) | |
| tree | d148a54fa6161e7d13d7ee5518277e03ffbb5375 /board/nvidia/common | |
| parent | b4ba2be8dc2711ad2219186e89b4e10648d52af9 (diff) | |
Tegra2: Add additional pin multiplexing features
This adds an enum for each pin and some functions for changing the pin
muxing setup.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'board/nvidia/common')
| -rw-r--r-- | board/nvidia/common/board.c | 30 |
1 files changed, 9 insertions, 21 deletions
diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c index 945141e7d3..799dd3a629 100644 --- a/board/nvidia/common/board.c +++ b/board/nvidia/common/board.c @@ -143,19 +143,15 @@ static void pin_mux_uart(void) reg &= 0xFFF0FFFF; /* IRRX_/IRTX_SEL [19:16] = 00 UARTA */ writel(reg, &pmt->pmt_ctl_c); - reg = readl(&pmt->pmt_tri_a); - reg &= ~Z_IRRX; /* Z_IRRX = normal (0) */ - reg &= ~Z_IRTX; /* Z_IRTX = normal (0) */ - writel(reg, &pmt->pmt_tri_a); + pinmux_tristate_disable(PIN_IRRX); + pinmux_tristate_disable(PIN_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); - reg = readl(&pmt->pmt_tri_a); - reg &= ~Z_GMC; /* Z_GMC = normal (0) */ - writel(reg, &pmt->pmt_tri_a); + pinmux_tristate_disable(PIN_GMC); #endif /* CONFIG_TEGRA2_ENABLE_UARTD */ } @@ -222,13 +218,9 @@ static void pin_mux_mmc(void) reg |= (3 << 0); /* GME_SEL [1:0] = 11 SDIO4 */ writel(reg, &pmt->pmt_ctl_d); - reg = readl(&pmt->pmt_tri_a); - reg &= ~Z_ATB; /* Z_ATB = normal (0) */ - reg &= ~Z_GMA; /* Z_GMA = normal (0) */ - writel(reg, &pmt->pmt_tri_a); - reg = readl(&pmt->pmt_tri_b); - reg &= ~Z_GME; /* Z_GME = normal (0) */ - writel(reg, &pmt->pmt_tri_b); + pinmux_tristate_disable(PIN_ATB); + pinmux_tristate_disable(PIN_GMA); + pinmux_tristate_disable(PIN_GME); /* SDMMC3 */ /* SDIO3_CLK, SDIO3_CMD, SDIO3_DAT[3:0] */ @@ -239,13 +231,9 @@ static void pin_mux_mmc(void) reg |= (2 << 14); /* SDD_SEL [15:14] = 01 SDIO3 */ writel(reg, &pmt->pmt_ctl_d); - reg = readl(&pmt->pmt_tri_b); - reg &= ~Z_SDC; /* Z_SDC = normal (0) */ - reg &= ~Z_SDD; /* Z_SDD = normal (0) */ - writel(reg, &pmt->pmt_tri_b); - reg = readl(&pmt->pmt_tri_d); - reg &= ~Z_SDB; /* Z_SDB = normal (0) */ - writel(reg, &pmt->pmt_tri_d); + pinmux_tristate_disable(PIN_SDC); + pinmux_tristate_disable(PIN_SDD); + pinmux_tristate_disable(PIN_SDB); } /* |