| Vikas Manocha | 9fa32b1 | 2014-11-18 10:42:22 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * (C) Copyright 2014 |
| 3 | * Vikas Manocha, ST Micoelectronics, vikas.manocha@st.com. |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ |
| 7 | |
| 8 | #include <asm/io.h> |
| 9 | #include <asm/arch/stv0991_creg.h> |
| 10 | #include <asm/arch/stv0991_periph.h> |
| 11 | #include <asm/arch/hardware.h> |
| 12 | |
| 13 | static struct stv0991_creg *const stv0991_creg = \ |
| 14 | (struct stv0991_creg *)CREG_BASE_ADDR; |
| 15 | |
| 16 | int stv0991_pinmux_config(int peripheral) |
| 17 | { |
| 18 | switch (peripheral) { |
| 19 | case UART_GPIOC_30_31: |
| 20 | /* SSDA/SSCL pad muxing to UART Rx/Dx */ |
| 21 | writel((readl(&stv0991_creg->mux12) & GPIOC_31_MUX_MASK) | |
| 22 | CFG_GPIOC_31_UART_RX, |
| 23 | &stv0991_creg->mux12); |
| 24 | writel((readl(&stv0991_creg->mux12) & GPIOC_30_MUX_MASK) | |
| 25 | CFG_GPIOC_30_UART_TX, |
| 26 | &stv0991_creg->mux12); |
| 27 | /* SSDA/SSCL pad config to push pull*/ |
| 28 | writel((readl(&stv0991_creg->cfg_pad6) & GPIOC_31_MODE_MASK) | |
| 29 | CFG_GPIOC_31_MODE_PP, |
| 30 | &stv0991_creg->cfg_pad6); |
| 31 | writel((readl(&stv0991_creg->cfg_pad6) & GPIOC_30_MODE_MASK) | |
| 32 | CFG_GPIOC_30_MODE_HIGH, |
| 33 | &stv0991_creg->cfg_pad6); |
| 34 | break; |
| 35 | case UART_GPIOB_16_17: |
| 36 | /* ethernet rx_6/7 to UART Rx/Dx */ |
| 37 | writel((readl(&stv0991_creg->mux7) & GPIOB_17_MUX_MASK) | |
| 38 | CFG_GPIOB_17_UART_RX, |
| 39 | &stv0991_creg->mux7); |
| 40 | writel((readl(&stv0991_creg->mux7) & GPIOB_16_MUX_MASK) | |
| 41 | CFG_GPIOB_16_UART_TX, |
| 42 | &stv0991_creg->mux7); |
| 43 | break; |
| 44 | default: |
| 45 | break; |
| 46 | } |
| 47 | return 0; |
| 48 | } |