Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Peter Griffin | 0b49154 | 2015-07-30 18:55:20 +0100 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2015 Linaro. |
| 4 | * Peter Griffin <peter.griffin@linaro.org> |
Peter Griffin | 0b49154 | 2015-07-30 18:55:20 +0100 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <fdtdec.h> |
Simon Glass | 0f2af88 | 2020-05-10 11:40:05 -0600 | [diff] [blame] | 9 | #include <log.h> |
Peter Griffin | 0b49154 | 2015-07-30 18:55:20 +0100 | [diff] [blame] | 10 | #include <asm/gpio.h> |
| 11 | #include <asm/io.h> |
| 12 | #include <asm/arch/pinmux.h> |
| 13 | |
| 14 | struct hi6220_pinmux0_regs *pmx0 = |
| 15 | (struct hi6220_pinmux0_regs *)HI6220_PINMUX0_BASE; |
| 16 | |
| 17 | struct hi6220_pinmux1_regs *pmx1 = |
| 18 | (struct hi6220_pinmux1_regs *)HI6220_PINMUX1_BASE; |
| 19 | |
| 20 | static void hi6220_uart_config(int peripheral) |
| 21 | { |
| 22 | switch (peripheral) { |
| 23 | case PERIPH_ID_UART0: |
| 24 | writel(MUX_M0, &pmx0->iomg[48]); /* UART0_RXD */ |
| 25 | writel(MUX_M0, &pmx0->iomg[49]); /* UART0_TXD */ |
| 26 | |
| 27 | writel(DRIVE1_02MA | PULL_UP, &pmx1->iocfg[49]); /* UART0_RXD */ |
| 28 | writel(DRIVE1_02MA | PULL_UP, &pmx1->iocfg[50]); /* UART0_TXD */ |
| 29 | break; |
| 30 | |
| 31 | case PERIPH_ID_UART1: |
| 32 | writel(MUX_M0, &pmx0->iomg[50]); /* UART1_CTS_N */ |
| 33 | writel(MUX_M0, &pmx0->iomg[51]); /* UART1_RTS_N */ |
| 34 | writel(MUX_M0, &pmx0->iomg[52]); /* UART1_RXD */ |
| 35 | writel(MUX_M0, &pmx0->iomg[53]); /* UART1_TXD */ |
| 36 | |
| 37 | writel(DRIVE1_02MA | PULL_UP, &pmx1->iocfg[51]); /*UART1_CTS_N*/ |
| 38 | writel(DRIVE1_02MA | PULL_UP, &pmx1->iocfg[53]); /* UART1_RXD */ |
| 39 | writel(DRIVE1_02MA, &pmx1->iocfg[52]); /* UART1_RTS_N */ |
| 40 | writel(DRIVE1_02MA, &pmx1->iocfg[54]); /* UART1_TXD */ |
| 41 | break; |
| 42 | |
| 43 | case PERIPH_ID_UART2: |
| 44 | writel(MUX_M0, &pmx0->iomg[54]); /* UART2_CTS_N */ |
| 45 | writel(MUX_M0, &pmx0->iomg[55]); /* UART2_RTS_N */ |
| 46 | writel(MUX_M0, &pmx0->iomg[56]); /* UART2_RXD */ |
| 47 | writel(MUX_M0, &pmx0->iomg[57]); /* UART2_TXD */ |
| 48 | |
| 49 | writel(DRIVE1_02MA, &pmx1->iocfg[55]); /* UART2_CTS_N */ |
| 50 | writel(DRIVE1_02MA, &pmx1->iocfg[56]); /* UART2_RTS_N */ |
| 51 | writel(DRIVE1_02MA, &pmx1->iocfg[57]); /* UART2_RXD */ |
| 52 | writel(DRIVE1_02MA, &pmx1->iocfg[58]); /* UART2_TXD */ |
| 53 | break; |
| 54 | |
| 55 | case PERIPH_ID_UART3: |
| 56 | writel(MUX_M1, &pmx0->iomg[96]); /* UART3_CTS_N */ |
| 57 | writel(MUX_M1, &pmx0->iomg[97]); /* UART3_RTS_N */ |
| 58 | writel(MUX_M1, &pmx0->iomg[98]); /* UART3_RXD */ |
| 59 | writel(MUX_M1, &pmx0->iomg[99]); /* UART3_TXD */ |
| 60 | |
| 61 | /* UART3_TXD */ |
| 62 | writel(DRIVE1_02MA | PULL_DOWN, &pmx1->iocfg[100]); |
| 63 | /* UART3_RTS_N */ |
| 64 | writel(DRIVE1_02MA | PULL_DOWN, &pmx1->iocfg[101]); |
| 65 | /* UART3_RXD */ |
| 66 | writel(DRIVE1_02MA | PULL_DOWN, &pmx1->iocfg[102]); |
| 67 | /* UART3_TXD */ |
| 68 | writel(DRIVE1_02MA | PULL_DOWN, &pmx1->iocfg[103]); |
| 69 | break; |
| 70 | |
| 71 | case PERIPH_ID_UART4: |
| 72 | writel(MUX_M1, &pmx0->iomg[116]); /* UART4_CTS_N */ |
| 73 | writel(MUX_M1, &pmx0->iomg[117]); /* UART4_RTS_N */ |
| 74 | writel(MUX_M1, &pmx0->iomg[118]); /* UART4_RXD */ |
| 75 | writel(MUX_M1, &pmx0->iomg[119]); /* UART4_TXD */ |
| 76 | |
| 77 | /* UART4_CTS_N */ |
| 78 | writel(DRIVE1_02MA | PULL_DOWN, &pmx1->iocfg[120]); |
| 79 | /* UART4_RTS_N */ |
| 80 | writel(DRIVE1_02MA | PULL_DOWN, &pmx1->iocfg[121]); |
| 81 | /* UART4_RXD */ |
| 82 | writel(DRIVE1_02MA | PULL_DOWN, &pmx1->iocfg[122]); |
| 83 | /* UART4_TXD */ |
| 84 | writel(DRIVE1_02MA | PULL_DOWN, &pmx1->iocfg[123]); |
| 85 | break; |
| 86 | case PERIPH_ID_UART5: |
| 87 | writel(MUX_M1, &pmx0->iomg[114]); /* UART5_RXD */ |
| 88 | writel(MUX_M1, &pmx0->iomg[115]); /* UART5_TXD */ |
| 89 | |
| 90 | /* UART5_RXD */ |
| 91 | writel(DRIVE1_02MA | PULL_DOWN, &pmx1->iocfg[118]); |
| 92 | /* UART5_TXD */ |
| 93 | writel(DRIVE1_02MA | PULL_DOWN, &pmx1->iocfg[119]); |
| 94 | |
| 95 | break; |
| 96 | |
| 97 | default: |
| 98 | debug("%s: invalid peripheral %d", __func__, peripheral); |
| 99 | return; |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | static int hi6220_mmc_config(int peripheral) |
| 104 | { |
| 105 | u32 tmp; |
| 106 | |
| 107 | switch (peripheral) { |
| 108 | case PERIPH_ID_SDMMC0: |
| 109 | |
| 110 | /* eMMC pinmux config */ |
| 111 | writel(MUX_M0, &pmx0->iomg[64]); /* EMMC_CLK */ |
| 112 | writel(MUX_M0, &pmx0->iomg[65]); /* EMMC_CMD */ |
| 113 | writel(MUX_M0, &pmx0->iomg[66]); /* EMMC_DATA0 */ |
| 114 | writel(MUX_M0, &pmx0->iomg[67]); /* EMMC_DATA1 */ |
| 115 | writel(MUX_M0, &pmx0->iomg[68]); /* EMMC_DATA2 */ |
| 116 | writel(MUX_M0, &pmx0->iomg[69]); /* EMMC_DATA3 */ |
| 117 | writel(MUX_M0, &pmx0->iomg[70]); /* EMMC_DATA4 */ |
| 118 | writel(MUX_M0, &pmx0->iomg[71]); /* EMMC_DATA5 */ |
| 119 | writel(MUX_M0, &pmx0->iomg[72]); /* EMMC_DATA6 */ |
| 120 | writel(MUX_M0, &pmx0->iomg[73]); /* EMMC_DATA7 */ |
| 121 | |
| 122 | /*eMMC configure up/down/drive */ |
| 123 | writel(DRIVE1_08MA, &pmx1->iocfg[65]); /* EMMC_CLK */ |
| 124 | |
| 125 | tmp = DRIVE1_04MA | PULL_UP; |
| 126 | writel(tmp, &pmx1->iocfg[65]); /* EMMC_CMD */ |
| 127 | writel(tmp, &pmx1->iocfg[66]); /* EMMC_DATA0 */ |
| 128 | writel(tmp, &pmx1->iocfg[67]); /* EMMC_DATA1 */ |
| 129 | writel(tmp, &pmx1->iocfg[68]); /* EMMC_DATA2 */ |
| 130 | writel(tmp, &pmx1->iocfg[69]); /* EMMC_DATA3 */ |
| 131 | writel(tmp, &pmx1->iocfg[70]); /* EMMC_DATA4 */ |
| 132 | writel(tmp, &pmx1->iocfg[71]); /* EMMC_DATA5 */ |
| 133 | writel(tmp, &pmx1->iocfg[72]); /* EMMC_DATA6 */ |
| 134 | writel(tmp, &pmx1->iocfg[73]); /* EMMC_DATA7 */ |
| 135 | |
| 136 | writel(DRIVE1_04MA, &pmx1->iocfg[73]); /* EMMC_RST_N */ |
| 137 | break; |
| 138 | |
| 139 | case PERIPH_ID_SDMMC1: |
| 140 | |
| 141 | writel(MUX_M0, &pmx0->iomg[3]); /* SD_CLK */ |
| 142 | writel(MUX_M0, &pmx0->iomg[4]); /* SD_CMD */ |
| 143 | writel(MUX_M0, &pmx0->iomg[5]); /* SD_DATA0 */ |
| 144 | writel(MUX_M0, &pmx0->iomg[6]); /* SD_DATA1 */ |
| 145 | writel(MUX_M0, &pmx0->iomg[7]); /* SD_DATA2 */ |
| 146 | writel(MUX_M0, &pmx0->iomg[8]); /* SD_DATA3 */ |
| 147 | |
| 148 | writel(DRIVE1_10MA | BIT(2), &pmx1->iocfg[3]); /*SD_CLK*/ |
| 149 | writel(DRIVE1_08MA | BIT(2), &pmx1->iocfg[4]); /*SD_CMD*/ |
| 150 | writel(DRIVE1_08MA | BIT(2), &pmx1->iocfg[5]); /*SD_DATA0*/ |
| 151 | writel(DRIVE1_08MA | BIT(2), &pmx1->iocfg[6]); /*SD_DATA1*/ |
| 152 | writel(DRIVE1_08MA | BIT(2), &pmx1->iocfg[7]); /*SD_DATA2*/ |
| 153 | writel(DRIVE1_08MA | BIT(2), &pmx1->iocfg[8]); /*SD_DATA3*/ |
| 154 | break; |
| 155 | |
| 156 | default: |
| 157 | debug("%s: invalid peripheral %d", __func__, peripheral); |
| 158 | return -1; |
| 159 | } |
| 160 | |
| 161 | return 0; |
| 162 | } |
| 163 | |
| 164 | int hi6220_pinmux_config(int peripheral) |
| 165 | { |
| 166 | switch (peripheral) { |
| 167 | case PERIPH_ID_UART0: |
| 168 | case PERIPH_ID_UART1: |
| 169 | case PERIPH_ID_UART2: |
| 170 | case PERIPH_ID_UART3: |
| 171 | hi6220_uart_config(peripheral); |
| 172 | break; |
| 173 | case PERIPH_ID_SDMMC0: |
| 174 | case PERIPH_ID_SDMMC1: |
| 175 | return hi6220_mmc_config(peripheral); |
| 176 | default: |
| 177 | debug("%s: invalid peripheral %d", __func__, peripheral); |
| 178 | return -1; |
| 179 | } |
| 180 | |
| 181 | return 0; |
| 182 | } |
| 183 | |
| 184 | |