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