xref: /openbmc/u-boot/board/freescale/p1_twr/p1_twr.c (revision 20b9f2ea)
1 /*
2  * Copyright 2013 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <command.h>
9 #include <hwconfig.h>
10 #include <pci.h>
11 #include <i2c.h>
12 #include <asm/processor.h>
13 #include <asm/mmu.h>
14 #include <asm/cache.h>
15 #include <asm/immap_85xx.h>
16 #include <asm/fsl_pci.h>
17 #include <fsl_ddr_sdram.h>
18 #include <asm/io.h>
19 #include <asm/fsl_law.h>
20 #include <asm/fsl_lbc.h>
21 #include <asm/mp.h>
22 #include <miiphy.h>
23 #include <libfdt.h>
24 #include <fdt_support.h>
25 #include <fsl_mdio.h>
26 #include <tsec.h>
27 #include <ioports.h>
28 #include <asm/fsl_serdes.h>
29 #include <netdev.h>
30 
31 #define SYSCLK_64	64000000
32 #define SYSCLK_66	66666666
33 
34 unsigned long get_board_sys_clk(ulong dummy)
35 {
36 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
37 	par_io_t *par_io = (par_io_t *) &(gur->qe_par_io);
38 	unsigned int cpdat_val = 0;
39 
40 	/* Set-up up pin muxing based on board switch settings */
41 	cpdat_val = par_io[1].cpdat;
42 
43 	/* Check switch setting for SYSCLK select (PB3)  */
44 	if (cpdat_val & 0x10000000)
45 		return SYSCLK_64;
46 	else
47 		return SYSCLK_66;
48 
49 	return 0;
50 }
51 
52 #ifdef CONFIG_QE
53 
54 #define PCA_IOPORT_I2C_ADDR		0x23
55 #define PCA_IOPORT_OUTPUT_CMD		0x2
56 #define PCA_IOPORT_CFG_CMD		0x6
57 
58 const qe_iop_conf_t qe_iop_conf_tab[] = {
59 
60 #ifdef CONFIG_TWR_P1025
61 	/* GPIO */
62 	{1,  0, 1, 0, 0},
63 	{1,  18, 1, 0, 0},
64 
65 	/* GPIO for switch options */
66 	{1,  2, 2, 0, 0}, /* PROFIBUS_MODE_SEL */
67 	{1,  3, 2, 0, 0}, /* SYS_CLK_SELECT */
68 	{1,  29, 2, 0, 0}, /* LOCALBUS_QE_MUXSEL */
69 	{1,  30, 2, 0, 0}, /* ETH_TDM_SEL */
70 
71 	/* QE_MUX_MDC */
72 	{1,  19, 1, 0, 1}, /* QE_MUX_MDC */
73 
74 	/* QE_MUX_MDIO */
75 	{1,  20, 3, 0, 1}, /* QE_MUX_MDIO */
76 
77 	/* UCC_1_MII */
78 	{0, 23, 2, 0, 2}, /* CLK12 */
79 	{0, 24, 2, 0, 1}, /* CLK9 */
80 	{0,  7, 1, 0, 2}, /* ENET1_TXD0_SER1_TXD0 */
81 	{0,  9, 1, 0, 2}, /* ENET1_TXD1_SER1_TXD1 */
82 	{0, 11, 1, 0, 2}, /* ENET1_TXD2_SER1_TXD2 */
83 	{0, 12, 1, 0, 2}, /* ENET1_TXD3_SER1_TXD3 */
84 	{0,  6, 2, 0, 2}, /* ENET1_RXD0_SER1_RXD0 */
85 	{0, 10, 2, 0, 2}, /* ENET1_RXD1_SER1_RXD1 */
86 	{0, 14, 2, 0, 2}, /* ENET1_RXD2_SER1_RXD2 */
87 	{0, 15, 2, 0, 2}, /* ENET1_RXD3_SER1_RXD3 */
88 	{0,  5, 1, 0, 2}, /* ENET1_TX_EN_SER1_RTS_B */
89 	{0, 13, 1, 0, 2}, /* ENET1_TX_ER */
90 	{0,  4, 2, 0, 2}, /* ENET1_RX_DV_SER1_CTS_B */
91 	{0,  8, 2, 0, 2}, /* ENET1_RX_ER_SER1_CD_B */
92 	{0, 17, 2, 0, 2}, /* ENET1_CRS */
93 	{0, 16, 2, 0, 2}, /* ENET1_COL */
94 
95 	/* UCC_5_RMII */
96 	{1, 11, 2, 0, 1}, /* CLK13 */
97 	{1, 7,  1, 0, 2}, /* ENET5_TXD0_SER5_TXD0 */
98 	{1, 10, 1, 0, 2}, /* ENET5_TXD1_SER5_TXD1 */
99 	{1, 6, 2, 0, 2}, /* ENET5_RXD0_SER5_RXD0 */
100 	{1, 9, 2, 0, 2}, /* ENET5_RXD1_SER5_RXD1 */
101 	{1, 5, 1, 0, 2}, /* ENET5_TX_EN_SER5_RTS_B */
102 	{1, 4, 2, 0, 2}, /* ENET5_RX_DV_SER5_CTS_B */
103 	{1, 8, 2, 0, 2}, /* ENET5_RX_ER_SER5_CD_B */
104 
105 	/* TDMA - clock option is configured in OS based on board setting */
106 	{1, 23, 2, 0, 2}, /* TDMA_TXD */
107 	{1, 25, 2, 0, 2}, /* TDMA_RXD */
108 	{1, 26, 1, 0, 2}, /* TDMA_SYNC */
109 #endif
110 
111 	{0,  0, 0, 0, QE_IOP_TAB_END} /* END of table */
112 };
113 #endif
114 
115 int board_early_init_f(void)
116 {
117 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
118 
119 	setbits_be32(&gur->pmuxcr,
120 			(MPC85xx_PMUXCR_SDHC_CD | MPC85xx_PMUXCR_SDHC_WP));
121 
122 	/* SDHC_DAT[4:7] not exposed to pins (use as SPI) */
123 	clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_SD_DATA);
124 
125 	return 0;
126 }
127 
128 int checkboard(void)
129 {
130 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
131 	u8 boot_status;
132 
133 	printf("Board: %s\n", CONFIG_BOARDNAME);
134 
135 	boot_status = ((gur->porbmsr) >> MPC85xx_PORBMSR_ROMLOC_SHIFT) & 0xf;
136 	puts("rom_loc: ");
137 	if (boot_status == PORBMSR_ROMLOC_NOR)
138 		puts("nor flash");
139 	else if (boot_status == PORBMSR_ROMLOC_SDHC)
140 		puts("sd");
141 	else
142 		puts("unknown");
143 	puts("\n");
144 
145 	return 0;
146 }
147 
148 #ifdef CONFIG_PCI
149 void pci_init_board(void)
150 {
151 	fsl_pcie_init_board(0);
152 }
153 #endif
154 
155 int board_early_init_r(void)
156 {
157 	const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
158 	int flash_esel = find_tlb_idx((void *)flashbase, 1);
159 
160 	/*
161 	 * Remap Boot flash region to caching-inhibited
162 	 * so that flash can be erased properly.
163 	 */
164 
165 	/* Flush d-cache and invalidate i-cache of any FLASH data */
166 	flush_dcache();
167 	invalidate_icache();
168 
169 	if (flash_esel == -1) {
170 		/* very unlikely unless something is messed up */
171 		puts("Error: Could not find TLB for FLASH BASE\n");
172 		flash_esel = 2;	/* give our best effort to continue */
173 	} else {
174 		/* invalidate existing TLB entry for flash */
175 		disable_tlb(flash_esel);
176 	}
177 
178 	set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS, /* tlb, epn, rpn */
179 		MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,           /* perms, wimge */
180 		0, flash_esel, BOOKE_PAGESZ_64M, 1);/* ts, esel, tsize, iprot */
181 	return 0;
182 }
183 
184 int board_eth_init(bd_t *bis)
185 {
186 	struct fsl_pq_mdio_info mdio_info;
187 	struct tsec_info_struct tsec_info[4];
188 	ccsr_gur_t *gur __attribute__((unused)) =
189 		(void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
190 	int num = 0;
191 
192 #ifdef CONFIG_TSEC1
193 	SET_STD_TSEC_INFO(tsec_info[num], 1);
194 	num++;
195 #endif
196 #ifdef CONFIG_TSEC2
197 	SET_STD_TSEC_INFO(tsec_info[num], 2);
198 	if (is_serdes_configured(SGMII_TSEC2)) {
199 		printf("eTSEC2 is in sgmii mode.\n");
200 		tsec_info[num].flags |= TSEC_SGMII;
201 	}
202 	num++;
203 #endif
204 #ifdef CONFIG_TSEC3
205 	SET_STD_TSEC_INFO(tsec_info[num], 3);
206 	num++;
207 #endif
208 
209 	if (!num) {
210 		printf("No TSECs initialized\n");
211 		return 0;
212 	}
213 
214 	mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
215 	mdio_info.name = DEFAULT_MII_NAME;
216 
217 	fsl_pq_mdio_init(bis, &mdio_info);
218 
219 	tsec_eth_init(bis, tsec_info, num);
220 
221 #if defined(CONFIG_UEC_ETH)
222 	/* QE0 and QE3 need to be exposed for UCC1
223 	 * and UCC5 Eth mode (in PMUXCR register).
224 	 * Currently QE/LBC muxed pins assumed to be
225 	 * LBC for U-Boot and PMUXCR updated by OS if required */
226 
227 	uec_standard_init(bis);
228 #endif
229 
230 	return pci_eth_init(bis);
231 }
232 
233 #if defined(CONFIG_QE)
234 static void fdt_board_fixup_qe_pins(void *blob)
235 {
236 	int node;
237 
238 	if (!hwconfig("qe")) {
239 		/* For QE and eLBC pins multiplexing,
240 		 * When don't use QE function, remove
241 		 * qe node from dt blob.
242 		 */
243 		node = fdt_path_offset(blob, "/qe");
244 		if (node >= 0)
245 			fdt_del_node(blob, node);
246 	} else {
247 		/* For TWR Peripheral Modules - TWR-SER2
248 		 * board only can support Signal Port MII,
249 		 * so delete one UEC node when use MII port.
250 		 */
251 		if (hwconfig("mii"))
252 			node = fdt_path_offset(blob, "/qe/ucc@2400");
253 		else
254 			node = fdt_path_offset(blob, "/qe/ucc@2000");
255 		if (node >= 0)
256 			fdt_del_node(blob, node);
257 	}
258 
259 	return;
260 }
261 #endif
262 
263 #ifdef CONFIG_OF_BOARD_SETUP
264 int ft_board_setup(void *blob, bd_t *bd)
265 {
266 	phys_addr_t base;
267 	phys_size_t size;
268 
269 	ft_cpu_setup(blob, bd);
270 
271 	base = env_get_bootm_low();
272 	size = env_get_bootm_size();
273 
274 	fdt_fixup_memory(blob, (u64)base, (u64)size);
275 
276 	FT_FSL_PCI_SETUP;
277 
278 #ifdef CONFIG_QE
279 	do_fixup_by_compat(blob, "fsl,qe", "status", "okay",
280 			sizeof("okay"), 0);
281 #endif
282 #if defined(CONFIG_TWR_P1025)
283 	fdt_board_fixup_qe_pins(blob);
284 #endif
285 	fsl_fdt_fixup_dr_usb(blob, bd);
286 
287 	return 0;
288 }
289 #endif
290