2 * Copyright (C) ST-Ericsson SA 2009
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include <asm/types.h>
26 #include <asm/errno.h>
27 #include <asm/arch/db8500_pincfg.h>
28 #include <asm/arch/prcmu.h>
29 #include <asm/arch/hardware.h>
30 #include <asm/arch/sys_proto.h>
33 #include "../../../drivers/mmc/arm_pl180_mmci.h"
35 #include "db8500_pins.h"
38 * Get a global data pointer
40 DECLARE_GLOBAL_DATA_PTR;
43 * Memory controller register
45 #define DMC_BASE_ADDR 0x80156000
46 #define DMC_CTL_97 (DMC_BASE_ADDR + 0x184)
49 * GPIO pin config common for MOP500/HREF boards
51 unsigned long gpio_cfg_common[] = {
65 GPIO145_SSP0_RXD | PIN_PULL_DOWN,
68 /* MMC0 (MicroSD card) */
69 GPIO18_MC0_CMDDIR | PIN_OUTPUT_HIGH,
70 GPIO19_MC0_DAT0DIR | PIN_OUTPUT_HIGH,
71 GPIO20_MC0_DAT2DIR | PIN_OUTPUT_HIGH,
72 GPIO21_MC0_DAT31DIR | PIN_OUTPUT_HIGH,
73 GPIO22_MC0_FBCLK | PIN_INPUT_NOPULL,
74 GPIO23_MC0_CLK | PIN_OUTPUT_LOW,
75 GPIO24_MC0_CMD | PIN_INPUT_PULLUP,
76 GPIO25_MC0_DAT0 | PIN_INPUT_PULLUP,
77 GPIO26_MC0_DAT1 | PIN_INPUT_PULLUP,
78 GPIO27_MC0_DAT2 | PIN_INPUT_PULLUP,
79 GPIO28_MC0_DAT3 | PIN_INPUT_PULLUP,
81 /* MMC4 (On-board eMMC) */
82 GPIO197_MC4_DAT3 | PIN_INPUT_PULLUP,
83 GPIO198_MC4_DAT2 | PIN_INPUT_PULLUP,
84 GPIO199_MC4_DAT1 | PIN_INPUT_PULLUP,
85 GPIO200_MC4_DAT0 | PIN_INPUT_PULLUP,
86 GPIO201_MC4_CMD | PIN_INPUT_PULLUP,
87 GPIO202_MC4_FBCLK | PIN_INPUT_NOPULL,
88 GPIO203_MC4_CLK | PIN_OUTPUT_LOW,
89 GPIO204_MC4_DAT7 | PIN_INPUT_PULLUP,
90 GPIO205_MC4_DAT6 | PIN_INPUT_PULLUP,
91 GPIO206_MC4_DAT5 | PIN_INPUT_PULLUP,
92 GPIO207_MC4_DAT4 | PIN_INPUT_PULLUP,
95 GPIO29_U2_RXD | PIN_INPUT_PULLUP,
96 GPIO30_U2_TXD | PIN_OUTPUT_HIGH,
97 GPIO31_U2_CTSn | PIN_INPUT_PULLUP,
98 GPIO32_U2_RTSn | PIN_OUTPUT_HIGH,
101 * USB, pin 256-267 USB, Is probably already setup correctly from
102 * BootROM/boot stages, but we don't trust that and set it up anyway
118 unsigned long gpio_cfg_snowball[] = {
119 /* MMC0 (MicroSD card) */
120 GPIO217_GPIO | PIN_OUTPUT_HIGH, /* MMC_EN */
121 GPIO218_GPIO | PIN_INPUT_NOPULL, /* MMC_CD */
122 GPIO228_GPIO | PIN_OUTPUT_HIGH, /* SD_SEL */
125 GPIO167_GPIO | PIN_OUTPUT_HIGH, /* RSTn_MLC */
138 GPIO141_GPIO | PIN_OUTPUT_HIGH,
142 * Miscellaneous platform dependent initialisations
148 * Setup board (bd) and board-info (bi).
149 * bi_arch_number: Unique id for this board. It will passed in r1 to
150 * Linux startup code and is the machine_id.
151 * bi_boot_params: Where this board expects params.
153 gd->bd->bi_arch_number = MACH_TYPE_SNOWBALL;
154 gd->bd->bi_boot_params = 0x00000100;
156 /* Configure GPIO pins needed by U-boot */
157 db8500_gpio_config_pins(gpio_cfg_common, ARRAY_SIZE(gpio_cfg_common));
159 db8500_gpio_config_pins(gpio_cfg_snowball,
160 ARRAY_SIZE(gpio_cfg_snowball));
167 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
168 gd->ram_size = gd->bd->bi_dram[0].size =
169 get_ram_size(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MAX_RAM_SIZE);
174 static int raise_ab8500_gpio16(void)
179 ret = ab8500_read(AB8500_MISC, AB8500_GPIO_SEL2_REG);
184 ret = ab8500_write(AB8500_MISC, AB8500_GPIO_SEL2_REG, ret);
189 ret = ab8500_read(AB8500_MISC, AB8500_GPIO_DIR2_REG);
194 ret = ab8500_write(AB8500_MISC, AB8500_GPIO_DIR2_REG, ret);
199 ret = ab8500_read(AB8500_MISC, AB8500_GPIO_OUT2_REG);
204 ret = ab8500_write(AB8500_MISC, AB8500_GPIO_OUT2_REG, ret);
210 static int raise_ab8500_gpio26(void)
215 ret = ab8500_read(AB8500_MISC, AB8500_GPIO_DIR4_REG);
220 ret = ab8500_write(AB8500_MISC, AB8500_GPIO_DIR4_REG, ret);
225 ret = ab8500_read(AB8500_MISC, AB8500_GPIO_OUT4_REG);
230 ret = ab8500_write(AB8500_MISC, AB8500_GPIO_OUT4_REG, ret);
236 int board_late_init(void)
238 /* enable 3V3 for LAN controller */
239 if (raise_ab8500_gpio26() >= 0) {
240 /* Turn on FSMC device */
241 writel(0x1, 0x8000f000);
242 writel(0x1, 0x8000f008);
244 /* setup FSMC for LAN controler */
245 writel(0x305b, 0x80000000);
247 /* run at the highest possible speed */
248 writel(0x01010210, 0x80000004);
250 printf("error: can't raise GPIO26\n");
252 /* enable 3v6 for GBF chip */
253 if ((raise_ab8500_gpio16() < 0))
254 printf("error: cant' raise GPIO16\n");
256 /* empty UART RX FIFO */
265 * emmc_host_init - initialize the emmc controller.
266 * Configure GPIO settings, set initial clock and power for emmc slot.
267 * Initialize mmc struct and register with mmc framework.
269 static int emmc_host_init(void)
271 struct pl180_mmc_host *host;
273 host = malloc(sizeof(struct pl180_mmc_host));
276 memset(host, 0, sizeof(*host));
278 host->base = (struct sdi_registers *)CFG_EMMC_BASE;
279 host->pwr_init = SDI_PWR_OPD | SDI_PWR_PWRCTRL_ON;
280 host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V2 |
281 SDI_CLKCR_CLKEN | SDI_CLKCR_HWFC_EN;
282 strcpy(host->name, "EMMC");
283 host->caps = MMC_MODE_8BIT | MMC_MODE_HS | MMC_MODE_HS_52MHz;
284 host->voltages = VOLTAGE_WINDOW_MMC;
285 host->clock_min = ARM_MCLK / (2 + SDI_CLKCR_CLKDIV_INIT_V2);
286 host->clock_max = ARM_MCLK / 2;
287 host->clock_in = ARM_MCLK;
290 return arm_pl180_mmci_init(host);
294 * mmc_host_init - initialize the external mmc controller.
295 * Configure GPIO settings, set initial clock and power for mmc slot.
296 * Initialize mmc struct and register with mmc framework.
298 static int mmc_host_init(void)
300 struct pl180_mmc_host *host;
303 host = malloc(sizeof(struct pl180_mmc_host));
306 memset(host, 0, sizeof(*host));
308 host->base = (struct sdi_registers *)CFG_MMC_BASE;
310 writel(sdi_u32, &host->base->power);
311 host->pwr_init = 0xBF;
312 host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V2 |
313 SDI_CLKCR_CLKEN | SDI_CLKCR_HWFC_EN;
314 strcpy(host->name, "MMC");
315 host->caps = MMC_MODE_8BIT;
317 host->voltages = VOLTAGE_WINDOW_SD;
318 host->clock_min = ARM_MCLK / (2 + SDI_CLKCR_CLKDIV_INIT_V2);
319 host->clock_max = ARM_MCLK / 2;
320 host->clock_in = ARM_MCLK;
323 return arm_pl180_mmci_init(host);
327 * board_mmc_init - initialize all the mmc/sd host controllers.
328 * Called by generic mmc framework.
330 int board_mmc_init(bd_t *bis)
336 error = emmc_host_init();
338 printf("emmc_host_init() %d\n", error);
342 u8500_mmc_power_init();
344 error = mmc_host_init();
346 printf("mmc_host_init() %d\n", error);
352 #endif /* CONFIG_MMC */