Add initial support for Freescale mx51evk board
The patch adds initial support for the Freescale mx51evk board.
Network (FEC) and SD controller (fsl_esdhc) are supported.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Signed-off-by: Fred Fan <fanyefeng@gmail.com>
diff --git a/board/freescale/mx51evk/mx51evk.c b/board/freescale/mx51evk/mx51evk.c
new file mode 100644
index 0000000..df0e8ed
--- /dev/null
+++ b/board/freescale/mx51evk/mx51evk.c
@@ -0,0 +1,406 @@
+/*
+ * (C) Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/mx51_pins.h>
+#include <asm/arch/iomux.h>
+#include <asm/errno.h>
+#include <i2c.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include "mx51evk.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static u32 system_rev;
+struct io_board_ctrl *mx51_io_board;
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg esdhc_cfg[2] = {
+ {MMC_SDHC1_BASE_ADDR, 1, 1},
+ {MMC_SDHC2_BASE_ADDR, 1, 1},
+};
+#endif
+
+u32 get_board_rev(void)
+{
+ return system_rev;
+}
+
+static inline void set_board_rev(int rev)
+{
+ system_rev |= (rev & 0xF) << 8;
+}
+
+inline int is_soc_rev(int rev)
+{
+ return (system_rev & 0xFF) - rev;
+}
+
+int dram_init(void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+ gd->bd->bi_dram[0].size = get_ram_size((long *)PHYS_SDRAM_1,
+ PHYS_SDRAM_1_SIZE);
+ return 0;
+}
+
+static void setup_iomux_uart(void)
+{
+ unsigned int pad = PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
+ PAD_CTL_PUE_PULL | PAD_CTL_DRV_HIGH;
+
+ mxc_request_iomux(MX51_PIN_UART1_RXD, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_UART1_RXD, pad | PAD_CTL_SRE_FAST);
+ mxc_request_iomux(MX51_PIN_UART1_TXD, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_UART1_TXD, pad | PAD_CTL_SRE_FAST);
+ mxc_request_iomux(MX51_PIN_UART1_RTS, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_UART1_RTS, pad);
+ mxc_request_iomux(MX51_PIN_UART1_CTS, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_UART1_CTS, pad);
+}
+
+static void setup_expio(void)
+{
+ u32 reg;
+ struct weim *pweim = (struct weim *)WEIM_BASE_ADDR;
+ struct clkctl *pclkctl = (struct clkctl *)CCM_BASE_ADDR;
+
+ /* CS5 setup */
+ mxc_request_iomux(MX51_PIN_EIM_CS5, IOMUX_CONFIG_ALT0);
+ writel(0x00410089, &pweim[5].csgcr1);
+ writel(0x00000002, &pweim[5].csgcr2);
+
+ /* RWSC=50, RADVA=2, RADVN=6, OEA=0, OEN=0, RCSA=0, RCSN=0 */
+ writel(0x32260000, &pweim[5].csrcr1);
+
+ /* APR = 0 */
+ writel(0x00000000, &pweim[5].csrcr2);
+
+ /*
+ * WAL=0, WBED=1, WWSC=50, WADVA=2, WADVN=6, WEA=0, WEN=0,
+ * WCSA=0, WCSN=0
+ */
+ writel(0x72080F00, &pweim[5].cswcr1);
+
+ mx51_io_board = (struct io_board_ctrl *)(CS5_BASE_ADDR +
+ IO_BOARD_OFFSET);
+ if ((readw(&mx51_io_board->id1) == 0xAAAA) &&
+ (readw(&mx51_io_board->id2) == 0x5555)) {
+ if (is_soc_rev(CHIP_REV_2_0) < 0) {
+ reg = readl(&pclkctl->cbcdr);
+ reg = (reg & (~0x70000)) | 0x30000;
+ writel(reg, &pclkctl->cbcdr);
+ /* make sure divider effective */
+ while (readl(&pclkctl->cdhipr) != 0)
+ ;
+ writel(0x0, &pclkctl->ccdr);
+ }
+ } else {
+ /* CS1 */
+ writel(0x00410089, &pweim[1].csgcr1);
+ writel(0x00000002, &pweim[1].csgcr2);
+ /* RWSC=50, RADVA=2, RADVN=6, OEA=0, OEN=0, RCSA=0, RCSN=0 */
+ writel(0x32260000, &pweim[1].csrcr1);
+ /* APR=0 */
+ writel(0x00000000, &pweim[1].csrcr2);
+ /*
+ * WAL=0, WBED=1, WWSC=50, WADVA=2, WADVN=6, WEA=0,
+ * WEN=0, WCSA=0, WCSN=0
+ */
+ writel(0x72080F00, &pweim[1].cswcr1);
+ mx51_io_board = (struct io_board_ctrl *)(CS1_BASE_ADDR +
+ IO_BOARD_OFFSET);
+ }
+
+ /* Reset interrupt status reg */
+ writew(0x1F, &(mx51_io_board->int_rest));
+ writew(0x00, &(mx51_io_board->int_rest));
+ writew(0xFFFF, &(mx51_io_board->int_mask));
+
+ /* Reset the XUART and Ethernet controllers */
+ reg = readw(&(mx51_io_board->sw_reset));
+ reg |= 0x9;
+ writew(reg, &(mx51_io_board->sw_reset));
+ reg &= ~0x9;
+ writew(reg, &(mx51_io_board->sw_reset));
+}
+
+static void setup_iomux_fec(void)
+{
+ /*FEC_MDIO*/
+ mxc_request_iomux(MX51_PIN_EIM_EB2 , IOMUX_CONFIG_ALT3);
+ mxc_iomux_set_pad(MX51_PIN_EIM_EB2 , 0x1FD);
+
+ /*FEC_MDC*/
+ mxc_request_iomux(MX51_PIN_NANDF_CS3, IOMUX_CONFIG_ALT2);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_CS3, 0x2004);
+
+ /* FEC RDATA[3] */
+ mxc_request_iomux(MX51_PIN_EIM_CS3, IOMUX_CONFIG_ALT3);
+ mxc_iomux_set_pad(MX51_PIN_EIM_CS3, 0x180);
+
+ /* FEC RDATA[2] */
+ mxc_request_iomux(MX51_PIN_EIM_CS2, IOMUX_CONFIG_ALT3);
+ mxc_iomux_set_pad(MX51_PIN_EIM_CS2, 0x180);
+
+ /* FEC RDATA[1] */
+ mxc_request_iomux(MX51_PIN_EIM_EB3, IOMUX_CONFIG_ALT3);
+ mxc_iomux_set_pad(MX51_PIN_EIM_EB3, 0x180);
+
+ /* FEC RDATA[0] */
+ mxc_request_iomux(MX51_PIN_NANDF_D9, IOMUX_CONFIG_ALT2);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_D9, 0x2180);
+
+ /* FEC TDATA[3] */
+ mxc_request_iomux(MX51_PIN_NANDF_CS6, IOMUX_CONFIG_ALT2);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_CS6, 0x2004);
+
+ /* FEC TDATA[2] */
+ mxc_request_iomux(MX51_PIN_NANDF_CS5, IOMUX_CONFIG_ALT2);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_CS5, 0x2004);
+
+ /* FEC TDATA[1] */
+ mxc_request_iomux(MX51_PIN_NANDF_CS4, IOMUX_CONFIG_ALT2);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_CS4, 0x2004);
+
+ /* FEC TDATA[0] */
+ mxc_request_iomux(MX51_PIN_NANDF_D8, IOMUX_CONFIG_ALT2);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_D8, 0x2004);
+
+ /* FEC TX_EN */
+ mxc_request_iomux(MX51_PIN_NANDF_CS7, IOMUX_CONFIG_ALT1);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_CS7, 0x2004);
+
+ /* FEC TX_ER */
+ mxc_request_iomux(MX51_PIN_NANDF_CS2, IOMUX_CONFIG_ALT2);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_CS2, 0x2004);
+
+ /* FEC TX_CLK */
+ mxc_request_iomux(MX51_PIN_NANDF_RDY_INT, IOMUX_CONFIG_ALT1);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_RDY_INT, 0x2180);
+
+ /* FEC TX_COL */
+ mxc_request_iomux(MX51_PIN_NANDF_RB2, IOMUX_CONFIG_ALT1);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_RB2, 0x2180);
+
+ /* FEC RX_CLK */
+ mxc_request_iomux(MX51_PIN_NANDF_RB3, IOMUX_CONFIG_ALT1);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_RB3, 0x2180);
+
+ /* FEC RX_CRS */
+ mxc_request_iomux(MX51_PIN_EIM_CS5, IOMUX_CONFIG_ALT3);
+ mxc_iomux_set_pad(MX51_PIN_EIM_CS5, 0x180);
+
+ /* FEC RX_ER */
+ mxc_request_iomux(MX51_PIN_EIM_CS4, IOMUX_CONFIG_ALT3);
+ mxc_iomux_set_pad(MX51_PIN_EIM_CS4, 0x180);
+
+ /* FEC RX_DV */
+ mxc_request_iomux(MX51_PIN_NANDF_D11, IOMUX_CONFIG_ALT2);
+ mxc_iomux_set_pad(MX51_PIN_NANDF_D11, 0x2180);
+}
+
+#ifdef CONFIG_FSL_ESDHC
+int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+
+ if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
+ *cd = readl(GPIO1_BASE_ADDR) & 0x01;
+ else
+ *cd = readl(GPIO1_BASE_ADDR) & 0x40;
+
+ return 0;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ u32 index;
+ s32 status = 0;
+
+ for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM;
+ index++) {
+ switch (index) {
+ case 0:
+ mxc_request_iomux(MX51_PIN_SD1_CMD,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_request_iomux(MX51_PIN_SD1_CLK,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_request_iomux(MX51_PIN_SD1_DATA0,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_request_iomux(MX51_PIN_SD1_DATA1,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_request_iomux(MX51_PIN_SD1_DATA2,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_request_iomux(MX51_PIN_SD1_DATA3,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_iomux_set_pad(MX51_PIN_SD1_CMD,
+ PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
+ PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
+ PAD_CTL_PUE_PULL |
+ PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
+ mxc_iomux_set_pad(MX51_PIN_SD1_CLK,
+ PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
+ PAD_CTL_HYS_NONE | PAD_CTL_47K_PU |
+ PAD_CTL_PUE_PULL |
+ PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
+ mxc_iomux_set_pad(MX51_PIN_SD1_DATA0,
+ PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
+ PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
+ PAD_CTL_PUE_PULL |
+ PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
+ mxc_iomux_set_pad(MX51_PIN_SD1_DATA1,
+ PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
+ PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
+ PAD_CTL_PUE_PULL |
+ PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
+ mxc_iomux_set_pad(MX51_PIN_SD1_DATA2,
+ PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
+ PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
+ PAD_CTL_PUE_PULL |
+ PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
+ mxc_iomux_set_pad(MX51_PIN_SD1_DATA3,
+ PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
+ PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PD |
+ PAD_CTL_PUE_PULL |
+ PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
+ mxc_request_iomux(MX51_PIN_GPIO1_0,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_iomux_set_pad(MX51_PIN_GPIO1_0,
+ PAD_CTL_HYS_ENABLE);
+ mxc_request_iomux(MX51_PIN_GPIO1_1,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_iomux_set_pad(MX51_PIN_GPIO1_1,
+ PAD_CTL_HYS_ENABLE);
+ break;
+ case 1:
+ mxc_request_iomux(MX51_PIN_SD2_CMD,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_request_iomux(MX51_PIN_SD2_CLK,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_request_iomux(MX51_PIN_SD2_DATA0,
+ IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD2_DATA1,
+ IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD2_DATA2,
+ IOMUX_CONFIG_ALT0);
+ mxc_request_iomux(MX51_PIN_SD2_DATA3,
+ IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX51_PIN_SD2_CMD,
+ PAD_CTL_DRV_MAX | PAD_CTL_22K_PU |
+ PAD_CTL_SRE_FAST);
+ mxc_iomux_set_pad(MX51_PIN_SD2_CLK,
+ PAD_CTL_DRV_MAX | PAD_CTL_22K_PU |
+ PAD_CTL_SRE_FAST);
+ mxc_iomux_set_pad(MX51_PIN_SD2_DATA0,
+ PAD_CTL_DRV_MAX | PAD_CTL_22K_PU |
+ PAD_CTL_SRE_FAST);
+ mxc_iomux_set_pad(MX51_PIN_SD2_DATA1,
+ PAD_CTL_DRV_MAX | PAD_CTL_22K_PU |
+ PAD_CTL_SRE_FAST);
+ mxc_iomux_set_pad(MX51_PIN_SD2_DATA2,
+ PAD_CTL_DRV_MAX | PAD_CTL_22K_PU |
+ PAD_CTL_SRE_FAST);
+ mxc_iomux_set_pad(MX51_PIN_SD2_DATA3,
+ PAD_CTL_DRV_MAX | PAD_CTL_22K_PU |
+ PAD_CTL_SRE_FAST);
+ mxc_request_iomux(MX51_PIN_SD2_CMD,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_request_iomux(MX51_PIN_GPIO1_6,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_iomux_set_pad(MX51_PIN_GPIO1_6,
+ PAD_CTL_HYS_ENABLE);
+ mxc_request_iomux(MX51_PIN_GPIO1_5,
+ IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+ mxc_iomux_set_pad(MX51_PIN_GPIO1_5,
+ PAD_CTL_HYS_ENABLE);
+ break;
+ default:
+ printf("Warning: you configured more ESDHC controller"
+ "(%d) as supported by the board(2)\n",
+ CONFIG_SYS_FSL_ESDHC_NUM);
+ return status;
+ }
+ status |= fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
+ }
+ return status;
+}
+#endif
+
+int board_init(void)
+{
+ system_rev = get_cpu_rev();
+
+ gd->bd->bi_arch_number = MACH_TYPE_MX51_BABBAGE;
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+ setup_iomux_uart();
+ setup_expio();
+ setup_iomux_fec();
+ return 0;
+}
+
+int checkboard(void)
+{
+ puts("Board: MX51EVK ");
+
+ switch (system_rev & 0xff) {
+ case CHIP_REV_3_0:
+ puts("3.0 [");
+ break;
+ case CHIP_REV_2_5:
+ puts("2.5 [");
+ break;
+ case CHIP_REV_2_0:
+ puts("2.0 [");
+ break;
+ case CHIP_REV_1_1:
+ puts("1.1 [");
+ break;
+ case CHIP_REV_1_0:
+ default:
+ puts("1.0 [");
+ break;
+ }
+
+ switch (__raw_readl(SRC_BASE_ADDR + 0x8)) {
+ case 0x0001:
+ puts("POR");
+ break;
+ case 0x0009:
+ puts("RST");
+ break;
+ case 0x0010:
+ case 0x0011:
+ puts("WDOG");
+ break;
+ default:
+ puts("unknown");
+ }
+ puts("]\n");
+ return 0;
+}
+