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authorPeter Howard <pjh@northern-ridge.com.au>2015-03-23 09:19:56 +1100
committerTom Rini <trini@konsulko.com>2015-04-23 13:58:43 -0400
commita868e44333ebac080dd6ed81e5ae580691f7fd18 (patch)
tree45fe0d51becee467aab1d4e89b084857dff5d333 /board/davinci/da8xxevm
parenta8eeaf2f7a9c3326cba5b1780b1a38f70c6c1f37 (diff)
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davinci: add support for omapl138-lcdk board
Signed-off-by: Peter Howard <phoward@gme.net.au> [trini: Add config file, update for ..._ether_addr() -> ..._ethaddr() rename] Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'board/davinci/da8xxevm')
-rw-r--r--board/davinci/da8xxevm/Kconfig13
-rw-r--r--board/davinci/da8xxevm/MAINTAINERS6
-rw-r--r--board/davinci/da8xxevm/Makefile1
-rw-r--r--board/davinci/da8xxevm/README.omapl138-lcdk28
-rw-r--r--board/davinci/da8xxevm/omapl138_lcdk.c383
5 files changed, 431 insertions, 0 deletions
diff --git a/board/davinci/da8xxevm/Kconfig b/board/davinci/da8xxevm/Kconfig
index 1108e4b..33bfcc3 100644
--- a/board/davinci/da8xxevm/Kconfig
+++ b/board/davinci/da8xxevm/Kconfig
@@ -23,3 +23,16 @@ config SYS_CONFIG_NAME
default "da850evm"
endif
+
+if TARGET_OMAPL138_LCDK
+
+config SYS_BOARD
+ default "da8xxevm"
+
+config SYS_VENDOR
+ default "davinci"
+
+config SYS_CONFIG_NAME
+ default "omapl138_lcdk"
+
+endif
diff --git a/board/davinci/da8xxevm/MAINTAINERS b/board/davinci/da8xxevm/MAINTAINERS
index 10c4e2f..f32ce66 100644
--- a/board/davinci/da8xxevm/MAINTAINERS
+++ b/board/davinci/da8xxevm/MAINTAINERS
@@ -12,3 +12,9 @@ F: include/configs/da850evm.h
F: configs/da850_am18xxevm_defconfig
F: configs/da850evm_defconfig
F: configs/da850evm_direct_nor_defconfig
+
+OMAPL138_LCDK BOARD
+M: Peter Howard <phoward@gme.net.au>
+S: Maintained
+F: include/configs/omap1l38_lcdk.h
+F: configs/omapl138_lcdk_defconfig
diff --git a/board/davinci/da8xxevm/Makefile b/board/davinci/da8xxevm/Makefile
index 4da509b..93e1f1d 100644
--- a/board/davinci/da8xxevm/Makefile
+++ b/board/davinci/da8xxevm/Makefile
@@ -9,3 +9,4 @@
obj-$(CONFIG_MACH_DAVINCI_DA830_EVM) += da830evm.o
obj-$(CONFIG_MACH_DAVINCI_DA850_EVM) += da850evm.o
+obj-$(CONFIG_MACH_OMAPL138_LCDK) += omapl138_lcdk.o
diff --git a/board/davinci/da8xxevm/README.omapl138-lcdk b/board/davinci/da8xxevm/README.omapl138-lcdk
new file mode 100644
index 0000000..ea0c53d
--- /dev/null
+++ b/board/davinci/da8xxevm/README.omapl138-lcdk
@@ -0,0 +1,28 @@
+Summary
+=======
+This README assumes you have read README.da850. It contains some additional
+information specific to building the omapl138-lcdk. The AIS file as generated
+by the build is, currently, not useable due to differences in the flash
+available on this board, as compared to the da850evm boards.
+
+Flash Differences
+=================
+Refer to the discussion in [1] for more detail - basically the da850evm uses
+SPI flash whereas the lcdk uses NAND flash to store the bootloader, and
+the support isn't there in the SPL code.
+
+It should be possible to add the support in the SPL code should someone be
+sufficiently motivated.
+
+Using the built image
+=====================
+The output image to use is u-boot.bin. This needs to be converted to an
+AIS file as described in [1] and then flashed using the utitilty linked to
+there and also described in README.da850. You _may_ be able to write using
+u-boot itself, but the commands in README.da850 won't work as they write to
+SPI rather than NAND.
+
+Links
+=====
+[1]
+ http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/386829 \ No newline at end of file
diff --git a/board/davinci/da8xxevm/omapl138_lcdk.c b/board/davinci/da8xxevm/omapl138_lcdk.c
new file mode 100644
index 0000000..bef2570
--- /dev/null
+++ b/board/davinci/da8xxevm/omapl138_lcdk.c
@@ -0,0 +1,383 @@
+/*
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Based on da850evm.c. Original Copyrights follow:
+ *
+ * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
+ * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <net.h>
+#include <netdev.h>
+#include <spi.h>
+#include <spi_flash.h>
+#include <asm/arch/hardware.h>
+#include <asm/ti-common/davinci_nand.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/davinci_misc.h>
+#ifdef CONFIG_DAVINCI_MMC
+#include <mmc.h>
+#include <asm/arch/sdmmc_defs.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define pinmux(x) (&davinci_syscfg_regs->pinmux[x])
+
+#ifdef CONFIG_DAVINCI_MMC
+/* MMC0 pin muxer settings */
+const struct pinmux_config mmc0_pins[] = {
+ /* GP0[11] is required for SD to work on Rev 3 EVMs */
+ { pinmux(0), 8, 4 }, /* GP0[11] */
+ { pinmux(10), 2, 0 }, /* MMCSD0_CLK */
+ { pinmux(10), 2, 1 }, /* MMCSD0_CMD */
+ { pinmux(10), 2, 2 }, /* MMCSD0_DAT_0 */
+ { pinmux(10), 2, 3 }, /* MMCSD0_DAT_1 */
+ { pinmux(10), 2, 4 }, /* MMCSD0_DAT_2 */
+ { pinmux(10), 2, 5 }, /* MMCSD0_DAT_3 */
+ /* LCDK supports only 4-bit mode, remaining pins are not configured */
+};
+#endif
+
+/* UART pin muxer settings */
+static const struct pinmux_config uart_pins[] = {
+ { pinmux(0), 4, 6 },
+ { pinmux(0), 4, 7 },
+ { pinmux(4), 2, 4 },
+ { pinmux(4), 2, 5 }
+};
+
+#ifdef CONFIG_DRIVER_TI_EMAC
+static const struct pinmux_config emac_pins[] = {
+ { pinmux(2), 8, 1 },
+ { pinmux(2), 8, 2 },
+ { pinmux(2), 8, 3 },
+ { pinmux(2), 8, 4 },
+ { pinmux(2), 8, 5 },
+ { pinmux(2), 8, 6 },
+ { pinmux(2), 8, 7 },
+ { pinmux(3), 8, 0 },
+ { pinmux(3), 8, 1 },
+ { pinmux(3), 8, 2 },
+ { pinmux(3), 8, 3 },
+ { pinmux(3), 8, 4 },
+ { pinmux(3), 8, 5 },
+ { pinmux(3), 8, 6 },
+ { pinmux(3), 8, 7 },
+ { pinmux(4), 8, 0 },
+ { pinmux(4), 8, 1 }
+};
+#endif /* CONFIG_DRIVER_TI_EMAC */
+
+/* I2C pin muxer settings */
+static const struct pinmux_config i2c_pins[] = {
+ { pinmux(4), 2, 2 },
+ { pinmux(4), 2, 3 }
+};
+
+#ifdef CONFIG_NAND_DAVINCI
+const struct pinmux_config nand_pins[] = {
+ { pinmux(7), 1, 1 },
+ { pinmux(7), 1, 2 },
+ { pinmux(7), 1, 4 },
+ { pinmux(7), 1, 5 },
+ { pinmux(8), 1, 0 },
+ { pinmux(8), 1, 1 },
+ { pinmux(8), 1, 2 },
+ { pinmux(8), 1, 3 },
+ { pinmux(8), 1, 4 },
+ { pinmux(8), 1, 5 },
+ { pinmux(8), 1, 6 },
+ { pinmux(8), 1, 7 },
+ { pinmux(9), 1, 0 },
+ { pinmux(9), 1, 1 },
+ { pinmux(9), 1, 2 },
+ { pinmux(9), 1, 3 },
+ { pinmux(9), 1, 4 },
+ { pinmux(9), 1, 5 },
+ { pinmux(9), 1, 6 },
+ { pinmux(9), 1, 7 },
+ { pinmux(12), 1, 5 },
+ { pinmux(12), 1, 6 }
+};
+
+#endif
+
+#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
+#define HAS_RMII 1
+#else
+#define HAS_RMII 0
+#endif
+
+const struct pinmux_resource pinmuxes[] = {
+ PINMUX_ITEM(uart_pins),
+ PINMUX_ITEM(i2c_pins),
+#ifdef CONFIG_NAND_DAVINCI
+ PINMUX_ITEM(nand_pins),
+#endif
+};
+
+const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
+
+const struct lpsc_resource lpsc[] = {
+ { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
+ { DAVINCI_LPSC_SPI1 }, /* Serial Flash */
+ { DAVINCI_LPSC_EMAC }, /* image download */
+ { DAVINCI_LPSC_UART2 }, /* console */
+ { DAVINCI_LPSC_GPIO },
+#ifdef CONFIG_DAVINCI_MMC
+ { DAVINCI_LPSC_MMC_SD },
+#endif
+};
+
+const int lpsc_size = ARRAY_SIZE(lpsc);
+
+#ifndef CONFIG_DA850_EVM_MAX_CPU_CLK
+#define CONFIG_DA850_EVM_MAX_CPU_CLK 456000000
+#endif
+
+/*
+ * get_board_rev() - setup to pass kernel board revision information
+ * Returns:
+ * bit[0-3] Maximum cpu clock rate supported by onboard SoC
+ * 0000b - 300 MHz
+ * 0001b - 372 MHz
+ * 0010b - 408 MHz
+ * 0011b - 456 MHz
+ */
+u32 get_board_rev(void)
+{
+ return 0;
+}
+
+int board_early_init_f(void)
+{
+ /*
+ * Power on required peripherals
+ * ARM does not have access by default to PSC0 and PSC1
+ * assuming here that the DSP bootloader has set the IOPU
+ * such that PSC access is available to ARM
+ */
+ if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
+ return 1;
+
+ return 0;
+}
+
+int board_init(void)
+{
+#ifndef CONFIG_USE_IRQ
+ irq_init();
+#endif
+
+ /* arch number of the board */
+ gd->bd->bi_arch_number = MACH_TYPE_OMAPL138_LCDK;
+
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
+
+
+ /* setup the SUSPSRC for ARM to control emulation suspend */
+ writel(readl(&davinci_syscfg_regs->suspsrc) &
+ ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
+ DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
+ DAVINCI_SYSCFG_SUSPSRC_UART2),
+ &davinci_syscfg_regs->suspsrc);
+
+ /* configure pinmux settings */
+ if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
+ return 1;
+
+#ifdef CONFIG_NAND_DAVINCI
+ /*
+ * NAND CS setup - cycle counts based on da850evm NAND timings in the
+ * Linux kernel @ 25MHz EMIFA
+ */
+ writel((DAVINCI_ABCR_WSETUP(15) |
+ DAVINCI_ABCR_WSTROBE(63) |
+ DAVINCI_ABCR_WHOLD(7) |
+ DAVINCI_ABCR_RSETUP(15) |
+ DAVINCI_ABCR_RSTROBE(63) |
+ DAVINCI_ABCR_RHOLD(7) |
+ DAVINCI_ABCR_TA(3) |
+ DAVINCI_ABCR_ASIZE_16BIT),
+ &davinci_emif_regs->ab2cr); /* CS3 */
+#endif
+
+
+#ifdef CONFIG_DAVINCI_MMC
+ if (davinci_configure_pin_mux(mmc0_pins, ARRAY_SIZE(mmc0_pins)) != 0)
+ return 1;
+#endif
+
+#ifdef CONFIG_DRIVER_TI_EMAC
+ if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0)
+ return 1;
+ davinci_emac_mii_mode_sel(HAS_RMII);
+#endif /* CONFIG_DRIVER_TI_EMAC */
+
+ /* enable the console UART */
+ writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
+ DAVINCI_UART_PWREMU_MGMT_UTRST),
+ &davinci_uart2_ctrl_regs->pwremu_mgmt);
+
+ return 0;
+}
+
+#ifdef CONFIG_DRIVER_TI_EMAC
+
+/*
+ * Initializes on-board ethernet controllers.
+ */
+int board_eth_init(bd_t *bis)
+{
+ if (!davinci_emac_initialize()) {
+ printf("Error: Ethernet init failed!\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+#endif /* CONFIG_DRIVER_TI_EMAC */
+
+#define CFG_MAC_ADDR_SPI_BUS 0
+#define CFG_MAC_ADDR_SPI_CS 0
+#define CFG_MAC_ADDR_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED
+#define CFG_MAC_ADDR_SPI_MODE SPI_MODE_3
+
+#define CFG_MAC_ADDR_OFFSET (flash->size - SZ_64K)
+
+static int get_mac_addr(u8 *addr)
+{
+ /* Need to find a way to get MAC ADDRESS */
+ return 0;
+}
+
+void dsp_lpsc_on(unsigned domain, unsigned int id)
+{
+ dv_reg_p mdstat, mdctl, ptstat, ptcmd;
+ struct davinci_psc_regs *psc_regs;
+
+ psc_regs = davinci_psc0_regs;
+ mdstat = &psc_regs->psc0.mdstat[id];
+ mdctl = &psc_regs->psc0.mdctl[id];
+ ptstat = &psc_regs->ptstat;
+ ptcmd = &psc_regs->ptcmd;
+
+ while (*ptstat & (0x1 << domain))
+ ;
+
+ if ((*mdstat & 0x1f) == 0x03)
+ return; /* Already on and enabled */
+
+ *mdctl |= 0x03;
+
+ *ptcmd = 0x1 << domain;
+
+ while (*ptstat & (0x1 << domain))
+ ;
+ while ((*mdstat & 0x1f) != 0x03)
+ ; /* Probably an overkill... */
+}
+
+static void dspwake(void)
+{
+ unsigned *resetvect = (unsigned *)DAVINCI_L3CBARAM_BASE;
+
+ /* if the device is ARM only, return */
+ if ((REG(CHIP_REV_ID_REG) & 0x3f) == 0x10)
+ return;
+
+ if (!strcmp(getenv("dspwake"), "no"))
+ return;
+
+ *resetvect++ = 0x1E000; /* DSP Idle */
+ /* clear out the next 10 words as NOP */
+ memset(resetvect, 0, sizeof(unsigned) * 10);
+
+ /* setup the DSP reset vector */
+ REG(HOST1CFG) = DAVINCI_L3CBARAM_BASE;
+
+ dsp_lpsc_on(1, DAVINCI_LPSC_GEM);
+ REG(PSC0_MDCTL + (15 * 4)) |= 0x100;
+}
+
+#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
+/**
+ * rmii_hw_init
+ *
+ */
+int rmii_hw_init(void)
+{
+ return 0;
+}
+#endif /* CONFIG_DRIVER_TI_EMAC_USE_RMII */
+
+int misc_init_r(void)
+{
+ uint8_t tmp[20], addr[10];
+
+
+ if (getenv("ethaddr") == NULL) {
+ /* Read Ethernet MAC address from EEPROM */
+ if (dvevm_read_mac_address(addr)) {
+ /* Set Ethernet MAC address from EEPROM */
+ davinci_sync_env_enetaddr(addr);
+ } else {
+ get_mac_addr(addr);
+ }
+
+ if (is_multicast_ethaddr(addr) || is_zero_ethaddr(addr)) {
+ printf("Invalid MAC address read.\n");
+ return -EINVAL;
+ }
+ sprintf((char *)tmp, "%02x:%02x:%02x:%02x:%02x:%02x", addr[0],
+ addr[1], addr[2], addr[3], addr[4], addr[5]);
+
+ setenv("ethaddr", (char *)tmp);
+ }
+#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
+ /* Select RMII fucntion through the expander */
+ if (rmii_hw_init())
+ printf("RMII hardware init failed!!!\n");
+#endif
+
+ dspwake();
+
+ return 0;
+}
+
+#ifdef CONFIG_DAVINCI_MMC
+static struct davinci_mmc mmc_sd0 = {
+ .reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
+ .host_caps = MMC_MODE_4BIT, /* DA850 supports only 4-bit SD/MMC */
+ .voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
+ .version = MMC_CTLR_VERSION_2,
+};
+
+int board_mmc_init(bd_t *bis)
+{
+ mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID);
+
+ /* Add slot-0 to mmc subsystem */
+ return davinci_mmc_init(bis, &mmc_sd0);
+}
+#endif