diff options
author | Prafulla Wadaskar <prafulla@marvell.com> | 2010-10-12 16:31:40 +0530 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2010-12-16 23:02:36 +0100 |
commit | 6c08d5dcf845c798173b883d7cc3d453de1dbd7e (patch) | |
tree | f896806ae62e85d436a3d97fef470d45ca48797b /arch/arm/cpu/arm926ejs/armada100/cpu.c | |
parent | 006915fbb0e3c1c9927fe32c4e92cb011f8499e7 (diff) | |
download | u-boot-imx-6c08d5dcf845c798173b883d7cc3d453de1dbd7e.zip u-boot-imx-6c08d5dcf845c798173b883d7cc3d453de1dbd7e.tar.gz u-boot-imx-6c08d5dcf845c798173b883d7cc3d453de1dbd7e.tar.bz2 |
arm: Add Support for Marvell ARMADA 100 Familiy SoCs
ARMADA 100 Family processors are highly integrated SoCs
based on Sheeva_88SV331x-v5 PJ1 cpu core.
Ref: http://www.marvell.com/products/processors/applications/armada_100
SoC versions Supported:
1) ARMADA168/88AP168 (Aspen P)
2) ARMADA166/88AP166 (Aspen M)
3) ARMADA162/88AP162 (Aspen L)
Contributors:
Eric Miao <eric.y.miao@gmail.com>
Lei Wen <leiwen@marvell.com>
Mahavir Jain <mjain@marvell.com>
Signed-off-by: Mahavir Jain <mjain@marvell.com>
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Diffstat (limited to 'arch/arm/cpu/arm926ejs/armada100/cpu.c')
-rw-r--r-- | arch/arm/cpu/arm926ejs/armada100/cpu.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/armada100/cpu.c b/arch/arm/cpu/arm926ejs/armada100/cpu.c new file mode 100644 index 0000000..62aa175 --- /dev/null +++ b/arch/arm/cpu/arm926ejs/armada100/cpu.c @@ -0,0 +1,92 @@ +/* + * (C) Copyright 2010 + * Marvell Semiconductor <www.marvell.com> + * Written-by: Prafulla Wadaskar <prafulla@marvell.com> + * Contributor: Mahavir Jain <mjain@marvell.com> + * + * 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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <asm/arch/armada100.h> +#include <asm/io.h> + +#define UARTCLK14745KHZ (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(1)) +#define SET_MRVL_ID (1<<8) +#define L2C_RAM_SEL (1<<4) + +int arch_cpu_init(void) +{ + u32 val; + struct armd1cpu_registers *cpuregs = + (struct armd1cpu_registers *) ARMD1_CPU_BASE; + + struct armd1apb1_registers *apb1clkres = + (struct armd1apb1_registers *) ARMD1_APBC1_BASE; + + struct armd1mpmu_registers *mpmu = + (struct armd1mpmu_registers *) ARMD1_MPMU_BASE; + + /* set SEL_MRVL_ID bit in ARMADA100_CPU_CONF register */ + val = readl(&cpuregs->cpu_conf); + val = val | SET_MRVL_ID; + writel(val, &cpuregs->cpu_conf); + + /* Enable Clocks for all hardware units */ + writel(0xFFFFFFFF, &mpmu->acgr); + + /* Turn on AIB and AIB-APB Functional clock */ + writel(APBC_APBCLK | APBC_FNCLK, &apb1clkres->aib); + + /* ensure L2 cache is not mapped as SRAM */ + val = readl(&cpuregs->cpu_conf); + val = val & ~(L2C_RAM_SEL); + writel(val, &cpuregs->cpu_conf); + + /* Enable GPIO clock */ + writel(APBC_APBCLK, &apb1clkres->gpio); + + /* + * Enable Functional and APB clock at 14.7456MHz + * for configured UART console + */ +#if (CONFIG_SYS_NS16550_COM1 == ARMD1_UART3_BASE) + writel(UARTCLK14745KHZ, &apb1clkres->uart3); +#elif (CONFIG_SYS_NS16550_COM1 == ARMD1_UART2_BASE) + writel(UARTCLK14745KHZ, &apb1clkres->uart2); +#else + writel(UARTCLK14745KHZ, &apb1clkres->uart1); +#endif + icache_enable(); + + return 0; +} + +#if defined(CONFIG_DISPLAY_CPUINFO) +int print_cpuinfo(void) +{ + u32 id; + struct armd1cpu_registers *cpuregs = + (struct armd1cpu_registers *) ARMD1_CPU_BASE; + + id = readl(&cpuregs->chip_id); + printf("SoC: Armada 88AP%X-%X\n", (id & 0xFFF), (id >> 0x10)); + return 0; +} +#endif |