2010-04-01 18:31:01 +07:00
|
|
|
/*
|
|
|
|
* arch/arm/mach-spear6xx/spear6xx.c
|
|
|
|
*
|
|
|
|
* SPEAr6XX machines common source file
|
|
|
|
*
|
|
|
|
* Copyright (C) 2009 ST Microelectronics
|
|
|
|
* Rajeev Kumar<rajeev-dlh.kumar@st.com>
|
|
|
|
*
|
2012-03-16 20:03:23 +07:00
|
|
|
* Copyright 2012 Stefan Roese <sr@denx.de>
|
|
|
|
*
|
2010-04-01 18:31:01 +07:00
|
|
|
* This file is licensed under the terms of the GNU General Public
|
|
|
|
* License version 2. This program is licensed "as is" without any
|
|
|
|
* warranty of any kind, whether express or implied.
|
|
|
|
*/
|
|
|
|
|
2012-03-26 11:59:23 +07:00
|
|
|
#include <linux/amba/pl08x.h>
|
2012-04-12 00:30:11 +07:00
|
|
|
#include <linux/clk.h>
|
|
|
|
#include <linux/err.h>
|
2012-03-16 20:03:23 +07:00
|
|
|
#include <linux/of.h>
|
|
|
|
#include <linux/of_address.h>
|
|
|
|
#include <linux/of_platform.h>
|
2012-11-24 07:22:56 +07:00
|
|
|
#include <linux/amba/pl080.h>
|
2010-04-01 18:31:01 +07:00
|
|
|
#include <asm/mach/arch.h>
|
2012-04-12 00:30:11 +07:00
|
|
|
#include <asm/mach/time.h>
|
|
|
|
#include <asm/mach/map.h>
|
2012-12-02 21:49:04 +07:00
|
|
|
#include "pl080.h"
|
|
|
|
#include "generic.h"
|
2012-04-12 00:30:11 +07:00
|
|
|
#include <mach/spear.h>
|
2012-12-02 23:59:57 +07:00
|
|
|
#include <mach/misc_regs.h>
|
2010-04-01 18:31:01 +07:00
|
|
|
|
2012-03-26 11:59:23 +07:00
|
|
|
/* dmac device registration */
|
|
|
|
static struct pl08x_channel_data spear600_dma_info[] = {
|
|
|
|
{
|
|
|
|
.bus_id = "ssp1_rx",
|
|
|
|
.min_signal = 0,
|
|
|
|
.max_signal = 0,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ssp1_tx",
|
|
|
|
.min_signal = 1,
|
|
|
|
.max_signal = 1,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "uart0_rx",
|
|
|
|
.min_signal = 2,
|
|
|
|
.max_signal = 2,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "uart0_tx",
|
|
|
|
.min_signal = 3,
|
|
|
|
.max_signal = 3,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "uart1_rx",
|
|
|
|
.min_signal = 4,
|
|
|
|
.max_signal = 4,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "uart1_tx",
|
|
|
|
.min_signal = 5,
|
|
|
|
.max_signal = 5,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ssp2_rx",
|
|
|
|
.min_signal = 6,
|
|
|
|
.max_signal = 6,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ssp2_tx",
|
|
|
|
.min_signal = 7,
|
|
|
|
.max_signal = 7,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ssp0_rx",
|
|
|
|
.min_signal = 8,
|
|
|
|
.max_signal = 8,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ssp0_tx",
|
|
|
|
.min_signal = 9,
|
|
|
|
.max_signal = 9,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "i2c_rx",
|
|
|
|
.min_signal = 10,
|
|
|
|
.max_signal = 10,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "i2c_tx",
|
|
|
|
.min_signal = 11,
|
|
|
|
.max_signal = 11,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "irda",
|
|
|
|
.min_signal = 12,
|
|
|
|
.max_signal = 12,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "adc",
|
|
|
|
.min_signal = 13,
|
|
|
|
.max_signal = 13,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "to_jpeg",
|
|
|
|
.min_signal = 14,
|
|
|
|
.max_signal = 14,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "from_jpeg",
|
|
|
|
.min_signal = 15,
|
|
|
|
.max_signal = 15,
|
|
|
|
.muxval = 0,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras0_rx",
|
|
|
|
.min_signal = 0,
|
|
|
|
.max_signal = 0,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras0_tx",
|
|
|
|
.min_signal = 1,
|
|
|
|
.max_signal = 1,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras1_rx",
|
|
|
|
.min_signal = 2,
|
|
|
|
.max_signal = 2,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras1_tx",
|
|
|
|
.min_signal = 3,
|
|
|
|
.max_signal = 3,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras2_rx",
|
|
|
|
.min_signal = 4,
|
|
|
|
.max_signal = 4,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras2_tx",
|
|
|
|
.min_signal = 5,
|
|
|
|
.max_signal = 5,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras3_rx",
|
|
|
|
.min_signal = 6,
|
|
|
|
.max_signal = 6,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras3_tx",
|
|
|
|
.min_signal = 7,
|
|
|
|
.max_signal = 7,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras4_rx",
|
|
|
|
.min_signal = 8,
|
|
|
|
.max_signal = 8,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras4_tx",
|
|
|
|
.min_signal = 9,
|
|
|
|
.max_signal = 9,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras5_rx",
|
|
|
|
.min_signal = 10,
|
|
|
|
.max_signal = 10,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras5_tx",
|
|
|
|
.min_signal = 11,
|
|
|
|
.max_signal = 11,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras6_rx",
|
|
|
|
.min_signal = 12,
|
|
|
|
.max_signal = 12,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras6_tx",
|
|
|
|
.min_signal = 13,
|
|
|
|
.max_signal = 13,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras7_rx",
|
|
|
|
.min_signal = 14,
|
|
|
|
.max_signal = 14,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ras7_tx",
|
|
|
|
.min_signal = 15,
|
|
|
|
.max_signal = 15,
|
|
|
|
.muxval = 1,
|
|
|
|
.periph_buses = PL08X_AHB1,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext0_rx",
|
|
|
|
.min_signal = 0,
|
|
|
|
.max_signal = 0,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext0_tx",
|
|
|
|
.min_signal = 1,
|
|
|
|
.max_signal = 1,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext1_rx",
|
|
|
|
.min_signal = 2,
|
|
|
|
.max_signal = 2,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext1_tx",
|
|
|
|
.min_signal = 3,
|
|
|
|
.max_signal = 3,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext2_rx",
|
|
|
|
.min_signal = 4,
|
|
|
|
.max_signal = 4,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext2_tx",
|
|
|
|
.min_signal = 5,
|
|
|
|
.max_signal = 5,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext3_rx",
|
|
|
|
.min_signal = 6,
|
|
|
|
.max_signal = 6,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext3_tx",
|
|
|
|
.min_signal = 7,
|
|
|
|
.max_signal = 7,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext4_rx",
|
|
|
|
.min_signal = 8,
|
|
|
|
.max_signal = 8,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext4_tx",
|
|
|
|
.min_signal = 9,
|
|
|
|
.max_signal = 9,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext5_rx",
|
|
|
|
.min_signal = 10,
|
|
|
|
.max_signal = 10,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext5_tx",
|
|
|
|
.min_signal = 11,
|
|
|
|
.max_signal = 11,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext6_rx",
|
|
|
|
.min_signal = 12,
|
|
|
|
.max_signal = 12,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext6_tx",
|
|
|
|
.min_signal = 13,
|
|
|
|
.max_signal = 13,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext7_rx",
|
|
|
|
.min_signal = 14,
|
|
|
|
.max_signal = 14,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
}, {
|
|
|
|
.bus_id = "ext7_tx",
|
|
|
|
.min_signal = 15,
|
|
|
|
.max_signal = 15,
|
|
|
|
.muxval = 2,
|
|
|
|
.periph_buses = PL08X_AHB2,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2012-12-06 20:48:28 +07:00
|
|
|
static struct pl08x_platform_data spear6xx_pl080_plat_data = {
|
2017-05-21 04:42:50 +07:00
|
|
|
.memcpy_burst_size = PL08X_BURST_SZ_16,
|
|
|
|
.memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
|
|
|
|
.memcpy_prot_buff = true,
|
|
|
|
.memcpy_prot_cache = true,
|
2012-03-26 11:59:23 +07:00
|
|
|
.lli_buses = PL08X_AHB1,
|
|
|
|
.mem_buses = PL08X_AHB1,
|
2013-06-20 02:38:28 +07:00
|
|
|
.get_xfer_signal = pl080_get_signal,
|
|
|
|
.put_xfer_signal = pl080_put_signal,
|
2012-03-26 11:59:23 +07:00
|
|
|
.slave_channels = spear600_dma_info,
|
|
|
|
.num_slave_channels = ARRAY_SIZE(spear600_dma_info),
|
|
|
|
};
|
|
|
|
|
2012-04-12 00:30:11 +07:00
|
|
|
/*
|
|
|
|
* Following will create 16MB static virtual/physical mappings
|
|
|
|
* PHYSICAL VIRTUAL
|
|
|
|
* 0xF0000000 0xF0000000
|
|
|
|
* 0xF1000000 0xF1000000
|
|
|
|
* 0xD0000000 0xFD000000
|
|
|
|
* 0xFC000000 0xFC000000
|
|
|
|
*/
|
|
|
|
struct map_desc spear6xx_io_desc[] __initdata = {
|
2010-04-01 18:31:01 +07:00
|
|
|
{
|
2012-12-02 23:59:57 +07:00
|
|
|
.virtual = (unsigned long)VA_SPEAR6XX_ML_CPU_BASE,
|
2012-12-02 20:45:27 +07:00
|
|
|
.pfn = __phys_to_pfn(SPEAR_ICM3_ML1_2_BASE),
|
2012-04-12 00:30:11 +07:00
|
|
|
.length = 2 * SZ_16M,
|
2010-04-01 18:31:01 +07:00
|
|
|
.type = MT_DEVICE
|
2012-04-12 00:30:11 +07:00
|
|
|
}, {
|
2012-12-02 23:59:57 +07:00
|
|
|
.virtual = (unsigned long)VA_SPEAR_ICM1_2_BASE,
|
2012-12-02 20:45:27 +07:00
|
|
|
.pfn = __phys_to_pfn(SPEAR_ICM1_2_BASE),
|
2012-04-12 00:30:11 +07:00
|
|
|
.length = SZ_16M,
|
2010-04-01 18:31:01 +07:00
|
|
|
.type = MT_DEVICE
|
|
|
|
}, {
|
2012-12-02 23:59:57 +07:00
|
|
|
.virtual = (unsigned long)VA_SPEAR_ICM3_SMI_CTRL_BASE,
|
2012-12-02 20:45:27 +07:00
|
|
|
.pfn = __phys_to_pfn(SPEAR_ICM3_SMI_CTRL_BASE),
|
2012-04-12 00:30:11 +07:00
|
|
|
.length = SZ_16M,
|
2010-04-01 18:31:01 +07:00
|
|
|
.type = MT_DEVICE
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
/* This will create static memory mapping for selected devices */
|
|
|
|
void __init spear6xx_map_io(void)
|
|
|
|
{
|
|
|
|
iotable_init(spear6xx_io_desc, ARRAY_SIZE(spear6xx_io_desc));
|
|
|
|
}
|
2011-02-16 13:40:32 +07:00
|
|
|
|
2012-11-09 02:40:59 +07:00
|
|
|
void __init spear6xx_timer_init(void)
|
2011-02-16 13:40:32 +07:00
|
|
|
{
|
2012-07-10 18:42:46 +07:00
|
|
|
char pclk_name[] = "pll3_clk";
|
2011-02-16 13:40:32 +07:00
|
|
|
struct clk *gpt_clk, *pclk;
|
|
|
|
|
2012-12-02 23:59:57 +07:00
|
|
|
spear6xx_clk_init(MISC_BASE);
|
2012-04-10 10:32:35 +07:00
|
|
|
|
2011-02-16 13:40:32 +07:00
|
|
|
/* get the system timer clock */
|
|
|
|
gpt_clk = clk_get_sys("gpt0", NULL);
|
|
|
|
if (IS_ERR(gpt_clk)) {
|
|
|
|
pr_err("%s:couldn't get clk for gpt\n", __func__);
|
|
|
|
BUG();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get the suitable parent clock for timer*/
|
|
|
|
pclk = clk_get(NULL, pclk_name);
|
|
|
|
if (IS_ERR(pclk)) {
|
|
|
|
pr_err("%s:couldn't get %s as parent for gpt\n",
|
|
|
|
__func__, pclk_name);
|
|
|
|
BUG();
|
|
|
|
}
|
|
|
|
|
|
|
|
clk_set_parent(gpt_clk, pclk);
|
|
|
|
clk_put(gpt_clk);
|
|
|
|
clk_put(pclk);
|
|
|
|
|
2012-04-21 14:45:37 +07:00
|
|
|
spear_setup_of_timer();
|
2011-02-16 13:40:32 +07:00
|
|
|
}
|
|
|
|
|
2012-03-26 11:59:23 +07:00
|
|
|
/* Add auxdata to pass platform data */
|
|
|
|
struct of_dev_auxdata spear6xx_auxdata_lookup[] __initdata = {
|
2012-12-02 20:45:27 +07:00
|
|
|
OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL,
|
2012-12-06 20:48:28 +07:00
|
|
|
&spear6xx_pl080_plat_data),
|
2012-03-26 11:59:23 +07:00
|
|
|
{}
|
|
|
|
};
|
|
|
|
|
2012-03-16 20:03:23 +07:00
|
|
|
static void __init spear600_dt_init(void)
|
|
|
|
{
|
2016-06-01 13:53:05 +07:00
|
|
|
of_platform_default_populate(NULL, spear6xx_auxdata_lookup, NULL);
|
2012-03-16 20:03:23 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static const char *spear600_dt_board_compat[] = {
|
|
|
|
"st,spear600",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
DT_MACHINE_START(SPEAR600_DT, "ST SPEAr600 (Flattened Device Tree)")
|
|
|
|
.map_io = spear6xx_map_io,
|
2012-11-09 02:40:59 +07:00
|
|
|
.init_time = spear6xx_timer_init,
|
2012-03-16 20:03:23 +07:00
|
|
|
.init_machine = spear600_dt_init,
|
|
|
|
.restart = spear_restart,
|
|
|
|
.dt_compat = spear600_dt_board_compat,
|
|
|
|
MACHINE_END
|