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linux/arch/arm/mach-spear/spear6xx.c
Arnd Bergmann c164620ae2 ARM: spear: remove include/mach/ subdirectory 
Two of the remaining four headers are never used, the other
two are only used inside of the platform code. Move them
next to the files that include them and remove the
Makefile trick that adds the include path.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-04-29 09:53:15 +02:00

423 lines
8.6 KiB
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/*
* arch/arm/mach-spear6xx/spear6xx.c
*
* SPEAr6XX machines common source file
*
* Copyright (C) 2009 ST Microelectronics
* Rajeev Kumar<rajeev-dlh.kumar@st.com>
*
* Copyright 2012 Stefan Roese <sr@denx.de>
*
* 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.
*/
#include <linux/amba/pl08x.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/amba/pl080.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include "pl080.h"
#include "generic.h"
#include "spear.h"
#include "misc_regs.h"
/* 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,
},
};
static struct pl08x_platform_data spear6xx_pl080_plat_data = {
.memcpy_burst_size = PL08X_BURST_SZ_16,
.memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
.memcpy_prot_buff = true,
.memcpy_prot_cache = true,
.lli_buses = PL08X_AHB1,
.mem_buses = PL08X_AHB1,
.get_xfer_signal = pl080_get_signal,
.put_xfer_signal = pl080_put_signal,
.slave_channels = spear600_dma_info,
.num_slave_channels = ARRAY_SIZE(spear600_dma_info),
};
/*
* 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 = {
{
.virtual = (unsigned long)VA_SPEAR6XX_ML_CPU_BASE,
.pfn = __phys_to_pfn(SPEAR_ICM3_ML1_2_BASE),
.length = 2 * SZ_16M,
.type = MT_DEVICE
}, {
.virtual = (unsigned long)VA_SPEAR_ICM1_2_BASE,
.pfn = __phys_to_pfn(SPEAR_ICM1_2_BASE),
.length = SZ_16M,
.type = MT_DEVICE
}, {
.virtual = (unsigned long)VA_SPEAR_ICM3_SMI_CTRL_BASE,
.pfn = __phys_to_pfn(SPEAR_ICM3_SMI_CTRL_BASE),
.length = SZ_16M,
.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));
}
void __init spear6xx_timer_init(void)
{
char pclk_name[] = "pll3_clk";
struct clk *gpt_clk, *pclk;
spear6xx_clk_init(MISC_BASE);
/* 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);
spear_setup_of_timer();
}
/* Add auxdata to pass platform data */
struct of_dev_auxdata spear6xx_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL,
&spear6xx_pl080_plat_data),
{}
};
static void __init spear600_dt_init(void)
{
of_platform_default_populate(NULL, spear6xx_auxdata_lookup, NULL);
}
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,
.init_time = spear6xx_timer_init,
.init_machine = spear600_dt_init,
.restart = spear_restart,
.dt_compat = spear600_dt_board_compat,
MACHINE_END
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