hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ARM: dove: add device tree based machine descriptor 

This adds a generic DT_MACHINE for mach-dove. As with other orion based
SoCs there still is some glue code required to make all internal devices
work, i.e. auxdata is provided to pass clocks to corresponding device
drivers.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Sebastian Hesselbarth 2012-08-15 19:07:33 +02:00 committed by Jason Cooper
parent 624d0b5275
commit 81d2ef7c40
2 changed files with 74 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/arm/mach-dove/Kconfig
View File

@ -15,6 +15,13 @@ config MACH_CM_A510
Say 'Y' here if you want your kernel to support the Say 'Y' here if you want your kernel to support the
CompuLab CM-A510 Board. CompuLab CM-A510 Board.
config MACH_DOVE_DT
bool "Marvell Dove Flattened Device Tree"
select USE_OF
help
Say 'Y' here if you want your kernel to support the
Marvell Dove using flattened device tree.
endmenu endmenu
endif endif

67
arch/arm/mach-dove/common.c
View File

@ -16,6 +16,8 @@
#include <linux/clk-provider.h> #include <linux/clk-provider.h>
#include <linux/ata_platform.h> #include <linux/ata_platform.h>
#include <linux/gpio.h> #include <linux/gpio.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <asm/page.h> #include <asm/page.h>
#include <asm/setup.h> #include <asm/setup.h>
#include <asm/timex.h> #include <asm/timex.h>
@ -29,6 +31,7 @@
#include <asm/mach/arch.h> #include <asm/mach/arch.h>
#include <linux/irq.h> #include <linux/irq.h>
#include <plat/time.h> #include <plat/time.h>
#include <plat/irq.h>
#include <plat/ehci-orion.h> #include <plat/ehci-orion.h>
#include <plat/common.h> #include <plat/common.h>
#include <plat/addr-map.h> #include <plat/addr-map.h>
@ -380,3 +383,67 @@ void dove_restart(char mode, const char *cmd)
while (1) while (1)
; ;
} }
#if defined(CONFIG_MACH_DOVE_DT)
/*
* Auxdata required until real OF clock provider
*/
struct of_dev_auxdata dove_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
OF_DEV_AUXDATA("marvell,orion-spi", 0xf1014600, "orion_spi.1", NULL),
OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
NULL),
OF_DEV_AUXDATA("marvell,orion-sata", 0xf10a0000, "sata_mv.0", NULL),
OF_DEV_AUXDATA("marvell,dove-sdhci", 0xf1092000, "sdhci-dove.0", NULL),
OF_DEV_AUXDATA("marvell,dove-sdhci", 0xf1090000, "sdhci-dove.1", NULL),
{},
};
static struct mv643xx_eth_platform_data dove_dt_ge00_data = {
.phy_addr = MV643XX_ETH_PHY_ADDR_DEFAULT,
};
static void __init dove_dt_init(void)
{
pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
(dove_tclk + 499999) / 1000000);
#ifdef CONFIG_CACHE_TAUROS2
tauros2_init();
#endif
dove_setup_cpu_mbus();
/* Setup root of clk tree */
dove_clk_init();
/* Internal devices not ported to DT yet */
dove_rtc_init();
dove_xor0_init();
dove_xor1_init();
dove_ge00_init(&dove_dt_ge00_data);
dove_ehci0_init();
dove_ehci1_init();
dove_pcie_init(1, 1);
dove_crypto_init();
of_platform_populate(NULL, of_default_bus_match_table,
dove_auxdata_lookup, NULL);
}
static const char * const dove_dt_board_compat[] = {
"marvell,dove",
NULL
};
DT_MACHINE_START(DOVE_DT, "Marvell Dove (Flattened Device Tree)")
.map_io = dove_map_io,
.init_early = dove_init_early,
.init_irq = orion_dt_init_irq,
.timer = &dove_timer,
.init_machine = dove_dt_init,
.restart = dove_restart,
.dt_compat = dove_dt_board_compat,
MACHINE_END
#endif