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authorSekhar Nori <nsekhar@ti.com>2009-11-24 18:25:15 +0530
committerKevin Hilman <khilman@deeprootsystems.com>2010-02-04 13:29:44 -0800
commitc1978e1dfb3d171010f6a22eb0a9eed89a245666 (patch)
treec331f9d7ad6a1dcc66a14213a5de7bcdb4dc7c0f /arch/arm
parentb73b526ec36068b102e735064b61dc724d45d2db (diff)
downloadblackbird-op-linux-c1978e1dfb3d171010f6a22eb0a9eed89a245666.tar.gz
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davinci: add support for DM6467T EVM
DM6467T (T for Turbo) is a newer and faster DM6467 part from TI. The new part supports 1080p video and has the ARM running at 495MHz. More SoC information: http://focus.ti.com/docs/prod/folders/print/tms320dm6467t.html Spectrum Digital, Inc has a new EVM for this part. It is _mostly_ same as the older DM6467 EVM except for a 33MHz crystal input and THS8200 video encoder for 1080p support. The meat of this patch is dedicated to initializing the crystal frequency from EVM board file. Additional notes: I did consider some alternative ways to make the crystal input board specific including - (1) having board code initialize the crystal frequency using the first member of soc_info->cpu_clks array (2) introducing a new ref_clk_rate member in soc_info structure. But, the current way seems to be the simplest and least intruding considering that both the clock array and SoC info structure are actually private to the SoC file. Also the fact that davinci_common_init() initializes both the soc_info and clocks in one go. Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-davinci/Kconfig4
-rw-r--r--arch/arm/mach-davinci/board-dm646x-evm.c24
-rw-r--r--arch/arm/mach-davinci/dm646x.c3
-rw-r--r--arch/arm/mach-davinci/include/mach/dm646x.h2
4 files changed, 31 insertions, 2 deletions
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 033bfede6b67..0ebe185610bf 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -91,10 +91,14 @@ config MACH_DAVINCI_DM6467_EVM
bool "TI DM6467 EVM"
default ARCH_DAVINCI_DM646x
depends on ARCH_DAVINCI_DM646x
+ select MACH_DAVINCI_DM6467TEVM
help
Configure this option to specify the whether the board used
for development is a DM6467 EVM
+config MACH_DAVINCI_DM6467TEVM
+ bool
+
config MACH_DAVINCI_DM365_EVM
bool "TI DM365 EVM"
default ARCH_DAVINCI_DM365
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 8c05343bb001..542bfdbbea0f 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -30,6 +30,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
+#include <linux/clk.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -40,6 +41,8 @@
#include <mach/i2c.h>
#include <mach/nand.h>
+#include "clock.h"
+
#define NAND_BLOCK_SIZE SZ_128K
/* Note: We are setting first partition as 'bootloader' constituting UBL, U-Boot
@@ -713,6 +716,17 @@ static __init void davinci_dm646x_evm_irq_init(void)
davinci_irq_init();
}
+#define DM646X_EVM_REF_FREQ 27000000
+#define DM6467T_EVM_REF_FREQ 33000000
+
+void __init dm646x_board_setup_refclk(struct clk *clk)
+{
+ if (machine_is_davinci_dm6467tevm())
+ clk->rate = DM6467T_EVM_REF_FREQ;
+ else
+ clk->rate = DM646X_EVM_REF_FREQ;
+}
+
MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
.phys_io = IO_PHYS,
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
@@ -723,3 +737,13 @@ MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
.init_machine = evm_init,
MACHINE_END
+MACHINE_START(DAVINCI_DM6467TEVM, "DaVinci DM6467T EVM")
+ .phys_io = IO_PHYS,
+ .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
+ .boot_params = (0x80000100),
+ .map_io = davinci_map_io,
+ .init_irq = davinci_dm646x_evm_irq_init,
+ .timer = &davinci_timer,
+ .init_machine = evm_init,
+MACHINE_END
+
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 829a44bcf799..515d3edb9a33 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -42,7 +42,6 @@
/*
* Device specific clocks
*/
-#define DM646X_REF_FREQ 27000000
#define DM646X_AUX_FREQ 24000000
static struct pll_data pll1_data = {
@@ -57,7 +56,6 @@ static struct pll_data pll2_data = {
static struct clk ref_clk = {
.name = "ref_clk",
- .rate = DM646X_REF_FREQ,
};
static struct clk aux_clkin = {
@@ -925,6 +923,7 @@ void dm646x_setup_vpif(struct vpif_display_config *display_config,
void __init dm646x_init(void)
{
+ dm646x_board_setup_refclk(&ref_clk);
davinci_common_init(&davinci_soc_info_dm646x);
}
diff --git a/arch/arm/mach-davinci/include/mach/dm646x.h b/arch/arm/mach-davinci/include/mach/dm646x.h
index 8cec746ae9d2..8221153bb2af 100644
--- a/arch/arm/mach-davinci/include/mach/dm646x.h
+++ b/arch/arm/mach-davinci/include/mach/dm646x.h
@@ -16,6 +16,7 @@
#include <mach/asp.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
+#include <linux/clk.h>
#define DM646X_EMAC_BASE (0x01C80000)
#define DM646X_EMAC_CNTRL_OFFSET (0x0000)
@@ -30,6 +31,7 @@ void __init dm646x_init(void);
void __init dm646x_init_ide(void);
void __init dm646x_init_mcasp0(struct snd_platform_data *pdata);
void __init dm646x_init_mcasp1(struct snd_platform_data *pdata);
+void __init dm646x_board_setup_refclk(struct clk *clk);
void dm646x_video_init(void);
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