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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-18 12:35:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-18 12:35:46 -0700
commit9896c7b57e9d67948f1f52f903efae5ec6c74321 (patch)
tree16218e9503df222e48fef3eba661e478bb4a9aa7 /arch/arm/mach-lpc32xx
parentf2b1e0f6385d4487a81871eb47809a1375af527f (diff)
parentb54891be1a7785de7ec0e5c1fc9ba597713d22a8 (diff)
downloadlwn-9896c7b57e9d67948f1f52f903efae5ec6c74321.tar.gz
lwn-9896c7b57e9d67948f1f52f903efae5ec6c74321.zip
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Arnd Bergmann: "We get support for three new 32-bit SoC platforms this time. The amount of changes in arch/arm for any of them is miniscule, as all the interesting code is in device driver subsystems (irqchip, clk, pinctrl, ...) these days. I'm listing them here, as the addition of the Kconfig statement is the main relevant milestone for a new platform. In each case, some drivers are are shared with existing platforms, while other drivers are added for v4.7 as well, or come in a later release. - The Aspeed platform is probably the most interesting one, this is what most whitebox servers use as their baseboard management controller. We get support for the very common ast2400 and ast2500 SoCs. The OpenBMC project focuses on this chip, and the LWN article about their ELC 2016 presentation at https://lwn.net/Articles/683320/ triggered the submission, but the code comes from IBM's OpenPOWER team rather than the team at Facebook. There are still a lot more drivers that need to get added over time, and I hope both teams can work together on that. - OXNAS is an old platform for Network Attached Storage devices from Oxford Semiconductor. There are models with ARM10 (!) and ARM11MPCore cores, but for now, we only support the original ARM9 based versions. The product lineup was subsequently part of PLX, Avago and now the new Broadcom Ltd. https://wiki.openwrt.org/doc/hardware/soc/soc.oxnas has some more information. - V2M-MPS2 is a prototyping platform from ARM for their Cortex-M cores and is related to the existing Realview / Versatile Express lineup, but without MMU. We now support various NOMMU platforms, so adding a new one is fairly straightforward. http://infocenter.arm.com/help/topic/com.arm.doc.100112_0100_03_en/ has detailed information about the platform. Other noteworthy updates: - Work on LPC32xx has resumed, and Vladimir Zapolskiy and Sylvain Lemieux are now maintaining the platform. This is an older ARM9 based platform from NXP (not Freescale), but it remains in use in embedded markets. - Kevin Hilman is now co-maintaining the Amlogic Meson platform for both 32-bit and 64-bit ARM, and started contributing some patches. - As is often the case, work on the OMAP platforms makes up the bulk of the actual SoC code changes in arch/arm, but there isn't a lot of that either" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits) MAINTAINERS: ARM/Amlogic: add co-maintainer, misc. updates MAINTAINERS: add ARM/NXP LPC32XX SoC specific drivers to the section MAINTAINERS: add new maintainers of NXP LPC32xx SoC MAINTAINERS: move ARM/NXP LPC32xx record to ARM section arm: Add Aspeed machine ARM: lpc32xx: remove duplicate const on lpc32xx_auxdata_lookup ARM: lpc32xx: remove leftovers of legacy clock source and provider drivers ARM: lpc32xx: remove reboot header file ARM: dove: Remove CLK_IS_ROOT ARM: orion5x: Remove CLK_IS_ROOT ARM: mv78xx0: Remove CLK_IS_ROOT ARM: davinci: da850: use clk->set_parent for async3 ARM: davinci: Move clock init after ioremap. MAINTAINERS: Update ARM Versatile Express platform entry ARM: vexpress/mps2: introduce MPS2 platform MAINTAINERS: add maintainer entry for ARM/OXNAS platform ARM: Add new mach-oxnas irqchip: versatile-fpga: add new compatible for OX810SE SoC ARM: uniphier: correct the call order of of_node_put() MAINTAINERS: fix stale TI DaVinci entries ...
Diffstat (limited to 'arch/arm/mach-lpc32xx')
-rw-r--r--arch/arm/mach-lpc32xx/common.c95
-rw-r--r--arch/arm/mach-lpc32xx/common.h24
-rw-r--r--arch/arm/mach-lpc32xx/phy3250.c2
3 files changed, 2 insertions, 119 deletions
diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c
index 5b7a1e78c3a5..2f6067bce7c3 100644
--- a/arch/arm/mach-lpc32xx/common.c
+++ b/arch/arm/mach-lpc32xx/common.c
@@ -17,13 +17,6 @@
*/
#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/err.h>
-#include <linux/i2c.h>
-#include <linux/i2c-pnx.h>
-#include <linux/io.h>
#include <asm/mach/map.h>
#include <asm/system_info.h>
@@ -44,19 +37,6 @@ void lpc32xx_get_uid(u32 devid[4])
}
/*
- * Returns SYSCLK source
- * 0 = PLL397, 1 = main oscillator
- */
-int clk_is_sysclk_mainosc(void)
-{
- if ((__raw_readl(LPC32XX_CLKPWR_SYSCLK_CTRL) &
- LPC32XX_CLKPWR_SYSCTRL_SYSCLKMUX) == 0)
- return 1;
-
- return 0;
-}
-
-/*
* Detects and returns IRAM size for the device variation
*/
#define LPC32XX_IRAM_BANK_SIZE SZ_128K
@@ -87,81 +67,6 @@ u32 lpc32xx_return_iram_size(void)
}
EXPORT_SYMBOL_GPL(lpc32xx_return_iram_size);
-/*
- * Computes PLL rate from PLL register and input clock
- */
-u32 clk_check_pll_setup(u32 ifreq, struct clk_pll_setup *pllsetup)
-{
- u32 ilfreq, p, m, n, fcco, fref, cfreq;
- int mode;
-
- /*
- * PLL requirements
- * ifreq must be >= 1MHz and <= 20MHz
- * FCCO must be >= 156MHz and <= 320MHz
- * FREF must be >= 1MHz and <= 27MHz
- * Assume the passed input data is not valid
- */
-
- ilfreq = ifreq;
- m = pllsetup->pll_m;
- n = pllsetup->pll_n;
- p = pllsetup->pll_p;
-
- mode = (pllsetup->cco_bypass_b15 << 2) |
- (pllsetup->direct_output_b14 << 1) |
- pllsetup->fdbk_div_ctrl_b13;
-
- switch (mode) {
- case 0x0: /* Non-integer mode */
- cfreq = (m * ilfreq) / (2 * p * n);
- fcco = (m * ilfreq) / n;
- fref = ilfreq / n;
- break;
-
- case 0x1: /* integer mode */
- cfreq = (m * ilfreq) / n;
- fcco = (m * ilfreq) / (n * 2 * p);
- fref = ilfreq / n;
- break;
-
- case 0x2:
- case 0x3: /* Direct mode */
- cfreq = (m * ilfreq) / n;
- fcco = cfreq;
- fref = ilfreq / n;
- break;
-
- case 0x4:
- case 0x5: /* Bypass mode */
- cfreq = ilfreq / (2 * p);
- fcco = 156000000;
- fref = 1000000;
- break;
-
- case 0x6:
- case 0x7: /* Direct bypass mode */
- default:
- cfreq = ilfreq;
- fcco = 156000000;
- fref = 1000000;
- break;
- }
-
- if (fcco < 156000000 || fcco > 320000000)
- cfreq = 0;
-
- if (fref < 1000000 || fref > 27000000)
- cfreq = 0;
-
- return (u32) cfreq;
-}
-
-u32 clk_get_pclk_div(void)
-{
- return 1 + ((__raw_readl(LPC32XX_CLKPWR_HCLK_DIV) >> 2) & 0x1F);
-}
-
static struct map_desc lpc32xx_io_desc[] __initdata = {
{
.virtual = (unsigned long)IO_ADDRESS(LPC32XX_AHB0_START),
diff --git a/arch/arm/mach-lpc32xx/common.h b/arch/arm/mach-lpc32xx/common.h
index 2d90801ed1e1..30c9e64fc65b 100644
--- a/arch/arm/mach-lpc32xx/common.h
+++ b/arch/arm/mach-lpc32xx/common.h
@@ -19,37 +19,15 @@
#ifndef __LPC32XX_COMMON_H
#define __LPC32XX_COMMON_H
-#include <mach/board.h>
-#include <linux/platform_device.h>
-#include <linux/reboot.h>
+#include <linux/init.h>
/*
* Other arch specific structures and functions
*/
-extern void lpc32xx_timer_init(void);
extern void __init lpc32xx_init_irq(void);
extern void __init lpc32xx_map_io(void);
extern void __init lpc32xx_serial_init(void);
-
-/*
- * Structure used for setting up and querying the PLLS
- */
-struct clk_pll_setup {
- int analog_on;
- int cco_bypass_b15;
- int direct_output_b14;
- int fdbk_div_ctrl_b13;
- int pll_p;
- int pll_n;
- u32 pll_m;
-};
-
-extern int clk_is_sysclk_mainosc(void);
-extern u32 clk_check_pll_setup(u32 ifreq, struct clk_pll_setup *pllsetup);
-extern u32 clk_get_pllrate_from_reg(u32 inputclk, u32 regval);
-extern u32 clk_get_pclk_div(void);
-
/*
* Returns the LPC32xx unique 128-bit chip ID
*/
diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c
index f9209d091c4b..81265e80302d 100644
--- a/arch/arm/mach-lpc32xx/phy3250.c
+++ b/arch/arm/mach-lpc32xx/phy3250.c
@@ -159,7 +159,7 @@ static struct lpc32xx_mlc_platform_data lpc32xx_mlc_data = {
.dma_filter = pl08x_filter_id,
};
-static const struct of_dev_auxdata const lpc32xx_auxdata_lookup[] __initconst = {
+static const struct of_dev_auxdata lpc32xx_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("arm,pl022", 0x20084000, "dev:ssp0", NULL),
OF_DEV_AUXDATA("arm,pl022", 0x2008C000, "dev:ssp1", NULL),
OF_DEV_AUXDATA("arm,pl110", 0x31040000, "dev:clcd", &lpc32xx_clcd_data),