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Message-Id: <1421774715-29926-1-git-send-email-pawel.moll@arm.com>
Date: Tue, 20 Jan 2015 17:25:15 +0000
From: Pawel Moll <pawel.moll@....com>
To: Samuel Ortiz <sameo@...ux.intel.com>,
Lee Jones <lee.jones@...aro.org>,
Liviu Dudau <liviu.dudau@....com>,
Sudeep Holla <sudeep.holla@....com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
Pawel Moll <pawel.moll@....com>
Subject: [PATCH] mfd: vexpress: Remove non-DT code
Now, as all VE platforms have to be booted with DT,
the code handling non-DT case can be removed.
Signed-off-by: Pawel Moll <pawel.moll@....com>
---
drivers/mfd/vexpress-sysreg.c | 71 +++++++++----------------------------------
1 file changed, 15 insertions(+), 56 deletions(-)
diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
index 8f43ab8..3e628df 100644
--- a/drivers/mfd/vexpress-sysreg.c
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -47,71 +47,26 @@
#define SYS_HBI_MASK 0xfff
#define SYS_PROCIDx_HBI_SHIFT 0
-#define SYS_MCI_CARDIN (1 << 0)
-#define SYS_MCI_WPROT (1 << 1)
-
#define SYS_MISC_MASTERSITE (1 << 14)
-
-static void __iomem *__vexpress_sysreg_base;
-
-static void __iomem *vexpress_sysreg_base(void)
+void vexpress_flags_set(u32 data)
{
- if (!__vexpress_sysreg_base) {
+ static void __iomem *base;
+
+ if (!base) {
struct device_node *node = of_find_compatible_node(NULL, NULL,
"arm,vexpress-sysreg");
- __vexpress_sysreg_base = of_iomap(node, 0);
+ base = of_iomap(node, 0);
}
- WARN_ON(!__vexpress_sysreg_base);
-
- return __vexpress_sysreg_base;
-}
-
-
-static int vexpress_sysreg_get_master(void)
-{
- if (readl(vexpress_sysreg_base() + SYS_MISC) & SYS_MISC_MASTERSITE)
- return VEXPRESS_SITE_DB2;
-
- return VEXPRESS_SITE_DB1;
-}
-
-void vexpress_flags_set(u32 data)
-{
- writel(~0, vexpress_sysreg_base() + SYS_FLAGSCLR);
- writel(data, vexpress_sysreg_base() + SYS_FLAGSSET);
-}
-
-unsigned int vexpress_get_mci_cardin(struct device *dev)
-{
- return readl(vexpress_sysreg_base() + SYS_MCI) & SYS_MCI_CARDIN;
-}
-
-u32 vexpress_get_procid(int site)
-{
- if (site == VEXPRESS_SITE_MASTER)
- site = vexpress_sysreg_get_master();
+ if (WARN_ON(!base))
+ return;
- return readl(vexpress_sysreg_base() + (site == VEXPRESS_SITE_DB1 ?
- SYS_PROCID0 : SYS_PROCID1));
+ writel(~0, base + SYS_FLAGSCLR);
+ writel(data, base + SYS_FLAGSSET);
}
-void __iomem *vexpress_get_24mhz_clock_base(void)
-{
- return vexpress_sysreg_base() + SYS_24MHZ;
-}
-
-
-void __init vexpress_sysreg_early_init(void __iomem *base)
-{
- __vexpress_sysreg_base = base;
-
- vexpress_config_set_master(vexpress_sysreg_get_master());
-}
-
-
/* The sysreg block is just a random collection of various functions... */
static struct syscon_platform_data vexpress_sysreg_sys_id_pdata = {
@@ -210,6 +165,7 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
struct resource *mem;
void __iomem *base;
struct bgpio_chip *mmc_gpio_chip;
+ int master;
u32 dt_hbi;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -220,11 +176,14 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
if (!base)
return -ENOMEM;
- vexpress_config_set_master(vexpress_sysreg_get_master());
+ master = readl(base + SYS_MISC) & SYS_MISC_MASTERSITE ?
+ VEXPRESS_SITE_DB2 : VEXPRESS_SITE_DB1;
+ vexpress_config_set_master(master);
/* Confirm board type against DT property, if available */
if (of_property_read_u32(of_root, "arm,hbi", &dt_hbi) == 0) {
- u32 id = vexpress_get_procid(VEXPRESS_SITE_MASTER);
+ u32 id = readl(base + (master == VEXPRESS_SITE_DB1 ?
+ SYS_PROCID0 : SYS_PROCID1));
u32 hbi = (id >> SYS_PROCIDx_HBI_SHIFT) & SYS_HBI_MASK;
if (WARN_ON(dt_hbi != hbi))
--
2.1.0
--
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