tegra132: Replace use of clk_rst with CLK_RST_REG

Also, get rid of unused clk_rst variables.

BUG=None
BRANCH=None
TEST=Compiles successfully

Change-Id: I6487162454159a81b31fe0d6d39c2bdbed3f859a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 030081fe85fc9609fdf2003cf51b7350e08f0429
Original-Change-Id: I880ae5c396c33006f6b184cca7f171e4373f4016
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/220720
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9105
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/soc/nvidia/tegra132/bootblock.c

@@ -34,8 +34,6 @@ void __attribute__((weak)) bootblock_mainboard_early_init(void)
 	/* Empty default implementation. */
 }
 
-static struct clk_rst_ctlr *clk_rst = (void *)TEGRA_CLK_RST_BASE;
-
 void main(void)
 {
 	// enable pinmux clamp inputs

src/soc/nvidia/tegra132/i2c6.c

@@ -31,7 +31,6 @@
 #define DPAUX_HYBRID_PADCTL	0x545C0124
 
 static struct tegra_pmc_regs * const pmc = (void *)TEGRA_PMC_BASE;
-static struct clk_rst_ctlr *clk_rst = (void *)TEGRA_CLK_RST_BASE;
 
 static int partition_clamp_on(int id)
 {

src/soc/nvidia/tegra132/include/soc/clock.h

@@ -290,7 +290,7 @@ static inline void _clock_set_div(u32 *reg, const char *name, u32 div,
 #define CLK_DIV_MASK_I2C          0xffff
 
 #define clock_configure_source(device, src, freq)			\
-	_clock_set_div(&clk_rst->clk_src_##device, #device,		\
+	_clock_set_div(CLK_RST_REG(clk_src_##device), #device,		\
 		       get_clk_div(TEGRA_##src##_KHZ, freq), CLK_DIV_MASK, \
 		       CLK_SRC_DEV_ID(device, src))